2008

June

http://www.diary.com/g/162167

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http://www.diary.com/g/963e93

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http://www.diary.com/g/3a6003

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http://www.diary.com/g/926c4e

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http://www.diary.com/g/1b72fe

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http://www.diary.com/g/6eb25f

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http://www.diary.com/g/382d0b

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http://www.diary.com/g/f809da

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http://www.diary.com/g/bb8580

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http://www.diary.com/g/b338b8

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http://www.diary.com/g/8780b8

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http://www.diary.com/g/1f8537

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http://www.diary.com/g/d9456a

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http://www.diary.com/g/3d215e

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http://www.diary.com/g/07a9de

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http://www.diary.com/g/d0ca19

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http://www.diary.com/g/14079e

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http://www.diary.com/g/afe62b

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http://www.diary.com/g/847d38

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http://www.diary.com/g/0445d0

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http://www.diary.com/g/c89a80

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http://www.diary.com/g/8b0082

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http://www.diary.com/g/501fec

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http://www.diary.com/g/582742

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http://www.diary.com/g/6a1af8

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http://www.diary.com/g/fb5574

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http://www.diary.com/g/6fd555

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http://www.diary.com/g/c74fbe

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http://diary.com/g/317423

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http://diary.com/g/62c9d0

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http://diary.com/g/109bb9

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http://diary.com/g/d2557e

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http://diary.com/g/194af2

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http://diary.com/g/4142da

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http://diary.com/g/724fdd

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http://diary.com/g/39150e

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http://diary.com/g/f7042f

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http://diary.com/g/da04ea

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http://diary.com/g/2d790a

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http://diary.com/g/1b9400

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http://diary.com/g/de732c

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http://diary.com/g/162a1f

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http://diary.com/g/656cd5

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http://diary.com/g/91500f

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http://diary.com/g/2e5389

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http://diary.com/g/ea3460

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http://diary.com/g/9848f9

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http://diary.com/g/6527e1

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July

http://diary.com/g/90aaca

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http://diary.com/g/b46b30

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http://diary.com/g/c0833e

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http://diary.com/g/c30fd0

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2009

February

It is the first. I will shave!

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I have shaved, but not very thoroughly. My moustache is now catching up with my beard though, so that is good news.

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In reply to @JanvierUK

@JSlayerUK you have an android phone? wow, is it very good? I want to replace my n95 in a while but the g1 didn't look too mind-blowing.

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snow!

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We have the ingredients. Club sandwich time.

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club sandwich ruined by weirdo bread.

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just destroyed my mouth with an insane madras

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tesco value cookies are a bum deal

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Writing corny narrative for the game.

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I have really slow reactions. Apparently the mean is 180-200ms, I consistently get around 440ms.

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making pleasing progress on the game

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In reply to @JanvierUK

@JSlayerUK Not just you. I tend to think I'm pretty fantastic, and I find writing cover letters impossible too.

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Scone success! Clotted cream and everything.

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Walktall just sent me a sale email with just size 13 shoes in it. Clever thinking!

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no sir, I don't think I am a fan of sweetmeal biscuits

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I don't know when it became OK to put chorizo on a hamburger, but I certainly wasn't consulted

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interactive timeline snow map! yes! http://is.gd/iwTS

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worked out how to do the theorem prover, will code tomorrow.

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well, technically it's tomorrow. couldn't sleep, and got it working first time!

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flat out do not understand my grammar parser. Might have to rewrite it.

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turns out my logic thing wasn't as good as I thought. I've rewritten it the proper way, and the grammar thing is still getting on my nerves.

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In reply to @JanvierUK

@JSlayerUK practically every little village in northumberland has a shop with one in the window. They reappeared a few years ago, dunno why.

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watch Ketch! and Hiro-Pon Get It On on iplayer. Very funny but so arty.

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vanishingly little progress made today, still getting the new grammar thing to do everything it needs to

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finished new grammar system!

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today I had a serrano, monterey jack and mayo sub. It was ok!

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is some kind of programming god

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http://www.txbeef.org - tex-mex recipes galore!

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In reply to @aperfect

@aperfect was that on mac or pc?

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"the joy of sex education" arrived today, rated 18. Progress!

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staring at the Koala Survivor, so happy

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In reply to @JanvierUK

@JSlayerUK marcus brigstocke had a go with the late edition but he didn't have anywhere enough good writers to make it work.

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loooves the snow

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In reply to @brittneybean

@brittneybean wow! my wongo-tall-guy chair cost about £400, but uni disability support paid for it. I'll look on ebay when it breaks, thanks

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finished marking. 3 1/4 hours! Some students' handwriting is like a child's scrawl.

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In reply to @kenfodder

@kenfodder shouldn't you be using diary instead of twitter?

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the exciting bossa nova samba rhythms are still my favourite albums

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it is in fact The Bossa Nova: Exciting Jazz Samba Rhythms

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got to write a new font system because hardware-filtered scaling looks awful

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9pm and I still haven't made my dinner

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In reply to @aperfect

@aperfect making a hilarious attempt at meatballs following the old fashioned cookbook

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meatballs would've been nice if I'd had a real tomato sauce. At least they were cooked.

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New font thing works! Still a programming deity.

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In reply to @aperfect

@aperfect you and alisha's attic, sheesh

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working on new fencing bit, dude is already comical

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bad mood = dominos

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cutting the vitruvian man into bits for a skining experiment

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sorting out my eejit flatmates' energy bill affairs

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In reply to @kenfodder

@kenfodder heh, you mean there isn't someone at twitter judging every picture?

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In reply to @aperfect

@aperfect that can not be good for you

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so much traffic. What's the deal,geordies?

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just realised I haven't looked at b3ta in weeks!

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"Kangaroos are not terrifying. This is why so many tourists are mauled by them."

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In reply to @brittneybean

@brittneybean just say 'BFF' a lot. They love it.

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I recant all opinions I have held of PG Wodehouse

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trying to decide how to draw fencing dudes

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I'm sure radio 4's late night schedule is designed to instil existential doubt

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new series of one! radio 4! listen!

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I now own three different sets of compasses. I might have a problem.

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In reply to @aperfect

@aperfect wow, where?

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this student has narrated every one of his thought processes on his homework. I do not need diagrams explaining how to read numbers!

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or a reminder of the values of hexadecimal digits on EVERY QUESTION

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just destroyed my nose with too much onion in coleslaw, and destroyed my spare ribs with too much heat

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playing jumpman lives! loving it

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In reply to @aperfect

@aperfect damnit!

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I'm going to read some more Jeeves. Nothing else is presenting itself for my attention.

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In reply to @GreyAlien

@GreyAlien no way, skidracer has just offered to help with music for the game!

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on a seaside adventure. Blyth beach is lovely and calm, like the kind of thing you'd find on a model train set

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lovely sand at blyth. Don't know why newbiggin felt they needed new sand. How different can it be just a couple of miles up?

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wind's beginning to pick up

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spent an educational 15 minutes driving through blyth town centre following signs for bedlington.

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now at cambois beach. Not much here apart from a pair of wind turbines sticking out of the ocean like neptune giving us jazz hands

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had to drive through blyth power station to get here by the way. Don't know if it still exists, but it felt like i was becoming its fuel

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there is a big ol' pipe at cambois which spews out sewage, and a dogging site where gays, it would seem, are not welcome

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first sensation that welcomed me to newbiggin-by-the-sea was the smell of dog poo. Let's see if i can see that statue

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these kinds of things are meant to be engineering marvels, not sensible compromises given situational constraints

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RNLI were washing out their shed. Nice and warm here, pity about the rest of it

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took the wrong turn off the coast road but ended up at QE2 country park. Lovely! It's got swans and a big lake and things.

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arrived at druridge bay country park. Not the same thing cp druridge bay itself! Leaving, lovely scenery but no way i'm paying and displayin

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was enticed to hauxley by a nature reserve. Lovely place! Good georgian buildings. Seem to have found the coast again.

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brought a moleskine to write in but i'm using twitter instead. Which is more pretentious?

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just noticed shozu hasn't been geotagging anything since blyth! Arr

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failed to exit Amble pointing in the correct direction, hungry, clouds arrived, so I've come home

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had a flash of inspiration for fencing controls

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I concede defeat to this bug. It has me absolutely baffled, and is a show-stopper

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fixed the bug! stupid y axis, hiding from me

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In reply to @arowx

@arowxGames another blitzer from the north-east! (I'm warpy on the bb.com forums btw)

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In reply to @aperfect

@aperfect the internet is a scary place

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at the barber's. Thought i might hit the lunchtime rush but apparently there's no such thing in pity me

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In reply to @JanvierUK

@JSlayerUK I once accosted tony benn in the street at the miners' gala. he is a funny person

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game is back on track. Had a brainwave

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a whole month until the f1 starts! can't wait

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In reply to @GreyAlien

@GreyAlien well done! Is 64bit support for the bigfishgames app in the works so I can try it out?

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In reply to @GreyAlien

@GreyAlien I clicked that, but then the installer says "failed to open file for writing" for every file

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In reply to @GreyAlien

@GreyAlien maybe just store tiny black/white pixmaps of each character, and apply effects at install/run time

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In reply to @GreyAlien

@GreyAlien actually, just remembered my dad wrote the first ever kanji gui. I'll ask him how he did it

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March

In reply to @GreyAlien

@GreyAlien if you're around, get latest github version of game, exciting new gameplay!

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man, the end of being human was such a let-down

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this student writes like a 4-year-old! getting on my nerves

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In reply to @JanvierUK

@JSlayerUK congrats! what's the job?

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there's a glaswegian on the news who used to drink 14 bottles of wine a day. Top Glaswegian!

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Decimal Mod http://tinyurl.com/bgktac only way to play quake 3!

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exploring bold new directions for bacon in cafe royal. Confit bacon - words can not describe the taste. My pants can

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What is the deal with shoe shops only stocking up to size 9?

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In reply to @ilythruthephone

@sciencefest I've just discovered I'm in London the weekend of the makerfaire. What other sciencefest events do you recommend?

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Curry sauce in the fridge has acquired to kill with a single taste

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http://twitpic.com/1tlew - Check out me new clogs

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Set off to work on time for once! Let's see if i can remember to do all my to dos

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My new shoes are absolutely killing me. I can't feel my ankles any more

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I like a lot of chocolate on my biscuit, and I have joined the Club

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In reply to @ilythruthephone

@sciencefest thanks, I've booked tickets to see the ig nobel thing!

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Why are there vastly more boy ducks than girl ducks?

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In reply to @NewcastleCC

@NewcastleCC I'm reading The World of Jeeves by PG Wodehouse. I had avoided it for far too long. #wbd09

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problems in my life: cold apples out of the fridgew

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In reply to @JPickford

@JPickford is that in reference to the thing about boy ducks? I can't begin to see the connection between those things.

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about to leave for tutoring. parked my car in an improbably small space last night, hope someone moved

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reading candide again, had forgotten how completely bonkers it is. Need to increase the madness in the game

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In reply to @naomzzb

@naomzzb twitter's for, like, not msn but not email either. It grows on you.

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"someone took a note in the face" - awesome dream which had a bubble bath explosion in it

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"Brawn GP"? Really?

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Pretty Lights is good music

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WH Smith : now world of compasses, with protractor land

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fat jazz man is singing! What a beautiful sight.

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the new city library has those horrific metal slats across it like the life car park! Nice inside though

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i guite enjoyed the yoko ono thing at the baltic

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back at home, having a wonderful day

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the new bbc weather thing keeps forgetting where I live

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In reply to @aperfect

@aperfect here's a controversial thought for you - I think sunday morning might be my favourite track on tragic kingdom

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In reply to @GreyAlien

@GreyAlien care to share?

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In reply to @kenfodder

@kenfodder yes! I love that advert too!

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had a brainwave - use syllogisms in philosophy game

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reading about tableau methods for proving first order logic theorems.

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I've made an executive decision to get the htc magic, just need to wait a month for it to come out!

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In reply to @ilythruthephone

@sciencefest I loved eepybird yesterday! my bro took video: http://is.gd/moq3

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I am at the limit of human boredom

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reading a stats course. This isn't what I signed up for!

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In reply to @brittneybean

@brittneybean so they're saying the business world needs fewer people who understand finance? What?

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PhD application submitted!

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In reply to @aperfect

@aperfect are you thinking of starting a magazine?

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stayed up far far too late last night, and downstairs were having a crazy loud party.

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http://media.shozu.com/cache/portal/media/16b8a8/285213064 - 07032009179

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In reply to @ShoZu

@ShoZu just tried out twitter uploads, couldn't the url be shorter, something like tw.shozu.com/shortkey ? The truncated long url looks odd.

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oh no! just remembered I was going to pick up my marking today, so I don't have to do it at the weekend! disaster plan!

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random old lady just sat down opposite me in starbucks. She hasn't said a word.

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pooped. Need burgers

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in gbk!!!

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just had a fantastic chicken melt and ice chocolate in caffe milan in kensington

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In reply to @JanvierUK

@JSlayerUK it's been done, sorry

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what? greek student has got his greek letters wrong. THE WORLD IS UPSIDE DOWN AND WE WILL ALL FALL OFF!

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In reply to @theyellowstereo

@theyellowstereo I'm still getting 503 errors intermittently

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In reply to @MartinMagni

@Martinmagnusson your concept game looks a lot like what I've been doing lately! I'd be interested to find out details of what it's doing

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In reply to @aperfect

@aperfect did you like it?

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In reply to @MartinMagni

@Martinmagnusson http://www.somethingorotherwhatever.com but the relevant stuff isn't up there yet. check out Trader though

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just spent an hour and a half helping two guys with dendrograms. You may ask what they are. I did.

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energy madness continues!

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no idea what to do with my tutee today. Just printed out yet another past paper

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getting my code repository back in order, should all be in one place now

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In reply to @aperfect

@aperfect A Camp sucks and you suck

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In reply to @kenfodder

@kenfodder you could use street view in conjunction with geocoding diary entries - eg I went here to eat, visited dude at this place etc.

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In reply to @aperfect

@aperfect that's why I use twhirl

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why is it always the goths who are out enjoying the sunshine in the middle of the day?

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my feet are quite perfectly perched out the window and to move them would reduce my enjoyment of the day considerably

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making dendrograms of 2d points. Can't think what to do with them yet

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aahh what is going on today? just reopened the code I was working on, and the file is blank!

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In reply to @komiga

@komiga luckily, I'd put it on the code archives when I finished it. On reflection, it's completely useless to me, so no problem!

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100% free of ideas

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I have died laughing listening to the letter 25 minutes into this week's bugle

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so many of the daily rituals at the start and end of radio 4 seem like they were conceived expressly for the purpose of disseminating codes

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I revise: the morning is for nuclear submarine launch codes, the night schedule is designed to make you doubt the worth of existence

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In reply to @nilium

@nilium I always thought nicholas cage was on a quest to become a dadaist self-parody

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back to twitterfox, twhirl keeps forgetting what buttons do

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techno-madness continues. I think my phone problems were down to the pagefile counting as free space, so it actually didn't have any spare

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ahhh pepsi have changed the shape of their ringpulls my world is collapsing please help

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the squirrel just dug something massive out of the ground and ate it on the fence. He seems much less rascallous now.

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I am an intellectual wasteland. What to do?

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hello what is this? Two of the Cowards in a programme called "Brave Young Men", on iplayer now.

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listening to Na Na Ni by Fredrik, very cool

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In reply to @blitzbasic

@blitzbasic Function a(n)
Return n=1 Or n*a(n-1)
End Function
Print a(5)

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In reply to @blitzbasic

@blitzbasic better! Graphics 99,99
Local x#,y#
While 1
a=MouseX()*4
x=Abs(x+Cos(a)) Mod 99
y=Abs(y+Sin(a)) Mod 99
DrawRect x,y,1,1
Flip
Wend

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In reply to @GreyAlien

@GreyAlien hah, I spend 10 minutes solving that guy's problem and writing out a nice explanation, and you beat me with "google it"!!

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the first google suggestion for "how to use" is "how to use a condom"? get it the right way round??

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finally working on picaresque again

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In reply to @JanvierUK

@JSlayerUK sounds like me yesterday

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the BPA is good music

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In reply to @JanvierUK

@JSlayerUK I rampaged and destroyed sundries in my room

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first picaresque commit in about three weeks!

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In reply to @kenfodder

@kenfodder that is like the stereotypical geek thing

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In reply to @GreyAlien

@GreyAlien yeah, rub it in

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In reply to @GreyAlien

@GreyAlien just had a look at my old bb.com posts, didn't realise you'd been stakling me for so long!

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SOCKCESS! found a matching pair, so happy

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http://tinyurl.com/ch9hqt - Love my new vans -

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In reply to @aperfect

@aperfect do you want national trust membership again this year? the renewal letter's just arrived

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yeesssss! I have conquered my radio watch! now both bits tell exactly the right time! today is a good day

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maths is like the best JML product ever - every topic ends with 'but wait, there's more!'

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no news make cp go crazy

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In reply to @GreyAlien

@GreyAlien that had better not be a dig at me!

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oh my god this dude has written more words criticising my article than I wrote in the original! http://tinyurl.com/d9dtge

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In reply to @aperfect

@aperfect not up here, it's quite gloomy

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pulled a muscle in my back while eating a bacon sandwich.

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tesco chocolate sandwiches are my new favourite biscuit

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what is the deal with sourceforge deciding it doesn't exist?

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In reply to @nilium

@nilium I was just looking at it, and then it didn't exactly stop responding but it won't load either. dns resolves, but no progress is made

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In reply to @rossturk

@rossturk it stopped responding for a while. I was looking at it, then it stopped responding, but dns resolved fine and other sites worked

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yahoo maps is so awful. flickr geotagging could be so much more useful

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that shreddies hunger monster has started drumming on my tummy. Should've locked hunger up til lunch!

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In reply to @aperfect

@aperfect I really can't see OnLive working

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In reply to @aperfect

@aperfect looking space, ha! you've cropped even more of it off

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In reply to @fatfieldfoodie

@fatfieldfoodie hello!

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April

In reply to @brittneybean

@brittneybean take pictures! this will be a defining moment of our times!

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shaved on the 1st!

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finished the chocolate sandwiches, oh no!

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wrote shunting-yard algorithm in blitz; it worked first time. Glad!

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I flat out do not understand what it is hamilton and mclaren did.

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why does washington smell of fish?

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at dad's, he hasn't even been in the shower yet.

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headphones don't fit my sprocket! Can't listen to the bugle, bummer

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In reply to @aperfect

@aperfect you've changed, man

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In reply to @kenfodder

@kenfodder I'm having trouble at the moment trying to pay my final bill for scottish power. Shoddy business!

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In reply to @aperfect

@aperfect massive hp touchsmart for £500 in fenwicks! Not good for nana but good deal, no?

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In reply to @aperfect

@aperfect was 979 but it was returned and had a tiny bit of trim missing, otherwise mint condition

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got my media player auto playlist working again, and I am listening to good music once more! happy day

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wmp has started playing the next song down in the playlist, while claiming to be playing a different track

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In reply to @aperfect

@aperfect was 979 but it was returned and had a tiny bit of trim missing, otherwise mint condition

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gosh it's hot!

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at the blacksmith's in belsay having poached egg and ham

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mmmmmmmm

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new red dwarf is not bad!

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made Blitz on Rails

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ping pong season is open!

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incredibly, starbucks is still open

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oh no, it's closed

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is there an opposite of esprit d'escalier? I remembered something I said yesterday and thought it was exactly the right thing to say

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got my PhD offer!

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In reply to @arowx

@arowxgames look at the list of people following @blitzbasic

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In reply to @MartinMagni

@Martinmagnusson thanks! it's at newecastle university, same as my undergrad, on decision problems in group theory

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In reply to @arowx

@arowxgames what is it?

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In reply to @arowx

@arowxgames looked to me like the small one was on top of the big one. the light would be refracted on the inside one, which is hard to do..

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this week's newswipe is good

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oh dear, the bbc have used the same stock snake image twice in two different stories

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oh, long-winded student! I haven't missed you at all!

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long-winded student no.2 has managed to constrain himself to 3 times the average!

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In reply to @arowx

@arowxgames I take it that's not a 24hour clock?

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I dislike students who use cheap paper

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uncomfortably farty after a piri piri pizza

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ethics: is it right to give arbitrary marks for copied answers in the hope that the one who gets fewer marks complains?

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"The Dowager Duchess of Devonshire" - fantastic! She worked hard to get all that alliteration

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my car's been broken into!

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and then I locked myself out of the flat

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wasted 8 quid on stronghold. too german-autistic for me

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in fact, that's not my problem with it. It just has a rubbish interface and doesn't draw me in at al

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going to have a go at 3d

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In reply to @aperfect

@aperfect for example http://dontclickthis.whatingods.name/ ?

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I try not to be one of those people, but i'm sitting on my back step playing french radio and writing in a moleskine

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hewwo! iplayer hd! http://news.bbc.co.uk/1/hi/technology/8008886.stm

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wow it's good! I might stop watching normal telly

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just had a girl at the door asking for Bruce and Conrad. Who's called Conrad these days, and why can't he give proper directions?

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just learned that the doctor at the end of the street is called Konrad Conrad. WHERE ARE THEY COMING FROM?

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In reply to @JanvierUK

@JSlayerUK I was just last night trying to decide who I should vote for next time. I think labour are out unless they calm down about terror

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In reply to @GreyAlien

@GreyAlien I'm working on the game again!

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there is/was a mathematician called Houshmand! That settles it, my next pet/child has its name

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there is no finer roll than the sub

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got a headache from writing too much rad code

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http://tinyurl.com/db2qmj - Discovered a whole new bit of jesmond dene!

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got up and ready nice and early for work then remembered it doesn't start until next week!

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Lucy Schwartz is perfect

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tomato soup time!

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I made a mistake - it was tuna sub time

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one day I will remember the bit of code I keep commenting out first time

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empty google reader for the first time in months. I am at the limit of nothing-to-do-tude

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I am so massively sweaty

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I can not understand how anyone could like puff pastry

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just spent 30 minutes refuting a student's nonsense

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just pulled a ferrari - wrong clothes for the weather

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massively bored. Nobody comes to maths aid on sports wednesday!

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so nobody came in for the whole three hours, then ten minutes before leaving time a torrent of people with really hard problems appeared!

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xkcd has got a bit better lately

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ruddy southern builders, coming up here and taking jobs from honest hardworking geordies

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May

I will stop complaining about my graphomanic student when he stops giving his working in triplicate

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why has every single student chosen the same "random" number for their encryption?

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I just sneezed! Seems one of the many possible disease vectors I've encountered lately has given me swine flu

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what a rip. the htc magic is £50 more in the vodafone shop than the vodafone website

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parmageddon! thanks to ben goldacre for correctly naming the current disaster

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o2 need to hurry up sending my PAC code

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got my pac code! had to ring up for it again though

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overshot by 45 minutes again at maths-aid

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In reply to @fatfieldfoodie

@fatfieldfoodie two students came in wanting their whole course explaining so I couldn't leave until 2.45

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Magiiiiiiic!

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In reply to @kenfodder

@kenfodder that is fantastic!

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I will have to accept that this phone is going to get a lot of food on it

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Wikitude is mind-blowing

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Best game so far on android is buka

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In reply to @ToonLibraries

@ToonLibraries how do the music download stations work? are they for music in the library or are they just ways of accessing web music shops

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In reply to @aperfect

@aperfect they've always done us maps

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In reply to @kenfodder

@kenfodder but it's been leveraged to be much more useful!

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In reply to @aperfect

@aperfect you also won't get to servant live game because there's no way I'm going with you

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In reply to @fatfieldfoodie

@fatfieldfoodie my winner phone can play iplayer anywhere, unlike yours!

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any suggestions for a text message noise? the goat is getting old

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K-9 news was making my phone really slow, and I've now found the real email app so all is good

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In reply to @JanvierUK

@JSlayerUK there are plenty of non-superhero comic book characters

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At the race for life, hyperdosing might cure my colourblindness

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The crowd goes wild as cp gets the Frisbee down from the tree by throwing the stick with a rope attached over it and pulling on the rope

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A totally rank smell has appeared in my room, no idea where from

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Chris waddle has a mondo crazy accent

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saw a kid in wh smiths wearing a "white pride is not racism" t shirt. nice.

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daaaamn! I forgot flight of the conchords was on tonight

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making a sort of object database thing with lazy evaluation

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long-winded student is the bane of my existence

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I was just thinking about eyepatches and then i saw a girl with an eyepatch

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helped a zimbabwean lady pick a mouse

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having a technology nightmare

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oh my god I love the smell of PVA

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In reply to @JanvierUK

@JSlayerUK good luck!

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couldn't even park on my own street!

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In reply to @JanvierUK

@JSlayerUK no chicks?

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who likes lo-fi music? what do these people look like? I don't understand.

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another uninspiring emusicsmas. can anyone recommend some good new summery music?

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writing nonsense on big paper

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it's socks o'clock, time to go outside while it's sunny

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oh wow, they're still updating rinkworks.com!

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bought the settlers for my phone. it's not the game I know and love!

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that pizza has had its awful revenge

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the singleton design pattern as applied to socks: a case study. c perfect, 2009

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one day I will think of a way of taking a book to the park without also having to take my big backpack

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gosh heaton park's a lovely place

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this dude next to me is not afraid to get his hands dirty in order to get the most out of his rolo choc pot

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In reply to @aperfect

@aperfect but then I'll be a poser because it's an obscure classic

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In reply to @aperfect

@aperfect oh no! tragedy!

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FINALLY cracked my elbow! sweet relief!

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said 'good morning!' to some poachers in the park. very agreeable chaps

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minor achievements in a dog's life: picking up all of your toys at once

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In reply to @aperfect

@aperfect spymaster is a pretty straightforward click-em-up. I've got am idea for a much better twitter game

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In reply to @aperfect

@aperfect crouton

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In reply to @aperfect

@aperfect tinny

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In reply to @aperfect

@aperfect attain

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June

shut up, gordon brown!

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it's hard to plan meals when it's so hot

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yellow doesn't go with green, does it?

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In reply to @kenfodder

@kenfodder it's been the same here for a while, thanks to the RIP act

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In reply to @brittneybean

@brittneybean they're great! the video for 'multiplayer' is ace

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In reply to @aperfect

@aperfect cool new show at the design museum, according to front row

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continuing my quest to clone ruby on rails in blitzmax, I've made an http server and the clever routing system

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so massively chuffed with myself for making this http server work

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the usb in my laptop has died, maybe it'll come back

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saw a woman jogger with massive teeth as she ran past, she spoke American

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just had an epic question answering session with a lady from the office of national statistics

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In reply to @GreyAlien

@GreyAlien so that'll be two books then?

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just found opening-times.co.uk. it's like isabevigodadead.com for sainsburys

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textile has horrible syntax and I should've stuck with reST

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on the flowchart of which animals avoid which other animals, apparently there is no route between me and bunny rabbits.

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finally joy my B-tree algorithm working, after deciding to ignore the weird academic explanations and look at pretty graphs

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In reply to @aperfect

@aperfect man, that sounds like exactly what I'm making

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In reply to @aperfect

@aperfect David eddings has died!

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I think one of yesterday's socks is stuck in my trousers but I'm in waitrose. and I can't check

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man, no sock. what is this odd sensation in my pants?

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phew,my xbox is still in warranty

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the ups collection address form has a 'shire' field, below 'street' but above 'county'

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dreamt that a geordie accentuate was the most efficient way of speaking

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on my way to hexham for some cowboy kettle chili mix

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going to have a look at hadrian's wall now

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at chesters cavalry fort. rain can not touch god's own Northumberland, the weather is glorious

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English Heritage is a total rip.

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TCP and burnt tomatoes are on opposite ends of my smells preference spectrum

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everyone is uncomfortably full after chili con queso

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oh no spicy burps!

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dare to dream: room revolution '09 in progress

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In reply to @GreyAlien

@GreyAlien happy birthday! Hope you had a good one

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Every time I walk into my room it cheers me up, now I've rearranged it

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I'm not a fan of this belly any more, going to get rid of it

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Rival teams of ticket inspectors arguing on the platform about who gets the next train

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I walked straight past whitley bay because I've only been there when it's dark, and when I got back I managed to walk to monkseaton station

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I need something to do

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I find it so much easier to sketch with massive permanent markers than with normal sized pens

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Just bought a bunch of pens, but not enough to justify a carrier bag. Now walking through heaton looking like I've got double thigh cancer

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Man, I got a bum deal on these pens. Not going to that shop again

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Going to attempt mulligatawny soup for the first time.

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I love the gordon brown impression in 'the secret world' on radio 4

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I've been stuck at home all morning trying to establish what's wrong with the phone wiring

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MS sent me a brand new xbox with a new warranty and a month's free xbox live. Nice!

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http://s3fm.co.uk/permanentbedtime mmmmm

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Paid a fiver to go on the worlds tallest spinny thing at the hoppings. Well worth it!

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Going to tynemouth farmers market, probably won't make it back for qualifying

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Just noticed that all the signs at wallsend metro are in Latin

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Bought some top food and might just make it back for the end of quali

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Loving some Munk while I install the new windows

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forgot it was emusicsmas. This day gets better!

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This 'real Cumberland bacon' is the saltiest thing I've ever eaten

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What does one eat at kfc? I think we're going to get some

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Finishing off the world's saltiest bacon by making a BLT pizza

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In reply to @SlashdotMedia

@androidandme Google chrome has blacklisted your site for apparently hosting malware. Might be to do with your new host?

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I miss sitting outside in my pyjamas on a sunny day

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Wow, the chaser's war on everything is on bbc four at ten tonight. Ace!

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Why does the whole of kingston park smell of rich, melting chocolate? I am losing my mind to desire

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In reply to @beefok

@beefok strewth, that's a grim thing to post about

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Playing battlefield heroes, have yet to see the Nazis lose

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at dad's house, comparing phones. Mine is clearly loads better, why won't he admit it?

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Bought a maths book that was 198 years old for a fiver at tynemouth book fayre. Fascinating!

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Just dominated battlefield heroes. Feeling pretty special

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Accidentally made a massive omelette instead of a normal one, to go with my chips and onion rings. It's full of bacon as well

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In reply to @alimcg86

@alimcg86 I know how it feels! that's what I have to pay whenever I want shoes.

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July

three pigeons and a blackbird having fun in a puddle; cp not welcome

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Where's the thunder storm the bbc insisted would be arriving during my constitutional? I could still be out there in the glorious sunshine!

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Not a fan of the beetle having a kip on top of my (sealed) bag of chicken

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Can't believe how unbalanced the snipers are in bfh

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Phone was in sun; put phone in pocket; leg is burnt

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In reply to @canwegoclub

@canwegoclub I prefer to think of it as a tax on optimists

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In reply to @canwegoclub

@canwegoclub I've never bought a lottery ticket in my life, so I'll be more shocked than you if I win

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Had a lovely day at the beach with Leo and Gabi

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Leo just spotted an engraving error in the 1986 entry on the Wimbledon champions board. Top spotting!

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In reply to @eqdynamics

@eqdynamics I don't think he's on twitter

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God I love being out in the rain

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At the hospital, dad is negotiating the terms of his release with the consultant

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Just finished Michael Frayn's Collected Columns, which I enjoyed a lot

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In reply to @aperfect

@aperfect what have you bought?

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In reply to @JanvierUK

@JSlayerUK What happened? My mum wants to know

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Saw a blackbird with some white feathers. How did that happen?

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In reply to @nilium

@nilium it wasn't an albino, it just had a few patches of white

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The steak caesar salad at cafe royal owns me

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I'm very confident that the channel 4 comedy sponsor guy bust now be the most hated man in Britain

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Adam is fluffy traveller of the month July 2009

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in America! We had dinner then lunch on the plane, and now it's 8pm local time. Do we need dinner again?

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Jackson Hole is a really cool place

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On the way to yellowstone!

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In Cody, Wyoming. Scared by the patriotism and the guns and the Fox News. Hope the food is good

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Oh no, Adam has started snoring! If I wanted to listen to that, I would've gone on holiday with dad

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Spare ribs at Ted's Montana Grill was the best meal in America

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Aaargh, the f1 sounds like an amazing race and I can't watch it in yankytowne!

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Enjoyed the baseball quite a bit. My Rockies won, or rather, Adam's Giants lost

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back in England, with stories for all and gifts for some!

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SEVENTY TWO EMAILS? Never leaving the house again

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real dairy milk is better than almost everything I ate in america

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I have parked in BMWland. And I'm half an hour early for the flight. I blame Leo

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August

In reply to @AndyOvine

@AndyOvine har har funny

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In reply to @GreyAlien

@GreyAlien you sound like one of the fat cats from a looney tunes cartoon, endlessly monologuing the flow of money

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Sat down for fish and chips in saltburn ready to enjoy an honest English meal and I was given an American can of coke! There is no escape!!!

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"what a fun, sexy time for you"

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A robin just flew into my room, close enough for me to grab it if I'd wanted. Was it on a dare?

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Aahc 4od is stuck in an endless advert loop. The 3 comedy guy is the worst person in the world

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Arrived at the Gite, and the TV only gets British channels. WHAT.

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In reply to @aperfect

@aperfect what does that mean?

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just did a little bike ride on the gite dude's road bike. Less comfortable than riding a horse

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if pigs could fly, would the wings be the tastiest part?

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The number of French magazines with bare breasts on their covers is astonishing. Quite a few are hardly relevant to the subject matter at al

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I love the new mstrkrft album

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new cabinet magazine! Just renewed as well, and I can't believe how cheap it is for what you get.

0 favourites 0 retweets

In reply to @aperfect

@aperfect nana says there's a jazz festival in canary wharf this weekend

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Walk on the Wild Side is very funny

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In reply to @mmm_newcastle

@mmm_newcastle would you be able to stock Jardine's Cowboy Kettle Chili? I've only ever found it in hexham waitrose and can't afford the gas

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my Eternal Knee Rash has just started itching. I feel like a Pompeiian at the foot of a Vesuvius which has just started rumbling.

0 favourites 0 retweets

In reply to @badmachinery

@badmachinery I hope the new comic includes more irishisms, that was funny

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really wish 4od would give me the benefit of the doubt when skipping past ads; I'm stuck in a loop of the I Hate The Three Guy Show

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In reply to @aperfect

@aperfect no!

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yyyyeeeeeeeeeeeeeeessss! Winning a gold medal on Trials HD Hill Climb has pleased me more than my A Level and GCSEs combined. PRIORITIES!!

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In reply to @arowx

@arowxGames oh go on then, can I haveva password? Got to help local industry and all that...

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In reply to @arowx

@arowxGames ooh didn't see it, it was in my junk folder. Forget the email you just got

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In reply to @arowx

@arowxGames I can't download the exe, it gives a 404

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In reply to @aperfect

@aperfect mum just told me not to bother celebrating wins because newcastle aren't in a real league

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I have a flat! A ruddy expensive flat, though

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Sitting in maths aid, no customers, bored silly

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In reply to @mmm_newcastle

@mmm_newcastle my little brother says king naga chilli should never be eaten by anyone ever. He warned me at one point he was about to pop!

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Hopesolutely

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September

Why is there an Australian lady doing the public announcements on the metro?

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In reply to @chiefchimpanzee

@chiefchimpanzee I hope your Edinburgh show went better than that joke

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In reply to @chiefchimpanzee

@chiefchimpanzee it was actually quite clever, I was trying to think of something like the agency thought it was for the other newcastle...

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In reply to @aperfect

@aperfect innteellliiimoooooouuusseee

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arrgh, spelunky is so hard!

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This week's walk on the wild side was brilliant!

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Finally watched The Lives of Others, great film to watch on your own

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Saw an old lady with an eyepatch. She was parrrtially sighted.

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Ahhh radio 4 please stop picking books at bedtime which are all about people dying

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I can see the bt man fiddling with the exchange. Maybe my internet is getting activated now and not this morning like they claimed!

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New word - phtissitation: the realisation that the fruit you have been allowing to ripen for several days is completely tasteless

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this woman on the metro looked alright ten minutes ago, but she's *still* putting makeup on. Know when to stop, orange lady!

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aagh, why won't my heating turn on?

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Nyooooooo: the sound I made when the anonymous youtube link I clicked on turned out to be titled "Kick-boxing leg break"

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I am a mathematical god! Proved recursion with parameter substitution is primitive recursive all on my own, bet you couldn't do that.

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going for a walk along the Tyne. South Shields actually looks quite appealing from a distance. Must be a crazy sea mirage

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This sketchy pub is playing some really cool 60s lounge jazz. I think if I went in they'd ask what space age material my shoes are made from

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I like grabbing my big toe with all the little toes on my other foot. I feel like a monkey

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trying to buy some new disposable fountain pens and discovering office supply companies' ridiculous delivery fees

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Adventureland was like a good Garden State

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In reply to @kenfodder

@kenfodder except the link doesn't have a name separate from its destination, and the sets of URLs and files do not overlap

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my foppish urban haircut couldn't deal with the grim realities of Tynemouth; it had to go

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"this album is turbo sweet"

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At one point there were five people trying to work out how to issue me a smartcard and they still managed to spell my name wrong.

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Pate on toast has only made me hungrier. Stupid smooshed up animals.

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the milling on copella bottletops is painfully sharp

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Just walked round to the co-op to buy some meat for dinner and it's been ram-raided or something.

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God North Shields is rough. I saw someone get pulled over by the police, a hearse, and was stared down by an old lady crossing the road.

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There is a lady selling posh popcorn at stanhope farmers' market. That is past my limit for ridiculous posh food

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inadvertently used my fountain pen as a nose flute

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yuk, my flat is insect central at the moment

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Not only are this year's freshers taller than me, they're better looking too. I blame the labour government.

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at the "I think I can see food!" stage, or day 2, of opening this packet of biscuits

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just noticed that I get synaesthesia with moments from my life when I think maths

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October

Meena's curry sauces are perfect. There is no better curry sauce.

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if the turkmenbashi was still alive, he would put an i in team.

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peeled a national front sticker off the metro. Sat and waited til nobody was watching though, not sure why.

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why would google maps be smoother in firefox than chrome? Any ideas?

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In reply to @aperfect

@aperfect disaster! Did they steal any of your crisp wrappers?

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dead pigeon outside the nanotechnology lab. Maybe it had a... LITTLE accident?

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I think every ingredient in this bacon cheeseburger I'm making has gone off. We'll find out tomorrow!

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email from nana "RE: RICH GRANDSON". Rumours of my wealth have been greatly exaggerated.

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Not sure how that many snails managed to get on the *inside* of the wheelie bin

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In reply to @aperfect

@aperfect don't get the pre, get one of the shiny new android phones with a real camera and such

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the ending of Charlotte's Web happened onto my car

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Grey-haired lady with a nosering: it's repulsive and clearly interfering with your breathing. What's the deal?

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Bored bored bored bored. Does anyone need any maths explaining whatsoever? I've been here since 10am!

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the secret to lifelong happiness: hide bonus chocolate in your cupboards

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Does anyone want to be my walking buddy? Nothing strenuous, just the public footpaths of tyneside

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@dumbfirefly I have your background image on a t-shirt!

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Tried to make a tuna sandwich; accidentally made tomato soup

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How did I not notice the new series of The Thick Of It?

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Died on the 26th of October 2009 watching House of Cosbys

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In reply to @aperfect

@aperfect there's a spotify app as well, which I think your trendy laaaandan payscale can afford

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WHERE ARE THESE FLIES COMING FROM?

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In reply to @nilium

@nilium not sure about that, they're big fellas

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In reply to @peterrowlett

@peterrowlett I have lists too. Your maths one is very useful!

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In reply to @JanvierUK

@JSlayerUK Yes, really yes. Unless he works for My Daughter is Wrong Enterprises PLC or something.

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Pushchairs five abreast appeared round the corner. What was I meant to do? Your honour, the defence rests

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In reply to @JanvierUK

@JSlayerUK all the museums in London closed at 5pm and I thought of you

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November

Why are there so many French people in tynemouth today?

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new BOAT album!

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What are tynemouth's men wearing this season? Trousers tucked into socks. Chic!

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Mum: "if there could be a bonfire, I'd put Roger McGough on it"

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In reply to @peterrowlett

@peterrowlett what are you doing in newcastle? That's where I am!

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oh my lord that Pie Minister steak and stout pie was exactly what I needed

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ahh, tynemouth is a swing seat, might have to vote labour! I want my lib dem protest vote!

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In reply to @peterrowlett

@peterrowlett hate to be one of those people, but did you get my email? My boss (Bill Foster) would like to see you as well, if you've time.

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going to the lit phil on a reccy

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Went to the lit and Phil on a reccy. Maybe I'll join eventually, but not now

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Fort Christian has fallen to the Yawns..

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Enlightening chat with @peterrowlett about CBAs and outreach, but shouldn't've made him walk the length of the town with all his luggage

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In reply to @peterrowlett

@peterrowlett all the routes are scenic up here

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aaaah I am doing too many jobs my brain is melting meltinggggggggg

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haskell is nice for doing maths programming

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In reply to @aperfect

@aperfect you are a wrong

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In reply to @fatfieldfoodie

@fatfieldfoodie I said the same thing about the cutlery! Didn't like my ceasar salad there either

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In reply to @GreyAlien

@GreyAlien once you get the idea it's not that bad. I'm a way away from making a game yet though

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3d channel 4 doesn't look very 3d

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wow, free access to the cabinet magazine archive online for subscribers! That will occupy me for a long time

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trying to work out how to represent pregroups in haskell

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argh emusicsmas came too soon, I hadn't used all of last month's credits!

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Group structure of a Rubik's cube in a black box with a cat peeling its stickers off, C Perfect, B Tormey 2009

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In reply to @peterrowlett

@peterrowlett they're in the building next to mine. Will investigate, thanks. Not so sure it's more mathsy than engineeringy though

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tonight I have added all the papers I've ever read to @mendeley_com

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why do spiders like crawling up plugholes?

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In reply to @peterrowlett

@peterrowlett Green's Theorem! That is an excellent mug! So are they more mathsy now, or was that the extent of it?

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really not comfortable with paypal asking for a new security question and password during a transaction

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the ticket machine at the station "couldn't connect to the TOD server". What to do?

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Glasgow Subway: I banged my head on you; you are too small.

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Oh no, the grandparents have started Christmas shopping! Won't get a nice seat on the metro until January now.

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mary berry's caesar dressing tastes very sweet and not like caesar dressing, but I like it a lot.

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I offer a prize of a tasty cake to anyone who can show a correlation between any economic phenomenon and the appearance of the panpipe dudes

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In reply to @kenfodder

@kenfodder even powershell?

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In reply to @badmachinery

@badmachinery envirocat tote bag arrived today. Probably a rash purchase, but it is very nice and I will heed its message.

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left alone in a house full of chocolate treats which are all about to go off. There are only a few ways events can proceed; one is very fun.

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really not happy with raindrops falling on me while I'm driving through the tyne tunnel

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done a Ferrari again. Should've brought my umbrella and my coat, brought neither and now fearing getting off the metro

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In reply to @peterrowlett

@peterrowlett see the maths hall in the science museum, but you already know that. The names of some of the Napier's bones clones are ace!

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December

Keep forgetting I'm working with groups instead of pregroups and making things far too complicated

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In reply to @peterrowlett

@peterrowlett gosh you're busy!

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oh, the A History of Scotland that's on the iplayer at the moment is a second series! Fun!

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In reply to @badmachinery

@badmachinery what new solange album? it's not on amazon or spotify

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£3.50 for digitalriver to "keep a copy of my download of windows 7" in case I need it again. Not totally sure how that works.

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In reply to @badmachinery

@badmachinery oh. That one's good

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In reply to @badmachinery

@badmachinery of course; they are a treasure of humanity, just like the Vedas - http://www.textfiles.com/underconstruction/

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In reply to @peterrowlett

@peterrowlett could you remind me of the benefits of MathML wrt accessibility in e-assessment? I need to convince some lazy developers

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composed a haiku yesterday, forgot to tweet it, performed it in my dream last night, nobody paid attention IN MY OWN DREAM

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I did not know there was a moai in tynemouth

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Watching the world's keenest Labrador play catch on the beach. It's inspiring; it should be the warmup act for Barack Obama

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Previous Me was so much more talented than I am

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Christian's cooking Christmas crinkle cookie cakes!

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my front door was open all day!!!

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the smell of the ready-meal carbonara in the oven is filling me with disgust. It really doesn't look appetising, but there's nothing else!

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In reply to @JanvierUK

@JSlayerUK re itchy palm money: I've been trading in futures and derivatives of it and it all belongs to RBS now. sorry.

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aaaaaahh, installing haskell packages on windows is so difficult!

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longest game of Civ ever

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So have they cancelled my metro or what? I even got to the station five minutes early today, and no dice

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In reply to @MartinMagni

@Martinmagnusson no GoodBoy(x) and GoodGirl(y) predicates?

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Rrrrrrr rrrrrr rrrrrrr aaaaaaaa aaaaa aaaaa rrrrrrrrrr! Bad day

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I have cleared out Borders' maths section

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uploading 3gb of videos... GCSE to A-Level maths students, watch this space.

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In reply to @maanow

@maanow can't believe how long that minutemath took me

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just realised I did everything else on my to-do list but forgot to make lunch!

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In reply to @maanow

@maanow I did *not* notice that the triangles are right-angled! My solution is so much more complicated.

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saw some hare krishna chuggers on northumberland street wearing berghauses. Fairly sure that's not allowed

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what on earth are middlesbrough doing at 11th in the championship?

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christian's cooking christmas crinkle cookie cakes encore

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I just want to sleep in until the today programme finishes!

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Today I'm carrying my home-baked cookies in to work in a tote bag I bought off an artist. Come and get me, boys.

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70 RSJ maths videos uploaded, titled and described! Hooray!

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Ah! There is my snow!

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Charles Kennedy looks like ginger hitler

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In reply to @MarcusduSautoy

@MarcusduSautoy christmas twitter challenge - can you document the untangling of your christmas lights as a series of reidemeister moves?

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could the four-colour theorem be applied to a many-santas scenario so no naughty child up late on christmas eve sees more than one st nick?

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tried to be clever making gift tags; instead was disastrously un-so

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Got 99 problems but lunch ain't one

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In reply to @peterrowlett

@peterrowlett asymptote is a very nice package for getting graphics into latex, though a bit fiddly to set up on windows at first

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2010

January

In reply to @AndyOvine

@AndyOvine that picture is brilliant!

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Yeah I'm pretty good at maths

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considering reusing my 1kg dairy milk wrapper as a document wallet

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getting sick of top gear's weekly "you couldn't make it up!" moment

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wheeee I love Michel Legrand's Paris Jazz Piano!

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Maths aid is eerily quiet today

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Moliere the film is some Grade A trash but I loves it

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In reply to @aperfect

@aperfect not where YOU are. That's maaaaaaaaaaaths!

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" lxgr'l'hyr=lxrlyr, or gr'l'h=rl. " Yep, that's what I do all day. No, I'm not a Klingon.

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In reply to @JanvierUK

@JSlayerUK report it to the council and then shake with impotent rage.

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FINISHED RIMLINGER!!!!!!!!!!

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In reply to @aperfect

@aperfect posh new bbc recordings tickets site - http://tinyurl.com/yengu5y

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the human condition: it is really difficult to look in someone else's utensils drawer and find the garlic crusher

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oh dear, I think I want to switch to analysis. How can I do this without my supervisor noticing?

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used my two free hours this morning to clean the house; now I'm too knackered to do anything else

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wahey! I'm finally on the first page of google for "christian perfect"! take that, bible fans!

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I am going loco trying to conserve kinetic energy in a model of a 2d elastic collision! Aaaaaaah!

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complaining about a problem immediately leads to its solution - I had written the kinetic energy formula down wrong

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there's this weird foam floating down the street...

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I wish the uniqlock was the only thing in the world

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Made enchiladas. Forgot to buy sour cream. Food-too-hot haiku.

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Not happy about riding a scotrail train in Northumberland. Checked the back for a livestock carriage when I got off.

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yep, pretty bored. Where are all the students?

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In reply to @Gelada

@Gelada what open source computer assessment software would you prefer? I'm in a similar situation

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today is like my anti-birthday. So far I've sprained my wrist and my car battery has died. What else could happen?

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oh wow, mathjax is exactly what we need! http://tinyurl.com/yfzprsx

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Going to see the ny met opera live broadcast at tyneside cinema.

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crikey, sunderland really are bad at football, aren't they?

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might start one of those harsh photoblogs, called "photos of groups of mathematicians". We are really not photogenic.

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The man opposite me looks like a business man but is scrawling on a pad of paper like a complete nutso. Maybe he's just trying out a new pen

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Mr accordion busker man, a tip: do not busk with your accordion within earshot of the other accordion busker man

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the milling on copella bottle lids is quite sharp. #middleclassstruggle

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In reply to @aperfect

@aperfect YES

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there are not many logician-comedians: "Kleeneliness is next to Gödeliness"

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In reply to @aperfect

@aperfect there is also wahaca

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In reply to @peterrowlett

@peterrowlett must confess I saw it on Wikipedia and couldn't resist tweeting it. Got a few new followers as a result!

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In reply to @jefferickson

@jefferickson could you explain that one please? Are 'Pillsbury' topoi an actual thing or did you put that in to make the joke work?

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making a directed semantic graph of the topics dealt with at maths-aid because I take my work too seriously

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I've had a pretty fun night making this http://tinyurl.com/yahsvgn

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I will call my first son Genre, pronounced "Henry". Thanks, TV!

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SENOR DEMANDS NACHOS!!!

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In reply to @standupmaths

@standupmaths I'd say he looks beside himself with anger but I'm not sure how to tell for sure

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"Has Elvis left the building? Location of rockstars in non-Euclidean geometries, C Perfect 2010" (inspired by @standupmaths)

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I just saw two foxes run across the metro track! Real proper foxes with bushy fox tails and red fox hair and everything!

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In reply to @kenfodder

@kenfodder happy birthday!

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just realised I've been reading the wrong paper for the past week! No wonder it didn't say anything like what it was supposed to.

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In reply to @beefok

@beefok if you need any help with diff eqs, I'm around

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In reply to @JanvierUK

@JSlayerUK you might be low on electrolytes, or salt.

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Somebody come to north shields tesco and stop me buying all the posh food please

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when I picked this beef steak up I started salivating like a dog. Beef: better than bacon?

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never try to explain cantor's diagonalisation argument to your software engineer father

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From the looks one the faces of the dudes on the metro, I assumed nufc had lost. I will never understand the toon army

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This jazz solo is a bit too real for me. I wonder if the other people on the metro can tell that my mind is being blown to pieces

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In reply to @JanvierUK

@JSlayerUK that backslash is to get the LaTeX symbol for pi.

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In reply to @standupmaths

@standupmaths what age range are these kits aimed at?

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oh crikey! that is a proper blizzard out there! what's going on?

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February

just peeled a lot of my finger off

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reading the worst possible explanation of what category theory is. My enthusiasm is waning

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In reply to @aperfect

@aperfect fungible micro-products, integer-derived plus-selling. Automatic consensus?

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oh lordy I had even forgotten that the TeX for 'times' is... \times !

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In reply to @peterrowlett

@peterrowlett that's v interesting! I'm 'disabled' due to asperger's. I'm sure once the new diagnosed cohort go to uni, that % will increase

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I've started a blog to write up notes about my research (and practice my LaTeX skills): http://bit.ly/9whxl7

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new metric of indie hipness: proportion of shazam tagging attempts that fail

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Fell victim to pernicious combinatorics in Boots. If I'd picked up a snack and another six-pack of tissues, it would've cost me a pound less

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In reply to @rockhyrax

@rockhyrax does it need radiotherapy?

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Mr Efficient is on the metro. He folds his paper in half twice, neatly. He puts it in his satchel in one movement. He wears a scarf.

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In reply to @Bishnavitch

@Bishnavitch sebastien tellier

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Poserphones: noise-cancelling headphones that play the trendy music of the day outwards while you listen to Leona Lewis in total secrecy

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Had breakfast at the serpentine bar and kitchen. Very nice!

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In reply to @JanvierUK

@JSlayerUK oh wow, that story has it all!

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doodle #1 http://brizzly.com/pic/1E5K

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A thousand curses on Springer-Verlag and their ridiculous fees for downloadable papers!

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yep, walked the wrong way down an escalator.

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In reply to @brittneybean

@brittneybean who collects subscription fees?

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aha, a breakthrough! thesis not ruined after all!

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In reply to @standupmaths

@standupmaths say what you like about flog it and its ilk but they're the only format left not to have a "celebrity" version

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In reply to @standupmaths

@standupmaths clearly I don't watch enough daytime telly. I suppose there's been a celebrity edition of Jeremy Kyle as well?

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New mathem-o-blog post: Serre's Graphs and Trees (http://bit.ly/caEnl4)

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PhD Quest! Your command?
>write paper.
I'm sorry, you don't understand that
>read paper.
>write paper.
I'm sorry, you don't understand that!

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In reply to @kenfodder

@kenfodder "snail mail" always makes me think of Live 'n' Kicking on Saturday mornings

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feeling very autistic today. threw a wobbly at the clingfilm because it split down the middle, then walked around the flat humming for a bit

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why can't food wait until it's ready to eat before it smells so tasty?

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bonza! found a cross country train going to Newcastle that's completely empty. so long, half term kids!

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In reply to @aperfect

@aperfect nice! I might use that for the outreach website.

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Mr Serious is on the metro. He wears a black coat with a reassuring texture. He puts on his black gloves. He likes how warm they are.

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In reply to @aperfect

@aperfect HAHAHAHAHAHAHAHAHA oh my god, a box!

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In reply to @standupmaths

@standupmaths wot no reynolds number joke?

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crikey, 25% of this paper is the bibliography. Five pages!

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aaaaaaaaaaaaaaaaaaaaaaah I can see the fnords aaaaaaaaaaaaaaaaaaaaaa

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sign me up to www.girlsinwelliesteasingtheirdogwithabunchofseaweedonthebeach.com please

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In reply to @aperfect

@aperfect you are your father's son

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thank you, spotty youth in john Lewis, for finding me chopsticks just before closing time

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In reply to @kenfodder

@kenfodder so it *is* a G!

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no way have I caught yet another cold. Have I offended my immune system?

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I don't like listening to live recordings on my headphones because they have a reverb as if they're being played out loud

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bought two boxes of tissues but left them on the metro. now there'll be a bomb scare *and* I'm still snotty!

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In reply to @aperfect

@aperfect yep, that link doesn't work for me

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In reply to @brittneybean

@brittneybean because it's for kids and kids like colourful things, viz. the OLPC

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chalking up some future maths in OneNote. Draw with pen, scroll with finger, clever handwriting recognition. It's the way of the future!

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maybe burger king exploded? there are alarms and Northumberland street smells of beef

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made sure not to forget my shopping bag this time; forgot my backpack instead

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next time I need to fry an egg I will take it to the new bit of Eldon Square where it is hot enough for that to happen

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In reply to @JanvierUK

@JSlayerUK you live in the wrong bit of the country!

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In reply to @badmachinery

@badmachinery BRAVO! I will pass this off as my own to the rest of the maths department on Monday

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In reply to @peterrowlett

@peterrowlett @Gelada interesting podcast this week! I do find most episodes quite whispery though, could you put your best radio voice on?

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In reply to @GreyAlien

@GreyAlien how do they stop? feet?

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@dumbfirefly I've seen the same asked about agrarian society. not in glossy fashion magazines, though

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Good tutoring today, student much brighter than expected. She sat module 3 after only three weeks, got an E. What's going on in schools?

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New mathem-o-blog post: Computable Groups (http://cli.gs/GLTED)

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just saw some class war happening. policeman stopped a guy just for wearing Kappa

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In reply to @standupmaths

@standupmaths I'm not too fond of that proof because shearing doesn't happen in real life, so it's not convincing without a bit more thought

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In reply to @Gelada

@Gelada as a wireframe, yes. It's not too obvious the enclosed area stays the same though. Just an intuition thing, I suppose.

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defined a \fgoagog command in LaTeX. Having a good day.

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In reply to @standupmaths

@standupmaths that book is following in the fine tradition of Byrne's translation of Euclid's elements: http://bit.ly/9kz7v6

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In reply to @standupmaths

@standupmaths that day could be the 1st of May if you order the taschen reprint

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stuck in a (maths -> facebook -> maths -> twitter -> maths -> food) loop

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In reply to @JanvierUK

@JSlayerUK oh my God that is brilliant! that news is like a late Christmas present from Schaden Claus

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In reply to @alexbellos

@alexbellos I will do that because I've just seen the American title and it is just as bad a pun as the British one

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did too many things today. My mind is a blank and I am unable to do anything until bedtime.

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this is a very interesting paper http://bit.ly/aH0s3z

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In reply to @aperfect

@aperfect forgot about that! He should be your mascot

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typing blue plaque locations into google maps, whose search is entirely failing me. Fairly sure I'm looking at nelson street, google!

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In reply to @mathpunk

@mathpunk I thought you had that game wrong in the interview, but thought saying so on twitter would be too snarky. Makes more sense now!

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I've put the locations of all the blue plaques in Newcastle on google maps: http://bit.ly/brW9oP . I intend to photograph them all

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waaaayyyyy canada! I expect the Queen to deliver a message of congratulation tomorrow

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March

Why do Southern Electric need a minibus? New biofuel initiative?

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some ill dog has been painting the pavements of tynemouth a rich brown

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In reply to @JanvierUK

@JSlayerUK religious people are quite keen on them

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In reply to @JanvierUK

@JSlayerUK religious people vote. I really think that's the top and bottom of it.

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In reply to @alexbellos

@alexbellos free book to the first person without any tweets to RT you?

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In reply to @Gelada

@Gelada it has always annoyed me that the JUM has no abstracts. The maths might be unpublishable, but I might want to cite it all the same!

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New mathem-o-blog post: Groups and the Grzegorczyk Hierarchy (http://bit.ly/bFslED)

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In reply to @GreyAlien

@GreyAlien The Pru deal and the fact the tories aren't going to win the election. The Today programme told me so, so it must be true

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In reply to @alexbellos

@alexbellos another vote for John Conway, didn't think about it for too long though

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In reply to @JanvierUK

@JSlayerUK and can you believe some people press the lift button more than once even though it doesn't help? I bet that winds you right up!

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Micro Chips! I am twelve again

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In reply to @standupmaths

@standupmaths I'm sure there's a niche for a channel with 37-minute programmes so it's always out of phase with other channels' ad breaks

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In reply to @peterrowlett

@peterrowlett I can see it

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wow, £4.99 for a thermos bottle but £34.99 if I want hannah montana on it. I think I can tell what my parenting style will be.

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Swype is a very nice alternative keyboard for android. Very fast!

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Newcastle have a goal difference of 40. That is insane.

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still haven't forgiven the person who renamed Toppers to Frosted Wheats

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In reply to @aperfect

@aperfect nice picture

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Very good article - RT @Math_Bits: What were Einstein and Gödel talking about? http://bit.ly/cZcZV2

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wahey, got JMEs working in SCORM! Took me a day, after waiting since November for the specs.

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some element of what I ate today has poisoned me

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going to the toilet with a feeling of trepidation is no way to live

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new f1 season, IPL starting, and a new cabinet magazine! A relatively good time to be ill, really.

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wow, I've lost almost a stone since I (1) started taking the stairs instead of the lift and (2) caught gastroenteritis

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hah! West Gate Community College is now called 'Excelsior Academy'! Was Mr Wakelam involved?

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In reply to @mathematicsprof

.@mathematicsprof forget all that, I'm preparing for one big blow-out megaparty in Graham's Year

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In reply to @Gelada

@Gelada I'm sure we can find a home for it at the Newcastle Uni maths department

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In reply to @Gelada

@Gelada Maybe get in touch with our MathSoc - http://bit.ly/cinjgP

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In reply to @brittneybean

@brittneybean I imagine Florida is full of those now

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Dead wasp on the pavement.that's wrong in a couple of ways

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In reply to @aperfect

@aperfect what they mean is he didn't attack a WPC

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In reply to @JanvierUK

@JSlayerUK stage left or your left? Ken might be offended!

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ah, there it is! http://bit.ly/9PyClM "dangerous knowledge" - superb documentary about cantor and infinity and so on

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what do you do when your phone has failed three times to send a message saying, "never mind"?

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el Michels Affair sounds far too much like Menahen Street Band

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making all kinds of noises about these burgers

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In reply to @aperfect

@aperfect more to the point, who even remembers domain names any more?

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just noticed that gazza is holding a bottle of broon in the mural at monument metro. How unfortunate.

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oh no, now the bad juju is messing with the TV signal! This must be killing me somehow

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Dreamt last night that I had a new kitchen from john lewis. It was beautiful!

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The Ball With the Scary Noise In It is now an un-toy according to the dog. He walked right over it and refuses to acknowledge its existence

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In reply to @decaf_unicorn

@fumbleweeds hello, who are you?

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In reply to @decaf_unicorn

@fumbleweeds he's married! Crikey! Nice to meet you, and so on. Thanks re. feeds

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In reply to @mathpunk

@mathpunk at least you can say it's not cooperating today, and not at various moments sprinkled throughout history

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it's only 9am and I've already heard the phrase "hot and cold running chicks" twice

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I must find a way to become a member of the Mathematical Society of Traffic Flow

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In reply to @brittneybean

@brittneybean that sounds like the kind of event rolling news channels turn up to

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the jazz soundtrack to my life has returned! Today will go pleasingly, hep cats

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oh good god, "lizzie and sarah" is absolutely the most harrowing comedy programme I have ever seen. My perfect day is ruined already!

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haven't heard of most of them, oh dear! RT @nulibsage: Most influential British women in history of science http://bit.ly/d3iWLt

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In reply to @standupmaths

@standupmaths how do I know you're not the person who stole Matt's phone and the password hasn't in fact been changed?

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In reply to @brittneybean

@brittneybean Nokia bh-501 - http://bit.ly/b227wa I like them a lot but I am not an audiophile. They work with every device I've tried.

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In reply to @divbyzero

@divbyzero the princeton companion to mathematics has a very good (and long) article about maths and music, fi you can get hold of a copy

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Things I am tired of seeing in "maths art": the fibonacci series, the golden ratio, mobius strips, klein bottles. Think of something new!

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In reply to @aperfect

@aperfect which makes it not even maths

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In reply to @Gelada

@Gelada "there are some animations here" in the caption for the polytope image doesn't have a link attached - shouldn't there be one?

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There are many be-flat-capped men pacing around the station. Something's up, but what?

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In reply to @aperfect

@aperfect yeah that's my new vampire weekend tribute band

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In reply to @Gelada

@Gelada very good article, I should have said as well!

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In reply to @badmachinery

@badmachinery milliners make hats

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Had loads of fun making origami prisms and pyramids to help my tutee with geometry

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In reply to @badmachinery

@badmachinery that kind of joke is why you are the UK's top professional web cartoonist. All is forgiven!

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I've been trying all day to procrastinate by chatting and nobody has co-operated!

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@nulibsage did rather better on that one thanks. No, I didn't know about Elizabeth Garrett Anderson, and that's what made me remark

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Fog is optical communism

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In reply to @standupmaths

@standupmaths I'm sure the barbican is ripe for some topology or graph theory puzzles: pick a random visible walkway then try to get there.

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YES PLEASE NEXUS please do extend the metro to washington!

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In reply to @rockhyrax

@rockhyrax turnitin?

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In reply to @brittneybean

@brittneybean because the only content anyone would conceivably pay for is editorial and investigative pieces - breaking news is everywhere

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In reply to @JanvierUK

@JSlayerUK Papal infallibility only applies to ex cathedra statements, ie ones where he specifically says "This is for reals yo"

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In reply to @JanvierUK

@JSlayerUK PS 'nonce' is a horrible word

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In reply to @trackinthebox

@trackinthebox don't share your taste most of the time, but I really like Thomas Tantrum in that list.

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In reply to @decaf_unicorn

@fumbleweeds does it give the same results for everybody?

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was forcing myself to keep working and do a 9 to 5, until I realised I started at 7. Free, free, finally free!

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why do girls in burger places always give me a bigger burger than the one I ordered?

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In reply to @nilium

@nilium feel sorry about what?

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Seagulls in clear morning light giving me flashbacks of the bbc four ident

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Mathsy arts beyond the usual fibonacci rubbish (after the first 10 or so, at least) - really cool stuff http://bit.ly/cobH4F

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In reply to @JanvierUK

@JSlayerUK I am, but I don't think where I am is interesting information

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"Eggs are... just a brainwave, aren't they?" - Mum

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April

In reply to @NewcastleCC

@NewcastleCC was there ever any truth in that civic centre rabbits story?

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My nana looks like Little Miss Stalin in that coat

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In reply to @NewcastleCC

@NewcastleCC thanks, all my colleagues in the maths department have been inviting me to the facebook group. You'd think they'd know better!

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Just realized I have a philosophical objection to -54 being a number

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I've started a public collection of interesting maths finds on Mendeley - http://bit.ly/9o2a6Q

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In reply to @alexbellos

@alexbellos I bought my non-mathematician mum your book for her birthday and she says it is very good and accessible. Well done!

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I have joined the dog in being scared of the washing machine

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New mathem-o-blog post: Interesting papers collection (http://bit.ly/baPzeD)

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the Tory Action Squad has been deployed to tynemouth metro station. Will they start a social enterprise to pick up the discarded leaflets?

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In reply to @standupmaths

@standupmaths mathematicians who live on-campus make up a non-commutative group

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the BBC site invites me to "watch Jeremy Vine's intro" or "start swinging" - I always knew he looked the type

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my mathem-o-relative (Hazel Perfect) has an Erdos number of 2! Now I just need to track her down and co-author a paper and all will be super

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gosh it's warm!

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In reply to @mathpunk

@mathpunk what would that involve?

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In reply to @mathpunk

@mathpunk so you'd want a git repository with a nice frontend that does word/latex/etc. ?

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so domino's hot pizzas are actually hot now. At least they don't give me the squirties any more

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Saw mr lomas on the street. He didn't recognise me. Disappointed.

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In reply to @brittneybean

@brittneybean become one of us! all you have to do is answer 20 inane questions about pub etiquette and swear allegiance to an old german

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In reply to @aperfect

@aperfect ahhhh wowwww that looks good!

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In reply to @aperfect

@aperfect went well, told some jokes

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how is Morning OJ meant to cohabit with Morning Toothbrushing?

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Time to use the services of Mr Shavington-Smyth; my chin wants to enjoy the sunny weather.

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oh gosh this looks useful: MathOnline — a compendium of free online mathematical references http://bit.ly/czEybK

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In reply to @mendeley_com

@mendeley_com does there exist an RSS feed of all my shared collections?

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having major rotation/reflection issues with printing this PDF. I want to make an A5 booklet, but learn not from my mistakes each printing.

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this rain smells lovely! is the volcano responsible? Full of volcanicity! http://bit.ly/c3HEwQ

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I think the old man two doors up fancies me

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In reply to @kenfodder

@kenfodder I imagine you writing these tweets in a room occupied by yourself and one other person.

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must stop watching music videos of pretty singers on youtube. Must write maths instead. I think that's how I want my life to be, I think.

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Maths Improv sessions on google wave: you ask questions, I write maths. Does that sound fun?

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In reply to @rockhyrax

@rockhyrax tweed and elbow pads

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In reply to @peterrowlett

@peterrowlett I wish I could attend that first one, I've been trying to use tablet pcs in teaching for years

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oh yes, check out the titles available on the co-op registration form: http://bit.ly/9CImXr

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In reply to @brittneybean

@brittneybean Are you even kidding? That is an awful name for one of the best things about childhood

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In reply to @rockhyrax

@rockhyrax woolly jumpers seem to be the unisex uniform of choice for mathematicians. Think Boden.

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In reply to @rockhyrax

@rockhyrax you are going to classier maths conferences than I am. Maybe I will raise the tone next time round with a zoot suit.

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In reply to @rockhyrax

@rockhyrax wearing a zoot suit is one of those ambitions I will never dare fulfil. On reflection, no it would not raise the tone.

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just pulled out a snot with the consistency of marmalade.

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I can see the fnords and they are in EDI's code! It displays '3*3' as '33'!! INCONCEIVABLE!

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I hereby resign my membership of the set of people who can make a caesar salad without completely messing it up

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I wonder how the pilot of the Enola Gay felt about becoming the killingest person ever

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Kant: "what is beauty?" --- cp: "www.uniqlock.jp"

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wow a real turing machine - http://bit.ly/97yICp
but the google ads were "toys for autistic toddlers"??

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In reply to @Htbaa

@Htbaa works for me. Is this pursuant to the thing about a modules listing on the bb.com forums?

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In reply to @JanvierUK

@JSlayerUK it is only newspaper tycoons who do that. There are plenty of people in the world for you!

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had a dream I went back to school and in assembly they did a big song and dance number about the times rich list. What was that bout?

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I know dockers make 36 leg trousers because I own two pairs. So why does their site not go beyond 32L?

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In reply to @peterrowlett

@peterrowlett that's exactly the kind of title that gets me funny looks when I explain what I do to non-mathematicians

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In reply to @AndyOvine

@AndyOvine sounds like you had a nice day

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In reply to @MathJax

@MathJax I'm using MathJax and the badge on http://bit.ly/9whxl7

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In reply to @MathJax

@MathJax cool! I'm making an online exam system using mathjax for newcastle uni as well, but that isn't ready yet. WP was v easy to set up.

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In reply to @badmachinery

@badmachinery try "renard"

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I think I might buy some paint

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left-handed smileys are the devil's work. #selfhatingsinistromanualist

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In reply to @trackinthebox

@trackinthebox I'm not sure if "Boots" by Nancy Sinatra counts, because it is a classy tune

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In reply to @aperfect

@aperfect you're blogging it wrong

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Just gave my seat to an old lady. Forgot that I'm going the long way round the metro line. Hope she gets off soon

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hooray, finally! RT @MendeleySupport: ...Lots of little tweaks, but best of all, a new search feature for our catalog: http://bit.ly/d8BaG0

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In reply to @JanvierUK

@JSlayerUK I have the same thing but with rocket cars. With me I think it's that I have no presence of mind, so they make me stop and look.

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super! my tutee lost the memory stick with all her coursework on it, so I don't have to tutor her today!

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square spaghetti is confusing me :(

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@nulibsage I don't understand the e-shelf e-books thing. When it says the library will be charged for a loan, will that be passed on to me?

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convinced Bill I needed to rewrite most of our code. Not sure how he'll react when I tell him we only need to change like two things

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Borrowed a Sony Reader from the library. It is the future, as seen from the 1980s.

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May

Watching armida at the tyneside with my nana. I've never been in a room with so many old people. I can't stand Renee Fleming either!

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Well, the ballet bit was good. Only another hour and a half to go!

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This blackbird is breaking out the freshest beats to find a mate

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In reply to @divbyzero

@divbyzero graphviz is pretty easy to get into.

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In reply to @rockhyrax

@rockhyrax that seems to be what they've defined it to be: http://bit.ly/9JQvDk

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In reply to @rockhyrax

@rockhyrax actually, wikipedia is more definitive in re the definition: http://bit.ly/biZb0v

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yep so I'm drawing deep-sea cowboys and it is like the best thing I've thought of this year

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Yep, these new trousers are pretty special

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In reply to @kenfodder

@kenfodder truth.

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In reply to @kenfodder

@kenfodder pate is addictive

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In reply to @brittneybean

@brittneybean it looks like the london skyline sticker from www.hu2.com , but it's slightly different. I wonder where they got it?

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In reply to @princesszelda

@princesszelda you're getting less picky, yesterday there were like three other criteria. #randomtwitterheckle

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Fat flute man has upgraded to a clarinet, and is playing a topical tune - "I can see clearly now the rain has gone"

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Is fat flute man's clarinet purchase a green shoot if recovery? Is the recession over? Should I vote Labour tomorrow after all?

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In reply to @ColinTheMathmo

@ColinTheMathmo I'm going to the IMA thing and I've registered for mathsjam, but £150 is a bit much - will there be any help for students?

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In reply to @aperfect

@aperfect that is the single cleverest thing I have seen today, and I'm in the maths department

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heading for a third consecutive weekend spent visiting Alnwick

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In reply to @JanvierUK

@JSlayerUK tl;dr

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there's a leak in the tyne tunnel.. oh goooood, the tories are ruining Britain already!

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my mathem-o-blog is now at http://checkmyworking.com

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to those interested: have a look at my clever web maths exam thing at http://is.gd/c0csr (still in development)

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In reply to @quarklet

@quarklet ah yes, so I do. Thanks!

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too many Toppers, not enough milk. #stupidsunday

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today's Bad Machinery is genius

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Sat next to a tiny woman on a small bench. Too early for my brain to cope. Feel like Gulliver

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Ok, one person taking their hamster on the metro is odd, but two is a pattern. What's up?

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In reply to @rockhyrax

@rockhyrax do such things happen? Does the Big Lottery Fund pay for a massive wheel they can all run in?

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in the Brave New Tory Future, I might take up swearing

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Opening a sweepstakes on first tory outrage. My bet - disbandment of guide dogs for the blind, national service for all pet dogs instead.

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didn't plan the run-up to exam season well; now eating five meals a day to catch up. My role-model is "Hunter" from 90s gladiators.

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the SAgE survey has an "agree/disagree/etc" section with a final question where I can make up my own statement to agree with. "I like dogs"?

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In reply to @theyellowstereo

@theyellowstereo just in time for my emusic subscription renewing! I like the new post layout, too

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I bet leather elbow patches would give me a sufficient look of authority to disperse these King's students crowding the platform. Oh well.

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is anyone going to the Late Shows?

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In reply to @Bishnavitch

@Bishnavitch to roots and wings? What's the plan, I couldn't work out from facebook

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In reply to @JanvierUK

@JSlayerUK send it to cp

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In reply to @Gelada

@Gelada this mathematician doesn't know it happened!

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The clockword puzzlers are on the metro. They have matching pens and spectacles. Neither one has solved number 11 ('emblem')

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In reply to @stewartandco

@stewartandco how much are the BBQs? I've moved away from jesmond but there's no good butcher here so might come back on a sunny day

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New mathem-o-blog post: The computability of a fgoagog (intro) (http://bit.ly/bt49bX)

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why does Lui's only start serving breakfast at 9am? I'm hungry now and I need to be in town by 9! A posh bacon roll would have done nicely

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"New Labour isn't new any more. What I'm interested in is next Labour. Blairites, Brownites, that's past" - David Miliband is next grammar

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In reply to @MathJax

@MathJax I can't get \nmid to work in beta 2. It's in AMSsymbols.js, but using it gives an error

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In reply to @rockhyrax

@rockhyrax maybe it was an old bee, and it kept forgetting what it came in for. Put out a thimbleful of horlicks and see if it takes a sip

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maths sock! http://is.gd/cbz2B

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today I have eaten only tomato soup, coca cola, and pepperoni pizza. It's the worst my mouth has ever felt.

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thanks to google there are no more neologisms. Well, "increasative" hasn't been used in any of my citations, so I can coin it in this paper

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Whoops, stopped in the middle of tesco to prove a lemma. Not sure how long I was stood there, but it seems to have stopped raining.

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In reply to @peterrowlett

@peterrowlett fibonacci satire! http://is.gd/cd0vr

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In reply to @brittneybean

@brittneybean they probably don't sell enough ads to do precise targeting yet

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In reply to @JanvierUK

@JSlayerUK a = bc + r ; b = cd + s, etc. etc. etc.

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In reply to @MathJax

@MathJax no I don't, because I'm stupid. Thanks!

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In reply to @rockhyrax

@rockhyrax I find it satisfying when wild animals appear more than once. It's like they're real things and not just anonymous automata

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In reply to @peterrowlett

@peterrowlett it was ok. I wasn't really there long enough to get the most out of it. Met a few people, but not sure I'll go next year

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In reply to @Bishnavitch

@Bishnavitch generic skater tweet day?

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Three minutes and counting since my code started computing the next prime after 7. Don't worry, I know what I'm doing.

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In reply to @rockhyrax

@rockhyrax I'm building all computable functions up from three primitives - zero, successor, projection. Working towards http://is.gd/cgtWv

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Advanced selection methods will produce most virile being in universe: http://is.gd/cguew . We're all (going to be) screwed!

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In reply to @standupmaths

@standupmaths I'm laughing but it is a despairing laugh. That's just awful.

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This woman has the biggest possible nose. A caricaturist would draw it very small because going bigger just wouldn't look any different

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In reply to @rockhyrax

@rockhyrax it did, but I haven't tried the one after that yet. I might cheat a bit just so I can get the first hundred primes before I die

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In reply to @rockhyrax

@rockhyrax I need to encode lists using Godel numbers, which relies on prime factorisations.

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yowza, the hot stuff chilli company weren't joking! Trying to think of ways to go to the toilet without touching my winkle now.

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In reply to @princesszelda

@princesszelda why are you thinking about make up at six in the morning?

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15,000 proverbs about women from around the world: http://is.gd/ciJse . Some are really pleasant, others are rather mean

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At the RHS gardens near harrogate, wearing a Panama hat and deciding to get an allotment. I'm like Benjamin Button with lifestyle choices

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In reply to @GreyAlien

@GreyAlien lots of chiasmus in your tweets lately. Appreciated!

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In gbk!!!!!

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went to a different country today - Yorkshire. Feel inadequate and provincial now

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cleaned my patio very thoroughly and swept all the old leaves away, and now my neighbour's just thrown their clippings over the wall. Poo.

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In reply to @alexbellos

@alexbellos so jealous! It is my life's ambition to own one, and they're only getting rarer

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In reply to @JanvierUK

@JSlayerUK well, I never had MMR. Is that anecdotal enough to persuade you?

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my new can opener is magic. I don't like having paranormal kitchen utensils. It opened a can and I don't know how it did it and I'm scared.

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In reply to @rockhyrax

@rockhyrax aww, I could've got a Zuul reference in, couldn't I? Phooey!

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just found out I bought two 3-litre bottles of Summer Fruits squash instead of apple and blackcurrant because I'm colourblind. Might die.

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In reply to @alexbellos

@alexbellos extremely long metafilter thread about your Tuesday boy article: http://bit.ly/aAyvl7

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In reply to @divbyzero

@divbyzero so you have to be at the right place at the right time for the Klein bottle opener to work?

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In reply to @NCLSusCampus

@nususteam how are the recycling percentages worked out?

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In reply to @Gelada

@Gelada it's more like maths gives a very satisfying definition of truth

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In reply to @Gelada

@Gelada well, it's better than "feely" truth. The idea that you can say "I know this fact, so what else do I know as a consequence"? is good

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In reply to @rockhyrax

@rockhyrax so what is the deal with hyraces?

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In reply to @peterrowlett

@peterrowlett have a play about with xThink Calculator: http://bit.ly/cfkeui . Windows 7 does maths input in Word as well if you've got it.

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June

My flat has eccentric light fittings. Who knows where to get a lightbulb that looks like an onion with Marge Simpson's hairdo? It's dark :(

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In reply to @rockhyrax

@rockhyrax sleep in on leap days? If there's an extra day, one should be able to waive the right to use it.

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exam runtime is now under 2000 lines! Hooray for simple code! Boo to whatever the other guy was trying to do!

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In reply to @brittneybean

@brittneybean so I looked up the paper that's based on, and I thought "their maths is very bad", and then I saw it was written by economists

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it's possible that Janelle Monae is the best woman. Initial assessments point towards yes http://is.gd/cA0mp

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In reply to @JanvierUK

@JSlayerUK does it count as part of the Palace?

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In reply to @JanvierUK

@JSlayerUK whoops, that was what I was going to have tonight. Maybe I'm a bit depressed though

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In reply to @JanvierUK

@JSlayerUK I agree 120%. The extra 20% is because Alice Lowe has joined the cast and she is so nice

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I have learned tonight: proper cajun seasoning is in no way a substitute for fajita spices; old el paso guacamole tastes like late trains

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In reply to @rockhyrax

@rockhyrax trains that arrive late - disappointing, but just what you expect, really

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In reply to @standupmaths

@standupmaths sudoku *is* the 'more than' puzzle - it used to be all crosswords

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In reply to @aperfect

@aperfect that logo is very bad, and what they do to it further down the page is worse

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who has Red Dead Redemption for the xbox? This internet ain't big enough for all of us, let's have a shootout tonight.

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In reply to @rb_47

@richieb85 my gamertag is ChristianP, I will be playing online later

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the thing that EDI have spent two years not knowing how to do I have just done in 2 hours! MY MIND IS EXPLODING DUE TO TOO MUCH GENIUS

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In reply to @rockhyrax

@rockhyrax EDI are the company up in Scotland we're working with, making online maths exams using SCORM. I've made randomised questions work

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In reply to @rockhyrax

@rockhyrax we don't even get round people looking at the answers in the page source! The plan is to have locked-down PCs for real exams.

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In reply to @rockhyrax

@rockhyrax no, C/Basic-like syntax. That was the other clever thing I did earlier in the year! It renders as latex though, through mathjax

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mathematicians: how do you think one should LaTeX an integer times a fraction? 3 \times \frac{1}{2}, or, 3(\frac{1}{2}), or what?

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In reply to @rockhyrax

@rockhyrax still didn't understand the hyrax love, but now remember koalas have same effect on me. Might go and find my Koala Kate cassette

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In reply to @rockhyrax

@rockhyrax this http://is.gd/cGcFH (unhelpful link). My dad brought it back fro Oz when I was tiny. It was my favourite cassette!

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In reply to @badmachinery

@badmachinery the whole time this story's been on I didn't realise "good boy" could refer to a dog! You've made this maths phd feel v.stupid

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In reply to @rockhyrax

@rockhyrax I can't in good faith join your group, can't see the appeal of hyraces, esp. compared to koalas. Also I can't write on your wall?

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In reply to @brittneybean

@brittneybean @aperfect I await the arrival of the first hands-free video call kit

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In reply to @rockhyrax

@rockhyrax well, it's greek, and 'hyraces' got past peer review: http://bit.ly/biINom

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In reply to @rockhyrax

@rockhyrax English is changing - viz. 'indexes' vs 'indices' is 3.6m to 2m on google scholar. Scholars are writing this! Scholars!

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In reply to @rockhyrax

@rockhyrax PS no clever retorts about the verb 'index'

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In reply to @rockhyrax

@rockhyrax men, geese and people everywhere are insulted!

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sausage beans sausage beans sausage beans SAUSAGE BEANS SAUSAGE BEANS

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In reply to @aperfect

@aperfect that looks creepy just referring to dad as @eqdynamics. Twitter should automatically rewrite '@dad' to your dad's actual username

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considering writing "EDI are bad at everything" in morse code using tabs and spaces somewhere in my sourcecode.

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looking back, three jacket potatoes topped with a can of tuna, a lot of cheese and three rashers of bacon was never a realistic proposition

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In reply to @peterrowlett

@peterrowlett what do you know about adaptive assessment in online exams? That's my project next year for this SCORM thing at Newcastle

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In reply to @peterrowlett

@peterrowlett I think so. We might be gathering some people together to discuss standards. I can't invite you, but would you be interested?

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In reply to @peterrowlett

@peterrowlett okie doke, kein Problem. Have I shown you what I'm making? Example at http://is.gd/cKyZU - does that interest you?

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In reply to @ColinTheMathmo

@ColinTheMathmo that's really interesting!

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Sitting in on Robin Johnson recording revision videos. Never meet your heroes.

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Confused a foreigner on the metro. To be fair, he confused me first. I think he got off at the right stop, so it was karma-neutral.

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In reply to @EATng

@EATng does the foodie walk start at the castle keep behind the cathedral? My mum's convinced it starts at the civic centre

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In reply to @alexbellos

@alexbellos tell him to sort out the camerawork in his video lectures. We've been watching his quantum computing series in our seminars

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ahhh itv commentator man don't talk about the "german gene kicking in" when they start winning, especially not when the player is polish

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In reply to @aperfect

@aperfect truth spoken to twitter

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Michael Schumacher needs a visit from Supernanny

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gosh, it might be time to download a matmos album. Especially as emusicsmas is two days away and I still have 14 downloads.

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In reply to @JanvierUK

@JSlayerUK you're winding yourself up. Distract yourself - compose a limerick about lembit opik, factorise a big number, take deep breaths

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@qikipedia: Today's B word: Beckets. The little loops on a pair of trousers or a raincoat for a belt to pass through

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In reply to @brittneybean

@brittneybean very slick! but: the maths on crops seems odd, and I didn't build a road properly in the tutorial but it carried on anyway

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In reply to @brittneybean

@brittneybean refreshed the page and it got stuck in an infinite loop of clouds when I clicked "start playing"

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I have exactly 13000 emails in my inbox! I will celebrate with Frosties

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turning the volume up for a good song, walking across the room to do some work, a bad song comes on after: unfortunate.

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using my telephone voice to comment on the LRB blog

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In reply to @standupmaths

@standupmaths for the foreseeable future, non-checked shirts are not allowed, by order of the management

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I have found the one phrase, out of all possible phrases, most likely to amuse a 12-year-old: "sperm whale faeces absorb gas"

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In reply to @JanvierUK

@JSlayerUK oh, so true! You are like a modern day Peter Kay. Please tell me about more things I remember so I can laugh!

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In reply to @JanvierUK

@JSlayerUK I didn't have enough characters left to say not sarcastic! It genuinely did make me laugh

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In reply to @GreyAlien

@GreyAlien what do you recommend for "unpronounceable" and "unspellable"?

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In reply to @GreyAlien

@GreyAlien the correct answer was, "pretend you're Irish"

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In reply to @brittneybean

@brittneybean your flattr button on trackinthebox says "error"

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Walking behind a trendier version of me. This isn't looking good. Oh, he's stopped to look at some fashionable clothes. The gap is growing!

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In reply to @JanvierUK

@JSlayerUK which app? beebplayer?

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someone call BP and tell them to forget about underwater robots - what I just dropped in the toilet will solve their problem

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In reply to @brittneybean

@brittneybean I thought that site was about the NUFC player and got very confused.

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In reply to @alexbellos

@alexbellos I'd never thought of using football matches to check the birthday paradox. It's almost exactly the right no of people!

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would I regret buying one of these paper birds? http://is.gd/cWChn

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In reply to @aperfect

@aperfect I don't know, previous bird-themed purchases have provided satisfaction

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why did I even bother buying cheap Tesco soup?

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In reply to @alexbellos

@alexbellos I'm not a statistician, but analysing shared birthdays after the first round of group games will cause educative problems

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the Tories' impression of what is fair is vastly different to mine

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about to make it rain on www.alternativemeats.co.uk

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In reply to @NCLSusCampus

@NUSusTeam so it's something like recycled tonnes as a percentage of recyclable tonnes, or as a percentage of total waste?

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taking a shower shouldn't push the limits of perception, but every morning deciding how hot to make it prompts a metaphysical conundrum

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In reply to @JohnChrisJames

@JohnChrisJames good luck JJ! Will you be uploading pictures anywhere?

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hoeren Sie mir und legen Sie Ihre Sombreros auf: BURRITOZEIT BEGINNT JETZT

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In reply to @JanvierUK

@JSlayerUK eat food until there is space in the fridge for the cake

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spent two hours shooting hundreds of federales on the xbox only for some 'dude' to shoot me in the face seconds before I got the achievement

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25!!! ♺ @BBCWeatherNorth: Temperatures up to 25C/77F by Sunday. Han B

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A chocolatier has opened on the high street next to the working men's club. Very posh! Will try some when I get back from my walk.

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ok amazon, if you insist, I will buy the Taschen edition of Byrne's Euclid for 40% less than the RRP.

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In reply to @Bishnavitch

@Bishnavitch fight the good fight

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In reply to @hellobuglers

@hellobuglers to be fair Capello was hiding tactical advice in one of their clues: "Rasta friend greets Pauline's son (4-3-3)"

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In reply to @brittneybean

@brittneybean cripes, that sounds like something out of the 19th century!

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In reply to @Bishnavitch

@Bishnavitch what time does the film start? Having dinner with my mum tonight

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In reply to @Bishnavitch

@Bishnavitch doesn't matter, I've now got to get my own dinner so will be at yours at 8:30. Can I use your parking space?

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In reply to @Bishnavitch

@Bishnavitch I'm outside your flat!

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In reply to @brittneybean

@brittneybean I stared at the iwi logo too long and now it looks like the dude on the right is giving a huge backhand slap to the left guy

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It's here! http://tweetphoto.com/29834585

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In reply to @standupmaths

@standupmaths aah! I just found out the word for that a few days ago and in a massive case of irony I've completely forgotten it!

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Why have I had a Rae Spoon song stuck in my head for two days? I don't even know the words, just some of the vowels

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oh man it's all going right for me right now! Chile con queso, SCORM object reporting scores properly, theorem proved, cowboys shot. Fab!

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In reply to @rockhyrax

@rockhyrax watermark, that's the ticket

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July

The entertainer is on the metro. He goes "ding!" when the train does. Everybody is laughing. What a guy.

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In reply to @decaf_unicorn

@fumbleweeds what are cereal boxes made of over there? I have literally never had this problem.

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In reply to @rockhyrax

@rockhyrax the latter

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grigory perelman got 99 problems but the poincare conjecture ain't one

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In reply to @rockhyrax

@rockhyrax you're coming round, I knew you would!

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In reply to @aperfect

@aperfect apparently you need to go and see this http://www.twitvid.com/VE0Q3

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writing latex on the patio. It isn't really working for me.

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so I'm supporting Germany but I don't like ozil's face. What to do?

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In reply to @aperfect

@aperfect OH?

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In reply to @rockhyrax

@rockhyrax yes, but I forgot to close an environment and now my deck chair is all wet :(

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What kind of lazy barber is closed on a Monday? I'm starting to look like cousin It

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switched my paper to sans-serif. Not sure how my supervisor will react, but I'm prepared to fight for it.

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In reply to @JanvierUK

@JSlayerUK no, they get one vote which will decide the winner. Or, everyone gets candidates-1 votes, winners assumed to stay with same party

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In reply to @JanvierUK

@JSlayerUK hup Holland hup!!!

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Made the correct choice re coming home before the rain really starts

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somebody, like, lunge at me with a knife while explaining the definition of nilpotent to me so it sticks in my memory this time

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Another thing only emotional trauma will imprint on my memory is the order of the junctions on the A184

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In reply to @rockhyrax

@rockhyrax so not radically different from the current situation

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the whole chain of events leading to me sitting down to eat my dinner in front of the football has failed to happen. I'm hungry and confused

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In reply to @peterrowlett

@peterrowlett haven't read this but here you go http://arxiv.org/abs/0803.0150

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In reply to @rockhyrax

@rockhyrax it certainly makes them drawees if they ever do open again

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In reply to @MarcusduSautoy

@MarcusduSautoy hey! you! marcus! we have got to talk / your convoluted verse structure / tends to prose as the length of the poem increases

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In reply to @MarcusduSautoy

@MarcusduSautoy exactly 140 characters, or almost rhymes if you change start to "er, dork/ author!" but I didn't want to call you a dork

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In reply to @MarcusduSautoy

@MarcusduSautoy never mind, just noticed I missed out the 3. Will stop spamming you now.

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In reply to @aperfect

@aperfect is that where those dirigible penguins were?

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The rain has made the midgies hatch, and this spider has caught so many I worry it hasn't git enough brains to know when to stop eating

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ok real mathematicians, forget pi day, we can celebrate pigeon-hole day! http://is.gd/dndrG

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"The gourmet chocolate pizza company" - you couldn't make it up! It's the middle classes gone mad!

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In reply to @Htbaa

@Htbaa are you just trying to wear out your hash key?

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In reply to @alexbellos

@alexbellos aha! time for me to dig this up: http://is.gd/drwLS I find it very useful as an explanation of the general idea

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In reply to @brittneybean

@brittneybean http://is.gd/drBZt

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take that, bag of cookies! There was only room for one of us in this town, but happily there was room for all of you in my tummy

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@nulibsage I have yet to encounter a Springer article in a journal the uni has subscribed to. Are they just too expensive?

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"tarski" and "high school algebra problem" is the biggest juxtaposition in maths I can think of http://tinyurl.com/3898t45

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In reply to @GreyAlien

@GreyAlien oh no! I even tried telling facebook I was a girl to get rid of the tacky dating ads. Is there no safe configuration?

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In reply to @Gelada

@Gelada @standupmaths does hornby sound enough like corby to make the obvious pun?

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@nulibsage no, I know which journals I want, but we don't subscribe to them!

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New mathem-o-blog post: Computable categories (http://bit.ly/cmjjvs)

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@nulibsage I haven't been keeping a list, but "lecture notes in computer science" (1980) was the last one

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In reply to @Htbaa

@Htbaa it's good to see he's reaching out to foreigners? That's a first step?

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In reply to @Electrokittie

@Electrokittie but Saturday Saturday Saturday!!!

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In reply to @Electrokittie

@Electrokittie !!! That is a brilliant idea

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In reply to @Htbaa

@Htbaa yeah, we banned him from coming over here

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In reply to @Htbaa

@Htbaa he's got one thing going for him, that his name being on the news taught me how the Dutch pronounce the letter G

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In reply to @rockhyrax

@rockhyrax well, the story's quite interesting, actually...

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New mathem-o-blog post: Lists and finite trees are $E_3$ (http://bit.ly/a1gKPQ)

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ploughing through my unfinished blog posts because I am so done with pregroups

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In reply to @JanvierUK

@JSlayerUK last time I had that done, I met an old school friend on the street afterwards. It's very hard to not look crazy in that state

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In reply to @aperfect

@aperfect genetically, I am glad I only got autism and not hayfever from mum and dad

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In reply to @fatfieldfoodie

@fatfieldfoodie bought streaky bacon 2 for 1, and some posh bbq sauces. I think I was too early, some stands were empty

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In reply to @JanvierUK

@JSlayerUK woooooow, those are really good!

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I have basically no decisions to make about what to eat for the next week or so

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In reply to @Alternativemeat

@Alternativemeat bbq yesterday was a big success. Impala sausages were the consensus favourite, but I didn't get any!

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opulence: using charbonnel et walker and clotted cream ice cream to make a chocolate milkshake

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should I make a mockery of amazon prime by ordering a 79p box of chalk to be delivered tomorrow by special delivery? Tempted!

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In reply to @GreyAlien

@GreyAlien that was the temptation! Such enormous pointlessness is like performance art

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In reply to @rockhyrax

@rockhyrax I used no sugar. Is that something you're meant to do? I just sort of blended everything together and it was ok, I suppose.

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Fol Chen's "In Ruins" sounds like the intro theme to a totally kickin' 80s movie

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In reply to @JanvierUK

@JSlayerUK that puts you one up on Dick Cheney

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aaaaaahhh! Why do we not subscribe to the journal of mathematical sciences?! WE'RE A MATHS DEPARTMENT

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In reply to @Amy1306

@Amy1306 at least you're not male

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New mathem-o-blog post: Infinite trees are $E_3$ (maybe) (http://bit.ly/9l94cP)

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In reply to @rockhyrax

@rockhyrax YES. I have to start one of those now.

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came into uni to be productive; left my usb stick at home; sheesh

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finished Limbo. Good, but not worth a tenner

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In reply to @Bishnavitch

@Bishnavitch potentially, if it's a late-ish showing

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In reply to @peterrowlett

@peterrowlett now I want to make a Magic Pi picture. Maybe it could be a mobius strip, for full maths art cliche effect.

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for the first time since the Little Ice Age, my flat is warmer than the air outside it

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If this old man was a transformer his name would be Insane-o-plex and his special power would be creeping me out

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Time for Jardine's cowboy kettle chilli yesssssss

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In reply to @GreyAlien

@GreyAlien ahh, I'd always wondered about that! oil change places are everywhere in the US

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In mourning for Tanfastic, the shop with the best name

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In reply to @aperfect

@aperfect god damn it I made that joke last weekend!

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In reply to @aperfect

@aperfect in front of bish, discussing wraps

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I have had to deplete my Strategic Reserve of pound coins because domino's isn't taking card payment. I might regret this.

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In reply to @JanvierUK

@JSlayerUK you don't need people, you need Soupy Norman

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just realised last letter of my bank password needs to be a repeat because it only appears in the last box, so could be deduced

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In reply to @rockhyrax

@rockhyrax much more mundane - my wallet doesn't have a coins bit, but I buy a sandwich every day for lunch, so pounds accumulate

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In reply to @JanvierUK

@JSlayerUK if you're considering it, don't bother with Gordon Ramsey's Plane Food. It's only so-so.

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In reply to @alexbellos

@alexbellos I think so; that rings a bell... (pun ENTIRELY intended)

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In reply to @rockhyrax

@rockhyrax what's going on, are you playing a mad combinatoric variant of musical chairs?

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the best thing ever! RT @divbyzero: RT @pickover: Please enjoy this shiny fractal cow. http://bit.ly/cvCEDA

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people who drive in the middle lane are why democracy can never work

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Misery Bear has a day off http://youtu.be/t3e9rc1PueI

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August

In reply to @beefok

@beefok no! functional please!

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In reply to @beefok

@beefok anon functions alone are worthwhile but haskell is like writing pure maths. Lots of clever optimisations can be done by FP compilers

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In reply to @ColinTheMathmo

@ColinTheMathmo it was underneath a Dan Brown book. That was the bit I found hardest to believe in the whole episode

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This woman's handbag looks like the oogie boogie man.

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and I thought "Genuine all-over tan 'an impossibility'" was going to be an application of the hairy ball theorem http://tinyurl.com/25av34j

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In reply to @brittneybean

@brittneybean doesn't seem to work. After I click play, nothing happens

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Making eye contact with people would be a lot easier if I could tell when they are making eye contact with me

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In reply to @decaf_unicorn

@fumbleweeds I'll swap you. It's all overcast and horrible here. I had the heating on this morning!

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The rabbits in the park are so bad at hiding. Where have the birds of prey gone?

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if Oliver Byrne had had access to a 70s graphics terminal, he might have made this http://bit.ly/cwyoHW (@alexbellos)

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In reply to @brittneybean

@brittneybean giraffe is mine, hands off. On my wall it would say without words, "a tall man lives here, but don't worry, he's into cuddles"

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In reply to @brittneybean

@brittneybean I'm ok with that as long as his middle name is Raphael, so his rapper name would be G-Raf.

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In reply to @brittneybean

@brittneybean every now and then I consider complaining about a song but then I get a sense of perspective and do something worthwhile

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my computer's failing in a very cinematic way - the sound is going all mechanical, graphics are jumbled up, but nothing has stopped working

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In reply to @peterrowlett

@peterrowlett you could mention the release of MathJax, which will help maths on the web a lot. It's sponsored by the AMS, Elsevier, etc.

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catching up on five years of PC games. Where to start?

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In reply to @Bishnavitch

@Bishnavitch curry. What's wrong with you, that's not a hard choice.

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In reply to @GreyAlien

@GreyAlien that was the last game I bought!

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In reply to @alexbellos

@alexbellos if you can check an answer to a question in not too long, does that mean that you can find the answer in a similar timescale?

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Two women, both wearing weird asymmetric work trousers but normal casual tops, waiting for the metro. What?

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In reply to @alexbellos

@alexbellos yes P = probs s.t. solns can be found in poly time, NP probs s.t. solns can be checked in poly time. P is in NP, but is NP in P?

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In reply to @alexbellos

@alexbellos oh dear. @standupmaths 's job is safe.

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In reply to @brittneybean

@brittneybean apart from the super mario bros theme, which is the achievement of our age, Outcast had a good score

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In reply to @brittneybean

@brittneybean ahhh I take it back! I forgot Monkey Island! http://bit.ly/dmURvO

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In reply to @aperfect

@aperfect that's cheating, it's film music!

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In reply to @aperfect

@aperfect ok, I concede. Can't spend time arguing, busy looking for a lynx emulator

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In reply to @aperfect

@aperfect "even the Guardian"?!

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fixed three really small bugs today, good work. Now I will play games until my eyes have a serviceable map of q3dm17 imprinted on them

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going to make a sarky comment on a facebook post but can't find the crucial corroborating evidence to back it up. Victorian txtspeak anyone?

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to expand: fairly sure it was a metafilter post about txtspeak-like abbreviations in wide use in 18/19th C letters, with famous examples

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Yes! The champion difficulty space in Eldon garden multi-storey was free. There should be an Xbox achievement for using it

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me to Max: "don't wear shoes, dog!" Where does he get his ideas from?

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In reply to @brittneybean

@brittneybean the Naked and Famous: Larry Flynt has that Venn diagram on a stained glass window in his office

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In reply to @MathJax

@MathJax ah! can fonts be stored on a separate server and not break cross-site scripting rules? that helps a lot!

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In reply to @Bishnavitch

@Bishnavitch I thought I had fast-forwarded five year and I had become a bigoted professor. Is Dr Christian off that street doctors thing?

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In reply to @aperfect

@aperfect yes

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The dog is suspiciously cooperative today, and I doubt that my lectures on the value of collaboration were what turned him

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In reply to @GreyAlien

@GreyAlien because the IR light is weaker, so by pressing harder we're holding it down for longer, so light has greater chance of being seen

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In reply to @GreyAlien

@GreyAlien depending on the remote, the contact on the button could also be flaky

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a search engine for recipe videos: http://cookblast.com/

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tomorrow we'll be talking about 2010's top painted rodents in the Art Rat Chart Chat #newcultureshowsegments

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someone's subscribing to my Interesting Esoterica maths collection on Mendeley! Now I feel pressure to find more papers

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In reply to @divbyzero

@divbyzero have a look at www.mathjax.org - yeah it isn't built in to the browser but it's ace and supports all of amsmath

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In reply to @trackinthebox

@trackinthebox your emails have had  characters littered about them for the past few days

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In reply to @brittneybean

@brittneybean windows live mail. Good point - they're not there on the web interface

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I lost my place while cleaning my teeth and ended up just brushing teeth at random until it felt like two minutes had elapsed

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In reply to @alexbellos

@alexbellos tl;dr: Efalex - suppliers of brainboosting omega supplements - sponsored his latest creation

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In reply to @brittneybean

@brittneybean my complaints about that article's logic last longer than a tweet

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In reply to @aperfect

@aperfect it doesn't even make any sense, it's meant to be a page with the corner folded

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incompletipedia: article titles ending in an ellipsis: http://j.mp/c5skcK

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In reply to @peterrowlett

@peterrowlett just saw a very old book in Sedbergh on that subject. Bought another Hazel Perfect group theory book instead though

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Being stalked by a van from wessington cryogenics. In stasis, no one can hear you scream for 80 years or so

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that's nice, Vexed is very funny. I'll watch it from now on

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In reply to @Electrokittie

@Electrokittie which is why you're now an Avon lady?

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I need to get myself a tube of Eczemate, the only skin moisturiser endorsed by five reigning grandmasters

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In reply to @aperfect

@aperfect yeah I'm amazed you've never heard of it. It's some guy's petty revenge for Mt Rushmore being scraped out of a sacred mountain

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In reply to @aperfect

@aperfect do you get any nihilists turning up?

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In reply to @trackinthebox

@trackinthebox I played Parov Stelar at a party last year and it got a stonier reception than an Iranian adultress

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In reply to @Alternativemeat

@Alternativemeat I prefer to view the ageing process as me continually setting Personal Bests for time spent on Earth

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In reply to @brittneybean

@brittneybean the moves he starts pulling at 1:24 are deadly serious.

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11pm Wednesday radio 4 comedy is my favourite time, wavelength and genre combo http://beta.bbc.co.uk/i/tgf1c

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In reply to @MEIMaths

@MEIMaths extremely useful, thanks!

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In reply to @JanvierUK

@JSlayerUK Pizza Hut have been in trouble for quite a while now. They've just started making real pizzas again though, so who knows

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In reply to @Electrokittie

@Electrokittie that's the most FFs I've ever seen. Is that your whole friends list?

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In reply to @Electrokittie

@Electrokittie oh, but thanks for including me

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In reply to @brittneybean

@brittneybean also The Discretionary Purchases

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I flipped all the pogs but they wouldn't let me keep them :(

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yuk, I am using my old bluetooth mouse and it's like all my pointing desires are put through an "if you were old and infirm" filter

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automatically find your next prime birthday(s) http://j.mp/93Psj6 @standupmaths @peterrowlett (will add explanatory text later)

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In reply to @rockhyrax

@rockhyrax just had a look into allowing sequences from the OEIS but they don't have a nice API which gives enough elements

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In reply to @Gelada

@Gelada feel free to re-use my javascript prime birthdays thing (http://j.mp/93Psj6) on primebirthday.org. It's very simple.

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aaarh, now that's a third conference happening while I'm on holiday!

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In reply to @standupmaths

@standupmaths not undetectable, they told manufacturer how to detect & avoid it before they published. It's just a man-in-the-middle attack

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In reply to @tynesidecinema

@tynesidecinema please could you fix it for me so tynesidecinema.com redirects to www.tynesidecinema.com? It's always annoyed me

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In reply to @alexbellos

@alexbellos fairly sure I could make a necklace which could describe ALL of pi

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In reply to @brittneybean

@brittneybean good music!

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September

In reply to @badmachinery

@badmachinery what's your policy on fixing typos? "bgger" in today's first panel if you are pro-amendment

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In reply to @aperfect

@aperfect oh it's a problem with your phone is it?

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feel like achieving today. What to achieve? Your achievement suggestions, please!

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In reply to @MarcusduSautoy

@MarcusduSautoy that means set of uninteresting numbers is not well-defined, not that it is empty

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In reply to @rockhyrax

@rockhyrax vanilla assassin. Be afraid

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In reply to @JanvierUK

@JSlayerUK his face would probably benefit from a collision. No, that's harsh. Helmets aren't a legal requirement: http://j.mp/cAPUNa

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In reply to @JanvierUK

@JSlayerUK yes that's important, but slightly inappropriate statistic. Replace women with 'world's pooreest X %' and you'd get similar

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In reply to @JanvierUK

@JSlayerUK that's a fair compromise

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is it just TeX that turns the letters 'fi' into a ligature which can't be copied and pasted correctly, or all PDFs? IT ANNOYS CP SO MUCH

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I've been adding lots to my Interesting Esoterica mendeley collection recently: http://j.mp/cf8240

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New mathem-o-blog post: Some notation for FPAs and HNN extensions (http://bit.ly/9vqLDu)

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In reply to @Electrokittie

@Electrokittie you use THE MOST!!

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why does windows think that the same mouse plugged into a different usb port is a different device?

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what do you call people from Essex? Essecians? Anyway, I will start a company selling them glassware and call it "Verre Good"

1 favourite 0 retweets

This man has "TOON ARMY" tattooed across his knuckles in a very fetching Gill Sans. Aspirational tattooist or style-conscious hooligan?

1 favourite 0 retweets

In reply to @decaf_unicorn

@fumbleweeds "sandwiches which will prevent you from ever being able to open your mouth again"?

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In reply to @brittneybean

@brittneybean not really

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In reply to @peterrowlett

@peterrowlett 12:34:56 is a valid, and better, time

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In reply to @peterrowlett

@peterrowlett sheesh you know when you tweet something then instantly regret it? I forgot about seven

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Super Monkey Cube #northkoreanvideogames

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In reply to @brittneybean

@brittneybean I would also prefer if 20% of my wages went to Jax, the best Mortal Kombat character

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In reply to @HilariousCow

@HilariousCow isn't that just called a stable system?

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In reply to @brittneybean

@brittneybean unmix: skillful dissection of a song into its component influences

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@RachaelBailes free food? macbook? Here we get to listen to construction all day, and I'm paying for the privilege

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In reply to @HilariousCow

@HilariousCow it applies to your wall jumping thing though. Mario kart is engineered to be chaotic, or consider dice wars vs Risk

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Sat opposite a thinner, ambiguously-aged Clare Balding lookalike who'd struggle to be heard amongst dormice. What job can she possibly do?

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Off on holiday now, bye!

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I am not linguistically equipped to operate in catalunya

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Hooray, finally humanity has advanced enough to provide a PAYG sim with decent internet. And in crazy Spain, too!

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http://plixi.com/p/45287289 nachos coyote, gone before I could blog them

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Fairly sure it was the lemur that was made in God's image

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In reply to @tynesidecinema

@tynesidecinema a town called panic? In English? I will round up the troops!

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euronews' "No comment" is top. 3 unedited minutes of prince William flying a sea king was more satirical than anything Bremner could manage

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In reply to @Rosalot

@Rosalot I thought you were a mackem?

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In reply to @peterrowlett

@peterrowlett was going to tell you something interesting about symmetry and the Alhambra, but it's completely sold out. Wasted holiday!

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No tickets available for the Alhambra and I've got food poisoning. Poo.

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Cuboid walks into a bar. Barman says, "why the long face?"

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Chia pets are the topiates of the masses

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In reply to @divbyzero

@divbyzero not to my knowledge. Geometry hasn't really had the pop-sci treatment at all, apart from golden ratio kooks

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In reply to @peterrowlett

@peterrowlett I started with diagrams on mine - tesseract, sierpinski, etc

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In reply to @divbyzero

@divbyzero yes, maths teachers have been overly optimistic about what is well-known since time immemorial

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The man next to me is not happy with his career choices. He is expressing this by playing games on his blackberry and sighing a lot. How sad

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Oh no I've become one of those people who gets up ten minutes before the train stops. Blackberry man's awful worldview has contaminated me

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In reply to @divbyzero

@divbyzero thanks for that, added to my interesting erotica collection

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In reply to @divbyzero

@divbyzero sorry, was in reply to you sending me "misconceptions about the golden ratio" ages ago. I've just got back from holiday

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In reply to @divbyzero

@divbyzero oh god, just realised I typed erotica and not esoterica!! Oh dear oh dear!

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In reply to @decaf_unicorn

@fumbleweeds just got to read about an older woman etc etc

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Bresenham's algorithm and crossing Northumberland street when it's busy, theory and applications. C Perfect, 2010

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esoterica enthusiasts: some Cambridge types built a set of logic gates from a model railway, but I can't find a reference. Does anyone know?

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If this woman thinks she can walk faster than me, she needs to reevaluate. Bonus points for trying it with a week's shopping in hand though

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@ProfKinyon thanks for that anyway, I'm writing a talk on Turing completeness in odd places, so that will make an appearance

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October

In reply to @MEIMaths

@MEIMaths 227 is a more imminently achievable pi-related goal

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mum just described Darlo as "down South". That's right.

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In reply to @peterrowlett

@peterrowlett on my Spanish holiday I didn't see the alhambra but I did see the magic square on the sagrada familia: http://j.mp/94FBiu

0 favourites 1 retweet

Dear Messrs Everybody: I want to wear interesting clothes, but am extremely enormous. Suggestions please. Yrs from way up high, Christian

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How do Galaxy benefit from me 100% fancying the woman in their ad? Like, I'd buy her some if I met her, seems she enjoys it, but otherwise..

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ahhhhh rubik's deja-cube! I've just shuffled it into the exact same position as the last time! CAN'T HANDLE IT

0 favourites 0 retweets

In reply to @JanvierUK

@JSlayerUK your last tweet is magic and I have informed the Witchfinder General

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In reply to @theyellowstereo

@theyellowstereo it's not a laugh track, it's a live audience

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English tests to gain citizenship are terrible and wrong, but I would advocate the compulsory removal of soulpatches

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In reply to @divbyzero

@divbyzero the sad thing is, they know the kind of people who dislike that ad are outnumbered by those who like it. They've done the math :(

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In reply to @Electrokittie

@Electrokittie are you basing this on the new bit of Eldon Square, which is right next to where lots of chinese people live?

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In reply to @Gelada

@Gelada I was really just going for a bit of irony with "do the math". The advert doesn't bother me

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A Town Called Panic is on at the Tyneside on Friday. I am looking for people to see it with. http://j.mp/9NOjfg

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In reply to @MarcusduSautoy

@MarcusduSautoy was that copied out of a PDF? Sadly, my first thought on reading was about the missing fi ligature.

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There is a dude on the metro wearing a bandana and fingerless gloves, as if Teenage Mutant Ninja Turtles 3: Turtles In Time never happened

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new mathem-o-blog post: Disappointing Stationery http://j.mp/bFD82X

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In reply to @rockhyrax

@rockhyrax are these what I think they are? http://j.mp/a2xaC3

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In reply to @rockhyrax

@rockhyrax at Bioparc in Valencia. It was a very friendly place for all sorts of animals. No koalas though :(

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean but they support kiva! It's microloans! A payday loans site would have a background the colour of old tobacco

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mathmos: never forget the debt we owe to bankers (pun so intended). The maths behind making www.wonga.com look good to laymen must be hard

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In reply to @WongaWoman

@WongaWoman I meant the maths you do to calculate your prices. Understanding of power series etc was motivated by banking

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In reply to @Bishnavitch

@Bishnavitch I hope you have one in XXL

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pepsi are running a competition where a camera is given away every 10 minutes. Don't enter at lunchtime with the masses, so when is best?

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In reply to @aperfect

@aperfect so not that, then. I am getting everyone's choices so I can rule them out. 4am is very popular

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In reply to @aperfect

@aperfect so 3:50 is the logical choice

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google keeps teelling me I'm sending automated requests because Google Instant is turned on

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while I was away, Northumberland's Most Ginormous Spider looked after the flat for me http://post.ly/12Vd2

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dear the priest who decided gaelic 'v' should be written 'mh' : why did you do that.

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In reply to @Gelada

@Gelada are you doing maker faire again next year? I'd be willing to lend a hand if you are

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has everybody in the world's msn account been hacked?

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In reply to @peterrowlett

@peterrowlett @MarcusduSautoy 's www.mangahigh.com really is very good

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@RachaelBailes seriously though / second year's a horror show / get your bum in gear

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In reply to @brittneybean

@brittneybean I thought you were winding up Belgians again

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doing some old-school mousing with my beloved wireless intellimouse explorer. Why did I ever leave you?

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In reply to @peterrowlett

@peterrowlett aaaaah I really want to go to that! Why must I live in the clean, friendly, cheap north?

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In reply to @brittneybean

@brittneybean don't worry, in 10,000 years Science will be able to make you sane again

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In reply to @tynesidecinema

@tynesidecinema has anyone said a town called panic yet? But only if I get to be the crossing guard. He's got everything in that shed.

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In reply to @trackinthebox

@trackinthebox I wish to show my appreciation for good tracks, but am not obnoxious enough to post to facebook. Could you add a like button?

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Worried my last words will be tedious, so "Rosebud" means more morphine and "this is the last of earth! I am content" means change my bedpot

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In reply to @tynesidecinema

@tynesidecinema did one better than RTing - I emailed the whole uni maths department. I may or may not go myself

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In reply to @brittneybean

@brittneybean is that like half a Yakoff Smirnoff joke?

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dried yeast is like the essence of tiny insects in a powder . It loves sugar! Straight away it's like MNYUMNUMNYUM

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My daily routine is in exact syncopation with the metro timetable

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In reply to @tynesidecinema

@tynesidecinema maths department trip update: the timing of the play conflicts with the pure maths seminar. Sorry!

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Pigeon pecked at a lost malteser. Didn't like it, continued on its way.

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geometers: is there such a thing as like a bezier curve on a sphere's surface, using maybe quaternions?

0 favourites 0 retweets

In reply to @beefok

@beefok do you know any unlikely turing-complete machines? I'm compiling a list for a talk I'm givin in january?

0 favourites 0 retweets

In reply to @beefok

@beefok oh no too many question marks? I didn't mean to do that?

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no way, a Springer journal we have access to!

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why does my kitchen smell of melons? There are no melons in my kitchen

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch what is the plan today? Can I come over to yours beforehand? I don't know where the showing place is

0 favourites 0 retweets

In reply to @divbyzero

@divbyzero I don't know about that, it sort of looks like a fractal black armband already

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It suddenly occurred to me while shaving to leave the mustache on. That was a scary thought.

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Not pleased with the number of people for whom retro fashion means dressing like the worst person in the 80s

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow I've just been doing lots of quaternion stuffin BlitzMax. I could write a post on my maths-code blog if you'd like

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow well, I'm a professional mathematician, so I can probably help you with that

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In reply to @HilariousCow

@HilariousCow do you still use your msn account? I can't DM you.

0 favourites 0 retweets

In reply to @Htbaa

@Htbaa truth

0 favourites 0 retweets

In reply to @decaf_unicorn

@fumbleweeds it means you won't be seeing any grey squirrels for a while

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Hey, @alltheworldschocolate, get over here.

0 favourites 0 retweets

In reply to @trackinthebox

@trackinthebox could you please at least spell-check take-overs, viz. yesterday's post

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In reply to @JanvierUK

@JSlayerUK bravo!

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FESH AN CHEPS !!!

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new mathem-o-blog post: some awful maths jokes http://checkmyworking.com/?p=269

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In reply to @decaf_unicorn

@fumbleweeds as a geordie, I must be transatlantically outraged at anyone wearing more than a t-shirt and shorts in that weather

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my sinuses seem to be competing for the job of digestive tract. Is this the Big Society? Eggy nostrils aren't in the coalition agreement

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean I will add to your misery: the top About/Contact links and the footer text are invisible with the special template

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean I'm colourblind

0 favourites 0 retweets

In reply to @tynesidecinema

@tynesidecinema sorry, I've got a thing on tonight

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch sounds like a Samuel Pepys diary: filed insurance papers then to Newcastle where I saw Mr MUTHURANGU flip some 20 stairs

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was the transylvania lottery conceived just so maths lecturers can have an example application of the fano plane?

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hooray! > @nulibsage: We're trialling the Springer ebooks collection. Explore 20,000 titles at http://j.mp/ahrg4q

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there's a pretty tasty pizza in the oven. Will update if it turns out it *is* possible to put too much chicken and bacon on

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tonight's episode of White's was like any insufferable indie film of the past decade

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In reply to @Bishnavitch

@Bishnavitch no update necessary, more evidence there is no such thing as too much chicken and bacon

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I made like a cargo cult sandwich. There's no need for tomato to be in a coronation chicken sandwich but I put it in because the shop does

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch I don't think even skinheads would be in the mood to do anything bad the way this match is going

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths The Good Soldier Svejk (unlikely to be in a railway waterstone's) or Jose Saramago

0 favourites 0 retweets

In reply to @MartinMagni

@Martinmagnusson you haven't really; what if dropbox goes bust?

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean that would be cutting right in to the product they're trying to create

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November

Can't be doing with this. I've got Bell's palsy, of all things. Good grief!

0 favourites 0 retweets

In reply to @JanvierUK

@JSlayerUK it's what you have to have in bizarro-world prison

0 favourites 0 retweets

In reply to @kenfodder

@kenfodder you can have my htc magic when I finally manage to get an upgrade

0 favourites 0 retweets

oh dear I have eaten chocolate instead of dinner

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In reply to @brittneybean

@brittneybean were they the ones with the sexy cover art and nothing else a while ago?

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man if I wanted to hear So What then I wouldn't be listening to radio nova

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"In an ambulance. Agency will provide new clown. Dictated but not read. BONZO" - most tragic text?

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about.com is like wikipedia but with "As a mother," prepended to every article

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In reply to @monsterthreads

@monsterthreads just got your mad discountravaganza email. I will spend lots with you if you make XXL Guys things

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Phrasebook for the linguistics professor's new cleaner. Schwa: shower. Diphthong: bidet.

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In reply to @nilium

@nilium just got an Android 2.2 phone so I bought your wallpaper thingy. It's nice!

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In reply to @peterrowlett

@peterrowlett Rosza Peter is a good candidate - did lots of good working in computability

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In reply to @peterrowlett

@peterrowlett oh, I had forgotten what the post is about! Just treated on my phone without looking

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engineers: if another one of you uses 'O' as the name of a variable which could equal 0, I will just give up. No more help from me.

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does anyone know if it's possible to obtain this t-shirt http://j.mp/ap0UeA in the UK or Europe?

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In reply to @JanvierUK

@JSlayerUK sorry, have we been annoying you lately? I'll pass a memo round at the next meeting

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In reply to @jefferickson

@jefferickson some top tweets today, keep it up!

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Ive always wondered why the old lady upstairs needs a car. It turns out she drives it across the road to the metro station

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In reply to @aperfect

@aperfect what's wrong with that? It's quite a nice sculpture.

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In reply to @aperfect

@aperfect what's wrong with that? It's a nice sculpture, and the video both explained the "algorithmic" bit and was nice to watch

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Saw a girl in a @monsterthreads hoodie. It was good.

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I just recommended Bleak Expectations - Series 4 http://bbc.in/btsxPQ

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In reply to @brittneybean

@brittneybean welcome to the club; your membership card got lost in the wash. I'm sure you understand

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In reply to @mathpunk

@mathpunk that depends on if the Infinite Taco is well-defined. If it's full of mystery meat from a sketchy streetvendor, you've got a point

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"a confident, shotgun-wielding young woman"

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it tastes like there's raw meat in this sandwich

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thai green curry: not for cp

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my breadmaker is keeping time with Kermit Ruffins pretty much perfectly. So bourgeois.

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In reply to @brittneybean

@brittneybean there are so many problems with bitcoin

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In reply to @brittneybean

@brittneybean so many that, like, whuffie has more merit as a concept

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I just had a like 30 minute dream about dogs and the iPhone, all for a pun which didn't even work in the end. I want a refund.

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Angles this girl is beautiful from, in radians: pi. Reason for same: pie.
Sorry, that girl doesn't really exist, I'm not that shallow.

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oh poo, someone has already made noetherian matryoshka dolls

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In reply to @guardianscience

@guardianscience "math"?

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little known fact: henri poincare's head could split in half to reveal the bizarre shape of space: http://j.mp/bH2S4h

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In reply to @aperfect

@aperfect HOW CAN YOU SEE ME YOU'RE MILES AWAY AAAAA

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In reply to @JanvierUK

@JSlayerUK don't worry, most of the money goes to music execs and shareholders who were always Tories anyway

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In reply to @Electrokittie

@Electrokittie "Alasia" sounds like an airline with a patch safety record

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Recorded a miserable DNQ in today's 500m Banana Transport. Dropped my bag at the last moment; banana sustained a crowd-pleasing instant KO

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In reply to @JanvierUK

@JSlayerUK nope

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In reply to @JanvierUK

@JSlayerUK the only response that provoked in me is: WHEEEEEEE! I'm rich, white and male! Wahey! What's troubling you? gtalk me or whatnot

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In reply to @joemanaco

@joemanaco http://j.mp/f2wV7Z was indispensable to me, especially the Best Tips page http://j.mp/gU4DtY

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I think I've got Stockholm syndrome with Bill. It's maths time and all I can think of is work to do on the web exam thing

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In reply to @Bishnavitch

@Bishnavitch have you changed your train ticket or not?

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In reply to @JanvierUK

@JSlayerUK aughh, why do I always have to learn about bad policy from you? It is causing bad psychological connections to be formed

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Driving in the snow was a challenge

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In reply to @HilariousCow

@HilariousCow intrinsic: the noise when you pick up food in wolfenstein 3d. Extrinsic: xbox achievements

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If I'd gone to a posher school, I would've started a third-wave ska/punk band called "Cave Diem, Carpe Canem"

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I love cabinet magazine, I really do.

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Parallel Parking on Ice might not be Disney's next song and dance spectacular but it is my new favourite hobby

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How does cress get away with having such tiny leaves? What's its game? Is it really a plant?

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I've just discovered you can drag a shape in google calendar to create an event! Now I will have more time to do the things I put in there!

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Madjo: so hot right now.

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so now I know how much dust my hoover picks up in a year

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The panda hat is the new Ugg boot. I've seen more people wearing one in the past two days than I can handle. Where do they come from?

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OSS 117: Cairo, Nest of Spies. Tonight, 9pm, BBC Four. Every single person watch it, please.

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seriously everybody: OSS 117, BBC Four, now.

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Well done, skater kids, for finding somewhere dry to skate on the day your school is closed because of the snow

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my knee is moments away from dislocating completely

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OK, don't be angry, but I've made the best sandwich. It doesn't make yours any worse, it's just that mine is better.

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because my Dad can't go, he's given me his tickets to I'm Sorry I Haven't A Clue on the 8th of Dec. Who would like to go? I have 4 tickets

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December

In reply to @PickfordBros

@MagBilliardsDev does the finger lift fix involve using the position from say 50ms before the finger-up event?

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Dear All: please stop emailing me for a bit. I'm trying to think

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In reply to @Electrokittie

@Electrokittie plus or minus. You use it when there are two solutions to an equation

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In reply to @brittneybean

@brittneybean Esperanza Spalding is a really really good jazz singer. She has an eponymous album which you maybe need to get right now

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In reply to @brittneybean

@brittneybean you will like this though

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Slow Club finally understands partial isometries and Cuntz-Krieger algebras. Medals all round!

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In reply to @aperfect

@aperfect call that snow? You've gone soft!

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In reply to @aperfect

@aperfect holy quick reply, Batman! 25 seconds!

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found a spade; cleared path to front door; old lady upstairs came down to say thankyou. So that settles whether she died in the cold or not

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In reply to @brittneybean

@brittneybean is this page meant to be public? http://j.mp/gLn4qI

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I've started using Texmaker with synctex to automatically scroll the PDF preview to what I'm writing. I miss vim shortcut keys though.

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In reply to @brittneybean

@brittneybean I only found it because I'm sure you've done James Blake's Feist cover twice. Wasn't it in like the first week you did?

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In reply to @brittneybean

@brittneybean Apparently so!

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In reply to @JanvierUK

@JSlayerUK opinions for opinions' sake?

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Why have the royal mail not cleared their own driveway?

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In reply to @HilariousCow

@HilariousCow is that a diet one can consciously follow?

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In reply to @standupmaths

@standupmaths next we'll discover that some pharma company is selling them mechanical integrators at 1200% markup

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Last call: who would like to see I'm Sorry I Haven't A Clue, the funny radio programme, at City Hall 6pm on Wednesday?

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In reply to @Bishnavitch

@Bishnavitch no, 4pm wednesday! I can't do 2-4

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In reply to @Bishnavitch

@Bishnavitch ok then

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In reply to @Bishnavitch

@Bishnavitch no, I'm seeing I'm sorry I haven't a clue after. Do you want to come?

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My gcse maths tutor came out with some top algebra today: what is P divided by 2? "J and a half"

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I of course meant my gcse maths _tutee_

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Oh dear, recruiters: please be a little bit clever about how your targeted marketing works, or I can do things like this http://j.mp/gtL4pB

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In reply to @brittneybean

@brittneybean I have thought of a social network game based on sorting mail. Is that more or less tedious than farming? Is more better?

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What's the point of this site? http://www.working-days-left.com/

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beginning to have a bit of a freak out that javascript is not type-safe. Maybe my code doesn't need to be *that* error-resistant.

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my heating won't come on! So cold

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In reply to @ColinTheMathmo

@ColinTheMathmo: the page is giving 404 for me, but if it's the stained glass window with the Julia set in, it's a coincidence

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has there ever been a natural explosion on earth sufficiently powerful to propel something decently-sized into space?

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In reply to @GreyAlien

@GreyAlien thanks for that

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It's all gone! The BBC say some places heated up by 20 degrees last night. We get to miss the horrible icechaton stage, hooray!

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In reply to @divbyzero

@divbyzero @TeXtip I feel the Journal of Unpublishable Mathematics will benefit from this tip.

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In 1933, during a lecture on quantum mechanics by Werner Heisenberg, Piet Hein invented the soma cube puzzle. Dude had his priorities right.

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At age 12, Piet's son Jotun proved that a certain shape was impossible to make with the soma pieces, by a parity argument.

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Uncle Ben's risotto: bad or worst?

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In reply to @aperfect

@aperfect They are from my Strategic Reserve. I am quite ill, but I think I'll stick with sausage beans from now on

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In reply to @peterrowlett

@peterrowlett fairly sure they mention it in the In Our Time programme on Archimedes, but there's no text search. Trust wikipedia

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what's the deal with Tesco sending me my password in plaintext?

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In reply to @JanvierUK

@JSlayerUK but he should try not to do that in Qatar

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can someone write a program which analyses Tesco online and lists all the things where the multipack is more expensive, for shame purposes?

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I think I misunderstood the concept of dvds when I bought my collection. I've just rejected every one I own because I've already seen them.

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In reply to @aperfect

@aperfect Special Tactice is of course the name of Vladimir Putin's line of fragrances

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who thought that Quake 3 on the Xbox would be a good idea?

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In reply to @brittneybean

@brittneybean Paul Graham is the Roger Federer of writing 10k words on a thesis that was flawed from the first paragraph.

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interactive geometry in javascript http://jsxgraph.uni-bayreuth.de/wp/ I am so happy

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In reply to @Electrokittie

@Electrokittie seek justice in small claims court!

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bugs are always in the last line you look, but when that line has a comment "THIS IS A HUGE BUG, FIX IT SOON", you can only blame yourself

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Wakey uppy number 3 and it still isn't even 8am. I want to have more dreams about Japanese Dr who!

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In reply to @peterrowlett

@peterrowlett bad news: it looks like 'math' outdid 'maths' for a lot of history: http://bit.ly/dElkT2

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there might as well be a new christmas song http://heideckerandwood.com/

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Is anyone else's mum having trouble understanding why the latest car reg is 60 and not 50?

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Roast dinner of genus 6 http://bit.ly/hOPXAU

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In reply to @Electrokittie

@Electrokittie I like your ideas and wish to subscribe to your newsletter

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In reply to @standupmaths

@standupmaths I always thought shaving was something I would start doing when I was old and responsible

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In reply to @Electrokittie

@Electrokittie straight back atcha!

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Woke up at 8 with the yoshi theme in my head, have been humming it continuously ever since. Decided to start adding in sound effects

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In reply to @aperfect

@aperfect it costs £3 more in tynemouth. Franchises get to set their own prices

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In just before the buzzer with the longest single peristaltic motion of 2010. I'm sure I heard it say 'papa' before it went on its travels

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2011

January

I was banker in French monopoly, brother took money from the bank, I said "mi caisse es tu caisse", multi-lingual pun #funniestmanalive

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In reply to @badmachinery

@badmachinery my dad gets a new pen every christmas but can't draw, so pen fetish -> artistry is ruled out. artistry -> fetish still poss.

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In reply to @standupmaths

@standupmaths or how about a tiny tiny version (click on Proceed to this site at the bottom) http://tinyurl.com/2eosgvs

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In reply to @eqdynamics

@eqdynamics why are you telling me this now?

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In reply to @eqdynamics

@eqdynamics which one?

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In reply to @brittneybean

@brittneybean CFCs, which were causing the holes to grow, were banned ages ago. So problem solved, as far as we're able

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In reply to @brittneybean

@brittneybean was the email I just got from quora automatic or did you actually invite me?

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In reply to @Electrokittie

@Electrokittie not necessarily

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enjoy this: http://www.youtube.com/watch?v=I_7wh_ClamA

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In reply to @brittneybean

@brittneybean replace 'agenda' with 'brag' and you have a conversation in a maths department

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In reply to @HilariousCow

@HilariousCow that would certainly make assassin's creed more playable. I want to know when animation skeletons will have movable shoulders

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I love Germany and Germans. Look at this shop! I would buy lots of them if I was impulsive http://tinyurl.com/32vfkz6

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another meal, another cut finger

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a reading of the hardest recipe ever, farce double: http://tinyurl.com/yb5ovg5

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making all my cookery books better by adding this step to every recipe: leave in fridge overnight; reheat in microwave.

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Raskulls is fun! It's like sideways Mr Driller with alternatively cute characters

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oh dear. Failing the Bechdel test is the least of Raskulls' problems with female characters

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In reply to @divbyzero

@divbyzero first thing he'd do would be to close the door to make sure he's inside.

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going to change my name to Christian My-Middle-Name Perfect, so I can say "'my middle name' is my middle name" and be right twice

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In reply to @Bishnavitch

@Bishnavitch as strong as your relationship is, I'm not sure it's strong enough to withstand a forced viewing of that film

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In reply to @theyellowstereo

@theyellowstereo Hooray! I need some good new music.

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In reply to @theyellowstereo

@theyellowstereo but the yahoo player thing is taking a few attempts before it'll play each track

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In reply to @brittneybean

@brittneybean so that 'abbrv.' in dictionaries is autologic

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trademarks should work the other way too, so if the people decide on a better name for a business they have to use it, eg marks and sparks

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you left snot rags in my car @aperfect

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In reply to @alexbellos

@alexbellos if anything is a candidate for my Interesting Maths Esoterica collection, that is. Hugely impressive.

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In reply to @mathshistory

@mathshistory is there nobody notable who shares my birthday? So if I try hard enough, in 100 years it could be me today?

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In reply to @peterrowlett

@maricarjagger @peterrowlett http://www.youtube.com/watch?v=qmVOZ8WJKp4 as a silly first entry

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In reply to @kenfodder

@kenfodder thanks!

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In reply to @brittneybean

@brittneybean ta like

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In reply to @brittneybean

@brittneybean fairly sure there's an app for that

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In reply to @peterrowlett

@peterrowlett playing a game last night, players asked if we were rolling too many 8s. Engineer friend used Excel, I wrote probability table

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Audacious Parking dot com http://twitpic.com/3qkqrq

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In reply to @brittneybean

@brittneybean sort of not-quite-great film though

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In reply to @brittneybean

@brittneybean it's worth watching, but wasn't as amazing as the title

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why does an image search for "not surprised" give so many results of young people at parties?

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what a nice girl on the phones at Domino's. What a pity there's no way I can sound attractive calling up at 5.30 for a single pizza

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In reply to @TeXtip

@TeXtip if that's in reference to multi-part function definitions, MathJax supports all of amsmath, including \cases

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javascript's console.log can substitute parameters like printf. Sitar music is playing as my mind opens up to a new world

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In reply to @Bishnavitch

@Bishnavitch that is a cracker of a joke

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I want to buy a coin sorter. 99% of hits are the same electronic one with different brands. Surely there don't need to be any moving parts?

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In reply to @Bishnavitch

@Bishnavitch videos soon?

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In reply to @Gelada

@Gelada oh, to be in a department with money to fritter on "decoration" and "walls"...

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Ana Tijoux: pretty good!

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TEAM MEMO: Pick your new nickname from here http://blogs.villagevoice.com/runninscared/2011/01/the_20_best_nic.php cp is now "Tony Bagels"

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how is the Wikipedia page on Loci so short? http://en.wikipedia.org/wiki/Locus_(mathematics)

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In reply to @HoeJodgkiss

@HoeJodgkiss oh no I've just realised orangutans don't even exist in India

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In reply to @aperfect

@aperfect mudlarking on the thames sand banks http://www.walks.com/Homepage/Beachcombing_Walks/default.aspx

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In reply to @Bishnavitch

@Bishnavitch it's more of an art project than a joke, but no they're not serious

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Monday: meetings. Tuesday-Wednesday-Thursday: Maths-Aid; xbox. Friday: clean house. Oh no I have a routine!

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In reply to @aperfect

@aperfect too late for mudlarking, you fool!

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is there a site like the Hype Machine that doesn't consist solely of remixes and Kanye West-alikes?

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In reply to @aperfect

@aperfect oh no, too many rough surfaces. Graze City. LEAVE YOUR HOUSE

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In reply to @HilariousCow

@HilariousCow What's wrong with the DLR? Do you have bankerphobia?

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The mario tune is so good; how come it wasn't composed before? cf Uptown Girl uses Mozart melody http://www.youtube.com/watch?v=cXjsoZG9mxQ

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In reply to @HoeJodgkiss

@HoeJodgkiss now whenever you cross a border it'll look like your life has taken a turn for the worse, all tie and shirtless.

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In reply to @PickfordBros

@MagBilliardsDev is that just on the last table or on all of them?

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In reply to @mathshistory

@mathshistory in the past two days I've learnt about two mathematicians born within a couple of miles of me! Let's hope this rate keeps up

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In reply to @kenfodder

@kenfodder happy birthday! I hope Adam has done something nice for you

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This bad music album I downloaded yesterday seems to have transmogrified into a good music album overnight

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In reply to @beefok

@beefok very possibly. Level 3 was ruthless

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since when does it take 48 hours for an undelivered parcel to get back to the sorting office?

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maths teachers: is there somewhere a short list of topics covered in the most popular A-Level Maths & Further Maths modules?

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In reply to @shin_splintss

@MalloryJenkins can I ask who you meant to @ mention there? I get loads of people accidentally typing my username

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In reply to @mathshistory

@mathshistory the twitter experiment is going very well, thank you

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a three-day experiment in broadcasting field recordings, sounds, etc. (it's the most pretentious thing, be warned) http://ustre.am/sVCP !

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In reply to @mathshistory

@mathshistory euff, you've already made me join the IMA! Maybe I will join one when the other runs out

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In reply to @shin_splintss

@MalloryJenkins I live nowhere near there. I'm in the north of England. I wonder why my tweets are showing up in CA

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In reply to @for_the_winn

@for_the_winn when did you join twitter? I've just noticed I'm not following you!

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In the alternate universe where everybody is an artist, what does Mr Spock say when he wakes up?

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In reply to @stewartandco

@stewartandco I have to walk up northumberland street to get to work but I always forget you're at the library and miss out on tasty food :(

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In reply to @Gelada

@Gelada gospel truth

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In reply to @brittneybean

@brittneybean every time you use t.co to shorten a url I think of this: http://www.youtube.com/watch?v=lEr-AKJr-LI

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aaaahhhhh when did nurse jackie series 2 start?

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February

In reply to @standupmaths

@standupmaths so jealous. Our maths building is being recladded with boring squares

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In the emptiest cinema watching everyone's third choice film.

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what is even the point in finish-in-the-oven baguettes? I have yet to succesfully slice one in half and fit my lunch in

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If the people upstairs just put their shoes on at the front door instead of in the bedroom I could sleep in for another hour each day

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Sat on a train driving on the right hand side. Everything about this is wrong. Expect to start walking on the ceiling soon

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what's the maximum number of wiggly things I should tolerate making their ablutions in the shower with me? Today two wigglies and a spider

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In reply to @rockhyrax

@rockhyrax no such pity from CP. At this moment they are probably somewhere out in the North Sea.

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it's possible that I love mozzarella too much

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how is this even a niche? http://butchesholdinganimals.tumblr.com/archive

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play asteroids in a hyperbolic space (actually interesting!) http://www.paradise.caltech.edu/~cook/Workshop/Java/SpaceJewels/main.html

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In reply to @aperfect

@aperfect indeed!

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Dear Diary, What a lovely day I've had!

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In reply to @aperfect

@aperfect a case of the Hong Kong SoHo phenomenon, I'd wager

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I'm such an avant-garde hipster I've decided to become an inventor so the things I do now become obsolete, and I can then do them ironically

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I'm going to open a kilt shop called Knick-Knack-Plaidy-Whack

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do green and brown go together?

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In reply to @HilariousCow

@HilariousCow can you draw a picture of what shape the input looks like, or can I test this with an xbox controller plugged in a PC?

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In reply to @HilariousCow

@HilariousCow looks like +-30 degrees clips to a line. Here's bmax code http://tinyurl.com/6lctwt7 and a demo http://tinyurl.com/5vbvbpm

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In reply to @theyellowstereo

@theyellowstereo what kind of thing would you cover?

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In reply to @theyellowstereo

@theyellowstereo should I have commented more? the daily/weekly graboid was my main source of good new music

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In reply to @theyellowstereo

@theyellowstereo and if you'd had ads which sometimes weren't for american apparel, I might've clicked them

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there goes another big bar of dairy milk

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scandalous! My campaign against mad facebook dating ads is just making them worse: "Find the 1 (or 2) at DateBridge"

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New mathem-o-blog post: A demo of the Numbas maths exam system. http://checkmyworking.com/?p=274

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for people who can finish the cryptic crossword before breakfast, the escorts advertising in the LRB Personals aren't very subtle

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In reply to @peterrowlett

@peterrowlett our professor of pure maths (Sarah Rees) uses a Tablet PC in lectures. Just Journal + lots of scrolling, I think.

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In reply to @gingerbeardman

@gingerbeardman do you have a copy of the monkey logo that I could use in my matrix multiplying monkeys example?

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In reply to @gingerbeardman

@gingerbeardman ehh, 400x400?

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applewood smoked cheddar in a jardine's kettle chilli con queso OH MAN

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New mathem-o-blog post: Not-quite-slides from a talk about Turing completeness (http://bit.ly/fqkdIh)

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In reply to @beefok

@beefok you say numbers and acronyms and I am impressed even thought I don't know what they mean

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newsjack is back! http://www.bbc.co.uk/iplayer/episode/b00yc08c/Newsjack_Series_4_7_Premiere/

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POWER YAAAAAAAAAAAAAAAAAAAAWN

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Very good meeting today, but now I have to get the metro at school kicking-out time, and then drive through the Tyne tunnel at rush hour :(

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The Romanian restaurateurs' association invites you to "Bucharest, Buchatable"

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my Drink Stiffness Preference is edging up; currently at "2-ply cardboard" -- double measures of squash; five scoops of hot choc

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hid the dog's toy in a really good place. He is more stumped than the combined English cricket teams of the 1990s

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I love Germany and Germans http://www.youtube.com/watch?v=4_06qrFnvnw

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In reply to @ColinTheMathmo

@ColinTheMathmo does the proof of that involve numbers mod 4? I'm just a group theorist, proper numbers hurt my head

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In reply to @ColinTheMathmo

@ColinTheMathmo jolly good, I've got it right then. I'm not a good group theorist, but know some. What's your problem?

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In reply to @JanvierUK

@JSlayerUK mmmmmmmmmmmmyes

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In reply to @stewartandco

@stewartandco can you remember the name of the supplier of those cumberland pasties you used to sell back when you first opened?

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In reply to @ColinTheMathmo

@ColinTheMathmo sounds like perfect MathOverflow fodder. I'll check my many books for a "simple" theorem

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In reply to @ColinTheMathmo

@ColinTheMathmo in fact, there's this question, whose answers tend towards applications of group theory http://bit.ly/hRFYGx

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ok, what do I have to do to become a German? http://bit.ly/gTM3Bj (loads more at http://bit.ly/gx2vqb )

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In reply to @standupmaths

@standupmaths a feat that Wolfram|Alpha would very likely be capable of

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In reply to @brittneybean

@brittneybean yes but a boring maths one and we have no money

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basically, I acquire jazz albums as and when great jazzmen die

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There's taking an early night and then there's whatever this is. Night night world, see you next week.

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In reply to @aperfect

@aperfect you're not in one of those converted railway carriage indian restaurants, are you? Are you eating poppadums?

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New mathem-o-blog post: Hardy’s Course of Pure Mathematics (http://checkmyworking.com/?p=281)

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Sitting by the window in a cafe, eating a pain au chocolat and scowling at passers-by

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both starters and puds AND flatbread cafe have closed?! Where will I go for yummy yum yums now?

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In reply to @Electrokittie

@Electrokittie I know - Bourgeois Problems, right?

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People are wearing some bold skirts today. I approve.

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In reply to @peterrowlett

@peterrowlett what would helping involve?

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In reply to @peterrowlett

@peterrowlett ok, I think I can do that. It sounds interesting

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I have done nothing useful today twitpic.com/40hd2d

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In reply to @gingerbeardman

@gingerbeardman correct. Aka Loopy in Simon tatham's portable puzzle collection

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@DrMathS you mean sum of its digits is equal to sum of digits of its distinct prime factors?

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Wallpaper/mood synchronicity twitpic.com/40uk96

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In reply to @mathshistory

@mathshistory or if you feel like reading ~500 pages on the topic, Cajori's History of Mathematical Notations http://bit.ly/fwT3T8

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need a wee need a wee need a wee on a train need a wee

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In reply to @GreyAlien

@GreyAlien I'm doing the same with my little brother. Currently we're having a ziggurat competition

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how do I arrange it so this is the first thing I see every morning? http://www.youtube.com/watch?v=rHo6qWxoDOQ

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internet explorer is bad at what it does

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NTFS is bad at what it does (no. 2 in a series)

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Arrrg! I had two hours in hand, now going to arrive at the station with like 90 seconds to spare

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Couldn't find anywhere good to get fast food near Nottingham station. So hungry

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using my boss's office for the afternoon. I'm living the American Dream

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sour cream and chive dip builds healthy bones. Is that right?

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In reply to @Gelada

@Gelada I saw this and it reminded me of you - inflatable almost-geodesic frame for a tent http://heimplanet.com/produkte/the-cave/grid/#

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would you like some nice music to go with today's nice weather? Paris Jazz Piano by Michel Legrand - http://bit.ly/g47lFe

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Dear Outlook Web Access, it's no good saving a draft of my email if the only time you do that is at the start when the page is blank

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In reply to @kenfodder

@kenfodder ssh! That was going to be my follow-up tweet

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I'm eating waitrose's least inspiring ready meal twitpic.com/43bi1a

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In reply to @alexbellos

@alexbellos was perelman in the news before or after twitter appeared?

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In reply to @aperfect

@aperfect that's, like, yourself's opinion, man

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yum yum yum tyrrell's salt and vinegar crisps yum

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In reply to @Electrokittie

@Electrokittie I made that tweet a lot more cheery in my mind by adding a comma!

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brilliant sculptures by a Mr Euclide http://bit.ly/ghbZO4

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In reply to @HoeJodgkiss

@HoeJodgkiss if I had a squid for every time I've heard a bad sealife pun...

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In reply to @HoeJodgkiss

@HoeJodgkiss michael jackson bad, not bad bad

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Home made bhajis. They were unexpectedly tasty! twitpic.com/442sb7

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my brilliant plan to make dinner from scratch might have actually been a bad plan. I'm still cooking at 9.30

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Mmhmm that is right. Yep. twitpic.com/443uy7

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why don't worker insects of the famly Formicidae float? Because they're not boy-ant!

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In reply to @peterrowlett

@peterrowlett yep, I assume it's about something I can answer

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In reply to @badmachinery

@badmachinery call me a glory seeker, but I support Generic Team in Red. All my favourite brands of beer, car, cleaning product support them

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In reply to @HilariousCow

@HilariousCow unity hates my browser, but is that like my james-bond-goon idea with points for shooting wide and hamming up your death?

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I assume the atom symbol on the bottom of my tupperware means it's microwave-safe, not gamma ray-safe

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lovely horsey clip clop http://bit.ly/fUEpGh

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March

In reply to @mattypsmith

@mattybeardsmith omnipresence

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is "every human born has the same number of children" a sufficient condition for evloution stopping? Trying to parse this awful BBC piece

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In reply to @peterrowlett

@peterrowlett hah, I still haven't thought of any examples in newcastle since you came up

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In reply to @mathshistory

@mathshistory @mathsinthecity that's a very sparse biography. The village I grew up in can do better, per capita!

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In reply to @Electrokittie

@Electrokittie plenty of Indians called De Souza in Goa

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look, a chicken made of eggs http://bit.ly/e1M8zO

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Solidarity is Illusion: The Political Economy of My Little Pony: Friendship is Magic http://bit.ly/g6t93D

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In reply to @Gelada

@Gelada banach-tarski says nothing about pairs of elements remaining next to each other, so the result will be very messy indeed

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if Goldbach's conjecture is true but unprovable then it is impossible to correctly round down (in floating point) 0.5 + 10-n for certain n

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In reply to @Gelada

@Gelada I always prefer an impossibility theorem to an attempted proof

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In reply to @Gelada

@Gelada brill! have you seen this? http://bit.ly/hcbbN0

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why does the Erdos number project say there are *currently* 511 people with Erdos no. 1?

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seriously though theatre royal, I don't need to be emailed every single day about Blood Brothers.

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In reply to @Bishnavitch

@Bishnavitch are you up and about again then?

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someone please explain the plot of The Illusionist in a way that doesn't make me sad. I need a hug now

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I have woken up with Minnie Driver's awful rendition of "Stand By Your Man" from Goldeneye in my head.

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why is there a rule that people listening to the radio during daytime have awful musical taste?

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In reply to @Electrokittie

@Electrokittie you tell 'em!

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In reply to @JanvierUK

@JSlayerUK why do you have to live down south? I want tasty cake

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In reply to @brittneybean

@brittneybean having children with Liam Neeson would be ok though?

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I've decided to write an email to a radio phone-in show in case they ever do a show about premonitions

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My mutant gene has reactivated, so once more I have shed my normal human skin and become one of the Ecze-Men.

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In reply to @JanvierUK

@JSlayerUK imagine the state we'd be in if they knew what they were doing!

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Left my laptop charger at my mum's, so forced to use old PCs. Bricked one installing ubuntu, the other can't keep up with me writing email

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I'd like to play a good game about King Arthur.

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v disappointed about the lack of enthusiasm for my FS Pop Shrove It event on facebook. That is a *golden* pun!

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In reply to @rockhyrax

@rockhyrax I defy you to find this cute

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In reply to @rockhyrax

@rockhyrax would help if I pasted the link! http://cuteoverload.com/2011/03/05/they-call-me/

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going to open a poets' retreat called the Scansion Mansion

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In reply to @brittneybean

@brittneybean oh no that makes sense am I a pretentious ponce?

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I'm very pleased with what I have made: http://somethingorotherwhatever.com/monkey/circles/

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In reply to @alexbellos

@alexbellos oh bravo! Well done indeed!

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In reply to @brittneybean

@brittneybean there are never more than 3 dogs barking at once in Portsmouth.

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In reply to @brittneybean

@brittneybean every bottle of malt vinegar produced in the UK travels through Portsmouth at least once before being sold

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In reply to @brittneybean

@brittneybean a 1997 study showed that standup comics' jokes were 19% more likely to fall flat in Portsmouth clubs, compared to the UK avg.

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SO WINDY

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Fact: the French say 'formidable' because of a 13thC. satanist cult which believed the devil was an ant who tempted peasants with sweet jams

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Fact cont.: 'formidable' is an abbreviation of the exclamation, 'ce succès goût mieux que votre plus douce confiture, fourmi diable'

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In reply to @peterrowlett

@peterrowlett I think you need to book in a stay at the Scansion Mansion

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In reply to @decaf_unicorn

@fumbleweeds please explain that, or post pictures. They sound delicious

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when did I download all this synthpop? I don't even like synthpop.

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In reply to @decaf_unicorn

@fumbleweeds oh wow! That did not fail to deliver

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Five fresh fish to whoever can sort out my blog-gone-crazy situation.

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In reply to @standupmaths

@standupmaths and with just enough 1s to represent the classic mersenne primes!

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plastics fact: on TS Eliot's death, it was revealed that for 13 years he had been talking to Dow about becoming the public face of Styrofoam

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the letters Eliot left behind indicated that Dow were open to the idea, but unsure why the 20th century's greatest poet wanted the role

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twitter fact: there's nothing on the twitter page telling you to stop posting nonsense when you're bored.

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In reply to @rockhyrax

@rockhyrax noted. I think i can see the ear, but that only makes one piglet

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON that's enough for a mighty cerf and terf!

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In reply to @peterrowlett

@peterrowlett this week I proved that all finitely generated groups are computable on the third level of the Grzegorczyk hierarchy

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In reply to @peterrowlett

@peterrowlett more interestingly, I'm on my way into maker faire uk. Zometool should be there and hopefully more maths stuff. I'll take pics

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A hand-cranked Turing machine at #mfuk twitpic.com/494wsl

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it's emusicsmas, and I've found no good new music. I'm just going to listen to Thomas Tantrum again instead.

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my hair is at the awful intermediate "sticky outy all over this place" stage, meaning I now look as fashionable as I feel

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Serious question: what's the most foggy it can be? I wouldn't like it to be more foggy than it is

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Priscilla Ahn has such a lovely voice

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In reply to @ColinTheMathmo

@ColinTheMathmo and you have to go all the way up to 73! to get an exact number of years

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In reply to @ColinTheMathmo

@ColinTheMathmo that reminds me: the best group theory my supervisor and I could think of is fundamental groups of topological spaces

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In reply to @GreyAlien

@GreyAlien true that

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Poetry from my phone's predictive text: Je vous remercie pour vos réponses, and I will not have a lot.

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wow wow wowee! Interactive geometry in html with jsxgraph http://remember2015.info/labs/chalkboard/page/Geometry.html

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In reply to @MarcusduSautoy

@MarcusduSautoy while you're here, can you see if you can spot any Maths in the City? I think Newcastle is mathematically uninteresting

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In reply to @MarcusduSautoy

@MarcusduSautoy but not in Newcastle!

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In reply to @MarcusduSautoy

@MarcusduSautoy ok, you can have that, but it was a Gateshead project...

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In reply to @MarcusduSautoy

@MarcusduSautoy I've thought of a Newcastle maths fact! The Newcastle Metro line is topologically unique - it's pretzel-shaped

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In reply to @HoeJodgkiss

@HoeJodgkiss something something the George Foreman Grill of the jury failed to reach a decision

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In reply to @HoeJodgkiss

@HoeJodgkiss what did the boson say to the quark? "You really know how to turn on the charm!"

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"doeth represent the square of squares squaredly" - definition of zenzizenzizenzic, or my uni election Nerd Party campaign slogan?

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In reply to @HoeJodgkiss

#terriblephysicspuns @HoeJodgkiss why did poor Einstein move out of his student digs? Lorentz was too high

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In reply to @HoeJodgkiss

@HoeJodgkiss oh well done! Well done indeed

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In reply to @Alternativemeat

@Alternativemeat oh wow, I will definitely have some of that if I see it

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In reply to @peterrowlett

@peterrowlett the way I thought about it was, what do I want my descendants in the 22nd century to think I did?

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Christian Perfect is Pro-Chive.

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In reply to @peterrowlett

@peterrowlett my blog has trouble staying extant from one week to the next; I don't think it'll remain part of the historical record

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In reply to @standupmaths

@standupmaths @jamesgrime I think I've got it - Var(sum K rolls) grows with K, so move up then down is more likely than move down then up

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In reply to @standupmaths

@standupmaths what about my million runs? http://bit.ly/eFxoio

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It's finally happened. My water bottle emptied itself into my backpack. Smell very strongly of blackcurrant now

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Is Ribena's company newsletter called the Blackcourant?

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Red top, white denim skirt, black tights. This girl has managed to wear a colour combo that even my colourblind eyes find offensive

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In reply to @standupmaths

@standupmaths as ever, there's a Dinosaur Comic on that subject: http://www.qwantz.com/index.php?comic=669

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In reply to @aperfect

@aperfect they're doing WHAT

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going to say something rude in binary through the medium of socks over the course of the next year. Matching = 1, different = 0.

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In reply to @standupmaths

@standupmaths Two Dots by Lusine

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In reply to @brittneybean

@brittneybean it's just like a civic centre. Don't get your hopes up

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In reply to @brittneybean

@brittneybean looks like a regular maths seminar to me

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the estate agent claims this street is "predestionised"

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In reply to @ColinTheMathmo

@ColinTheMathmo but are they recursively enumerable?

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In reply to @ColinTheMathmo

@ColinTheMathmo can you send me a link to the paper? It is, outrageously, missing from my Interesting Esoterica collection

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In reply to @ColinTheMathmo

@ColinTheMathmo don't worry about it. I assumed there'd be something to go with all that press however many years ago

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Arrived early for a conference, so trying to take as long as possible to find maths building without leaving the campus. Algorithms please.

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Durham have art on their walls! That's it, I'm going to pester the head of school

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In reply to @peterrowlett

@peterrowlett @Gelada i'd love to, but it's a matter of funding!

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What a pleasant day! Do I have time for a trip to the seaside OH WAIT I'M ALREADY THERE MY LIFE IS PERFECT

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This dude can barely walk, how does he intend to tennis? Tennising is for runalarks and jumpscotches, not fogular old men

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In reply to @Gelada

@Gelada I'll try, but I think even getting a tenner out of a UK maths department for anything discretionary would be difficult at the moment

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In reply to @Gelada

@Gelada do you have a complete portfolio with, for example, the thing you did for Imperial?

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In reply to @Gelada

@Gelada I've considered a maths art competition for us postgrads just to get *something* on the walls, but I don't think it would succeed

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today I vastly overestimated the number of Germans

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In reply to @Bishnavitch

@Bishnavitch @HoeJodgkiss the rise and fall and rise again of reginald perrin

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In reply to @Bishnavitch

@Bishnavitch does reggie perrin count as highbrow?

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In reply to @Bishnavitch

@Bishnavitch @HoeJodgkiss I know what you did to the likely lads

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In reply to @divbyzero

@divbyzero and now neither can I! Time to start a geocities page about how that face is proof of the lizardmen or something

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In reply to @divbyzero

@divbyzero or the arrow in the fedex logo.

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is the theory of tensegrity structures changed much by replacing the string with something which can only expand?

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what does this even mean? it looks like maths words placed at random http://en.wikipedia.org/wiki/Gordon_Pask#Interactions_of_Actors_Theory

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In reply to @HoeJodgkiss

@HoeJodgkiss moustaches normally signal an intent to start digging for oil. Watch him like a hawk; the Marines can't be far behind

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In reply to @brittneybean

@brittneybean but BE broadband already exists, so why bother?

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In reply to @brittneybean

@brittneybean you're getting into Cryptonomicon territory now.

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In reply to @brittneybean

@brittneybean GOOD DECISION

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In reply to @peterrowlett

@peterrowlett I'm still available. Might be a couple of minutes late, depending on how quickly I can get rid of my tutee

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I've decided I need to whittle this stick of chalk. Am I doing it wrong, or is Crayola?

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In reply to @Electrokittie

@Electrokittie outrage!

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mathetists, students who use maths, etcetera: I'm going to record lots of short "how-to" videos soon for maths-aid. What topics should I do?

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Not sure I've got the energy. Taking solace in my beard, it's nice and fluffy today

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Posh lady on the metro is fascinated by the middle distance to avoid making eye contact with plebs. Herculean effort, she hasn't blinked yet

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Resent twitter truncating my thoughts. We didn't fight a string of Louis and Napoleons so froggy 'wit' could win out over anglo-saxon jokery

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this girl is flouncing in bursts towards her destination. Where is it, and why is it intermittently important that she gets there quickly?

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In reply to @standupmaths

@standupmaths @skhxs I'd go one better and say category theory

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In reply to @standupmaths

@standupmaths specific in that it applies to everything, yes! I'm not one of those category nuts, but it's def the most abstract you can get

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does anyone know of a tool that will detect a big black quadrilateral in an image and transform it to a rectangle? Note: OpenCV hates me

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In reply to @standupmaths

@standupmaths in the category of maths topics under 'pureness' order, category theory is a limit

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I love soft mud. I think it's the best. I think it's tops. Tops soil.

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In reply to @brittneybean

@brittneybean because dollars are green?

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In reply to @CutTheKnotMath

@CutTheKnotMath simon singh did the same sort of thingh with katie melua's "nine million bicycles": http://bit.ly/22o4v1

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I've wasted the last couple of hours uploading a video to flickr, because I forgot they can only be 90 seconds long. Whoops.

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I've gazumped @Gelada and recorded a video for @elinoroberts explaining the Slinky klein bottle http://vimeo.com/nclmaths/kleinslinky

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In reply to @Gelada

@Gelada no I hadn't heard of it before, and it seems Google hasn't either. It's a very good idea!

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arco.sh is available and would be the ultimate cool maths domain name, but is it worth £60?

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In reply to @peterrowlett

@peterrowlett that page gives me a 403 forbidden message

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In reply to @Gelada

@Gelada I'll add you to the description on the vimeo page as well

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FANTASTIC game: http://www.foddy.net/GIRP.html

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who do I know along this route? http://bit.ly/albionmyway I'm planning my summer holiday

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In reply to @CutTheKnotMath

@CutTheKnotMath Dare I make a pedantic correction? It's "a priori"

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In reply to @divbyzero

@divbyzero I tried my hardest, but I couldn't resist using wolfram: http://mathworld.wolfram.com/LambertW-Function.html

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In reply to @divbyzero

@divbyzero I'm not saying that's the shape of the curve, it clearly isn't, but it's involved

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music people: what's the point of putting songs on the radio before the album's out? I'll have forgotten about it by the time I can buy it

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In reply to @brittneybean

@brittneybean well then, clearly the radio I am listening to is too avant-garde. I suppose with "Radio Nova" the clue's in the name

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In reply to @ColinTheMathmo

@ColinTheMathmo *observations* of random variables aren't random or variable.

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In reply to @aperfect

@aperfect I can't either

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Having great fun watching builders put a scaffoldy ladder together

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Now playing: g-swing - cement mixer

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In reply to @badmachinery

@badmachinery I've had mine for a good while with no case and I haven't scratched it yet.

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This girl's guide dog is so over quiet study time

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It's always a nice day in Bhitley Way.

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When it rains in Bhitley Way, the mayor reimburses visitors for lost time.

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Bhitley Way fact: Bhitley Way has produced more Nobel laureates than any other seaside town

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In reply to @peterrowlett

@peterrowlett thanks for mentioning my video. I have a budget for producing more (properly made) videos, so suggestions for topics welcome

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In reply to @mountain_ghosts

@jcoglan please do

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In reply to @mountain_ghosts

@jcoglan interpreting, I reckon

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charver girls dressing in gilets and ugg boots, following a cargo cult look book which is a grotesque reflection of last year's fashions

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In reply to @peterrowlett

@peterrowlett one of our techy lecturers has been using one for a while. He says it's OK, but you obviously miss out all the handwaving etc.

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Zizzi's caesar salad is a slap in the face

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April

Royal Mail, it's 7.30! Why are all your vans still at the depot?

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In reply to @CutTheKnotMath

@CutTheKnotMath would you consider moving to jsxgraph for your geometry interactives? It's all HTML, so you wouldn't need a java plugin

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In reply to @alexbellos

@alexbellos oh no! Now I'm aware of it but only in a superficial way. Tweet a Mathematics Awareness Month information tweet

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In reply to @peterrowlett

@peterrowlett I'm sure you can have fun with www.gaussfacts.com

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In reply to @mattypsmith

@mattybeardsmith it's a fixy?

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In reply to @JanvierUK

@JSlayerUK go get 'em, champ!

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In reply to @JanvierUK

@JSlayerUK I wish to see this video blog please

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In reply to @badmachinery

@badmachinery I think it would go well on some classy stationery.

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does anyone want to live with me in Tynemouth? Finding a singleton flat is hard

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Dog looks like a goat. Goat looks like a dog. Doat gog.

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In reply to @gingerbeardman

@gingerbeardman it looks much less friendly than before. What's the thinking?

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In reply to @peterrowlett

@peterrowlett should I repeat my comments?

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in the video for "Lights", we are asked to contemplate a universe where a hip-shaking Ellie Goulding is all that exists, raising ...

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... questions about how much of the world we as humans are trying to create is truly necessary for us to enjoy our lives

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<span class="classnamehere" onclick="create-link(...
poor show, National Trust!

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This toddler is wearing some extremely stylish glasses. Classiest person in Eldon square by far

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In reply to @My_Metro

@My_Metro what on earth is that smell hanging around monument platform 3/4?

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In reply to @MarcusduSautoy

@MarcusduSautoy @mathsinthecity isn't it more cylindrical? I assume you mean the roof; the inside is complicated.

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I like attending meetings where everyone tells me how brilliant I am

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In reply to @elinoroberts

@elinoroberts then the first thing you'll want to do is install an app like SMS Backup, if it's that kind of phone

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In reply to @mathpunk

@mathpunk @busynessgirl this is fantastic, if a bit flakey: http://remember2015.info/labs/chalkboard/page/Geometry.html

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Geordie Dave is brushing up on his Euclid before going looking for some @mathsinthecity in Newcastle twitpic.com/4h9si0

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In reply to @aperfect

@aperfect it's awfully clever though

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In reply to @mathsinthecity

@mathsinthecity I can't see how to post in that thread. I'm logged in, but there's no link or input box.

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@DrMathS did your maths walk with Robin visit the Quayside? I'm going to do something on the bridge and sage for @mathsinthecity, any ideas?

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In reply to @aperfect

@aperfect THUNDERBOLT!

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In reply to @brittneybean

@brittneybean you think that's bad? As a mathematician, I can enumerate an infinite amount of maths I'll never be able to prove.

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First rule of Commuter Club: don't bring toast on to the train unless you have enough for everyone

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well, I have literally nothing else to do; time to type up those corollaries, then

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aaaaaaaaaaaaaaaaaaah wordpress backup lost all the backslashes in my LaTeX! This is going to take ages!

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In reply to @JanvierUK

@JSlayerUK because the Exchequer is so resolutely fair.

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I can't get to sleep. I have things to do early tomorrow; this is not the right time for my head to start worrying about the universe

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In reply to @badmachinery

@badmachinery I'm telling you, stationery's the way forward. I'd love a whimsical lever arch, and some groovy document wallets to go with it

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In reply to @gingerbeardman

@gingerbeardman the singer is now recording as A Camp

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oh no, the designers have discovered group theory! http://bit.ly/gKJWz1 shot not on writing the pop-math book

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In reply to @charliesgames

@charliesgames BRILL

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In reply to @aperfect

@aperfect you retweeted that to annoy me, didn't you?

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In reply to @brittneybean

@brittneybean I just bought a pair of Sennheiser MM100. Very good sound quality, so those must be at least as good

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In reply to @brittneybean

@brittneybean yeah, the ones I got are bluetooth

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Jetzt fuehle ich Lieblingspullitragenzufriedenheit

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Train will arrive in 2 minutes. Song is 2 minutes long. Problem: train is taking too long. Solution: skip song. Doyyyy

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Eccentric man doing his stretches on the train. Middle-aged man with Down's syndrome highly amused. #lifesrichtapestry

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Just answered the phone to a very excited nana who realised today's date is a palindrome. Blew her mind with 12/3/21. Something to aim for!

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In reply to @jefferickson

@jefferickson and my supervisor takes such a stern line against frivolous language in papers...

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In reply to @mathsinthecity

@mathsinthecity today isn't 12/3/21, it's 11/4/11!

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In reply to @aperfect

@aperfect oh don't you start

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In reply to @My_Metro

@My_Metro if I wanted to get on the metro at St James and stay on until it got back to St James again, would I need a single or a daysaver?

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In reply to @mathsinthecity

@mathsinthecity it wouldn't be much work for you to implement MathJax for nice LaTeX display: http://www.mathjax.org

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In reply to @mathsinthecity

@mathsinthecity (it's screen-readable, cross-browser, scales, is the best thing to happen to mathematical typesetting since knuth himself)

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In reply to @My_Metro

@My_Metro it's for the @mathsinthecity compo, if you travel st james-coast-south shields-coast-st james you pass through monument four times

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In reply to @My_Metro

@My_Metro which is an interesting fact if you're a mathematician - T&W metro is unique in the world, topologically speaking

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@DrMathS before I add a separate site on maths in the city about the millennium bridge, would you consider letting me help on your one?

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calculator fans: Casio's keisan might be easier to use than wolfram alpha if you just want to compute something: http://keisan.casio.com/

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In reply to @My_Metro

@My_Metro thanks!

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In reply to @aperfect

@aperfect first google suggestion for "tea room in " is "tea room in richmond"

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In reply to @aperfect

@aperfect anyway: get thee to one of the many many tea rooms

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In reply to @mathsinthecity

@mathsinthecity I just listened! Like most NUFC stars, Geordie Dave has been linked with many transfer rumours, and you're not helping!

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do I know any spoddy model railway enthusiasts? Is curved track an arc, or does it include transitions? Sorry for calling you spoddy, btw

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video: trying out a gimmicky visual aid for the normal PDF: http://checkmyworking.com/?p=377

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In reply to @HilariousCow

@HilariousCow that's probably pretty much how I would describe a unicorn, if asked

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OH SNAP I just posted on a Name of the Year post with my real name. I've never felt this much regret, but deleting it would be cowardly.

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In reply to @GreyAlien

@GreyAlien how are you doing these translations? Machine, or outsourced?

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In reply to @Amy1306

@Amy1306 how weird that we had the same idea at the same time

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It's so windy I think my ears might fall off

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it is minimilk time

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In reply to @divbyzero

@divbyzero @RichardWiseman Scheme 2 is only better if the pay rises apply to different intervals.

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In reply to @divbyzero

@divbyzero @RichardWiseman by which I mean, I interpreted the $5 pay rise as paying $50, $52.50, $55, $57.50, ...

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it's 19:24. My hour-long reenactment of the 20th C isn't going well. I spent most of Jazz Age writing this tweet. Will eat dinner during WW2

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In reply to @mathpunk

@mathpunk have you been recommended that ahead of Mac Lane/Saunders?

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In reply to @mathpunk

@mathpunk I of course mean Mac Lane, whose first name is Saunders. Sheesh, what's the deal with last-name first-names?

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In reply to @fio_mo

@fio_mo look where I was at the weekend twitpic.com/4k91um

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On my way to an MMU Sigma Maths event. No idea what that entails.

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Have there been any more advances in the topic of whether I exist or not since 'Cogito ergo sum'?

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PS: is it bad that my existential crisis was resolved by going to twitter and talking about it?

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In reply to @brittneybean

@brittneybean yes! this is what I've been waiting for! 90s revival!! brb, off to buy super soakers

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The author can't stop finding maths in this picture! twitpic.com/4l2scg

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I am, how do they say, 'stoked' to be first on your FFs.

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Matilda is a lovely film

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Being unexpectedly edified by BBC Four

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I am a hobbit yes I yam twitpic.com/4m3gpg

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Decided I'm going to chuck in the maths and open a furniture shop called Ah Divan Knaa

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In reply to @pianomaths

@pianomaths what are you trying to prove?

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today I did 200g of chocolate and a bowl of chilli's worth of work. I know this because after eating I now feel like I did in the morning.

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In reply to @Gelada

@Gelada but 1,936 was the year Hitler reoccupied the Rhineland! So computers *must* be evil

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In reply to @Gelada

@Gelada well, a matter close to my heart is the death of King Edwin of Northumbria in that year. I don't think we ever recovered.

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In reply to @Gelada

@Gelada I'm now trying in vain to find that page which can link any number either to Hitler's birthday or the number of the Beast

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Today I learned about the awful world of proprietary bog roll spindles

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In reply to @trackinthebox

@trackinthebox I really like today's track.

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On my way to Leeds to talk about our #hestem project and promote Numbas

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON yeah! At least we had the decency to have our terror attacks on a palindromic date

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In reply to @plusmathsorg

@plusmathsorg it's important to note that the contrapositive is not true, and that's the issue under discussion

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In reply to @Electrokittie

@Electrokittie retch. #yourtwittercopyeditor

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In reply to @mathsinthecity

@mathsinthecity I've suddenly got loads of real work to do, so can't spend much time finishing my Maths in the City entries. Frustrating!

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In reply to @aperfect

@aperfect London? More like LAMEdon amirite

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I'm on metrocar no. 4077. I think it's a completely uninteresting number; can anyone Ramanujan me? Difficulty: i've checked numbergossip.

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In reply to @Electrokittie

@Electrokittie so many FFs!

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In reply to @peterrowlett

@peterrowlett @fumbleweeds @_TheGeoff ok, I'm going to have to specify I want a *maths* fact.

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In reply to @JamesHowe1729

@JamesHowe1729 is there something more to that than it being slightly less than a power of two?

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Britain's weather Karma is being balanced out at Tynemouth twitpic.com/4o2a5d

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In reply to @watfordpete

@watfordpete that's my favourite one so far, thanks!

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In reply to @pianomaths

@pianomaths I like the dog

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Because I can never say no to a good palindrome, I'm going to have to open a taxidermy shop called Animal Lamina

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Radio 4's collection of programmes about mathematics: http://www.bbc.co.uk/radio4/collections/mathematics/

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my online maths testing/learning system, Numbas, is now free and open source on github: https://github.com/numbas/Numbas

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In reply to @trackinthebox

@trackinthebox some would say today's email mistakenly links to yesterday's track; others say it's karma highlighting how played out ELO are

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In reply to @brittneybean

@brittneybean get an android phone and there is one!

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Can't believe JJ has never seen a western. I honestly can't believe it.

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is there a website I can go to to click a button every time I decide not to respond to somebody trolling on the internet?

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In reply to @MarrsioFootball

@MarrsioFootball @alexbellos that system featured in Kim Stanley Robinson's Mars trilogy. It must be based on some theory; what's it called?

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I recommend Sunday Format - The Sunday Format http://bbc.in/jyNbUb

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this side of the street is definitely posher than the other one: there's an enormous German art delivery lorry rolling past my window

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It's Kurt Godel's birthday! A day to either do things badly or leave them unfinished. Thanks @mathshistory

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The Isoscelosaurus made many pointy reptiles extinct, which is why we are left only with bendy snakes twitpic.com/4qkwil

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a few of these would look nice in a maths department: http://www.grahamcaldwell.com/work_1.html HINT HINT HEAD OF SCHOOL

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In reply to @mathshistory

@mathshistory Godel, Poincare and Gauss born on consecutive days? I nominate this week to be International Hypergenius Week

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In reply to @mathshistory

@mathshistory and Euler was born in April too! International Hypergenius Month! Must make a note to conceive any children in July...

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In reply to @standupmaths

@standupmaths I just wait until the end and they show me the back of my head. Infinite reflections!

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This might be the single healthiest meal I've ever cooked myself twitpic.com/4rjq6b

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simultaneously a brilliant game and a good argument for quaternion rotations: http://www.youtube.com/watch?v=9wohFfpLU7s

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May

May Day! Are we keeping the red flag flying today, or is it still Union Jacks?

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Tesco houmous tastes like sick

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In reply to @TeXtip

@TeXtip but it only produces images, not @MathJax. Frustrating!

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In reply to @Electrokittie

@Electrokittie no _cool_ people are straight edge now it's not cool. My uncool straight edge lifestyle persists yet.

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In reply to @Electrokittie

@Electrokittie oh snap! I could've made a BRILLIANT compass and straight-edge quip!

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In reply to @mathsinthecity

@mathsinthecity my video man has failed to upload the video we recorded a month ago, so we won't meet the deadline. What a shame!

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In reply to @mathsinthecity

@mathsinthecity http://www.vimeo.com/23210477 though now I've seen it, I think it would be unfair to say I have "natural screen presence"...

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In reply to @alexbellos

@alexbellos gosh! I'm more impressed that there are marketing professors who know what prime numbers are, given the students I teach

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In reply to @alexbellos

@alexbellos not totally convinced people don't just prefer even numbers, and "numbers that are sums" is everything except 1.

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@nulibsage "Numbers Rule : The Vexing Mathematics of Democracy" is very apropos. Thanks for that link, I didn't know it existed

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@nulibsage would it be at all possible to have an RSS feed of that page?

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Landlady is ten minutes late for the flat inspection. Not impressed

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There's no hope for me now, have fallen in love with a girl in a call centre. So helpful! That is 100% attractive to me.

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In reply to @kenfodder

@kenfodder @aperfect no!! You can't have faster internet than me!

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In reply to @JanvierUK

@JSlayerUK what are your reasons for voting No?

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Inspired by @alexbellos, here's my maths music: http://bit.ly/la1enp + "Mathematics" by Mos Def not on spotify. I was sure I had more!

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I just glanced across the street and, for the first time in my life, thought "that's a cool bike!"

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My new bed is so good! I love bed.

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Is this one of those days? Just got into the office to correct my paper, 30 minutes before my supervision, and TeX has decided to crash.

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In reply to @peterrowlett

@peterrowlett could I possibly get a plug for now properly open-source e-learning system Numbas? http://ncl.ac.uk/math/numbas

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I recommend Special 1 TV http://bbc.in/lsOi6l

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Alan Turing passes the canine Turing test from beyond the grave: http://www.youtube.com/watch?v=q8DiOthAKek

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In reply to @pianomaths

@pianomaths it wasn't me, but I'd like it now I know about it

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In reply to @peterrowlett

@peterrowlett thanks for the plug! A++++ would ask to shill for me again. Next week you can post this, it's BRILL http://bit.ly/mCjgSj

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emusic thinks I only listen to trad jazz; last.fm is sure I only want to hear willowy female folk. Someone recommend me some real music!

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In reply to @elinoroberts

@elinoroberts why do you keep needing to spell ptolemy?

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New career choice. Going to open a home decorations shop in Barnsley called "It's Prim Up North"

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In reply to @maximusweb

@maximusweb what do I do there? The modules page is empty

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In reply to @Electrokittie

@Electrokittie calf-foal now, you'll be looking at other hoof-ful animals next, and then you colt be in veal trouble!

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Parampara curry mix is very tasty!

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where do people buy nice tall lamps from that isn't ikea?

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In reply to @mathsinthecity

@mathsinthecity a bit too sylvan for Casa CP. I have more of a 'soft soft soft' motif going on. Nothing too shiny, lots of warm upholstery

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In reply to @mathsinthecity

@mathsinthecity are you my personal shopper now?! Thanks for the suggestion. I think our BHS has closed, will have to wander round town.

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NO WAY a springer journal we actually have access to! Need to lie down.

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The new art in the tynemouth station footbridge is really good

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@DrMathS think so, but in French there are three - cinq, dix, cent.

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In reply to @GreyAlien

@GreyAlien well I could guess that much

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aaaaaaaaaaaaa BT! Don't just cancel my order without asking!

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In reply to @peterrowlett

@peterrowlett what are your favourite numbers or number facts? As you're so keen on number gossip

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In reply to @peterrowlett

@peterrowlett also, your nomination for least interesting number. I put forward 4077, most interesting fact: 4077=(5^3+3^3-1^3) *3^3

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In reply to @mathsinthecity

@mathsinthecity not sure you've parsed that correctly. I'm imagining preserves being strained through a sierpinski gasket

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TIL my landlady's real surname is not the one on my lease

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In reply to @peterrowlett

@peterrowlett also, just been told our department is only taking TWO new PhD students next year. Your thoughts on swingeing cuts?

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UK uni web admins: would it kill you to make /math and /maths point to the same place? @peterrowlett @Samuel_Hansen

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In reply to @Gelada

@Gelada what do you mean by "geometry code"?

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In reply to @standupmaths

@standupmaths I just tried it and it didn't work! (possibly related: next year I invented time travel)

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In reply to @standupmaths

@standupmaths as you've been so pedantic lately, I will too: I make it 35.03%, based on these birthday frequency data: http://bit.ly/lsJrRb

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In reply to @brittneybean

@brittneybean are they error-correcting codes? There's maths to assign codes so that typos can be automatically corrected. I can help if not

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In reply to @standupmaths

@standupmaths so could this be an "only guaranteed to be true once every 365.25 days" fact?

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In reply to @brittneybean

@brittneybean suppose assign 10 codes. Instead of 1,2,3,etc use several digits, so if user mistypes, can work out correct code automatically

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In reply to @brittneybean

@brittneybean the maths to show why it works is quite involved, but to implement is just a couple of lines of code

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Dear man who is clearly from the south: up here, it is not cool to walk out in front of traffic while talking on your phone. "Cheers, mate!"

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In reply to @Gelada

@Gelada there's www.gispython.org but I don't think I can do any better than CGAL. Maybe eukleides? There must be an API somewhere for that

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In reply to @Gelada

@Gelada it's probably best to ask @jefferickson

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In reply to @Gelada

@Gelada last one: http://www.partow.net/projects/fastgeo/index.html

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In reply to @jamesgrime

@jamesgrime @ColinTheMathmo @standupmaths http://on.fb.me/lheMHX a mutual friend of ours thinks the answer is 1

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In reply to @ColinTheMathmo

@ColinTheMathmo oh, it isn't important. I just wanted to spare her blushes as @jamesgrime feels so strongly equivocal about it all

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I have no fruit juice. I feel like I should be able to make some from things I have lying around the house

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In reply to @mountain_ghosts

@jcoglan edit the source and recompile gnome-do to not do that. #unhelpfulneckbeardadvice

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In reply to @mountain_ghosts

@jcoglan easy! use markov chains to generate advice, and solve captcha to post to twitter automatically #unhelpfulneckbeardadvice

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In reply to @MarcusduSautoy

@MarcusduSautoy did you skip zero digits? When you mentioned this last night, I thought maybe you'd memorised pi in ternary!

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sun glaring off laptop, but want to maximise light in room. Fix: arduino-controlled bayesian motorised blinds. #unhelpfulneckbeardadvice

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In reply to @standupmaths

@standupmaths alternative medicine's most awkward run-in with race issues since the arrest of radovan karadzic?

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This mallard is operating as a spotter for the chip-stealing seagulls. What does he get out of it?

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In reply to @mountain_ghosts

@jcoglan actually, I'd say the first fact would be good evidence for the second.

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In reply to @North_LightsNE

@kyeotv NINE years ago! And as we all know now, it turns out the Beatles trump all of Newcastle's cultural endeavours

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In reply to @pianomaths

@pianomaths don't worry, I once tutored a student for an entire year without knowing his name

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In reply to @mountain_ghosts

@jcoglan I think I could take care of it. The reason I found you was I needed a Javascript maths library for my online maths exam system.

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BT's least enthusiastic engineer has come to fix my phone line. Will update if he tries to resign or run away before finishing

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen when will math/maths have a comments section? I have more than 140 characters of opinions!

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In reply to @aperfect

@aperfect sometimes I think I was the only person who could do more damage with the chaingun than the discgun+grenades

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In reply to @dickinsonjade

@dickinsonjade @standupmaths so blowing a raspberry after inhaling helium shouldn't sound any more silly than it already does?

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someone just posted a graph theory text on svpply. I don't know what to think. Is maths cool now?

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deeply regret telling my boss how to file issues on our github repository.

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In reply to @Electrokittie

@Electrokittie or, that Tumblr is an excellent medium for seeing more of them

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dear last.fm: I don't want to hear any more music with ouds in or anything by italian film composers for a while. What makes you think I do?

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Sheila Sheen seeing what she can see on the sea; each o' Misha Nietzsche's shisha creature features reaches 'er teacher's beaches in pieces

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In reply to @brittneybean

@brittneybean bon iver's voice sounds too much like what beaker from the muppets thinks he's saying. Bonus points for Gregory Euclide though

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I'm not just reacting badly to new things, am I? Ubuntu Unity really is awful and less than a tiny fraction complete, isn't it?

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In reply to @alexbellos

@alexbellos that is an ace cover! I hope one day to be surfing an abacus floating in a space populated by groovy polyhedra

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In reply to @kenfodder

@kenfodder that must be Art!

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In reply to @brittneybean

@brittneybean was my email about error-correcting codes any use?

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All hail Chunamayo, king of the sandwiches!

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my stomach is doing laps of the Hungeroring. Can't wait until my co-pizzaist gets here so I can order

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In reply to @aperfect

@aperfect AAAA CRUMBS I NEED TO SEND YOU A BIRTHDAY CARD STAT

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I love knights. All saving fair maidens and bedecking their horses with crenellated linens. Excellent.

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windows-using mathmos: what do you write your TeX in? TeXnicCenter is bloated; Vim is fiddly and doesn't SyncTeX; TexWorks is awful to use.

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In reply to @ColinTGraham

@ColinTGraham but miktex uses texworks? I'm talking about editors. I already use miktex to provide the command-line tools

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A real rag-and-bone man just drove up the street playing the Steptoe and Son theme. There is a man not ashamed of what he does.

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In reply to @ColinTGraham

@ColinTGraham I've been using texmaker recently. It's not very good as an editor, but it does do synctex properly

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In reply to @ColinTheMathmo

@ColinTheMathmo I don't know, but you should enable MathJax - http://www.mathjax.org

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In reply to @rockhyrax

@rockhyrax if that's the case, this dude had gone beyond the call of duty - he was driving a pickup full of scrap metal

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In reply to @peterrowlett

@peterrowlett @jamesgrime @stecks there's a woman with the right ideas! It's perfectly acceptable to have a favourite number.

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Could anyone who finds themselves at chilly road metro going towards town please take a picture of the sums on the wall next to the stairs?

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON those are competing aims - if we were less polite to each other, we'd be more self conscious!

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In reply to @duncanmaciver

@duncanmaciver was yesterday's Numbas presentation helpful?

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In reply to @duncanmaciver

@duncanmaciver yeah, I have to concentrate most of my efforts on maths assessment. What subjects are you interested in?

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The tk maxx in team valley only has like two racks of men's clothes. I can't even waste time amongst such a paucity

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In reply to @duncanmaciver

@duncanmaciver ok. We've done some stuff for our business school in the past. Mainly numerical stuff, obviously, but Numbas does do MCQs...

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Just had an inception dream because I'm so tired I fell asleep while I was asleep

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Just got this in the post. Not going to open it. twitpic.com/50znod

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In reply to @peterrowlett

@peterrowlett happy birthday, whenever it was! The video amused me

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has anyone ever written a limerick in the first-person?

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Advert: "the new home kit is black and white." Yes, that's just about all you can say for it.

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In reply to @JanvierUK

@JSlayerUK that order

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In reply to @aperfect

@aperfect happy birthday! PS stamps cost twice as much as I thought they did

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In reply to @ColinTheMathmo

@ColinTheMathmo if I were to attend only for one day, which day should it be?

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In reply to @ColinTheMathmo

@ColinTheMathmo well, I'd better make it both days then

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"How can I get people to stop using vuvuzelas?" this scientist thought. This is what she came up with: http://bbc.in/iCMPmP

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In reply to @trackinthebox

@trackinthebox today's track is ace! If only she was on emusic, then I could use up some of these worthless credits...

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In reply to @elinoroberts

@elinoroberts that's what I had just before I got Bell's palsy. Not to scare you or anything...

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I'm having a day off, but now I'm going a bit mad from cabin fever.

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In reply to @alexbellos

@alexbellos because there will always be someone who tries to argue that if there's no sign forbidding it, then they can do it

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have just registered toplology.tumblr.com . It will be the i can haz cheezburger of maths blogs if you send me funny maths pictures!

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In reply to @stecks

@stecks or able to stand out from any crowd

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Before I go out for dinner: write maths see maths! http://checkmyworking.com/misc/writemaths/ I'm going to try doing a screencast with this.

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON ahh, the good old Banach-Tarski paradox!

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In reply to @GreyAlien

@GreyAlien change the width and height of the object tag to 800px and 600px

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In reply to @standupmaths

@standupmaths the end of the tyne&wear metro spells PUMPS - Park Lane, University, Millfield, Pallion, South Hylton

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In reply to @standupmaths

@standupmaths or I suppose you could also get PLUMP out of that. Both reasonable descriptors of the residents of Sunderland.

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In reply to @standupmaths

@standupmaths I'm having trouble finding a computer-usable description of the network, but there's this map: http://bit.ly/iM9ofV

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In reply to @Buster_Bear

@Buster_Bear are you suggesting I should go?

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@nulibsage it should be made public on the 18th of June

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In reply to @JanvierUK

@JSlayerUK aaarg! that makes me massively more angry than that silly EDM

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In reply to @ColinTheMathmo

@ColinTheMathmo shouldn't that be on mathoverflow or the maths stackexchange?

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@nulibsage super! To even better hone it, can you tell me what range of shelfmarks is just maths?

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further to @peterrowlett's problem, would a crowdsourced directory of which unis have which journals, tied to your fb friend list, be wrong?

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new mathem-o-blog post: I attempt a screencast of instant maths typesetting. http://checkmyworking.com/?p=388 (interesting, @peterrowlett ?)

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@nulibsage thanks!

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In reply to @duncanmaciver

@duncanmaciver interesting. But I don't think I'd be a real mathmo if I was in the habit of keeping track of things like what time it is

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Haha, someone's painted trollface on the wall of the tunnel coming into manors metro

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ok, so I think I'm cool just signing my emails 'cp', but @peterrowlett classes up any inbox with a stark, minimalist 'P.'

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In reply to @Bishnavitch

@Bishnavitch a classic of the genre!

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man I am finding some TRIVIAL mistakes in important parts of my code

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new mathem-o-blog post: an infinite series problem http://checkmyworking.com/?p=396 written v quickly with my write maths, see maths thing

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In reply to @gingerbeardman

@gingerbeardman they've switched to a chrome-like version numbering scheme.

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In reply to @stecks

@stecks I don't know, but if you buy one you're a cubic rube

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In reply to @peterrowlett

@peterrowlett I've been stumped by a worrying number of undergrads' problems. How much of your undergrad course can you still do?

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The gcse maths revision questions on BBC Bitesize's mobile site are really good bbc.co.uk/mobile/learnin…

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In reply to @aperfect

@aperfect or you could get the train

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In reply to @rockhyrax

@rockhyrax charmed robbery?

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In reply to @JRMarlow

@JRMarlow for purposes of counting, no, I'd say 7 isn't round. It isn't a multiple of anything. I think the original guy was being sarcastic

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lovely laser-cut cell-complexes: http://n-e-r-v-o-u-s.com/blog/?p=1637 (PS: is there a word like onomatopoeia for how domain names look?)

1 favourite 1 retweet

Not sure if chicken, chips and peas bathed in piri piri counts as cooking, or if I enjoyed eating it. At least I can say I've eaten tonight

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June

Man, those are good eggs! twitpic.com/55cuvv

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I've put my wirte maths, see maths code on github: https://github.com/christianp/writemaths

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this book was just acquired by @nulibsage : http://bit.ly/iAR8M6 . Claims Godel is accessible to ambitious high school students!

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In reply to @ColinTheMathmo

@ColinTheMathmo mmm, but does this book do that? It's translated from russian and 300+ pp, but looks OK. If only I had someone to try it on.

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In reply to @ColinTheMathmo

@ColinTheMathmo godel can certainly be *explained* to anybody, sans proof, with my fave bit of maths exposition ever: http://bit.ly/jc4VBi

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my fave tumblog today http://goatsonthings.tumblr.com/ reminded me of my fave farm restaurant http://goatsontheroofcoffeeshop.blogspot.com/

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I feel like sitting in the sea for a bit to cool down. If only Tynemouth's lido was in use!

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In reply to @aperfect

@aperfect http://www.notcot.org/post/40719

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In reply to @witnessgame

@witnessgame why did that use so much CPU? And why implement in a canvas? Finally struggled through in firefox, but seriously!

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Man, why do the well-dressed people always ruin it by being hipsters with a million groady tattoos?

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In reply to @aperfect

@aperfect incubus seem to have sold out already amirite!!!!

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In reply to @aperfect

@aperfect aw man, it looks like one of those publicity stunts that only existed long enough to take pictures for the paper

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In reply to @rockhyrax

@rockhyrax well-dressed is a subjective judgement, and groady means exactly what it sounds like

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can't go to the co-op just to buy a single potato. What else should I get?

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"Welcome to Teesside, it's worse than you remember!" No kidding, that's what the sign says, and it's always right.

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I'll tell you how trendy and cutting-edge mima is: they're playing Athlete's first album in the cafe

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Mum: "Middlesbrough is like Sunderland without the hope"

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can anyone recommend a really good (book) version of the Arthurian tales?

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In reply to @elinoroberts

@elinoroberts is that what that was? I was just nodding off to sleep when it started

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Collatz thought all hailstone sequences _collapse_ to 1. Any other onomatopoeic theorems/conjectures?

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I'm not sure if I'm watching this film ironically or not http://www.youtube.com/movie/mussa I just wanted to test my tablet's HDMI out

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In reply to @brittneybean

@brittneybean halcali! @aperfect can probably supply more sensible recommendations

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it's amazing how much weird crackpot spam you get just for having an academic email address

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I've never been less satisfied with food that I made. And I made so much! The leftovers were meant to last for days. Double sad face.

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Oh my god, burger king is bad. Why did I think i wanted one? If all my food is cold, what did I wait five minutes for?

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In reply to @mattypsmith

@mattybeardsmith single rainbow? Are my colourblind eyes lying to me again?

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there's a new version of JSXGraph out hooray! http://jsxgraph.uni-bayreuth.de/wp/2011/06/08/release-of-version-0-90/

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In reply to @Gelada

@Gelada just had to send someone a link to my klein/slinky video and I noticed I'd abbreviated you to "Ed Harris"! Corrected to Edmund.

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In reply to @stecks

@stecks gosh, that is a proper question! I think their maths boffin either had contempt for the quiz or misjudged his audience badly

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The new Sainsbury's in tynemouth doesn't stock Sainsbury's mayonnaise. #mayomaynotbeahugeproblem

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In reply to @HoeJodgkiss

@HoeJodgkiss Battles?

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In reply to @brittneybean

@brittneybean what was that you were saying before about not watching reality tv?

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today's javascript lesson: don't try to pretend objects are immutable, even if you're sure you're taking copies of them. cp no clever man :(

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I'm going to open a standing-desk shop called Not A Chair In The World

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In reply to @kenfodder

@kenfodder I won't stand for that level of punnery.

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In reply to @aperfect

@aperfect so is it a thing now? very odd

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Teaching myself to write proper. I've been writing a lot of gibberish for students lately twitpic.com/595thj

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In reply to @standupmaths

@standupmaths I once had to use something like that fact to explain to someone why their random number generator wasn't producing random nos

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yeah! let's relive the hot hot summer of 2009, when swiss alphorn funk took the world by storm http://www.youtube.com/watch?v=cyTu5Nhb7jg

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In reply to @brittneybean

@brittneybean yes. listen to track => album release date saved to my google calendar.

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Good mathematics should be a joy to write. Hence, any proof involving the word "minimum" is good maths. #whatsacontrapositivebytheway

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In reply to @stecks

@stecks Benford's Law and Orthographic Practice - Theory and Applications, Perfect/Steckles, Proc. Int. Soc. Theories & Applications 2011

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In reply to @mickybullock

@mickybullock @ColinTheMathmo or you could use JSXGraph, which doesn't use java

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In reply to @aperfect

@aperfect http://www.nationaltheatre.org.uk/66109/productions/its-always-right-now-until-its-later.html

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In reply to @aperfect

@aperfect apparently the funniest comedian ever

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http://toplology.tumblr.com . Your funnier maths jokes, please.

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does the concept of looseness apply to plants? Today alone I've watched this flower outside my window being pollinated at least four times.

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In reply to @JanvierUK

@JSlayerUK that's where my brother lives! he's probably responsible!

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In reply to @JanvierUK

@JSlayerUK no, but I like to blame him for bad things

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Lost a favourite mallard recently? Then come down to my new duck cloning service, Quacksimile!

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The Silver Seas' "High Society" is an underrated album. I think it's lovely.

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In reply to @matthen2

@matthen2 JSXGraph provides a good framework for doing geometry/graphs in html5.

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my stomach is now in the Receive position

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In reply to @matthen2

@matthen2 another good tool for realtime html5 is http://monkeycoder.co.nz . See something vaguely mathsy I made at http://bit.ly/mH6iQM

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett just listened to latest m/ms. I reckon I could give a robust defence of the favourite no., if you'll have me on

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Watching the terns catch the fish and the waves hit the sea. I wish I'd brought my binoculars

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know of any fairly easily computable series representing an interesting property of numbers and roughly as common as the primes?

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In reply to @aperfect

@aperfect creepiest tweet award!

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In reply to @gingerbeardman

@gingerbeardman thanks! Maybe you can help me: do you know how to get the screen position of the input caret?

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In reply to @gingerbeardman

@gingerbeardman I tried that, but then you have to do text metrics to get the rest of the way, and it wasn't working for me.

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In reply to @gingerbeardman

@gingerbeardman if the cursor is inside maths delimiters, I want to show an instant preview of what they're typing above the cursor

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In reply to @gingerbeardman

@gingerbeardman are you on google talk or anything like that?

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I've updated my write maths, see maths thing with even more instant maths preview! checkmyworking.com/misc/writemath…

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In reply to @gingerbeardman

@gingerbeardman try a very short line - I realised I need to get the input's scroll if it overflows, and haven't fixed that yet

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In reply to @aperfect

@aperfect <C-w>v ? That was like no.1 thing I wanted to know.

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In reply to @brittneybean

@brittneybean adult, or... TERRIFIC BORE

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In reply to @gingerbeardman

@gingerbeardman preview box should work now. the scrollLeft property of input elements is what I wanted!

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I can always waste a good while watching Wetten, Dass...? http://www.youtube.com/watch?v=nlzBcgnQ56M&feature=youtube_gdata_player

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In reply to @matthen2

@matthen2 I'm getting the baader-meinhof effect so much with catenary curves at the moment. They're being mentioned everywhere!

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Meadowhall centre has 5 coloured zones, metro centre has 4. Gentlemen! We must not allow a colour-coordinated shopping zone gap!

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About to set off for the @mathsinthecity thing. Hopefully Indinana Jones and google navigation can get me there.

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I had a lovely day with @mathsinthecity and @MarcusduSautoy. Now it's back up to God's Own Northumberland for the Eat! Festival. Good times

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In reply to @MarcusduSautoy

@MarcusduSautoy I've been wondering why nobody had done that yet

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In reply to @standupmaths

@standupmaths I'm going to give my degree back tomorrow. I sat there for a good 30 seconds thinking, "but it's not inside!". doyyy...

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In reply to @badmachinery

@badmachinery not Tricky Tomlinson?

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Today I'm wearing clothes made of purest Blandulon. I think these trousers are some high-concept colour, like "iniquity" or "steady decline"

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Oh man! I've just thought of a brilliant name for a company offering donkey rides to Tynemouth, but I have a reputation to maintain. Tragic!

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In reply to @mathsinthecity

@mathsinthecity think of them as opposite ends of a spectrum

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competition: fewest keystrokes to get 140 characters on one line in notepad. Start with blank doc, mouse can only interact with notepad

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In reply to @brittneybean

@brittneybean I can only assume that's the introduction to the most interesting band blurb ever written

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imagine you're a french child in the 60s. If you weren't already dyscalculic, you would be after reading this book: flickr.com/photos/taffeta…

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In reply to @MathsJam

@MathsJam EDI: you've got that it's to do with equilateral triangles?

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In reply to @JanvierUK

@JSlayerUK he does. It's called Cameron Direct

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I'm so straight edge I can't construct a heptagon without assistance

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In reply to @mathsinthecity

@mathsinthecity wore my t-shirt today and, whaddyaknow, several people asked me for examples of maths in the city, and I obliged with gusto!

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write maths, see maths now does server-side saving and loading, so you can share pages with people! checkmyworking.com/misc/writemath…

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In reply to @divbyzero

@divbyzero re your applet not working in safari: jsxgraph is pure javascript and loads geogebra files. Maybe it'll work?

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In reply to @mathsinthecity

@mathsinthecity top tennis top tip: your player going 30-15 up is the perfect moment to shout "come on, Tim!" viz. solipsys.co.uk/new/AnOddityIn…

0 favourites 3 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes, though it would be more convincing if backed up by empirical data... Sorry I couldn't fit a mention of you in 140 chars

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In reply to @ColinTheMathmo

@ColinTheMathmo I wonder if there's somewhere I can get my hands on per-point tennis data

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In reply to @mathsinthecity

@mathsinthecity I want to add a snapshot to the site, but mathsinthecity.com/snapshots/crea… says "You are not authorized to access this page"

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In reply to @mathsinthecity

@mathsinthecity that did it!

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In reply to @mathsinthecity

@mathsinthecity next request: is there an RSS feed of the Sites? I'd like to keep up with new ones that appear

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I'm going to open a shop that sells jardine's kettle chilli. No pun this time, it's just really good chilli

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Lots of cheese on top of lots of chilli on top of lots of rice. Missing Friday lunch in uni isn't so bad twitpic.com/5g1r61

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In reply to @aperfect

@aperfect bounce rate?

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In reply to @pianomaths

@pianomaths you have to write *essays*?!

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google scholar says it has 'about 891,000' titles of the form "X: Theory and applications". I intend one day to make that 'about 891,001'.

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In reply to @peterrowlett

@peterrowlett that would make a nice snapshot on @mathsinthecity

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@DrMathS not sure about that one. Should each line have one letter fewer than the one above?

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@DrMathS ok, so what's interesting about that? I can pick so any letter can be on the last line

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I might actually die from curry-needs-to-leave-my-body disease. My eyes were bigger than my bumhole!

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I need to appoint like a Secretary of State for Sugar. 'Parlous' doesn't begin to describe the state of the Strategic Chocolate Reserve

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In reply to @brittneybean

@brittneybean is it US only? I managed to get in fine. It isn't very good

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In reply to @brittneybean

@brittneybean better execution: listeningroom.net

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In reply to @peterrowlett

@peterrowlett wow, I sound like Brian Cox at the start of that! What's that all about?

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In reply to @peterrowlett

@peterrowlett I wish I'd seen this two hours ago! mymodernmet.com/profiles/blogs… really clever ads telling parents to get involved with kids' learning

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magic chocolate sauce no longer hardens when you put it on ice cream. What makes it magic now? Certainly not the taste sheesh

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In reply to @ColinTheMathmo

@ColinTheMathmo which school? and the north east is a mathematical desert. I'd host a mathsjam if I had any energy...

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In reply to @pianomaths

@pianomaths Bachematics! en.wikipedia.org/wiki/G%C3%B6de…

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen I agree with the gentleman from Nottingham.

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In reply to @aperfect

@aperfect get thyself on gtalk

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In reply to @matthen2

@matthen2 tesseract?

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In reply to @MarcusduSautoy

@MarcusduSautoy "18/3" = 6 seems more perfect to me

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In reply to @Electrokittie

@Electrokittie well done!

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In reply to @peterrowlett

@peterrowlett I'm sure I've asked you this before but do you know of any case studies of making maths tutorial videos available to students?

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In reply to @Gelada

@Gelada nice post. Similar to my recent defence of favourite numbers on #mathmaths

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In reply to @JanvierUK

@JSlayerUK my cake recipe: 1. bake sponge; 2. add buttercream; 3. GOTO 2

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In reply to @Gelada

@Gelada I was prepared for rigorous inquisition.

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In reply to @ColinTheMathmo

@ColinTheMathmo that's very vague! do you mean the guy who rediscovered the trapezoidal rule? fliptomato.wordpress.com/2007/03/19/med…

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In reply to @pianomaths

@pianomaths bad textbook! What are you studying?

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In reply to @pianomaths

@pianomaths I have a complete set of handwritten notes on PC from the Formal Logic course I took in second year, if you'd like

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In reply to @pianomaths

@pianomaths that's mad! Which book is it?

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someone was talking about the different ways of thinking about multiplication. This page shows what they are very well: naturalmath.com/multmodels/3.h…

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In reply to @mathsinthecity

@mathsinthecity the forums on the MitC site are being spammed

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In reply to @brittneybean

@brittneybean my summer playlist is basically, "the works of Yukimi Nagano"

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just merged basically the Nikolai Tesla and Thomas Edison of git branches together. They got on fine! I feel like programmer-Jesus

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I just got sent this hilariously enthusiastic scam link by a spambot after I mentioned Tesla: teslasecret.com/indexn.php?hop…

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In reply to @peterrowlett

@peterrowlett any chance you could change the link for me in your post to my maths site checkmyworking.com ?

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In reply to @JanvierUK

@JSlayerUK pictures!

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I've already spilled blue and red foods on myself. Now I just need something green and I'll have a chest-mounted basis set for visible light

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In reply to @kenfodder

@kenfodder do you know anything about dynamically adding nested forms in rails?

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In reply to @eelhovercraft

@eelhovercraft it would be the image of some cubes painted on a table

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ninety/ten + twelve - three = twenty + eleven - thirteen. What a winner of an anagram by Mike Keith cadaeic.net

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July

my nice and quick maths note-taking tool is now at one of those clever domain names you keep seeing: http://takenot.es

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going to find a Ms Settunmacz, marry her, insist on a double-barrelled name. Our child will be the most successful tennis player in history.

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In reply to @stecks

@stecks if that had proper jigsaw teeth it could embody the noncommutativity of matrices.

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Starting a new version of The Game for when you feel the Baader-Meinhof effect. Clearly, you can get stuck in a big losing streak quickly.

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because I have no shame: a blog post asking you please to try my rather clever maths note-taking tool: checkmyworking.com/?p=425

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going to open an art supplies shop in Somerset called Draw à Bath

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It might be time to buy a better straw hat. Does anyone have any good advice?

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In reply to @matthen2

@matthen2 that's genius!

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In reply to @arowx

@arowx site's ok, but you've got 'arwox' at the top of arowx.com/bfm/oonagh/

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it's nearly time for Christian's Quixotic Coast Quest! If you're a person or place in the west of Britain that I should visit, please say so

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happy 04/07! The royal rebuttal to the declaration of independence: archive.org/stream/cihm_20…

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In reply to @rockhyrax

@rockhyrax test authoring software? I'm very interested! What is it?

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I'm very tired of hearing my landlady argue with her husband every morning

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In reply to @mathsinthecity

@mathsinthecity That's a terrible thing to do! Additionally, they're not entertaining arguments, just sad ones.

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In reply to @brittneybean

@brittneybean that sounds like exactly the sort of ridiculous proposition you encounter all the time in math.

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In reply to @mathsinthecity

@mathsinthecity I'm about to set off on a jaunt around the west UK but MitC map is sparse there. Could you RT this to prompt some additions?

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In reply to @mathsinthecity

@mathsinthecity and I have no real itinerary so if anyone knows about somewhere but can't get out to take a picture of it, let me know!

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In reply to @mathsinthecity

@mathsinthecity as a geordie, I had to restrict my use of language lest it get too colourful. Thanks for the RTs

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In reply to @rockhyrax

@rockhyrax ah, fetlar, qti and java. My interest has dissipated. Tried it out though, and am I meant to already have some QTI questions?

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In reply to @rockhyrax

@rockhyrax clunktacular UI, slow start-up lots of the time, not as ubiquitously available as a plain old browser. Mainly the UI though.

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In reply to @rockhyrax

@rockhyrax to your UI? I haven't spent enough time to say! I was commenting on java apps in general

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In reply to @JanvierUK

@JSlayerUK yes! I was just thinking that half an hour ago!

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In reply to @peterrowlett

@peterrowlett I've recently inherited some money, and it's been a struggle not to spend it on a curta

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can you believe that how my site looks now is better than how it looked 15 minutes ago? somethingorotherwhatever.com

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booked my first B&B for my holiday, which begins in two days. I belong to one of the two ends of the planning genius spectrum.

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In reply to @MarcusduSautoy

@MarcusduSautoy @bbccode when will the challenge be running? I'm away for all of July

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In reply to @Gelada

@Gelada isn't that to do with the uni's subscriptions? Or was that just a general anti-paywalled-journals complaint?

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I've just discovered that travel insurance will cover the cost of a round of drinks if you score a hole-in-one on your golfing holiday

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13^2 = 169 followers! minus*minus = plus, so unlucky*unlucky = lucky, right?

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I don't know how many kids there are on my street. They're all the same blonde 5-year-old girl. Low bound: I've seen three together at once

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I'm in the most high tech mcdonalds in the world! Every wall has a kinect origami game thing, and laser display boards announce orders. Mad!

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I'm at Bletchley Park, hooray!

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Bletchley Park is great! Absolutely loads to see, made very accessible, and a really interesting story.

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I have no idea where my nana gets these cardboard pizzas. Maybe she stockpiled them decades ago; the recipe hasn't changed in my lifetime.

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At stonehenge all on my lonehenge. No tall Dutch tour groups I can blend into. All tiny Iberians.

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Interesting generation of pictures by context-free grammars contextfreeart.org/index.html

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I've just had a curry with carrots in it. They've convinced me: it is the way of the future

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Dunster castle: excellent in every way, except the river garden walk is non-eulerian

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In reply to @brittneybean

@brittneybean already being done at a hippy festival they're advertising on the metro.

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In reply to @peterrowlett

@peterrowlett google+ would be a good medium for sending "what's happened in your maths week" things - more space for explanation thn twtr

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I wish I could do my eight-year-old me trick on twitter and just squash the final letters together so they fit

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In reply to @pianomaths

@pianomaths I believe the collective noun for gnomes is "a polygnomial"

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In reply to @aperfect

@aperfect very well. Currently in bristol, did loads this morning

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I think I've caught a cold :(

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Retreating back to Slough because of the plague. Wales and the NFL hall of fame: things I will never get into

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In reply to @elinoroberts

@elinoroberts colds are terrible things! At least you only had to get back from work; I medevaced myself out of bristol to my nana in slough

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Found a wasp snoozing on my blanket. You wouldn't catch an honest hardworking honeybee slacking off like that!

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In reply to @peterrowlett

@peterrowlett I'm tempted to play devil's advocate and see if sturgeon's law applies to maths - how much maths never becomes useful?

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In reply to @peterrowlett

@peterrowlett you don't, but you can ask questions like: does the proportion of good maths go up or down with the number of mathematicians?

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my nana has the heating on! aaaaaaaaaaaaaaaaaaaaa I'm melllltiiiinnnnnnng

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wherein Chaitin advertises his book, nevertheless giving an entertaining exposition of unsolvable/uncomputable things: cs.auckland.ac.nz/~chaitin/olymp…

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In reply to @peterrowlett

@peterrowlett @IMAmaths some context? what's the IMA e-student community?

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In reply to @peterrowlett

@peterrowlett there are no plans, because I have negative stamina points. Send them my email though, maybe something can be worked out

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when playing wolf3d with the sound off, there is basically no reason to pick up the treasure

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In reply to @ColinTheMathmo

@ColinTheMathmo I'd love it if that project resulted in a bot that alternates between tweeting "throw a ball" and "catch a ball"

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they're making a movie of Gideon Defoe's pirates! hooray! youtube.com/watch?v=iiQNvc… but it doesn't really look much like I imagined

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oh, good! there's a much better, less American, trailer: youtube.com/watch?v=laIHcJ…

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In reply to @peterrowlett

@peterrowlett did you get my thing on google+? It was a hassle to persaude it to go to the right version of you!

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In reply to @mountain_ghosts

@jcoglan bethere.co.uk , if you can get them

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my nana has just shown me a photo she took of the penshaw monument being built. Wikipedia says it was built in 1844. #therecanonlybeone

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hipsters: I've learned to tolerate your bad 80s hairdos and your bad 80s clothes, but please don't bring back bad 80s dancing. Please.

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In reply to @ColinTheMathmo

@ColinTheMathmo that doesn't work, unless I'm missing something - tyres will leave the same rain shadow no matter what the pressure

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In reply to @ColinTheMathmo

@ColinTheMathmo hmmm, that's definitely true on something like a Caterham...

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In reply to @AdamClery

@AdamClery that isn't how our constitution works!

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In reply to @brittneybean

@brittneybean a massive (d | bj)ork

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In reply to @AdamClery

@AdamClery normally, PM stays on until a successor is chosen from the party, or parliament is dissolved and an election called

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a mathoverflow thread of proofs without words: mathoverflow.net/questions/8846…

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AAAAG! Boiler no. 2 has died!

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In reply to @Bishnavitch

@Bishnavitch yes. Caught a cold, have spent the last four days dead at my nana's, now back in tynemouth

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In reply to @HoeJodgkiss

@HoeJodgkiss very <<allo matelot!>>

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In reply to @Bishnavitch

@Bishnavitch did you get the email about pay? I'll have to ask Sam what the situation is

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In reply to @Bishnavitch

@Bishnavitch just hung up on you. Far too ill to talk

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In reply to @Bishnavitch

@Bishnavitch then you got an email I didn't! I just got one from payroll

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squajiliions of short videos explaining topics <= A-Level maths: patrickjmt.com

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In reply to @brittneybean

@brittneybean bjorkrazy (you're crazy)

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In reply to @brittneybean

@brittneybean ah no, could've done much better than that because of your initials. bjorkrazy -- B: you're crazy

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In reply to @alexbellos

@alexbellos there is an extremely nice buffalo restaurant in Denver. The rest of the city's a bit boring, though

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In reply to @alexbellos

@alexbellos turns out there's also one in Boulder - Ted's Montana Grill. Basically, unless you're veggie, you must go

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I've written a javascript Textile implementation that isn't awful: plus.google.com/11130061692066…

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ok, so my landlord and his wife are both at home, but he's just texted me asking me to take the bins out. Lazy? Taken hostage by the dog??

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symmetry groups and beaded beads myweb.lmu.edu/bmellor/beaded… (those frieze pattern footsteps make an appearance, @mathsinthecity)

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In reply to @brittneybean

@brittneybean is this like how all US food packaging looks like it's from 15 years ago (also: most US food is still edible after 15 years)

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In reply to @aperfect

@aperfect looking up train prices now...

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In reply to @haggismaths

@haggismaths that is a lovely blog! Can't follow the colourings because I'm colourblind though.

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In reply to @plusmathsorg

@plusmathsorg it's good to have a roll model

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In reply to @brittneybean

@brittneybean worth it just for the opportunity to say "Woolwich" on a regular basis

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Pi approximation day is an excellent time to add me to your google+ circles plus.google.com/11130061692066…

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I've been saying 'plenoply' forever. Turns out it's 'panoply'.

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In reply to @pianomaths

@pianomaths 90% is pretty ruddy good for final year!

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In reply to @Samuel_Hansen

@Samuel_Hansen your entire thesis is shorter than my introduction! And I'm doing computability, so no pretty drawings. I regret my choices.

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I think this cold might be permanent.

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In reply to @badmachinery

@badmachinery EXCELLENT twist today

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ACTION BLACKBIRD is pouncing and prancing around my lawn like a true winner. It's practically going "HIYYAAAA!" every time it catches a worm

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WAHEY!!! Blackboard finally supports SCORM objects properly! And no Java! Exclamation marks!!!!

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Just noticed the house opposite has a 60-30-90 triangle roof shape. What was the architect thinking?

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ACTION BLACKBIRD is *still* dashing about the garden with a beakful of conquered worms. This is some top-class foraging from the little man!

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In reply to @standupmaths

@standupmaths implying the total bill itself was zenzizenzic!

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In reply to @standupmaths

@standupmaths ah boo! That's where the thought started, but zenzizenzic is a really really good word!

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Just looked at somethingorotherwhatever.com/primebirthday/ and found a fortnight-long gap between prime birthdays coinciding with my flu. Could say I feel subprime!

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In reply to @brittneybean

@brittneybean one for DeliberatelyAccidentallyInShotPoketoWallets.com

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen fine, I've just increased mine too, to (my favourite number)//100.

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I thought exactly the same thing! But I think it's just because he's working class, not a race thing

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Drove down to the fish quay to drop something off, ended up parking further from my destination than my house is

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In reply to @peterrowlett

@peterrowlett mathematics is just about everything from science to art to interpretive dance, but not numerology

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In reply to @haggismaths

@haggismaths a while ago the Cayley graph of the free group F_2 spontaneously grew on my blackboard: flickr.com/photos/christi…

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In reply to @aperfect

@aperfect never mind verbing, I read a blog post yesterday where the author gerunded 'sciencing'

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In reply to @haggismaths

@haggismaths certainly

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helping my nana use her chip+pin machine over the phone. So insecure.

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In reply to @stecks

@stecks I use precious. Nice and clean for putting maths in the middle of wordpress.org/extend/themes/…

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In reply to @haggismaths

@haggismaths certainly!

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In reply to @haggismaths

@haggismaths whoops, I resent that tweet because I couldn't remember sending it the first time!

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie tofugu.com/2010/11/09/cat…

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magic palindrome acrostic latin square metafilter.com/105914/Farmer-…

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In reply to @standupmaths

@standupmaths Imma let Marcus finish, but David Malone made the best docu. about the maths behind our world OF ALL TIME http://bit.ly/pm7LJj

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Quick survey: what letters can you type on an upside-down calculator?

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all the words you can write on an upside-down calculator: somethingorotherwhatever.com/?thing=calcula…

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I've seen loads of maths art lately. I need to start collecting it somewhere. "Views of the Tesseract" etsy.com/listing/782049…

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In reply to @standupmaths

@standupmaths so the sticker breaks the social contract by making promises re the jug's contents it can't keep? Like egyptian tomb curses?

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this speaker has brought a laser pointer that I can actually see! Best talk of the day!

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I said I would do it and I've done it -- a collection of arty maths: artymaths.tumblr.com

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Piniest tinecones! twitpic.com/5xkmhv

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In reply to @aperfect

@aperfect STOP SPENDING MONEY

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hah! I *think* I'm using @MathJax queues properly now. At least, everything typesets properly, which satisfies some definitions of "proper"

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Tynemouth seems to be a bit of a mathmo/sciencist colony - I know of me, @elinoroberts and @Cloudoid . Any more?

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talking of which, @elinoroberts - would you or anyone else at Life be interested in a Newcastle MathsJam?

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In reply to @elinoroberts

@elinoroberts @peterrowlett has kicked me into action, and someone else is interested but away until October. Haven't decided a location yet

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In reply to @CloudoidLtd

@CloudoidLtd do you know your website's broken?

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yeeeaaahhh the beach!!! notcot.org/post/42060/

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In reply to @aperfect

@aperfect that's graph theory!

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you're watching itv3: the Martin Clunes channel

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I've got sock stigmata! twitpic.com/5ys6wg

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so Newcastle @MathsJam is a thing now. First one will be 23rd of August, location to be decided. Pass it on.

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August

In reply to @standupmaths

@standupmaths phew, glad you corrected that. I started doubting some fundamental things

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In reply to @standupmaths

@standupmaths and now you've got the statement right, add this caveat: works only for numbers with prime factorisation 2^x . 5^y

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In reply to @haggismaths

@haggismaths oof that animated gif is huge, but it's very nice. Thanks!

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In reply to @haggismaths

@haggismaths it would probably be bandwidth-cheaper to use the original images and a bit of javascript magic

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javascript magic: var directions = [-1,0,1].reduce(function(l,a,i,arr){l.push(arr.map(function(b){return [a,b];}));return l},[]);

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EXCELLENT myreckonings.com/wordpress/

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In reply to @mathsinthecity

@mathsinthecity we should set up a @mathslamps account

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oh no, I've got the bad kind of hiccups! People die from this! Not even God's messenger on earth was safe: en.wikipedia.org/wiki/Death_of_…

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tiny computer people: your nominations for above-average tex mex restaurants anywhere in the world. First to say Blue Coyote gets unfriended

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I've started making progress on my quest to photo every blue plaque in Newcastle: plus.google.com/11130061692066… (I need help with some, @NewcastleCC)

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In reply to @standupmaths

@standupmaths trid to be clever in my email; forgot exactly how RSA works; feel silly.

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In reply to @standupmaths

@standupmaths compounded mistake by misspelling 'tried'...

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Mathmo is hours from missing his modest fundraising target for ambitious project to tell math stories. Please consider bit.ly/relprime

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In reply to @Electrokittie

@Electrokittie are you not on google+ yet? circles are a complainer's panacea

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In reply to @ColinTheMathmo

@ColinTheMathmo @Tony_Mann and it's interesting to see the number of people who were waiting for someone else to pay instead of them

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In reply to @standupmaths

@standupmaths @MrCMaths @Annie_Beez that's an excellent candidate for @mathsinthecity !

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In reply to @Samuel_Hansen

@Samuel_Hansen well done, sir! You have definitely earned my money already.

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In reply to @alexbellos

@alexbellos my mum has just emailed to say a man being interviewed on newsnight about phone hacking had your book in clear view behind him

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hah, radio nova have realised they've got lots of english listeners and have put a union flag-bestrewn column down the middle of their page

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In reply to @haggismaths

@haggismaths several people have recreated it, and the top answer explains how it works. What more do you want?

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In reply to @matthen2

@matthen2 or there should be a locals-only skyway

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In reply to @mathsinthecity

@mathsinthecity the PIN one tickled me. In the same vein: I made a page to work out when your next prime birthday is somethingorotherwhatever.com/primebirthday/

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In reply to @mathsinthecity

@mathsinthecity oh boo! That's what I get for letting my brother set up my server. I'll try to find an alternative.

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In reply to @mathsinthecity

@mathsinthecity can you access takenot.es ?

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In reply to @mathsinthecity

@mathsinthecity brother is in that London down there, so would need to be online to receive a beating. Try takenot.es/primebirthday/

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In reply to @mathsinthecity

@mathsinthecity no way! Mine too! Are we prime twins?

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In reply to @mathsinthecity

@mathsinthecity an even number of days after that

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In reply to @mathsinthecity

@mathsinthecity ratso! OK, one more bit of information: you'd send me one before I sent you one

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In reply to @alexbellos

@alexbellos wouldn't pretty blonde traders appear during a boom?

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In reply to @TimandraHarknes

@TimandraHarknes I'd have to travel to get to the party. That's right: I'll have to commute. It's what he would've wanted.

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has anyone else noticed Chrome developer tools suddenly using loads of CPU and blocking the whole browser lately?

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interesting maths videos made with a blackboardy tablet PC: rootmath.org

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In reply to @aperfect

@aperfect yeah... I'm gonna need you to come in on the weekend to fix my DNS, OK buddy?

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In reply to @standupmaths

@standupmaths did you ever send me that password?

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Newcastle @MathsJam 23rd August 7pm Bodega, Westgate Road, near the Tyne Theatre. Email newcastle@mathsjam.com or me if you're interested

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In reply to @Gelada

@Gelada do you own "sacred mathematics: Japanese temple geometry"? I've just got a copy. It's a wonderful combination of art and geometry.

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In reply to @Electrokittie

@Electrokittie where is this posh burger king?

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In reply to @peterrowlett

@peterrowlett it was watchable - 3 of us phds were hooked! (it was a very VERY slow day)

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Cockney rhyming slang has its genesis in a performance of 'Oranges and Lemons' that got out of hand

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In reply to @Gelada

@Gelada minus points for rhyming 'Euler' with 'ruler'

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In reply to @ColinTheMathmo

@ColinTheMathmo is there a reason there are no outside links in your blog posts? For example, the MO/ME thread about dissecting a square

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In reply to @Electrokittie

@Electrokittie ah! I wondered why there was a queue last time I walked past

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it's my 1155th prime birthday today! And happy prime birthday to @mathsinthecity too. Anybody else celebrating today? takenot.es/primebirthday/

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In reply to @elinoroberts

@elinoroberts inconceivable. You're eating the wrong sandwiches.

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In reply to @elinoroberts

@elinoroberts will you be coming to Newcastle @MathsJam, do you think? I'm having trouble finding takers so far

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In reply to @jjsanderson

@jjsanderson 23rd August, the Bodega on Westgate Road

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In reply to @plusmathsorg

@plusmathsorg see also amazon.co.uk/Making-Mathema…

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about to burn down my flat, but not as part of a riot. There are loads of spindly spiders hanging around the skirting boards. What are they?

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In reply to @mountain_ghosts

@jcoglan if you're registered with nickserv, yes

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In reply to @GhostMutt

@GhostMutt famously nobody: zeboyd.com/2011/07/18/zeb…

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@nulibsage could you please RT this? Newcastle MathsJam first meeting 23rd August, The Bodega, Westgate Road. mathsjam.com/index.php?cont…

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In reply to @mountain_ghosts

@jcoglan you can write a cron script to send that tweet every time your cron script fails #unhelpfulneckbeardadvice

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In reply to @mountain_ghosts

@jcoglan it's woefully underused.

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is there no way to stop skype opening Skype Home when it connects any more?

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In reply to @peterrowlett

@peterrowlett complicated topic, long report, maybe the report is sufficiently bland or agreeable not to provoke comment

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In reply to @HilariousCow

@HilariousCow that's a case of deliberateja-vu

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javascript top tip: save valuable space in your programs and confuse your colleagues by writing '!0' and '!1' instead of 'true' and 'false'.

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this moth is flying in a manner suggesting it has only just learned to perform the feat

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In reply to @ColinTheMathmo

@ColinTheMathmo great article, but wow NYT editing has slipped: "Like others, I was moved and donated."

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In reply to @qikipedia

@qikipedia the tyne and wear metro has a unique topology mathsinthecity.com/sites/topology…

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In reply to @Samuel_Hansen

@Samuel_Hansen I had been meaning to send you pics when I had the book handy, but my fave maths shapes are in Byrne's Euclid (also sangaku)

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.@matthen2 are there any mathematical sights I should see in Edinburgh while I'm here?

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In reply to @Bishnavitch

@Bishnavitch tomorrow. Film on Tuesday? Still no more from Sam

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In reply to @Bishnavitch

@Bishnavitch I'm back late tomorrow. Friday it is, then.

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Pancho Villa's in Edinburgh does very nice Mexican food

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON WHAT DID I JUST SEE?

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Petrol is £1.31 in Byker! God bless you beautiful Libyan freedom fighters! Or are we not meant to talk about that part?

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Man that last tweet was unacceptably sarcastic. I hereby resign my post to spend more time with my stuffed animals

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In reply to @JanvierUK

@JSlayerUK did she have an Excellent Irish Nun Name?

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why can't I do a simple box-circle collision? What has happened to me? I resign for a second time today to spend more time with my textbooks

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In reply to @stecks

@stecks that was world record Most Contentedly Lonely Dude attempt. Trying to beat man who watched all Friends dvds in one sitting last year

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen only hard math is patentable arst.ch/qlf

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In reply to @Bishnavitch

@Bishnavitch no!! I'm at maths-aid until 4

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In reply to @Bishnavitch

@Bishnavitch can we not get a couple of hours in? I can give you a lift back into town

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In reply to @Bishnavitch

@Bishnavitch 4.30, it takes me time to get home!

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"the man who annoyed Adolf Hitler" - understatement from BBC News. As history shows, rather a lot of men annoyed Adolf Hitler

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In reply to @mathsinthecity

@mathsinthecity that *is* a nice jumper! I have no nice jumper and my maths explanation videos are a shambles. :( :(

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In reply to @mathsinthecity

@mathsinthecity sadly, finding jumpers able to enclose my considerable length is v hard. I might never be an eligible mathmo :(

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In reply to @brittneybean

@brittneybean @aperfect Crayola's colour names are almost definitely copyrighted/trademarked. Look here: code.google.com/p/color-js/

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In reply to @aperfect

@aperfect @brittneybean yeesh! code.google.com/p/color-js/sou… code.google.com/p/color-js/sou… code.google.com/p/color-js/sou…

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In reply to @Electrokittie

@Electrokittie if you send me your email address I will invite you to google+

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somebody please do this: git log --oneline --graph as a level for California Games BMX. More collaboration => bumpier level

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In reply to @CloudoidLtd

@CloudoidLtd there's a bit. The way I'll be doing it is, I will sit in the pub until people turn up, then we talk maths!

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In reply to @standupmaths

@standupmaths dude, that band has holes in it. Not mobius.

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I've finally got round to putting on the t-shirt I bought at Bletchley Park, and it's a *women's* XL! So annoying!

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In reply to @MathsJam

@MathsJam can anyone coming to Newcastle MathsJam please please make sure to email, because I've got no idea how many people will be there

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen which one of you is responsible for how quiet this week's #mathmaths is? Resign!

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a note you don't want to see from your supervisor: "yes (as long as 0^0=1, which it seems to here)"

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In reply to @peterrowlett

@peterrowlett a survey answering that question should also establish the belligerence of those who don't like pizza.

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In reply to @CloudoidLtd

@CloudoidLtd will you be coming to mathsjam tonight?

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In reply to @CloudoidLtd

@CloudoidLtd go on!

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Newcastle #mathsjam is go! Starting with @peterrowlett's 16 dots puzzle. What else should we do?

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Trying to find equivalence classes of solns to the 16 dots puzzle. My group theory failing me, @E_I_W breaking out some graph theory

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In reply to @MathsJam

@MathsJam to your question. You need to follow me so I can dm you!

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In reply to @MathsJam

@MathsJam @peterrowlett talking of fields: why can't you grow wheat in Z/6Z? Because it's not a field!!!

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today on my arty maths blog: etsy finds, with a prime number counting chart for the baby you hope is cleverer than you artymaths.tumblr.com

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In reply to @plusmathsorg

@plusmathsorg if you had the conventional selection of 'share this article' buttons, I would use them for this article.

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seems librarian is explaining the concept of the book to these people. One is staring at a page but sort of past it like a magic eye picture

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if I didn't know Green's theorem before, I defo know it now. I've explained it to a bajillion students today before the resit this afternoon

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In reply to @jamesgrime

@jamesgrime your local dude with a laser-cutter should be able to do it

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I ate a very spicy pizza last night so I would wake up in time. That worked, but there were... side effects

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ok guys, I'm going to spend some time horse fishing in Flanders, going to sort some things out about myself youtube.com/watch?v=ZT7WBt…

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In reply to @brittneybean

@brittneybean That is a pretty silly picture. And is the article about foreign firms hiring Koreans?

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In reply to @brittneybean

@brittneybean there you go! I can see no problem with the caption

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There is a lot of yellow happening on me today, apparel-wise. Gotta beat those rainy day blues

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In reply to @peterrowlett

@peterrowlett unexpected satire from local podcasting hero

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In reply to @Electrokittie

@Electrokittie if Stalin had stayed that thin would history have judged him so severely?

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In reply to @standupmaths

@standupmaths haven't you seen those before? Seems to be based on what this guy did in '96 graficaobscura.com/lasercut/surf.… graficaobscura.com/surf/index.html

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I've made a career decision! I'm going to start a blog of videos of children being told old jokes for the first time and just losing it

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Golden guernsey goats on countryfile! Jesmond dene has one and it is the best goat.

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rubik's cube in minecraft youtube.com/watch?v=TFKwCe…

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In reply to @ThomasEWoolley

@ThomasEWoolley every time I see that second shell with the triangles I am amazed. Have you seen this? sciencedirect.com/science/articl…

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In reply to @ColinTheMathmo

@ColinTheMathmo about Q7: what if I'm not too keen on the given Star Wars characters? Can I write in Chewbacca somewhere?

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In reply to @ColinTheMathmo

@ColinTheMathmo I went with Lando, the closest match (old friend of Han, alright with a blaster) but I'm not happy: I still got Apologiser

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In reply to @matthen2

@matthen2 is that a tautology, or have you got an example in mind which looks like it should give a different answer?

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from now on I will be using prettycolors.tumblr.com whenever I need to pick a colour

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In reply to @plusmathsorg

@plusmathsorg I thought you were a maths magazine?

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In reply to @aperfect

@aperfect hardly the coding rockstar lifestyle. More like coding support act with like two fans at the back who half know one of the songs

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Man, there's something unusual I meant to put on my shopping list but all I can think is 'reticulated splines'. Curse you, SimCity!

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In reply to @trackinthebox

@trackinthebox oh no, double grammar mistake today! practise - verb; practice - noun. Practice makes perfect; practised group.

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In reply to @peterrowlett

@peterrowlett *ahem*...

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In reply to @peterrowlett

@peterrowlett yes. what does it involve?

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In reply to @Gelada

@Gelada when you said facial topology I thought of this page.mi.fu-berlin.de/polthier/artic… in the Hilbert room at Goettingen

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In reply to @HoeJodgkiss

@HoeJodgkiss how long would it take for a new Newcastle club to work its way up to the EPL? Less than for NUFC to sort itself out, no doubt

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September

the slides I presented at @eassessscotland about Numbas are now on the web: inishmore.ncl.ac.uk/eas-presentati… #eas11

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hooray! my Gauss Fact got put on the site! gaussfacts.com/view/Mathemati… but boo, I *just* missed having fact #500

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In reply to @standupmaths

@standupmaths thing that annoys me about glasgow's map is that they have "inner" and "outer" lines - why not clockwise and anti-clockwise?

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In reply to @standupmaths

@standupmaths because many cities are laid out along a river, so a tablet shape means less squishing at the sides

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In reply to @brittneybean

@brittneybean @aperfect there's so much bad maths in that poster I don't know where to begin.

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In reply to @brittneybean

@brittneybean @aperfect also, it's so badly designed I literally don't know where on the page to begin

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I've bought a rotring tikky graphic pen. Using it is like writing lullabies for baby rabbits on softest vellum. Best pen ever.

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the best science video I've watched in ages sciencefriday.com/videos/watch/1… It's about hidden cephalopods

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In reply to @NoelAnn

@NoelAnn I think your twitter account's been hacked

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suppose you open a clementine and it's all shrivelled up inside. Do you still eat it? Is it worth powering through the awful texture?

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never mind, twitter, I just answered my own question. The answer is definitely no.

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In reply to @enoFsamohT

@enoFsamohT @Electrokittie well that's put me off my lunch, dinner and tomorrow's breakfast

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Imagine being a boiler repair man. Everyone you meet all day is unwashed and smelly. Yeesh.

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In reply to @brittneybean

@brittneybean Jimmy Fingers and the Fingerbowls! Cholera Squad! No, it must be The Reappraisals! #mightaswellbeforallicare

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Does anywhere in Tynemouth sell freshly made doughnuts?

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In reply to @haggismaths

@haggismaths so you need to post the link

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In reply to @CloudoidLtd

@CloudoidLtd ah man, I just walked past there!

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In reply to @Electrokittie

@Electrokittie it goes the other way too, viz Oswald Mosley

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phew, didn't completely ruin @peterrowlett and @Samuel_Hansen's podcast through technical ineptitude. They make it sound so easy, and it is!

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In reply to @standupmaths

@standupmaths I spy an opportunity for an extremely tedious google maps mashup cataloguing the arithmetic road signs of Great Britain.

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In reply to @peterrowlett

@peterrowlett forgot to mention most interesting thing about my week! Every single student doing resits needed Green's Theorem explaining!

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In reply to @peterrowlett

@peterrowlett ... if I didn't know it before, I certainly do now

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In reply to @NoelAnn

@NoelAnn what does that mean? Support increases as deadlines approach, or having deadlines at all increases use of maths support?

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In reply to @NoelAnn

@NoelAnn ok, that matches my experience. In fact, students turning up not just before a deadline is a notable event

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In reply to @mountain_ghosts

@jcoglan man I thought I was so cool registering a legible .es domain a few months ago, but now everyone's got one!

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Living the VIP lifestyle twitpic.com/6gugns

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In reply to @brittneybean

@brittneybean be totally cliche and implement the boids algorithm

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In reply to @brittneybean

@brittneybean harry.me/2011/02/17/nea…

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aaarg vim-latex-suite, why do you rebind the way line deletion works? That has nothing to do with LaTeX, that's just your preference!

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In reply to @aperfect

@aperfect that's worse than those french dudes!

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON chin up, young man!

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In reply to @kenfodder

@kenfodder fairly often

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ligatures count as single-letter variable names, right?

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In reply to @mathsinthecity

@mathsinthecity much worse: set theorists ruin your day in uncountably many ways at once.

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In reply to @aperfect

@aperfect but I'm writing LaTeX!!

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ok twitter: BLT pizza or piri-piri chicken pizza?

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ok guys, time to get serious and do some blue-sky thinking outside the box: tuna mayo pizza. What do we think?

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In reply to @elinoroberts

@elinoroberts Jeera. North Shields. They deliver. Nobody needs to know.

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In reply to @Bishnavitch

@Bishnavitch I used too much piri-piri spice and now I am blind. I blame youuuuuuuuuuu!!!

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what's it called when you decide that the correct use of semi-colons *does* matter and then taking part in society becomes unbearable?

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In reply to @standupmaths

@standupmaths "going". Future-proof.

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leadmees is a fun kinect game. It's like Lemmings, but you carry them around on your shoulders

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You dawg, I heard you like eggs, so I made you an egg mayo sandwich, do you can eat eggs while you eat eggs

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In reply to @plusmathsorg

@plusmathsorg v interesting bit of synaesthesia at the end of that - i've never thought of the number line having a bend, or being vertical

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In reply to @alexbellos

@alexbellos that is a really good read, and it will fit in well with my Interesting Esoterica collection mendeley.com/groups/519971/…

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In reply to @elinoroberts

@elinoroberts excellent. And, "Donkleywood Bastle" is a real thing and not just an arbitrary selection of syllables.

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how have I suddenly got three new people following my Interesting Esoterica collection on Mendeley? Are you twitter followers, you people?

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talking of mendeley... from the creatively-named papers collection: mendeley.com/research/a-wom…

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In reply to @standupmaths

@standupmaths sign me up for a big box. Our university marks-recording scheme thinks ratios become percentages by sticking a % on the end.

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In reply to @subcide

@subcide @mrgunn ah, thanks!

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In reply to @peterrowlett

@peterrowlett it just sticks the "and others" bit on regardless: I know my last tweet has only been retweeted once, but it says "and others"

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In reply to @peterrowlett

@peterrowlett it might have something to do with the way twitter stores tweets - they're not all available on demand.

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In reply to @peterrowlett

@peterrowlett or maybe the original tweeter counts towards the retweeting total

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"Texts aboput [sic] quality in e-learning." EXCELLENT QUALITY

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In reply to @Gelada

@Gelada is that going to be something like, 'least sequence not in Sloane' then?

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In reply to @HilariousCow

@HilariousCow so: yo Colonel Gaddafi / I'm not gonna miss you / Much like month-old taffee / your face looks like pig poo.

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In reply to @HilariousCow

@HilariousCow on the streets, they call me MC Hasn't-quite-got-the-hang-of-scansion

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In reply to @CloudoidLtd

@CloudoidLtd nice! reminds me of the kind of textures you saw in 90s games like Quake

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nice man 3d-prints mathematical objects: metafilter.com/107301/The-mat…

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and you know that dude's a pro because he always takes care to specify the *3-dimensional* sphere.

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In reply to @mountain_ghosts

@jcoglan goes well with Qurana Padano

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In reply to @Samuel_Hansen

@Samuel_Hansen collecting all your unmanageable deadly sins into one easy bout of gluttony, are you?

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In reply to @peterrowlett

@peterrowlett what help is needed? I think she's got it.

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In reply to @peterrowlett

@peterrowlett parsed joyfeed as a name. Probably isn't. Man or woman?

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very good javascript maths scripting thing calculize.com entirely numeric, so no nice typesetting or symbolic manipulation, but cool.

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In reply to @CloudoidLtd

@CloudoidLtd could you make an AI chase the cursor on that surface? geodesics are fun to compute

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In reply to @CloudoidLtd

@CloudoidLtd look here: somethingorotherwhatever.com/kleinsteroids/… (I might have spent a bit too long on this)

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In reply to @CloudoidLtd

@CloudoidLtd I have written cleverer asteroids AI in the past: somethingorotherwhatever.com/?thing=antiast… wouldn't be hard to add that logic to this

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In reply to @plusmathsorg

@plusmathsorg curse you both, Navier and Stokes! (I'm copy-editing today. Accuracy is v important to me right now)

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Look what's just arrived! twitpic.com/6jzigl

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen aahh man, I thought you'd finally made a #mathmaths without me in, but at 46m there I am! Try harder next week.

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen #mathmaths 65: @christianp-free zone. Make it so. Don't even mention this tweet.

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In reply to @IOPPublishing

@IOPscience good stuff, but with MathJax turned on all inline maths is surrounded by dollar signs.

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This is your one-week warning for Newcastle #MathsJam! Bodega, Westgate Road, 20th September. @CloudoidLtd @elinoroberts @jjsanderson

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#MathsJam is a monthly opportunity for like-minded maths enthusiasts to get together in a pub and share stuff they like.

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Should be editing my paper. Made a buckyball icosahedron instead. twitpic.com/6k9fum

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Came into uni to do some work;now the whole office is playing with the buckyball. Nathan presents gateshead quayside: twitpic.com/6kb5gb

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In reply to @JanvierUK

@JSlayerUK find someone who makes cakes as well as you do, and start off charging a little bit less than them

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Yoww that's some good salad dressing! twitpic.com/6kg792

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don't spoon hot milk into the cocoa jar, cp.

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In reply to @peterrowlett

@peterrowlett @standupmaths is passing the "make sarcastic comments rather than actually complaining test" with flying colours though!

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In reply to @mountain_ghosts

@jcoglan man I wish that was something you could brag about to ladies :(

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In reply to @beefok

@beefok why oop?

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I love Juana Molina so much

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In reply to @daveowhite

@daveowhite @MarcusduSautoy @mathsinthecity going to make some stir-fryperbolae?

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A crow eviscerating a headless pigeon. Life in Tynemouth isn't all beautiful beach people and designer coffees. twitpic.com/6l9ymg

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In reply to @My_Metro

@My_Metro a loose spring in a metro seat just ripped my trousers :(

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how do hardware manufacturers get away with using the same driver installers they used for windows 95?

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In reply to @GreyAlien

@GreyAlien that isn't how shaving works! I think you've made a terrible mistake!!!!

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In reply to @aperfect

@aperfect I believe you know one or more Americans sroaudiences.com/application.as…

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I take a constitutional in the morning to warm my heart. This heavy-looking binbag on the doorstep of the vet's is not helping with that.

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I am living dangerously and downloading albums off emusic without previewing them first. Please send me tips so it isn't a complete disaster

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do I know any statisticians with babies? etsy.com/listing/737428…

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You don't expect to see this in the FAQ for a Bayesian analysis textbook: "why are there happy puppies on the cover?" indiana.edu/~kruschke/Doin…

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In reply to @brittneybean

@brittneybean I feel the only avenue left for you to express your feelings about this is a letter to the Times or a question in Parliament.

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Aarg, flat tyre! Thank god I managed to get off the central motorway. I would *not* have been able to cope with holding up that much traffic

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In reply to @elinoroberts

@elinoroberts good luck!

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happy saturday koalas showmenonstop.com/#koalas

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In reply to @beefok

@beefok swapping storage for computation. You'd end up caching the fractal anyway.

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can someone explain how svpply works now? What happened to the feed with all of everything on it?

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Scholarley is an android mendeley client that works! market.android.com/details?id=inf…

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In reply to @peterrowlett

@peterrowlett nobody wants to humour you.

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In reply to @peterrowlett

@peterrowlett PS: that is not something you can mention in this week's podcast

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In reply to @peterrowlett

@peterrowlett I would've gone with "irreproducable"

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last.fm is recommending music based on tracks I've only listened to on last.fm recommended! It is constructing its own version of who I am!

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In reply to @brittneybean

@brittneybean have you checked if you can get BE?

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In reply to @brittneybean

@brittneybean that is the worst reason for not having BE!

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In reply to @brittneybean

@brittneybean I've got the moving process down pat: move in, call BT, wait 2 months, complain to BT, wait 1 week, call BE, internet next day

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In reply to @aperfect

@aperfect @brittneybean that's because you were giving them more money. If it's the same or, god forbid, less, they don't care too much

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In reply to @mountain_ghosts

@jcoglan however my domain, somethingorotherwhatever.com, has been put to good use for several years now

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In reply to @rockhyrax

@rockhyrax your voodoo doll of me is strictly non-canon

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In reply to @rockhyrax

@rockhyrax "It is constructing its own version of who I am" ... "doesn't everyone" ... etc

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In reply to @brittneybean

@brittneybean I don't know, but you've reminded me I haven't looked at uniqlock in a while

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In reply to @brittneybean

@brittneybean beautiful dancers dancing like robots. It is like soma for autistic males

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there was a good sketch about the truth-telling/lying gatekeepers puzzle on John Finnemore's Souvenir Programme: bbc.co.uk/iplayer/episod…

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In reply to @brittneybean

@brittneybean that is just the beginning: twitter.com/#!/friendfromhs twitter.com/#!/PeanutFreeM… twitter.com/#!/zombiefreem…

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In reply to @elinoroberts

@elinoroberts well done! That was quick!

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how do you resist telling someone that their face reminds you of Frans Xaver Messerschmidt?

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on a related note, take note if you are desirous of my affections: apartline.de/catalog/produc… only 60 euros!

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In reply to @jjsanderson

@jjsanderson that's some good hashtagging. Good cycling too!

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In reply to @aperfect

@aperfect uhhh hello i have made my pictures arty by making them black and white because colours are the tools of the man

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In reply to @aperfect

@aperfect they're nice pictures though

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In reply to @georginabrett

@georginabrett is there any more to your site than the player thing? it's incredibly hard to read!

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In reply to @pianomaths

@pianomaths accessibility of things is not a Euclidian metric

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In reply to @standupmaths

@standupmaths don't like how that behaves asymptotically. How about, probability of not cutting yourself shaving halves for each hour?

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In reply to @matthen2

@matthen2 the Ashmolean has just been redone

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In reply to @moomerman

@moomerman your sinitter live demo is giving an internal server error

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Newcastle #MathsJam is tonight, 7pm, The Bodega, Westgate Road. The idea is, we sit in a pub and discuss enjoyable mathsy things.

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In reply to @ben_nuttall

@ben_nuttall only two, because we were all leaving.

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In reply to @JanvierUK

@JSlayerUK was it HDN? I think with them everything goes via Birmingham

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yowza! How has this much rain just suddenly appeared?

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In reply to @Htbaa

@Htbaa you too?!

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In reply to @peterrowlett

@peterrowlett could be going mid-Atlantic if my friend in the RFA decides to start one

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Dow Chemical is writing a big huge equation on a wall for some reason - giantchalkboard.com

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In reply to @HoeJodgkiss

@HoeJodgkiss EXCELLENT

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this is the future of sculpture: todayandtomorrow.net/2011/09/19/les…

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In reply to @alexbellos

@alexbellos @mathpuzzle @Grabarchuk if I've got it right, they're the common names for the combinators sufficient to produce lambda calculus

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In reply to @jamesgrime

@jamesgrime have you tried Virtual PC? microsoft.com/windows/virtua… Wine might do it on macs, but I'm not sure

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In reply to @Htbaa

@Htbaa yes, that seems to be wrong!

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In reply to @Htbaa

@Htbaa it just means there's no unique solution of the equation. Any value of a will work.

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In reply to @Htbaa

@Htbaa what answer did you get? If it's a single number, I wouldn't give you the marks

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In reply to @Htbaa

@Htbaa or 0=18, which is a contradiction. So I should have said there is no solution. Are you absolutely sure you copied the equation right?

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In reply to @My_Metro

@My_Metro that's it! Can't let this slide any more: *you're* using *your* wrong.

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In reply to @Htbaa

@Htbaa you had an accident before where that second 3 is now.

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In reply to @Htbaa

@Htbaa stupid predictive text! I meant you had an a before where the second 3 is now

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@AdamJackzon 9 Northumberland terrace, Tynemouth, ne30 4ba. We're currently at cragside, so come for 7.30. Bring alcohol if you require it

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In reply to @elinoroberts

@elinoroberts do you consult iain's shoelace website?

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In reply to @peterrowlett

@peterrowlett could we have a skype chat about your eassessment thing at some point?

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nexus, why do you need a captcha on the metro pass renewal form? To stop automated do-gooder robots from topping up people's passes?

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I used to think only Springer hated me and wanted me to remain ignorant, but now I need things from other publishers and they hate me too!

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"Lecture Notes in Computer Science" definitely sounds like the kind of thing we should have access to

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In reply to @alexbellos

@alexbellos "rhombic coiffure" sounds like something that would only come up in a CAPTCHA

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ok, I need to go to Shanghai! This is the single best thing on my arty maths blog: artymaths.tumblr.com/post/107227047…

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In reply to @peterrowlett

@peterrowlett how many different people were the emails from?

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downloading Bajka's concept album based on The Hunting of the Snark. It didn't sound great on preview but you can't ignore those ingredients

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In reply to @standupmaths

@standupmaths have you seen any of those Mega-RVs that tow an entire SUV behind them?

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In reply to @soupie66

@soupie66 @standupmaths Iwouldn't - that's not a \cdot!

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In reply to @peterrowlett

@peterrowlett to compute average emails sent per person

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In reply to @peterrowlett

@peterrowlett you said "am I part of the problem?" Spse one person sent you all 300+ emails. Then you're at most a small part of the problem

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In reply to @peterrowlett

@peterrowlett further: suppose each person sent ~equal no. emails to same no. recipients as you. Can then compare yourself to them.

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In reply to @jjsanderson

@jjsanderson @standupmaths paste this into your URL bar or make it a bookmarklet. It loads MathJax. Put TeX in $ signs. pastebin.com/p5Tqqtj5

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In reply to @jjsanderson

@jjsanderson actually, I can do better: this version allows repeated presses of bookmarklet for when new tweets appear pastebin.com/hRVZcVwR

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In reply to @kirel

@kirel has work stopped on the new version of detexify?

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In reply to @mathsinthecity

@mathsinthecity somebody is selling those bead polyhedra on etsy! etsy.com/listing/826142…

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In reply to @kirel

@kirel possibly. The new version's mainly javascript, right?

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In reply to @kirel

@kirel what needs to be done? Email christianperfect@gmail.com

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In reply to @mathsinthecity

@mathsinthecity my feet are getting all climby just looking at that

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In reply to @ColinTheMathmo

@ColinTheMathmo pointless but not pointless? Is this another clopen type thing?

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In reply to @ColinTheMathmo

@ColinTheMathmo oh man, should I have added a winky smiley on the end of that tweet?

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In reply to @ColinTheMathmo

@ColinTheMathmo you're just too helpful

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now I'm sad :( youtube.com/watch?v=Eg4s2-…

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In reply to @ColinTheMathmo

@ColinTheMathmo @mickybullock would a tablet connected to a projector do?

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In reply to @Gelada

@Gelada very interesting! Feedback is the big thing I'm thinking about at the moment

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In reply to @mickybullock

@mickybullock I'm thinking a tablet running a geogebra applet through jsxGraph, connected to a projector, would be a cheap alternative

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In reply to @ColinTheMathmo

@ColinTheMathmo @peterrowlett isn't that enough? Only you and he were the intended audience

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Even this early it's too hot! I'm going to stay indoors eating ice cream all day

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some or all of this bowl of coco pops tastes completely foul

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In reply to @plusmathsorg

@plusmathsorg forwarded to my bored optometrist friend. Maybe she will contact you!

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oh no! I bought apple _and mango_ juice because it looks the same colour as normal apple! I think I need a helper animal to do my shopping

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In reply to @brittneybean

@brittneybean just gonna sit back and bask in the glow of that shining example of marketing

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In reply to @aperfect

@aperfect you're lying to me and to yourself

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In reply to @mathsinthecity

@mathsinthecity compare this bridge en.wikipedia.org/wiki/File:Iron… (1781) to this bridge flickr.com/photos/aperfec… (1866) maths made it better!

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In reply to @mathsinthecity

@mathsinthecity slight correction: taken by the brother who prevents me from breaking his servers further.

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In reply to @mathsinthecity

@mathsinthecity would've added a snapshot, but not completely sure of bridge maths chronology. Forth bridges better show the progress anyway

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In reply to @mathsinthecity

@mathsinthecity forth and fifth tied, hence forth bridgeS

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Somebody please open a business in Tynemouth that isn't a cafe or a cafe-wine bar.

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forget Comic Sans guy, the MS dude I want to throttle is whoever wrote the zip-extraction algo. This 15mb file shouldn't take 20m to extract

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In reply to @standupmaths

@standupmaths @EliotBall there is no need! You can use MathJax on the normal twitter.com page: checkmyworking.com/?p=442

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October

Guy On A Buffalo - Episode 2 (Orphans, Cougars & What Not) youtube.com/watch?v=v5Lmkm…

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In reply to @aperfect

@aperfect meaning they're scoring points 66% faster than last year, which would've put them in a strong second place!

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In reply to @alexbellos

@alexbellos just heard the museum of curiosity trail where you brought a curta. You'll only push the price up; now I'll never own one!

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In reply to @alexbellos

@alexbellos don't make me do it! I'm trying to wait until a replica can be 3d-printed

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make an icosahedron with paper plates! wholemovement.com/index.php?opti… I will be trying this later, and maybe at the next #MathsJam

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"I have for the last twenty years been folding paper plates seeking to understand process and the comprehensive nature of the circle."

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In reply to @for_the_winn

@for_the_winn I don't think so. I was using jcarousellite, but it didn't like having different-sized contents, or changing contents

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In reply to @peterrowlett

@peterrowlett what happened to this week's #mathmaths?

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In reply to @peterrowlett

@peterrowlett you normally record on Saturdays and spam twitter with requests for news, that's all. If it's coming, I'm happy

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In reply to @HoeJodgkiss

@HoeJodgkiss your witty tweet reminded me of something I just about remember and have nostalgic feelings about! Two twitter points to you!

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In reply to @HoeJodgkiss

@HoeJodgkiss ok, but twitter points are pegged to the Somalian shilling at 1:1 conversion

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In reply to @Gelada

@Gelada I will try that with mine!

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In reply to @mathpunk

@mathpunk doesn't matter what a and b are - draw lines from C to points where AB intersects circle. A bit o' Pythagoras later, e is found

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In reply to @mathpunk

@mathpunk ok, that works

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In reply to @aaronpk

@aaronpk @mathpunk are you just trying to work out if a line intersects a circle?

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In reply to @aaronpk

@aaronpk @mathpunk then you want the distance of C from the line AB paulbourke.net/geometry/point…

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In reply to @aaronpk

@aaronpk @mathpunk and I think I've got some code somewhere for the same with halfspheres (great circles) if that's what you're really doing

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In reply to @aaronpk

@aaronpk too much to explain in a tweet, so I've written some notes: takenot.es/?line%20circle…, can expand if necessary

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can anyone recommend a reliable place to have an MOT done near Tynemouth?

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In reply to @aaronpk

@aaronpk well, I have some code at github.com/christianp/war… (lines 136-209 most relevant) my notes page is editable, so add any questions

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In reply to @ColinTheMathmo

@ColinTheMathmo are there spaces left for 5min talks at MathsJam 2011? Can't find the page. Would a non-puzzle talk on web maths tech be OK?

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In reply to @jjsanderson

@jjsanderson thanks, I'll give them a go

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In reply to @ColinTheMathmo

@ColinTheMathmo never mind, searched through your past tweets and found the form

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Just gave the car mechanic all my keys. Let's hope somebody's already in my office

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In reply to @peterrowlett

@peterrowlett I bet if you asked twitter nicely, you could raise enough skype credit to call @Samuel_Hansen's real phone an hour each week

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In reply to @Bishnavitch

@Bishnavitch are you back from Madrid? I forgot to send you that email, did you work out what the titles should be?

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In reply to @aperfect

@aperfect no! tiny face on big neck! top hat too small!

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rebuying Surreal Numbers cos I lost my copy. Amazon: "Instant Order Update for Christian. You purchased this item on 9 Aug 2003." instant?!

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I now know all that I need to know. en.wikipedia.org/wiki/Cross-lin…

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yow! Although Jeera makes the best curry, it makes the worst farts. I apologise in advance to anybody I am in the same room as today.

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Just put some ska-punk on my mp3 player, and set the volum to zero. That's right: I was playing Menger Spunge.

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In reply to @peterrowlett

@peterrowlett I thought the post-Math/Maths discussion thread was going well.

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In reply to @peterrowlett

@peterrowlett was it pre? There were posts with show notes

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I know I'd never use these, but they're so cool: a set of graph stamps betterlivingthroughdesign.com/accessories/gr…

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In reply to @MathsBusking

@MathsBusking what was that card trick with binary decisions you did at the @mathsinthecity event? I have a friend who is into card tricks

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How is yahoo groups so bad? Seriously, try to do *anything* on it..

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In reply to @JanvierUK

@JSlayerUK what's up?

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In reply to @JanvierUK

@JSlayerUK which is why I buy in bulk and spam the world with pens.

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In reply to @Bishnavitch

@Bishnavitch turn your phone on!

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Four videos have gone missing and now vimeo's uploader won't work. The universe just doesn't want this project to happen.

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In reply to @peterrowlett

@peterrowlett as someone who also hasn't read the Apology, some more quotes for the points you rebut would have been helpful

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In reply to @peterrowlett

@peterrowlett hyperlinks to gutenberg then? What's the point of making rules if you can't subvert them yourself?

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In reply to @peterrowlett

@peterrowlett pooey!

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In reply to @mathsinthecity

@mathsinthecity there's a very good article in the latest Cabinet magazine about wimples. Some good maths, too.

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In reply to @ThomasEWoolley

@ThomasEWoolley What counts as a brainteaser? Anything with a half-life ends up involving exponentials

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I think I would do just about anything for one of these chickens flickr.com/photos/andysin…

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In reply to @mathsinthecity

@mathsinthecity done. The chicken belongs to Hermès.

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maths-problem CAPTCHAs do pretty much the opposite of what you want

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it's Ada Lovelace Day. My mathematical heroine is my possible-relative Hazel Perfect, who was also a group theorist!

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In reply to @mathpunk

@mathpunk when I asked, @peterrowlett said to use skype call recorder: atdot.ch/scr/download/

0 favourites 0 retweets

In reply to @mountain_ghosts

@jcoglan depends on how long you live under the mistaken impression that they are bugs

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In reply to @JanvierUK

@JSlayerUK Equestria might be a principality?

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In reply to @aperfect

@aperfect put this on pianorama.ru

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Going to Westwood books in Sedbergh. Best bookshop for maths in the north!

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You're damn right it's better than Barter Books

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Blackwell's? More like Slackwell's!

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Excellent Minecraft world seed: 'bigglywiggly'. CHICKENS!

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In reply to @aperfect

@aperfect cook! food!

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In reply to @aperfect

@aperfect go! shops!

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In reply to @aperfect

@aperfect that little corner shop will still be open

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In reply to @peterrowlett

@peterrowlett if you're going to insist on mentioning me each week, you could at least plug my arty maths blog: artymaths.tumblr.com :)

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In reply to @jjsanderson

@jjsanderson my site often doesn't resolve with Be's DNS either. What could they be doing wrong?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett just to check - you are still in email hell and haven't forgotten about that eassessment thing?

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In reply to @mathpunk

@mathpunk the graph of flow of information is complete - any node can send/receive information from/to any other node

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In reply to @mathpunk

@mathpunk ok: the geodesic between any two nodes is either 0 or 1

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In reply to @mathpunk

@mathpunk ...where any two nodes are connected if they can send information addressed to each other

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In reply to @mathpunk

@mathpunk information-as-resource. What's the difference, anyway?

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In reply to @Bishnavitch

yo, @Bishnavitch, I'm really happy for you, and Imma let you finish, but Quake was the best game of the century

0 favourites 0 retweets

In reply to @gingerbeardman

@gingerbeardman no beard! I demand a refund!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths maybe it doesn't matter: does it have an old, be-clippied version of Office?

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In reply to @standupmaths

@standupmaths ahhh, I think this is one of those quirks about Gill Sans or some other London font... I'll try and find a link

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In reply to @standupmaths

@standupmaths it might be Johnston ask.metafilter.com/187854/Busspot…

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In reply to @mathsinthecity

@mathsinthecity will there be a mathsinthewrongcity.com for us commoners in the provinces?

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Even though I'm carrying a cake tin decorated with a pastoral scene under a rather chic umbrella, I'm a very manly man really. Ladies.

0 favourites 2 retweets

Vindication! @aperfect @fatfieldfoodie RT @schregardus: Researchers turn iPhone into 350x microscope on the cheap j.mp/oQHPYV

0 favourites 0 retweets

In reply to @mathsinthecity

@mathsinthecity a side effect of your RTing of me is that I noticed your no. of followers has rotational symmetry. A cause for celebration!

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so is the Rustici SCORM reference deliberately wrong? This has caused me masses of problems

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oh, so in fact the SCORM spec itself disagrees about what the multiple choice type is called. Thanks, American military contractors!

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In reply to @stecks

@stecks I would definitely leave some of those in the reception of our department, if I had some

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I think I've just contracted, like, cheese AIDS. That cheddar was *well* off

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at least the sour cream hasn't gone off. Jardine's kettle chilli will punish you if you do not provide it with accompaniment

0 favourites 0 retweets

In reply to @mikerustici

@mike_rustici interactions.n.type should be 'choice', not 'multiple_choice' - that's the name in the IEEE spec, not what you send to the API

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In reply to @mikerustici

@mike_rustici it took me quite a while of reading the spec to work out there's a difference. Still not sure *why* there's a difference

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In reply to @HilariousCow

@HilariousCow oh that is a hashtag that needs to just go on and on

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what do you do when you wake up early and read all your internets before you're ready to get out of bed? It's too cold to get breakfast

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In reply to @brittneybean

@brittneybean one of the many lesser-known discoveries that the Laboratoire Garnier does not get enough recognition for

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In reply to @aperfect

@aperfect oh no, burgers aren't the next _thing_, are they?

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In reply to @benkenyon

@benkenyon bravo!

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In reply to @HoeJodgkiss

@HoeJodgkiss john lewis stripes, down your flanks

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In reply to @stecks

@stecks the numbers seem to be in base 26.86!! That bill is ENORMOUS

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean she's got previous, viz. the Oops! I Did It Again video

0 favourites 0 retweets

In reply to @theyellowstereo

@theyellowstereo hooray the graboid! But as always, I've just let it play in the background and not note which albums I should look up

0 favourites 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen I want to send you a good maths teacher story, but Solid Britishness prevents me from being so earnest

0 favourites 0 retweets

In reply to @theyellowstereo

@theyellowstereo good picks, though! I don't think I'll mind having a second listen through

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In reply to @aperfect

@aperfect maybe they'll send you a diff so you can go to your branch and revert the changes. #versioncontrolpunsarethebestpuns

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In reply to @mountain_ghosts

@jcoglan "unusable"

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man, I thought I'd give the ballet at the theatre royal a go, but not at £30 I won't.

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really pleasant vector graphics/maths library in javascript paperjs.org

1 favourite 0 retweets

I've blogged for @acmescience. It contains 112% of your RDA of maths links, so share it with a friend. acmescience.com/uncategorized/…

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this might be the best group on flickr: South London Press sandwich boards flickr.com/photos/the_moo…@N22/

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In reply to @peterrowlett

@peterrowlett how long since you last did Benford's Law?

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WHY HAS NOBODY MADE A SEQUEL TO 1998 CROSS-PLATFORM HIT "GLOVER"? THIS IS MAKING ME SO ANGRY RRRRRRR

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In reply to @peterrowlett

@peterrowlett seems to be enjoying a resurgence. economistsview.typepad.com/economistsview…

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In reply to @peterrowlett

@peterrowlett not sure, but it's fun to talk about.

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also: WHY CAN'T I BUY A FALKPLAN OF THE UK? THIS IS MAKING ME EVEN ANGRIER !!!!RRR

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lovely fan-made Tintin title sequence vimeo.com/30402976 . Better than the 3d version, @MarcusduSautoy?

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In reply to @peterrowlett

@peterrowlett @pkrautz @Samuel_Hansen christian does not. Should I? I haven't listened to the latest math/maths yet

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In reply to @mathpunk

@mathpunk how about finding the pair of homophones of maximum Levenshtein distance?

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In reply to @Electrokittie

@Electrokittie water can't be compressed. So if you push one end of a full pipe, the force is passsed right through to the other end

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In reply to @pkrautz

@pkrautz I've looked at it before, and I find it a bit hard to read/parse.

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In reply to @pkrautz

@pkrautz the low-contrast colour scheme is my main issue. If you could get logos or author photos for the blogs, that would help too

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Reminder: Newcastle @MathsJam is tomorrow, 7pm, the Charles Grey, Monument. Puzzles, conjectures, weak jokes, etc.

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In reply to @jjsanderson

@jjsanderson @elinoroberts will either of you be at mathsjam tomorrow?

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In reply to @pkrautz

@pkrautz ummm... Technology? Eg MathJax, eassessment. Also: my blog ;)

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In reply to @pkrautz

@pkrautz could ask for pics from your featured picks each week, and build up that way. Most people will happily send their own in anyway

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In reply to @mattypsmith

@mattybeardsmith @Electrokittie yes, I gave a simplistic explanation. Air works, but less efficient because it's compressible

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At a tapas restaurant with unadventurous eaters. Somebody save me from myself before I NOMNOMNOMNOM everything

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I have a square number of followers, but that doesn't mean my followers are square! (some of them really are though, and that's ok)

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In reply to @mathsinthecity

@mathsinthecity STOP THE PRESSES! A colleague has discovered the millennium bridge is neither catenary nor parabola, but something inbetween

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In reply to @mathsinthecity

@mathsinthecity will investigate. And, I realised today that there's a polygon hiding in plain sight in the city centre davidhamilton.me.uk/photo_6343183.…

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@AdamJackzon that makes a completely unbalanced sleepytime top trumps card. Natty jimjams, out of 10?

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can anybody find some pictures of the models in the Hilbertsraum in Goettingen? My google-fu is uncharacteristically weak today. @Gelada?

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People who use a stall to do a wee just to avoid standing next to their fellow man at a urinal are bad people

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In reply to @aperfect

@aperfect goodreads.com

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In reply to @peterrowlett

@peterrowlett gooooo Peter! Gimme a P! Gimme an E! Gimme a T! Et cetera!

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fun-but-expensive: landofnod.com/games/toys-gif…

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In reply to @aperfect

@aperfect yes, but goodreads has proper import and export functions

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A post-it note dodecahedron, made by following @jamesgrime's instructions. twitpic.com/72pa6n

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let's try that post-it note dodecahedron again flickr.com/photos/christi…

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I've written up what we did at last night's @MathsJam: checkmyworking.com/2011/10/newcas…

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does anyone want to live in Tynemouth with me? I've had enough of my awful landlord.

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whoever's giving the young women of Tynemouth all these elocution lessons is doing a bad job.

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"Term rewriting and all that" is already 300 pages long but it could really do with having more words in it

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In reply to @standupmaths

@standupmaths "the first one after nought"

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In reply to @Amy1306

@Amy1306 it's a terrible feeling, getting the wrong thing out of a vending machine

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In reply to @trackinthebox

@trackinthebox someone said that flight facilities could tour indefinitely just playing Crave You and Foreign Language. I don't disagree.

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Stuck in the university library behind an apparently racist router that won't load anything from the US

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In reply to @peterrowlett

@peterrowlett I've seen one somewhere! I can't remember where though

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why did I offer to convert these word documents to HTML+MathJax? They're full of maths! I might go bogo crazy raaaa woooo

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overriding corporate CSS so it looks half-decent. Is "div.actualContentAreaNotGIFCornerImagesYouCompleteMorons" too long for a classname?

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I think I might find myself on Monday morning in the corporate web dev team's office screaming obscenities on the topic of semantic markup

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In reply to @brittneybean

@brittneybean it's at a negative co-ordinate relative on that scale - more like Michael Bay's 2005 yawnsplosion "The Island"

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the first year engineering Maths-Aid worksheets are finally making their way on to the web. ncl.ac.uk/students/maths… Thoughts, anybody?

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In reply to @brittneybean

@brittneybean before I found she was giving them the father's surname, I thought "Airy" would have been a better adjective

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In reply to @MathsJam

@MathsJam I've had a good response to my recap blog post about this month's MathsJam. Is anyone else writing up other meetings?

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draw commutative diagrams with MathJax! Incredible! homepage.mac.com/oasis/xyjax.ht…

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen eps when you leave it til last 10 minutes to mention me are THE WORST. I spend 30 minutes thinking I've won!

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In reply to @Electrokittie

@Electrokittie Pug Whisperer?

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I now have 200 followers, thanks to @edbradshaw!

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In reply to @gingerbeardman

@gingerbeardman I think you'll find it's Lykke Li who sounds like a poor Yukimi Nagano

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In reply to @NewcastleCC

@NewcastleCC is there a picture of the baby alpaca?

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In reply to @jamesgrime

@jamesgrime do you mean, "is it possible to do that with a shorter sequence than just listing them all"?

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In reply to @haggismaths

@haggismaths just googled dodecahedron colourings and your blackboards blog is on the first page! PS I have a blackboard pic if you need one

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In reply to @peterrowlett

@peterrowlett glad to hear it! Of course, if you're immobile, this is the perfect occasion to gab on skype about eassessment

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In reply to @benkenyon

@benkenyon aren't unemployed kids just kids?

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"this ticket allows travel on any permitted route" is not a good description of which routes are permitted

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WHY DOES THE PRICE OF ANYTIME TICKETS CHANGE THROUGHOUT THE DAY?!!!

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WHY DO YOU HAVE TO SAY WHICH STATION YOU'LL COLLECT YOUR TICKETS FROM?!!!!!!!!

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In reply to @Gelada

@Gelada have you ever met anybody from bielefeld?

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In reply to @Gelada

@Gelada oh no! the conspiracy has got you!

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In reply to @Gelada

@Gelada en.m.wikipedia.org/wiki/Bielefeld…

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I'm in the greggs concept shop. It's the same price as Costa and I can't see any pasties, so what's the concept?

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In reply to @aperfect

@aperfect but why!

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In reply to @aperfect

@aperfect why the phone

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This file is 1.44mb! I have an overwhelming urge to try to put it on a floppy

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In reply to @haggismaths

@haggismaths here's Nathan's blackboard flickr.com/photos/christi…

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just discovered ctrl-shift-delete is a shortcut to delete your history in google chrome. Google engineers must have something to hide!

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cross-posting the same announcement to the various outlets of my burgeoning media empire. First, my personal blog: checkmyworking.com/2011/10/resour…

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In reply to @haggismaths

@haggismaths he's the guy who sits next to me. Mega-keen PhD student, about to submit. You could link to students.ncl.ac.uk/nathan.barker/

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GOOD LORD Tintin is a beautiful movie!

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In reply to @GreyAlien

@GreyAlien this is why I don't like tau. e^(i*pi)=-1 is much more interesting

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looking at my referrer stats, I find I'm the second google hit for "pure math blog". I can only apologise

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In reply to @standupmaths

@standupmaths the childish acronyms are why I can't take American legislature properly. Then there's all the other stuff too.

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In reply to @mathshistory

@mathshistory wow, what a top chap!

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I was ready to get angry about slavery, but this made me angry about percentages instead: slaveryfootprint.org/survey/#whats_… Ratios! Not Percentages!

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you could say, that site made me DISPROPORTIONATELY angry!

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In reply to @peterrowlett

@peterrowlett ah! I was just telling Bill yesterday that we should CC-license our stuff

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In reply to @mathsinthecity

@mathsinthecity I forgive you for forgetting about it, but Little Professor is the BEST CALCULATOR OF ALL TIME sciencemuseum.org.uk/objects/comput…

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@nulibsage free workshop about Creative Commons and OER provided by HESTEM: hestem.ac.uk/event/he-stem-…

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In reply to @MathsJam

@MathsJam that is a mighty purdy postcard

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In reply to @GreyAlien

@GreyAlien there's no 'yet' about it. Pi is fine.

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we made it! We're in the future! youtube.com/watch?v=SqBw7X…

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now logged into four twitter accounts on my phone. Departing from consensus reality.

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when somebody doesn't say on their CV where they got their degree, does that mean it was Sunderland?

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In reply to @HoeJodgkiss

@HoeJodgkiss no. I won at Pogs in 1996 and now have all the best Pogs

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In reply to @Bishnavitch

@Bishnavitch battle lines have been drawn

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON Stressed Eric. He's due a comeback

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In reply to @mathsinthecity

@mathsinthecity and it was 10 when I was born, but I still owned one. If it was the other way round, *then* we'd be in trouble!

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has anyone else noticed that every Hermann Tilke track has basically the same final corner?

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In reply to @PumphreysMath

@PumphreysMaths I have an answer but is there some reasoning beyond informed guessing? n^2-80.5n needs to be +ve, so pick n=81...

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In reply to @stecks

@stecks more importantly: doctor who has 11 screwdrivwers? Needs to get himself a multi-tool

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Inspecting chocolate reserves. Pitiably low. Considering Bourneville in fridge. It's either that or the ice cream.

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@tomatron5000 @HoeJodgkiss "Bohemian Rhapsody" composed during frustrating round in which Freddie needed Europe & two other continents

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eating the Bourneville. Hate self.

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Why does Sunday Worship never come from a Quaker meeting house? I'd find that much more tolerable

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In reply to @MathsJam

@MathsJam could we link to my NCL recap post on the mathsjam.com page for NCL? Many people have said they don't get what MathsJam is

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In reply to @Samuel_Hansen

@Samuel_Hansen ahh man! Two days layer and I would've said yes

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In reply to @Samuel_Hansen

@Samuel_Hansen I'm in London 18th-20th - Acme Science team meeting/dinner?

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In reply to @Samuel_Hansen

@Samuel_Hansen Newcastle. I will be amazed if you go anywhere near

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got to the point where I hate my code and want to rewrite it all. Why was I so stupid in the past? Why couldn't I be more like me now, then?

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so this weekend, basically every girl I had a crush on between the ages of 5 and 13 got married.

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In reply to @ColinTheMathmo

@ColinTheMathmo I've written a thingy to look at probability of being a REPP: checkmyworking.com/misc/repps/ what am I looking at?

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In reply to @ColinTheMathmo

@ColinTheMathmo actually, I've got my maths hilariously wrong. Wait a mo while I sort it

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In reply to @ColinTheMathmo

@ColinTheMathmo I've fixed it now, but it's considerably less enlightening than I thought it would be

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In reply to @mathsinthecity

@mathsinthecity don't dumb down! "Whats sour, yellow and = to the axiom of choice? Zorn's Lemon" Only joke whose explanation makes it better

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In reply to @mathsinthecity

@mathsinthecity ∞ bottles of beer on the wall; ∞ bottles of beer; take one down, pass it around; ∞ bottles of beer on the wall

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Aaaaaaaaa did not want the fusebox to blow just as I get ready for bed on Halloween! Scary dark spookies

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In reply to @ColinTheMathmo

@ColinTheMathmo yeah, it hasn't been a successful day

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November

In reply to @jjsanderson

@jjsanderson no!!! They are my special treat!

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down with "in the sequel..."! mathoverflow.net/questions/3373…

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In reply to @ColinTheMathmo

@ColinTheMathmo just looked at my REPPs thing in IE and it was completely broken. Works now, but styling is knacked. Do you use IE?

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In reply to @ColinTheMathmo

@ColinTheMathmo ah! Does it work now? I'm using some brand-new javascript bits which needed polyfilling for old browsers.

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In reply to @ColinTheMathmo

@ColinTheMathmo ah jeesh, I forgot to upload the correct-maths version yesterday, and now I'm at work. I call an end to the whole endeavour!

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In reply to @haggismaths

@haggismaths that Chalk paper is going straight in my Interesting Esoterica collection. A gripping read!

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In reply to @RichardWiseman

@RichardWiseman this kind of thinking is suddenly endemic! I posted another instance this morning: plus.google.com/11130061692066…

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In reply to @TraineeGeek

@TraineeGeek @bertikusmaximus I'm not in charge of that blog! It's @haggismaths you need to talk to

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In reply to @TraineeGeek

@TraineeGeek furthermore, @haggismaths is a she

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when you have to give a formal grammar for your notation because you realised you never defined what a variable is #mathmoproblems

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Person in charge of my new flat has "very unexpectedly gone on maternity leave". Did she just plop it out on the bog, or what?

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In reply to @kenfodder

@kenfodder nope. Maybe my street will fall into the sea next.

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those of you impressed by this en.wikipedia.org/wiki/142857_(n… should read this mathdl.maa.org/images/upload_… (via @Math_Bits)

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In reply to @JanvierUK

@JSlayerUK man, I was thinking the same thing today but with pigeons instead of Indians and the pavement instead of America. #stillnotracist

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In reply to @pkrautz

@pkrautz I'm writing another post for acme science. I never got your point re mathblogging - does it supersede my posts, or what?

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In reply to @pkrautz

@pkrautz ah! Klaro.

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In reply to @pkrautz

@pkrautz maybe whoever's in charge of writing the email also has a power cut?

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while @Samuel_Hansen is doing a Tom Hanks in the airports of the western world I snuck into his blog and did a post: acmescience.com/mathematics/13…

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Loneliest dinner. twitpic.com/79xqzj

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you'd better believe I'm eating a box curry for one. I'm still available, ladies.

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In reply to @Samuel_Hansen

@Samuel_Hansen I wasn't sure if this was OK to post. It's a dirty story about math: untoward.livejournal.com/468565.html

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second time out: "The Internet Maths Aperiodical - temporarily a periodical" on @acmescience acmescience.com/mathematics/13…

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@A_Hiccup whoops, sent that from the mathsjam account and not my own. Sorry, other @MathsJam people!

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@A_Hiccup I'm not involved in the postcards. Did you post your code somewhere?

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In reply to @alexbellos

@alexbellos three thousand-twelve? Unsatisfactorily small, but I can't think of any more tricks

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New flat happy hooray!

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In reply to @ThomasEWoolley

@ThomasEWoolley well done! Did you see my last Aperiodical post about the rabbits? Your next job could be King of Rabbit Husbandry

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In reply to @alexbellos

@alexbellos could a Southerner get away with 'fifty-four fousand firteen'? Not sure if any American dialects do this so wording is a bit odd

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In reply to @mathsinthecity

@mathsinthecity to the maths joke seeker: you might like Tanya Khovanova's efforts: blog.tanyakhovanova.com/?p=372

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In reply to @ColinTheMathmo

@ColinTheMathmo friends?

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In reply to @haggismaths

@haggismaths oh no! I can only think this will end up producing horribly dense meatballs

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looking for investors in my new chain of kosher Argentinian steakhouses, "Gaucho Marx"

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!!! twitpic.com/7bprwv

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In reply to @ColinTheMathmo

@ColinTheMathmo just noticed you posted my Aperiodical on Hacker News. Thanks for that.

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Ha WHAT! In a facebook ad, GCHQ are offering £25,4446 "+ benefits". Is the Official Secrets Act a benefit? I make almost that much anyway.

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In reply to @peterrowlett

@peterrowlett shameless fishing for easy laughs on your podcast

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In reply to @MissJKDarcy

@MissJKDarcy is that a good reason to take a job?

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON anything good in the paper today?

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In reply to @standupmaths

@standupmaths Are you still planning on coming to NCL MathsJam this month? Also: you're still not following me so I can't DM you :(

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In reply to @stecks

@stecks so glad you agree! It really is a joy

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In reply to @JanvierUK

@JSlayerUK if that isn't a trendy pop-up shop idea I don't know what is

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In reply to @fadesingh

@fadesingh @Gelada as seen previously on my arty maths blog: artymaths.tumblr.com

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In reply to @stecks

@stecks isn't that actually 95% of what Twitter is for?

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I am in my new flat and so is all my furniture! Frabjous day!

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@AdamJackzon @Bishnavitch the future is in Palmersville

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watching a video of myself completely failing to notice I've done the product rule wrong for ten minutes. That won't help the students!

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In reply to @MarcusduSautoy

@MarcusduSautoy @sciencemuseum if the brick has no markings, isn't it just 6, mod symmetry?

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In reply to @brittneybean

@brittneybean "kickstyle" or whatever it was called

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going un poco loopy with no broadband and no energy to do anything else

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Call R from javascript, get plots back, amazing! opencpu.org/examples/

0 favourites 1 retweet

In reply to @brittneybean

@brittneybean too much white! every moment living in it would be overshadowed by the surely inevitable end-of-dream-sequence horrors

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In reply to @brittneybean

@brittneybean or, with your £2.6m, you could buy a really nice house up north and commute in by helicopter every day for the next 3 years

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has anyone got one of these? They look fun: oblospheres.com

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In reply to @jjsanderson

@jjsanderson is the M62 the one that goes reaally high up and gets loads of fog? I need to drive on it tomorrow and am worried

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Setting off for @MathsJam!

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It is an unseasonably warm day at #mathsjam. Will any activities be outside?

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In reply to @MathsJam

@MathsJam could we get urls from those people who put their hands up saying they have maths sites/blogs in my talk?

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In reply to @peterrowlett

@peterrowlett are you recording now?

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In reply to @cyberrhetoric

@cyberrhetoric thanks! Do you still live in the region?

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In reply to @simenspurkland

@simenspurkland go for it. Can't hurt.

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Fairly sure nobody has that name. #mathsjam

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In reply to @Tony_Mann

@Tony_Mann 3 statisticians hunting ducks. Duck appears. First guy shoots just to the left. Second, just right. Third: "got it!" #mathsjam

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In reply to @peterrowlett

@peterrowlett @mathshistory max dehn is my homie 4 life

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @MathsJam thanks for a great weekend!

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In reply to @Tony_Mann

@Tony_Mann that maths jokes paper: ams.org/notices/200501…

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the future of dance youtube.com/watch?v=3fy4cq…

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editing an article. Is "this sentence runs on longer than Mo Farah" acceptable constructive criticism?

0 favourites 2 retweets

In reply to @standupmaths

@standupmaths Whisky Galois #drammaths

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths did you like Whiskey Galois? I was so pleased I faved myself. It's a pun in a pun in a deft cultural reference! #megaproud

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @mathsinthecity which is why the original, "there are only three kinds of people..." is, though less clever, a better joke

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In reply to @JanvierUK

@JSlayerUK I'm conflicted. While Zwarte Piet defo has racist roots, there is a cartoonish joy that I wish we could enjoy without the nasty

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In reply to @JanvierUK

@JSlayerUK because, entirely on its own merits, a dude in a clown suit following Santa is excellent. The rest is what ruins it.

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In reply to @Electrokittie

@Electrokittie just enjoy it.

0 favourites 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen I've just listened to #mathmaths 73. I declare total victory!

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In reply to @Samuel_Hansen

@Samuel_Hansen Food episode? I can't even think what that is the auto-correction of

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In reply to @Samuel_Hansen

@Samuel_Hansen ahh. BEST EPISODE

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In reply to @Samuel_Hansen

@Samuel_Hansen maaaaybe.

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I've written a blog post with links to go with the talk I gave at #mathsjam: checkmyworking.com/2011/11/writin…

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this won't fit on my arty maths blog but it is fun: knstrct.com/2011/11/14/sol…

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maybe I need another blog called "I tried to get your maths into my art." Here's another: mathcraft.wonderhowto.com/corkboard/math…

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In reply to @ColinTGraham

@ColinTGraham hmmm... I'm not keen on equation editors like that. It's hard to tell where your cursor will go after keypresses.

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Newcastle MathsJam is seven days in the future, on the 22nd. @standupmaths will be joining us. Charles Grey pub, Monument, 7pm, as per.

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In reply to @jjsanderson

@jjsanderson that has reminded me to check up on my man who is meant to be watching progress bars

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In reply to @allysonlister

@allysonlister send an email to newcastle@mathsjam.com if you'd like to get a reminder before MathsJams in future months

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@nulibsage where and when?

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@nulibsage that's cutting it a bit close. I have to finish my hot choc then haggle with my old landlord before heading in to town

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@nulibsage yes please. Though arguably, since this convo is taking place on twitter, I might not need them? :)

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@nulibsage I'll tell you what you can do though: plug Newcastle MathsJam, 7pm next Tuesday at the Charles Grey mathsjam.com/index.php?cont…

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@nulibsage muchos gracias!

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Why is it that feeling tired, hot or angry all feel the same to me? Even when I know I'm only 1 of the above, my brain triggers the other 2

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going to have to bail on this clementine. I've eaten softer apples

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In reply to @mountain_ghosts

@jcoglan you'll have to send some dudes over to get them. They won't respond properly to a summons

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wow flickr.com/photos/sfschaf… #cantsleepbabyteethwillgetme

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today I am "office naked", which means I have taken my shoes off.

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#mathsjam postcards have been deployed to the reception of the school of maths and stats twitpic.com/7ex1m1

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A chomp bar costs a prime number of pennies, so you will usually be left with change unless you buy loads. Deliberate? twitpic.com/7ex6tl

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In reply to @brittneybean

@brittneybean golden opportunity to use a dagger for that footnote tweet... missed

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best bath! studiothol.nl

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Just saw a vicar blaspheme quite profusely after failing to get on the train in time

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is there such a thing as a third-party skype client? these IE script errors are the last straw with the official one

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Co-author has manually inserted linebreaks at the end of every line! Going to kill somebody!

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or maybe it was Google Docs. Will revise earlier vow: going to kill someTHING.

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In reply to @Bishnavitch

@Bishnavitch @enoFsamohT I had a dream about Howman last night. Seems now it was a prophetic vision.

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In reply to @stecks

@stecks maybe their maths-checker sent a comment pointing out wrong numbers, which they misinterpreted as a disclaimer

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In reply to @stecks

@stecks and the right-hand column header says "Sodium + chloride"!

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Crewe and Milton Keynes in the same week?! Truly this is the life I always dreamed of.

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In reply to @mattypsmith

@mattybeardsmith I had always assumed it was slurry in real life, cleaned up to look like whatever food it's meant to be in post

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In reply to @mathsinthecity

@mathsinthecity "stats are like a glovepuppet: you can stick your hand up them and make them say what you like, but only kids should listen"

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In reply to @JanvierUK

@JSlayerUK see me! When are the meetings?

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At least Stalin was *trying* to oppress his people through architecture #miltonkeynes

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A church! Have they not looked outside? There is no God. #miltonkeynes

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You know those programs that stitch together panoramas by recognising unique features in multiple photos? They would fail in #miltonkeynes

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Time and space have lost all meaning in #miltonkeynes. 1 dimension of despair and 3 of boredom are the axes I travel along now.

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#miltonkeynes: like being in a coma but there's nothing doctors can do to get you out of it

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A desperate man is taking photos of the buildings around him. Maybe when they're developed, he kids himself, I'll see something interesting

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I just farted. The people walking by are stopping to thank me for the sensory stimulation. #miltonkeynes

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I think I'm drinking coffee! What is 'chocamiento'?

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Loitering on the street, drinking a frijj. I'm as tough as any Londoner.

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In reply to @mountain_ghosts

@jcoglan they're not blocking it for me

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The horniman museum is really lovely!

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Compendia in Greenwich market sells mathematical games, including Set! Extensive dice collection, but not @jamesgrime's non-transitive ones

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In reply to @jamesgrime

@jamesgrime's judging by the prices of other dice, looks like they turn a meaty profit. You should get a piece of that!

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How is this train so hot?

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In reply to @jamesgrime

@jamesgrime actually, how come non-transitive dice weren't invented as a cracker toy by Victorians? How old is the three-dice set?

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I have an enormous smile on my face! Best art! juxtapoz.com/Current/in-la-…

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"Never attribute to malice that which is adequately explained by stupidity." - particularly true with North Tyneside Council

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attempting a herculean merge of two branches which agree with each other about as much as Newton and Leibniz did

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Schokozeit ist jetzt

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In reply to @ColinTheMathmo

@ColinTheMathmo there's a bit of an implication of cynicism there, which I don't think is warranted

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In reply to @ColinTheMathmo

@ColinTheMathmo take it up with him. Probably he likes the discussion, but isn't OK in his head with the idea of ill-posed questions

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In reply to @ColinTheMathmo

@ColinTheMathmo man twitter is bad for getting across subtle points! Do you get what I meant?

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Mega-merge seems to have worked, after very little fiddling. I am extremely wary.

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one of my bills has an account number "42924262". Very weirdly almost-symmetric. It doesn't feel like a real account number.

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oh COME ON, North Tyneside Council! Your Brokenola website is plumbing new depths - screenr.com/qLqs

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In reply to @tynesidecinema

@tynesidecinema that clashes with MathsJam! There are not enough days in the week for me to be as geeky as I want to be :(

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In reply to @tynesidecinema

@tynesidecinema well actually, the reason I'm interested in knitting club is that I have a book called "making mathematics with needlework"

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In reply to @elinoroberts

@elinoroberts oh no! I apparently can't hear it at my new flat. This makes me sad

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This woman has a face like that kind of dog that people who look like her own.

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oh man I thought I was still on for an early start! How is it eleven o'clock? This bedroom needs more natural light in it.

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Top maths fact: 85% of mathematicians who can solve Rubik's cube only learnt it because they felt it was expected of them.

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In reply to @MathsJam

@MathsJam was last night our last meeting of 2001? Are any crazy souls going to be MathsJamming on the 23rd?

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In reply to @MathsJam

@MathsJam of course I meant 2011...

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In reply to @MathsJam

@MathsJam heuff! No idea what part of my calendar I was looking at

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In reply to @standupmaths

@standupmaths that dice shop: compendia.co.uk . Not sure about business acumen but they definitely know their way round a profit margin

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In reply to @jamesgrime

@jamesgrime you have exceeded your bandwidth limit! Your website is down.

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In reply to @E_I_W

@E_I_W was the circles-inscribed-in-circles puzzle one of yours? Where did you get it from?

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In reply to @standupmaths

@standupmaths could I put copies of your pics from last night on my site? I'm writing a blog post and twitpic doesn't allow hotlinking

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I've blogged what happened at last night's Newcastle @MathsJam. Summary: too much! I need a lie down now.

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not one of the shelves in this kitchen is tall enough to accommodate a box of shreddies. How annoying.

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In reply to @vikkiiom

@vikkiiom second last Tuesday of the month, so the 20th. Not sure there will be many people around!

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In reply to @standupmaths

@standupmaths I heard that in weebl and bob's "I made this!" voice

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the multiplication table for the seven-dimensional cross product is the Fano plane! Best maths trivia! en.wikipedia.org/wiki/Seven-dim…

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one tweet couldn't contain how much of a smile that fact put on my face. This tweet will contain one big wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!!

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oh no, this site is really interesting but it's full of COMPLETE MENTAL valdostamuseum.org/hamsmith/clcro…

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In reply to @mike_geogebra

@mike_geogebra your picture is rotating! Has it always done that?

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time for a bacon, egg and everything else sandwich

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In reply to @IanMulvany

@IanMulvany I've made something similar, takenot.es but it exports HTML or LaTeX and does some clever things with embedding media

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all I want is an office chair that works on ratchets instead of stupid failo pneumatics

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In reply to @aperfect

@aperfect is thanksgiving the same day every year?

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In reply to @standupmaths

@standupmaths excellent timing. I've just finished some Hard Maths and will listen to that while my brainbox cools down

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In reply to @aperfect

@aperfect &#xNNN, where NNN is the unicode.

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In reply to @standupmaths

@standupmaths you make a lot of references to googling and things, so it would be nice if there were show notes in the post

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In reply to @mathsinthecity

@mathsinthecity and tweets! What have you got planned?

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In reply to @peterrowlett

@peterrowlett I've read a few bits. The maths video aggregating bit looked interesting, but no URL to the actual site :(

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In reply to @peterrowlett

@peterrowlett mm. Quite.

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In reply to @jimalkhalili

@jimalkhalili contrapositive is true but not converse! Descartes happily makes his way home

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AAAA I can not think of anything to go on my brother's birthday card! I've spent all afternoon and evening staring at it!

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Huf. I'm not proud of it, but at least it's something. twitpic.com/7j15fr

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aw man, just realised it could have been a chopping block for the geese, so try not to point out they can't grip a knife. #worstbirthdaycard

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In reply to @standupmaths

@standupmaths I tried to find a wordless plugin to hide spoilers but I could find no non-awful ones

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In reply to @standupmaths

@standupmaths ... wordpress, not wordless

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Tanya Khovanova: the most interesting woman in the world blog.tanyakhovanova.com/?p=382

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In reply to @ColinTheMathmo

@ColinTheMathmo "is irrational" is a negative statement, so what would a direct proof look like?

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In reply to @ColinTheMathmo

@ColinTheMathmo maybe sqrt(2) is irrational is a big fact

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In reply to @standupmaths

@standupmaths is this all leading up to a bit of viral advertising for @jamesgrime's dice? I think you've got a knack for business after all

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In reply to @ColinTheMathmo

@ColinTheMathmo thanks for plugging my post. What are you basing the assessment of popularity on? Doesn't look like you got many RTs

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In reply to @Electrokittie

@Electrokittie I'd always assumed it only stayed open because the scientists at the Centre for Life were doing an experiment

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In reply to @ColinTheMathmo

@ColinTheMathmo hah, well I haven't had that many hits, according to wordpress!

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In reply to @ColinTheMathmo

@ColinTheMathmo ahh, I thought you'd only posted it today. Mystery solved, time for drinkies

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Both tyne tunnels are open! When did that happen?

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if you make mathsy art from now on, it needs to be at least as good as this: artymaths.tumblr.com/post/133049762…

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"across a hundred and thirth street..." Everyone sing along now! You all know the words! twitpic.com/7jj8tm

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In reply to @CloudoidLtd

@CloudoidLtd I did not! It has occasional DNS issues, maybe that was it?

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I only discovered this halfway through, but it's a brilliant french sketch show on iplayer: bbc.co.uk/iplayer/episod…

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In reply to @haggismaths

@haggismaths this really short explanation of Godel might also be helpful: blog.plover.com/math/Gdl-Smull…

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aaaaa the government is spending the pension fund on motorways. I am going to die cold and alone in an underpass!

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how did this email, which even has the phrase "penis growth" in the title, get past my spam filter? Bayes is tutting at me.

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In reply to @Samuel_Hansen

@Samuel_Hansen bulkhead seat!

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In reply to @Samuel_Hansen

@Samuel_Hansen :(

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In reply to @aperfect

@aperfect date on the article?

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In reply to @standupmaths

@standupmaths no idea, but mad props for starting at CLUE-0. End nullophobia now!

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In reply to @standupmaths

@standupmaths BLETCHLEY PARK!

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In reply to @standupmaths

@standupmaths and here's the original, currently in the same room as the Bombe flickr.com/photos/christi…

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In reply to @Electrokittie

@Electrokittie who would read it?

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In reply to @Electrokittie

@Electrokittie that is a terrible, terrible idea

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In reply to @Electrokittie

@Electrokittie what's she done now?

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I'm hungry but there is no food in the flat. I'd better do my big shop then. #goingtobepoorsoon

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In reply to @standupmaths

@standupmaths oh. ho. ho.

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In reply to @standupmaths

@standupmaths great video! David, the chap who told me the puzzle, says there's a similar one in the new Prof Layton game on the DS

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In reply to @haggismaths

@haggismaths I'd be interested to see what you produce, if possible

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In reply to @haggismaths

@haggismaths I'm just after your impressions from using maple TA, really. E-assessment is my job.

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In reply to @TraineeGeek

@TraineeGeek what kind of phone is it?

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In reply to @MathsBusking

@MathsBusking I've been trying the 27-card trick with other bases (and numbers of cards, obvs) and it works without modification

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In reply to @TraineeGeek

@TraineeGeek if you get a replacement then get an android phone - contacts are stored by google!

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In reply to @jamesgrime

@jamesgrime @peterrowlett another group theorist! Are group theorists more likely to engage in outreach than other pure disciplines?

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In reply to @aperfect

@aperfect early adopters gonna adopt early

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In reply to @standupmaths

@standupmaths your video has prompted a considerable no. of people finding my blog through googling for the solution to the princess puzzle

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In reply to @MMPmaths

@MMPmaths great resources! Good that you use MathJax, but did you know JSXGraph does interactive Lotka-Volterra graphs? jsxgraph.uni-bayreuth.de/wiki/index.php…

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In reply to @standupmaths

@standupmaths ooh, I'd better edit out the incorrect solution then!

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In reply to @plusmathsorg

@plusmathsorg "50 mathematical ideas you really need to know" is excellent

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the personal appeals on wikipedia have taught me that wiki editors look like exactly the awful kind of people I always imagined they were

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In reply to @plusmathsorg

@plusmathsorg I can provide an extensive list of pop maths books to avoid as well, if that would help

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In reply to @plusmathsorg

@plusmathsorg I disagree about Godel, Escher, Bach - far too long and complicated to qualify as "popular maths"

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"These guys don't do anything. Kill them." - some brutal mathematics being laid down in this talk.

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In reply to @mountain_ghosts

@jcoglan I am just itching to break out the #unhelpfulneckbeardadvice tag.

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In reply to @mountain_ghosts

@jcoglan maybe when you have used linux enough to be able to offer #unhelpfulneckbeardadvice, you will find a beard has already grown

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December

Say hello to @mattybeardsmith's new friend twitpic.com/7mc25v

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Some helpful people have been explaining the origins of the princess in a castle puzzle on my blog - checkmyworking.com/2011/10/newcas… (spoiler warning!)

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON the saying is usually about three busses

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I wish I was German youtube.com/watch?v=ACkmg3…

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I have discovered the simple joy of taking pictures as I shave: twitpic.com/7miuj2 twitpic.com/7miull twitpic.com/7miuse

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In reply to @aperfect

@aperfect feh.

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In reply to @Bishnavitch

@Bishnavitch animalsbeingdicks.com/post/135900756…

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON it's people followed by people you follow. So, only advice, get better friends

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top fact: any word beginning with 'gr' is still a word when you replace the 'gr' with 'h' - grip -> hip; grand -> hand; grunt -> hunt, etc.

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grow -> how; ground -> hound; grumble -> humble; I think I'm on to something here

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In reply to @karenshancock

@karenshancock is this a cry for help? I'm going to intervene: if you eat too much bacon, eventually you will not like bacon any more

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In reply to @dmh10

@dmh10 oh no! You've inadvertently disproved the rule! Hab is not a word!

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ok everybody: I've done some Python, and the best prefix-swapping pair is 'no' -> 'u', with 4245 words.

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I've written a quicko blog post about the gr->h thing: checkmyworking.com/2011/12/grunt-…

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I have managed to turn up for a train 25 minutes early! Today is a red letter day! #cannycoldthough

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Why is there only a single-lane residential road out of York Uni campus?

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In reply to @stecks

@stecks there is twitter! Chin up, little Steckles!

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In reply to @Samuel_Hansen

@Samuel_Hansen I'm finally starting on another Aperiodical. It's going to be a good one!

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I have posted some more links and in-between bits on @acmescience! It's another Aperiodical: acmescience.com/mathematics/13…

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oh excellent, I'm on someone's who-my-friends-talk-to list. Second-degree renown!

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In reply to @peterrowlett

@peterrowlett re advent calendars, @stecks has non-mathematical YuleTube dl.dropbox.com/u/14337736/yul… and this beauty: plus.google.com/10564949960931…

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holiday puzzles - www2.stetson.edu/~efriedma/holi… (via @mathpuzzle)

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In reply to @elinoroberts

@elinoroberts prepare yourself for some major cold in Tynemouth. I had to zip my coat right up!

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In reply to @Bishnavitch

@Bishnavitch teehee, I have just watched and enjoyed that all over again

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In reply to @JanvierUK

@JSlayerUK what phone?

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In reply to @JanvierUK

@JSlayerUK my HTC has an option under Settings -> Language and Keyboard. Does yours not?

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In reply to @JanvierUK

@JSlayerUK oh dear! I am out of unhelpful ideas

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I just saw a shooting star! It made me happy :)

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In reply to @peterrowlett

@peterrowlett @stecks @Samuel_Hansen :< I'm a real boy!

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In reply to @standupmaths

@standupmaths I think that makes an APR of 214%. Depressing.

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The only time I experience regret is when I just miss a train and wonder whether everything I put in my bag before leaving needs to be there

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In reply to @tomnewton

@brittneybean @tomnewton or how about imtotallyoverthesecleverspanishdomainnam.es

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In reply to @peterrowlett

@peterrowlett his birthday always wooshes straight by in the Advent excitement so I'm never sure exactly what day it is

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Aaaaaaaaa this @My_Metro driver has a creepy quiet serial killer voice let me off let me off

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The beauty! Five intersecting tetrahedral, constructed by my supervisor (held by a very happy PhD student) twitpic.com/7oucw6

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In reply to @MissJKDarcy

@MissJKDarcy mars.wnec.edu/~th297133/fit.…

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Longing of the Leftist by the Mattson 2 is perfect music for winter at the seaside

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In reply to @MissJKDarcy

@MissJKDarcy be warned: making the bits takes an ABSOLUTE AGE

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In reply to @MissJKDarcy

@MissJKDarcy :O

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Having been put to shame by my supervisor, I am determined to make this myself twitpic.com/7owng4

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second attempt: I posted a load of interesting maths links on Saturday, at acmescience.com/mathematics/13…

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In reply to @JanvierUK

@JSlayerUK a toxic asset by any other name might smell more sweet to foreign investors #shakespeareredux

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In reply to @brittneybean

@brittneybean that can't possibly be real. wingèd has a grave accent, not an acute

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In reply to @BobKilometer

@Shan__Summer ??

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In reply to @BobKilometer

@Shan__Summer oh, are you talking about @numberphile's new video?

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In reply to @aperfect

@aperfect plugin! and/or! extension! memory leak!

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I don't get this biostatisticsryangosling.tumblr.com #realmendorealmaths #ladies

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I've made an interactive version of the princess-in-a-castle puzzle: checkmyworking.com/misc/princess-… (cc @standupmaths)

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and now I realise why I stayed up so late: I queued up four hours of classic Coltrane before I started programming. Euf.

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yesterday, for an hour and a bit, my supervisor said nothing, but I left his office with a solution to my problem. #maybetelepathy

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In reply to @stecks

@stecks I was expounding at length, yes

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In reply to @standupmaths

@standupmaths searching for CC-licensed images of princesses just made me depressed

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geodesic gingerbread house, for the forward-looking gingerbread man: notcot.org/post/44860/

1 favourite 2 retweets

In reply to @PumphreysMath

@PumphreysMaths what kind of rules about names of numbers will you impose? Because I could say "the biggest anyone else says, plus one"

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In reply to @PumphreysMath

@PumphreysMaths or "the biggest tweetable number, plus one"

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In reply to @EliotBall

@EliotBall good stuff! What did you need godel numbers for?

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In reply to @TraineeGeek

@TraineeGeek can you access this? tpt.aapt.org/resource/1/pht…

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In reply to @TraineeGeek

@TraineeGeek difficult! There have certainly been a few blind mathematicians. ams.org/notices/200210…

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you're damn right I'm in this month's .Net magazine

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correction to previous tweet: I'm [mentioned] in this month's .Net magazine [in passing]

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In reply to @peterrowlett

@peterrowlett crumb! that early! I send mine the Tuesday before

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I came in to work too early. Very tired.

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In reply to @peterrowlett

@peterrowlett are you posting "one from the archive" each day now?

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In reply to @gingerbeardman

@gingerbeardman I just bought it but the delivery email doesn't have a link. What am I missing?

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q1: where is my stapler. q2: where is my stapler. q3: where is my stapler. #milton

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I know I own a stapler! I can see it in my mind, just not in my eyes!

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more mathematical fashion in my latest Aperiodical: is it possible for everyone to wear the same clothes uniquely? acmescience.com/mathematics/13…

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Jimmy Wales: "If all reading this give £3 a month we would only have to fundraise one day a year" - I don't even know what that *could* mean

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In reply to @stecks

@stecks that makes sense.

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In reply to @jjsanderson

@jjsanderson is the problem that they have soft chocolate centres or that nothing in the bag seems to be a woodland creature?

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Somebody should make another game like Sub Culture

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the new emusic makes no sense and I can't see the red text on the dark background and just rrrrrrr

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In reply to @gingerbeardman

@gingerbeardman could you make the close button on the Wire Hang Redux window work? It's BMax, isn't it?

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JLS stands for "JLS Love Self-reference"

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In reply to @stecks

@stecks just realised what my problem with the wikipedia claim was: they would only need to do one day of fundraising EVER, not per year

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gottverdammt! Where can one buy a set of shoelaces of the right length and colour? Timpson's have got the better of me two times too many

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In reply to @stecks

@stecks actually twice, more to my shame.

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In reply to @brittneybean

@brittneybean it was a cloche call between that and a bawdy old carillon film

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just doing tech support for Gowers. Standard Monday morning. IT'S NOT THAT KIND OF MOUSE GOWERS PUT THE CHEESE AWAY

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In reply to @alisonkiddle

@ajk_44 sit in a pub on the 20th. Hey presto, Cambridge MathsJam! Or are you away on that day?

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In reply to @gilest

@gilest if it's silver or gold a metal detector probably won't help: van.physics.illinois.edu/qa/listing.php…

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Lexus drivers: stopping on a pedestrian crossing to avoid stopping on hashes is not an adequate solution to the problem!

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aargrgrgrgr the uni internet is so slow! They said they'd fixed it! Exclamation marks!!!

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time for a real number from Shamos! $2.38268343236508977172... \approx \frac{\sqrt{2-\sqrt{2}}}{4}=\sin\frac{\pi}{8}=\cos\frac{3\pi}{8}$

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if the previous tweet is hard to read, maybe my en-MathJax-ing bookmarklet will help: checkmyworking.com/2011/09/a-book…

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In reply to @mountain_ghosts

@jcoglan I'm going to tell you something, and your mind will reject it at first, but it is true: BLT pizza is amazing.

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In reply to @ColinTheMathmo

@ColinTheMathmo draw a view cone coming out of the eye. Draw arcs close and far. Object covers more of close arc than far one.

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In reply to @ColinTheMathmo

@ColinTheMathmo crumb! Take the opportunity to explain how the eye works as well. I'm intrigued to see what more direct explanation there is

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In reply to @peterrowlett

@peterrowlett @ColinTheMathmo @ben_nuttall for example: flickr.com/photos/christi…

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In reply to @mattypsmith

@mattybeardsmith call it accidental geocaching

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I do love hour-long tech support calls from my Nana just as I'm about to go to bed. I also like Canon's site returning 500 on every FAQ page

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Having baked Christmas crinkle cookie cakes, I realise all my cake tins are still at uni from last time. #niceboyproblems

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In reply to @stecks

@stecks I thought I had seen day 11's video enough times but your calendar was right to insist!

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!!!

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CultureMATH loons like an interesting Mathematical Gazette-ish journal, freely available online (but in french) math.ens.fr/culturemath/

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Gosforth people: is it seriously too much effort to walk the distance from Ilford Road to South Gosforth station?

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I've just sent out the email for December's Newcastle @MathsJam. It's next Tuesday, the 20th, in the Charles Grey pub

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In reply to @alexbellos

@alexbellos that is genuinely amazing

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well done to @plusmathsorg for explaining the Higgs stuff in terms I can understand

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In reply to @alexbellos

@alexbellos a google scholar search for the cyrillic spelling returns a few: scholar.google.co.uk/scholar?hl=en&…

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In reply to @alexbellos

@alexbellos ah, did you mean has anyone used one of his papers in the process of actual research?

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In reply to @alexbellos

@alexbellos oh well, can't help you there

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I also have this problem. We should form a group or a society or a militia

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In reply to @brittneybean

@brittneybean @aperfect I would like one for each word with "th" in it, reminding southerners that "th" is its own phoneme

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when your computer needs to sort some data, it calls on a gang of highly-trained Hungarian folk dancers plus.google.com/11130061692066…

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In reply to @ben_nuttall

@ben_nuttall @stecks The Lion King

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In reply to @brittneybean

@brittneybean finally, I can espress myself intelligently. Thank you!

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Brianna's caesar salad dressing is what you do to yourself when dinner is your last chance to have an interesting day

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"This SDHC Card is everything I dreamed of." - there must be more tedious product reviews on Amazon but I can't imagine what they'd be like

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In reply to @stecks

@stecks ok, but the review I was talking about was sincere

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In reply to @GhostMutt

@GhostMutt it's actually really good!

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In reply to @GhostMutt

@GhostMutt it's really responsive and driving is if anything easier than the pc version. This is on my asus transformer though

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In reply to @GhostMutt

@GhostMutt I'd check before you buy. My transformer with a tegra chip can't maintain a particularly high framerate

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Oaths and blasphemies! This email inviting all Newcastle postgrads to a trip out is 2MB purely because the sender used CC, not BCC!

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obsessive monitoring of site stats says my blog is top hit for "non transitive dice matt parker". Take that, @standupmaths and @jamesgrime!

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the correct recipient of your attention and money is, of course, mathsgear.co.uk

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I've finally done it: a mega-post on how we solved the princess-on-a-graph puzzle: checkmyworking.com/2011/12/solvin… (with pictures!) #MathsJam

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In reply to @ben_nuttall

@ben_nuttall hooray! doing what?

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In reply to @stecks

@stecks @aPaulTaylor I don't get it at all! I can normally do rebuses but I have no idea what the notation means here

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In reply to @christianp

@christianp @stecks @aPaulTaylor ah! 13 is "Jessica's first christmas", and the second word of 14 is "gentlemen". Maybe I will get it

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In reply to @brittneybean

@brittneybean if you're reading about renaissance mystics, look at "The Devil's Doctor" by Philip Ball

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200g of chocolate, get inside me. Then I will maths. #knackered

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does anyone know of a definition of "bound variable" in the context of lambda calculus or first-order logic that I could cite?

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In reply to @HoeJodgkiss

@Hulkjodgkiss I've had just about enough of your pop-ironic engagement with maths

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In reply to @HoeJodgkiss

@Hulkjodgkiss that's good. It turns out I don't even need that reference now.

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@blackboardhelp is there a changelog for the new version of the SCORM building block somewhere?

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In reply to @MathsJam

@MathsJam How should this sentence end? "You should come to MathsJam if: ..."

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@blackboardhelp I'm not an admin at my university, I just develop our scorm objects.

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Figure 1 of this paper is why statisticians aren't really mathematicians: math.wm.edu/~leemis/2008am…

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In reply to @peterrowlett

@peterrowlett the IMU has started "blogging" about the future of publishing: blog.mathunion.org/journals/?no_c… @pkrautz on the same: boolesrings.org/krautzberger/2…

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Leo's unreasonable setup

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I've never seen It's A Wonderful Life, Elf, or The Great Escape. I'm going to fix that this year. Have I missed any already?

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I don't know if that was an advert for a bad film or for a bad alcoholic drink. #crosspromotion

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In reply to @ColinTGraham

@ColinTGraham excellent! Thank you.

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I'm going to make a t-shirt with @peterrowlett on it saying "I have a little thing." #mathmaths #learntosegue

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In reply to @stecks

@stecks "It's not size that counts, it's how many you've got" - @peterrowlett

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just had a flash of inspiration about how to fix the bass on my speaker set: disconnect the subwoofer! Smooth listening from here on in

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ethical free-to-play games: replace the repetitive clicky mechanics with Mechanical Turk tasks which earn you money, so players pay nothing

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In reply to @elinoroberts

@elinoroberts what a good idea! The hot chocolate, not spilling it on a keyboard.

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twelve minutes in to my christmas shopping, I'd like to say how much I dislike people who don't put things back on the shelves properly

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I can't decide who released a more disappointing second album this year: Justice or Thomas Tantrum

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In reply to @aperfect

@aperfect no, you are wrong. None of the brooding menace or jumpity tempo of the first one

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In reply to @TwidgeMC

@AdrenalGBR I have an answer. Do you want it now, or at mathsjam?

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In reply to @TwidgeMC

@AdrenalGBR was it a problem you thought up or did you see it somewhere?

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the code in the comment to this post is the least Pythonic thing I've ever seen: blog.codekills.net/2011/03/18/pyt… esp. compared to the original

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In reply to @Dr_JAH

@Dr_JAH go on then. Sit in a pub in Cardiff tonight and do maths.

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Why are all these posh people in byker mcdonalds?

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It literally would've been quicker to drive back to Tynemouth and get the metro in than to park in the city centre.

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In reply to @peterrowlett

@peterrowlett I have yet to see a pictorial proof that was more macel marceau than cheeky five-year-old keeping mute

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Too many rubik's polyhedra!

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In reply to @ColinTheMathmo

@ColinTheMathmo nice post, but MathJax would make it nicer! In addition, your twitter button image is missing

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In reply to @ColinTGraham

@ColinTGraham because you can find them by searching for @MathsJam. People who don't want to see our tweets can just not follow us

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In reply to @ColinTheMathmo

@ColinTheMathmo really really? Email me, you're almost certainly doing something wrong. They work very hard on compatibility.

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In reply to @ColinTheMathmo

@ColinTheMathmo doesn't render at all or renders incorrectly? If latter, you might have conflicting fonts in your cache, eg old STIX fonts

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In reply to @peterrowlett

@peterrowlett tee-hee! they were both me!

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In reply to @peterrowlett

@peterrowlett oh, and could you please make it look like I didn't misspell "Marcel Marceau"? I'd like to blame autocorrect.

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In reply to @stecks

@stecks you are doing a wonderful thing. I haven't had a chocolate advent calendar this year so YuleTube has put a smile on my face each day

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In reply to @peterrowlett

@peterrowlett yes, I had a v slight change of mind. Young diagrams still need a little bit of explanation, so both statements are correct ;)

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In reply to @stecks

@stecks I failed to print out your eve-eve-eve-eve-etc calendar. That tickled me hugely.

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In reply to @ColinTheMathmo

@ColinTheMathmo is there a reason your intervals are closed, not open?

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In reply to @ColinTheMathmo

@ColinTheMathmo is website@solipsys.co.uk a correct email address for you? I sent you an email and thought you might reply to that instead

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In reply to @HilariousCow

@HilariousCow google+. Long-form microblogging.

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In reply to @standupmaths

@standupmaths I am learning so much science.

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I want these commentators on my side: youtube.com/watch?v=EqYgAX…

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In reply to @mountain_ghosts

@jcoglan are all your friends imaginary? You might be in a Fight Club-type situation, which would be good vis-a-vis desirable presents

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In reply to @MathsJam

@MathsJam idea: a google map so people who can't get to an existing mathsjam can put a pin in and see who else is nearby

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In reply to @jjsanderson

@jjsanderson Marshall's?

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In reply to @jjsanderson

@jjsanderson whoops, read that as fish and chips, not fish fingers and chips.

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another christmas treat: the best episode of the Mighty Boosh radio series is on iPlayer: bbc.co.uk/iplayer/episod…

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In reply to @standupmaths

@standupmaths given the quality of the books available, I reckon choosing one from around 13 each week would just about be satisfactory

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In reply to @mattypsmith

@mattybeardsmith !!! youtube.com/watch?feature=… !!!

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In reply to @JanvierUK

@JSlayerUK solution to any niche card-receiving demographic: blank art card + scribbled text

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In reply to @brittneybean

@brittneybean basically, all I want out of my thermostat is control of individual radiators and a web API. We can do this, it's the future!

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In reply to @brittneybean

@brittneybean well, now I know what my next arduino-based kickstarter will be

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The first AGM of the Tynemouth Mathematical and Pescetarian Society now in session. Chairing: N Barker, minutes: C Perfect

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First item on the agenda: approval of proposed Christmastime public awareness campaign

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Next item: discussion of "Estimation of bounding cuboids for seasonal gifts: theory and applications" C Perfect 2011

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Action: Mr Barker to man up and go for a paddle in the sea.

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primary teachers: make sure your kids know how to make a snowflake properly with this nrich worksheet: nrich.maths.org/5352 #snowfake

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pre-Christmas weight: 101.1kg. Taking bets on how much food I can fit inside me before the 27th.

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen amazed you had the presence of mind to pre-record some #mathmaths for Christmas. Good ones too, so far!

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In reply to @Samuel_Hansen

@Samuel_Hansen hah, as if I was listening last year.

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In reply to @Samuel_Hansen

@Samuel_Hansen patron saint of nonsense equations.

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In reply to @mattypsmith

@mattybeardsmith unless she's had some pretty tragic injuries, we can't be friends any more

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In reply to @peterrowlett

@peterrowlett completely shameless! Merry Christmas, old chum

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would anyone be interested in a pre-2012 super-lame boardgame night on the 30th?

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bepierced people: I bet you wish you'd got a pair of these for christmas: massitem.com/item/AQ-MS-1.h…

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In reply to @GreyAlien

@GreyAlien put on some clean clothes?

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In reply to @trackinthebox

@trackinthebox today's soundcloud link has been disappeared. Just in case any of you are working today. The youtube video is tops though!

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In reply to @JanvierUK

@JSlayerUK hahaha I have been watching it and there's nothing you can do stop me! #twiddleslighthuedmustache

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In reply to @oliverhumpage

@oliverhumpage @Gelada I've been feeling the need for something like that recently, something like a general-interest maths news site

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In reply to @KSCMaths

@KSCMaths here's something similar to think about: what percentage of all numbers have a 3 in? what percentage of triangles are acute?

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In reply to @walkingrandomly

@walkingrandomly how did CSS end up in that tweet?

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will I write December's #mathsjam recap post before it isn't December any more? It looks close!

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen math/maths was much more polite and genteel in the 19th century. And I wasn't born yet! More please.

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2012

January

so far, I am spending a statistically significant percentage of 2012 listening to kpop youtube.com/watch?v=3fy4cq…

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In reply to @standupmaths

@standupmaths nine days?

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Walking on frozen sand is a lovely feeling

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In reply to @mathshistory

@mathshistory established Greenwich AT the location of the prime meridian?!

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that was my least successful shave ever. #basicallystillhairy

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In reply to @Andrew_Taylor

@Andrew_Taylor precisely for that reason.

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In reply to @Andrew_Taylor

@Andrew_Taylor doesn't that make sense?

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my supervisor and I have got to the "vicious back-and-forth comments" stage of editing this paper

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on a related note: I don't like people who use a fixed line-width in TeX documents. I'm prepared to get into a big twitter fight about this

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In reply to @EliotBall

@EliotBall lines are max. 80 characters long.

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In reply to @EliotBall

@EliotBall yep

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In reply to @enchamade

@enchamade I mean in the source .tex, not the compiled document

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"Enthusiastic network marketer - born again pagan - I'm collecting cashback with Cashbackcard - are you?" - worst twitter bio? I felt sick.

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In reply to @peterrowlett

@peterrowlett the "born again pagan" bit worries - another symptom of poor critical thinking, or of a willingness to do anything for money?

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In reply to @ellenirites

@ellenirites I beg to differ: it was quite a popular middle name in 1911, viz. 1911census.co.uk/search/results…

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In reply to @ellenirites

@ellenirites in 1861 there was a Ms Peyton Luff of London

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In reply to @ellenirites

@ellenirites unlikely names are somewhat an interest of mine nameoftheyear.blogspot.com/2007/02/key-no…

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Watch in amazement as I completely fail to notice my tripod is falling over! youtube.com/watch?v=Z6_ION…

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In reply to @peterrowlett

@peterrowlett can you do it in any base? the @MathsBusking person who showed me said she couldn't. I was making a video to show how.

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In reply to @peterrowlett

@peterrowlett alright, I'll just go and make one then.

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In reply to @peterrowlett

@peterrowlett once the person upstairs has finished hoovering, of course...

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In reply to @peterrowlett

@peterrowlett sound insulation == be far away from objects making sounds. Right?

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any idea why my video is only uploading at 10k/s to vimeo?

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In reply to @TwidgeMC

@AdrenalGBR is it ok to post your 3x3 grid puzzle on my blog as part fo the december recap? I may be asking more questions as I forgot lots

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thanks to @aperfect, christian@hotmathematicians.com is my new email address. Next step: arXiv contact information!

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In reply to @Electrokittie

@Electrokittie snaggly frown :<

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similarly alluring addresses are available to sufficiently-hot mathematicians (contrapositive: not having one => not a hot mathematician)

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In reply to @Electrokittie

@Electrokittie well, I didn't need to see that! Yeesh.

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In reply to @ColinTheMathmo

@ColinTheMathmo of course I assume that, given the opportunity to have such a winning address, any hot mathematician will accept instantly

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In reply to @Electrokittie

@Electrokittie second-class Oxford degree. Borderline.

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In reply to @ColinTheMathmo

@ColinTheMathmo don't quite understand what you want, so have you seen traintimes.org.uk? maybe ask him where he gets his data?

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I've made a video: The Ace of Base (-three numbers) trick - vimeo.com/34478966

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In reply to @jjsanderson

@jjsanderson that's considerably more than I drove mine, I think.

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In reply to @peterrowlett

@peterrowlett @SallyRobin I was staring at this like mad last night, but then it clicked: (rot 13 code:) snpgbevny vf n hanel bcrengvba

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In reply to @TwidgeMC

@AdrenalGBR what was the name of your friend from Warwick?

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I had my legs crossed for too long and now they are dead! At some point soon I'll have to get up to make dinner oh me oh my what a to-do

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I've finally written up December's Newcastle @MathsJam: checkmyworking.com/2012/01/newcas…

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In reply to @stecks

@stecks there are MORE?!!! I thought the quicksort was the only one!

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In reply to @gingerbeardman

@gingerbeardman sadly, this particular instance of quantum levitation is fake metafilter.com/111217/Old-vid…

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In reply to @numberloving

@numberloving Simon Tatham's puzzle collection has a slitherlink game (called Loopy) that can do loads of shapes: chiark.greenend.org.uk/~sgtatham/puzz…

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In reply to @Andrew_Taylor

@Andrew_Taylor twitter automatically sends links through t.co these days

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In reply to @Andrew_Taylor

@Andrew_Taylor oh, but I see you meant "why does twitter do this?"

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In reply to @peterrowlett

@peterrowlett if you're not going to link to those dancers I will in the Aperiodical

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In reply to @peterrowlett

@peterrowlett it's deliberate spam not scattershot spam. If it was email it would be one message with many BCC. Only looks bad bc of twitter

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In reply to @peterrowlett

@peterrowlett but yeah, TEDx is a scourge

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In reply to @standupmaths

@standupmaths write pi in base 24; assign digits to moves. Will the cube be solved at some point? Doesn't follow from normality of pi.

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some interesting comments on my December MathsJam recap post checkmyworking.com/2012/01/newcas…

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In reply to @peterrowlett

@peterrowlett I've made a bajillion edits to my reply to your reply, in case you've already looked at it

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In reply to @JanvierUK

@JSlayerUK what's the essay on?

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In reply to @JanvierUK

@JSlayerUK and what's the title?

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In reply to @JanvierUK

@JSlayerUK do you have opinions on the matter?

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In reply to @JanvierUK

@JSlayerUK is that an essay's worth of opinion? I think so. Get cracking!

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON fines go up the more times you get caught, so this isn't a sustainable strategy

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somebody run at me with a knife while reciting the definition of plutôt, please

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interesting name, interesting guy! en.wikipedia.org/wiki/Lafcadio_…

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more interesting Victorians news: I'm reconsidering my opinion of Alexander Graham Bell mathcraft.wonderhowto.com/blog/alexander…

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In reply to @naomzzb

@naomzzb it's impossible to be cynical about that program

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In reply to @ellenirites

@ellenirites carry your DS at all times, in case we run into each other. I've heard Professor Layton has some very interesting maths puzzles

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In reply to @stecks

@stecks so does the reception team appear just as you're checking out?

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In reply to @stecks

@stecks so inconvenient! and I suppose if I wanted to convene a meeting that would also cause hilarious problems

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In reply to @aperfect

@aperfect google news alerts?

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Why oh why wasn't Zen recommissioned? I did so love his sexy crime-solving capers

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The research station at the south pole has a copy of The Thing... on Betamax - mikeygoingdown.tumblr.com/post/123182338…

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does there exist a decent free-ish or cheap-ish video editor for windows?

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In reply to @ellenirites

@ellenirites The Asda Delivery Man Always Knocks Twice (then eats your yoghurts on the way back to the depot)

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just submitted a new @gaussfacts.It's that kind of day.

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In reply to @charliesgames

@charliesgames I approve!

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In reply to @standupmaths

@standupmaths potential bonus-heckle re the podcast: "billion" was invented in 1475, but Greeks were talking about "myriads" well before

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In reply to @standupmaths

@standupmaths said heckle only valid if you were talking about people starting to think about big numbers, not just about the term "billion"

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the people at brume must be wondering why I order a new blackboard wall sticker every six months

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In reply to @ellenirites

@ellenirites with hollandaise sauce?

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learn how to speak cross-discipline with p257 of this excellent document: ets.org/Media/Research…

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What a long apple!

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In reply to @brittneybean

@brittneybean my dad does. He still runs his own Microsoft Exchange Servers in his garage though, so he might not have the best judgement.

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In reply to @MathsJam

Ok @MathsJam, if nobody else is going to do it, I will. Can I have a list of requested locations, so I can make a map?

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In reply to @peterrowlett

@peterrowlett I assumed @stecks would see that tweet, plus anyone else who's had enquiries. She knows how to contact me!

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In reply to @peterrowlett

@peterrowlett patience, Rowlett! It's the morning

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In reply to @stecks

@stecks super! @peterrowlett : poor show, your page on mathsjam.com doesn't say where you meet. Where is it?

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A map of current and potential @MathsJam locations: g.co/maps/yb88n (cc @stecks @peterrowlett)

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Stopped at Wetherby services. Leo is having topological issues with his jumper.

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@AdamJackzon yes, I did. An oldie AND a goodie!

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I have reached the South and I have updated the @MathsJam map with Nottingham, Melbourne and Portsmouth g.co/maps/f7rgs

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON that's the kind of completely equivocal recommendation I can really appreciate!

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In reply to @peterrowlett

@peterrowlett @stecks ok, I've added a bit to the bio saying to email manchester@mathsjam.com or tweet @MathsJam

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In reply to @christianp

@christianp @peterrowlett @stecks @MathsJam hah, see how "bio" has come to mean "bumf at the top of the page" in my mind!

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mathemategwyr Cymraeg and mathematoryon kernewek: there is a MathsJam-shaped hole where you live. Get on it! g.co/maps/f7rgs

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In reply to @peterrowlett

@peterrowlett 80 news: my nana was 80 yesterday. She'd love a math/maths shoutout

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Just been told the place for nana's 80th party today has a flock of alpacas in the grounds. Considerably more excited now.

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen to be very clear: I'm requesting a cp-ancestor mention. My policy on hearing my own name remains unchanged

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In reply to @elinoroberts

@elinoroberts some of these puns are pretty hock-neyed

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In reply to @mountain_ghosts

@jcoglan shave your moustache first, then sideburns, and beard last. #unhelpfulneckbeardadvice

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In reply to @mountain_ghosts

@jcoglan it's as if I spent the last year setting that joke up!

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Have found myself wedged under a table. Need to move out without pushing the table. Curse you, Newton!!!

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In reply to @Samuel_Hansen

@Samuel_Hansen you scoundrel! For a few glorious moments I thought you were both genuinely trying to avoid mentioning me.

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In reply to @elinoroberts

@elinoroberts ohh, don't you find that place a little bit creepy?

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Just passed an Austrian tourbus emblazoned with the slogan "Beat the Street". Do you think they meant "hit the road"?

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Whenever I see a full moon partially obscured by clouds, only four words and a guitar riff come to mind: TEENAGE! MUTANT! NINJA! TURTLES!

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In reply to @Rosalot

@Rosalot disagree. They were ninjas more than heroes, and the tory-era ban on nunchuks in the media was so ridiculous of won't perpetuate it

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In reply to @christianp

@christianp @Rosalot *I* won't perpetuate it

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In reply to @pkrautz

@pkrautz you now have 100 followers. Congratulations!

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In reply to @Rosalot

@Rosalot there was a moral panic about ninjas, hence "hero turtles". All the really cool kids knew the real name. en.wikipedia.org/wiki/Teenage_M…

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In reply to @Rosalot

@Rosalot PS my full signature book from universal studios, even with scary Casey Jones, hints that I am a bugger fan than you

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In reply to @Rosalot

@Rosalot ha! Bigger fan! Autocomplete hates me twice!

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what voodoo is this! webdemo.visionobjects.com/equation.html?… like Microsoft's math input panel but over the web

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In reply to @alexbellos

@alexbellos did you watch Sherlock last night? Thee floors in the secret lab were negative numbers followed by a B at the bottom

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In reply to @trackinthebox

@trackinthebox your 404 error page has an error. You're either meta geniuses or you didn't mean to forget the word "one"

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please make: a Civ-like game called "TORY QUEST" where it is your job to impede progress as much as possible (cc @PeterMolydeux)

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I've had just about enough of these Whigs and their stranglehold on longplay strategy paradigms

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Clothes collection chuggers: putting two bagsthrough our front door because we have two buzzers is almost Panglossian in its optimism

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MathsJammers: ideas for readily-available materials I can use to make a set of lominoes? schoengeometry.com/webbooklet.PDF

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High tension in PHD2 as Cushing attempts to fix the last couple of squares of the sudoku cube

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In reply to @stecks

@stecks I do not know what they are! Could you provide diagrams?

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In reply to @stecks

@stecks I don't understand that. It seems to leave everything unchanged.

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Solvèd! Thanks @stecks!

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I've added some good stuff to my Interesting Esoterica collection recently: mendeley.com/groups/519971/…

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In reply to @tylermath12

@TylerClark12 good!

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what's the opposite of a SQL injection? I clicked a button and this intranet site filled the page with the query it should have executed

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I like theorem statements beginning, "Suppose $P_1, P_2, ..., P_n$ want to play poker."

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well, I've ruined my landlady's wall and my blackboard sticker has bubbles behind it. That's just about the worst that could have happened.

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I hope this was worthwhile

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In reply to @Electrokittie

@Electrokittie what were you showing us?

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you're damn right the LaTeX I used in my tweet earlier gets properly typeset on my blog

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In reply to @Electrokittie

@Electrokittie hahaha that is excellent!

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In reply to @ben_nuttall

@ben_nuttall re poles on trains: I almost gave some kids a lesson in rotational inertia - jump and hold on to the pole when the train stops

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ok Dyson, when are you going to invent a bagless bin?

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@nulibsage the only freely-available definition of Fibonacci p-codes I can find is at comlab.uniroma3.it/marco/articoli… in Section III

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Tempted to use my phone's barcode scanner on this dudes neck to find out exactly what consumer product he felt was so important

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In reply to @Samuel_Hansen

@Samuel_Hansen have you seen the draft? I'm trying to marshall the energy to finish it. I have loads of links

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In reply to @Samuel_Hansen

@Samuel_Hansen can you get on Skype? Is it a reasonable time where you are?

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In reply to @peterrowlett

@peterrowlett an interesting email should currently be at the top of your inbox

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In reply to @stecks

@stecks good point, I'll send it to you too.

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In reply to @stecks

@stecks by publicly twittering peter, I was actually prompting people like you to remind me of should have included them

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I do wish my phone would stop rewriting 'I' to 'of'

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In reply to @peterrowlett

@peterrowlett as far as I'm concerned, that other email was responded to at mathsjam. I wouldn't mind if you *do* reply to it though...

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today I learned that at least one French mathematician thinks "Soazig" is a good name for a human baby

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I've done another Internet Maths Aperiodical. This one's a corker. acmescience.com/mathematics/13…

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In reply to @alexbellos

@alexbellos I did not think there needed to be another book on the subject after "the geometry of pasta"

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I'll ask just in case: are you getting all your tax credits?

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4music: come for Nicki Minaj, stay for the advert with women shaving their moustaches

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In reply to @standupmaths

@standupmaths quesclamation sounds like what dinosaurs did to reproduce

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON can't hurt to have a go at the questionnaire: hmrc.gov.uk/taxcredits/sta…

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In reply to @standupmaths

@standupmaths best you can do is 379. 379,397,739,9638 prime but 793, 973 not. Answers with repeated digits: 113, 199

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In reply to @christianp

@christianp @standupmaths well of course I meant 963 not 9638

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my 1177th prime birthday is the day after my 26th real birthday! Double festivities!

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In reply to @christianp

@christianp and I should read my computer better: 149 also has 4 prime permutations

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In reply to @standupmaths

@standupmaths my method (in Python, of course!): gist.github.com/1594133

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In reply to @mountain_ghosts

@jcoglan ctrl+shift+v

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In reply to @mountain_ghosts

@jcoglan I think the behaviour has just changed to formatted-by-default recently. It's been annoying me too.

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In reply to @elinoroberts

@elinoroberts <~~ little poke about maths making?

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the difference between 'condescend' and 'patronise': to 'condescend' is to act haughtily; 'patronise' is what you should do to Deli Bar One

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spend five minutes checking something works in a Python shell before realising your app is written in Ruby

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In reply to @HilariousCow

@HilariousCow haha, saying "I'm always in trouble" while riding a skateboard is so massively 90s

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In reply to @stecks

@stecks could my MathsJam map go somewhere on the website?

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hey, one header in this Word document inexplicably written in Consolas - you're my favourite

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In reply to @brittneybean

@brittneybean I'm curating last night's dinner in a hot new venue.

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Further adventures with poorly-chosen tripod positions youtube.com/watch?v=ls_sGr…

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In reply to @acmescience

@acmescience do you read Cabinet too? My love for it is unbounded.

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In reply to @alexbellos

@alexbellos I did a similar bit of computation-with-a-dictionary: checkmyworking.com/2011/12/grunt-…

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made chilli. Don't have any sour cream. If I don't make it through tonight, tell Janelle Monae I love her.

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In reply to @Tony_Mann

@Tony_Mann don't you mean Nature Valley 3, then?

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In reply to @mountain_ghosts

@jcoglan because when you ask that question you end up with madore.org/~david/program…

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In reply to @CloudoidLtd

@CloudoidLtd could well be. They certainly offer both boxes and sandwiches

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I think this guy would like to know if anyone is looking at his site: date12122012.blogspot.com

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I don't want to be awake now!

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In reply to @peterrowlett

@peterrowlett well, that's still data

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Today I am (I think) wearing pink on yellow. Do I need style advice or am I a Fashion Maverick?

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In reply to @brittneybean

@brittneybean photosofvinylalbumsheldinfrontofmacbooks.tumblr.com

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In reply to @brittneybean

@brittneybean @trackinthebox so happy birthday from me too!

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Changed his mind.

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In reply to @stecks

@stecks don't make me go to hobbycraft! That is a slippery slope I wish to remain at the top of!

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In reply to @plusmathsorg

@plusmathsorg if you're going to explode, do it on one side of the Atlantic and not in-between. They frown on that sort of thing

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I'm an evil genius: I have decided to make a rubik's cube with ratchets in, so each face can only turn one way

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In reply to @EliotBall

@EliotBall yes, but the look on someone's face when they first encounter it will be priceless

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In reply to @EliotBall

@EliotBall or: can you think of a set of interlocking ratchets that restrict the number of positions the cube can be in?

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David claims that this is a tetrahedron

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@RachaelBailes the only job title where a prefix of "she-" is acceptable is "Hulk"

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ok, bake caking time

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I hardly ever do #ff, but I will today because his blog is pretty interesting: Twitter, please pay attention to @outofthenorm2

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In reply to @mathshistory

@mathshistory I baked a cake today for my birthday tomorrow! I missed a golden opportunity to make a Menger sponge! Woe!!!

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dear Newcastle ISS: this is not acceptable content for your root apps site: apps.ncl.ac.uk

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ahh, I forgot to tweet this yesterday: yesterday's date was a palindrome in base-13

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In reply to @aperfect

@aperfect I want examples

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In reply to @Samuel_Hansen

@Samuel_Hansen aww, you deleted the crazy man's comment on the blog :(

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In reply to @Samuel_Hansen

@Samuel_Hansen is this a network q: how long should it take a service to have most things you'd want on it? Eg wikipedia, youtube, the web

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In reply to @Samuel_Hansen

@Samuel_Hansen indeed. It feels like something that would be fun to work out a methodology for.

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Never change, Nana.

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Oh my god, I've just looked inside:

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The Christiansmas festivities are off to a fine start with the traditional goose parade youtube.com/watch?v=wK-YHT…

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Remember to check your programme so you don't miss out on any of the fabulous Christiansmas activites throughout the day

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I've gone a bit silly with old age.

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In reply to @ellenirites

@ellenirites you look wide-awake to me

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In reply to @Rosalot

@Rosalot would you like a lecture on queuing theory? It's very interesting, I could go on for ages

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In reply to @Rosalot

@Rosalot there is an optimum queue length they want to maintain at all times. So they change the staff levels as incoming call rate changes

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In reply to @standupmaths

@standupmaths @TimandraHarknes you're not going above Harrogate? I was about to drum up some PhDs to see you!

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In reply to @TimandraHarknes

@TimandraHarknes @standupmaths one of the aforementioned PhDs is also a standup. I will enquire.

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I just thought to try j/k to scroll through tweets. It's a @Christiansmas miracle!

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @pixie359 well, @peterrowlett did basically that in his Travels in a Mathematical World podcast

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In reply to @pixie359

@pixie359 but he got his facts from numbergossip. So listen to his podcasts anyway, just not for this reason.

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I'm going to sell savoury pastries under the name Quiche Thegwin.

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my Gauss fact got on the site!

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Did anyone else feel physical pain trying to parse this "graph" in the Observer New Review today?

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In happier news, this is what my mum got me for my birthday. Trust me, I have a plan.

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In reply to @jjsanderson

@jjsanderson forget pens, the first writing implement I would import would be Hagoromo "Fulltouch" chalk: mathoverflow.net/questions/2626…

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In reply to @peterrowlett

@peterrowlett stop tricking me into clicking on your old posts!

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON *discreetly unfollowed*

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON its not that I don't think you can kick the habit, but just to be safe...

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON cold hard science

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In reply to @peterrowlett

@peterrowlett while I've got you - do you have any thoughts about that thing?

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In reply to @karenshancock

@karenshancock I have been wondering exactly the same thing

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some nice 3d-printed models by Rinus Roelofs: rinusroelofs.nl/sculpture/rp-m…

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In reply to @ellenirites

@ellenirites are you going mad with instagram again?

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Baaanach-Tarski instagr.am/p/hMHiP/ (thanks @ellenirites and @Bishnavitch)

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In reply to @standupmaths

@standupmaths I used to think I did, but since I moved away from home and kept the same detergent, it cleared up

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In reply to @peterrowlett

@peterrowlett there's a chat window and comment boxes. I'm in there now.

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In reply to @plusmathsorg

@plusmathsorg subjects of the British Empire do not have a terrifically good record with world domination plans that begin in Massachusetts

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AAAAAAAAAAA WHY DOES IE CONTINUE TO EXIST

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@Nathan1123 the thing I'm making has to support IE

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@Nathan1123 your tweet arrived simultaneously with me fixing the bug. Hooray for a coincidence!

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@Nathan1123 I've been working on this for two years. This is just the latest bug.

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just now, while sat at home, about eight miles from the university, my computer told me "more information is needed to connect to eduroam"

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This is a fun sundial. A fundial. mateturismo.wordpress.com/2012/01/17/el-…

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In reply to @haggismaths

@haggismaths could you add the things on your trail to mathsinthecity.com ?

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In reply to @standupmaths

@standupmaths my activities are not uniformly distributed throughout the year

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reading wikipedia like a boss. Finally A-Level French is paying off!

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In reply to @peterrowlett

@pkrautz (@peterrowlett @Samuel_Hansen) do one this week. I still haven't "hung out", so I'll look in. Why math/maths, not your own thing?

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In reply to @JanvierUK

@JSlayerUK your correction was about my MP!

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ahhh this algorithm would be so much easier in Haskell but I'm working in javascript and I just want monads why is life so hard :( :( :(

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oh hello, cutting-edge web-based exposition: igstan.ro/posts/2011-05-…

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In reply to @Tony_Mann

@Tony_Mann @peterrowlett however, I found Newton's college notebooks that were put online quite readable.

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In reply to @peterrowlett

@peterrowlett @Tony_Mann the Cambridge one, I think. Whichever one @acmescience linked to.

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In reply to @acmescience

@acmescience @Samuel_Hansen your two accounts' profile pics are facing each other. It looks like you're having a conversation with yourself

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In reply to @trackinthebox

@trackinthebox when you redesign, could there be a way of listening to all the last week's tracks without clicking between pages?

1 favourite 0 retweets

In reply to @brittneybean

@brittneybean I think that's the first tweet I've sent you whose response didn't match the regexp /@christianp (ha)+!*/

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In reply to @alexbellos

@alexbellos at the very least it's in PSPACE

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Midday. Poo and a shower, then clothes. #livingthedream

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In reply to @peterrowlett

@peterrowlett before I read that, can I just say how nice it is to have a project report site with no design rubbish on the page

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In reply to @HilariousCow

@HilariousCow I don't know, and please don't RT the answer because I don't want to know

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In reply to @TwidgeMC

@AdrenalGBR go on then. Are you sure it's difficult?

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In reply to @TwidgeMC

@AdrenalGBR oof, that's not a programming problem, I don't think. Is it OK if I retweet from the MathsJam account?

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In reply to @TwidgeMC

@AdrenalGBR also, I want to fix your notation but I'm doing something else at the moment

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6 hours of concentrated thinking = lambda operations in my algebra system while preserving implicit multiplication. Need a lot of drinks now

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These are the fiercest waves I've ever seen here. Where are the surfers? Are these waves TOO fierce?

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In reply to @Bishnavitch

@Bishnavitch what what?

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In reply to @elinoroberts

@elinoroberts I'm a tall man, as you know. For a moment I considered the possibility that I might get blown out to sea.

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In reply to @daveowhite

@daveowhite @mathsinthecity I would replace my Ampelmann umbrella with a Maths Dave one in an instant

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In reply to @skrivr

@skrivr I've just got an invitation and started a blog. Page loads and sync seems to be failing. Are you under heavy load?

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In reply to @skrivr

@skrivr ok. Is there any reason why that would make the settings pages or even the 404 page not load fully?

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In reply to @skrivr

@skrivr and does the fact you know that mean you can look in my entire dropbox folder?

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In reply to @acmescience

@acmescience I did not know you were doing this! It alone has made relatively prime worth the money.

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In reply to @acmescience

@acmescience then I'm glad I gave you so little money. I got an excellent deal!

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In reply to @stevieb

@stevieb How have we not bumped into each other at conferences? Thought you got a job after your MMath, had no idea you were doing research

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In reply to @skrivr

@skrivr yes, it looks like it's working now, thanks

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In reply to @HilariousCow

@HilariousCow this just in: women also shave.

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In reply to @stevieb

@stevieb I'm doing more jobs than would fit in a tweet, plus a PhD on group theory / computability

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In reply to @stevieb

@stevieb somewhere in the middle. I'm self-funding and part-time, so no idea when I'll finish

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In reply to @mike_geogebra

@mike_geogebra @davidobrador shapecatcher.com lets you draw the character you're after.

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In reply to @danaernst

@danaernst skrivr.com/christianp/ it's very flakey, which is why it's still in beta, I suppose.

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In reply to @danaernst

@danaernst I don't really have a need for it, because I've got my own proper wordpress blog and takenot.es for quick notes

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In reply to @danaernst

@danaernst yes, I have christianperfect.calepin.co - I just signed up to help Theron get MathJax going, really

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In reply to @danaernst

@danaernst checkmyworking.com . My workflow is to write stuff on takenot.es (instant TeX preview!) then copy it straight into wordpress

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new year's resolution: get over my infatuation with clever domain names. hotmathematicians.com will be my last one, promise.

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when did I download this album? It's pretty fun! It's by The South Trio.

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This summer in cinemas: Iron Man, the Iron Giant and the Iron Lady are... STEEL TEAM SIX

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Sorry, I couldn't think of three more metallic neocapitalists/destroyers of industry

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In reply to @aPaulTaylor

@aPaulTaylor could your game be rewritten in javascript?

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Yavalath, a computer-designed board game: cameronius.com/games/yavalath/ (via @outofthenorm2, whom you should #ff)

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In reply to @peterrowlett

@peterrowlett you have a doppelganger at Newcastle University! Aaa that freaked me out!

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In reply to @stecks

@stecks @aPaulTaylor is that the co-op membership form? I remember it had an exhaustive list of titles

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In reply to @Bishnavitch

@Bishnavitch soon, Muthurangu, soon.

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In reply to @outofthenorm2

@outofthenorm2 the hairy ball theorem is an excellent choice for a barber

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there is a name for the happiest mode of transport: en.wikipedia.org/wiki/Stotting

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"90-95% of indigenous peoples were decimated by European diseases" - a scholar of the humanities on BBC4

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Arg, this is a bad documentary about a really interesting subject!

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In reply to @ellenirites

@ellenirites there's a way of preventing that... #unhelpfulnonsmokeradvice

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In reply to @peterrowlett

@peterrowlett Gowers is rallying people to boycott Elsevier, and the traffic to his blog is spilling over to mine a bit gowers.wordpress.com/2012/01/21/els…

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In reply to @peterrowlett

@peterrowlett oh man, that's what I get for replying before reading all the way up my twitter feed

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In reply to @peterrowlett

@peterrowlett because he has a link to my MathJax bookmarklet on the sidebar :P

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In reply to @peterrowlett

@peterrowlett better than being just "a tool"

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Missed my mouth, got toothpaste on my face. #dyspraxia!

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Whoah, that Ben & Jerry's van up at Cullercoats is a bit optimistic.

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In reply to @EliotBall

@EliotBall the Chrome developer tools are very good

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In reply to @EliotBall

@EliotBall good stuff. Do you know about prototypes in javascript?

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In reply to @EliotBall

@EliotBall it's just a good idea to declare methods in the prototype rather than in the constructor

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Rrgrgrggg, Flash music download widget!! Share my outrage, @brittneybean!

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In reply to @EliotBall

@EliotBall gist.github.com/1657503

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In reply to @brittneybean

@brittneybean wasn't even the audio. I just wanted to middle-click the provider's logo to see who they were.

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In reply to @EliotBall

@EliotBall I've just added some explanation at the top of the file

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I look at the publications list of someone like Zeilberger or Svante Janson and I think, what's the point. Let them discover all the facts.

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why is copying text from PDFs such a hassle? Can't the information about, for example, where the spaces between words are, be kept?

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In reply to @Andrew_Taylor

@Andrew_Taylor It's a problem pretty much unique to PDFs. Most of these files are generated by LaTeX, from the looks of them.

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In reply to @Andrew_Taylor

@Andrew_Taylor I *think* that the reader program has to infer the presence of spaces from the positions of glyphs on the page.

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In reply to @Andrew_Taylor

@Andrew_Taylor the problem is that a pdf is just a list of where to put symbols on a page, not a coherent representation of the text

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In reply to @stecks

@stecks could the link to my MathsJam posts on the Newcastle MathsJam page be changed to the category listing? checkmyworking.com/category/maths…

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In reply to @christianp

@christianp @stecks actually, I've realised that category has non-recap posts in it. This one, please: checkmyworking.com/category/maths…

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I'm trying something a bit ambitious on my blog: a summation of my interesting esoterica collection checkmyworking.com/2012/01/intere…

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In reply to @acmescience

@acmescience do you know that none of the links from the C&P Classic RSS feed work?

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In reply to @CloudoidLtd

@CloudoidLtd I don't think I have! You should post a comment with a link to it.

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I can see really faint aurora stood on the point at the bottom of longsands beach

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Man, the people in that plane must be getting a good view

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In reply to @jjsanderson

@jjsanderson should've stayed in Tynemouth! I got out just as it was reaching its peak.

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In reply to @Samuel_Hansen

@Samuel_Hansen can I just say what an excellent job you did on the podcast this week, in my opinion.

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In reply to @JanvierUK

@JSlayerUK BECAUSE POOR PEOPLE ARE GETTING ALL THE MONEY DON'T YOU GET IT

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In reply to @acmescience

@acmescience haha, that's an excellent idea

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to do a global find and replace on a file and have it compile correctly immediately afterwards is a sublime joy.

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In reply to @Samuel_Hansen

@Samuel_Hansen that's a mighty short post on your blog there, Samuel. Ephemeral, I'd even go so far as to say. Not that it's a bad post...

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today's grand insight: $x - y = x + (-y)$. I'm a good PhD student.

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In reply to @ellenirites

@ellenirites Old age is pretty fun. You can walk into a place like you know what you're doing with your life and nobody calls you out on it.

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In reply to @standupmaths

@standupmaths please, get some MathJax on that blog!

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In reply to @standupmaths

@standupmaths also, use the <code> tag (the wordpress editor has a button for it) around your Python code so indentation is preserved

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In reply to @standupmaths

@standupmaths & finally, wp-footnotes is a good plugin. It makes footnotes which link back to the relevant bit of text. elvery.net/drzax/wordpres…

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In reply to @standupmaths

@standupmaths I can email you the code if you'd like. It literally takes two minutes to paste it into your header file from the admin page.

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In reply to @standupmaths

@standupmaths also, @danaernst and others are planning a mailing list for mathematicians with WP blogs. I'll tweet it when it exists.

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In reply to @Gelada

@Gelada @standupmaths @danaernst well that sounds like we have a quorum. @pkrautz is keen as well.

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In reply to @mattypsmith

@mattybeardsmith how many people work there? Not sure you've spotted a trend there

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In reply to @acmescience

@acmescience top stuff!

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Milton Jones is a Brilliant Mathematician: bbc.co.uk/iplayer/episod…

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I got a present for ya! apps.nahklick.de/cnc/

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In reply to @mathsinthecity

@mathsinthecity we should publish a picture book of the times we manage to look stylish while carrying unstylish things.

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Getting familiar with Lominoes. I will be trying to build a ziggurat at tonight's @MathsJam

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is it just that twitter search is bad or are old tweets actually forgotten after a while?

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In reply to @outofthenorm2

@outofthenorm2 is that problem related to Golomb rulers? en.wikipedia.org/wiki/Golomb_ru…

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In reply to @aperfect

@aperfect so I should be saving my tweets somewhere in case I want to refer back to them?

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In reply to @lizmallard

@lizmallard the creator will sell you some if you email him: schoengeometry.com

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This dude's talk would be a lot easier to understand if I could see laser pointers

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In reply to @pkrautz

@pkrautz failed hard. But it would've been easier, if not objectively easy

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new game in the office: get to my blog with an unlikely google query. Current leader: "the esoteric turtle and the carrots"

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In reply to @pkrautz

@pkrautz yep

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new winner in mathem-o-blog quest: "the irrational rubik's cube at mardi gras"

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or: "the case of sherlock holmes and the esoteric lego egg"

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In reply to @peterrowlett

@peterrowlett you'd better check your registration status!

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Off for a cheeky Micky D's before @MathsJam

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In reply to @pkrautz

@pkrautz they've reverted to the old one, so depending on cookies and caches, it'll either appear or not for a while

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In reply to @stecks

@stecks are you getting much done in Manchester? A write-up of our night would just be, "we played with Lominoes then went home"

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In reply to @peterrowlett

@peterrowlett @MathsJam or it's a double-bluff, and the answer is no for a surprising reason

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too many computer scientists named Philip.

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In reply to @ellenirites

@ellenirites @sadiestrong I will eat something similar! Good idea!

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I took 7 pages of notes at last night's MathsJam. Durham students are too keen.

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Linguistics fact: Jèrriais, the Norman French spoken on Jersey, sounds like normal French spoken by someone you want to punch in the face

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these clouds are gathering, like, Storm-from-the-X-Men-fast.

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In reply to @GhostMutt

@GhostMutt what's going on there?

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women of twitter: do you also get "female" spambots following you, or male ones? Or none? Is sexism rife in the evil spammer fraternity?

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The wind turbine is 120! That's 2pi/3 in radians. On 25/1/1892 James Blyth presented his new invention - the wind turbine (via @nulibsage)

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In reply to @GhostMutt

@GhostMutt PHP's an odd choice. Is there some syntax you're comfortable with only in PHP?

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In reply to @GhostMutt

@GhostMutt javascript, dude. paper.js is a good simple library for doing graphics

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In reply to @brittneybean

@brittneybean their about page reads like what a 9-year-old girl who isn't yet aware of feminism would imagine she'd write when she grows up

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In reply to @aperfect

@aperfect @kenfodder @brittneybean @moomerman I'm having burgers tonight too! Except they're homemade and I'm putting plastic cheese on top

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In reply to @mountain_ghosts

@jcoglan hidden semantics yeaaaaaah! It's like how the RT button doesn't just stick RT in front of a tweet any more

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hello, new Belgian followers! Why are there so many of you?

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Listening to Clare and the Reasons unapologetically. Ain't no apologies forthcoming.

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In reply to @enoFsamohT

@enoFsamohT Cantonaftershave

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@clareandreasons nope!

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Yeah, numbergossip.com is fine, but how about numberslander.com? I know 7's dark secret.

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In reply to @ellenirites

@ellenirites @RANIELDANSON you're both wrong. "Yourself" as a subject pronoun makes me very very angry indeed.

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Mathematicians with Wordpress blogs (in particular @standupmaths): ask questions about blogging maths on wp4sci groups.google.com/forum/#!forum/…

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In reply to @ellenirites

@ellenirites @ranieldanson "Would yourself like anything else?"

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In reply to @ellenirites

@ellenirites @RANIELDANSON on the internet, nobody knows you've got a posh voice, like wot I does.

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In reply to @ellenirites

@ellenirites @RANIELDANSON and I fully accept that that previous sentence was nothing other than hateful

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON @ellenirites time to break out some Greek: Heteroglossia en.wikipedia.org/wiki/Heteroglo…

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In reply to @ben_nuttall

@ben_nuttall sorry snopes.com/politics/milit…

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In reply to @Rosalot

@Rosalot that is a hilarious name for a blog

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In reply to @Htbaa

@Htbaa you might find Champernowne's constant interesting

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seriously good fish from Marshall's tonight

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failing to make a ziggurat of Lominoes: youtu.be/5fUIX1xp1cI

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In reply to @standupmaths

@standupmaths on that subject, I'm going to share a google document with you. You might have some thoughts about it.

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In reply to @Bishnavitch

@Bishnavitch Metal Gear Cosby youtube.com/watch?v=7tTPNi…

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In reply to @brittneybean

@brittneybean oh wow, n+1 doesn't look like J. Wellington Wimpy's Geocities page any more!

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In reply to @mathsinthecity

@mathsinthecity I'm looking at the site for the first time in ages. Is there a way of getting a list of all sites, sorted by date added?

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In reply to @mathsinthecity

@mathsinthecity EXCELLENT!!!

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In reply to @mathsinthecity

@mathsinthecity you might even be able to tempt me down south with such a trendy accessory

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In reply to @daveowhite

@daveowhite I ask my uni's systems the same. It doesn't let me log off until I delete things, so I think the former is empirically true.

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just discovered that / starts search-as-you-type in SumatraPDF, just like in vim.

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there should be an annual Mathematicians' Rounds where we go to other departments and point out what they've reinvented with worse notation

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(reading a computer science paper which spends ages defining "2-to-1 functions", which are just binary relations)

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update on my little survey: seems everyone gets female spambot followers, regardless of their own gender identity.

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Trying to attract undergrads to @MathsJam with @stecks's postcards.

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no, the entire point of LaTeX is that you don't do the spacing manually. (editing someone else's text)

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In reply to @TimandraHarknes

@TimandraHarknes but it costs some unlikely combination of change, or you have to get a token off someone and it's a hassle, so why bother?

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just a little bit tired of Chrome pasting text with formatting included by default.

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how do I get to a position in life where it's my job to watch this video all day? youtube.com/watch?v=3fy4cq…

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In reply to @standupmaths

@standupmaths you say that as if it isn't something you do regularly :S

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How to get beautifully typeset maths on your blog: checkmyworking.com/2012/01/how-to…

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In reply to @peterrowlett

@peterrowlett I would appreciate it if you mentioned my MathJax post on #mathmaths. My mathematical week: declaring LaTeX jihad!

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In reply to @standupmaths

@standupmaths unless Google is just one person - "qoud vos, Google"

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Might be time for a new Dr Robotnik. He's gone blind and most of his wires are wonky.

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In reply to @rockhyrax

@rockhyrax midnight slug espionage!

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In reply to @rockhyrax

@rockhyrax they clean up after themselves in the sink. It's the perfect crime!

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In reply to @JanvierUK

@JSlayerUK I would patronise that establishment for both my tort[e] needs.

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths but the snowflake obstacle in the Wipeout zone has the correct symmetries

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In reply to @OddballDave

@OddballDave twitter seems to have forgotten I'm following you. Well, it's a quiet Saturday night, I'll buy your game now.

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In reply to @JanvierUK

@JSlayerUK or less, if he continues ruining the company the way he is currently

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why is nobody using something TeX-ish, i.e. a macro language with minimal syntax, as a template language for the web?

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man, I'd probably hate heroin. The noises I make when I haven't had any chocolate in a while are bad enough.

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In reply to @EliotBall

@EliotBall no, it doesn't have macros

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In reply to @EliotBall

@EliotBall macros are new commands you can define in the text to abstract out common patterns.

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In reply to @EliotBall

@EliotBall yes, well, I was asking why nobody had done that

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In reply to @EliotBall

@EliotBall the usual reasons people want templating languages

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In reply to @Bishnavitch

@Bishnavitch sad/happy times

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Today, Christian Perfect is: CRINKLY MAN.

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If someone you are meeting for the first time describes themselves as "old and fat", does etiquette demand that you fail to recognise them?

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In reply to @ben_nuttall

@ben_nuttall Greggs pasty. That's a rough approximation to a pie.

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In reply to @peterrowlett

@peterrowlett arg I need to write up Newcastle MathsJam and I have so much other stuff to do!

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In reply to @peterrowlett

@peterrowlett massive pedantry on the solution page: the singular form is 'tetrahedron'.

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In reply to @peterrowlett

@peterrowlett although it is quite fun spending an evening doing the writeup, and it gets a lot of hits and discussion

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In reply to @mountain_ghosts

@jcoglan like having a gun in the home, I'm much more worried that I'll forget my own master password than that hackers will crack it.

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Does there exist a CCD which sees light in the bit of the spectrum used by wifi? Do human bodies reflect it or are they just opaque to it?

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In reply to @Electrokittie

@Electrokittie can and should

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In reply to @mike_geogebra

@mike_geogebra is there a timetable for the html5 implementation?

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In reply to @mike_geogebra

@mike_geogebra is most of the performance lost in the computation, rather than rendering?

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In reply to @mike_geogebra

@mike_geogebra I've been staring at the .js files thinking there's no way that's enough code, then I remembered you used GWT!

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In reply to @daveowhite

@daveowhite twitter seems to be doing an excellent job of forgetting for me

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In reply to @daveowhite

@daveowhite losing old tweets is the biggest problem

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February

In reply to @standupmaths

@standupmaths "kids say the most quantifiable things"

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In reply to @peterrowlett

@peterrowlett I wither under the heat of your mad social media cross-promotion skillz

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Not sure why I misread Leonhard Pfeifer as Leonhard Euler but that's the most excited I've been about a John Lewis window display in a while

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In reply to @stecks

@stecks look at the end of this video youtube.com/watch?feature=… - I'd love to see them do more of those orbits you talked about at mathsjam

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In reply to @daveowhite

@daveowhite well, the argument could be made that Google's IPO changed how they work considerably

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In reply to @ben_nuttall

@ben_nuttall the Euler characteristic is actually a design motif

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I dislike bug reports written in the passive voice.

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somebody called Jon with a rich baritone should open a bookshop in Hay-on-Wye called Jon Tomes

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my blog is in a coma :(

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my blog has arisen from its coma! Thanks, @aperfect!

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new @MathsJam organisers might like this big collection of really interesting puzzles and games gurmeet.net/puzzles/

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I've rejoined the Coincidentally Colour Coordinated Clothing Corps with a brown t-shirt and this rather fetching mustard yellow jumper

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spambots have excellent names. Mignon Bonifont, Melania Griffiths, Telma Fabry: I wish you were real people!

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Note to me: apple juice benefits from being shaken. Apples do not.

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In reply to @PeterMolydeux

@PeterMolydeux you're just repeating plots from Round the Twist now

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Decided I was going to take three steps at once but that thought didn't get down to my legs in time.

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In reply to @peterrowlett

@peterrowlett I'm perfectly fine. Thanks to my height, I had enough thinking time to rectify the mistake

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and my blog is ill again :(

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON one day your loyal #FFing of me every week will be rewarded. Not today, though.

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In reply to @peterrowlett

@peterrowlett so should #gausslies be true? @gaussfacts are mainly false.

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In reply to @standupmaths

@standupmaths have you been in one of those ones that moves continuously and loops round at the top? They scare me.

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I've got a really quite enormous lumpen spot in that little crevice behind my ear. Worried it's like a boll weevil or something.

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In reply to @Electrokittie

@Electrokittie hah, those are totally Auntie Sheila shoes. Aunties of other names need not apply.

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In reply to @Electrokittie

@Electrokittie come on though, you can do better than that. Sheila's Heels.

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In reply to @standupmaths

@standupmaths google has helped my memory! They're called paternosters and Leicester Uni has one youtube.com/watch?v=Pb3Isb…

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In reply to @standupmaths

@standupmaths big in Germany, of course, where people can be expected to behave themselves youtube.com/watch?v=0siUw7…

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In reply to @Our_Frank

@standupmaths @Our_Frank @thought4day2 @jonny_nichols @charlotteyoung wow, loads more than I thought! Someone update nerdydaytrips.com

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In reply to @mathpuzzle

@mathpuzzle it's been a long time since you last updated the site!

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someone called exactly as an album finished playing. I like that.

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett what about Erdos's enormous collection of left shoes stolen from his collaborators?

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@chaosdynamics @jeffemanuel especkley? ekspecially?

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the set of universes in which Cibelle is correctly classified as "country music" has measure zero. Stupid emusic.

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@chaosdynamics that's hilarious. Remind me never to visit Boston or I might get fisticuffsome.

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In reply to @stecks

@stecks you're in Newcastle tomorrow, yes? Coffee and Lominoes?

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In reply to @stecks

@stecks as you're tourists, I suggest the Baltic. Alternatively, heading into town, there's Blakes or Cafe Royal

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How is it possible for a man of 26 to make this much mess eating soup? #dyspraxia!

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nearly at the end of my notes on January's @MathsJam. This recap post is going to happen, people!

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In reply to @miclugo

@madcaptenor I think it does.

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Finally! The Newcastle @MathsJam January 2012 Recap: checkmyworking.com/2012/02/newcas…

1 favourite 1 retweet

stop looking, we've found the free-energy source: finnishdesignshop.us/-kukka-reflect… "in addition it reflects in the dark"

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In reply to @ellenirites

@ellenirites Cheer up! Dog with silly boots! animalsbeingdicks.com/post/169749474…

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In reply to @mariondov

@mariondov pi is defined in terms of the properties it has. Series representations are often derived from trig functions with known values.

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In reply to @mariondov

@mariondov but there now exists a formula for individual digits of pi without working out the previous ones, so calculations can be checked

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Oh man, you really don't want to see a spelling error on a sign in a tattooist's window.

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Got in a good round of blue plaque bagging. Got 9 plaques around the quayside, Byker and Heaton. Now it's snowing so I'm going home.

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Pay homage to the Sun King! Documentary on Louis XIV starting on BBC HD now.

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oh no never mind, it's awful

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to the author of this article: you've saved neither space nor time by rounding the price up the first time it appears bbc.co.uk/news/uk-scotla…

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In reply to @TraineeGeek

@TraineeGeek email Alan Schoen: schoenah@gmail.com

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Frozen sand! Best sand!

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Wahey!! (I may have cheated a little bit) #lominoes

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen superbowl maths puzzle: explain how a 60-minute game takes FOUR HOURS to finish

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In reply to @standupmaths

@standupmaths @qikipedia I worked out how big the bucket would be so no. atoms in bucket = buckets of water on earth takenot.es/?water%20conta…

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The plot thickens in my mathematical investigation, with the inestimable assistance of PI Pi.

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because it's Sunday and I've run out of things to do: a blog post about atoms of water checkmyworking.com/2012/02/puttin…

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In reply to @lizmallard

@lizmallard its just over a teaspoon if you're counting molecules.

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EXCELLENT. Just did a yawn exactly like Peter Ustinov in Disney's Robin Hood. #vibrato

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I love how if you leave a TV on these days the only thing that gets burnt out is the planet.

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In reply to @ellenirites

@ellenirites we were having a discussion in the maths department about the practicality of storing soup in tupperware. I see where you stand

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In reply to @ellenirites

@ellenirites can't really remember, but empirical evidence of expected spillage was sought in the staff kitchen.

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oh wow, the Proceedings of the FUN with Algorithms conference is treasure trove of excellent paper titles informatik.uni-trier.de/~ley/db/conf/f…

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In reply to @ellenirites

@ellenirites ah, but we were discussing it as a means of getting soup into work

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In reply to @ellenirites

@ellenirites PS "soup into work" is a policy to be announced at the next Tory Party conference

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way more pictures of old carrots than you need, but nowhere near as many as you want carrotmuseum.co.uk/manuscripts.ht…

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In reply to @Electrokittie

@Electrokittie for the record: Lana del Rey is not hot. That top lip is an automatic disqualification.

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Arg, Neil Cowley's new album is too beautiful! I am an emotional turtle flipped on its soppy back, feelers all waving in the air helplessly

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I'm so emotional that I'm looking at curta calculators on ebay. This is my equivalent of drunk-dialling.

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In reply to @Electrokittie

@Electrokittie word on the street is that so is her entire face

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In reply to @ellenirites

@ellenirites what is that salad doing there?!

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In reply to @ellenirites

@ellenirites eugh. Reconsidering whether I should follow you.

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Walking down stairs takes a lot longer when you take them one step at a time. I don't know how you short people don't go mad with boredom

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you have permission to rock out while reading these papers: latexsearch.com/latexFacets.do…

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In reply to @TwidgeMC

@AdrenalGBR true recollection of events

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In reply to @ben_nuttall

@ben_nuttall Resources tab. Click on Frames -> (myfile.htm) -> myfile.htm. Tada!

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In reply to @ben_nuttall

@ben_nuttall oh no, that's only got new selectors in it.

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In reply to @ben_nuttall

@ben_nuttall though if you do make changes, the stylesheet in the resource tab is changed to reflect them, and the original is underneath

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I'm editing a WordPress plugin. I hate PHP so much!

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In reply to @ben_nuttall

@ben_nuttall we're (some people you've heard of) collecting our individual blogs on one site. We've got a plugin which imports our posts...

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In reply to @ben_nuttall

@ben_nuttall but it needed changing so imported posts have the same publication date as the version on the original blog.

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In reply to @ben_nuttall

@ben_nuttall not quite

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getting some burgers out of the freezer. If they're thawed by dinner time, bonza. Otherwiser it's carbohydrate bumholes, aka tortellini

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In reply to @mathsinthecity

@mathsinthecity ooerr, tiny fame. @standupmaths has since informed me that London's circle line now has the same topological property :(

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In reply to @mathsinthecity

@mathsinthecity it's OK, this is how Science! is done. I'm going to start petitioning the council for a loop-the-loop in the Metro, though.

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In reply to @mathsinthecity

@mathsinthecity every time I go to IKEA, I forget to take a pic of the store map as an example of fractional dimension for the website

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In reply to @mathsinthecity

@mathsinthecity can you send an undergrad to take one? You have that kind of power, right?

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it isn't even funny how long my body takes to recover from just walking for a couple of hours. Day 4...

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In reply to @mathsinthecity

@mathsinthecity incredible. And I've just discovered that google maps has enormous difficulty searching for ikea

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there are only 18 IKEA shops in the whole UK?! I feel like a Byzantine discovering the Western Roman Empire collapsed 600 years ago.

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In reply to @aperfect

@aperfect really though?

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NVDA read "résumé" as "resume" and "resume" as "résumé". The mind boggles.

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In reply to @enoFsamohT

@enoFsamohT it's funny because now I'm thinking about you handling your own poo

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In reply to @standupmaths

@standupmaths is this a marginal utility of tea thing, or would the consumption of tea always have negative utility for you?

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In reply to @jcsteh

@jcsteh probably microsoft. I've been switching between the two

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In reply to @jcsteh

@jcsteh while I've got you - how well can NVDA read MathML?

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In reply to @stecks

@stecks @peterrowlett *cough* blog post please *cough*

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In reply to @charliesgames

@charliesgames how much fun maths was involved in the pathfinding? Could you do a mobius strip, for example?

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In reply to @charliesgames

@charliesgames so if they're diametrically opposite the player they won't move at all?

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In reply to @charliesgames

@charliesgames mobius strip: take a strip of paper. Put a twist in it. Glue two ends together.

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In reply to @plusmathsorg

@plusmathsorg have they really made a Turing machine? They've made two two-state FSAs, which aren't Turing-complete.

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it is enormously annoying that codetalks.org has disappeared off the face of the internet

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In reply to @plusmathsorg

@plusmathsorg my tut remains. Don't pull a New Scientist.

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@RachaelBailes your badge and your gun. You're not quite there yet

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In reply to @Samuel_Hansen

@Samuel_Hansen I reckon I've got another Internet Maths Aperiodical for you, when I find some time and energy to write it up

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In reply to @Samuel_Hansen

@Samuel_Hansen huh, I suppose. Not sure how long until it's ready

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can anyone explain to me which way is up in this product photo? amazon.co.uk/Eva-Solo-Magne…

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In reply to @ellenirites

@ellenirites is it a sequel to creepy 18th-C abuse-of-trust-fest The Woman in White?

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Dear Diary, Today everyone found my colourblindness hilarious. Sigh. #gotthepurples

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In reply to @laurareeshughes

@laurareeshughes @numberloving but the golden ratio doesn't really have much to do with beauty - see maa.org/devlin/devlin_….

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In reply to @laurareeshughes

@laurareeshughes @numberloving however, @SparksMaths has a very nice Geogebra applet about a real application of phi - sunflower heads

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In reply to @standupmaths

@standupmaths as you're seemingly in the maths jewellery business now: how about Gibonacci bracelets? maa.org/columns/colm/c…

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In reply to @JPickford

@JPickford does the second M in ISMMTTM stand for Monkey or for Mate?

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so far tonight I have found three different, contradicting, definitions of "Gibonacci" sequences. Can anyone think of any more?

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going to see if I can put in a requisition order for a couple of these to go in the school reception: designboom.com/weblog/cat/8/v…

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In reply to @HoeJodgkiss

@HoeJodgkiss you mean this? youtube.com/watch?v=psAgEd…

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In reply to @peterrowlett

@peterrowlett @mathblogging aw man I thought I was in for certain this week. I'll beat you next time, Rowlett!

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oh no, I made toast like 30 minutes ago. Now it's cold and brown! There is no rescuing this toast! #woe

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In reply to @TraineeGeek

@TraineeGeek gosh! That's quite a few of us have bought Lominoes now.

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In reply to @peterrowlett

@peterrowlett mathmo.

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In reply to @peterrowlett

@peterrowlett make it so! It's pretty clear what it means.

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In reply to @peterrowlett

@peterrowlett @xabl if it's good enough for @ColinTheMathmo it's good enough for me

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In reply to @Bishnavitch

@Electrokittie @Bishnavitch I'd love it if you changed "phenomena" to "phenomenon"

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In reply to @xabl

@xabl @peterrowlett @Gelada something something reappropriation of a derogatory term

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In reply to @peterrowlett

@peterrowlett I'm classically trained in the art of rhetoric

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In reply to @pkrautz

@pkrautz Jan's mathsjam recap was the biggest yet checkmyworking.com/2012/02/newcas… and I wrote instructions on MathJax blogging checkmyworking.com/2012/01/how-to…

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Been thinking hard all day. Squash and chocolate time.

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In reply to @standupmaths

@standupmaths I think some of your thief traffic is spilling over into the princess/castle problem and finding me on google for the solution

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Mathmos, in particular analysts: is there any sensible definition of exponentiation on matrices that copes with real-valued exponents?

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In reply to @ColinTheMathmo

@ColinTheMathmo why have you got the band being stretched instantaneously in 1m increments? Ease of exposition, again?

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In reply to @ColinTheMathmo

@ColinTheMathmo Righto. We did the continuous one at NCL mathsjam, and we'd all forgotten how to spot an integrating factor problem.

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In reply to @aperfect

@aperfect in CoffeeScript, whitespace is more significant than a raised eyebrow across a room

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In reply to @pkrautz

@pkrautz yeah, I was mainly teasing @peterrowlett

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In reply to @JanvierUK

@JSlayerUK Il faut cultiver son jardin

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I've written a lot of work emails today that have to be signed "Christian", not "cp". Not happy.

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syntax error on line 1337! y u no like me, c0mpilr?!?!

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In reply to @mountain_ghosts

@jcoglan do you ever use it on windows? It throws up modal IE javascript error dialogs every now and then, caused by crashed adverts.

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In reply to @peterrowlett

@peterrowlett is #prdayoff the hashtag for your day of liberated mayhem?

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In reply to @peterrowlett

@peterrowlett @mathsinthecity break into the Science Museum and steal their Curta calculator for me

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Blog post: MATH PROBLEMS? checkmyworking.com/2012/02/math-p… (following @mathsinthecity's tweet of that flyer earlier)

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In reply to @mathsinthecity

@mathsinthecity well, I wasted my afternoon solving that: checkmyworking.com/2012/02/math-p…

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In reply to @peterrowlett

@peterrowlett my mathematical week: I just solved a flyer checkmyworking.com/2012/02/math-p…

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Eurg. #dyspraxia!

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this might be the hardest Loopy puzzle I've ever seen

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Unexpected massive bonus koala!

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FINALLY. That 3 in the middle right was done! I hadn't noticed!

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Everyone else finds Norman really creepy. Philistines.

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In reply to @Andrew_Taylor

@Andrew_Taylor I'll guess "psychology research grant"

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In reply to @alexbellos

@alexbellos your blog is down

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In reply to @mariondov

@mariondov We know the definition of pi. You can work out the value, or series expansions, from that by pure logic.

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Gnarly thumbwound is coming in handy (ha!)
It expressed my frustration at being panne d'essence for all of 1000 bornes

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In reply to @mariondov

@mariondov this pi book looks good: amazon.co.uk/Pi-Biography-W…

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In reply to @elinoroberts

@elinoroberts it's either that or the Sunday Service, so go for it

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In reply to @standupmaths

@standupmaths that gives me the idea of designing a (finite state? pushdown?) automaton which recognises all coffee orders

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In reply to @Electrokittie

@Electrokittie my studies of Rose Byrne's features have not yet got below her chin, never mind her feet. Maybe others start from the bottom?

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In reply to @Electrokittie

@Electrokittie I will conjecture that every part of her is good-looking, so maybe these people have a point.

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In reply to @mountain_ghosts

@jcoglan ok, now you need to make an audio filter that tries to shift any singing towards an ethereal whispering of the words "WHAT AM I"

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I've blogged again about the additions to my interesting esoterica mendeley group. There's some properly fun stuff! checkmyworking.com/2012/02/intere…

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In reply to @peterrowlett

@peterrowlett ♫ Peter and George, sitting in a tree, doing a double integral on a closed curve ♫

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In reply to @MathsJam

@MathsJam I've just noticed that Feb MathsJam coincides with pancake day? What are we to do? I take pancake day very seriously

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In reply to @HilariousCow

@HilariousCow I have so many issues with the maths on that page. Mainly, the use of the percent sign when percentages are not being used

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In reply to @stecks

@stecks @Andrew_Taylor is this one of those PR things or a real thing?

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In reply to @mathsinthecity

@mathsinthecity @phillyg1990 people who attend the tour might like to join @MathsJam in the evening

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In reply to @mathsinthecity

@mathsinthecity @peterrowlett Peter is as northern as I am Australian

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going to open a cupcake shop called Zorn's. (you'll have trouble picking just one)

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In reply to @peterrowlett

@peterrowlett nice, but no RSS! I was thinking it could get brought in to the new site somehow

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie @ellenirites @mattybeardsmith pancakes, my house, next Monday. Yes?

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In reply to @outofthenorm2

@outofthenorm2 I once had to do those calculations while driving a friend to the pizza place. Very hard to concentrate on the road.

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In reply to @elinoroberts

@elinoroberts the *second* bounce? It has a coefficient of restitution greater than 1?!

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In reply to @brittneybean

@brittneybean anything by Cornelius

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I love saying "that's a weight off my mind!" to my barber. Not sure if he appreciates it.

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In reply to @standupmaths

@standupmaths Get Surrey sounds like a a really boring gangster film. Or maybe the big-screen adaptation of Midsomer Murders.

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In reply to @TraineeGeek

@TraineeGeek shouldn't that be second-last tuesdays? Or are you doing your own thing?

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David's new game: take turns choosing edges. First to pick a cycle loses. What happens when it's played properly?

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reconsidering my ambition to one day be a German youtube.com/watch?v=-MNzna…

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In reply to @GhostMutt

@GhostMutt crumbs! Where have you read that?

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In reply to @GhostMutt

@GhostMutt got a link? I need more context because it's a complicated topic

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In reply to @GhostMutt

@GhostMutt ok, it's a bit of an unusual phrasing. "Limits" usually involve seeing what happens as a parameter tends to infinity.

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In reply to @GhostMutt

@GhostMutt e.g. "the limit of 1/x as x tends to infinity" is 0 because the difference between 1/x and 0 gets smaller as x increases.

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In reply to @GhostMutt

@GhostMutt on searching, "passage to the limit" seems to be popular with Russians. I would use "take the limit".

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In reply to @GhostMutt

@GhostMutt Right. Because it doesn't settle on any one value.

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hah, any paper downloaded from ScienceDirect is called "science.pdf". I want an exclamation mark in there!

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also in re ScienceDirect: those poppy-uppy headers and footers with the 1000ms delay are really quite annoying.

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time and motion planning is great except when it results in all the toilets in the building being cleaned at once

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In reply to @mathsinthecity

@mathsinthecity I don't know how you do things in Oxford but we're a little more civilised up here.

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In reply to @FakeElsevier

@FakeElsevier I can only hope I never meet someone who read that and took it to heart

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In reply to @JanvierUK

@JSlayerUK chiark.greenend.org.uk/~sgtatham/puzz… - Loopy; choose the "Cairo" type

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie animalsthatdopeoplethings.tumblr.com

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at home with a cold today, so I'm listening to The Department and taking a panadol every time @hellobuglers says "testify!"

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My dad brought me this back from London. Have no patience for this kind of thing but Kurt is making a compelling case.

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points against: 1) maths isn't just equations; 2) physics is; 3) most of these are physics equations; 4) mug is wider than it is tall

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In reply to @Bishnavitch

@Bishnavitch I'm ill! Apparently you called me 7 times. I love you too dude but after four you can assume I'm asleep.

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In reply to @Bishnavitch

@Bishnavitch I say no, I'm ill.

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In reply to @KSCMaths

@KSCMaths @standupmaths oh you know it. χ²

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This is the most beautifully unhelpful diagrams I've ever seen in a maths textbook (Papy's "Groups")

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I forgot to celebrate this book's 200th birthday! It is my oldest possession.

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The things you find at the back of a bookshelf...

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My original Creatures disc!

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In reply to @peterrowlett

@peterrowlett I've been going through my bookshelves and found some cracking maths books, including one 201 years old (see tweets passim)

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does it annoy anyone else when undergrads use "we" when they actually mean "I"? eg, "we can't solve this equation by the usual method"

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in fact, I'm against the use of "we" pretty much anywhere outside a group report.

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In reply to @NoelAnn

@NoelAnn yes, that would be better.

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In reply to @peterrowlett

@peterrowlett yeah, but I don't like being implicated in my student's inadequacies

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In reply to @peterrowlett

@peterrowlett @NoelAnn oh I did! I'm thinking of stuff like "we prove that ..."

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In reply to @NoelAnn

@NoelAnn @peterrowlett at NCL we don't encourage anything - apart from occasional comments on homework, we give no training on writing maths

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In reply to @ellenirites

@ellenirites @Electrokittie @Bishnavitch @mattybeardsmith (plus several mathematicians)

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my mouse has decided not to scroll when the cursor is in a narrow band 20% from the left of the screen. Trackpad works fine. WHAT.

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reminder: Feb's @MathsJam is this Tuesday, the 21st. At NCL, I intend to discuss spambots and abelian card games. mathsjam.com

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The milk bounced off my Frosties and on to the kitchen surface. So I'm not dyspraxic, I just live in a slapstick movie.

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aww yisss that was my 4000th tweet and it was a good one!

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In reply to @peterrowlett

@peterrowlett this withering satire considered too short or too inflammatory for second rate minds?

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my mad scrolling problems were being caused by Facebook messenger. I am at a loss.

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In reply to @ellenirites

@ellenirites @Electrokittie nobody has ever been sectioned for hallucinating sausage dogs.

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In reply to @standupmaths

@standupmaths I'll blame the torygraph's copy editors for the fact question 1 asks you to find a pair of numbers which has 6 different sums

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feel sort of bad for making @Electrokittie and @ellenirites flip pancakes against their will but those are the Rules of Pancakes

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In reply to @peterrowlett

@peterrowlett I just checked and I'm coming up for five years on twitter! Has it even been around that long?

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In reply to @madeupstats

@madeupstats the average pancake is successfully flipped 0.8 times

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In reply to @peterrowlett

@peterrowlett I hope you won't be liveblogging the crime I asked you to commit

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In reply to @peterrowlett

@peterrowlett I don't know. Maybe ask those two guys with the camera?

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it's too hot! I'm melting!

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In reply to @standupmaths

@standupmaths I'm meeting my friend for dinner before mathsjam again if you'd like to join us

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In reply to @standupmaths

@standupmaths ah! 7 is when the pub stops serving food and when I need to be in the pub to start MathsJam. A conundrum!

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In reply to @standupmaths

@standupmaths and I was alarmed to notice the Melbourne @MathsJam was already underway when I got up this morning!

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I dreamt I'd been put in charge of a baby orangutan! It was beautiful!

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for those who don't have access to a pack of cards or some friends: I've made the game Mad Abel in python - gist.github.com/1883965

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In reply to @standupmaths

@standupmaths is it OK if I use your photos from last night in my recap post?

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In reply to @standupmaths

@standupmaths couldn't hurt!

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The letter H is the eighth letter and sounds a bit like "eight" when you say it. That's a little bit interesting.

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argrgrw why is flickr upload on android+htc so rubbish?

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I had so much fun at last night's @MathsJam that I've written it up straight away: checkmyworking.com/2012/02/newcas…

1 favourite 3 retweets

In reply to @ilythruthephone

@ScienceFest could you slow down that slideshow on the front page a bit? I'm a fast reader and I struggled to keep up

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In reply to @ellenirites

@ellenirites I read that as #wetgirlproblems. Wasn't wrong.

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Mad Abel is also a good solitaire game. I just finished a round with an enormous 9-card smash

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In reply to @ellenirites

@ellenirites it's surprisingly tame

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In reply to @kirkpatricke

@kirkpatricke homeless! When they're back on their feet they can help look after the sick kids and the brain injured

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just realised that in vim you can name the buffer you want to change to, instead of remembering numbers!

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look, @Samuel_Hansen has posted a really properly interesting video on his blog blog.samuelhansen.com/post/180848606…

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In reply to @Samuel_Hansen

@Samuel_Hansen yeah, I dunno...

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And now a nosebleed. My body is not performing well at the moment.

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This seagull is laughing like Jimmy Carr. Or, Jimmy Carr has climbed onto my neighbour's roof.

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett you could pass the time by playing Desert Bus

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In reply to @ellenirites

@ellenirites proof that the adjective "inviting" doesn't always apply to invitations

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In reply to @Samuel_Hansen

@Samuel_Hansen we like all the same things, why must we be so far apart?

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen series 2 finished on Five here just before series 3 finished in the US. Series 1 on dvd is highly recommended!

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In reply to @peterrowlett

@peterrowlett don't confuse Sam further with the class system. Though I enjoy both the Archers and Archer, so where does that put me?

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interesting - somebody's using pandoc to generate both scriptogr.am posts and LaTeX PDFs at the same time (with maths!) scriptogr.am/michaelt/post/…

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I think my boss just made a satirical commit message. Trying to work out if I'm its target.

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In reply to @stecks

@stecks @Samuel_Hansen @peterrowlett and they often read verbatim from government pamphlets about soil management during conversations

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In reply to @MathsJam

@MathsJam why doesn''t n=7, s=2 work?

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In reply to @MathsJam

@MathsJam then I don't understand what you're doing

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In reply to @MathsJam

@MathsJam Ahh, yes I do!

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please help me twitter: is it possible to improvise bubblebath? I have a bar of soap and a bottle of vosene shampoo

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In reply to @charliesgames

@charliesgames I have some from-scratch quaternion code I can answer questions about, if you'd like

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In reply to @mathsinthecity

@mathsinthecity just remembered that I took a picture of an IKEA floor plan a year ago! I've added a site to the site: mathsinthecity.com/sites/fractal-…

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my ear popped in the shower and filled up with water and now all I can hear is glub glub glub glub

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This dude has the kind of idiot laugh that's surely so cliché that idiots would self-consciously avoid using it, lest they appear idiotic.

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not to hot, not too bright, not too noisy: we can have any two in my office, but never all three at once.

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In reply to @aperfect

@aperfect is there a service which will air-courier food from posh London restaurants up to me for my lunch?

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In reply to @peterrowlett

@peterrowlett how kind, thank you

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BBC Sport headline generator: <driver for mid-field F1 team> sets pace in <Spanish city>

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now playing Mad Abel on $D_6 \times \mathbb{Z}_4$. It's surprisingly not-impossible!

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In reply to @Gelada

@Gelada you got the spelling of 'noble' wrong in your post about being wrong.

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In reply to @peterrowlett

@peterrowlett I'm torn. It's an admirable idea, but the execution is off. My thoughts don't fit in any of the things the survey asks.

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In reply to @mathsinthecity

@mathsinthecity I wouldn't know about that. Are they saving space on corridors so they can have more rooms? Does that make sense? Not sure.

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In reply to @Andrew_Taylor

@Andrew_Taylor is that snowman warm-blooded?

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In reply to @peterrowlett

@peterrowlett what do you think are the chances of the new site having over 100 posts before it even starts?

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Warhammer 40K is 25 years old today! Let's take some time to think about all the nice things we could've bought instead of miniatures.

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I have the coolest friends: we're doing exercises from the 1811 arithmetic textbook on my coffee table blackboard.

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In reply to @pkrautz

@pkrautz thanks!

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In reply to @Samuel_Hansen

@Samuel_Hansen is complimentary therapy the kind of thing where you go into a little room and everyone tells you how great you are?

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This is a bit odd matematikkoyu.org/en/village

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it looks like @Samuel_Hansen is riding the crest of a wave bbc.co.uk/news/magazine-…

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In reply to @alexbellos

@alexbellos please use your mastery of the English language to coin a name for puzzles I've seen before but have forgotten the solution to

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In reply to @alexbellos

@alexbellos because I've seen that one before and I want to use a word with lots of plosives in it to describe my frustration

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could this be easier? "All proposals must be completed using the MS Word template from the site, converted to PDF and uploaded to EasyChair"

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In reply to @Bishnavitch

@Bishnavitch that is an amazing advance in the field of Internet cat pictures. Twelve gold stars and three thumbs up

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In reply to @standupmaths

@standupmaths I'd say 8 is an over-generous score for a kettle with no nearby power outlet

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In reply to @standupmaths

@standupmaths wordpress magic: instead of taking screenshots of tweets, write [twitter URL]; get the URL by clicking on "embed this tweet"

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In reply to @standupmaths

@standupmaths actually, that feature is in the next version of wordpress! Never mind.

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In reply to @standupmaths

@standupmaths well then, could you set the image's alt text to the tweet's content so that it's screen-readable?

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ARG I was going to put my dinner on an hour ago so it'd be ready when I was hungry but I didn't and now I'm hungry and ARG

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In reply to @peterrowlett

@peterrowlett a celebration of British culture

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how closely do your shopping lists match brand names? Mine: "washy; bath squish; squash; scrubbers..."

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Unilever: I will use your brand names on my shopping list for a small consideration

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In reply to @JanvierUK

@JSlayerUK never mind the sexism, that burger looks completely rank

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON what happened to the sunshine warming your mood?

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In reply to @pkrautz

@pkrautz mega-gimmicky. They never say why a Penrose tiling is suitable. They certainly don't make use of aperiodicity.

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In reply to @stecks

@stecks @MathsJam does MK have a meeting-place or organiser? I'll update the map when they do

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In reply to @outofthenorm2

@outofthenorm2 according to who?

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In reply to @pkrautz

@pkrautz @Gelada yeah, opposite - think of how many ways you can put squares next to each other. Penrose tiles deliberately have fewer ways

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In reply to @pkrautz

@pkrautz @Gelada they're not using anywhere near enough tiles to get the Penrose effect - might as well use any shape with acute angles.

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My blog recently passed 4000 all-time hits. That isn't very many!

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In reply to @peterrowlett

@peterrowlett October last year. But I got a negligible number of hits before then.

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In reply to @peterrowlett

@peterrowlett yeah, it's alright. My mum told me at the weekend in a worried voice that I am very ambitious.

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data on every character in unicode. @standupmaths might just lose his reason over this: graphemica.com/%E2%88%83

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In reply to @brittneybean

@brittneybean I've been avoiding thatt because I had an issue of Cabinet to read. Finished that on the metro today. Oh dear.

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In reply to @standupmaths

@standupmaths I've made a Python script to do the happification graph up to 1000. gist.github.com/1939254

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In reply to @standupmaths

@standupmaths I'm redoing it so the edges don't overlap, but that apparently takes FOREVER in graphviz. Maybe it'll be done when I get home

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In reply to @walkingrandomly

@walkingrandomly I think our economists use it. They use it because it's what they were taught and they are incurious beings

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In reply to @outofthenorm2

@outofthenorm2 good point

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In reply to @Andrew_Taylor

@Andrew_Taylor has one proposed to you?

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In reply to @peterrowlett

@peterrowlett you're extremely close to your 8888th tweet. I suggest you make it something in Chinese about the virtues of palindromes

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I've been followed by a spambot with a not completely unreasonable picture (though still a pretty girl). Beginning to doubt reality.

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In reply to @Graphviz

@Graphviz @standupmaths here you go: raw.github.com/gist/1939254/8…

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In reply to @peterrowlett

@peterrowlett you total rapscallion

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In reply to @Graphviz

@Graphviz @standupmaths behold! I think this took my laptop just over 50 minutes: somethingorotherwhatever.com/happify.png

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In reply to @stecks

@stecks ow that was hard to parse. I have brain cramp.

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In reply to @Bishnavitch

@Bishnavitch this brings up a good question! Where do your farts go?

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In reply to @peterrowlett

@peterrowlett @SpencerTHughes Spencer Hughes, you've made an enemy.

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this has been me recently: 27.media.tumblr.com/tumblr_lymnjex…

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON anagram: Faster Mech. That would be loads better.

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March

images des mathématiques has posted a very good (and long) summary of recent maths news images.math.cnrs.fr/Revue-de-press… (cc @peterrowlett @stecks)

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In reply to @ColinTheMathmo

@ColinTheMathmo your cafe-based generosity is increasing at an amazing rate. I must make sure to be in the same city as you at some point.

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In reply to @Samuel_Hansen

@Samuel_Hansen that song is part of a trio of creepy girl songs. The other two: "I'll Kill Her" by Soko, "Boyfriend" by Best Coast.

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In reply to @Samuel_Hansen

@Samuel_Hansen she has just released an album which I'm undecided about. "I'll Kill Her" is a modern classic, though.

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just had my first Newcastle undergrad email to ask about MathsJam. There is hope for this institution yet!

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In reply to @alexbellos

@alexbellos write 1 in cell A1. In cell A2, write "=A1+1". Selected cells A2:A1000. Press Ctrl+D

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just read a comment by someone saying IE has excellent developer tools. I agreed so much my computer went out the window.

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In reply to @Electrokittie

@Electrokittie @ellenirites also to stop tweeting about "tactical whiteys". As a teetotaller, I'd rather not even know that exists.

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In reply to @outofthenorm2

@outofthenorm2 my first year number theory lecturer used to do these tricks with stats from the end of Doom levels

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In reply to @Electrokittie

@Electrokittie that is the opposite of what will happen

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In reply to @outofthenorm2

@outofthenorm2 oh! except he used continued fractions to get the answer a lot quicker

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In reply to @jjsanderson

@jjsanderson @standupmaths I was amazed last night that I could still see it as far south as Peterlee

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In reply to @daveowhite

@daveowhite how bad? early 3dfx cards, or even PowerVR?

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aw, this is a lovely idea goodgym.org

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In reply to @daveowhite

@daveowhite ouch. Suggest you use the Rumble Pak.

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In reply to @E_I_W

@E_I_W what time will you be in the pub?

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In reply to @E_I_W

@E_I_W excellent, that's when I finish at maths-aid. Mind if I join you?

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In reply to @E_I_W

@E_I_W well that sounds sinister!

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In reply to @HilariousCow

@HilariousCow hey! That looks just like the original NPRQuake!

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In reply to @E_I_W

@E_I_W I'm on my way. There in five minutes

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In reply to @peterrowlett

@peterrowlett almost exclusively wikipedia. Mathworld when I want a second opinion

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In reply to @Gelada

@Gelada @haggismaths is this inverse kinematics + control theory?

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In reply to @peterrowlett

@peterrowlett @stecks hooray! The site that doesn't exist yet has 100 posts. I'm itching to get started.

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In reply to @Gelada

@Gelada @haggismaths all of them confusing to me. I would be a games programmer now if I'd been able to get my head round it

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WHY DO I ALWAYS FORGET GUACAMOLE NEEDS LIME?!?! Now I have to go to the shops.

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it's not like there's a catchy song with the recipe or anything youtube.com/watch?v=kRlqsv…

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85% homemade hippy-dippy fajitas. Definitely put enough chillies in.

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if I am elected, I pledge an end to the boom-and-bust weather systems of the current Tory government

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SO COLD

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It's March the Turd! The day when people try to do a poo while walking. I love old English traditions.

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In reply to @standupmaths

@standupmaths missing a trick, dude: leave your front door clopen. Burglars will be unable to break in, because there is no "in".

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Be broadband is down! O woe, I will have to go outside and enjoy the beach.

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Caught out in the rain! Where's my @mathsinthecity umbrella?

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In reply to @enoFsamohT

@enoFsamohT like all traditions, it's as real as you make it

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Physicists: this (double!) rainbow is slightly bigger than my camera's field of view. Moving won't help, right?

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In reply to @peterrowlett

@peterrowlett oi, I am expecting an email from you about talk dates

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In reply to @peterrowlett

@peterrowlett hey, it worked, didn't it?

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In reply to @jjsanderson

@jjsanderson I couldn't see it. Is it because I'm colourblind?

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@Talithin gosh, am I famous?

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@Talithin if you download that file again, you'll get the finished thing. It was my 4th year project

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@Talithin oof, you're doing proper maths.

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In reply to @Bishnavitch

@Bishnavitch I can give you a lift after the film I'm seeing tonight

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In reply to @Bishnavitch

@Bishnavitch but you'd have to get the metro back

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I wish this was a real article that had been edited and had references and no unsupported claims open.salon.com/blog/annie_kee…

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In reply to @aperfect

@aperfect alfa rofail. alfail romeo. awful romeo. alfa roamy-no. alfa roh-me-oh-my. half-a romeo.

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In reply to @benkenyon

@benkenyon it's certainly better than the awful French narration / poetry

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this film is excellent. I saw it at the Lumiere museum in Lyon. Each frame was hand-coloured. youtube.com/watch?feature=…

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To some, programming can be addictive, like a drug. That's why I use Haskell.

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In reply to @Htbaa

@Htbaa no side-effects. It is a terrible pun.

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In reply to @stecks

@stecks my speakers were too loud! you are echoey all the way through

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In reply to @HEAcademy

@HEAcademy clicking on the "book on this event" button for my event (heacademy.ac.uk/events/detail/…) gives a big long database error

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In reply to @HEAcademy

@HEAcademy to wit (abbrv): Drivers error '80004005'
SQL Server does not exist or access denied
/LM/W3SVC/1956424472/Root/global.asa, line 27

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sometimes jQuery is too helpful and I worry it will one day demand its pound of flesh

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My cousin answered one of those facebook trick-arithmetic questions wrong. Disinherited.

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What's the most efficient way to cut parallelograms out of a square?

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A maths lecturer's best-of clips: youtube.com/watch?v=l789l6…

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In reply to @WhiteGroupMaths

@WhiteGroupMaths good enough. Have you seen MathJax (mathjax.org) - get typeset maths on your page without using images.

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@somerandomdude what attribution text do you want for the Iconic set? I can't find a set phrase on the site.

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I've spent too long photographing a bookcase. Please at least agree with me about how excellent my taste is flickr.com/photos/christi…

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I've updated my "How to get MathJax on your blog" post with instructions on getting MathJax to work with Disqus: checkmyworking.com/2012/01/how-to…

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has anyone read "Euclid in the Rainforest"? amazon.com/Euclid-Rainfor… @nulibsage has just acquired it, I might take it out

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In reply to @standupmaths

@standupmaths the headline "Back on the sheep's back" is not doing your homeland any favours.

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In reply to @eAssess

@eAssess and me and @NclNumbas !

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Currently rewriting this crime against typists into more friendly language.

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We're gonna need a bigger brace

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In reply to @Bishnavitch

@Bishnavitch my friend @Samuel_Hansen has just interviewed him! blog.samuelhansen.com/post/188718312…

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In reply to @aperfect

@aperfect aw man I just lost the scone game. Now I want one too.

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I miss the old Pukka Pad paper. You can hardly ever get a clean tear from the new kind.

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Just fell over. All this thinking seems to have drained the blood out of my legs. Clearly not match-fit.

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In reply to @peterrowlett

@peterrowlett shockingly, I don't have one in my esoterica collection! Appalled at myself.

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In reply to @Samuel_Hansen

@Samuel_Hansen you're getting faster, not slower like I was expecting. I thought you'd turn up on a canal boat next.

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this video is ENORMOUSLY pleasing. youtube.com/watch?v=FQMO6v…

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Pourquoi devient-on mathématicienne? rts.ch/video/decouver… and she seems to be a geometric group theorist!

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In reply to @JanvierUK

@JSlayerUK the universe wants you to sit and twiddle your thumbs for a bit

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In reply to @elinoroberts

@elinoroberts that's a very Pocahontas attitude

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too clever, google! Search for "zip file mime type". I thought this kind of categorical expert system was abandoned in the 90s?

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In reply to @brittneybean

@brittneybean adverts? Ticketmaster handling fee for the Christmas party?

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In reply to @brittneybean

@brittneybean hey, at least if those catch on they'll be accurate. Look what the mackems are trying to promote: sunderlandsoftwarecity.com/home.html

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In reply to @brittneybean

@brittneybean hahahahaha I've just looked at their twitter and it's full of events happening in Newcastle

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In reply to @ellenirites

@ellenirites a lion tamer. Isn't it obvious?

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett let me try. Is this your interview with Neil deGrasser Tyson? weknowmemes.com/2011/11/watch-…

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In reply to @christianp

@christianp @Samuel_Hansen @peterrowlett who is Neil deGrasser Tyson? Maybe a relative of F Scott Snitchgerald

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Wow, hmv still exists! And there are people inside! And they're not *all* old women buying presents!

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it's taken 26 years, but I think I'm ready to start loving mustard

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You don't have to have a smile on your face to work here, but these piggies can fix that

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In reply to @GhostMutt

@GhostMutt not going near it

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yazoo is basically brown water. What's the point?

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In reply to @stecks

@stecks how did you get on with the video? Should I do it?

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wherein @stecks uses a zero-knowledge protocol to prove she's better at sudoku than I am: youtube.com/watch?v=i0sffX…

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In reply to @stecks

@stecks windows live movie maker is a blunt instrument. At least we know what to do next time

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iphone/wordpress people: is there a way to send a link from the browser or twitter directly to a wordpress blog as a draft post?

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the spambots have outwitted twitter by changing their names to /x(firstname)\d{4}/ instead of /(firstname)X\d{4}/. Modern-day Einsteins!

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON smart trousers too! Is Ranson going up in the world?

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In reply to @JanvierUK

@JSlayerUK did you watch that thing on bbc four, then?

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In reply to @JanvierUK

@JSlayerUK bbc.co.uk/programmes/b01…

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I reject this applause-sound completely. There is no way that many people wanted to attend a recording of Brain of Britain.

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In reply to @pkrautz

@pkrautz @danaernst it's CC, not open-source.

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In reply to @danaernst

@danaernst @pkrautz there are mathematica notebook versions of the chapters on the wiki, so maybe they're the source, but I can't load them

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In reply to @brittneybean

@brittneybean is this something to do with conspicuously throwing out your LPs of next year's hot new pop act?

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In reply to @brittneybean

@brittneybean sorry, I'm trying to write an entertaining maths article. My mind is jammed in "try too hard" mode.

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In reply to @Pat_Hogun

@GPRPichot @pkrautz @stecks @mathblogging sorry, try going straight to youtube: youtube.com/watch?feature=… - my blog has occasional DNS problems

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In reply to @Andrew_Taylor

@Andrew_Taylor yeah, word order: "up to 16 killed by soldier" is less ambiguous

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In reply to @RichardWiseman

@RichardWiseman consider it an affirmation of your respect for your heritage. He'll like that.

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In reply to @Pat_Hogun

@GPRPichot thanks. NP just says a solution can be checked quite quickly - being able to check at all is enough for random guessing to work

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In reply to @monsoon0

@monsoon0 does it work well? We have a similar thing called MAGIC but it's pretty much universally disliked

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In reply to @Pat_Hogun

@GPRPichot twitter doesn't really have enough space to get into the subtleties of it.

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In reply to @EliotBall

@EliotBall I'm skeptical. Is it by design?

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The Aperiodical is back! Brit-aping, useless formulae, arts and crafts, interactive proof and parking constants: aperiodical.com/2012/03/aperio…

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen chalk up another win for ol' cp. #mathmaths

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A trail of sweets on the pavement. I'm tempted to follow it, but I know there'll just be a messy child at the end of it

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In reply to @gingerbeardman

@gingerbeardman implying a spammer somewhere died at their keyboard. What a sad thought!

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In reply to @trackinthebox

@trackinthebox "Happy Soup" isn't upcoming: it already upcame - amazon.co.uk/Happy-Soup-Exp…

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@nulibsage I met one of the photographers in that book while out looking for the aurora at tynemouth! I don't know his name, though.

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"we relabel the $i$th letter $w_k$." Does nobody check PhD theses?

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In reply to @peterrowlett

@peterrowlett what news?

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In reply to @peterrowlett

@peterrowlett ah, Durham's joined. My mind: not blown.

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In reply to @gingerbeardman

@gingerbeardman great, now my google adverts are going to be full of that Ruark radio for the next month. So expensive!

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In reply to @aperiodical

@aperiodical well, that didn't work, whoever posted that

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forget about Pi Day tomorrow, today is March's first Unambiguous Day: While 12/3 could be 12th Mar or 3rd Dec, 13/3 can only be today!

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In reply to @standupmaths

@standupmaths is "avoid all things which increase risk of death" a good strategy? A greedy algorithm, if you will.

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this BLT is way more than the sum of its parts, or even the product of its parts. This BLT is more than the tetration of its parts!

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In reply to @TimandraHarknes

@TimandraHarknes @standupmaths could I outsource the worrying, and blindly accept the advice of a third party?

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it is very cruel of Mai Lan to release this excellent demo and have nothing downloadable! soundcloud.com/mai-lan/easy-d…

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3 in 20 women are on a FTSE 100 board: "The percentage of women on the boards of the UK's 100 largest firms has risen to a record 15.6%"

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In reply to @aperfect

@aperfect yes, it is good

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I had a huge BLT and a litre of fruit (I think that's how big my bowl is) for lunch. How am I still hungry?

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In reply to @brittneybean

@brittneybean what happened to e-s-p-r-e-s-s-o.com? It's serving all sorts of nonsense now

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In reply to @HoeJodgkiss

@HoeJodgkiss you only said that so somebody could call you a PDF-phile, right?

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In reply to @outofthenorm2

@outofthenorm2 I'm going to make a comment, but I also have editorial comments; where would you like those? email?

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In reply to @standupmaths

@standupmaths oh my god, is that a temple of NOD?

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Yes!!! We've reached the future! Let's invade mars! youtube.com/watch?v=6ydeY0…

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In reply to @alexbellos

@alexbellos quite interesting. It reminded me of the way the computer/girl Max spoke in Monday's Dirk Gently.

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tomorrow: Hypatia (she stoned to death by the monks for the thinking-while-being-a-woman) explains astronomy in London: bbc.co.uk/thingstodo/act…

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sorry, most of the last tweet was inaccurate: Hypatia flayed alive by lay Christians; astronomers explain Rachel Weisz as Hypatia in "Agora"

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In reply to @peterrowlett

@peterrowlett @SecondRateMinds oh no! image maths! eesh!

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In reply to @peterrowlett

@peterrowlett @SecondRateMinds and some of the things there were new to me: can you add citations?

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In reply to @plusmathsorg

@plusmathsorg oh, bravo! What a genteel, well-mannered pun.

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In reply to @brittneybean

@brittneybean I believe California has some experience with the concept of the "company town", yes.

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In reply to @peterrowlett

@peterrowlett the desk calculator used by Ferguson

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In reply to @peterrowlett

@peterrowlett nooooo way! Shanks was from where I'm from! houghtonlespring.org.uk/articles/willi…

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Is the world path-connected?

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In reply to @peterrowlett

@peterrowlett maybe, but to follow through logically I should do it on the wrong day

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In reply to @charliesgames

@charliesgames first thought: quaternions are what you want. I have code at github.com/christianp/war…. Busy at the moment.

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In reply to @charliesgames

@charliesgames but this kind of thing is exactly what hardware T&L is meant to do, I think. Ask an OpenGL person.

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In reply to @ilythruthephone

@sciencefest is there a way to link to a single event on the website? Trying to tell my mum about the gaze aversion talk tomorrow

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In reply to @ilythruthephone

@ScienceFest but that doesn't have the description!

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In reply to @charliesgames

@charliesgames can't you use opengl's rotation functions? morrowland.com/apron/tutorial…

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In reply to @charliesgames

@charliesgames then I'm stumped, sorry. I'm no good at optimisations, we don't do those in real maths :)

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In reply to @charliesgames

@charliesgames oh! Is this all happening in 2d?

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In reply to @charliesgames

@charliesgames right. I am very busy at the moment, but remind me this evening if you're still having trouble

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a roguelike on hyperbolic space! roguetemple.com/z/hyper.php (via @haggismaths)

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In reply to @MathsJam

@MathsJam a link to mathsjam.com just came up in the "sponsored links" section of my gmail. How odd! Surely nobody is buying adwords

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In reply to @standupmaths

@standupmaths you should get into sage notebook: sagenb.org I'll see if I can do that plot after talk+cakes afternoon here at NCL

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In reply to @outofthenorm2

@outofthenorm2 @standupmaths that chart, with a log-10 vertical axis, might show no. of digits correct better

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oh! just noticed @peterrowlett linked digits of pi to the first person to calculate them in his post travels.peterrowlett.net/2012/03/happy-…

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@yomcat @peterrowlett @Samuel_Hansen honestly, MathJax is dead dead easy. There's a wordpress plugin. wordpress.org/extend/plugins…

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In reply to @standupmaths

@standupmaths I prefer to write pi in base-26^9 and write the first digit as "christian"

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In reply to @standupmaths

@standupmaths gosh, I had an odd moment of tweet-blindness where I thought you said to look for your name. Same method works, anyway

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I'm so enormously happy with myself for remembering to put the garlic bread in the oven. For once, pasta night is proper!

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@RachaelBailes you should hear the outrageous things my colleague has to say about the humanities

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wahey, 304 followers! See if you can get that up to 314 before pi day is over

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I'm watching videos of animals embarrassing themselves. So far I've watched two dolphins collide mid-air and a hippo with terrible diarrhoea

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In reply to @peterrowlett

@peterrowlett nobody is going to misinterpret 3/14 as referring to the 3rd of Mega-February

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In reply to @PatParslow

@PatParslow @peterrowlett @timtfj that's it, I'm measuring dates using radians from now on. I will celebrate pi day halfway through July 1st

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In reply to @timtfj

@timtfj @PatParslow @peterrowlett um.. why?

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yes!! thank you windows update! my bluetooth chip works again! now the speakers I bought to replace my unusable speakers are usable again!

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how many chocolate traybakes can I prevent myself from cooking before the one I have to make next wednesday? Chocobrain has been activated

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artsters: can any of you explain the current fad for geometric shapes?

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amazon reviewer trying very hard with his first three sentences to come across as the kind of person I don't like: amazon.co.uk/review/R3RJB3L…

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the closest shop selling an avocado after 5 is not in walking distance. I thought Tynemouth was meant to be posh?

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In reply to @brittneybean

@brittneybean at least we're not being referred to as "matériel" yet

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now I know for definite that licking the spoon you measured the cayenne pepper with is a bad idea

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In reply to @outofthenorm2

@outofthenorm2 great stuff!

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In reply to @Bishnavitch

@Bishnavitch archer series 3: Wednesday, 10pm, 5*.

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In reply to @ColinTheMathmo

@ColinTheMathmo yeesh. We're a long way from my campaign for 0 to be a natural number to gain any traction, then.

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$\int_0^e \left( e^{e^{e^{e^{e^x}}}}.e^{e^{e^{e^x}}}.e^{e^{e^x}}.e^{e^x}.e^x \right) dx = ^6e - ^5e$. Why? pic.twitter.com/SbLRIi4D

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(sorry, took me a while to get the TeX right there)

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In reply to @outofthenorm2

@outofthenorm2 fun fact

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how is this "Lost Cities of the Ancients" programme on bbc four? It's barely good enough for channel five.

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In reply to @peterrowlett

@peterrowlett you missed out Katie's Manchester MathsJam recap from the math/maths show notes! aperiodical.com/2012/03/mathsj…

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2^10 comments on my blog! Only 89.8% of which are spam!

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In reply to @elinoroberts

@elinoroberts which printer?

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In reply to @ben_nuttall

@ben_nuttall so their servers can literally be taken down by The Man?

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In reply to @peterrowlett

@peterrowlett that looks like a very good booklet

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Newcastle @MathsJam is tomorrow, 7pm, the Charles Grey. mathsjam.com/index.php?cont… @peterrowlett will be joining us, so look smart!

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In reply to @brittneybean

@brittneybean that is lacking a lot of nuance

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In reply to @brittneybean

@brittneybean argrgrsgr, the more I read about that visualisation, the more angry it makes me

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this visualisation of the wrong data has made me angry: guardian.co.uk/news/datablog/…. Typing with clenched fists is hard so no thanks @brittneybean

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In reply to @aperfect

@aperfect @brittneybean precisely. checkmyworking.com/2012/03/visual…

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In reply to @peterrowlett

@peterrowlett it's practically summer up here. Hope you packed shorts! Dragons currently in Sunderland, so you'll be fine.

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This might not be very healthy

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In reply to @standupmaths

@standupmaths should I be updating the MathsJams map with your van's coordinates?

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In reply to @TuringSunflower

@TuringSunflower can you explain the link between Turing and sunflowers please? Is it to do with reaction-diffusion and that sort of thing?

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In reply to @MathsJam

@MathsJam GLA: we meant you need only one of the first two steps, ie 2332 is a solution

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In reply to @christianp

@christianp @MathsJam or even 3223 would make more sense to you! Forgot which way round you had it

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I like this a big lot: thisiscolossal.com/2012/03/clouds…

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In reply to @HESTEM

@HESTEM thanks! I should've given @peterrowlett some in a doggy bag, there's loads left over (turns out we didn't need TWO kilos of cake)

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plan for tomorrow: sit in pyjamas and write code until all my problems are solved

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In reply to @trackinthebox

@trackinthebox why don't your URLs have the date in them? Isn't that sort of the idiom within which your site operates?

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In reply to @brittneybean

@brittneybean but if it was in the url I'd be able to tell if a link is to today's track or an old one.

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we are running a workshop on creating maths OER on April the 10th, for which places are still available: heacademy.ac.uk/events/detail/…

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In reply to @charliesgames

@charliesgames and that is why I don't play shmups. Did you sort out your rotation thing?

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Oh no! It's the Simpsons episode with the Run Lola Run spoof but I missed that bit. Truly life is not worth living!

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Dinner tonight: a traditional Mexican dish, "throw all one's spices and vegetables at a few bowls"

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ʕ •ᴥ•ʔ

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In reply to @stecks

@stecks oh! I get it now!

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In reply to @stecks

@stecks can we make a script which takes arxiv papers and replaces every proof with "Left as an exercise for the reader"?

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I wanted to live by the sea, not in it!

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In reply to @peterrowlett

@peterrowlett @aperiodical ahh, I thought I fixed that! I wonder where the correct version is

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In reply to @peterrowlett

@peterrowlett @aperiodical should be fixed now

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I wondered this, because my (southern, manchester) flatmates had never heard of it. I thought it was used everywhere

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Bison! In Sedgefield! At Farnless Farm Park.

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more bison pictures at plus.google.com/11130061692066…

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Gosh, @peterrowlett has been doing a very good job writing up news stories for our new site aperiodical.com today.

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In reply to @peterrowlett

@peterrowlett I added a bit of mathematical detail in a comment to the topic-based vector space story.

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haha! 30.media.tumblr.com/tumblr_m1c9yeu…

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a clever way of switching between markup and its display, including with LaTeX: youtube.com/watch?v=hG3ELs…

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A page from an old notebook. When was I good at drawing?!

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yeesh. I've just discovered a library that makes my instant-preview-above-TeX editor a squillion times simpler: somethingorotherwhatever.com/new-writemaths/

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today has started with a good photo gardenofpraise.com/agbell13.htm

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please buy my new range of plates featuring images of the abyss, a navel, the circle of life and the night sky: "ContemPlates"

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other ill-considered crockery: the Grand Bowl Opry, Dish is The End, Camilla Finger-Bowls

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In reply to @peterrowlett

@peterrowlett time to forward you all those funny cat pictures I've been saving

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In reply to @mountain_ghosts

@jcoglan a first attempt: dict['a'] = dict.get('a',0). I feel there's a slightly more obvious way though

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In reply to @christianp

@christianp @jcoglan in fact, two lines lower in the docs: dict.setdefault('foo',0). docs.python.org/library/stdtyp…

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In reply to @mountain_ghosts

@jcoglan that's what setdefault does. get doesn't set it.

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In reply to @mountain_ghosts

@jcoglan oh, I see what you mean. Never mind.

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windows 7 non-powershell command line: is there a way to pipe a wildcard selection of files through to a command?

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In reply to @PencilBloke

@PencilBloke it's the best kind of correct: technically correct

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In reply to @mountain_ghosts

@jcoglan this (neckbeardy) command just occurred to me: ``` python -c "help(dict)" | grep default ```

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In reply to @jjsanderson

@jjsanderson eduroam is an agreement between universities so visitors can use their home institution account info to get wifi anywhere

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In reply to @stecks

@stecks "Blackboard Bold" is an excellent name for a column

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This is just excellent: "The mate-in-n problem of infinite chess is decidable" jdh.hamkins.org/the-mate-in-n-… (via @mathblogging)

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In reply to @mountain_ghosts

@jcoglan I tried to cross "inception!" with "examination" but all I got was "incemination!" and that is another kind of dream entirely

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Using inline SVG in HTML is an enormous faff. Am I missing something?

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Matt's code loves him!

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In reply to @decaf_unicorn

@fumbleweeds wow, you would *not* get on well in the UK

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The new metro trains have a space for wheelchair users which this wheelchair user is not using because her carer can't sit next to her.

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In reply to @monsoon0

@monsoon0 there seems to be a circle going round. I've been added by lots of people recently too. Watching it happen is like epidemiology.

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On hot days like today, the air in Tynemouth is 50% barbecue smoke

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON it could be worse: a new person could appear who is just as annoying as Ben Elton, and Ben Elton would also be still extant

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In reply to @peterrowlett

@peterrowlett kick's 'self

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In reply to @Skweeky

@Skweeky then you'd better render unto Caesar what is Caesar's

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In reply to @stecks

@stecks youtube showed me an advert for Fosters before that Guinness world records video. Wasted effort, I don't booze!

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In reply to @mathshistory

@mathshistory you had an extra character left there. "when" could've been "whence" and then it would've been grammatically perfect

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In reply to @peterrowlett

@peterrowlett yes!

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In reply to @peterrowlett

@peterrowlett what's the name of that Law of the Universe about correcting people?

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idea for the next @MathsJam: do something like Drunk History but with mathematical proofs

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In reply to @pkrautz

@pkrautz @peterrowlett collecting all our blogging efforts together, plus news and pieces by other people who don't have their own blogs

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In reply to @pkrautz

@pkrautz not quite a blog network! Lots of stuff goes straight on the Aperiodical

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April

@KathrynHTaylor buying them with money is preferred

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In reply to @davidhopperact

@DavidHopper88 @Bishnavitch tiny Crying Game fact: it's a spoonerist remake of a 1950s public information film

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In reply to @stecks

@stecks @aPaulTaylor I like the waterfall puzzle a lot. I think that's the first puzzlebomb puzzle I've solved

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In reply to @stecks

@stecks @aPaulTaylor and the space filling crossword makes two!

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In reply to @Electrokittie

@Electrokittie journalism question for a friend: if someone writes to their MP, is it OK to publish the response in full on their blog?

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In reply to @PickfordBros

@PickfordBros did you ever play my Blitz game "poption"? It was a bit like MB but with a broom instead of a cue. It was loads of fun

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In reply to @ben_nuttall

@ben_nuttall @stecks @standupmaths JLS Love Self-reference is my favourite one

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waiting for someone to file an issue on github so I can include its number in the message of the commit that fixes it. #productivity!

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New blog post: slides about the princess in a castle puzzle checkmyworking.com/2012/04/slides…

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In reply to @peterrowlett

@peterrowlett how long will it take me to get from the train station to wherever your workshop is on the 16th?

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In reply to @EliotBall

@EliotBall oh dear! Not sure what could cause that

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THE BEST! RT @aperiodical: Post: Turing-Tape Games: A Challenge in Algorithmic Problem Solving aperiodical.com/2012/04/turing…

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@sgravn let me know when you have your first one and I'll add you to the map

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today's weather is a sensible continuation of yesterday's, yes.

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In reply to @peterrowlett

@peterrowlett am I correct in assuming you avoid google talk for work-overload reasons? I want to ask when I should arrive in Birmingham

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In reply to @mountain_ghosts

@jcoglan put me down for five quid on "cease and desist"

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The author of this proof seems to hate whitespace so much he's even reduced the line-height. Man that's dense maths!

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yet again I have managed to drown all the notes in my bag. This time it was with Pepsi, so I will have to wash the bag.

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In reply to @standupmaths

@standupmaths but but but… Unicode SMS can only have 70 characters! What are twitter doing? Someone might not get all of your tweet!

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problem: food must be bought up to a week in advance because the shops are a long way away. Solution: pneumatic grocery delivery tubes

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I honestly think that if the edwardians had invented pneumatic food delivery to the home, we'd consider it a human right today.

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In reply to @pkrautz

@pkrautz did you link to my princess-castle slides from the "mathjax in use" page? Could you also link to my maths-on-your-blog post please?

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In reply to @jjsanderson

@jjsanderson ah! thanks for reminding me I also need to book train tickets

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It seems my little brother is not content to kill himself just with cigarettes

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In reply to @ben_nuttall

@ben_nuttall I think it was coffee once

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In reply to @JanvierUK

@JanvierUK *he* is!

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#ff @CarnivalOfMath because I suppose I have obligations as a host now. No. 85, out this week at travels.aperiodical.com/2012/04/carniv… is very good though

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nice! Poincare disc tiling coasters: instructables.com/id/Poincare-di…

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@Talithin maybe later. I'm trying to work out how to write a hyperbolic orienteering game that was suggested at Newcastle @MathsJam

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@Talithin maybe. Just trying to find stuff in hyperbolic space, to see how people navigate. For example, are landmarks useful?

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SPRINGERLINK I HATE YOU!

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how is "problem X is undecidable" a positive result? I'd ask if something *is* decidable. arxiv.org/abs/0806.1602

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Writing haskell again. This is my brain's happy place. Everything is soft and bounces back only so very slightly when you push it.

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my hotmail was hacked again! Sorry to anyone who received very enthusiastic emails from me about enlargement

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canonic n = tail . map snd $ scanl (\(x,d) y -> if x>=y then (x-y,1) else (x,0)) (n,0) (reverse $ takeWhile (<= n) (tail fibs))

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that tweet brought to you by Haskell, God's Own Programming Language

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In reply to @Electrokittie

@Electrokittie I would say a "girl next door" typically has a bit more meat on her

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does BT throttle downloads of PDFs? I'm at my mum's house and they're taking ages, while everything else, even on the same sites, is fast

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In reply to @for_the_winn

@for_the_winn use gist

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depressed I have no local maths hero. @peterrowlett has George Green, of "Green's Theorem" fame. I have William Shanks, who got π wrong.

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I've summed up some more Interesting Esoterica. There are some corkers! checkmyworking.com/2012/04/intere…

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In reply to @natachitas

@natachitas EXCELLENT profile picture! Where is it from?

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In reply to @ellenirites

@ellenirites I wish I was! My mum's roast is still at least half an hour away

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In reply to @outofthenorm2

@outofthenorm2 have the courage of your convictions! Either you believe it's worthwhile or you don't

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this is fun orteil.dashnet.org/nested.php

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dear windows team: why does it take fully 30 seconds to open the control panel for a bluetooth headset?

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In reply to @CloudoidLtd

@CloudoidLtd beautiful

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This was underappreciated: interesting esoterica 3 - orange peels, homophonic quotient groups, nomograms and word death checkmyworking.com/2012/04/intere…

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In reply to @Electrokittie

@Electrokittie I have a friend who is very good and a nice chap. Could ask him which class he runs

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hah, people are already getting to my site by searching for the solutions to the puzzles in the Dara O'Briain adverts. Sorry to disappoint!

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Flawless dismount by my beard. 6.0s all round, even from the Russian judge. A great prospect for #london2012

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In reply to @brittneybean

@brittneybean languages can be objectively bad: en.wikipedia.org/wiki/Malbolge

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In reply to @brittneybean

@brittneybean the fact people use PHP doesn't make it not a bad language. But I shouldn't engage with Jeff Atwood, it only encourages him

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In reply to @brittneybean

@brittneybean which I disagree with, but I want twitter to be a happy place so I'll stop there

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Is there something like google (search for haskell functions by type signature) for units of measurement?

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hooray! my quiet suggestion to the postgrad events organiser to use the bcc field has worked: no more 3mb headers in emails!

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In reply to @Htbaa

@Htbaa sorry, I meant hoogle not google. That does the haskell search thing.

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In reply to @badmachinery

@badmachinery hydraulic, not pneumatic? I don't want your pipe leaking fluids in my house

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I picked exactly the wrong moment to leave the office.

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In reply to @peterrowlett

@peterrowlett April @MathsJam is next week?! Crikey. Going to have to give up on writing up March then. Good idea to include the photos link

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In reply to @standupmaths

@standupmaths it's excellent that we live so far in the future that a retro games shop exists

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In reply to @walkingrandomly

@walkingrandomly could you add that as a snapshot on @mathsinthecity.com please?

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Kickstarter idea: fund a documentary crew to follow me in my search for someone who doesn't like The Big Lebowski. Target: $2 million

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In reply to @mathsinthecity

@mathsinthecity I could really do with one at the moment! It's tipping it down up here

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In reply to @Electrokittie

@Electrokittie @ellenirites I've just googled her. You are quite mistaken about her face

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A nice Penrose tiling generator ifany.org/penrose/ (via plus.google.com/10508009917840…)

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In reply to @DanielColquitt

@DanielColquitt I find Bill Evans "Peace Piece" soothes me when code doesn't work

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Tom Lehrer is still alive. This is a good world, the one we live in.

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett how much of an effect do they have though? I've never used tags on my blog and I have very good google rankings

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a cool dude to follow on google+: olivier gerard - plus.google.com/10226219979927…

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In reply to @TwidgeMC

@AdrenalGBR congratulations! I will buy you a drink at MathsJam

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In reply to @eassessscotland

@eassessscotland the link to join the e-assessment association (tinyurl.com/bz6xqv) is broken

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In reply to @eassessscotland

@eassessscotland and is there a reason you have your own copyright notice instead of CC BY-NC, which is effectively the same licence?

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In reply to @brittneybean

@brittneybean @songdropapp curses, now what twitter name will I use for my fansite for the avant-garde Transdniestrian artist, Songdro Papp?

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In reply to @pelagikat

@hornmaths ask @stecks, she's in charge of the email and website

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Erdos: a web interface to the google GraphViz API - sandbox.kidstrythisathome.com/erdos/index.ht…

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In reply to @pkrautz

@pkrautz but isn't google how people search for things these days? I can't remember the last time I searched for anything using tags

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In reply to @ColinTheMathmo

@ColinTheMathmo @walkingrandomly @ben_nuttall is there a well-known place to download infinite sequences such as primes, digits of p, etc?

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In reply to @ColinTheMathmo

@ColinTheMathmo @walkingrandomly @ben_nuttall if not, would it be worth setting one up? eg keep sending sequence elements until you stop it

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In reply to @ben_nuttall

@ben_nuttall @ColinTheMathmo @walkingrandomly maybe something like calculatefor.me/1000/digits-of… would give you 1000 digits of pi in a plain file

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40 posts in, I'm beginning to regret deciding to retag all of the posts on the @aperiodical

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In reply to @outofthenorm2

@outofthenorm2 @aperiodical works for me. What do you get? The links on names are just to their google+ profiles, thought it was polite.

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In reply to @outofthenorm2

@outofthenorm2 @aperiodical ahh, it's set to limited visibility. Seems the original post is also hidden. Not sure if I should just quote it

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In reply to @walkingrandomly

@walkingrandomly @ColinTheMathmo @ben_nuttall not necessarily. It's definitely quick to just download a list, if that's all you need

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In reply to @walkingrandomly

@walkingrandomly @ColinTheMathmo @ben_nuttall and especially if you don't have Mathematica (or Maple or whatever)

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In reply to @walkingrandomly

@walkingrandomly I can install that on my home PC... but if I'm just writing a quicky python script, feeding a file in is more convenient

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In reply to @Electrokittie

@Electrokittie only three spokes, so the only potential outraged party is the residents of the Isle of Man

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In reply to @christianp

@christianp @Electrokittie why did I only see three spokes there? I might be having neurological problems. Eesh.

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I don't think @stecks promoted this when she posted it, so I will: her experience of presenting at Science Showoff aperiodical.com/2012/02/scienc…

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I've been thinking about hyperbolic space lately, so this grabbed my attention: Hyperbolic Buckyballs: youtu.be/vyi1W717Bgg

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In reply to @outofthenorm2

@outofthenorm2 I've edited the post, quoting Rongmin. This journalism thing's hard.

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Does anyone know a good, non-chain, pizza place that delivers to Tynemouth?

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I agree that switching off escalators saves energy, @My_Metro, but please make sure the train uses the platform where they're still running

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The yachts on the Tyne are all mine all mine, the yachts on the Tyne are all mine. #geordieoligarch

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Any player linked to NUFC by the Chronicle, I will buy. #geordieoligarch

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Greggs is now free at the point of service, just like the NHS. #geordieoligarch

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Behold the 100-foot sculpture of a raised middle finger I have erected off the coast at Sunderland. #geordieoligarch

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In reply to @standupmaths

@standupmaths can you tile a sphere in H3 with hexagons? Zero curvature - negative curvature = positive curvature, right? #badatgeometry

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No better than the soviets: @Electrokittie has divided Catan in half

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In reply to @mathpunk

@mathpunk according to etymonline, no etymonline.com/index.php?allo…

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excellent! every ipad owner should have one: scott-eaton.com/2011/ipad-dock…

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In reply to @elinoroberts

@elinoroberts I've been considering getting a bike. Days like this are the reason I defer my decision

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In reply to @elinoroberts

@elinoroberts so, in summary, the wuss vote says "stay indoors"

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phew! Every post on the @aperiodical is now retagged sensibly.

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I left an entire hour to get the metro in to central station. Looks like I will be using all of that plus or minus 2 minutes

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Reader, I arrived with 15 minutes to spare. And just behind the mechanics, who are here to fix my train, which has apparently broken down.

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arrived in Birmingham. This room is so hot even my tweets are m͇͔͉͖̪e̙͔̟̜͇̮l͖̤͖̪̲̫̗͓t̫̞͔i̭̭̖̠̻͉̯n͉̞̝g̭

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I like the way Ian Agol writes his slides. homepages.math.uic.edu/~agol/coNP/coN… Talking of which, I need to write mine for tomorrow morning's #hestemsoc

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Two years ago, I started collecting interesting maths esoterica. Today, I have found its platonic ideal: complex-systems.com/pdf/20-2-2.pdf

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My view of the sink. But wait, what's that reflected in the tap?

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Why, it's a warning sign, for midgets' eyes only!

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Similarly: where is the keyhole? Was this place designed for children?

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In reply to @standupmaths

.@standupmaths oh, Weng Weng! I know him! youtube.com/watch?v=eqh5O9…

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In reply to @peterrowlett

@peterrowlett I'm going to wander around campus for an hour. Anything I should see, or are you around?

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In reply to @peterrowlett

@peterrowlett going to the Lapworth museum because it's the only one open. It might ROCK my world?

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Basking like an iguana in the warm midlands sun.

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Brummies: I'm currently in the bullring with an hour to spare. Does your city contain anything interesting?

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In reply to @peterrowlett

@peterrowlett managed to write some code to do the thing you want while sitting in the train waiting room, but forgot one thing! Arg!

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lawks a mercy! @Andrew_Taylor's Grime Dice and voting essay on the @aperiodical has really seized the popular imagination.

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In reply to @eddequincey

@eddequincey thanks!

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Newcastle @MathsJam is tonight! 7pm at the Charles Grey pub. Bring a friend, bring some maths.

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Oh man, I just forgot to add the outstandingly witty postscript I was planning for this commit message. I make a sad face now :(

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oh my god, there is an anti-dog-racing group called Greyt Exploitations. Inappropriate pun time!

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In reply to @jamesgrime

@jamesgrime I've only ever found it irritating but plenty of people love it, so it must be a personality type thing.

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In reply to @Simon_Woodhead

@Simon_Woodhead the card game Mad Abel is good. Princess in a Castle puzzle also very good. All on my blog checkmyworking.com

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In reply to @jamesgrime

@jamesgrime you're only 6 years older than me! That doesn't seem like an insurmountable deficit. And: is there a Little Professor fan club?

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In reply to @peterrowlett

@peterrowlett @stecks I've stopped tumblring because they don't get tweeted. I'll tumblr afterwards.

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In reply to @peterrowlett

@peterrowlett @stecks phone, tweeting does seem to just work now. I apologise for the forthcoming torrent of duplicate tweets

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Getting my new staff email and smartcard and everything has been suspiciously easy

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In reply to @aperfect

@aperfect UP????

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In reply to @rockhyrax

@rockhyrax seen this? BBC News - The rock hyrax surprises with syntax skills bbc.in/HPGZFh"

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it doesn't always pay to kill your siblings: …-scorpion-and-the-frog.blogspot.co.uk/2012/04/it-doe…) (found via researchblogging.org)

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Who loves butter chicken? CP loves butter chicken! Is it true? Yes I do I do I do I do-ooo!

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Ah! So that headache was a symptom of curry withdrawal.

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two kinds of people go to bed before 9: children and WINNERS. #yawn

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@nulibsage that's the most transparently rewritten-press-release story I've ever seen on BBC tech news. Shameful!

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google chrome's auto translate should also do "this recipe is in stupid American units. Would you like to see it in metric?"

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cropped this scan of Durer's melancholia to 666x666. SECRET CODES‽‽ #danbrown

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I now have a favourite comic book, in case comic books fans ever corner me and ask for an opinion about spider/bat/super/whateverman

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and that comic book is: COW PUNCHER digitalcomicmuseum.com/preview/index.…

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Once again, the metro has pulled in to St James at the platform where the escalators are turned off.

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This mad old women has taken the opportunity to walk down what is normally the up escalator.

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Tiny fact: Alan Turing's Erdős number is 5 -- ams.org//mathscinet/co…

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In reply to @aPaulTaylor

@aPaulTaylor make a javascript version! javascript is so much nicer for writing little maths things in than java

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In reply to @stecks

@stecks due to a lack of foresight tonight's chicken empanadas are now tomorrow's chicken empanadas and I'm eating ready-meal crispy duck :(

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made for @aPaulTaylor, who wanted an easy way to screengrab just some maths: a MathJax applet called "make big maths": checkmyworking.com/misc/makebigma…

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have fallen instantly in love with the continuity announcer on film4.

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON is it my mum? Can't watch, too busy eating fast food

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!!! pinterest.com/staceynightmar… (warning: bare naked manchests and future-giggles)

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In reply to @standupmaths

@standupmaths @theredroaster very nice, but what's hyperbolic about it?

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In reply to @Andrew_Taylor

@Andrew_Taylor @stecks @markstaylor a robust is what fembots have. #OED2332AD

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Finally, here's what happened at March's @MathsJam, reconstructed out of a haze of tiredness. checkmyworking.com/2012/04/newcas… April's recap is imminent

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every time I read this, panel 6 is as if I've never read it before achewood.com/index.php?date…

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Shakingly tired. Empanada failure doubtless a factor.

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the onion's autistic news reporter is brilliant yet again theonion.com/video/four-ame…

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thanks @ajk_44, @SparksMaths and whoever runs Cardiff Maths Jam for your photos

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In reply to @TwidgeMC

@AdrenalGBR I've forgotten how that integer partitions grid you showed at MathsJam works. Do you think you could write something about it?

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I'm not comfortable with Newcastle doing so well.

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In English, "first" and "second" have nothing lexically to do with "one" and "two"...

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...We just need one more word to go between "second" and "third" and we can finally start counting from 0 like civilised human beings.

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I suggest "first, second, twird, third, ..."

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"twird" a homophone of "turd", of course.

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In reply to @pkrautz

@pkrautz isn't that how "third" is pronounced by ze Chermans?

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considering writing my new, correct, ordinals into the @aperiodical's style book.

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In reply to @pkrautz

@pkrautz ah, jetzt verstehe ich! As is traditional, English mathematics is a step behind the Germans.

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In reply to @pkrautz

@pkrautz aw, now you've got me looking in the book of numbers to see if anyone does do it my way

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Wait a minute. What?

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In reply to @pkrautz

@pkrautz difficult. We have separate author/category feeds, which might be best. Certainly don't aggregate the news.

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In reply to @pkrautz

@pkrautz maybe just aggregate the "features" feed? aperiodical.com/category/main/…

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In reply to @pkrautz

@pkrautz gosh, well, it'd certainly bulk out that news section, wouldn't it? Time to cc @peterrowlett and @stecks and see what they think

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Here's April's Newcastle @MathsJam recap: checkmyworking.com/2012/04/newcas… Subtitle: Wine tasters on a (hyperbolic) plane!

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have developed a very expensive cloudy apple juice habit

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In reply to @Samuel_Hansen

@Samuel_Hansen you've been quiet lately. Are you hard at work making my relatively prime investment worthwhile?

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In reply to @Samuel_Hansen

@Samuel_Hansen for a less gregarious personage than yourself, that would be. Never mind, I'll get by with however much Hansen is going.

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In reply to @christianp

@christianp @Samuel_Hansen I think I meant, "that would *not be quiet*". I've confused myself. Eugh.

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In reply to @ben_nuttall

@ben_nuttall I bet it's something stupid like the calculation only being fired on the keydown event

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gonna have a glass of milk! Ain't none of you can stop me! You're all miles away and the milk is very very close

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"You can now enjoy free John Lewis wifi here." - If google doesn't have what I want, will they order it in for me?

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two unit tests into my expected suite of hundreds, I have found a bug. Super.

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In reply to @stecks

@stecks @aPaulTaylor Newcastle are doing appallingly at the melbourne puzzle hunt. We just looked at your stats and did a sad face

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In reply to @mountain_ghosts

@jcoglan I am, and I want to know if using QUnit is a bad idea. Writing my first unit tests today.

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In reply to @mountain_ghosts

@jcoglan super! Thanks. I'll give that article a good read before carrying on

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In reply to @stecks

@stecks they've called themselves "team badger". I'm avoiding involvement

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In reply to @PinkLaneCoffee

@PinkLaneCoffee my colourblind eyes can't see the word "Pink" in that logo

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WOW changing options in Pagelines is hard if you don't have the paid-for version. What a business model!

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In reply to @HoeJodgkiss

@HoeJodgkiss DOES NOT COMPUTE

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In reply to @aPaulTaylor

@aPaulTaylor @stecks I need to find more people who will play german games with me. I have catan, need to play agricola and carcassonne

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In reply to @stecks

@stecks I'm not a great conference-goer. I'm sure I'll have a reason to visit Manchester eventually though

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In reply to @HilariousCow

@HilariousCow you've seen how many people appear on the forums for those tools asking for help making an MMORPG, right?

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In reply to @stecks

@stecks or: you could visit Newcastle, and it would be Catandemonium

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can anyone think of a boolean expression that would confirm that != and = have equal precedence and left-associate?

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this looks like a fun thing for @MathsJam: flickr.com/photos/4433583… (from @maanow)

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In reply to @monsoon0

@monsoon0 pertinently, we're launching a new maths magazine/blog today, The Aperiodical. Please have a look and RT aperiodical.com

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In reply to @monsoon0

@monsoon0 thanks. What prompted your question about maths sites? Were you thinking of something similar to us?

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In reply to @divbyzero

@divbyzero a few of us are launching a new maths blog, The @aperiodical,
with Klein's birthday goodies. Please RT?
aperiodical.com/tag/launch/

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In reply to @d_spiegel

@undunc a few of us are launching a new maths blog, The @aperiodical,
with Klein's birthday goodies. Please RT?
aperiodical.com/tag/launch/

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In reply to @alexbellos

@alexbellos a few of us are launching a new maths blog, The @aperiodical,
with Klein's birthday goodies. Please RT?
aperiodical.com/tag/launch/

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In reply to @nrichmaths

@nrichmaths a few of us are launching a new maths blog, The @aperiodical,
with Klein's birthday goodies. Please RT?
aperiodical.com/tag/launch/

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In reply to @danaernst

@danaernst a few of us are launching a new maths blog, The @aperiodical,
with Klein's birthday goodies. Please RT?
aperiodical.com/tag/launch/

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(anyone also following the people I just mass-tweeted, I can only apologise. I'll never do it again)

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In reply to @monsoon0

@monsoon0 like, Serious Maths? Or maths in general, as part of the culture?

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In reply to @JanvierUK

@JanvierUK or open a guillotine factory

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@nulibsage don't suppose you could help a NCL student out and RT a link to my new maths magazine/blog, @aperiodical: aperiodical.com

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@nulibsage thanks!

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In reply to @Bishnavitch

@Bishnavitch well now I know where you're going on holiday this summer

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Well, today is going about as well as it possibly can.

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In reply to @outofthenorm2

@outofthenorm2 those notes are lovely! They make me miss my Tablet PC

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In reply to @walkingrandomly

@walkingrandomly trying to update my JScript exponential function to be accurate on complex^(int) and fast on (complex)^(complex). Ideas?

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In reply to @walkingrandomly

@walkingrandomly the current code: github.com/numbas/Numbas/… (floating-point errors abound!)

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In reply to @walkingrandomly

@walkingrandomly ah, good idea. Thanks!

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In reply to @Gelada

@Gelada @peterrowlett I said, "I would suggest not tweeting that kind of thing"

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wow! Thanks for the hugely positive response to the @aperiodical. Today has been amazing.

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In reply to @peterrowlett

@peterrowlett @ben_nuttall you're welcome to rewrite it, but I reckon "has a beard" is definitely in the top 3 Peter facts

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In reply to @peterrowlett

@peterrowlett I don't know how you had the energy to write up all those news stories last night. Bravo.

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In reply to @standupmaths

@standupmaths umbrella husbandry should be part of every school's citizenship lessons

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least awful desktop/chrome twitter client which supports multiple accounts? I don't like TweetDeck

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In reply to @DanielColquitt

@DanielColquitt preliminary findings: twimbow only allows max 3 accounts, hootsuite abhorrent in every way

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In reply to @pelagikat

@hornmaths maybe this? google.co.uk/url?sa=t&rct=j…

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can anyone help me with doing maths on complex numbers in javascript? stackoverflow.com/questions/1033… (cc @walkingrandomly)

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we've decided to send Cushing to Iraq as a safety precaution. Abdul has been telling us about the excellent swimming lessons he was given

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my nana has expressed an interest in twitter. Be good, people, or I will unleash her on you.

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stop underestimating your audience, Hollywood! "the pirates! in an adventure with scientists" is "the pirates: band of misfits" in the US

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In reply to @CardColm

@CardColm What would the minimum score for a question be? Allowing 0 would punish errors enormously

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In reply to @ColinTheMathmo

@ColinTheMathmo thanks for submitting that @aperiodical story to HN. We'll see how it goes this time round.

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burning a CD-R like it's 1999

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server still down, will be for at least another hour or so. Those dying to see the popular post can use coral mirror: aperiodical.com.nyud.net/2012/04/classi…

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how middle class am I? I've installed a minecraft mod where AIs do the mining for me and I take what they produce. #marxcraft

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes, caching is on now. Thanks again for sharing it. Good job this only happened on day 2

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As a mathematician, I think I'm qualified to extrapolate from these data.

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In reply to @outofthenorm2

@outofthenorm2 nice, but what's non-obvious there? I couldn't see an example that shocked me

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In reply to @Andrew_Taylor

@Andrew_Taylor for Balrogs, it's more of a commuter village than a town. No shared civic space. They had trouble getting past planning.

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In reply to @Electrokittie

@Electrokittie ...yes, coincidence. That's why they don't think being a criminal depends on the shape of your head any more

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In reply to @ColinTheMathmo

@ColinTheMathmo 7749 yesterday, 3403 so far today

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right, I'm finally going to record this fibonacci grids video. Just you see if I don't.

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In reply to @peterrowlett

@peterrowlett ha! on a serious note: visitors from HN don't click around. Hits on launch day had a much bigger spread round the site

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In reply to @peterrowlett

@peterrowlett very, very few. Beware that the referrers breakdown doesn't accurately catch everybody

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In reply to @peterrowlett

@peterrowlett umm... don't know.

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In reply to @Bishnavitch

@Bishnavitch sterlingarcherdraperpryce.tumblr.com

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My second ever #ff is for @aperiodical, my new maths magazine/blog I started with a couple of friends. Please have a look!

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In reply to @ColinTheMathmo

@ColinTheMathmo they dropped off a couple of hours ago. Seems only the top 10 or so links on the front page get any attention

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the smallest measurable quantity of waste is the time between you placing your foot on the opposite pavement and the green man lighting up

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In reply to @ColinTheMathmo

@ColinTheMathmo not sure if I do. If you'd asked me before...

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In reply to @ColinTheMathmo

@ColinTheMathmo ah yes, I do! Will email when I get home

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In reply to @mountain_ghosts

@jcoglan I used deck.js recently. Didn't have any trouble

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Dear Nature: would it kill you to run your old (1997!) articles through OCR? And cite survey data properly?

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In reply to @kenjilamb

@kenjilamb very interesting! I'll have to look into this later.

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twice today I've been thwarted by paywalls hiding academic research reported in the news, despite having access to my uni library!

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@Talithin way ahead of you dude: twitter.com/aperiodical/st… (but thanks!)

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trying to find a discount code for something. Google ad said 40% off, page said 30% off, code says 20% off. #deflationaryspiral

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just recorded the first Aperiodcast with @peterrowlett and @stecks. Out soon at the @aperiodical

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must stop accidentally following back people from this account instead of my various others

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hwo did I have D.A.N.C.E. in my head before turning on Radio Nova? Am I receiving it through my fillings now?

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In reply to @Tony_Mann

@Tony_Mann @jamesgrime contrapositive is "if this isn't a new, detailed talk, then you haven't seen me talk before"

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In reply to @Tony_Mann

@Tony_Mann @jamesgrime my gut says no. I was hoping the contrapositive would say something funny, but it didn't

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I'm all for challenging stereotypes but I don't think this ad has been placed particularly well.

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although, I suppose they might be going for the up-all-night-trying-to-do-a-calculation-on-wolfram-alpha demographic

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full disclosure: I have no idea what that product is meant to do

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In reply to @standupmaths

@standupmaths would you like to promote those with a post on @aperiodical?

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I could've saved myself half an hour if I'd written the tests for the sin function before the ones for the gamma function.

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In reply to @Tony_Mann

@Tony_Mann an amount on a different order of magnitude

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In reply to @Tony_Mann

@Tony_Mann I see your pedantry and raise you: looks like five things to me

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In reply to @mike_geogebra

@mike_geogebra excellent! I was just trying to show someone the web version a few weeks ago and couldn't find the page

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In reply to @mike_geogebra

@mike_geogebra do you want a post on the @aperiodical about this, or is it too early?

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In reply to @mike_geogebra

@mike_geogebra let's wait until June, then

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In reply to @standupmaths

@standupmaths now you've only got another ~200 Reuleaux mechanisms to reproduce: library24.library.cornell.edu:8280/luna/servlet/v…

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In reply to @outofthenorm2

@outofthenorm2 ... no?

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In reply to @outofthenorm2

@outofthenorm2 @standupmaths arg, stupid cookies! Terrible URL scheme. Try this: library24.library.cornell.edu:8280/luna/servlet/s…

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In reply to @walkingrandomly

@walkingrandomly I bet if you posted that as a comment on aperiodical.com/2012/04/whats-… good things would happen

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"Amending to your basket". I hate you, whoever you are.

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In reply to @JanvierUK

@JanvierUK nope!

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May

aargrgagrg what is the point in only releasing your EP on iTunes?

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In reply to @MarcusduSautoy

@MarcusduSautoy @Kit_Yates_Maths wasn't that famously used by a famous mathematician?

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this month's emusicsmas has been so barren I'm going to download the new Sebastien Tellier without even listening to it

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This girl's makeup has made her just staggeringly ugly, like a Hogarth caricature or a grown-up from an edgy mid-evening Nicktoon.

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Yes yes the male gaze etc etc, but I can't fathom what look she's going for. "Groucho Marx crossed with the Infanta of Castile"?

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Was given a free travel mug at Olive and Bean. Much like cash ISAs, this is free stuff just for being middle class and I now feel guilty

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In reply to @brittneybean

@brittneybean wow indeed! This is the first google result for "Lord Ashtar": newciv.org/nl/newslog.php…

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Both I and the tramp who smells of wee think this woman flirting very loudly on the phone is the most annoying thing on the train

1 favourite 0 retweets

In reply to @kenfodder

@kenfodder what happens if you bing ping.com?

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In reply to @kenfodder

@kenfodder ah no, I cleverly reversed the letters

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @MarcusduSautoy maybe I'm thinking of Smullyan: everything2.com/title/Logical+… (can't believe I just googled "smullyan pickup lines")

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In reply to @mathpunk

@mathpunk that's the kind of logic that leads to things like people.mpim-bonn.mpg.de/zagier/files/e…

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Those who liked the prime factorisation jumper (aperiodical.com/2012/04/knit-y…) can now buy their own - blog.jgc.org/2012/04/make-y… (via @ColinTheMathmo)

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In reply to @pkrautz

@pkrautz I do not! I've always been trying to prod my boss to look at European collaboration.

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In reply to @HoeJodgkiss

@HoeJodgkiss where's that from?

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I think every mathematician aspires to leave a grave as excellent as Boltzmann's: beautifulcentury.tumblr.com/post/211790069…

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In reply to @matheknitician

@matheknitician just spotted your Aperiodical thread on ravelry. Thanks!

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Instead of starting words with tw- because you're on twitter, change words normally starting with tw- to something else in normal speech

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if I can just get pelve people to join my campaign it'll be worth it. Until then, I'll be piddling my thumbs and peaking my panger

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there are enough Paris streets named after mathematicians to fill a Monopoly board. Let's do this. www-groups.dcs.st-andrews.ac.uk/~history/Socie…

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In reply to @brittneybean

@brittneybean they won't stop finding new ways to assault our senses until teenagers can text Lynx at each other on the train.

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this is why chemists should be discouraged youtube.com/watch?v=g8gJOC…

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A probability distribution in the flesh! Like a naturally-occurring Galton board

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oh my god, that guy who was in Doctors five years ago is still in Doctors! Is that long enough for a missing persons report?

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I finally have some time to catch up on a few weeks' worth of @trackinthebox. This week's picks look good.

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In reply to @brittneybean

@brittneybean can you remember when everyone set up their own front for microsoft's catalogue? It was ridiculous.

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having an emotional moment about how useful sagenb.org is.

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In reply to @haggismaths

@haggismaths snarks could be the solutions to a 4-player edge-colouring game?

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In reply to @JanvierUK

@JanvierUK yes, just imagine if he'd had an awkwardly long name like Kenneth

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why does ctrl-0 set the zoom to 125% in IE? Just... why?

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I had a dream last night that I received an awkward amount of change after paying for something with a note. What could it possibly mean?

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In reply to @standupmaths

@standupmaths recommendations for mathsy toys for a toddler? You bought some for your nephew, didn't you?

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Boo! RT @NTCouncilTeam: Conservatives hold Cullercoats, St Mary's, Tynemouth & Monkseaton North

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this means the tedious parking permit campaign will continue. Get over it, selfish tories!

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It's 2012. Why is copying text out of a PDF still so hard? Surely someone's written a PhD on inferring capitalisation, at least?

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In reply to @danaernst

@danaernst is oz.plymouth.edu/~dcernst/Talks… the canonical version of your futurama talk?

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In reply to @danaernst

@danaernst ta!

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In reply to @danaernst

@danaernst what happened to the Sage Notebook bit, for trying out permutations?

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In reply to @danaernst

@danaernst well, sagenb is being very slow for me on something else at the moment, so I'd guess not

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In reply to @ColinTheMathmo

@ColinTheMathmo "why are there infinitely many infinities, and why are N and R not the same one?"

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emusic only has jazz these days, so my library fills with jazz, so last.fm recommends more jazz. Help I'm stuck in a loop with a smooth beat

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In reply to @CardColm

@CardColm @ColinTheMathmo video or it isn't true!

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In reply to @Gelada

@Gelada @ColinTheMathmo what mathematician doesn't know about groups? Applied? It was in year 2 of my bachelor's.

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In reply to @Gelada

@Gelada @ColinTheMathmo well, they're on the IGCSE and being talked about for GCSE, so hopefully that won't last much longer

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In reply to @zetta3pt14face

@zetta3pt14face @Kit_Yates_Maths @MarcusduSautoy so I suppose on Absolute Radio pop is bigger?

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why do the previews on emusic take 10 seconds to fade up to full volume? They're only 30 seconds long!

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In reply to @Gelada

@Gelada I think if GCSE maths got split into "functional" and "pure" bits, someone wanted (permutation) group theory in the pure bit.

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is this the one yahoo! answers page that excuses the rest? answers.yahoo.com/question/index…

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I love an opportunity to visit Ian's Shoelace Site fieggen.com/shoelace/

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twitvid.com/NIHCQ - #valueadded @FakeElsevier

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In reply to @peterrowlett

@peterrowlett @MouldS it does say 1.2g of salt per portion in very small text just above...

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In reply to @peterrowlett

@peterrowlett ah! Now I have parsed your sentence differently and see you knew that

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Start then learning young. Might have been outmathsed at this birthday party :(

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Nerd cred restored: out of all the mathematicians at the party, one kid said I looked the geekiest.

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just drew a perfect 400x400px box freehand. #touchme

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In reply to @monsoon0

@monsoon0 another nice example is that the continued fraction (2,3,5,7,11,13,...) *almost* agrees with one of Renyi's parking constants

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In reply to @stecks

@stecks I have coloured in my Word Split. What am I looking at?

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compound noun required: the moment when you finally pick up a screwdriver to fix that thing that's been annoying you for months

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Schraubendreherholenmoment?

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The Atlantic on Blow - the missing copy opinex.tumblr.com/post/210396273…

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In reply to @standupmaths

@standupmaths people like you are the reason so few trains these days have a dedicated record store carriage. Buy local!

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Google Reader 0. Forget all you inbox zero types, this is a way bigger achievement.

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out now in the BBC Shop: the Today programme baiting people to shout at each other about nonsense topics at 8:58am - the complete collection

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In reply to @MarcusduSautoy

@MarcusduSautoy no MC Escher pose? Surely they'll let you pick it up if it's for art.

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Microsoft's advice on writing fast javascript or, in other words, "we're not as clever as the v8 people. You fix it." - msdn.microsoft.com/en-us/library/…

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brb, flagellating myself in penance for that design decision causing 1000x slowdown. Stand by my comments about IE's javascript though.

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help, I'm watching Austrian folk music videos on youtube and I can't stop. Every video is worse than the last!

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON can't work out if that's brilliant or stupid

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the contagion is spreading! youtube.com/watch?v=hWxnGE… How are there so many Dutch songs about skiing?

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I take it all back! When I have offspring, I will enforce singing of this on all car trips: youtube.com/watch?v=SvP-Je… EVEN THE SCHOOL RUN

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON never before has a tweet led to so much happiness

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In reply to @JanvierUK

@JanvierUK learnt : learned :: meant : meaned. America : wrong :: UK : right.

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In reply to @MathWhizz

@MathWhizz @aperiodical @lostinrecursion oh, thanks! I'm pretty pleased with it myself.

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In reply to @JanvierUK

@JanvierUK the argument could be made that they went months without *a* government but they had plenty of others to keep things ticking over

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In reply to @mathsinthecity

@mathsinthecity The Field Guide to Math on the National Mall - maa.org/pubs/fieldguid… - from @maanow

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I've added a cuboctahedron made of curler units (ceciliacotton.ca/2006/03/a-seri…) to the touchy-feely zone

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I'm open to claims that it isn't a cuboctahedron, by the way. Not sure the symmetries are right.

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In reply to @pkrautz

@pkrautz what's prompted this?

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In reply to @aperfect

@aperfect GCSE maths fail: equal area on the graph should represent equal measure. 1 year for new team looks bigger than for an older one.

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In reply to @mathpunk

@mathpunk sum(i=1 to 2000, log i). Approximate with an integral if you wish.

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In reply to @mathpunk

@mathpunk so precise answer from Python is 13,206.5. Integral approximation on paper gave 13,202.8.

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In reply to @mathpunk

@mathpunk sorry!! that was base e. Precise: 5735.5; approx: 5733.9

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In reply to @CardColm

@CardColm I tried that a while ago with our resident card trick fanatic (and a big fan of yours!) We got the angles hilariously wrong.

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I always make a point of sitting next to him if I can. Everyone else steers clear, so I get plenty of space.

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON I am... acquainted... with the smell of old urine, yes.

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when I grow up I want to be one of these skeletons youtube.com/watch?v=UFRA9E…

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What's the equivalent of "snail mail" for printed literature like books? I can't think of anything equally cheesy and rhyming.

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In reply to @Samuel_Hansen

@Samuel_Hansen fortunately, there seems to be one, and you're part of it.

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In reply to @pkrautz

@pkrautz oh, I suppose there's that. I sort of hate it, though. The beautiful thing about "snail mail" is the mollusk non-sequitur.

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In reply to @pkrautz

@pkrautz @Samuel_Hansen I dunno, we've done pretty well for the last ~3000 years, despite various systems of patronage coming and going

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an hour ago, I decided to get up to turn the heating on. Still hasn't happened. Can I actually stand the cold, or might my legs fall off?

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In reply to @pkrautz

@pkrautz yeah, but the uncommunicative mathematician isn't a recent invention.

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this might just be it - RT @rmehigan: @christianp e-mail vs snail-mail, e-books vs .....tree-books ?

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In reply to @pkrautz

@pkrautz I think this has boiled down to a question that requires a few years' scholarship and library-usage to answer. So not for twitter.

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In reply to @CardColm

@CardColm @alexbellos shameless!

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In reply to @IanMulvany

@IanMulvany the interface is so bad I'm now using tweetdeck. So, very bad.

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In reply to @Samuel_Hansen

@Samuel_Hansen @pkrautz oh absolutely. I'm just not worried about pure maths disappearing due to lack of communication.

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Shelf discipline has completely collapsed in this cupboard. No idea where anything is any more. Considering joining the Foreign Legion.

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In reply to @Pat_Hogun

@GPRPichot @pkrautz @Samuel_Hansen Cedric Villani is excellent!

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In reply to @Samuel_Hansen

@Samuel_Hansen @pkrautz and I'm not worried that that won't happen. Man, I'm bad at articulating opinions.

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In reply to @Samuel_Hansen

@Samuel_Hansen @pkrautz so what I mean is: pure mathmos on the whole are uncommunicative, but there are enough evangelisers to balance out

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My prime factorisation t-shirt by @jgrahamc has arrived! blog.jgc.org/2012/04/make-y…

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In reply to @aperiodical

@aperiodical @Gelada @pkrautz @Samuel_Hansen a point-counterpoint might be fun. Can I find a serious mathematician to back my side, though?

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In reply to @Samuel_Hansen

@Samuel_Hansen well, I'm still just a postgrad and my PhD has sort of stalled, so my opinions don't really have the weight of experience

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In reply to @peterrowlett

@peterrowlett nooooo! I still have things to do tonight!

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why does it take five seconds to paste plain text into windows live mail? Why is there no better free mail client for windows? AGRSGSGFDSAF

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In reply to @HoeJodgkiss

@HoeJodgkiss very nice!

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In reply to @DanielColquitt

@DanielColquitt I really disagree. I've never liked thunderbird.

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making myself stay up so there'll be a good program on the radio to fall asleep to later. Feels like bad logic.

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The seagulls are either very upset or very excited about this chap fixing the roof they normally sit on

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In reply to @HoeJodgkiss

@HoeJodgkiss this might be good reference material for you if you're still mathsing: pinterest.com/olololol/

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In reply to @peterrowlett

@peterrowlett @pkrautz double retweet! Proudest man in Britain?

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why would the PDF version of an article cost money while the HTML version is free? HTML is more convenient.

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In reply to @komiga

@komiga no, not complaining. Just confused. Maybe I'm missing something.

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In reply to @peterrowlett

@peterrowlett it gives you the citation with page numbers in the HTML.

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In reply to @peterrowlett

@peterrowlett although, as the HTML is freely-available, I'd cite it with a DOI

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In reply to @peterrowlett

@peterrowlett they've put markers for the page numbers on the side of the HTML

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oh! Might have solved it! It's possible I loaded the HTML version of the article while at uni, but now I'm back at home. Doiii

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I've recorded a pretty OK 10 minutes of maths exposition but video editing on windows is either expensive or doesn't work. Suggestions?

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In reply to @IanMulvany

@IanMulvany That looks dire! Are those breadcrumbs?

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In reply to @aperfect

@aperfect thank god Jayce is at the end of that cavalcade of humdrum. But no Ulysses?!

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Made with one cut! (and a lot of folds)

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In reply to @JurieHorneman

@jurieongames @danielpunkass well, now I know what our US version is going to be called

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In reply to @Samuel_Hansen

@Samuel_Hansen less tweeting! more editing! Hyaaa!

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In reply to @Samuel_Hansen

@Samuel_Hansen want to know what I did today? 5 games of Company of Heroes and a kirigami butterfly.

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In reply to @Samuel_Hansen

@Samuel_Hansen oh, I forgot the enchiladas. I made some OK enchiladas.

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In reply to @Samuel_Hansen

@Samuel_Hansen then I must admit defeat.

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In reply to @haggismaths

@haggismaths that would make a good Snapshot on @mathsinthecity

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In reply to @COOLIO_FEAT_LV

@RANIELDANSON we should envy these people for their ability to enjoy such tedious lives

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the documentation for Asymptote is so poor! raaaaaaage!!!

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THIS TOOK FAR TOO LONG TO MAKE somethingorotherwhatever.com/3dpeg.gif

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.@CardColm is cooking up something really nice for the @aperiodical. Should be out on Monday. Be there or be square! (or is that circle?)

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In reply to @mountain_ghosts

@jcoglan yes! This is what puts me off using Ruby! You have put it into words which I agree with!

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In reply to @outofthenorm2

@outofthenorm2 great post! Like appearances of Elvis, appearances of the Fibonacci sequence are massively more satisfying when based in fact

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Hamilton is an anagram of "math lion". Didn't help him calculated his fuel yesterday though!

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mysteriously, several days later, Windows Movie Maker is now able to open this file. Really need to buy a better program.

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You're through to the reality helpdesk. An operator will assist you with your paradox shortly. Please hold. youtube.com/watch?v=boJD_g…

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In reply to @pkrautz

@pkrautz umm, apropos what? Getting npm on windows is hard (or was, haven't looked recently) so I haven't done much with node.

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In reply to @pkrautz

@pkrautz thought so. Is this to do with the people who want pre-rendered SVG?

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in just before the bell: today is May's first unambiguous date! Join hands with me, America! We can understand each other for 18 more days!

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In reply to @HoeJodgkiss

@HoeJodgkiss get it as a tattoo. Can't rely on the t-shirt still being there when it's relevant.

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Another Aperiodcast, covering the last almost-fortnight on the @aperiodical, with @stecks and @peterrowlett: aperiodical.com/2012/05/aperio…

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In reply to @Andrew_Taylor

@Andrew_Taylor your non-transitive dice article has been picked up by Information Week: informationweek.com/aroundtheweb/g…

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hah! That article available selectively in HTML (tweets passim) is now PDF only. What am I doing wrong, PNAS?

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Domino's, Imma let you finish, but Piccante make the best damn takeaway pizza on Tyneside!

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I recorded a video about the recent flat torus embedding. It features tori of both the Slinky and plasticine varieties: aperiodical.com/2012/05/torus/

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In reply to @pelagikat

@hornmaths at a guess: first one plot y^2 against x, and second one plot 1/y against x

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In reply to @walkingrandomly

@walkingrandomly @aperiodical we have, and I thought it was in the news queue, but apparently not. I'm no CAS person: why Octave over Sage?

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In reply to @walkingrandomly

@walkingrandomly as I don't know enough to make an informed decision, would you like your post reposted verbatim on the aperiodical?

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In reply to @mountain_ghosts

@jcoglan *certain* Android browsers don't support it. My Transformer does, but my Desire HD doesn't.

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Newcastle @MathsJam is next Tuesday, the 22nd! Charles Grey pub, 7pm. Yaaaaaaay! mlkshk.com/p/FH9J

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.@aperiodical yo dawg I heard I like adding, so I added adding to my adding so I can add while I add... #sorry

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In reply to @walkingrandomly

@walkingrandomly email root@aperiodical.com

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this is the best defence of Nikola Tesla I've ever seen: theoatmeal.com/comics/tesla

2 favourites 4 retweets

discrete and discreet - any more #anagrhomophones?

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Yahoo! Answers, you have redeemed yourself: answers.yahoo.com/question/index… @MathsJam

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I nominate you, woman on the opposite platform, for Best Dressed Person Today. Sartorial excellence deserves to be recognised!

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Dude is sitting in his car. Listening to panpipe music. Waiting for his wife to come out of Boots. Silently hating everything.

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In reply to @walkingrandomly

@walkingrandomly I'm expecting an email from you so I can set you up as a post author on the site

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In reply to @NoelAnn

@NoelAnn @IMAmaths it can't, really. There is a project called JSXGraph which does (and uses MathJax for notation): jsxgraph.uni-bayreuth.de/wp/

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In reply to @NoelAnn

@NoelAnn @IMAmaths but broadly speaking there isn't a perfect solution for drawing graphs like there is for displaying mathematical notation

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dear IE's developer tools: who does '{...}' help? I know it's an object! Literally everything in javascript is!

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In reply to @ben_nuttall

@ben_nuttall hey, those Pennines aren't going to cross themselves

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In reply to @elinoroberts

@elinoroberts I had the same thought in pretty much the same place this afternoon

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Thinking "hey, I should shazam this song so I can download it". Realising that I'm listening to my own music. #excellenttaste

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In reply to @EliotBall

@EliotBall nice pictures! Were they made in Mathematica?

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In reply to @EliotBall

@EliotBall I don't have Mathematica. Coming to realise with my recent blogging efforts that I should pick a CAS to learn.

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In reply to @CardColm

@CardColm very clever!

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In reply to @EliotBall

@EliotBall Look North makes Look North look like a joke

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hahaha! edskes.net/ie/ie8overflow…

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In reply to @peterrowlett

@peterrowlett yes, mission complete. All in favour of closing the site?

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@CuriousatLife there's a typo in your bio: "exercice"

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I was not sensible with chillies tonight. It's not that they're too hot, it's that I seem to have got them all over my face. #painmoustache

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In reply to @Plattsc

@Plattsc I know! I'm really desperate though!

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very nice fact about fibonacci numbers! mathlesstraveled.com/2012/05/15/fib…

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I know the NYT is pretty fruity about house style, but "1 in 3 Americans _are_ obese"?

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Amount I am unhappy about the new version of pagelines losing all my widgets: 15 kilofuries.

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The fury is defined as the amount of anger required to boil 1g of water just by glaring at it.

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In reply to @EliotBall

@EliotBall fury does not diminish with distance, as evidenced by Nikita Khrushchev's volcanic wobbly thrown during the Cuban missile crisis.

0 favourites 1 retweet

In reply to @mathsinthecity

@mathsinthecity larger subway networks tend to a common topology: science.slashdot.org/story/12/05/17…

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In reply to @alexbellos

@alexbellos so if P=NP, does that mean we're all diminutive Belgian detectives?

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I apparently dropped my payslip on the metro latest week. The driver has posted it back to me! @My_Metro, give J Leigh a pay rise!

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In reply to @My_Metro

@My_Metro or, congratulate yourselves for running such good customer service.

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Cushing's evil doppelganger is stalking the halls

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In reply to @gingerbeardman

@gingerbeardman who are the users? We've just given up on textile because it wasn't worthwhile for the hassle it causes with whitespace

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In reply to @jamesgrime

@jamesgrime aww, I printed it out but my non-Pringles tube is *just* too big

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In reply to @peterrowlett

@peterrowlett oh, she changed her name! Thanks for pointing that out

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In reply to @standupmaths

@standupmaths yet again, the North East eschews nerdy comedy. We've got a ruddy Science City!

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In reply to @franklinheath

@franklinheath @jamesgrime mine was as big as it could be. I just had a very wide tube. Going to try with avreal pringles tube today

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eesh, pagelines needs upgrading AGAIN. Blame me if the @aperiodical disappears for a bit.

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wow, it worked! Now watch as I blitz the news queue. Steady yourselves, this might be more maths news than you can comfortably handle.

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man, if I had a pound for every time someone has asked me this: books.scientificamerican.com/books/why-is-t…

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do you ever get confused about which way an email is going and write your own name in the To: box?

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Man, I wish I had the kind of autism that leaves you with the mental ability of a child. This dude is ENJOYING the stairs.

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In reply to @Samuel_Hansen

@Samuel_Hansen just remembered I need to arrange those maths communication questions! They're back on the imaginary to-do list.

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In reply to @alexbellos

@alexbellos do you know Philipp Legner? The site does look great but very ambitious for one person!

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Dust omelette! It just occurred to me that I've never cleaned my tumble dryer's filter

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In reply to @JanvierUK

@JanvierUK because that is what you perceive it to be.

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SPACE CORTÉS: a game where the aliens are well-organised and technologically superior, but massively outnumbered by you, the puny humans.

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In reply to @jamesgrime

@jamesgrime @franklinheath I'm on attempt no. 3. Turns out my printer needs "borderless printing", not just "normal-size printing", I think.

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In reply to @Bishnavitch

@Bishnavitch I've just noticed the sound on this maths-aid video is completely out of sync vimeo.com/32856552

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In reply to @GhostMutt

@GhostMutt excellent quests!

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In reply to @elinoroberts

@elinoroberts I have a planetarium question! A colleague was asked to provide JPEGs for a show, not something lossless. Is that normal?

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this is how you sell paintbrushes! facebook.com/photo.php?fbid…

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These buffalo burgers smell like cleaning product. I'm very confused.

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In reply to @standupmaths

@standupmaths take lots of pictures for @mathsinthecity!

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I earned my PhD in discredited theories at the University of Derby Discarded Learning Centre

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Group theory is *not* abstract nonsense, so stop saying it is.

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have decided to be the change I want to see in the world and draw some maths to go on the walls of the department. Ideas?

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In reply to @pkrautz

@pkrautz is the new @MathJax https CDN address official yet? It still says cloudfront in the docs mathjax.org/docs/2.0/start…

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Tomorrow at Newcastle @MathsJam I will be making some maths propaganda posters to decorate my department's uninspiring walls.

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@nulibsage when? Where? I might be able to not miss it this time

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@nulibsage well then! Perhaps you can work in a plug for tonight's @MathsJam as a social media science thing

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Reminder: Newcastle @MathsJam is tonight, 7pm, at the Charles Grey. I have a paper enigma machine, some fibonacci facts and a lot of puzzles

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Danger: mathematicians at work

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@nulibsage it has now: twitter.com/#!/christianp/…

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In reply to @pelagikat

@hornmaths you might also like to try curler units: britishorigami.info/academic/curle…

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In reply to @MathsJam

@MathsJam to CAM: but the deck is still shuffled, right?

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In reply to @monsoon0

@monsoon0 see britishorigami.info/academic/curle…. Should end up looking like ceciliacotton.ca/2006/03/a-seri…

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This is pretty excellent youtube.com/watch?v=uI5FyU…

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The uni has put a table tennis table outside my building. I don't think I'm ever going to do any work again.

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In reply to @peterrowlett

@peterrowlett I can only think that's the case. Don't mind though.

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Tynemouth Knobbly Knee Brigade out on manoeuvres. Visitors are warned that socks may be worn with sandals without warning.

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In reply to @gingerbeardman

@gingerbeardman yep. The net makes a satisfying CLANG when you hit it

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I love the summer so much! youtube.com/watch?v=CKHTlt…

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defenestrating furniture until PHP gets its act together

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PHP hate: staring at innocuous-looking lines of code to see if they have any side effects, or if they're exactly as stupid as they appear

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In reply to @Htbaa

@Htbaa the what what now? There's only one way to order parameters, isn't there?

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...and now I've found an eval statement in this module's javascript. That's it. Prepare the napalm: this code is going to burn.

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In reply to @stecks

@stecks I am with a founder of the Melbourne puzzle hunt!

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In reply to @HoeJodgkiss

@HoeJodgkiss that exists? How do I watch it?

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going to go down to the beach tomorrow and write the next @aperiodical round up. It's going to be good.

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In reply to @jamesgrime

@jamesgrime @numberphile oh no, either you've scooped us or inadvertent synergies are happening. @aperiodical has a similar post brewing.

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In reply to @jamesgrime

@jamesgrime @numberphile @aperiodical and we were all scooped by Conway and Guy 14 years ago.

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In reply to @stecks

@stecks it was Maurice Chiodo. He's a group theorist now.

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In reply to @jamesgrime

@jamesgrime @numberphile & I'm a tiny bit disappointed you didn't fit in a "crore, what a palaver!" joke. Maybe that can be my contribution

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New businesses: "It's Rude To Stair" (elevators); "Ply Captain and the World of Tomorrow" (origami)

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In reply to @MathsJam

@MathsJam who presented the folded-paper heart in a single cut at last year's big MathsJam? I'm having a total brain-blank

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In reply to @stecks

@stecks thanks!

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pretty annoyed that I seem to have lost an entire post's worth of research, on a really interesting subject.

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In reply to @NTWH

@NTWH @NorthEastNT "deadheading, edging and weeding" sound like the latest ways of wasting youth. eg "I lost my junkie son to deadheading".

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and for my next trick, the news queue!

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It's the last square day of the year. Previous square days: 16/4, 9/3, 4/2, 1/1.

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In reply to @sjccmaths

@sjccmaths 3rd of September? That's the first day of school usually, isn't it?

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rainbow origami street art thisiscolossal.com/2012/05/origam…

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In reply to @pelagikat

@hornmaths it's well worth doing if you're physicsy, anyway.

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Tynemouth is eerily empty.

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In reply to @standupmaths

@standupmaths I'm going to the Henry Moore thing at the science museum tomorrow. Are you by any chance around?

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Weeping a little tear for unloved maths: the guides at the science museum had never heard of the Henry Moore exhibition in the maths hall

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Oh. Maybe this is why: this is the whole exhibit

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How recent? #disappointment

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In reply to @peterrowlett

@peterrowlett still not clear enough. I reckon "@aperiodical triumvirand" would be better. #lahahahatin

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In reply to @peterrowlett

@peterrowlett ...but wikipedia tells me it's just "triumvir". Well, I know what my bio will say, never mind yours.

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For the first time in just over five years, my twitter bio has changed.

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In reply to @peterrowlett

@peterrowlett @rmathematicus @Talithin I've spent half an hour looking for any information on what he did, and it seems none is available

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In reply to @peterrowlett

@peterrowlett I like the "decoding tabloid news" tag

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In reply to @standupmaths

@standupmaths Unhelpful headline territory, right?

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In reply to @peterrowlett

@peterrowlett should I comment on that?

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mathematicians: how do you add a prime in LaTeX to denote, for example, function derivatives? plus.google.com/11130061692066…

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@Nathan1123 it can, but is that an equilibrium solution?

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In reply to @gingerbeardman

@gingerbeardman I bet there's a sad story behind that lot all being in the charity shop at the same time

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In reply to @standupmaths

@standupmaths I look forward to the Betamax of your contemporary dance interpretation

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In reply to @standupmaths

@standupmaths wouldn't that be a cone?

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Had a nice day at Kingston university giving a workshop on @NclNumbas. Now walking along the Thames back to the station.

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In reply to @stecks

@stecks that reminds me that I must get round to making a rhythmomachy board

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In reply to @stevieb

@stevieb don't think so. Bill is probably going, though.

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Finally listening to this week's #mathmaths. I hope Sam didn't say anything bad about me.

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In reply to @monsoon0

@monsoon0 it's in French! That's your problem.

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In reply to @stecks

@stecks that's the title of our post on the anti-Turingpalooza backlash.

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In reply to @peterrowlett

@peterrowlett thanks for plugging the call for the interesting research. Nathan says still no submissions though :(

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Bouncy little foals / running round telegraph poles / in a field near Stow-on-the-Wold.

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Oh my god, Diana is on the front page of the Express. WHO IS STILL BUYING IT FOR THAT?

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WANTED: reordering of the alphabet with the most contiguous words in it

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In reply to @alexbellos

@alexbellos would you like a new random number, or the same one? Because the one I put in before was, I believe, the most random.

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Wolf moon sweater: check. Bag with 80s song lyrics scrawled on: check. Face full of contempt for life's bounty: yep. Sort of hate this guy!

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A variety of geometric shapes each made with just one HTML element and a lot of CSS: css-tricks.com/examples/Shape…

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In reply to @alexbellos

@alexbellos whoops, that came from the wrong account! It was me! I've submitted another random number, anyway.

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In reply to @rob_botch

@rob_botch strictly contiguous. So SCAT has SCAT & CAT, but CART doesn't get CAT

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I just don't have it in me to write a limerick. I just can't get the rhythm right in my head

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In reply to @rob_botch

@rob_botch not necessarily.

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the link between a journal's impact factor and no. of citations of its papers is decreasing: arxiv.org/abs/1205.4328 (via Timothy Gowers on g+)

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the word in the English language containing the most smaller words has 13 letters and 16 subwords, but is too rude for twitter!

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sorry, that's the word with no repeated letters, containing the most contiguous subwords

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In reply to @CardColm

@CardColm of words which use letters at most once, I have found the one which contains the most contiguous subwords, but it's very rudge

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In reply to @CardColm

@CardColm I mean rude

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Problems with the Mathematical Gazette: costs £99 a year; articles available online only as low-res scanned-in Word documents

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Problems cont.: submissions by post only: two typed copies or floppy disk (surely not any more!); no online index of articles past 2008.

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In reply to @stecks

@stecks robot makes screen wall, sings happy song while doing so: vimeo.com/39373093

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Estimated readership of the Mathematical Gazette: 7,000. Unique readers of the @aperiodical this month: >25,000. Apples and oranges, but...

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In reply to @matheknitician

@matheknitician @haggismaths ooh! A knitted version of this interpretation of the hilbert curve would look good: corte.si/posts/code/hil…

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In reply to @MarcusduSautoy

@MarcusduSautoy have you got links for the other two? I'll write a post on the @aperiodical about them

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In reply to @CardColm

@CardColm not sure what you're talking about

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In reply to @CardColm

@CardColm ah, I wasn't sure what to make of that, because it looked like you were still editing it

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If this woman stopped gurning, maybe her train would arrive. #worthatry

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In reply to @peterrowlett

@peterrowlett @stecks 1.2million HTTP requests on the aperiodical this month. My analysis tool needs beefing up...

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@jfgregg I can assure you that isn't the policy. We've turned down a few things.

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June

starting BlitzMax for the first time in forever. The impulse to create games has reappeared

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it is now my life's goal to devalue the US dollar until I can afford one of these thecitygirlfarm.com/collections/ch…

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sumatrapdf opens postscript files on windows! Goodbye, rubbish GhostView! I hope to never see you again!

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In reply to @Tony_Mann

@Tony_Mann you're going! Excellent! Please write something about it afterwards, I'm so annoyed I can't go.

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fimdalinha.com/whistling/

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In reply to @monsoon0

@monsoon0 not for the purposes of my post about Hay Festival, but if you'd like to say more about what you do, we have a forum for you.

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In reply to @monsoon0

@monsoon0 would you like to write a longer post for the aperiodical about it? And did anything ever come of your Aus maths site idea?

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In reply to @mickybullock

@mickybullock @SparksMaths keep an eye on aperiodical.com/category/main/…

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In reply to @stecks

@stecks my brother has some goslings too! We paid them a visit last weekend flickr.com/photos/aperfec… (he also has a silly-expensive camera)

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In reply to @OddballDave

@OddballDave I didn't make much progress. I've put it online at somethingorotherwhatever.com/posty.zip if you want to have a look.

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In reply to @JanvierUK

@JanvierUK never cancel a barbecue. That's how the weather wins.

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Kimya Dawson on a furniture advert. Wasn't expecting that ever.

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My greatest challenge as a mathematician is explaining the UK's car licence numbering scheme to my mum. 09,59,10,60,11,... WHAT IS SO HARD

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We had to break out diagrams, but she claims to have got it now. #codingtheoryformothers

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In reply to @icecolbeveridge

@icecolbeveridge I just go with "add 50 for the second half of the year"

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In reply to @haggismaths

@haggismaths remind me to send in a photo of princesses being captured by finite state automota living on graphs when it's a work day again

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now taking orders for my new range of Provencal crockery, S'il te Plate.

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Trying to explain to the dog that he is too old and stupid to be in charge of when he goes out for a poo.

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Wow, the @aperiodical blasted past its 300th published post last week. Thanks for reading!

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Newcastle Review of the London Review of Books: very good, but sometimes the reviewers don't bother to review the books they're reviewing

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now measuring the passage of time in Watts-yawns: the 30-60 seconds at the start of a Reggie Watts track when he sets up his loops

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In reply to @qikipedia

@qikipedia Yo dawg... flickr.com/photos/9291574…

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In reply to @peterrowlett

@peterrowlett @MoMath1 now we need to find a wealthy benefactor who will send one of us (me) to New York for opening day.

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In reply to @acmescience

@acmescience excuse me where is your @aperiodical employee smart card? No, I think the only solution is to send me, expenses paid.

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In reply to @acmescience

@acmescience I believe that trips to New York, and its associated eateries and museums of math, require the steady hand of an Editor.

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In reply to @acmescience

@acmescience ...steady hand and healthy appetite of an Editor. Oh well, twitter's enforced brevity enforced the delivery of half a quip!

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In reply to @SecondRateMinds

@SecondRateMinds @Samuel_Hansen best post yet on that blog.

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Information Age: searching a PDF of a long article for a keyword. Idiot Age: your keyword contains a digraph for which TeX uses a ligature

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In reply to @standupmaths

@standupmaths I'm finding the progress of your beard much more interesting. Is it chilly up there?

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In reply to @GeorgeBray

@GeorgeBray @gingerbeardman "In contrast, in Britain many children get to know authority through their social workers." - teLOLograph

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In reply to @standupmaths

@standupmaths for pre-emptively answering that question with a question-begging question, do I get some Nordic tat?

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In reply to @GeorgeBray

@GeorgeBray @gingerbeardman for a much better essay about Japanese "shame" culture: cabinetmagazine.org/issues/31/ivy.…

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In reply to @peterrowlett

@peterrowlett let's give that a little prod...

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In reply to @ColinTheMathmo

@ColinTheMathmo @standupmaths so glad this turned out OK. I was worried Colin was getting prize-crazy.

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In reply to @standupmaths

@standupmaths is #whereML sustainable? You're like parents looking for souvenirs for your kids, but your kids are everyone on the internet

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Jessie Ware's songs are nice to listen to, but only when not accompanied by video. Is it her face? That is not a nice thought.

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I think I want figure 20(a) of this paper on a t-shirt carma.newcastle.edu.au/jon/numtools.p…

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In reply to @mike_geogebra

@mike_geogebra wow, what a lot of progress! It seems loads faster - how did that happen?

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emailed a mathematician to ask for permission to use one of their figures in a blog post. Got some fantastic 5000x5000px images back. Happy!

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In reply to @mountain_ghosts

@jcoglan but as it's deterministic, storing the program is functionally similar to storing encrypted passwords

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In reply to @Gelada

@Gelada sort of, but sagenb.org is also keeping up with technology and has all of Sage behind it.

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In reply to @mountain_ghosts

@jcoglan aha! Good point.

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The barber's on Eldon Square has closed! But I am like a shaggy ram left out on a hilltop too long! O woe!

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I love reading @nulibsage's RSS feed of newly acquired maths books. Lots of interesting ones today: ncl.ac.uk/library/resour…

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just looked down at the prime factorisation t-shirt I'm wearing and decoded a number. It works! (blog.jgc.org/2012/04/make-y…)

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Sat outside Spy wearing a maths t-shirt. Never felt so uncool.

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it seems that in wordpress's image insertion interface, the thumbnails are just the original images resized. This is bad when they are 5Kx5K

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In final training for the Beard Growing event at the Olympics. Almost there, but my dismount still needs a little work.

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In reply to @kenfodder

@kenfodder particularly markdown parsers

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED is this one of those trick statements where it's that you're having an out of body experience?

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secure: logging into your terminal with an SSH key. insecure: forgetting that happens, and typing your password into the shell.

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does anyone still play Red Dead Redemption on the xbox? Do any of those people fancy a quick round of shooties?

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In reply to @qikipedia

@qikipedia that's assuming that all vampires successfully feed

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In reply to @mountain_ghosts

@jcoglan I take it it's too much effort to write a regexp -> FSA algorithm, then take random walks on that?

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In reply to @mountain_ghosts

@jcoglan something like this, slightly too long for a tweet: gist.github.com/2891557

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In reply to @mountain_ghosts

@jcoglan probably not, since nobody says things like "at MOST n uppercase letters".

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In reply to @mountain_ghosts

@jcoglan basically: I'm a mathematician, so I immediately looked for the strings Vault can't generate, never mind if they're not needed.

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In reply to @mountain_ghosts

@jcoglan with loads of zero-width lookahead. eg: zorched.net/2009/05/08/pas…. Better models of computation exist, but regexps are easy to write out

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.@FakeElsevier who let Xzibit pimp sciencedirect? What's the deal with the hydraulic header & footer when you scroll? #addedvalue?

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In reply to @Bishnavitch

@Bishnavitch @AdamJackzon yes! And I'm having the day off work today, so I'll definitely still have enough energy to play this evening

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had a little panic yesterday when I forgot what my favourite number was. It's 3435, because 3^3+4^4+3^3+5^5 = 3435.

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In reply to @JamesMoosh

@JamesMoosh exactly. 3435 is improbable.

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give me $\cos(\arcsin(\sqrt{-3}))$ good reasons why I shouldn't extend the domain of these functions to the complex plane

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"part time" and "no fixed hours" are a terrible combination of words in an employment contract.

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In reply to @icecolbeveridge

@icecolbeveridge that was exactly the joke

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In reply to @icecolbeveridge

@icecolbeveridge because cos(arcsin(sqrt(-3))) = 2.

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Classless dudes with more Paul Smith shirts than hairs on their heads impeding my progress down Front Street.

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In reply to @JanvierUK

@JanvierUK I'll guess the former, since I have no idea what you're talking about

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eeee!!!! SO CUTE kuriositas.com/2012/06/amazin…

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RONALD FISHER, THE FAMOUS STATISTICIAN!!! youtube.com/watch?v=bVMVGH…

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facebook: how am I meant to click the "developers" link at the bottom of the page when infinite scroll keeps punting it downwards?

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I've just spent LITERALLY AN HOUR recording myself proving a pretty simple fact about fibonacci numbers. Online later, if youtube can cope.

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Seeking investors for my 18th century pleasure palace/hot chocolate bar, "Rococoa".

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Talking of which, the co-op's hot chocolate is pretty decent

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GRzczxagggg just ruined the grand prix by loading bbc news! Poo!

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just blogged some problems I've posed myself but haven't thought very much about. Any input appreciated: checkmyworking.com/2012/06/proble…

1 favourite 1 retweet

In reply to @standupmaths

@standupmaths I bought a very nice winter coat for not very much money in the week that was hot. Inadvertent planning!

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wherein CP spends almost an entire hour proving a moderately interesting fact about fibonacci numbers: youtube.com/watch?v=MMttZb…

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@Nathan1123 does that mean you watched my video all the way through?!

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@Nathan1123 wow, jolly good! Another fun fib fact: Fn divides Fm iff n divides m

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Sandwich shop: I can have choritzo but they're out of djalapeenos. Crossiants still available. Glad they're better at cooking than spelling

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In reply to @brittneybean

@brittneybean that's either a low number of females for a conference or a very high number for a singles tennis match

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If it could stay exactly this temperature and humidity for a while that would be excellent.

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No, fewer signatures is more powerful! "@johnnysofhayle: fans of homeopathy - gvnt is trying to restrict it, so please sign this petition"

1 favourite 4 retweets

In reply to @mountain_ghosts

@jcoglan I can help with this, but on my phone at the moment. Email christianperfect@gmail.com if you want to work through it

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In reply to @mountain_ghosts

@jcoglan idea which worked on the train does not work when in front of a blackboard. Might email later if I sort it out

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In reply to @mountain_ghosts

@jcoglan ok, I have working python code! Going to write an explanation then send it to you

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In reply to @plusmathsorg

@plusmathsorg you're doing a frankly unreasonable number of great things. I can barely keep on top of the news queue at the aperiodical!

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In reply to @mountain_ghosts

@jcoglan here you go: I wrote it up on my blog so everyone can benefit - checkmyworking.com/2012/06/conver…

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not sure what time Marshall's closes. Fear it may be in the past. #chishandfips

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In reply to @jgrahamc

@jgrahamc it's an exponential series, but growing more gently than powers of two. That might be why it looks good.

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have at you, @aperiodical news queue! en garde!

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there is an "Athena SWAN" award for promoting recruitment of women in higher ed. Would the male equivalent be "Rambo GORILLA"? #terriblename

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dear Manchester: fairly sure you weren't that far inland last time I looked. Please move back.

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I wish windows media player would just quit without me having to drive a stake through its wicked heart every single time.

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In reply to @mountain_ghosts

@jcoglan how were you generating characters before? Using Math.random() and rounding, or what?

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If this dude's name isn't Wilfred I will have to report back to my home planet that I have learned nothing of humanity's ways

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In reply to @mountain_ghosts

@jcoglan can make one in 15 minutes when I get into work. A reference implementation in haskell would look great, actually

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In reply to @mountain_ghosts

@jcoglan but really, statistics should verify your implementation, not comparison with my potentially-also-broken version

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In reply to @mountain_ghosts

@jcoglan I've updated the gist with some sample output gist.github.com/2911970

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have just eaten a very nice spiced cumberland pork pie from the posh pork pie stall in the market at monument

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In reply to @Bishnavitch

@Bishnavitch not sure. I asked the lady what was in it and she just told me the price. Very confused.

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working through these testing reports is going to kill me

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In reply to @eAssess

@eAssess but that isn't really a blog, because that post doesn't have a unique link. Where will it go when the next article appears?

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In reply to @stevenstrogatz

@stevenstrogatz I wrote up your UK map redrawing paper for @aperiodical but couldn't find what "modularity" means. Is it somewhere in there?

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In reply to @CardColm

@CardColm yes I did! Thanks.

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Am appalled at how good our first year mathematicians' handwriting is. Though volunteers for a UX test might not be a representative sample

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In reply to @aperfect

@aperfect but then you've made two mistakes

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In reply to @stevenstrogatz

@stevenstrogatz thanks, but [16] refers to [15] and [15] is closed access. Can you give a handwavey description of what it measures?

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In reply to @stevenstrogatz

@stevenstrogatz never mind, got access through VPN to my uni. Would "it's a measure of how much better than random the division is" be fair?

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In reply to @stevenstrogatz

@stevenstrogatz ah, super! It didn't even occur to me to try wikipedia

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this album is completely superb: Floreat by Mara Carlyle emusic.com/listen/#/album…:

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looking for angel funding for my lactose-free milkshake bar, "Whey Out West"

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In reply to @peterrowlett

@peterrowlett at that point I would just forget the whole HT/MT/xT paradigm and have a "via <firstdude>, <seconddude>" at the end

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In reply to @ben_nuttall

@ben_nuttall 90s road trip! Hope you've got your three quarter-lengths on and a walkman in your pocket.

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In reply to @CardColm

@CardColm @peterrowlett I couldn't possibly say

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In reply to @Bishnavitch

@Bishnavitch ehhh, which one's that? Yes provisionally.

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In reply to @Bishnavitch

@Bishnavitch at 10! No way!

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Sprained my knee playing table tennis. I hope it doesn't swell up or do anything more painful than it currently is

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In reply to @mountain_ghosts

@jcoglan four twitter accounts was my limit for finally switching to tweetdeck. I hate it, but it's the easiest option

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arg! The next @MathsJam is next week! Where did June go?

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wordpress 3.4 does twitter oEmbed, finally!

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hahahahahahhaha I've just seen the cover of Catwoman 0 hahahahahahahaaaaa

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In reply to @DrSaraSantos

@sotnasaras secondary challenge: do it in a foreign country. Tried it once on a girl in a Flunch in Brussels. She just handed my coins back.

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In reply to @mountain_ghosts

@jcoglan he's right though, using his name in phrases is fun: "Cameron Up The Khyber", "Cameron Obscura", etc. ad infinitum

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In reply to @mountain_ghosts

@jcoglan I haven't yet! There's some interesting discussion of methods in the comments on my blog, if you want to pass some time.

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In reply to @mountain_ghosts

@jcoglan ok, I might have some time to look in a few hours

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In reply to @mountain_ghosts

@jcoglan I've been meaning to say - did you just copy my code to compute stats? Because mine was very wrong.

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In reply to @mountain_ghosts

@jcoglan good! Because my original code calculated num. samples/num. characters. Was on the verge of handing my degree back when I noticed.

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In reply to @mathsinthecity

@mathsinthecity only one math? Is the supply running low?

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In reply to @plusmathsorg

@plusmathsorg I would DM you if you were following me

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In reply to @plusmathsorg

@plusmathsorg have you got the princess in a castle puzzle already? @standupmaths did a video after I told it to him: youtube.com/watch?v=nv0Onj…

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Day 2 of my knee's separation from its socket. Have brought in Archbishop Desmond Tutu for reconciliation talks.

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If that fails, I have a roll of tubigrip. It's a tense moment. (I WISH! do you see what I did there?!?!)

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In reply to @mountain_ghosts

@jcoglan oh, I was exaggerating. It's not too bad, more of a sprain. It happens all the time because I have really weak ligaments.

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Eldon Square is a mixed bag: all neatly cut lawns and teenagers giving themselves cancer until their peers love them.

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In reply to @DrSaraSantos

@sotnasaras or International Wechsel. (does 'wechsel' rhyme with 'rescue'? Close enough)

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In reply to @JanvierUK

@JanvierUK suppose I wish "cakes" to be a euphemism for something. Which account should I follow?

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wanted: indicator, chemical or mechanical or whatever, that I have forgotten to shake a bottle of orangina before taking a swig

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Targetted advertising in the Newcastle University student union: we don't have a physics department

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I'm sure I catch my site's hit counter on palindromes more often than chance would allow

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In reply to @mathpunk

@mathpunk no. Paste it into json.parser.online.fr or try JSON.parse(document.getElementsByTagName('pre')[0].innerText) in your browser

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In reply to @mathpunk

@mathpunk you need square brackets around the "keywords" array

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In reply to @ColinTheMathmo

@ColinTheMathmo wow, defined in terms of circumference not radius! Did that rule start as "must complete a full roll before being touched"?

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@nulibsage oh, it's you who's taking over our office! You'll be glad to hear it now gets wifi signal, which wasn't the case last month

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In reply to @mathpunk

@mathpunk but if you're doing this by hand, can I suggest YAML instead of JSON: yaml.org/start.html

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In reply to @ColinTheMathmo

@ColinTheMathmo "a full roll" is probably an easier rule to explain, though, don't you think?

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In reply to @ColinTheMathmo

@ColinTheMathmo how interesting!

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there is a a cure for ebola! Booking my tickets to the Congo straight away.

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aaag wordpress! Restored everything in an autosave except the changed permalink

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Bad idea: normal users can't submit bug reports to Blackboard. Only administrators can. Maybe that's why there are still so many!

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SANDWICHZEIT BEGINNT JETZT! BRING MIR BROT! BRING MIR FLEISCH! BRING MIR KAESE!

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In reply to @Bishnavitch

@Bishnavitch we've still got a box of your brother's first edition miniatures somewhere

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have found a mega-bizarre @MathJax bug: calling $('*').find('anything') knacks MathJax spacing. Trying to boil down simplest exemplar now.

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In reply to @elinoroberts

@elinoroberts I've had the heating on all week.

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Trying to convince myself that even though the top and bottom halves of my leg are splitting up, it doesn't mean they don't both love me

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R plots can't or don't use LaTeX for labels. Rubbish.

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oh my god it has its own nutjob syntax: stuff.mit.edu/afs/sipb/proje… Is R the PHP of maths languages?

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Blew my mind: NASA has a page with the latest data received from Voyager voyager.jpl.nasa.gov/mission/weekly…

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Mum is preaching the gospel of this kipper she just ate at Irvine's on North Shields fish quay

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I think today is a day for Interesting Esoterica

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I basically can't stop playing this Mara Carlyle album

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she knows how to work a dental plosive to her advantage, is all I'm saying.

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man, you try and drop some phonetics and then you look on wikipedia and see you meant an alveolar plosive.

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I hereby resign my membership of the knows-good-words club

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cor, my aunty's photos of her resident giraffe falling in her swimming pool have got online and have 4 million views! imgur.com/a/T3YO1

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In reply to @Bishnavitch

@Bishnavitch well, it lives on her safari park. She showed us those photos last time she was over here.

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In reply to @Bishnavitch

@Bishnavitch yes, that's her, but she's in Tanzania now.

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to clarify: I'm not sure if my aunty took the photos, but they're from her safari park. She's also just a family friend, not a real aunty.

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In reply to @Rosalot

@Rosalot somewhere near Arusha in Tanzania. I've forgotten the name of the company she works for

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In reply to @elinoroberts

@elinoroberts can you do mine? I'm colourblind and only realised recently that you can buy socks with patterns on

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In reply to @elinoroberts

@elinoroberts one day, I'd like there to be a machine which will make up cotton socks with an arbitrary pattern on

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Dinner dilemma: fajitas (tastier) or caesar salad (less effort)?

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In reply to @Bishnavitch

@Bishnavitch oh, I'm sorry, is chicken and bacon, lathered in puréed anchovies, oil and parmesan not rich enough for you?

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In reply to @Bishnavitch

@Bishnavitch how about if I remove the lettuce?

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In reply to @Bishnavitch

@Bishnavitch pasta and cream is for girls and Italians

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In reply to @Bishnavitch

@Bishnavitch carbs are for people with insecurities. Lettuce is for men who just don't give a damn

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can't believe how many people are wrong about dinner choices.

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That is how you turn a game of Civilization around!

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The secret to my success: a firm policy of appeasing the Germans

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electrotelethermometer is the English word with the most Es in it (7)

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In reply to @mountain_ghosts

@jcoglan because Steve Jobs never installed a program that wasn't made by Apple

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A huggermuggering nonannouncement of an overinvolved knickknack, or an alliterationist's dream: checkmyworking.com/2012/06/a-hugg…

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In reply to @lizmallard

@lizmallard indeed! By the way, you're on the Newcastle mathsjam list, aren't you? Are you going to come on Tuesday?

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In reply to @lizmallard

@lizmallard then there are multiple mathematically-minded Liz Hansons!

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In reply to @lizmallard

@lizmallard well, she's on the list but she's never come!

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A round of applause for @peterrowlett, who took on the @aperiodical news queue and won.

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In reply to @Bishnavitch

@Bishnavitch I refuse to watch that episode now, in case 1) it makes me cry, or worse, 2) I become desensitised to it

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I'm hosting the Carnival of Maths this month, so please send in any good maths blogging you've seen: docs.google.com/spreadsheet/vi…

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In reply to @jgrahamc

@jgrahamc are you aware of the book Making Mathematics with Needlework? I've got it, it's very good amazon.co.uk/Making-Mathema…

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why do so many journal/scholarly literature sites make it so hard to find the link to go from an abstract to the full paper?

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In reply to @mountain_ghosts

@jcoglan well done keeping that hashtag alive

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A sequence with a simple elementary definition which only produces prime numbers oeis.org/A137613

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In reply to @standupmaths

@standupmaths replacing iphone screens is only to be attempted by teams of nanobots or infinitely patient monks. Not sure which Apple have.

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In reply to @standupmaths

@standupmaths and I think £60 probably won't buy you the bits for a new screen

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In reply to @haggismaths

@haggismaths ah, it might be too late! My princesses got hijacked by less serious mathematicians.

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In reply to @haggismaths

@haggismaths relatedly: are you aware of blackboardoftheday.com? Etienne Ghys told me about it when he visited last week

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In reply to @LeedsMathsJam

@LeedsMathsJam I'll have one at Newcastle, and I think @stecks will have one at Manchester. Prepare some secret messages!

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In reply to @mountain_ghosts

@jcoglan echh, no. And got a very busy week.

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In reply to @mountain_ghosts

@jcoglan where was your data?

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In reply to @ben_nuttall

@ben_nuttall @tgandrews what is Haskell doing in there with PROLOG and FORTRAN? This is an outrage!

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In reply to @haggismaths

@haggismaths waiting until tomorrow, when the student in control of the blackboard next to the white one has his viva and passes it on to me

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basically every ingredient in this pizza went off at least a week ago. It's OK once it's cooked though, right?

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also: jalapenos have antiseptic properties, don't they? Because I've just checked and those are in date.

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there's a lot more sadness in my life since I started playing minecraft on hardcore. Sitting wondering what I could have done to survive

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There's a Mongolian throat-singing rap album called Back Tuva Future. You can go to sleep now, today is over. youtube.com/watch?v=2uf1lE…

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In reply to @standupmaths

@standupmaths @Dr_Lucie you've got the entire McBain movie to look forward to: ebaumsworld.com/video/watch/81…

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Played the game and lost. It's tipping it down and I'm in just a t-shirt. Must check webcams before coming in to town from Tynemouth

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I have an HTML demo page for a project on Github Pages. What do I add to the YAML bit at the start to get syntax highlighting CSS?

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I've written a jQuery plugin that gives you an instant @MathJax preview of any LaTeX you write in input boxes: christianp.github.com/writemaths/

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In reply to @mathieuruellan

@mathieuruellan What do you mean?

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In reply to @pkrautz

@pkrautz I've just fixed a bug with IE. See if that was your problem too.

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just made a load of maths worked example videos with the legendary Prof Robin Johnson publicly available on vimeo vimeo.com/nclmaths/video…

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I'm going to be late for Newcastle @MathsJam due to a friend's overlong viva. At the very least, Sarah should be there from 7

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In reply to @mathieuruellan

@mathieuruellan but then you have to solve the reverse problem of turning screen coords into caret position.

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In reply to @jamesgrime

@jamesgrime @standupmaths @penguat @KSCMaths @MathsJam Grime Bice? That gives you a colour scheme, too.

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In reply to @elinoroberts

@elinoroberts @jjsanderson whatever you're doing: have you worked in a reference to the tidal effects on the LHC? That filled me with awe.

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I've made a wordpress plugin which applies my instant LaTeX preview thing to the comment box under posts. checkmyworking.com/2012/06/instan…

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I'm thinking of doing a piece for the @aperiodical on people's relationships with LaTeX. Do you have a horror story or moment of brilliance?

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I'm particularly interested in mathematicians who don't use LaTeX: what's your excuse, you heretics?

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In reply to @BoringVoid

@St_Sebas do you write maths often? If so, what do you use?

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In reply to @CardColm

@CardColm can you say a bit more about how it changed your life?

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In reply to @pkrautz

@pkrautz should do. Can you point me to a site with disqus comments?

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In reply to @pkrautz

@pkrautz no, just with disqus. Never mind, found one of mine!

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In reply to @danaernst

@danaernst @pkrautz @disqus should work straight away. Disqus just provides a textarea.

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In reply to @danaernst

@danaernst @pkrautz no, my plugin loads mathjax if it isn't already there. But you should be using Sam's plugin anyway.

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In reply to @pkrautz

@pkrautz @danaernst oh, disqus' textarea is inside an iframe, so I need to add a line to my plugin.

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie @HeyCwiss is it any good?

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In reply to @danaernst

@danaernst @pkrautz github.com/christianp/wp-…. Wait a mo while I make it work with disqus though. (unexpectedly complicated!)

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In reply to @danaernst

@danaernst unzip in your wp-content/plugins directory. Activate in the admin plugins page.

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie @HeyCwiss your excellent argument has convinced me. Yours at 7.30?

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In reply to @danaernst

@danaernst @pkrautz @disqus revising my earlier opinion: I can't do anything with disqus because of cross-site scripting restrictions

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sitting in a hot office waiting for windows to finish unzipping a 500kb file. Truly these are my salad days.

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"no, the other 90 degrees!" isn't quite as bad as "no, the other left!", but it's close.

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In reply to @Bishnavitch

@Bishnavitch Britain's most successful hoover comedian

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In reply to @Bishnavitch

@Bishnavitch by which I mean two things: 1) Henry is a brand of vacuum cleaner. 2) Lenny Henry sucks.

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In reply to @EliotBall

@EliotBall thanks!

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In reply to @alnelson_writes

@MuseGarden @Nathan1123 pronounced "secky"?

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Another LaTeX question: is there a package that you use but nobody else does? What does it do?

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Thanks to @plusmathsorg for these rather fetching mathematical card holders. Wasn't expecting 3!

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@disqushelp yeah, I'm running chrome. Trying jQuery selector $('.dsq-textarea-wrapper').find('iframe').contents()

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@ma1cal when does the teaching take place? A compulsory module?

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In reply to @ColinTheMathmo

@ColinTheMathmo MiKTeX on windows, I assume?

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In reply to @mountain_ghosts

@jcoglan challenge: arrange your finances so that your tax bill is a solution to a 3-SAT problem encoded in your annual earnings

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jcoglan can you get your base-whatever hash test data in a plain text file of the form <bits>\n<base>\n<output>?

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lunch and then I battle the Stupid Bug Mountain.

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In reply to @mountain_ghosts

@jcoglan commas, spaces, whatever.

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In reply to @mountain_ghosts

@jcoglan my results.txt is now in the same format, at gist.github.com/2911970. We differ, and I'm pretty sure the error is with you

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In reply to @mountain_ghosts

@jcoglan in base 10, we agree until the subsequence (...,9,8,9,5,3,1,0), and you have an extra digit in your output

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In reply to @mountain_ghosts

@jcoglan sorting this out might be better over IM of some sort

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In reply to @mountain_ghosts

@jcoglan ok, just added you

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In reply to @pkrautz

@pkrautz @aperiodical (answering as myself now) I think I might have seen it before. More grant money being ineffectively spent!

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In reply to @pkrautz

@pkrautz funded by Munich Re, so at least it isn't EU money

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In reply to @jgrahamc

@jgrahamc you need more than two data points to conjecture exponential growth

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has anyone ever seen IE run an object's constructor function before attaching its prototype? Because I think that just happened to me.

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In reply to @Bishnavitch

@Bishnavitch wolframalpha.com/input/?i=calor…

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In reply to @Samuel_Hansen

@Samuel_Hansen I can't see what that's a reply to, but if it's about the carnival of maths: you're submitting to me, so send in loads

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In reply to @haggismaths

@haggismaths oh, you know there's been a paper on that ncbi.nlm.nih.gov/pmc/articles/P…

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In reply to @ColinTheMathmo

@ColinTheMathmo man, you have so much more trouble with computers than I do. Did you do something to offend them?

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It's Turingsmas Eve! Remember to put your programs on the mantelpiece tonight, and maybe tomorrow morning you'll wake up to a proof it halts

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Remember to leave out a pad of paper and a pen for Alan, and a pile of punch cards for his team of hunky computer operators

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In reply to @PumphreysMath

@PumphreysMaths mathscard looked decent when I tried it: play.google.com/store/apps/det…

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In reply to @PumphreysMath

@PumphreysMaths and wolfram alpha is, of course, excellent

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In reply to @Electrokittie

@Electrokittie really? youtube.com/watch?v=IK2cfd…

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am I to understand that it's raining in less excellent parts of the country? I'm going out for a walk on the beach

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And lo, did the Lord God see cp's braggadocio and verily did He send forth innumerable drizzles

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In reply to @icecolbeveridge

@icecolbeveridge what was the other one?

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In reply to @icecolbeveridge

@icecolbeveridge but there've been plenty of big real maths stories: Agol's Virtual Haken proof, Goldbach progress, potential ABC proof...

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how odd: @standupmaths's radio 4 documentary on Turing is still on iplayer, but can't be found using the search.

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In reply to @icecolbeveridge

@icecolbeveridge there really wouldn't be much point in the mainstream press reporting those stories.

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In reply to @icecolbeveridge

@icecolbeveridge I disagree completely.

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two games of Risk and *then* writing our big Turing post was never a good plan. Moody's has just downgraded it to a Very Bad Plan Indeed

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I've collected together some of the best Turing coverage for the @aperiodical at aperiodical.com/2012/06/turing….

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what's the easiest way to run a node.js server on a server that uses Apache? Modern app-deployment techniques baffle me

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Looking forward to the river of fire along the Thames tonight. A great way to celebrate Turing's centenary and it's never been done before.

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In reply to @treasa

@treasa just spent 10 minutes not finding the clip on youtube. I'm sure it used to be there. Anyway, it's an old joke from Broken News

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just went round the google sign-in loop four times with my mum on @TripIt. She's given up trying to register.

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Looking at the @aperiodical's stats, it seems Shouryya Ray is twice as popular as Alan Turing. Disheartening.

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In reply to @standupmaths

@standupmaths EXCELLENT. Have you seen the description of railway junction logic gates? I saw it when I was 17 but can't remember the author

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In reply to @standupmaths

@standupmaths if you can make use of someone in the Far North East, I'm in.

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In reply to @standupmaths

@standupmaths not emailing because a) I'm too cool for school and b) I have a woman on the inside of your operation, Parker.

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In reply to @ben_nuttall

@ben_nuttall you must be really mad that Prince William uses that title despite not having been awarded it by the Roman Emperor

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In reply to @standupmaths

@standupmaths my PhD is in computability and exactly this kind of thing, so I can help with design

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In reply to @goddent83

@goddent83 I think it was two Cambridge postgrads, circa 2003/4, reported in a paper but not sure which. Junction boxes work as logic gates

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In reply to @goddent83

@goddent83 I have googled long and hard and turned up nothing but people making external, electronic, logic gates for model railways.

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In reply to @outofthenorm2

@outofthenorm2 @goddent83 @standupmaths that is precisely it! Thank you!

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In reply to @HilariousCow

@HilariousCow already done: Prince of Persia refusing to walk off ledges.

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In reply to @HilariousCow

@HilariousCow unlike walking into walls, where the character has no mind of his own, in PoP he's visibly struggling against your command

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In reply to @HilariousCow

@HilariousCow for a while I've wanted a platformer where "your" actions don't need to be coherently displayed (transition animations etc)...

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In reply to @HilariousCow

@HilariousCow ... but the character follows a tiny bit behind, properly animated because the game knows in advance what it's going to do

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In reply to @HilariousCow

@HilariousCow yeah. You've got to fiddle things so the character never gets affected by something you don't, breaking the illusion.

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In reply to @HilariousCow

@HilariousCow a single-agent Portal-ish environment would do, with you playing the character's "mind's eye"

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In reply to @HilariousCow

@HilariousCow yes! Got to make that now!

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None of the doors in the student union make sense. There's every combination of handle/button/automatic/signage.

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In reply to @peterrowlett

@peterrowlett oh dear! Is that the teaching, or something like what you've done this year?

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Wearing my "maths is easy" t-shirt to an interdepartmental meeting.

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In reply to @alisonkiddle

@ajk_44 thats some serious chutzpah on the part of the Tories, trying to reuse the phrase "back to basics"

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crikey o'reilly this is some needlessly cryptic code

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"I've just discovered multiline var declarations and lazy evaluation of booleans. Let's write my entire program and logic in one of those!"

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In reply to @standupmaths

@standupmaths is the quiet coach not the naughty coach? People complaining about bad passengers are hardly ever not in the quiet coach.

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"lion" is the only English word ending in -ion which is still a word when you swap the I and O.

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emusic, why does the "your session has expired so you need to log in" page now redirect to the signup page? That's enormously annoying!

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In reply to @IanMulvany

@IanMulvany I have a hashtag I use on occasions like that: #unhelpfulneckbeardadvice

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In reply to @aperfect

@aperfect my name is extremely common in Catholic countries, particularly the Philippines. I win.

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In reply to @Sdfahey

@Sdfahey @mathsinthecity only one face? Which one? Anyway, I'd just say it's a twisted prism: korthalsaltes.com/cuadros.php?ty…

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In reply to @Sdfahey

@Sdfahey no, it isn't an antiprism because the sides aren't flat faces - they're curved.

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In reply to @Sdfahey

@Sdfahey actually, just looked at your picture again and they are. Whoops!

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Publishing minified code without a source map is pretty unhelpful.

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In reply to @dmh10

@dmh10 sadly not. Anyway, my brilliant mental deobfuscation skills have allowed me to find the corresponding point in the source

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In reply to @FOTSN

@FOTSN at my phone's highest volume I can barely hear the podcast. Could you sacrifice some of your glorious hi fidelity and enlouden it?

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Twitteraticians: how do you write $\mathbb{Z}$? I've been told I don't follow convention.

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follow-up question: how about $\mathbb{N}$? Rotate previous pic 90° anti-clockwise for mine v apparently conventional styles.

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In reply to @peterrowlett

@peterrowlett @standupmaths hearing that the weather's better somewhere else is one of those little things that make life less bearable

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In reply to @aPaulTaylor

@aPaulTaylor that's a mega-tenuous reason! My reason is that it can't be mistaken for a really badly drawn mathematical X

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The first crazy person outs himself RT @panlepan: I'm crazy! RT @christianp: how do you write $\mathbb{Z}$? po.st/zeIiLb

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@Talithin @Samuel_Hansen zeds should always have a line through them!

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In reply to @Samuel_Hansen

@Samuel_Hansen @Talithin I used to think it was Continental Frippery until I started actually writing maths for a living.

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In reply to @panlepan

@panlepan alors, il faut que vous demandiez á vos collègues comment ils l'écrivent (how's my French?)

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we have patient no. 2 for the Z Madness. There must be more: I know you're out there, you loons!

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In reply to @ProfNoodlearms

@ProfNoodlearms do you see Serious People write the other version very often? (ps when did you change your twitter name? It's excellent)

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@Talithin so your second stroke is a single line?

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@Talithin it actually looks decent.

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does anyone else do it this way? RT @Talithin: @christianp By the way, here's mine dropbox.com/s/dw4buzbsolpa…

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In reply to @jgrahamc

@jgrahamc I now want to book a ticket from Poole to Bagshot.

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In reply to @MouldS

@MouldS you've assumed that very few of the people who look like you are ticket inspectors. This notice is dispelling that notion.

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TIL that Chebyshev's (he of the inequality) first name was Pafnuty.

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In reply to @transponderings

@axnicho @peterrowlett is this a pun I see before me?

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managed to maximise my savings inefficiency at Sainsbury's: every item I bought is part of a multibuy offer, but no two are in the same one

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In reply to @mountain_ghosts

@jcoglan I thought ahead and used the self-service

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like voting for the Greens, while it was against my immediate self-interest, I made the statistics register the way I want the world to be

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In reply to @Samuel_Hansen

@Samuel_Hansen football! I forgot about the football! O WOE!

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not on my nelly bot on my belly dot on my delhi jot on my jelly pot on my pele tot on my telly what on my welly #isthatallofthem

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Going on holiday on Friday, leaving these beauties sitting in the queue at the @aperiodical:

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In reply to @MarcusduSautoy

@MarcusduSautoy this is relevant to my interests

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I believe I am owed some presents. RT @MarcusduSautoy: Happy Perfect Day! 28/6 A number is perfect if it is the sum of its proper divisors.

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In reply to @mountain_ghosts

@jcoglan only module needed: a Turing machine which can simulate all other modules. #unhelpfulneckbeardadvice

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In reply to @helenarney

@helenarney ahh, I would go if I wasn't setting off on holiday early tomorrow morning

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this is a happy little integer sequence: undulating palindromic primes oeis.org/A059758

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..which has led me to this magnum opus - primes.utm.edu/lists/top_ten/… - more top ten lists than you can shake a cracked.com at!

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In reply to @aPaulTaylor

@aPaulTaylor no - undulating primes are at oeis.org/A032758 - includes two-digit non-palindromes

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@seanhandley Pancho Villa's on the Royal Mile is excellent panchovillas.co.uk

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9876543210 followed by 2002 zeroes and then a 1 is prime

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In reply to @aPaulTaylor

@aPaulTaylor now I'm trying to think how to find the most needlessly complicated OEIS definition

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just watched a fly spontaneously generate on my wall. Aristotle was right! (or the fly was hiding)

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Problem: one could avoid the hateful facebook->guardian login thing by copying and googling the title. Solution: forbid selecting text

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED no, I'm going to dissolve! I'd hoped to observe you humans a while longer but now I must return to alka-seltzer-man home planet

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I picked a bad day to renounce all gods

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In reply to @pkrautz

@pkrautz @peterrowlett @stecks I know a bit. Email me.

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In reply to @mathsinthecity

@mathsinthecity I managed to get out just before too many roads closed. My seaside abode is untroubled by mere rain! Thanks for asking

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In reply to @mathsinthecity

@mathsinthecity no, I live at Tynemouth but today I'm setting off for the Loire valley for my jollies

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A glacier would reverse into that space faster. And it wouldn't come out to straighten up three times either.

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In reply to @mathsinthecity

@mathsinthecity the council has done a brilliant job up here but I'm hearing bad things about the Midlands. But that's nothing new, right?

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In reply to @ehauke

@ehauke htc desire hd played through sennheiser mm100 headphones. It's lots quieter than other podcasts.

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In reply to @Samuel_Hansen

@Samuel_Hansen a follow on google+ has about as much value as a turkish lira

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In reply to @Samuel_Hansen

@Samuel_Hansen wow, I picked the wrong kind of lira. Let's go with Italian lira

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In reply to @ehauke

@ehauke all the episodes have been the same

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Gosh, the new google+ app is good! I'm still tweeting this thought though.

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Slough: it's not worth the effort

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Not sure how I feel about this video tribute to Turing youtube.com/watch?v=RIUash…

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In reply to @ipnosimmia

@ipnosimmia the backing music's a bit weird

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July

I have internet! Here's a picture of some fabulous French cuisine. We have so much to learn from them.

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In reply to @monsoon0

@monsoon0 have you seen checkmyworking.com/2012/01/how-to… ? Or do you want to use textmode LaTeX too?

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Il fait chaud, fo' sho'.

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Me and four bishops in a nissan micra, driving France's autoroutes and reviewing the service stations. Title of the book: Aires and Graces

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Koala! Happy day!

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And if you want to see a panda, don't even bother going to Edinburgh: come to Beauval, you can get right up to them

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SPACE BABY

1 favourite 3 retweets

In reply to @manytypesoftea

@manytypesoftea yes, we can only assume it's an accurate translation given the picture. Excellent twitter avatar, by the way

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In reply to @MEIMaths

@MEIMaths @peterrowlett it's in the queue for my next open access round up. Could well merit its own post, though.

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In reply to @Andrew_Taylor

@Andrew_Taylor well, you've _got_ to register comicsines.com and fill it with comic sans maths now.

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In reply to @alexbellos

@alexbellos @haggismaths looks like autocorrect has got the right ideas

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In reply to @mountain_ghosts

@jcoglan Turing would be all about the #unhelpfulneckbeardadvice.

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Goodbye, France! No thanks to DFDS Seaways, who were an hour late out of port. Watched three P&O ones come and go while we waited.

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In reply to @stecks

@stecks yes, δmaths/δt (britain,now) > 0

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In reply to @stecks

@stecks and I will be gratified if you notice my correct identification of a partial differential

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In reply to @standupmaths

@standupmaths Matt's Unvirtual Mersenne Prime Search, or #MUMPS

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In reply to @standupmaths

@standupmaths and I've just noticed your twitter username is a pun on your real name when pronounced in a French accent. A reason to move?

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Almost everyone on this ferry is reading the Daily Mail. Hypocrites.

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Forget meditation, if you want to get in harmony with the world around you just do a wee on a boat. (Men and adventurous ladies only)

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it's the world's funniest child! youtube.com/watch?v=Zt1jkZ…

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Now I can be like @standupmaths and tweet maths symbols ∵ ∃ a character map app for android! play.google.com/store/apps/det…

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...but they aren't displayed properly on my PC. Willy poo bums.

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.@univofstandrews did you check with Dr Nacenta before writing that tweet? Pie charts represent proportion; "Fatfonts" show arrays of data

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where do I sign up to kick the people who wrote TinyMCE? I assume there's already a list.

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In reply to @helenarney

@helenarney @djfbus @standupmaths @FOTSN I made a video a while ago explaining what's going on in that picture: aperiodical.com/2012/05/torus/

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One for all and all for 0! #mathspuns

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Looks like the metal pushing pad on this door isn't at the right height for anybody else either

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if you want a poster of a famous mathematician and don't have working colour vision, this is the site for you! mathematicianspictures.com/Posters%20&%20…

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett just listened to m/ms 104. Re economic centre of gravity: how do you average points on a sphere?

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hahahahahahahaha youtube.com/watch?v=rZLfXF…

1 favourite 1 retweet

In reply to @standupmaths

@standupmaths similarly: the University of Derby Discarded Learning Centre flickr.com/photos/christi…

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durham.ac.uk doesn't work. durham.ac.uk does. When Oxford was a waste and Cambridge a bog... Durham set up their DNS.

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and hilariously, twitter shortens them both to just durham.ac.uk

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen I've just read the appendix of the report. It's exactly as rigorous as you'd expect.

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misleading infographic news, now: digicert.com/TimeTravel/

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reaction-diffusion whiz-boffins: please make some stripy paint.

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is there a good reason javascript's ternary if assignment goes `b?x:y` instead of something readable like `x if b else y`?

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@Nathan1123 yes yes, I get that, but all I did in my better version (python's) was replace the symbols with words

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@Nathan1123 oh hang on, I thought that's what I did but I switched b and x. Whoops.

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@Nathan1123 I think what I originally wanted was something like `if(b) x else y` as an acceptable expression in an assignment

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In reply to @icecolbeveridge

@icecolbeveridge yes, that's what I was getting at. Quite annoying!

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is Ohio the international twitter spam nexus or am I just very popular with people from middling states?

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can someone with working colour vision, either skype or gtalk, and 10 minutes to spare help me with a colour scheme please?

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Dear Microsoft Word, Thank you so much for noticing how wide my screen is, but I don't actually want you to zoom in so the page fills it.

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while I'm pretending to write letters: Dear VMWare, Why does your one-click unsubscribe link go to a page I need to click on two more times?

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I don't tweet boring work things much, but the PENS import by @SCORMCloud is amazing!

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In reply to @JanvierUK

@JanvierUK that's pretty close to your height as well, isn't it? #everyoneistinytome

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I wish right guard would stop changing the names of their deodorants. What's the big idea?

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I've said "what rot" so many times in the last 10 minutes browsing this conference's programme that the words have lost all meaning

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In reply to @stecks

@stecks I demand less boring tweets! Or fewer boring tweets!

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In reply to @stecks

@stecks @diffractionman I am. Why?

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In reply to @stecks

@stecks yes, I'll do a talk on something, probably princess/castle. Definitely do aperiodical something. Hosting slides is a good idea.

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In reply to @stecks

@stecks though really, mathsjam.com should be doing that.

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In reply to @stecks

@stecks I worry with the big mathsjam that Colin wants it to be a private party and reporting from it might ruin it a bit.

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In reply to @Electrokittie

@Electrokittie you just apply directly to the institution

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In reply to @HilariousCow

@HilariousCow manicheanima.

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In reply to @HilariousCow

@HilariousCow a portmanteau of manicheanism and machinima?

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In reply to @HilariousCow

@HilariousCow it describes basically Peter Molyneux's entire oeuvre

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The screen reader JAWS costs $895. Because blind people get the same grants as people who need, like, new doorways built for them.

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which makes it hard for me to test, since I don't know any blind people, and don't have $895 lying around to enrich a profiteer with.

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In reply to @mountain_ghosts

@jcoglan so do I fill my HD with noise to make a point, or with "all work and no play makes Jack a dull boy" so it doesn't look random?

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AAAAA I only work part-time that is too many issues AAAAAA

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I have an almost uncontrollable urge to write a story about the Mormon grammarian P. Dan Tick

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apparently Newcastle University has 4321 postgrads. That's a nice number!

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In reply to @brittneybean

@brittneybean I wouldn't be surprised if you said you were visiting a walmart that had an army base.

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In reply to @miclugo

@madcaptenor you're mistaken. These enlightened individuals are correcting their wicked foreign ways.

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@nulibsage I look at my diary for next week. It is a vast empty nothingness. Except for that exact hour. Typical.

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In reply to @mendeley_com

@mendeley_com what's the point of attaching files to my library if it always says "we don't have permission to make this file downloadable"?

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In reply to @mountain_ghosts

@jcoglan just add more classes and rules, then freely-reduce the resulting inheritance tree. #unhelpfulneckbeardadvice

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In reply to @mountain_ghosts

@jcoglan sorry, I meant directed acyclic graph, not tree. Because that would be too simple.

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there is a layer of bacon-smelling air about three feet off the floor of my flat. Dare I follow it to its source?

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@Nathan1123 a bad programmer would just hack over it until it looks like it works. You're on the right track

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deleted the blitzbasic forums from my bookmarks. There's hardly ever anything interesting there any more

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It's finally here! After literally a quarter of a year, here's a load more interesting maths esoterica aperiodical.com/2012/07/intere…

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In reply to @ColinTheMathmo

@ColinTheMathmo I asked Katie but she's AWOL, so: do you have a picture of last year's MathsJam we can use for an @aperiodical post?

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Can't think of a single good reason why Smash wasn't instead called Packet Jotato.

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In reply to @HoeJodgkiss

@HoeJodgkiss the aristocrats!

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In reply to @stecks

@stecks it isn't great - Colin's all blurred. I'll ask on the @MathsJam twitter

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has anyone got a photo of last year's @MathsJam conference that they wouldn't mind being used in a post on the @aperiodical?

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In reply to @stecks

@stecks oui

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In reply to @peterrowlett

@peterrowlett yep, it can go whenever.

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the Irish one from My Life In Film is in everything now. Must have got a better agent.

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was Dead Boss given that weird inappropriate piano theme tune just because it was written by women?

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or, if the writers specifically asked for that theme: what were you thinking?

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It's a lovely sunny day in Tynemouth! Is anyone else out here enjoying the festival?

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In reply to @peterrowlett

@peterrowlett it went OK, then? No bugs?

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In reply to @peterrowlett

@peterrowlett hah! Excellent.

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In reply to @acmescience

@acmescience much better!

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In reply to @ben_nuttall

@ben_nuttall @stecks @aPaulTaylor that's more of a combinatorics and designs problem, surely

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TIL that facebook thinks Newcastle University is in New Delhi facebook.com/pages/Newcastl…

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In reply to @alexbellos

@alexbellos why's it only got one number? You could do that to a normal die. The joke with a mobius one is you can't decide which face is up

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In reply to @Calibrand

@Calibrand do you actually, though? The sentiment is cheapened by your tweet history. I'm now going to make an effort to avoid you.

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11:11!

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mathematicians: does anyone else find the misuse of "hence" in a proof really annoying?

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In reply to @aPaulTaylor

@aPaulTaylor I think you mean "no, hence now I am paranoid that..."

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In reply to @peterrowlett

@peterrowlett I think we need to submit it to be reviewed by a person. There's a link somewhere in the webmaster tools

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duoliteral, juloidea, muroidea, muscoidea, pulmonifera, quodlibetal, subcontinental, subhyoidean, uncomplimentary, uncontinental

1 favourite 3 retweets

.@WWMGT @stevenstrogatz @Wrangler314 see my previous tweet for all words I could find with vowels in reverse order. Excluded "unnoticeably".

1 favourite 2 retweets

also "fulgoroidea" and "uncoincidental" if you allow repeats of vowels.

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can't find any words with all vowels + Y in forwards or reverse order. Another reason Y is not a vowel

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Omg, just realised Tynemouth Sainsbury's is in walking distance. #sixandtwotwelves

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In reply to @CardColm

@CardColm gosh! My word list must be missing a lot of words

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In reply to @CardColm

@CardColm oh hang on, that's in forwards order. Panic over!

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In reply to @CardColm

@CardColm ah! I see now. Currently walking to the shops so can't check my sums

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Ok, further corrections will be ignored unless told facetiously. Clearly I made an error

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And that shortcut was more like a six v two 3.1s. My brainwaves are a bubbly froth. Time for dinner.

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ok, regexp fixed. adventitiously and pareciously

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the usefulness of useless knowledge library.ias.edu/files/Usefulne… cc @peterrowlett

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I thank @Samuel_Hansen from the bottom of my heart for introducing me to my new religion youtube.com/watch?v=9bZkp7…

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In reply to @Tony_Mann

@Tony_Mann you're wrong, @peterrowlett has always been at war with Eastasia

1 favourite 1 retweet

well punned! Radius of the Lost Arc - a maths game for kids chrome.google.com/webstore/detai…

0 favourites 2 retweets

Is this white fiat 500 doing really quick laps of the village or does everyone own a white fiat 500 now?

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How long do you think I can mingle with the World Congress of Accounting Historians? I need some fun accounting history facts

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#accountinghistory "double book-keeping" was originally a euphemism for workplace drunkenness.

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#accountinghistory in the Crimean war, the Battle of Balaclava was written off as a clothing expense

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In reply to @Bishnavitch

@Bishnavitch I'd have to see Dark Knight between now and then

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22:22!

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In reply to @rmehigan

@rmehigan and sadly the last in my series of monodigital time tweets for today

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In reply to @rmehigan

@rmehigan I did not. No Sky!

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In reply to @Andrew_Taylor

@Andrew_Taylor to do exactly that and no more, add these to your path gist.github.com/3132399

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In reply to @Andrew_Taylor

@Andrew_Taylor or you could do it properly on Linux with adventure shell: nadvsh.sourceforge.net

1 favourite 0 retweets

Just attended a workshop where I did a SWOT! I've become you!

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Oh no. For the first time ever, I tweeted what was meant to be a text. It was a long workshop.

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In reply to @pkrautz

@pkrautz I think not: cross-site scripting problems.

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In reply to @pkrautz

@pkrautz a chrome extension would probably be able to do it

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In reply to @elinoroberts

@elinoroberts write it underneath the header "Things for other people to do"

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In reply to @standupmaths

@standupmaths @numberphile neilsloane.com/doc/g4g7.pdf or primes.utm.edu/lists/top_ten/… might give you some ideas

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In reply to @mountain_ghosts

@jcoglan no votes for 'look around'? Dangerously risky behaviour from the go-northers

2 favourites 0 retweets

Descending into the pits of the @aperiodical post queue to hew some maths news from the living rock. Got my undecidability canary with me.

0 favourites 1 retweet

In reply to @mountain_ghosts

@jcoglan score

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In reply to @icecolbeveridge

@icecolbeveridge well, that's an idea for a new twitter bot. Sadly, @undecidabilitycanary is too long to be a twitter username

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today's programming challenge: write a prime number generator in Hindi hindawi.in/en_US/faq.php

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In reply to @peterrowlett

@peterrowlett you said you had some big mathsjam photos. Prod.

0 favourites 0 retweets

In reply to @TeXtip

@TeXtip or, with MathJax magic, you can use one I made: checkmyworking.com/misc/makebigma…^{i%20\pi}+1=0

0 favourites 1 retweet

In reply to @outofthenorm2

@outofthenorm2 argg, I was looking for a tweet about your new post and misread "blogpast" as "blogpost"! Bumbleshpitz

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In reply to @outofthenorm2

@outofthenorm2 we considered "blogpast" for the Aperiodical's tweets and rejected it for exactly that reason

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living the rugged independent lifestyle of a Solo Dude is a nightmare from a home economics perspective.

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maths fact: over the past two years, Cedric Villani has spent as long as three hours not in front of a camera

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In reply to @EliotBall

@EliotBall haha, that's crazy! Unregistered domains go to a page saying "DNS Error!"

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rhinoeceros, assemble! imgur.com/gallery/ErYL2

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very very clever: computer-generated pareidolia using genetic algorithms and face detection iobound.com/pareidoloop/

3 favourites 7 retweets

guess who just tweeted from the wrong account! That guy! (Also this guy)

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In reply to @plusmathsorg

@plusmathsorg @mathsinthecity I tried the "best not to collapse it into an observable state just yet" excuse with my thesis

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In reply to @Bishnavitch

@Bishnavitch no thanks. Unenthused.

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pretty bummed that numbas.com seems to be a site selling English lessons in Japanese

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In reply to @mountain_ghosts

@jcoglan is it possible to just cover one's ears and hum until ECMAScript 6 is widespread?

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chrome, you are using 200mb of memory with one blank tab open. Explain yourself.

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the manufacturers of this chilli have rated it "HOT HOT HOT". Maybe if you were raised on an exclusive diet of milk and yoghurt. Weak.

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a more accurate label would be: "This sauce was produced in a factory where chillies are handled"

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it has the consistency of puppy sick. I think this'll be the end of bad chilli news.

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oh no I discovered the programmable turtle in tekkit

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At least be consistent, guy's! (excellent farm, though)

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In reply to @standupmaths

@standupmaths good decision: "standupengineering" is pretty much a tautology. And are you implying you're under-employed?

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In reply to @mountain_ghosts

@jcoglan I use the cursor keys all the time. Because sometimes neckbeards are just wrong.

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my little brother hasn't even been to Akbar's. It's like I don't know him any more.

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oh my god Wrong Sign Language is the BEST game

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In reply to @arowx

@arowx @GreyAlien you are correct to disclaim those claims. If you're coming this far up, might as well go across the Tyne to a REAL place.

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In reply to @GreyAlien

@GreyAlien @arowx yeah fine, keep believing that. Just going out for a stroll on the award-winning beach, back later

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windows is saving an 8mb bitmap version of my wallpaper to my uni network profile. That'd be fine if I didn't have a tiny allowance of 60mb

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In reply to @sxpmaths

@sxpmaths as far as I know, @TraineeGeek organises the Portsmouth MathsJam. She's friendly!

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In reply to @sxpmaths

@sxpmaths I think you might be talking about what I called the "worst series in the world" - near the bottom of checkmyworking.com/2012/02/newcas…

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wanted: rich benefactor to fund the acquisition of this fantastic kitchen appliance tesco.com/direct/k-mix-b…

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In reply to @stecks

@stecks I would be entirely happy with being a trophy husband who stays at home and bakes with expensive Kenwood appliances all day

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In reply to @stecks

@stecks but I don't think I'm up for the silicone pec implants trophy husbandship would entail

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In reply to @benjamintormey

@BenTormey you're following the wrong women, dude

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In reply to @stecks

@stecks wow, A had almost completely passed from my memory.

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In reply to @amazingradio

@amazingradio re chilli dogs: the diner in Fenwick's does a mean chilli dog

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Newcastle @MathsJam is tomorrow, 7.30pm in the Charles Grey pub. New people very welcome.

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Oh good, someone's realised the Olympic Security Sand outside the stadium shouldn't block access to the metro station

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett I had the MAA link for flatland 2! Did I forget to use it? Bums.

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In reply to @peterrowlett

@peterrowlett yes, I just put it in

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In reply to @peterrowlett

@peterrowlett the most I'll commit to is that at least occasionally @Samuel_Hansen tells the truth

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it's far too late for the seagulls to be up and about. Can they even see where they're going?

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watch my brilliantly-edited holiday video, featuring lots of animals youtube.com/watch?v=D2-B-X…

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In reply to @Samuel_Hansen

@Samuel_Hansen I see your inappropriate twitter comments kickstarter was funded

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In reply to @Samuel_Hansen

@Samuel_Hansen and also, other twitterists inform me she was gay, so, probably wasn't gonna happen, buddy

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In reply to @brittneybean

@brittneybean after verifying my email on songdrop and logging in, I got a 404 for /info/dropitbtn&verify=success?cb=1343115078

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so does Pearson own the concept of education now? Is there anything they haven't bought?

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if I'm responsible for making sure the companies I buy services from pay their tax, I'd better cancel my vodafone subscription

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@nulibsage you'll get that tweet right eventually!

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In reply to @FOTSN

@FOTSN challenge: explain to an innumerate friend how big a pizza with twice as much meat would have to be while driving in a one-way system

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In reply to @stecks

@stecks we have a problem for tonight: pub has no wifi!

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In reply to @stecks

@stecks that might actually be more authentic

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In reply to @mountain_ghosts

@jcoglan I have that all the time with algebraic data types and any language that isn't haskell

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not sure what madness caused me to say MathsJam starts at 7.30. It starts at 7. Maybe I'll be alone for half an hour.

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In reply to @MathsJam

@MathsJam NCL->MAN we're having trouble decoding your message

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In reply to @outofthenorm2

@outofthenorm2 @MathsJam yes, and it's not a bad game. A good mental workout

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In reply to @FOTSN

@FOTSN for the safety of my fellow road-users, I did not account for crusts. Or the fact no pizza technician distributes toppings uniformly.

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In reply to @FOTSN

@FOTSN stuffed crusts introduce another problem - they only accrete linearly with pizza size.

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Sportsmen: teammates congratulating you in unwelcome places? Try Matt Parker's Pat Marker. New from Spooner, the Contrivance Company.

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In reply to @mountain_ghosts

@jcoglan do any of the JS module frameworks have relative import paths and namespacing? Or an equivalent of python's `import module as x`?

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In reply to @mountain_ghosts

@jcoglan yes, just looking at the docs now. So the global state you're complaining about is just in naming dependencies?

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pretty stoked about how much of my CPU this set of slides is using. Stopping my other programs running means it gets my full attention!

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In reply to @mountain_ghosts

@jcoglan is there any need for global module names? Why not make every `define` anonymous?

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In reply to @mountain_ghosts

@jcoglan I assumed that if you require 'sub/mod', then anything required by `sub/mod.js` would be found relative to `sub/`. Apparently not!

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In reply to @mountain_ghosts

@jcoglan here you go: gist.github.com/3176512 I'm sure it must be possible. It's mad otherwise.

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In reply to @mountain_ghosts

@jcoglan ah, I didn't try ./ ! Makes sense.

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In reply to @daveinstpaul

@daveinstpaul @MathsJam what do you mean by "level"?

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In reply to @daveinstpaul

@daveinstpaul @MathsJam oh never mind, got it now. Good. I thought there'd be a simple solution like that.

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In reply to @acmescience

@acmescience I see your site. Dude's probably got malware

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oh lovely, I just noticed someone's written a nice blog post about my rambling fibonacci grids video: andysunknownquantity.blogspot.co.uk/2012/06/thinki…

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well, that was uncomfortable. Followed a women home down a darkened street. Turns out she's my next door neighbour.

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In reply to @GeoffBath

@GeoffBath @ColinTheMathmo hence the mathketeers' rallying cry, "one for all and all for 0!"

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In reply to @daveinstpaul

@daveinstpaul very nice!

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VEXED IS BACK ON TELLY NEXT WEDNESDAY!! YESSSSSSSSS

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I can basically inhale a mcdonalds burger. Watching my Nana eat one is like water torture.

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In reply to @plusmathsorg

@plusmathsorg it can lead to many an odd phenomenon DOO DOO DE DOO DOO

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one day I expect to hear Pearson have bought the times tables. We got a spam at the @aperiodical from a subsidiary offering "maths links"

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the first email didn't identify them as from TutorVista (owned by Pearson), but the reply to my email saying "no thanks, I'm not stupid" did

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The @aperiodical is listed on google! Finally! cc @peterrowlett @stecks

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In reply to @miclugo

@madcaptenor it's **. There might be a good reason for that, but there probably isn't.

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"as" as a synonym for "because" - pro or con? I'm as con as the conceptual condominium congress of Conrad Black and Martha Stewart

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dude just walked past my house with the blingest zimmer frame I've ever seen. Actually, he's still walking past my house.

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Dear Jim, Can you fix it for me so my javascript fails in even crazier ways than normal? phpjs.hertzen.com

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two hours ago, I had a really clear idea of what I was going to cook for dinner. Now, nothing. Might starve.

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What the actual what.

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The only Nelson I want to hear from tonight has one arm and an unbeaten record against the French.

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Trevor Nelson hasn't once looked at the right camera during this whole ceremony. Old habits die hard.

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You've noticed there are no boys carrying those petal things. Well, mcdonalds picked them, and they delegated to their cattle farmers

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In reply to @mountain_ghosts

@jcoglan oh I forgot about Muse. THANKS A LOT JAMES

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Who gardens in a blue shirt and chinos? My mum's gardeners, apparently.

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Ah, Teesside. Putting the rough in Middlesbrough.

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Rocking my pac a mac in a sac at Stockton

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I'll put a snapshot of Stockton's infinity bridge on @mathsinthecity later. It's a nice bridge!

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An octagonal church in Yarm...

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...sadly, no amount of enthusiasm for octagons can make them tile the plane, so they had to make do with hexagons

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Back in Stockton, where the bus shelters haven't had new adverts put up since the release of "Lesbian Vampire Killers"

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In reply to @Gelada

@Gelada they're methodists. I think they'd frown on that sort of thing.

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so I suppose the $171/year registration fee is the reason that communi.sm doesn't exist. I'm mightily tempted by bonapart.ism too

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I of course meant bonaparti.sm

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In reply to @icecolbeveridge

@icecolbeveridge very good! It could be a mirroring site.

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nerds, geeks, and all other categories of poindexters: you've failed me and you've failed the internet. jointheb.org is unregistered

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In reply to @Gelada

@Gelada just prepend any word ending in -gon in my tweets with "regular"

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In reply to @Gelada

@Gelada ...meh. I don't care to think that much about it. Saw an octagonal church with a hexagonal tiled pavement.

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In reply to @Gelada

@Gelada and, the more we discuss this, the more @hexagonbot retweets me

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Having some trouble selling my account of a former Newcastle goalie's ascent through the ranks of freemasonry, "Fifty Grades of Shay"

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In reply to @mathsinthecity

@mathsinthecity if I want to link to another picture on flickr from a MitC snapshot, is that OK? The description field doesn't look HTMLy

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In reply to @_beanbot

@songdropapp There is no jazz category. boo.

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me too! (it's the same one) RT @stecks: I did a video! RT @aperiodical: Post: Maths Jam July 2012 - Paper Enigma aperiodical.com/2012/07/maths-…

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In reply to @mathsinthecity

@mathsinthecity thanks. I remembered after uploading that I took some better pics with my nana's camera.

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In reply to @mathsinthecity

@mathsinthecity because I have a camera obscurer

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I've helped Cushing make a pretty excellent card trick using a de Bruijn sequence and a full 52-card deck. Going to do a video tomorrow.

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In reply to @mountain_ghosts

@jcoglan sounds like a pretty compelling argument for a fork of bash

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In reply to @aperfect

@aperfect where "no Internet" means "copious abuse of a 3g dongle"

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I've just remembered I've got chocolate puddings in the fridge. Bonanza!

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In reply to @CardColm

@CardColm did you see we've reconstructed Diaconis's 6-card de Bruijn red/black trick with all 52 cards? Do you know any better versions?

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oh, excellent thefw.com/olympic-diving…

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In reply to @CardColm

@CardColm we're going to record a video today. Cards as 6-digit binary strings - first 4 face, last 2 suit. Take 64-bit de bruijn sequence..

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In reply to @CardColm

@CardColm ..take first 52 strings in that sequence, and swap invalid ones (face>12) with valid ones at the end.

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In reply to @CardColm

@CardColm .. so you only need to remember the rule to generate the de bruijn sequence and 6 6-digit string pairs to swap

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In reply to @CardColm

@CardColm so is that Diaconis's trick? David reckons Diaconis said there was no easy trick with exactly 52 cards

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In reply to @stecks

@stecks best thing about Scotland: they still sell those boxes of cadbury's chocolate milk in corner shops.

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In reply to @stecks

@stecks worst thing about Scotland: dirty sheep-stealing Scots.

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In reply to @stecks

@stecks no, because they know real money when they see it

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In reply to @CardColm

@CardColm Cushing is running across to the uni library to get it now

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999999999999999934463: the largest integer Chrome doesn't use scientific notation to display

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why 999999999999999934463? It's 10^21 - 2^16 - 1.

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In reply to @ColinTheMathmo

@ColinTheMathmo press F12 to get the javascript console up. Enter the number. It gets repeated back to you. That number plus 1 gives '1e21'

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In reply to @ColinTheMathmo

@ColinTheMathmo actually, to be precise it gets rounded to something a bit lower, but scientific notation isn't used; that's the point

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In reply to @ColinTheMathmo

@ColinTheMathmo yes. Of course, chrome can display any number you write in html....

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How many people from different departments can sit down in this room before two exchange words, or even eye contact? Current lower bound: 4

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In reply to @ColinTheMathmo

@ColinTheMathmo it's for my javascript algebra/eassessment system.

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In reply to @mountain_ghosts

@jcoglan isn't that just a subset of all programmers, though? I've seen plenty of people in many languages that just don't get abstraction

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In reply to @mountain_ghosts

@jcoglan maybe it's more apparent in javascript because it's missing so much due to the lack of a stdlib.

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In reply to @brittneybean

@brittneybean trust the American to go to the event with guns

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In reply to @icecolbeveridge

@icecolbeveridge do you mean an unsolved one?

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the letter I is not a separator. The pipe character | is just about acceptable. There is a difference with serif fonts.

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In reply to @Bishnavitch

@Bishnavitch ollymoss.co.uk/skateordie.gif

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In reply to @icecolbeveridge

@icecolbeveridge oh BRAVO

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Oh no, the krankiesque woman who can't stop talking is on the train

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August

Wander Wednesday: have a look at a nice maths blog on a variety of subjects run by @laurentduval laurent-duval.blogspot.fr

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outlook.com passwords can only be 16 chars long, so I had to truncate my hotmail one when signing in. It worked. Paging @jcoglan!

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In reply to @My_Metro

@My_Metro does the "no problems" tweet go out automatically each morning? That's a pretty bad idea.

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In reply to @My_Metro

@My_Metro you tweeted that trains were delayed, then that there were no problems, then another apology for the delays. Why?

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In reply to @My_Metro

@My_Metro ah no, the one I replied to was 8 hours ago

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In reply to @My_Metro

@My_Metro OK. *That* is a bad idea. I have deja vu. Have I complained about this before?

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In reply to @mountain_ghosts

@jcoglan yes

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In reply to @mountain_ghosts

@jcoglan well... "good". Quotes decidedly necessary.

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In reply to @mountain_ghosts

@jcoglan given how often my account has been hacked, I guess the latter

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In reply to @mathsinthecity

@mathsinthecity can you do some Oxford sleuthing for me? Does Peter Bryant work at your Dept of Education and does he have a web page?

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gosh the maths olympiad has a nice logo imo-official.org

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google now has a button at the top to turn off personalised results! Mirabile die!

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In reply to @peterrowlett

@peterrowlett @Tony_Mann another reason to move to wordpress soon *cough cough*

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In reply to @KSCMaths

@KSCMaths go on! Cave to temptation! We can publish it on the aperiodical.

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an enjoyable day of thrashing the @aperiodical news queue with @peterrowlett. Some of these stories are so old they're in Roman numerals!

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In reply to @mathsinthecity

@mathsinthecity never mind, successfully navigated the department's website now. Sleuth-hats off, please.

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In reply to @peterrowlett

@peterrowlett @aperiodical my day is basically over by lunchtime, typically.

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In reply to @peterrowlett

@peterrowlett I'm very much a morning person. A good six hours before lunch, then my brain switches off when I eat

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In reply to @qikipedia

@qikipedia it's uncopyrightable, which is troublemaking because I could do with earning a few bob.

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In reply to @qikipedia

@qikipedia and if you want a one-tweet Python command to get it: sorted([w for w in words if len(set(w))==len(w)],key=len)[-1]

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pretty pleased with this Python for the longest word with no repeated letters: sorted([w for w in words if len(set(w))==len(w)],key=len)[-1]

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In reply to @ben_nuttall

@ben_nuttall like, ("fizz" if x%7 else "buzz" for x in count()) ?

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In reply to @ben_nuttall

@ben_nuttall I'm not happy with [(x if x%5 else 'buzz') if x%3 else 'fizz' if x%5 else 'fizzbuzz' for x in count()]

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In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge either they were automatically truncating it and then hashing before, or they never hashed

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13:37 - time for clothes! Today wasn't meant to be one of those days.

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In reply to @qikipedia

@qikipedia oi, what about 'troublemaking'?

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In reply to @HilariousCow

@HilariousCow <16mb memory, 120 enemies... you haven't just made space invaders again, have you?

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In reply to @ben_nuttall

@ben_nuttall I spent a while dithering on whether constructing 'fizzbuzz' by concatenation was shorter

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oh, the reason "google maps" is always trending on google+ is because it counts people posting links to places. #embedallthemediaitllbefine

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In reply to @icecolbeveridge

@icecolbeveridge @ColinTheMathmo no, because then that's just an encryption: you can recover H(x) for each letter x.

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WHAT ARE ALL THESE PEOPLE DOING ON MY BEACH! IT'S NINE PM!!

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In reply to @peterrowlett

@peterrowlett @mathematicsprof I can't see what distinction you're making, Peter

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In reply to @jgrahamc

@jgrahamc what's the other 9%?

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In reply to @Htbaa

@Htbaa fontsquirrel.com to start with

1 favourite 1 retweet

This looks like a lot of fun youtube.com/watch?v=KoC1iT… @stecks

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A light bulb just popped. Hang on...

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In reply to @CardColm

@CardColm Can you be our Man in Madison? Take lots of pictures and notes and so on.

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In reply to @Bishnavitch

@Bishnavitch @AdamJackzon mmyeeeeeeesss.

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In reply to @mathblogging

@mathblogging how is it that vi hart's videos from way in the past are always at the top of your "by date" page?

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In reply to @mathblogging

@mathblogging oh wow, and they're not setting the publication dates properly

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In reply to @CardColm

@CardColm done

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In reply to @CardColm

@CardColm ooh! My video with the de Bruijn trick is (secretly) on youtube. Writing words to go with it now but watch at youtube.com/watch?v=g71wG6…

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hahahaha isthispoisono.us

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In reply to @standupmaths

@standupmaths @jjsanderson @elinoroberts watch out, if you come to Tynemouth I might trap you and make you write for the aperiodical

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In reply to @standupmaths

@standupmaths our thirst for mathematical witticisms can not be slaked!

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In reply to @monsoon0

@monsoon0 7m! I'd better bump "become an FRS" up my list of ambitions

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In reply to @peterrowlett

@peterrowlett @notonlyahatrack @aperiodical @jamesgrime yeesh! I took a quick glance at our twitter avatar, that's all.

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In reply to @peterrowlett

@peterrowlett @notonlyahatrack @aperiodical @jamesgrime consider it a special case of the lemma being portrayed.

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In reply to @IBLMath

@IBLMath @maanow the PDF is 8mb! That's a tiny bit inconvenient.

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In reply to @monsoon0

@monsoon0 well, I thought FAA was a bit out of reach for me so I picked the local equivalent

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In reply to @monsoon0

@monsoon0 alright, that's a deal: get me FAA, and I'll visit Australia to collect.

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waiting for the MAA MathFest programme to download so I can advertise today's talks. Not sure it'll get here in time: 1400 BYTES per second!

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UNAUTHORISED USE! NUKE THE BEACH!

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Good golly, the water at Tynemouth is positively warm! So long and thanks for all the icecaps.

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In reply to @peterrowlett

@peterrowlett crumbs, that doesn't sound like it was much fun to do

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In reply to @matthen2

@matthen2 ooh, do all the tricolores cancel each other out? And I expect a strongish ghost of a Union flag in the top-left corner.

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Haskell to generate the de Bruijn sequence (6,2): d = 0:0:0:0:0:1:zipWith (\ x y -> (x+y) `mod` 2) d (tail d)

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I mean *a* de Bruijn sequence (6,2)

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In reply to @ColinTheMathmo

@ColinTheMathmo they're not pegasi, silly!

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A long time ago, a young boy called Christian bought a box of pop tarts. The boy grew up and eventually forgot about the pop tarts...

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... UNTIL TODAY! I found that box of pop tarts, and I am eating them like a chocoholic Jacquard machine

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@Nathan1123 clopen your exercise book!

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In reply to @elinoroberts

@elinoroberts so, I suppose that valley's quite hard to refer to when you're speaking Welsh

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In reply to @haggismaths

@haggismaths there's a statue of Desperate Dan somewhere in the town centre that I was gutted to hear about only as I was leaving

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In reply to @MrHonner

@MrHonner likewise!

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In reply to @Andrew_Taylor

@Andrew_Taylor Broken News! Somebody else watched it! Let us exchange quotes.

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In reply to @danaernst

@danaernst finally! Great news.

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In reply to @IBLMath

@IBLMath finally they're doing something about blogging

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We need to raise 11 men in complete isolation from society, so they reach adulthood not knowing that England can't win on penalties.

1 favourite 5 retweets

*just* missed! Disheartening

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In reply to @ben_nuttall

@ben_nuttall @peterrowlett what a quick turnaround! I reckon we've got a shot at the podium in the 4x400 words reportage

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In reply to @brittneybean

@brittneybean ...it's called NAS, and quite a few people already do it? But it's more of a hassle than signing up for google, so most don't?

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In reply to @brittneybean

@brittneybean ok. Searching for "home cloud" turns up a few nice-looking things

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In reply to @icecolbeveridge

@icecolbeveridge nope. Looks Japanese to me!

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top tip: use your paper wallet as a damper for your phone so it doesn't make a nasty rattle when it vibrates on your desk.

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seeking funders for my new-Romantic fireworks show, "Sturm und Bang".

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Writing docs for @NclNumbas on readthedocs.org on @pkrautz's recommendation. It looks pretty good so far!

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Cushing is busily concocting odd searches to find @aperiodical. Example: "fibonacci went to the friend zone in the least efficient carnival"

0 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett @aperiodical another from Cushing: "fermat's last theorem is precisely the physicist's viewpoint of a hot dog"

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In reply to @jgrahamc

@jgrahamc I think it's more a product of a desire to have more flexibility in their stock control, which isn't a bad thing

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In reply to @peterrowlett

@peterrowlett yes, I think so.

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In reply to @peterrowlett

@peterrowlett Cushing says yours are too long

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In reply to @peterrowlett

@peterrowlett I worry that directly asking people to search for the site might incur google's wrath though.

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In reply to @peterrowlett

@peterrowlett those are good! David likes fruit dancing robots.

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Beating a hasty retreat to my coastal redoubt before Newcastle gets washed away completely

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If you're going on holiday in Europe this summer, have a look at the fantastic Turismo Matemático mateturismo.wordpress.com (@mathsinthecity)

3 favourites 3 retweets

my regexp would have worked perfectly if the person who wrote this code last summer hadn't occasionally used tabs to separate words

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the tab in question was in such a position that it only produced a one character gap anyway, so I only noticed it when I changed tabwidth

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can't stop watching the fractal juggler mike-naylor.blogspot.co.uk/2012/04/fracta…

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In reply to @jamesgrime

@jamesgrime and instead of moving south he stays up north

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In reply to @gingerbeardman

@gingerbeardman I'll go with: if you're thinking about that, you've already wasted too much time

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the dept has been given a second-hand blackboard on wheels but it won't fit in any of our rooms. Can you think of an imaginative use for it?

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In reply to @stecks

@stecks I was thinking along those lines, but weatherproofing is an issue

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In reply to @panlepan

@panlepan yes, I have several at home, but this one is over 2m tall!

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Pythonistas: is it possible to write a file-like object to a ZipFile object without doing zip.writestr(fileobj.read())?

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In reply to @panlepan

@panlepan alas, it's a rolly-round one. We've considered cutting off the blackboard material and covering the walls with it.

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In reply to @acmescience

@acmescience you explicitly asked for more cranks

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oh super, the @aperiodical has been slashdotted! Thankfully, nobody reads /. any more so the server is coping fine

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number of people who read the proof before speculating wildly: 0. Never change, slashdot! (for balance, reddit is doing equally poorly)

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In reply to @brittneybean

@brittneybean @aperfect Northumberland: also featuring a millennium-old herd of completely inbred super-cattle.

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In reply to @ColinTheMathmo

@ColinTheMathmo this one: aperiodical.com/2012/08/a-glid… (/. thread: games.slashdot.org/story/12/08/07…)

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has anyone considered town planning as a data structures problem?

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In reply to @kenfodder

@kenfodder I was thinking that quadtrees would allow everyone to pack into a small space, leaving lots of green countryside

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In reply to @mathsinthecity

@mathsinthecity we've been weighing up whether to report that on @aperiodical because it sounds so fishy. Russia Today isn't a great source

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In reply to @elinoroberts

@elinoroberts just looked out the window. Correct.

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In reply to @MathJax

@MathJax oh, I thought it already was. Here you go: github.com/christianp/mak…

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In reply to @jamesgrime

@jamesgrime this calls for a public awareness campaign! Can we make a ribbon with a big symmetry group?

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In reply to @brucel

@brucel @ben_nuttall wow. Why would they release that with their name attached? It's as bad an advert as a grocer putting out mouldy fruit

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In reply to @IMAmaths

@IMAmaths those would look a lot nicer with @MathJax maths.

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie yes!

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Newcastle Uni is disabling its SOCKS proxy. The 90s are finally over!

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Trying ubuntu again: how are you meant to get the proprietary wireless driver so you can connect to the net to download the wireless driver?

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it's SIGGRAPH time! I love SIGGRAPH.

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cyber panto horse! youtube.com/watch?v=wb1TS_… I'M HACKING THE GIBSON

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In reply to @DanielColquitt

@DanielColquitt that's what I normally do, but it's annoying. And free drivers don't work

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this lady wants to get where she's going a lot faster than her dog does.

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Jeera could give me less curry for the same money, leaving me equally happy *and* less of a porker.

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In reply to @jsnortheast

@jsnortheast is there going to be a meeting this month? I've just found out about you

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In reply to @ben_nuttall

@ben_nuttall but, like the four-billion-and-first coin flip after four billion heads, that's no reason to say you're also going to succeed

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Usain Bolt fact: Bolt often gets dirt in his eyes, so at home he's hired a personal eyebath attendant from Grenada Mote-Away Services.

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Olympic stats time: who is failing to win the most? somethingorotherwhatever.com/olympic-choker…

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hypothesis: something really, really bad happens to North Koreans if they get bronze or silver.

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oh man, Team GB has moved up the not-winning table after today's sailors, boxers and hockists choked somethingorotherwhatever.com/olympic-choker…

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(Canada still sits comfortably at the top of the table though. I think that level of almost-achievement will be hard to match)

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looking through blogger's javascript for @MathJax integration, it seems blogger has more easter eggs than real features

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Moving furniture. Apparently "quaternions don't commute!" is not helpful input when trying to get an armchair through a doorway.

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In reply to @monsoon0

@monsoon0 what's your favourite chalk?

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unexpected CP presence at the start of this week's math/maths. You win again, Hansen!

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In reply to @mountain_ghosts

@jcoglan wow! That's like #unhelpfulneckbeardadvice: The Twitter Feed.

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In reply to @stecks

@stecks and then your PGP key was in the last place you looked, right?

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In reply to @stecks

@stecks toys? I think we're doing mathsjam wrong

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just remembered that Sainsbury's was playing Creedence yesterday. I wholeheartedly approve.

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I'm watching The Red Shoes. As a keen fan of balletic megacamp, I wish to express my desire that it gets better. Not hopeful so far.

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Inability to see the colour red might be hampering my ability to enjoy this film

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how is it that nobody has remade Netstorm as a free to play facebook game?

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In reply to @Andrew_Taylor

@Andrew_Taylor b.co/I%39m%20trying…

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In reply to @Andrew_Taylor

@Andrew_Taylor answer: they do not work

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In reply to @icecolbeveridge

@icecolbeveridge if you put the source to that on github I'll add some nice MathJax to it

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In reply to @DanielColquitt

@DanielColquitt whence came this thought?

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In reply to @benkenyon

@benkenyon I can do one better: they were playing Alt-J in a mcdonald's I was in last week

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In reply to @peterrowlett

@peterrowlett I make it 27. What am I missing? Note Northampton and Birmingham appear twice in the mathsjam.com menus

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett ........ oh, boo to that! Sit on the naughty chair!

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gosh knitting's complicated

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In reply to @peterrowlett

@peterrowlett @MathsJam apparently so! Which is why I started the map

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In reply to @peterrowlett

@peterrowlett what does that second sentence mean? I can't parse it. Have another go

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In reply to @peterrowlett

@peterrowlett I've discussed that @stecks. I think she convinced me she had a good reason not to do that.

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In reply to @E_I_W

@E_I_W are you going to mathsjam tomorrow? I'm off work with exhaustion so probably won't go. Not sure if anyone else is around,

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In reply to @stecks

@stecks @peterrowlett by forgetting to type the word "with", I invented new language! Hooray, I'm Shakespeare!

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a pox on your house, dictate2us! Not sure why your emails are being let through by the uni's spam filters

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In reply to @jjaron

@jjaron @aperiodical the dude who posted it claimed he did it by hand: reddit.com/r/Minecraft/co…

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In reply to @jjaron

@jjaron are you setting up a "but it's only made of points" pun there?

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In reply to @mathsinthecity

@mathsinthecity far more interestingly: there's a town called Collegeville!

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In reply to @mathsinthecity

@mathsinthecity then you might do badly up here - we have lots of villages called things like "No Place" and "Pity Me"

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In reply to @mathsinthecity

@mathsinthecity it's grim up here, you know.

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED it's uni resits fortnight

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Woke up covered in cuts. I'm worried my house might be infested with Tories.

3 favourites 7 retweets

In reply to @CardColm

@CardColm I have a couple in my office, but 1) I'm not there today, and 2) they're not very neat

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In reply to @CardColm

@CardColm unless by "completed" you meant "all of the hyperbolic plane", in which case I don't have one

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In reply to @Electrokittie

@Electrokittie oh man now I want doughnuts too

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Email isn't an interactive medium with @peterrowlett. It's more like leaving messages in a time capsule for the benefit of later generations

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do I know anyone in academia who runs a programming club for their department or faculty?

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looking for angel investors for my new estate agency specialising in flipping run-down urban homes: Quain't.

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In reply to @outofthenorm2

@outofthenorm2 probability it stops after N goes, or what?

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In reply to @acmescience

@acmescience what, another one?

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joyous! cuteoverload.com/2012/08/22/sea…

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In reply to @acmescience

@acmescience us?

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In reply to @outofthenorm2

@outofthenorm2 there's always a chance it will stop, so expected number of rounds until it stops might be better

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In reply to @peterrowlett

@peterrowlett yes, it's a result of how much email you receive rather than how much you read

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@bucharesttutor @icecolbeveridge I've always had a couple of problems with that, starting with the letter x. There is a best way; use it!

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@bucharesttutor @icecolbeveridge no, I mean the x on that page isn't the best.

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@bucharesttutor @icecolbeveridge in fact, the X there is how I would write a Greek letter Xi

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@bucharesttutor that's the same letter. Don't tell me we have different ways of spelling letters!

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@bucharesttutor oh man, it's me who's wrong. Whoops!

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In reply to @icecolbeveridge

@icecolbeveridge @bucharesttutor I think this calls for another #twittorthography survey

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In reply to @MitchKeller

@MitchKeller @peterrowlett @aperiodical that's what I was thinking of. So what's common in the US? Surely not no. 1?

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In reply to @MitchKeller

@MitchKeller interesting! Does 3 look bad to you, or does the thinking behind it make sense?

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In reply to @plusmathsorg

@plusmathsorg which one of you tweeted that? I've never known how you do twitter. Anyway: did they try to get you to do 3 at school?

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In reply to @MitchKeller

@MitchKeller the thinking is that it looks completely unlike any other x, and especially not like the multiplication symbol.

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In reply to @pkrautz

@pkrautz I have several of these saved in posts on aperiodical.com for if I ever get round to writing them up.

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In reply to @pkrautz

@pkrautz though I'll try storify; it's just that every time I've looked at it it's scared me off

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In reply to @MrHonner

@MrHonner @icecolbeveridge @aperiodical @plusmathsorg they should be. Blame my cack-handedness

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"@MitchKeller: Once you start using x there is no longer a need for a symbol for multiplication" Vector multiplication:

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In reply to @MrHonner

@MrHonner @icecolbeveridge @aperiodical hang on! I've looked again and they are touching. It just looks like they aren't because of chalk

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In reply to @MitchKeller

@MitchKeller handwritten ones, yes. What do you do?

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In reply to @MitchKeller

@MitchKeller but arrows take so long! And a hat is for a unit vector.

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In reply to @icecolbeveridge

@icecolbeveridge @MrHonner @aperiodical precisely! Handwriting is different because it's hard to consistently replicate symbols

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In reply to @jjaron

@jjaron @aperiodical *and* for general writing?! Why?

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going to do a reverse-zoolander and write DO SHAVE on my bathroom door so I remember tomorrow morning before my shower

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Just had a superb veg samosa chilli chaat from Dabbawal at the mini-mela on Grainger Street. Shockingly, no other takers

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In reply to @jgrahamc

@jgrahamc I have a really sturdy Staedtler one. Good ones are normally listed under "architect's supplies"

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can anyone explain why this snail was hanging on to the top of a stalk in strong wind? youtube.com/watch?v=ryv5cX…

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The Mad Metal Mosquito of Tynemouth, finally captured and pacified in 1967. Behind, you can see its victims' graves

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argggg I *just* missed the hit counter on aperiodical.com going past 66,666. I'll have to wait ages for another chance like that!

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In reply to @Samuel_Hansen

@Samuel_Hansen re skype video recording: I use SuperTintin, which can do 720p into separate files for each stream.

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In reply to @nilium

@nilium yes, I have that book, but what do you need it for? It's not good for learning new things

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In reply to @nilium

@nilium look past the title and get this amazon.co.uk/gp/aw/d/184724… - it's really good.

1 favourite 0 retweets

Today I am Robin to Robin's Batman. Learning how to deliver lectures from the incumbent champion.

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The Mark Wallinger exhibit at the Baltic in Gateshead has a couple of great pieces about randomness and ordering. cc @mathsinthecity

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... One is a wall of shuffled, numbered bricks. The other is 2^16 pebbles laid out on chessboards and categorised with a binary code.

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In reply to @profkeithdevlin

@profkeithdevlin I've encountered a similarly annoying Scottish academic who uses "does anyone remember the quadratic formula?" the same way

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How annoying. The edit page for the @Storify story I had saved gives a 404 error.

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and the wordpress jetpack twitter embedding doesn't seem to be working either. Aaaaa everything is going wrong and I was going to do things!

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and now the @Storify link is working. Complaining worked! Or, it didn't not work!

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"proud christian livin evry day like its my last YOLO" - you might have misunderstood some core tenets of your faith, dude

1 favourite 1 retweet

"during the closure there will be no trains in both directions" - rats! I use superpositioned trains as the basis of my quantum computer

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*golf clap* RT @CardColm: @christianp surely you meant quantum commuter?

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5555 messages in my inbox. Take that, you obsessive inbox zero types!

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In reply to @walkingrandomly

@walkingrandomly oh, these are all read. Might have maybe deliberately by accident forgotten to mention that

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In reply to @icecolbeveridge

@icecolbeveridge if you've got $3m you can see this one in a bit more detail manuscr1pts.com/manuscriptsii/…

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In reply to @icecolbeveridge

@icecolbeveridge (fairly sure there's a legitimate source for that somewhere. Trying to find it now)

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In reply to @icecolbeveridge

@icecolbeveridge ooh, have you found a good example in Newton's notebooks?

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In reply to @icecolbeveridge

@icecolbeveridge I consider that the same as 3. Going for the same shape, in one less stroke

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In reply to @icecolbeveridge

@icecolbeveridge can you post that link as a comment on the post please?

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I've made web-compatible versions of the Computer Modern typefaces (the ones LaTeX uses) checkmyworking.com/cm-web-fonts/

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In reply to @JanvierUK

@JanvierUK very important, and it's the kind of thing you can't be told. Glad you're feeling OK

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In reply to @aperfect

@aperfect ahem I THINK YOU MEAN CUTTING-EDGE

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In reply to @pkrautz

@pkrautz I did not. I'll look now.

0 favourites 0 retweets

In reply to @FontSquirrel

@FontSquirrel how does the kit generator's backend work? I'm converting 60+ fonts so I'd like to spare your server and my patience...

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In reply to @FontSquirrel

@FontSquirrel ... by doing the conversion locally, if possible.

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@md267 @bluecombats @NoelAnn @peterrowlett well, wikia is popular, and could probably be convinced to do mathjax. See nakhmani.wordpress.com/2011/06/17/wik…

0 favourites 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen what bands are you already listening to?

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In reply to @FontSquirrel

@FontSquirrel thought as much. Oh well! I'll sit here pushing fonts through for a while. Thanks for replying.

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Sorry dudes, but I just made the best tweet ever from the @aperiodical account. Unless you're RTing it, there's no point using twitter now.

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In reply to @MrHonner

@MrHonner I won't lie, your tweet did prompt mine. But I am pulling muscles patting myself on the back, so I am deaf to your complaints

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to anyone who balked at my Computer Modern webfonts because they're too heavy: I've recompiled them to be <100k each checkmyworking.com/cm-web-fonts/

1 favourite 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen Alt-J, Becca Stevenson, Django Django, Lianne La Havas, Little Dragon, Sirius Mo, Jhameel, Flight Facilities, Neil Cowley

0 favourites 0 retweets

@disqushelp @pkrautz @ryanvalentin When did Disqus 2012 happen? We're trying to get MathJax to work inside comments. Same-Origin blocks it.

0 favourites 0 retweets

In reply to @mathsinthecity

@mathsinthecity if you wear the t-shirt and meet some*one*, that doesn't necessarily mean the t-shirt significantly improved your chances

0 favourites 0 retweets

In reply to @mathsinthecity

@mathsinthecity meeting that special dozen or so people would start looking convincing, but correlation is not causation!

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In reply to @icecolbeveridge

@icecolbeveridge famously not!

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Brr gosh it's cold!

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I didn't expect to hear the "Chinese Healthy Living Choir" singing Edelweiss when I emerged from monument station

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#eas2012 are any mathematical types also wandering around Dundee this afternoon?

0 favourites 1 retweet

Whoops, apparently the hashtag is #eas12. So again: are any mathematical types also wandering round Dundee this afternoon?

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In reply to @stecks

@stecks I think I've seen very similar words before

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In reply to @peterrowlett

@peterrowlett @stecks I've arrived in Dundee. 7 would be best for me.

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Dundee has some very nice buildings!

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In reply to @icecolbeveridge

@icecolbeveridge yes!

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In reply to @stecks

@stecks @peterrowlett I have dinner booked for 8! Later?

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Dundee also has lots of unapologetically mediocre shopping centres

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Euclid street!

0 favourites 1 retweet

The vajazzling shop I noticed last year has closed. It seems not even gaudy nethers are safe from the double-dip recession

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*and* a wealth of pleasing sculpture? Dundovingians, you're doing OK!

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Oh wow, aforementioned bits-blinging shop was on Nethergate! How did it fail?

0 favourites 0 retweets

Dundevarians? Dundorks? Dundeebriates? What are you called?

0 favourites 0 retweets

In reply to @Rathematician

@Rathematician is this where that "furry boots are comfy?" joke comes from?

0 favourites 0 retweets

In reply to @stecks

@stecks @peterrowlett 9? Hard to say

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Gotta be Dapper Dan!

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Henry's coffee house just made me an extremely nice hot chocolate

0 favourites 0 retweets

In reply to @aperfect

@aperfect as I often say, lonely fun is the only fun

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In reply to @maanow

@maanow @plusmathsorg a case of nominative determinism?

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In reply to @stecks

@stecks you should be in Dundee!

0 favourites 0 retweets

In reply to @geogebra

@geogebra did you tell us about this? Sorry if I forgot to write it up

0 favourites 0 retweets

In reply to @geogebra

@geogebra the ipad kickstarter. Looks like twitter didn't realise that's what I was replying to

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man, that shower was like being dribbled on by a dehydrated pensioner. 4/10, at least the temperature was consistent.

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and the towel smelled like abandoned popcorn

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In reply to @HilariousCow

@HilariousCow 0/0 is not infinity. Or, if it is, it's plus or minus infinity

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In reply to @EIMathematical

@EIMathematical @peterrowlett @stecks hint taken, it'll be on the Aperiodical shortly I'm sure

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September

In reply to @monsoon0

@monsoon0 there's probably quite a bit of selection bias

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In reply to @citizen_math

@mathalicious are the weekly videos on youtube the product of the math52 kickstarter? Trying to write you something nice on @aperiodical

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In reply to @monsoon0

@monsoon0 I mean, there was probably a lot of rubbish published in the 1800s that you haven't looked at

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In reply to @monsoon0

@monsoon0 ok, if we're being honest, I also prefer old maths to new. One of my most treasured possessions is an 1811 arithmetic textbook

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In reply to @monsoon0

@monsoon0 "the late William Tinwell" (not an anachronism: it's the sixth edition). "A treatise on practical arithmetic and book-keeping"

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In reply to @monsoon0

@monsoon0 it has a completely different set of concerns to new books, e.g. it tells you how to convert Edinburgh bushels to Newcastle ones

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In reply to @monsoon0

@monsoon0 it's fascinating as a record of how life used to be, and how important arithmetic used to be

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Bad tropes in the @EIMathematical weekly challenge video: opens with a cloud of mathsy symbols; people are "obsessed" with the subject.

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I nominate @peterrowlett for best sentence on the site this month, for the opener to this post aperiodical.com/2012/09/maths-…

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going into the database to edit a quip made in an uneditable comment: ultimo sadness. And what I'm currently doing

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gdamnsk: just had two ideas. By the time I'd written the first one down, I'd forgotten the second.

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I think it's fair to say I'm currently in the "manic" phase

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forget Professional White Background, this installer's going for Professional Impact Font on Button Labels.

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In reply to @Andrew_Taylor

@Andrew_Taylor that's my favourite one so far

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In reply to @citizen_math

@mathalicious @aperiodical cool. I think they're really really good. Especially when compared with something else we're writing about

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In reply to @ColinTheMathmo

@ColinTheMathmo Bart Simpson used to say it weekly on BBC2

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tyne tunnel permit topup site has introduced 6-digit passcodes as extra security. If you don't have one, it lets you make one up on login...

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but if you've already done that, it lets you log in with just your password and make a new one anyway. Secure!

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In reply to @standupmaths

@standupmaths @UsrBinPRL and it's combinations, not permutations

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In reply to @standupmaths

@standupmaths would it surprise you to learn Mastermind is NP-complete? arxiv.org/abs/cs/0512049

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In reply to @UsrBinPRL

@UsrBinPRL yeah, ok.

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In reply to @LargeCardinal

@LargeCardinal @standupmaths huh?

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In reply to @benjamintormey

@BenTormey sometimes people who do that look like they feel it's what society requires of them.

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Your suggestions for what CSF could stand for on this dude's bumper sticker. So far I have "Cornish Society of Falkirk"... #csf

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... "Carolingian Sovereignty Fund". "Congress of Sweaty Fishermen". "Comfortable Sofa Fortnightly" #csf

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Cookie Solicitation Front. That's a #csf I might start myself

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oh wow, the outlook.com interface is actually really nice. I'm using it to send an email for the first time since they switched.

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In reply to @peterrowlett

@peterrowlett @stecks hooray, we're popular in the South

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In reply to @jamesgrime

@jamesgrime in what way?

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oh my god this vim plugin is amazing github.com/tpope/vim-surr…

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ever so sorry, forgot my #unbearablecodinghipster tag there

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this spider has 10 seconds to comply

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In reply to @standupmaths

@standupmaths hey, we had assembly every morning in my primary school.

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In reply to @DanielColquitt

@DanielColquitt aaaaaa I'd forgotten about sciencedirect's mental scrolling behaviour. Well done, though.

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actually, left knee, I'm fairly sure I *didn't* just dislocate you, so buck your ideas up

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Kickstarter if I could be bothered: Rubik's cube with internal circuitry.that goes PING when you solve it

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More difficult: Rubik's cube that announces number of moves to solution at each step (now that we know God's number it's easy, right?)

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on the pinging Rubik's cube idea: would a Hilbert curve through the blocks work, so the circuit is only complete in the initial position?

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In reply to @jamesgrime

@jamesgrime excellent cartoon. Remind me to high-five you at the big MathsJam

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In reply to @jamesgrime

@jamesgrime yes I was. Young Indie is live-action, isn't it? Not very good, either.

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In reply to @jamesgrime

@jamesgrime hmm, hard to decide. How about: you can attempt to high-five me, but I'm at least a foot taller than you, so difficulty: hard

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In reply to @jamesgrime

@jamesgrime (I say "at least" in the "I have a rough memory of how tall you are, which time has exaggerated" sense)

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In reply to @jamesgrime

@jamesgrime only a few inches off! I never got into Batman: the animated series. I bow before your mid-90s TV expertise

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I've really enjoyed sitting in for this Amazon delivery. It's given me time to reevaluate my priorities in life.

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mencap chuggers: my face might be blank because I have one of the illnesses your charity helps with. Laughing is not the correct response

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In reply to @brittneybean

@brittneybean like, just a grid to put numbers in?

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In reply to @brittneybean

@brittneybean maybe BC Spreadsheet download.cnet.com/BC-Spreadsheet…

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well, my parcel failed to arrive. I could've spent the day on the beach!

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In reply to @KSCMaths

@KSCMaths person number 5 went for pi, but the editor chose not to put it in bold

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I hate HDNL so much. They've updated the tracking page overnight to say they left me a card at 5:30 yesterday. I've complained to Amazon

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In reply to @mathsinthecity

@mathsinthecity if you're using a calculator for anything that precise, you're doing it wrong. It's a fun story of international standards!

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In reply to @mathsinthecity

@mathsinthecity a somewhat interesting intro to floating-point troubles here: perso.ens-lyon.fr/jean-michel.mu…

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excellent paper title: "How Java’s Floating-Point Hurts Everyone Everywhere" cs.berkeley.edu/~wkahan/JAVAhu…

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In reply to @mathsinthecity

@mathsinthecity really? It's the Ecole Normale Supérieure of Lyon!

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In reply to @mathsinthecity

@mathsinthecity one of my favourite jokes.

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In reply to @benjamintormey

@BenTormey escalators are my cardio exercise. #lazyboy

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In reply to @benjamintormey

@BenTormey man, not even

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today: was going to continue rewriting @NclNumbas with knockout. Instead: getting it to do pretty things with d3.js

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so I've missed the day again, waiting in for this package. "Any time between 8am and 9pm" isn't very precise

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This is ridiculous! It's now 48 hours since I last stepped outside the house. And the courier might not come until 9pm!

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Fresh air! The parcel has finally arrived so I can leave the house yippeeeee!

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In reply to @DanielColquitt

@DanielColquitt yeah, but they didn't leave a card yesterday so they sent a courier today

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Carrot and houmous club! Who's with me today?

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In reply to @Bishnavitch

@Bishnavitch get the bus straight back to town. Carrots and houmous is an excellent combination

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chrike on a bist this code is badly written

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In reply to @CardColm

@CardColm the source for that is available online: tcm.phy.cam.ac.uk/~tmf20/TIES/PA…

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In reply to @FOTSN

@FOTSN trufax.

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In reply to @peterrowlett

@peterrowlett Located under "arts" for the same reason it's "maths" instead of "math"

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programming in PHP is like giving instructions to a psychotic 6-year-old who hates you

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In reply to @peterrowlett

@peterrowlett sort of, yeah. I was getting at that "mathematics" used to mean the liberal arts

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In reply to @peterrowlett

@peterrowlett but on googling, it seems I was wrong to think that

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ow ow ow ow ow ow ow ow ow ow ow! #dyspraxia

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In reply to @peterrowlett

@peterrowlett oh man the trouble I get from a tiny quip

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A 96-year-old man sat down next to me at the station and told me all about the old times. What a dude.

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Say goodbye to pensioner misery with Uncurmudge, new from CPCo! Patented inflatable grandchild can listen for hours on just 2 AA BATTERIES!

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In reply to @haggismaths

@haggismaths rats! I've been saving that for my next Aperiodical Roundup!

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following "are scientists...", here's "are mathematicians...". I think "sometimes" answers all four.

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there are some pretty science-fiction sounds happening outside. The Venusians might be invading via Tynemouth.

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In reply to @icecolbeveridge

@icecolbeveridge almost a clever joke, but monopoly is non-deterministic

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In reply to @icecolbeveridge

@icecolbeveridge yes, given a stream of dice rolls I can tell you if the corresponding game ends

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In reply to @icecolbeveridge

@icecolbeveridge or maybe I can't! Instant doubt sown.

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In reply to @mathsinthecity

@mathsinthecity do I recognise the dude on the right of that photo?

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In reply to @MB_Whitworth

@MB_Whitworth @mathsinthecity aha, that's probably it! I'll see you in November

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In reply to @mathsinthecity

@mathsinthecity never minds caps, I'm still waiting for my umbrella

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why are regional tourism websites universally terrible to navigate?

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Jesmond Dene hooray! Gonna go grab a gander at the Golden Guernsey goats!

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new series of 7 day sunday! bbc.co.uk/iplayer/episod…

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Podcast with @peterrowlett and @stecks for the @aperiodical. @standupmaths makes a largely inaudible guest appearance. aperiodical.com/2012/09/aperio…

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In reply to @pelagikat

@hornmaths what system is it?

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A013916: Numbers n such that the sum of the first n primes is prime. oeis.org/A013916

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In reply to @plusmathsorg

@plusmathsorg I like how Gömböc was de-umlauted for the URL: goumlmboumlc. I'll call it that from now on

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In reply to @GreyAlien

@GreyAlien you only have one in space, but you might have several in time

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In reply to @stecks

@stecks you could while away the time designing an interlocking pieces puzzle and call it Aburrdeen

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In reply to @mathsinthecity

@mathsinthecity in tropical arithmetic it's 1, so I assume it's the philosophers who take the conventional view.

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In reply to @eAssess

@eAssess there's no comments section!

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In reply to @AMSGradBlog

@AMSGradBlog that site has died! It's throwing a PHP error in statpress.php

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In reply to @AMSGradBlog

@AMSGradBlog yes

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In reply to @AMSGradBlog

@AMSGradBlog you've probably got it cached, in fact

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In reply to @AMSGradBlog

@AMSGradBlog yes, working now

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In reply to @icecolbeveridge

@icecolbeveridge it said yesterday that he was leaning out of the car to pick up a parking ticket. Oddly no mention of that now.

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In reply to @peterrowlett

@peterrowlett you're a real autodidact!

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I think the spiders outnumber me in this flat not just by headcount but also by total body mass

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In reply to @brianmgonzalez

@BrianGonzalez__ thanks, but I'm on windows and I've already done it

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In reply to @monsoon0

@monsoon0 visit mathcentre and tell them to give their tech guy a kick up the backside for me, please

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the ADL SCORM test suites are distributed exclusively in a windows installer .exe, for no good reason. They're just static files!

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In reply to @monsoon0

@monsoon0 it isn't!

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In reply to @Samuel_Hansen

@Samuel_Hansen I had the thought before that now might be a good time to do the "are there enough maths communicators" idea from a while ago

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In reply to @Samuel_Hansen

@Samuel_Hansen man, you were asking for people to interview you, and you say there aren't enough in your press release, so...

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In reply to @Samuel_Hansen

@Samuel_Hansen ok. I'm going to email you a short list of stupid questions and we'll see where that goes

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In reply to @aperfect

@aperfect @LWigelsworth hello that is a very nice biscuit tin back there yes it is mmhmm

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In reply to @standupmaths

@standupmaths (it's really 27, because midlands towns are in both the North and South lists)

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In reply to @icecolbeveridge

@icecolbeveridge ah, then my map is out of date, and Katie decided which side of the border two towns lie on

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In reply to @icecolbeveridge

@icecolbeveridge @standupmaths some python BeautifulSouping later, I agree with you. I don't have Baltimore or Norwich. Is Baltimore real?

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In reply to @stecks

@stecks interested to hear your reasons for putting Norwich in the "N England" list on mathsjam.com

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In reply to @icecolbeveridge

@icecolbeveridge yes, but does it happen? I've never heard anything from them

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In reply to @stecks

@stecks @standupmaths half the towns in "N England" are in the midlands. Don't they deserve their own list now? Or could it be "N&Central"?

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In reply to @stecks

@stecks yes!

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In reply to @stecks

@stecks girl, ain't need no JS no more! CSS got yo back jsfiddle.net/38P9A/6/

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In reply to @stecks

@stecks gtalk me when you've got time

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In reply to @elinoroberts

@elinoroberts so it isn't just me who has trouble with that trip!

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an end to the north/south divide! All English @MathsJams are now under the same menu on mathsjam.com

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and I recoded the nav menus while I was there

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I am weeping as I eat this guacamole, because I know soon it will be just a memory.

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created a tortilla shrine around the remaining guacamole. Then committed instant sacrilege by eating it all.

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the guacamole's life was short but beautiful. It will live forever in my heart.

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In reply to @peterrowlett

@peterrowlett @MathsJam @stecks hm! Works on my phone. I wonder why iphones don't do hover properly. I've added tabindexes, does that work?

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In reply to @peterrowlett

@peterrowlett @MathsJam @stecks ok, I'll find someone in the department with an iphone and commandeer it for a bit

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In reply to @peterrowlett

@peterrowlett @stecks got hold of an iphone and sorted it. Should be working now, if you'd like to test it

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In reply to @standupmaths

@standupmaths you're on in Stockton! my friend has just moved to Stockton, so I now have two reasons to go there! I may see @FOTSN yet!

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.@alexbellos I just tried to send you a dm, but I think tweetdeck would rather I communicated telepathically

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In reply to @alexbellos

@alexbellos and it turns out you're not following me. Oh well.

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ended a mathematical yo mamma argument with "yo mamma was too wide to fit in the margin"

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In reply to @peterrowlett

@peterrowlett @stecks I think it's half what it used to be. I'll make it shorter. It's only there to copy the old look

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In reply to @standupmaths

@standupmaths @Duncan_Destruct cuboid walks into bar. Barman says, "why the long face?"

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In reply to @velvlol

@velvlol @burnsidemaths yep, you've got me there. Joke isn't funny any more because it's based on an absurd premise. I have so much to learn

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type (some) TeX and (sometimes) get equivalent unicode, for pasting into things like tweets unicodeit.net

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All these terrible people coming out to Tynemouth to alcoholise themselves

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The "oh, who even cares" burger, x2. Mayo, tomato, buffalo, buffala, gherkin, batavia. Not inedible.

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In reply to @christianp

@christianp I forgot another B: bacon!

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In reply to @christianp

@christianp and bufala has one f. That tweet went about as well as tonight's meal-planning

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In Chinatown looking for premises for my new laser hair removal business, Singe-A-Pore

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put food in oven. (time passes) remember to put timer on.

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Trying to find something to watch while eating my dinner, just heard Robert Webb claim "clopen" isn't a word. Tut tut.

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Standing at the start of the great North run, watching everyone gets ready. Best costume so far: a Rubik's cube

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Everyone's run through now. Bananas beat Scooby Doos 6-5. Very defensive play from both sides this year. Ostriches out in force

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In reply to @elinoroberts

@elinoroberts I very much am not. Going home for a hot cocoa now

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I keep noticing people using "this" and "these" instead of "it" and "they" in writing. Have I missed a grammar rule?

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In reply to @HoeJodgkiss

@HoeJodgkiss did you retune on the 12th like ALL THE BILLBOARDS IN THE CITY told you?

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In reply to @HoeJodgkiss

@HoeJodgkiss truth. There's one literally outside your flat.

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED I've missed this entire thing. Is there a krispy kreme shop in town or something?

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In reply to @raj7desai

@raj7desai I've just noticed your name is an anagram of "ideas jar". A nice fit with Maths Jam :)

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In reply to @kenjilamb

@kenjilamb hash-sash?

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In reply to @jgrahamc

@jgrahamc I don't recognise it now, and I have CDs bought from Tower Records. Did people have trouble opening them?

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Knackered myself sprinting for the metro, further validating my decision made at an early age not to become a running back.

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In reply to @jgrahamc

@jgrahamc ah! Yes, that would've been useful

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HATE IE HATE IE HATE IE HATE IE. #debugging

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here's a fun IE bug: on alternate presses of Ctrl+R to reload the page, font-faces don't load. F5 works fine. #aaaaaaaaaaaaaaaaaaaaaaaaaaaaa

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In reply to @LexicalAnalysis

@LexicalAnalysis @haggismaths @aperiodical I think things will change pretty soon. For one thing, non-research teachers can be cheaper

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In reply to @stecks

@stecks @peterrowlett you do *one* little thing, and from then on... I'll see if I get round to it this afternoon

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In reply to @ColinTheMathmo

@ColinTheMathmo @stecks @peterrowlett ha! Did we just fix it at exactly the same time?

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In reply to @ColinTheMathmo

@ColinTheMathmo @stecks @peterrowlett then, go team redundant effort!

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In reply to @aPaulTaylor

@aPaulTaylor did you see this comment on your "words to fill space" post? aperiodical.com/2012/04/words-…

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Newcastle @MathsJam is tomorrow, 7pm at the Charles Grey pub. All welcome. I'll be making things with rhombi, and I might have some puzzles

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED what if his palsy palsy was caused by too many cigarettes! Karma negated!

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HATE IE HATE IE HATE IE HATE IE HATE IE HATE IE HATE IE HATE IE HATE IE HATE IE. #stilldebugging

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In reply to @ColinTheMathmo

@ColinTheMathmo you might be able to start here: data.gov.uk/dataset/nptdr

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Cushing has been anagramming my name: fish-car intercept; "nice craft, hipster"; first cheap cretin; fit hipster cancer; erect rapist finch.

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IE and Chrome regexes disagree about what counts as whitespace. #hateIE

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maths modelling with Cushing before MathsJam: what if killing other prisoners got their sentence taken off yours? gist.github.com/3743994

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message for my last git commit: "More commas for the comma god!"

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In reply to @peterrowlett

@peterrowlett can I turn off the "share posts on twitter" option for the mathsjamphotos tumblr? About to upload my pics from last night

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In reply to @peterrowlett

@peterrowlett just discovered there's a button to turn tweeting on/off per post, so we can both be happy

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In reply to @peterrowlett

@peterrowlett I think it does work on my phone, I just forget to use it.

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In reply to @peterrowlett

@peterrowlett and of course I would forget to press the button on the second one

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doing with generator expressions in python what should be done with monads in haskell.

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The 4-cards-to-24 problem from @MathsJam last night annoyed me, so I brute-forced it with Python: gist.github.com/6bf0ad2e83b7fd…

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it's just occurred to me that that script solves the numbers game on Countdown, too.

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In reply to @icecolbeveridge

@icecolbeveridge it should use all four cards, yes. What numbers did you have?

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whoops, my script doesn't rearrange the numbers. Doh

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In reply to @icecolbeveridge

@icecolbeveridge oh right, you mean with your script. Yes, mine insists on all four.

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In reply to @icecolbeveridge

@icecolbeveridge you can get 24.2857, if you don't mind fractions...

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stones at various stages of erosion in Tynemouth Priory: flickr.com/photos/christi… flickr.com/photos/christi… flickr.com/photos/christi… flickr.com/photos/christi…

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(well done to the chap who chose Hardy Basalt for his grave stone)

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In reply to @CardColm

@CardColm similarly: this on my blog, checkmyworking.com/2012/02/puttin…, prompted by a tweet by @qikipedia

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In reply to @CardColm

@CardColm @peterrowlett @MathsJam Ji claimed you can do it "most of the time".

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In reply to @ColinTheMathmo

@ColinTheMathmo @CardColm @peterrowlett @MathsJam factorial wasn't part of the game!

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen and it isn't impossible that most of us are listening to relprime in our bombproof hyperbaric chambers

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In reply to @maanow

@maanow interesting notation in the solution: (12)(3) instead of 12x3 or 12.3. Is this a US thing, or peculiar to the question setter?

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guess which browser didn't parse "\v" as ASCII character 11 until version 9!

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PS #hateIE

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hoy Platonists, here's a zen koan for you: if nobody agrees with a true statement, is it still true?

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In reply to @aPaulTaylor

@aPaulTaylor did you forget your login for aperiodical.com? I can reset it if you want.

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In reply to @aPaulTaylor

@aPaulTaylor ah, yes. My sympathies.

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In reply to @TeaKayB

@TeaKayB yes

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Alice Arnold reading out funny tweets on the radio4 morning news briefing. What have we become?

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What happens if you disagree with the sentiment in the Prayer for the Day? Do you spend the rest of the day with an unscratched prayer itch?

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In reply to @dmh10

@dmh10 ah, that's not the same, god isn't listening.

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In reply to @MathsCareers

@MathsCareers they'd look even more beautiful, and be more legible to blind potential mathematicians, if you used MathJax on that page

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In reply to @peterrowlett

@peterrowlett anything involving making rectangles

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In reply to @peterrowlett

@peterrowlett mega-pedantry?

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In reply to @peterrowlett

@peterrowlett I hope so. I was thinking more of of carpentry and landscaping though.

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my git repository has a development branch that I get to check out for about 5 minutes each day before another IE bug appears in master.

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In reply to @kirkpatricke

@kirkpatricke if the multiplication is on quaternions, that might not be nonsense (it is though)

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I'm office-naked, which means I've taken my glasses and my shoes off

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In reply to @mathsinthecity

@mathsinthecity @naomifantabulus here's mine: second shelf from the top flickr.com/photos/christi…

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett division by zero isn't infinity, it's undefined! #saddestpedant

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In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett ok, one cooked dinner to whoever comes up with the best golden ratio / email nonsense fact

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In reply to @libraryncl

@nulibrs @nulibsage happy hooray!

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In reply to @mountain_ghosts

@jcoglan yes, it opens my browser.

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In reply to @mathpunk

@mathpunk @qikipedia but you can enumerate the rationals, so the argument works the same way. The reals are where it breaks.

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In reply to @mathsinthecity

@mathsinthecity could you ask your Devonian followers to take a picture of this window in Great Torrington? mortati.com/glusker/fowler…

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In reply to @divbyzero

@divbyzero is it bad that I made a simulation so I could say "right to left"?

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there's nothing I enjoy more than writing the Aperiodical Round Up. Could it maybe be my job? Who will pay me to do it?

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Pre-dinner: zippy, whip-bang, straight-to-the-point prose. Post-dinner: yawnful, meandering, superfluously florid murbles. Better stop soon.

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In reply to @vickytnz

@vickytnz this is my cool side-project. Thanks to my magnificently stingy part-time contract, I never do proper work on Fridays

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In reply to @vickytnz

@vickytnz CFP?

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WANTED: combination slide rule / slide whistle

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Finally, Aperiodical Round Up 7! Featuring ternary timesers, timbres, Tuvans, togas, trefoils and tons t'more. aperiodical.com/2012/09/aperio…

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In reply to @wppwah

@wppwah @mathpunk no, but there's one that comes first in the order, and that'll do

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In reply to @mountain_ghosts

@jcoglan where is this marvellous thread?

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And then at Cabosse in Warkworth I had this frankly pornographic hot chocolate. It was indecent. Still coming down now!

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I've had a lovely day out along the coast. At Barter Books I found some new activities for @MathsJam...

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In reply to @missradders

@missradders it's near the back left, first shelf after fiction. I have so many good books from there, including one by an ancestor Perfect!

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In reply to @missradders

@missradders better leave it a while. I've pretty much cleared it out.

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In reply to @missradders

@missradders another very very good shop for maths books is Westwood Books in Sedburgh

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In reply to @standupmaths

@standupmaths @ajk_44 glad to hear you're not Cowed by punappreciative types

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In reply to @EliotBall

@EliotBall ahh, but they minimise flammability per unit buying power

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In reply to @wppwah

@wppwah @mathpunk I won't disagree with that, because I don't think "smallest uninteresting number" is an interesting property anyway

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my mum is being asked to report statistics as percentages, from a population of size 3. Oh no!

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I'm watching Doctor Who, just like a real person! And I might watch the X Factor later. Just watch me watch it.

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@Talithin @peterrowlett might it be a DNS problem? ima.org.uk works for me. Try bit.ly/P9CgTv.

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Unplanned impact of pure maths: Joseph Whitworth decided to standardise screw threads after helping Babbage build the Difference Engine

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I know how the NAS can raise more money than it will ever be able to spend: show this video youtube.com/watch?feature=… #tankengines! #squeeee!

1 favourite 1 retweet

In reply to @monsoon0

@monsoon0 we are! But I suppose it's hard to persuade people to move to Australia.

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In reply to @monsoon0

@monsoon0 correct: Australia is too hot.

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In reply to @monsoon0

@monsoon0 where are you at the moment? Are you still in the UK?

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In reply to @monsoon0

@monsoon0 isn't it glorious? Make sure you visit the countryside while you're here (preferably leave Yorkshire. Norther is better)

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In reply to @pkrautz

@pkrautz thanks. Not sure I would've used the word "linkspam" though...

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a bloseneed! how annoying!

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Progress on my Wieringa roof continues apace. Only another all of it to go!

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In reply to @vickytnz

@vickytnz my grandma brought it back from your homeland. The label (worn out) says something like "©Fromiva"

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In reply to @vickytnz

@vickytnz after some discussion in the office, we now think it says "Frokiwi"

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ok IE, which ones are the real ones? #hateIE

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unique Scrabble scores: pizazzy(39), oxyphenbutazone(41), pizzazz(45), pizzazzes(47), razzmatazz(48), razzmatazzes(50), razzamatazzes(51)

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(I used the complete word list from scrabblejunction.org/wordlists.htm)

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Most popular score: 13 (15492 words)

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In reply to @aPaulTaylor

@aPaulTaylor oh man, I didn't think of that! I will recompute

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In reply to @aPaulTaylor

@aPaulTaylor so is oxyphenbutazone's 41 the only unique score?

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In reply to @aPaulTaylor

@aPaulTaylor that's already happened up here. Still marginally cheaper per litre than Sainsbury's own brand, but not by much

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If you replace every letter in a word with its Scrabble score, the most common string is '3111111', shared by 1263 words.

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In reply to @dmh10

@dmh10 the "complete word list" from scrabblejunction.org/wordlists.htm

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In reply to @dmh10

@dmh10 do you know where I can get SOWPODS?

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In reply to @dmh10

@dmh10 404, dude! I tried that before.

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my Scrabble score statistifying Python code: gist.github.com/3777345

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In reply to @ColinTheMathmo

@ColinTheMathmo you should also record an album with someone, so you can have an Erdos-Bacon-Sabbath number

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Cushing and I celebrated 16.16pm, aka square-square o'clock, with a high-twenty-five.

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In reply to @haggismaths

@haggismaths that fact is my favourite fact about fibonacci numbers. There's a nice easy proof by induction.

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @aperiodical hah, so I'm the "silly twitter questions guy" now? I'll give it a go.

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In reply to @mathsinthecity

@mathsinthecity you have palindromically many followers!

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In reply to @mathsinthecity

@mathsinthecity hahaha, of course two people had to unfollow you while I was writing that...

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In reply to @mathsinthecity

@mathsinthecity good news! Either they've seen the error of their ways, or some replacements have picked up the slack

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In reply to @Bishnavitch

@Bishnavitch sorry, going to see Marcus Brigstocke in durham

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In reply to @vickytnz

@vickytnz is it alright if I use this picture in my mathsjam recap blogpost?

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In reply to @vickytnz

@vickytnz cor, that was quick! I noticed you retweeted something of mine before the timer had moved past "now" recently, too!

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I've written up last week's Newcastle @MathsJam, just like I used to do: checkmyworking.com/2012/09/newcas…

1 favourite 1 retweet

Hello. My name is Inigo Montoya. 25 years ago you killed my father. Prepare to die. newsday.com/opinion/viewsd…

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In reply to @Andrew_Taylor

@Andrew_Taylor but sunshine is not in its preimage. BAD ANALOGY

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Best Mitt Romney tumblr? I think so. lucilleandmitt.tumblr.com

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In reply to @CardColm

@CardColm *you want to write a review for the aperiodical* *wavy jedi fingers*

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In reply to @peterrowlett

@peterrowlett @stecks @MathsJam that sounds sort of sordid when you say it that way

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12:12! Why do I keep noticing these times? I've almost covered each hour over the past week. WHAT IS GOING ON WITH MY BRAIN

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Tomorrow, 27/9, cancels down to an integer. Is that an interesting fact?

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In reply to @nrichmaths

@nrichmaths my immediate reaction on seeing the new site: please please use something other than colour to differentiate the house icons

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late arrival at the category theorists' ball: Mr and Mrs O'Morphism and their son, End O'Morphism

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... and Jack O'Bian, and Adam Ards-Pace, and Kat O'Gory, and all the rest

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In reply to @elinoroberts

@elinoroberts that has put a big smile on my face

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In reply to @elinoroberts

@elinoroberts is it still here? I thought it was moving to Manchester

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In reply to @elinoroberts

@elinoroberts gosh. Well, Maker Faire usually coincides with me getting a completely heinous flu...

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In reply to @mountain_ghosts

@jcoglan wouldn't a pull request mentioning the issue solve that, by alerting both the original author and issue creator that there's a fix?

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In reply to @mountain_ghosts

@jcoglan "fixes lazydude/repo#42" would do it.

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In reply to @Andrew_Taylor

@Andrew_Taylor If someone shares something only with their circles, you need to be in their circles. My posts are public by default.

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unicodeit.net I love you, you are my bestest friend

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths hey, at least you're not one of those self-hating comedians

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incredible. The BBC Magazine has led me to a blog I enjoyed reading. Not One-Off Britishisms: britishisms.wordpress.com

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BBC News is doing very well today bbc.co.uk/news/world-eur…

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hang on, I've just realised that my checkmyworking.com/misc/makebigma… does the same thing as unicodeit.net, but with more symbols and instantly

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In reply to @haggismaths

@haggismaths you ate it so quickly you didn't even see what it was? What a pig! And now I want to know what it was too.

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12.12! I have a disease, I'm sure!

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In reply to @icecolbeveridge

@icecolbeveridge yes I can. It's called "Simple MathJax"

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@ProfKinyon @DanielColquitt I think \( \) can delimit inline maths, or that might only be in some dialects

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"one of the region's fastest-growing companies... has gone from 4 staff to 6" - bad percentages on Look North

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Sorry, have slandered Look North. It's ITV News.

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In reply to @EliotBall

@EliotBall NI is an anti-punch: it pays for punches to be made better should you receive any later in life

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14.14! I saw 12.13 and 13.12 before so I thought I was cured, but it seems it was just a temporary reprieve. O woe!

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In reply to @icecolbeveridge

@icecolbeveridge @standupmaths dude, you need to move to our a PDE and impose a boundary condition v(Leicester square,t) = 0.

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You could call my clock-related worries... The Baader-TIMEhof phenomenon! #cleverestmanontwitter

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That's it. I'm just going to have to go round the corner and buy a Gareth James brownie. There's no other option.

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Good news: I have established Rapport with the girl in the chocolate shop. Said "I'm here for my usual" and she understood.

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Bad news: I have a usual in a chocolate shop

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"Timothy Gowers" is a phonetic anagram (anaphone?) of "Gimme the towers". The Prof must be a big fan of DotA.

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In reply to @mayr2

@mayr2 radio watch, in sync with the atomic clock. I definitely have a problem.

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@nulibsage I can't work out if Elsevier's 2013 price list for maths matches their claim to go under $11 per article. Do you know if it does?

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is there a greasemonkey script that destroys those INSANELY annoying sliding toolbars on ScienceDirect? Or redirects article pages to PDFs?

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In reply to @Bishnavitch

@Bishnavitch TGI Friday! That is something like poetic justice, or dramatic irony.

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In reply to @mayr2

@mayr2 anyway, no matter how far ahead or behind my watch is, it only shows xy:xy once per hour

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wanted: quick-witted historicalists to help with my 6-minute recreation of WW2, between 19:39 and 19:45 each evening.

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In reply to @peterrowlett

@peterrowlett lols. Where's that?

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Hilariously, Elsevier has an ethics site. ethics.elsevier.com/index.asp

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In reply to @peterrowlett

@peterrowlett it can go wrong if they're using a self-hosted or old version, or if the page does funny things when loading.

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In reply to @peterrowlett

@peterrowlett PS I have some hot invective in the post queue that I would love you to publish

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guess which one of us left his freezer door open for 15 minutes while his dinner was in the oven

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Tragedy #251: shunned by the rest for flaunting math skills instead of pretty plumage tragedyseries.tumblr.com/post/324699069…

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In reply to @brittneybean

@brittneybean it isn't one of those tortured euphemism pieces the British press has to put out because of our libel laws, is it?

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In reply to @mountain_ghosts

@jcoglan change to another tab, right click on looping tab, close it. I think chrome chucks in a very rare event check even for running code

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I have an inner Charlie Chaplin and he comes out when I'm tired. After baking brownies, I am covered in an amusing amount of chocolate

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In reply to @peterrowlett

@peterrowlett @stecks ping! Are you both available?

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In reply to @peterrowlett

@peterrowlett @stecks we weren't sure if you were going to appear, so we didn't record. Tomorrow?

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October

I've caught freshers flu AGAIN. They should have to go in quarantine before they're allowed on campus.

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In reply to @Samuel_Hansen

@Samuel_Hansen could you hide the smiley stats counter image on acmescience.com? It's in the Jetpack Stats settings.

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In reply to @CardColm

@CardColm reminds me of the cover of this Bayesian stats textbook indiana.edu/~kruschke/Doin…

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dying of ill.

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In reply to @outofthenorm2

@outofthenorm2 looks like the OCR is misrecognising "Spain"

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In reply to @haggismaths

@haggismaths I always resented my supervisor telling me to be less conversational.

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Who has two thumbs and can't raise them to point at himself because he's so ill? And on what medium does this joke not work anyway?

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oh wow, Jamie Lee Curtis has three men's names. Now on a quest to find the standup routine from the 80s that made that observation

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is there a way for me to pay money to watch Community online legally while I am waiting out my final hours? Not a fan of skeezy pirate sites

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In reply to @jjaron

@jjaron that sounds unfair. They're really nice. (I posted the tweet from @aperiodical)

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In reply to @monsoon0

@monsoon0 @MrHonner youtube has a speed setting. That dance is pretty great at 2x playback.

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unfortunate that the woman presumably about to have an abortion in the stock photo looks just like the expert beneath bbc.co.uk/news/health-19…

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Just discovered that @nclmathsoc's netball team is called the Denominatrixes. Points deducted for incorrect plural, but A+++ otherwise!

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In reply to @FOTSN

@FOTSN @geekandgoddess Should've remembered e instead of pi. e is more romantic because it's <3. (hope the date went well anyway!)

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Are there loads more spiders than normal this year or have they just started following me around?

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A reason this is not the best timeline: things are not delivered to my house by pneumatic tube.

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Aaaaaaaa Moodle has so much hidden state it's so terrible aaaaaaaaaaaaa

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor alas, it doesn't work the other way! Disappointing. wolframalpha.com/input/?i=appro…

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BEST THING EVER for us Daltonists: a colour picker which names your colour colblindor.com/color-name-hue/

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In reply to @divbyzero

@divbyzero ooh, it's like a mathematicians-only optical illusion! That's egregious! How did it ever get in print?

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In reply to @divbyzero

@divbyzero ooh, his "Five sculptures (1972)" is about the same thing but is less disagreeable because it demonstrates the problem

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The problem with Excellent Fajita Club is it comes with automatic enrolment in Long Stay Toilet Club

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I hope BBC News give up on their mad six-word limit for front-page headlines. English grammar is pretty flexible, but not *that* flexible!

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Ex 1: "No kitchens 'risk school meals'" turns out not to be the negation of "some kitchens risk school meals".

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Ace! Two thumbs up. RT @nulibsage: Power in the palm of your hands - Press Office - Newcastle University ncl.ac.uk/press.office/p…

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mixed messages from ISS. Suppose I should've emailed webmaster before tweeting it...

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just submitted my talk abstract for the big @MathsJam in November. Won't be anything new to followers of my blog, but it's my fave puzzle

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The LMS isn't on Twitter. That's sort of bad, isn't it?

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In reply to @mathsinthecity

@mathsinthecity -0 is really important in floating point arithmetic (computer number representation) -- see p13 of port70.net/~nsz/articles/…

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In reply to @EliotBall

@EliotBall life on the edge, yes, but the long edge or the short edge?

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In reply to @mathsinthecity

@mathsinthecity is that deliberately a 404?

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In reply to @mathsinthecity

@mathsinthecity oh, now I can! It's good to be recognised for your work.

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to cure my palindromic-time-noticing illness, I've searched for a rarer set of interesting times. Two-way prime-times: gist.github.com/3859511

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(I do realise there are more of those than palindromic times. Still trying to find a suitable property)

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In reply to @JanvierUK

@JanvierUK there are loads here: gurmeet.net/puzzles/

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I've just worked out why my cakes always come out wonky: my oven is on a tilt

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In reply to @stecks

@stecks OR: my asymmetric designs will take the art-baking world by storm

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In reply to @TimandraHarknes

@TimandraHarknes @stecks OK, so, that's what I'm doing, and I usually try rotation, but it doesn't feel right, icing-wise.

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In reply to @stecks

@stecks Ratzenberger!

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In reply to @monsoon0

@monsoon0 absolutely! In the past we've written on the Aperiodical about Amazonian studies into the number line and counting systems

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In reply to @monsoon0

@monsoon0 or, some people in my department have a project modelling migration patterns in India

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In reply to @monsoon0

@monsoon0 number line: aperiodical.com/2012/05/the-nu…, counting: aperiodical.com/2012/07/finger…

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In reply to @katebook

@katebook @MathsJam @stecks @standupmaths hint: let n=p_1^a_1*p_2^a_2*...*p_k^a_k. Can you write expr for no. factors in terms of the a_i?

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This is a great sequence on the OEIS. So many serious and so many silly representations! oeis.org/A000975

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In reply to @jjaron

@jjaron You're a writer, so coin one!

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David has suggested an excellent sequence: a(n) is the first number in the nth OEIS sequence.

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I suggested 1+ the nth number in the nth sequence, to ensure we make a novel sequence, but some of them are finite so it doesn't work

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previous tweet is total lies. Of course any number is different from no number, so we're still unique

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.@jjaron of course there is! David found it: oeis.org/A091967

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In reply to @aPaulTaylor

@aPaulTaylor paradox klaxon!

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In reply to @aPaulTaylor

@aPaulTaylor (assuming it gets into the OEIS)

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In reply to @katebook

@katebook yes, no. of factors is (a_1+1)*(a_2+1)*...*(a_k+1). It's called the tau function, or the divisor function: planetmath.org/TauFunction.ht…

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In reply to @JanvierUK

@JanvierUK I died in a dream once! Does that mean I really died? Am I Haley-Joel Osment?

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My friend David has started a blog. He's posted an interesting limits fact: …venturesofdavidcushing.blogspot.co.uk

1 favourite 3 retweets

I was 2 minutes late to get my car out of the car park! Rrrrrr!

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checking the social plugin on @aperiodical doesn't pick up this tweet as a comment aperiodical.com/2012/10/unimpo…

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In which @stecks makes me feel unexpectedly positive about the @aperiodical: mathblogging.wordpress.com/2012/10/12/mat…

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I've got a backpack in my backpack. Amazingly, Xzibit was not involved.

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It looks like the "MATH PROBLEMS?" image is going round facebook again. I had 350 hits on my "solution" post today checkmyworking.com/2012/02/math-p…

0 favourites 1 retweet

I don't know whether or not to feel sad when I find a clearly insane person's time-cube-ish pseudoscience rantings.

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Dragging Chrome tabs to the side of the screen snaps them to half-width, as if they were real windows all along! When did they put that in?

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In reply to @Htbaa

@Htbaa yes, that's been there, but they also now snap to edges, which they didn't do before.

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how much more broken stuff can I throw in this cupboard before I need to move house?

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The Penrose magnets kickstarter has 11 days to go and still needs $1000. Back them so I can be mildly amused for a bit! kickstarter.com/projects/19009…

1 favourite 2 retweets

In reply to @SellaTheChemist

@SellaTheChemist @peterrowlett I haven't seen any. I assume the places that do have dart-and-kite floors had the tiles custom-made

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In reply to @SellaTheChemist

@SellaTheChemist @peterrowlett one dude's written up his experience (and jig-construction diagrams!) in this word doc: google.co.uk/url?sa=t&rct=j…

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M&S uninterested in my song praising their "Cool & Fresh" line of boxers. Shame. Dudes: buy some, and get ready to feel comfortable.

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Google Reader 0! I have read the entire internet! I suppose I've *got* to clean my flat now.

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The Red Bull Stratos livestream is amazing, but the imperial units are putting me off. How can you do science these days not in metric?

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oh no, they're not just using imperial! Pressures in psi, but oxygen flow in litres/minute.

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In reply to @treasa

@treasa it's pretty scientific extreme sports. They've taken Red Bull sponsorship so they can do their experiment, not the other way round

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In reply to @treasa

@treasa the sponsors are Austrian; the space company is American. At least Red Bull insisted on having metric translations of measurements

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REDUCING THE DISTANCE TO THE SUN?!?!?! I wish they'd got a narrator with half a clue

0 favourites 1 retweet

I love this jumper. It is my Grey Woollenwear of +1 Snugness

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In reply to @mathsinthecity

@mathsinthecity that "tetrahedral" church looks more like a prism to me

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In reply to @mathsinthecity

@mathsinthecity not really, because they're all joined together, and every polyhedron can be decomposed into tetrahedra

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In reply to @qikipedia

@qikipedia does the 1,227 count include the fact that the book contains 1,227 facts?

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Mine and Cushing's desk animals are having a stare-off.

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In reply to @monsoon0

@monsoon0 just noticed another maths/anthropology paper in my Mendeley library: iascud.univalle.edu.co/libro/libro_pd…

0 favourites 1 retweet

Welcome @TweetsofCushing to Twitter! Fittingly, he's my 444th follower.

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In reply to @standupmaths

@standupmaths I'm still waiting for someone to shout that on Masterchef

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For #adalovelaceday, big up to Hazel Perfect who did group theory, like I do!

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I just want to sleep! Stupid tooth.

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I wish real people had names as excellent as those used by spammers. Kalervo Whaphams just created an account on the aperiodical.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @jamesgrime good point. We need to go into business making mid-90s nostalgia drinks, as Perfect-Grime-Beveridge.

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In reply to @icecolbeveridge

@icecolbeveridge @jamesgrime PS: Whaphams would take 1st place and you know it.

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"Rhabdomancy is a type of divination by means of any rod, wand, staff, stick, arrow, or the like." #goodword

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A glimpse of the glamorous life of @TweetsofCushing: "I saw a square today." …adventuresofdavidcushing.blogspot.com/2012/10/equi-s…

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In reply to @outofthenorm2

@outofthenorm2 oh, did that happen? I haven't paid attention to the Nobels. By all means write something if you want to.

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Christian Perfect: unable to stick finger in own nose on first attempt. #adventuresinsnotmedication

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Hooray! The Penrose fridge magnets kickstarter reached their goal! kickstarter.com/projects/19009…

2 favourites 1 retweet

In reply to @aperiodical

@aperiodical @peterrowlett whoops, replied from the aperiodical account! Tweetdeck is hard.

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Seeing so many people smoking on Northumberland Street has reassured me that I'm not living so unhealthily after all.

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@Nathan1123 5318008, surely?

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22kg of steel, 9 digits of precision, 1 arithmetic operation: it's Ramón Verea's direct multiplier, built in 1878. history-computer.com/MechanicalCalc…

1 favourite 1 retweet

Well I know exactly what I'm going to do today. kellscraft.com/BlackboardDraw…

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Bachelaxity (n): lessening of attention paid to use-by dates, caused by living alone for a prolonged period of time

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I've never walked so briskly in my life! Goodbye, left knee, you sacrificed yourself when I really knee-ded you.

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In reply to @CardColm

@CardColm @stecks I'm editing it now. Should be up soon.

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#hateIE #hateIE #hateIE

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It's so foggy at the coast! Worried this train might lose its way

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In reply to @ben_nuttall

@ben_nuttall that's very reassuring, thanks. Sitting at the back anyway, just in case

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Foghorn guided us safely into Tynemouth station. Slaughtered a pigeon on the platform as a votive

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In reply to @elinoroberts

@elinoroberts really? I went a couple of years ago and it was awful. Has it changed hands?

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Yeah, I think I'm going to use that indicator bulb replacement as my entry for Manliest Man this year.

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In reply to @aPaulTaylor

@aPaulTaylor you do? My sympathies to @stecks

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@DrMathS the images on drmaths.co.uk don't load

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In reply to @Thalesdisciple

@Thalesdisciple @MrHonner with two words it's called a googlewhack. Never heard of using three words

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Koala hospital! That's a thing! cuteoverload.com/2012/10/17/gre… Get better poorly koalas ♥ ʕ •ᴥ•ʔ ♥

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In reply to @vickytnz

@vickytnz we were just discussing this in the maths dept this week! The pro-B^F3 lobby was surprisingly strong. I say there are only 2 films

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In reply to @aperfect

@aperfect mum's just given me my tintin t-shirt. Thanks!

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Mega unfortunate copy in the latest Living North

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having dinner with my good friend Maghetti Speatball

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In reply to @jjsanderson

@jjsanderson @MikeTonge yeah, I've never had any trouble in Chrome

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In reply to @danaernst

@danaernst @MathJax I think Markdown turned your ' characters into the more-correct-for-prose apostrophe character. Try ^{\prime} instead

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In reply to @danaernst

@danaernst @MathJax oh, it's switched to right quotes, not two apostrophes. I still blame markdown, anyway.

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In reply to @elinoroberts

@elinoroberts I think he's done a few. He's just got a nice voice, hasn't he?

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everyone-else-is-getting-off-the-train-panic. #germanemotions

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I've just had to put on the emergency clean jumper I keep at work. Too proud of my sensible preparedness to feel shame

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Instant payback shame: paid £5.14 instead of £3 for fruit at M&S because I mixed clementines with satsumas

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In reply to @Samuel_Hansen

@Samuel_Hansen I'm really enjoying the Erdos episode. Worth my kickstarter money on its own. Thanks for collecting these stories

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For the first time ever, I'm giving a talk on a subject I can't just talk about off the top of my head on Wednesday. Worrying.

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Newcastle @MathsJam is tonight, 7pm,upstairs at the Charles Grey pub. I have polynesian knots, SKI calculus cards and a really hard puzzle

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Kids sitting on the metro with his warhammer carry cases. That could've been me, if I'd been more outgoing when I was young. #respect

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Aw man autocorrect why do you gotta ruin it all by taking the longest possible word I could've written instead of the one I did

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In reply to @manytypesoftea

@manytypesoftea hey, I remember you! Wow, you're still following me. I congratulated you last time you tweeted well and I'm doing it again

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Can't tell if the stallholder selling sports bras under a banner advertising space hoppers is being satirical

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In reply to @MathsJam

@MathsJam @standupmaths hint: logs and integrals

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In reply to @C_J_Smith

@C_J_Smith there are no exceptions to fresher's flu!

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In reply to @MathsJam

@MathsJam -> MAN re pascal triangles: poor show not writing down numbers mod n

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How is your research useful? researchinprogress.tumblr.com/post/328866989…

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This javascript function disappears as soon as you call it with anything other than itself: `a = function(b){return a=b}`

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In reply to @Bishnavitch

@Bishnavitch sorry, too busy

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for m'colleague sitting opposite: what's the best way to make "Case N" headers/sections for a proof by cases in LaTeX? \theoremstyle?

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outlook.com email is so nice to use. Can't quite bring myself to switch from gmail though.

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@Nathan1123 oh no no, it's very different from the outlook web access that institutions use

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In reply to @vickytnz

@vickytnz are you planning on coming to another mathsjam in the future? I think you'd've liked the string patterns we were doing last night

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In reply to @vickytnz

@vickytnz EXCELLENT

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buffalo buffalo buffalo buffalo paintings lyonswiergallery.com/wittfooth_3pas…

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gosh these slides are good-lookin'. deck.js + mathjax + computer modern bright = mmhmm!

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In reply to @danaernst

@danaernst in an hour or so once I've given the talk!

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There is no classical music octet called Baroquetagon. REMEDY YOURSELVES, MUSICIANS

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Slides from a talk about zero-knowledge protocols checkmyworking.com/2012/10/slides…

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In reply to @stecks

@stecks interesting! They're on the server...

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In reply to @stecks

@stecks ah! got the capitals wrong. Rubbish windows case-insensitivity

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Right so, 1/0 isn't defined, but is |1/0| ?

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In reply to @DanielColquitt

@DanielColquitt yes

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revelation: ctrl+alt+vowel gives puts an acute accent on in windows 7. There must be something similar for grave, but what is it?

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In reply to @komiga

@komiga tried that. It doesn't work. ctrl+alt+` produces ¦ for me.

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when you enter the second minute of saying "ummm", it's fair to say you've lost your train of thought

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In reply to @stecks

@stecks me too!

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Ha. @stecks and I are writing pseud waffle in parallel on a google doc. Too earnest!

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In reply to @stecks

@stecks 80s laser noises!

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In reply to @stecks

@stecks oh god, and now we're pseuding on twitter too.

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It's cho'clockolate!

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In reply to @alexbellos

@alexbellos nope, nope and definitely nope. I was *enormously* annoyed to find this out the hard way

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In reply to @alexbellos

@alexbellos and if you're thinking of doing the "gardens" visit instead: it's OK, but not amazing. Go only if you're already in Granada

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In reply to @haggismaths

@haggismaths run them through fontsquirrel.com/fontface/gener…

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The site I run with @peterrowlett and @stecks, the @aperiodical, is half a year old today. Cor! aperiodical.com/2012/10/the-ap…

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Sat in the dental hospital waiting to be seen. If it turns out they need to do anything, this afternoon's Maths Aid is going to be fun.

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Hah, my phone's picked up the university wifi at the dental hospital. Fantastic.

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Let's take a trip straight back to the 90s! I just checked, and rinkworks.com still exists. I used to think it was the funniest.

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In reply to @standupmaths

@standupmaths amazon says a cube in its packaging is 5.6 ounces / 150g amazon.com/Winning-Moves-… amazon.co.uk/Rubiks-9420-Cu…

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In reply to @peterrowlett

@peterrowlett um....? Really furious chalk-holding?

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In reply to @standupmaths

@standupmaths would I be spending too many pedant points if I raised the question of whether it's "the Rubik's cube" or just "Rubik's cube"?

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In reply to @Bishnavitch

@Bishnavitch just had a root canal done, so best not

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Person I'm sharing this office with has started laughing very loudly at the internet. I think she wants to chat to break the silence...

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... but I find her monumentally tedious. Hoping she'll eventually give up.

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I'm getting nostalgic for this morning with the nice dental student doing my root canal

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North Shields smells really strongly of weed again. I hope they realise "stonefish" isn't just made by getting normal fish stoned.

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In reply to @DanielColquitt

@DanielColquitt no replies apart from yours. I think you're right.

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Watching the latest @numberphile video. It seems @standupmaths used to be able to write ∞ properly, but then he took an arrow to the knee

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My mum has just discovered TODAY, AT THE AGE OF 56, that there is such a thing as a pause button. #themindboggles

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Her defence: "I've never had cause... to pause. Hey, tweet that!"

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Seriously men-dudes, buy some M&S Cool&Fresh pants. Anything else feels like sackcloth now and I will not allow it to touch my bottom.

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In reply to @standupmaths

@standupmaths @apontzen does #lll\_ work as a hashtag?

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In reply to @HoeJodgkiss

@HoeJodgkiss the cheap ones are very middling, but nowhere near as bad as tablets can be. Be prepared to be underwhelmed, but they're useful

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Wow, the person who presents Money Box looks even more boring than I could have dared imagine

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in other radio gripes: why wasn't my list of favourite programmes from the old radio iplayer carried over to the new one?

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and another one! Why can't I sort programmes in a category by broadcast date any more? IT'S A RUDDY LIBERTY

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today's Geometry Daily is nice geometrydaily.tumblr.com/post/343564820…

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Beginning to see the favourable aspects of Dorothy Dandridge's Cow Cow Boogie youtube.com/watch?v=xovmaG….

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Your response, Ella Mae Morse? youtube.com/watch?v=H9AfqV… #nevermind

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In reply to @Dr_Lucie

@Dr_Lucie @standupmaths so the #domputer has a bandwidth of ~0.0000000004 mbit/s. ALMOST AS SLOW AS AOL AMIRIGHT

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In reply to @jgrahamc

@jgrahamc I'm writing a quicky news piece about Plan 28 for @aperiodical. Can I email you some questions?

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In reply to @icecolbeveridge

@icecolbeveridge actually, you're already registered on the site - if you log in to the admin page, can you see the "anyone can edit" posts?

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In reply to @jgrahamc

@jgrahamc I don't know your address. Can you dm me?

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Nothing fills me with existential dread like the final half-hour of Radio 4 each night. And Something Understood trebles it.

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Shine, cosh, than, ar-cosh, arc-shine, arc-than. #letscallthewholethanoff

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oh, and sesh, cosesh, coth, of course. #letscallthewholethanoff

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@DanaKazim Dangerous Knowledge is very good dailymotion.com/video/xdoe8u_d…

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In reply to @peterrowlett

@peterrowlett @KSCMaths @aperiodical aw but I was quite pleased with my hashtag

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just realised I could've gone with #thesinhing instead of #letscallthewholethanoff. Maybe we need a #hyperbolicpuns hashtag as well.

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"I know what each of those words means individually..." is the response 9/10 times one mathematician describes his work to another

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the building manager has taken down the sign which used the word 'egress'. Victory!

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Moodle's DB abstraction is terrible, and its SCORM module is even worse. ~600 DB queries each time a student submits an answer!

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aaaaaa big mathsjam is less than 3 weeks away aaaaa I haven't prepared anything aaaaaaaa

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In reply to @pelagikat

@hornmaths yes. Frames are layers; put (1000ms) at the end of layer names to set display time. Sth like Plugins->Animation->Play to preview

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In reply to @Qunchuy

@Qunchuy @KSCMaths @aperiodical @Shamoquinn oh, rats!

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Every time the site gets 386 views in a day I do a tiny smile.

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There were 2 ships called MS Windoc and they both hit bridges on the Welland Canal, 60 years apart en.wikipedia.org/wiki/MS_Windoc… en.wikipedia.org/wiki/MS_Windoc…

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Today's Tynemouth hipster winner is the dude wearing a gendarme cap. Truly didn't expect to see a member of the Foreign Legion today

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Difficult for anyone to challenge him now. Only someone having moved out of Tynemouth a year ago because it's gone too mainstream could try.

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(standing on the metro platform looking out for just such a person to look down their nose out the window as their train goes past)

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now standing on the train listening to Breakbot (it's good to listen to the oldies occasionally) and tweeting about hipsters. #awinnerisme!

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ahahahahahahah RT @Kit_Yates_Maths: This article "proves" a link between maths and nature. bbc.in/VUPmLG

1 favourite 1 retweet

moodle's SCORM module: 70 instances of eval() in the JS; ~600 DB queries per save; custom AJAX calls instead of YUI's; ETC AD INFINITUM

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Solved a Fresnel integral while peeling my lunchtime clementine. Pretty chuffed.

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More food calculus: evaluating double integrals is like picking strawberries; triple integrals are like picking strawberries in a chopper

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While discussing what we'd do with our last half-hour of sight, we found "Last of the Brazilians" is not an extant porno spoof. Disappointed

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The maths behind my Fresnel integral peel: arxiv.org/abs/1202.3033

1 favourite 1 retweet

In reply to @maanow

@maanow this says it's no longer attributed to Franklin: jstor.org/stable/2695704

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#hateie #hateie #hateie #hateie

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Just won a vicious maths battle with @TweetsofCushing. Matt has a Russian textbook with ALL the questions in

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doing some top githubbing today github.com/numbas/editor/…

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Pretty happy with how my evening's going

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In reply to @vickytnz

@vickytnz I was recently told I have too much tintin merchandise. Impossible!

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@DanaKazim Pure: python or Haskell. Applied: MATLAB or maybe Mathematica. Stats: R.

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In reply to @vickytnz

@vickytnz the Tintin Shop in London is the place that makes it all, and well worth a visit. My bro bought me an ace t-shirt for £10 recently

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@DanaKazim much nicer syntax, easier to write what you mean without fiddling about with language stuff. If you want speed, haskell is fast.

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@DanaKazim python, by far. Try femhub.com/textbook-pytho… and diveintopython.net/toc/index.html

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Is anyone interested in taking part in a v casual "recreational maths seminar" g+ hangout? We'd look at papers from my esoterica collection

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In reply to @icecolbeveridge

@icecolbeveridge have you got a bit of time to test the idea now?

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In reply to @icecolbeveridge

@icecolbeveridge ok, ping me when you're ready and I'll start a hangout

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In order to be blinded by paintballs, PJ had to be shot in both eyes simultaneously. Ladies and gentlemen, Byker Grove was an inside job!

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I'm down the rabbit hole now. Everyone is involved. Where was that fat man from The Machine Gunners on the day PJ was shot?

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That went rather well. I think the recreational maths seminar is a goer. Thanks to @icecolbeveridge for sparing time and brainpower.

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In reply to @TweetsofCushing

@TweetsofCushing 874 - gist.github.com/3983772

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oh no my mind's started pronouncing 'skeleton' as if it's a kind of fundamental particle. Now I can't stop thinking about boogly death rays

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arXiv submitters: I love it when you use your home-made LaTeX macros in your abstracts. Deciphering two-character names is my fave hobby

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I pledge my patronage to the first clothes shop to put out an advert backed by the song "Jumpers", to the tune of Dizzee Rascal's "Bonkers"

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Spent the morning baking instead of working. Can't baking be my job?

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Terrified that children will knock on my door and I'll have to give away these choco crinkles before I can give them to my grownup friends

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Fenwicks window! Fenwicks window! Winwicks fendow! Fendow wenwicks!

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Boo!

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In reply to @pelagikat

@hornmaths no, more like a cookie crossed with a brownie

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I have learnt from the master RT @TweetsofCushing: @christianp is now a fellow aces up master after my tutoring

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In reply to @Bishnavitch

@Bishnavitch saw it on Sunday, and I'm at a Halloween party tonight, sorry. Pizza on Friday?

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In reply to @Bishnavitch

@Bishnavitch Ahh, peanuts to you then

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it's wednesday and I've just realised I haven't read any comics this week. Not even Dinosaur comics! Re-re-re-rectify!

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WHAT IS THIS VOODOO?!

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November

Why is the new iPlayer radio so totally worse than the old one? They've stripped out loads of useful information and views

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Facebook suggests I might like the page for Rethink Mental Illness. Man, I wish I could just reconsider my decision to be mentally ill.

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(I'm sure Rethink Mental Illness does good work and I'm going to look at it so thanks Facebook, but I am compelled to misinterpret the name)

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Oh no I'm still Gove!

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Sometimes I feel like I'm the only person who turns up for maths-aid on time. (I am)

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TIL the symbol produced by \cdot is called an interpunct. en.wikipedia.org/wiki/Interpunct. More dottery: tex.stackexchange.com/questions/1918…

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In reply to @TweetsofCushing

@TweetsofCushing NO WAY

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In reply to @helenarney

@helenarney try bethere.co.uk

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oh man, I copied my local copy's address instead of the one on the web! #meganoob

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can someone test a little cellular automaton for me please? somethingorotherwhatever.com/spirallife/

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In reply to @alnelson_writes

@MuseGarden thanks. I'm not really using d3 properly, or for anything that wouldn't be easier in jquery. Changed what I was doing halfway!

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In reply to @alnelson_writes

@MuseGarden I will engithub it forthwith

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In reply to @alnelson_writes

@MuseGarden github.com/christianp/spi…

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Everyone should talk like Aisling Bea. bbc.co.uk/iplayer/episod… That would be just wonderful.

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In reply to @alnelson_writes

@MuseGarden yeah, Cell.update

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In reply to @walkingrandomly

@walkingrandomly less of a generalisation and more of an analogue, if you'll excuse the excellent pun

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errors caused by whitespace are the hardest errors to find

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everyone pick an offensive foreign stereotype card from this old Happy Families pack! bibigreycat.blogspot.co.uk/2012/10/happyf… I'm going to be Mr Jham Jhar

1 favourite 1 retweet

If you're interested in taking part in my google+ recreational maths seminar, please tell me what times would suit you: aperiodical.com/2012/11/a-recr…

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In reply to @icecolbeveridge

@icecolbeveridge can you add +The Aperiodical on google+ so I can add you back, and then mention you in a post?

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In reply to @TweetsofCushing

@TweetsofCushing NO WAY!!! Mine ends in 5 :(

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In reply to @TweetsofCushing

@TweetsofCushing there are quite a few LaTeX errors in your post

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INSPIRED! cuteoverload.com/2012/10/22/thi… (but you shouldn't dock tails)

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I feel left out with everyone saying their phone number is prime. My mobile number ends in a 5 :(

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What's the deal with Americans writing numbers like "one (1)" on forms? Do a significant number of Americans not learn how to read numbers?

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hooray slow internet hooraaaaaaaaay

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In reply to @LargeCardinal

@LargeCardinal would you like to write something about Wow-Cards for @aperiodical? I don't really get the idea, but it's symmetry, right?

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well I'm not going to not use the Bourbaki dangerous symbol now I know about it en.wikipedia.org/wiki/Bourbaki_…

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Are attitudes to presenting proofs different between France and UK? I've seen lots of French authors point out tricky parts; none in English

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In reply to @standupmaths

@standupmaths they even had a reference to copy on the window next to it!

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Oi! Lagabouts and dragalarks, upload your photos of last month's MathsJam to mathsjamphotos.tumblr.com/submit or ELSE

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Is it a coincidence that a deck of playing cards is the same size as two alphabets?

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In reply to @icecolbeveridge

@icecolbeveridge ahh, so that's the secret to podcasting success: mention each listener by name. So simple!

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In reply to @CardColm

@CardColm As I typed: not going to not use. It's very simple, Colm!

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In reply to @HoeJodgkiss

@HoeJodgkiss and start a bootleg record label called Ruff Trade

1 favourite 0 retweets

Newcastle MathsJam October 2012 Recap checkmyworking.com/2012/11/newcas…

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In reply to @n1vux

@n1vux @peterrowlett @reflectivemaths very interesting!

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In reply to @peterrowlett

@peterrowlett @aperiodical hahahaha! If I ever need you to turn your phone off I know what to do

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In reply to @aperfect

@aperfect Ahh, now I do too!

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How the religious manage to listen to Sunday on radio 4 every week and manage not to be bored into apostasy is a real mystery to me.

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In reply to @peterrowlett

@peterrowlett what time are you recording? I'm going to post in a bit saying rec. math. seminar will be Sunday 6pm, but need to pick a paper

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In reply to @peterrowlett

@peterrowlett (first one next Sunday, not this one, but I'd like you to announce it on mathmaths)

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In reply to @alexbellos

@alexbellos worse: in a woeful display of subediting, they capitalised 'maths'. Hang 'em from lampposts!

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In reply to @LargeCardinal

@LargeCardinal @aperiodical an intro to what they are and why they're mathematically interesting would be good. Could be text+pics or video

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In reply to @Samuel_Hansen

@Samuel_Hansen has anyone else complained about the download for the latest ep of relprime cutting out halfway through?

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In reply to @Samuel_Hansen

@Samuel_Hansen would you believe that the 10th attempt, started after I tweeted, has worked?

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Please join in with my recreational maths seminar on google+ next Sunday! aperiodical.com/2012/11/recrea…

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All you haters can do one, Emacs Hart is the best at making maths videos.

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In reply to @peterrowlett

@peterrowlett whoops, forgot I had two links!

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In reply to @aPaulTaylor

@aPaulTaylor this-is-my-gif-folder.tumblr.com/post/6751617169

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In reply to @benjamintormey

@BenTormey do have some of that ice cream though. It's amazing

1 favourite 0 retweets

In reply to @mountain_ghosts

@jcoglan yo dawg, I heard you like writing code while you write code, so switch to python, where you don't need to do that

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In reply to @mountain_ghosts

@jcoglan you seem to be complaining about ruby's module system a lot lately. Python's had a working one since the start.

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In reply to @LargeCardinal

@LargeCardinal email root@aperiodical.com and I'll send you the "how to write for us" doc. Any length is fine.

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watching the tracker for a thing I ordered from the US. How does it take a week to get from Maryland to New York? They're like 4 hours apart

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In reply to @TweetsofCushing

@TweetsofCushing aaaaaaaa it was 08:08 when I read that tweet!

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In reply to @pelagikat

@hornmaths oh yes! I completely forgot

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have been re-appraised of the situation vis a vis hurricanes on the east coast of the US. Well done USPS for holding on to my package! #fnar

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I've made a huge mistake

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In reply to @ben_nuttall

@ben_nuttall I need IE for testing!

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what was wrong with right-click menus popping up where the mouse is? I quite liked that. It meant I didn't get RSI.

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I'm well impressed with how often the interface freezes so far. Gives me time to gather my thoughts.

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I've worked out how to close programs! Happy dance!

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In reply to @gingerbeardman

@gingerbeardman pretty terribly so far. They weren't kidding about metro not being adapted for desktops. No keyboard shortcuts!

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WHAT WAS WRONG WITH WINDOWS?! THE RUDDY THING IS NAMED AFTER THEM!

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oh I give up. I'm going in to work. That's how bad windows 8 is.

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Dell "Express Service Tags" out by 1 digit correspond to different PCs. Did nobody teach you Hamming codes, Dell? #angerday

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In reply to @matthen2

@matthen2 what do tides look like if the moon's orbiting fast enough to be 10m above sea level? Do waves have time to fall?

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Following much whinging by @TweetsofCushing, I've edited my MathsJam recap to credit him for more things. checkmyworking.com/2012/11/newcas…

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In reply to @vickytnz

@vickytnz there are so many other nice coffee places in the city centre!

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In reply to @alexbellos

@alexbellos I interviewed the director for The Aperiodical: aperiodical.com/2012/10/the-ca…

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Congratulations to the family with the bonfire 6 feet from their front door and 3 feet from the public footpath.

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hooray, graphics! My mining and crafting days are not yet over

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In reply to @wormboyslim

@wormboyslim @aperfect worse: I installed windows 8 on my laptop

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In reply to @stecks

@stecks do you have a copy?

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Ordering a very particular kind of toothpaste from amazon. #autismlife

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In reply to @Samuel_Hansen

@Samuel_Hansen you didn't vote for Nimrod Y.U. Allen, III! Bad voting

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In reply to @stecks

@stecks re free time: I play minecraft to clear my mind. I suppose other people would take a nap.

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#hateIE #hateIE #hateIE #hateVML #hateIE

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potatoes-which-have-been-boiling-for-fifteen-minutes-are-unpeeled-realisation. #germanemotions

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In reply to @icecolbeveridge

@icecolbeveridge what was that idea for an aperiodical post you had last week?

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In reply to @icecolbeveridge

@icecolbeveridge both good ideas

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In reply to @treasa

@treasa crumbs! I just about remember that. Were they really that old?

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In reply to @treasa

@treasa ahhh, you mean these! kellscraft.com/BlackboardDraw…

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In reply to @treasa

@treasa that's a good prompt for me to save it in mendeley

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In reply to @DanielColquitt

@DanielColquitt that's actually a pretty good ratio for proofreading

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In reply to @vickytnz

@vickytnz don't do it! They're all on 4od for free!

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No matter how you kern it, burnspet.co.uk reads like a terrible description of what the product does

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In reply to @aperfect

@aperfect your mission: find this stellated dodecahedron in the church of San Pantalon mateturismo.wordpress.com/2012/05/14/los…

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eugh, the raphael.js API is yucky

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raphael.js: why is paper.path('a stupid string for stupid people') better than path.move(x,y).line(x,y)... ?

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In reply to @maanow

@maanow The solution is rounded incorrectly (or just down to 3 dp).

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In reply to @robrolfemaths

@robrolfemaths @maanow I was trying to avoid giving the answer in a tweet. Anyway, 30/31 is more like 0.9677419...

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In reply to @alisonkiddle

@ajk_44 are you familiar with Simon Tatham's portable puzzle collection?

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suddenly-remembering-you-do-have-chocolate-hidden-somewhere-after-all-exultation. #germanemotions

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aaurggg what's this madness? I had no idea minstrels were coated in hard icing

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Decided my walls need some new posters. This Gauss went a bit wrong, but I think I'm on the right track.

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Take 2: Turing!

1 favourite 3 retweets

In reply to @peterrowlett

@peterrowlett how are you getting on with Numbas? Have your students handed in that assignment?

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In reply to @stecks

@stecks all in good time

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The PM has a new app which constantly scans twitter. So let's get "short-term populism is no way to run a country, Mr Cameron" trending.

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In reply to @peterrowlett

@peterrowlett just checking up on it!

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In reply to @peterrowlett

@peterrowlett another question for the tiny-maths-surveys site I really need to make one day

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(actually though, stick some significance figures on the aggregated data and it's a decent idea)

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In reply to @jgrahamc

@jgrahamc thank you! My feelings exactly. The end had the structure of a Marvel superhero movie

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In reply to @KSCMaths

@KSCMaths that's a rather obtuse 65 degrees!

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just computing the volume of the Earth in pecks, nothing crazy. wolframalpha.com/input/?i=volum…--

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In reply to @alisonkiddle

@ajk_44 one of the newest ones, called "Pearl", is very good

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In reply to @KSCMaths

@KSCMaths best pun! And since it's a wrong angle, not a length, "not conformal" would be a better disclaimer. I'll stop being pedantic now

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In reply to @haggismaths

@haggismaths ahh, I had a really good one yesterday but I came in today to find the board wiped because of A Scandal.

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In reply to @aperfect

@aperfect prima!

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In reply to @Samuel_Hansen

@Samuel_Hansen I would if your server could stay on task for more than a minute!

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In reply to @haggismaths

@haggismaths alas not.

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In reply to @standupmaths

@standupmaths not even going to email you. Newcastle MathSoc - nclmathsoc.com/home

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In reply to @standupmaths

@standupmaths while I have your attention: will you be around for drinks before or after the Stockton show on Saturday?

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Would it be profitable to set up as a bounty hunter tracking down skiving contract workers? I'd call it A la Recherche des Temps Perdus

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In reply to @vickytnz

@vickytnz Denksführer!

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ok, who's going to buy me one of these? bbc.co.uk/news/education…

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In reply to @JPickford

@JPickford time for me to get back into game dev!

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In reply to @aPaulTaylor

@aPaulTaylor if you haven't already sorted it: can you post the sequence of numbers of lights? It's hard to tell from the video

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The marimba solo in the Fenwicks window song is driving me to violence

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Does anyone want to do something mathematical with me? RT @ScienceFest: The call for UK Maker Faire is NOW OPEN fb.me/VmHB7o9f

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In reply to @peterrowlett

@peterrowlett whatever twitter client you're using to send stuff into aperiodical is messing up the URLs since they got rid of the #! bit

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has anyone heard of IE, on first loading a page, calling JS object constructors before attaching their prototypes? Doesn't happen on refresh

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I also have a problem with the last text node attached to a VML diagram with raphael.js not showing up

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PS: in case it wasn't clear, #hateie #hateie #hateie #hateie

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In reply to @tanurai

@tanurai I've added Sheffield to the MathsJams map: maps.google.co.uk/maps/ms?msid=2…

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wow, vodafone make it cartoonishly hard to leave them.

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perfect timing. My phone's screen has just died.

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A little reminder: tomorrow at 7pm GMT I'll be hosting the first recreational maths seminar on google+. plus.google.com/events/cejb0m6…

1 favourite 3 retweets

In reply to @Dr_Lucie

@Dr_Lucie @standupmaths cutting-edge Teesside style. They need something to distract from the industrial horrors out the window

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notifications in windows used to be in the bottom-left, where no mission-critical buttons live. Now they're in the top-right, where Close is

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In reply to @decaf_unicorn

@fumbleweeds you'd love England. It's 46F here (if I've done the conversion right) and people think it's warm enough to go surfing.

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I have set up a little minecraft server for me and my bro. Twitterists, you can be my bro from another mo! DM me if you'd like to play

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Well, the Recreational Maths Seminar was fun! So glad the idea worked. Video up on the @aperiodical soon. Thanks to those who took part.

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In reply to @Htbaa

@Htbaa I meant bottom-right, yes.

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today's bug was caused by my stupid brain and not IE's. So, for a one-time only showing, I am obliged to use the tag #hateSelf

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In reply to @Rosalot

@Rosalot you're married? Congratulations!

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A big metal box in the lunch room marked "Health and Safety" is beeping. Twitter, should I run away?

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In reply to @jgrahamc

@jgrahamc in 3rd form Latin I remember reading about a dude who was pretty pleased with central heating

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In reply to @HilariousCow

@HilariousCow Guile theme! youtube.com/watch?v=sDQ5ep… I blame you for the fact I'll have this in my head the rest of the day

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New @TweetsofCushing phone number braggadocio: how many square numbers does your phone number have? Best in the office is 3625, which has 3

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Trying to get Fearne Cotton to endorse my new back scratcher design. I'll call it the Fearne Itcher.

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Why do computer scientists only ever get to second base?

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Productive day in the office. I think we've covered all possible π puns.

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In reply to @mountain_ghosts

@jcoglan lamely attempting to join in with a twitter joke as a service

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In reply to @Sa3eedo

@Sa3eedo reaching sixteenth base sounds like a fun time

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Discussing whether the set of yo mama jokes is countable. If I can make one about each of @TweetsofCushing's mum's ex-lovers, it isn't.

1 favourite 0 retweets

(that was yo mama joke ω+1)

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In reply to @standupmaths

@standupmaths did you make your venue bookings through Easyjet? Was Stockton sold as "Newcastle South"?

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Does the IRS have an Erdős number of 1?

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what do you call the dude in a rap song who fills in the gaps with uh-huhs and aww-yeahs? There is a word for it I know

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In reply to @HoeJodgkiss

@HoeJodgkiss I think it might be on the red button

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In reply to @HoeJodgkiss

@HoeJodgkiss (but I'm going to bed now so I don't even care if I'm lying)

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Woman and her mother, made up like panto dames, facing the wrong door to get off the train. "It's behind you!", I almost shout.

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talking to tech support for a phone company is like character generation in an RPG: keep rerolling until you get a good guy

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In reply to @jjaron

@jjaron now I want to play probabilistic quantum golf and get a hole-in-one-in-four

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maths: basically magic. zurich.disneyresearch.com/~wjarosz/publi…

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In reply to @aperfect

@aperfect haha, it's like sixth form all over again

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Just sent out the reminder email for Newcastle @MathsJam. (this is the reminder for other MathsJam organisers to send out theirs)

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In reply to @ColinTheMathmo

@ColinTheMathmo Asking the University of Waterloo is out of the question?

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In reply to @ColinTheMathmo

@ColinTheMathmo coincidentally, I gave a talk on zero-knowledge protocols recently which used three-colouring graphs as an example

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In reply to @ColinTheMathmo

@ColinTheMathmo here: checkmyworking.com/2012/10/slides… (warning - posh modern browser-based slides which you might have trouble with)

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In reply to @plusmathsorg

@plusmathsorg the brackets on the last equation aren't balanced.

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Unexpectedly vegetarian dinner after I forgot to cook any of the three kinds of meat I just bought

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This'll be right up @standupmaths' street: a book about snowflakes, with accurate diagrams, from 1863. openlibrary.org/books/OL709037…

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen top tagging.

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In reply to @Samuel_Hansen

@Samuel_Hansen I assume that signing that as a foreigner would be counter-productive.

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In reply to @Samuel_Hansen

@Samuel_Hansen oh. I thought I could remember foreigners being encouraged to sign the open access one.

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Dear Diary, I made terrible nachos today. Tonight I'll dream about the nachos I could've made. And it'll make me sad.

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So that's what windows 8's BSOD looks like. Wasn't expecting to see it so soon.

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In reply to @CardColm

@CardColm @pickover did you see it was mentioned on the last episode of QI?

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In reply to @sfh10

@sfh10 my opinion on STEP maths: I would've loved some proper help with it when I did it.

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In reply to @CardColm

@CardColm oh, I thought you would've heard of it at least. It's a *fantastic* comedy panel show presented by Stephen Fry

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In reply to @vickytnz

@vickytnz nope. Nope nope nope. No way no how.

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In reply to @miclugo

@madcaptenor it isn't even our first one. @MarcusduSautoy presented one a while ago. I've forgotten what it was called.

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In reply to @miclugo

@madcaptenor you've made me go to IMDB now. It was called "Mind Games", and wasn't just maths. imdb.com/title/tt035207…

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Already in @MathsJam mode. Students wanting numeracy help tomorrow might learn about woollen applications of group theory instead.

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In reply to @alisonkiddle

@ajk_44 @samholloway I would follow Sam, but he's following exactly as many people as he's being followed by, and it's a triangular number!

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Today's the day when everyone's @-replies end with "will you be at MathsJam tomorrow?"

0 favourites 2 retweets

In reply to @mathsinthecity

@mathsinthecity numbergossip says it's evil, deficient, and untouchable.

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt "Lagrange Multiplier" has always sounded to me like a combo move in Maths: The Game

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge ok, Monday, but I don't get the reference

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There's a petition to sign if you think the elected PCCs are a bad idea: epetitions.direct.gov.uk/petitions/41806

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I did not know about this! Multiple user profiles for debugging in Chrome plus.google.com/u/0/1151336532…

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In reply to @stecks

@stecks Pudsey's fundraising powers don't stem from his injuries! And even if there's a link, it hasn't been shown to be monotic increasing!

0 favourites 0 retweets

In reply to @stecks

@stecks oh bum. I thought I was so clever getting that in exactly 140 characters and I missed two from "monotonic".

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In reply to @bluecombats

@bluecombats a pair of scissors usually comes in handy.

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looking up names for a randomised question. "Blossom. Meaning: Flower Blossom"; "Bluebell. Meaning: Grateful". WAAAAAA?!

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In reply to @stecks

@stecks @aperiodical @SciencePunk what to call it?

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In reply to @SciencePunk

@SciencePunk @stecks @aperiodical Twiterator? @ccumulator?

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Talking about education resources conversation template: "Well, (organisation X) were doing good stuff, but they've been bought by Pearson)"

0 favourites 1 retweet

Did you know that the very first MathsJam took place in Holland in 1690? rijksmuseum.nl/nl/collectie/R…

0 favourites 1 retweet

In reply to @mathsatschool

@mathsatschool oooh, glue, I didn't think of that! I do have cards and string though, so the union of our packs probably covers everything

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OK, #mathsjam, what have I forgotten? Most of what I own is in this bag.

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Right then. To Crewe! #mathsjam

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In reply to @MathsJam

@MathsJam what's yellow and equivalent to the axiom of choice? #mathsjam

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Why is the contour integral around western Europe zero? #mathsjam

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there aren't many dirty logicians: “Kleeneliness is next to Gödeliness” #mathsjam

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In reply to @charliesgames

@charliesgames you should have a dental hospital nearby

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An easy way to get mathematical symbols to paste into tweets: unicodeit.net #mathsjam

6 favourites 3 retweets

I had no idea mcdonalds got so busy on Sunday evenings

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I'm back at my home. MathsJam was great.

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Allen Knutson used to have a webcam pointed at a whiteboard in his office. Its last image is of his hand taking it away math.cornell.edu/~allenk/webcam…

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In reply to @standupmaths

@standupmaths one of the Bernoullis has created a mechanism to help you draw the infinity symbol properly plus.google.com/11620307109909…

0 favourites 0 retweets

In reply to @samholloway

@samholloway not too many records on sale these days. It's a fairly even split between chintzy vintage and semi-professional photographers

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 Mockus, mayor of Bogota, is my hero: en.wikipedia.org/wiki/Antanas_M…

0 favourites 1 retweet

@nulibsage that statistic doesn't make any sense.

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@nulibsage more likely a hard-working press officer. I have a collection of gloriously overstated research press releases

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@nulibsage actually, I have a question for you! Yesterday I was told of the existence of the Wallis collection. How do I see it?

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In reply to @icecolbeveridge

@icecolbeveridge just putting that at the end of the URL ojp.nationalrail.co.uk/service/timesa… works

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I'm thinking of starting a series on badly overstated popular maths. I would call it poopular maths. Today's example: slate.com/articles/healt…

1 favourite 2 retweets

1) claims animals "solve" maths problem. 2) describes problem as "wildly complex", but not in the technical meaning of the phrase.

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3) claims mathematicians "discovered" basic fact about graphs. 4) repeats decade-old press release claiming a human has "solved" TSP.

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5)finally and worst of all, gives no hint that "hard" for mathematicians has a very different meaning to "hard" for regular people (or bees)

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A person called Dana and a person called Daina have favourited my last tweet. I assume one is the imaginary complement of the other.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge yes please. Put it in the system!

0 favourites 0 retweets

Newcastle @MathsJam is tomorrow, 7pm at the Charles Grey pub (outside Monument metro station). All welcome, just bring your brain!

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did everyone suddenly agree that the past participle of "lead" is no longer "led"? What's going on?

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In reply to @monsoon0

@monsoon0 I saw "lead" in a newspaper (though I think it might have been the Grauniad) recently, and I've seen it in several articles since

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing where? The top post is still the prisoners

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing now so do I. Most peculiar. Gavin says you might be ill. Are you?

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths 'lead'

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith it's WHAT?! I'm not prepared! HOW WILL I DO ANYTHING ELSE TODAY?

0 favourites 0 retweets

I've lost my rather expensive bluetooth headphones. I'm quite displeased.

0 favourites 0 retweets

'...the use
of "percision" as defined in the SQL specification can be confussing.' I agree, SCORM spec. I am very confussed.

0 favourites 0 retweets

In reply to @samholloway

@samholloway there's a hill in Cambridge?

0 favourites 0 retweets

seeds in clementines: basically the worst experience in food

0 favourites 0 retweets

picked my nose, unleashed a pint of blood. Will never pick my nose again.

1 favourite 0 retweets

Helpful definition of notation from the SCORM 1.2 spec: "If not preceded by a minus sign, the number is presumed to be positive."

0 favourites 0 retweets

No mention of required precision, base system, or which character should be used for the decimal point. Hooray!

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Found this little curio hiding in the school library. Unfortunate surname, though.

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths so what does 2,000 Rubik's Cubes being solved at once sound like?

0 favourites 0 retweets

Some lovely geometric wallpapers designed for iPads simoncpage.co.uk/blog/2012/03/i… (note: many other devices are capable of displaying bitmaps)

3 favourites 0 retweets

The @aperiodical is looking dangerously well-organised at the moment.

0 favourites 0 retweets

In reply to @mathsinthecity

@mathsinthecity @icecolbeveridge to paraphrase JFK, we have nothing to fear but vier itself, so 4 should be the sole terrifying number.

0 favourites 3 retweets

"I genuinely love Internet Explorer's debugging tools. They always help me quickly get to the bottom of any problem." - nobody, ever.

0 favourites 1 retweet

In reply to @mjdominus

@mjdominus oh well. Three letter President: close enough.

0 favourites 0 retweets

Testify! RT @HilariousCow: While there are no Americans around to see this, I'm just gonna say it: I hate America's freedom. Repatriate!

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths thank that person from me. Typewritten maths is a terrible artefact of the mid-20th century.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett is it constructive to rant about someone's mistakes at length? I think twitter is ok because it's ephemeral

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In reply to @peterrowlett

@peterrowlett I also meant "permanently"

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In reply to @benjamintormey

@BenTormey Get a pair of boxfresh. They last so much longer than Converse.

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts top idea! For lunch, or breakfast?

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths I was planning on using "Chum-in-Chief" but @stecks wrote the article. Which do you prefer?

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts ahhh, I need to get the metro at 11, but you've stirred beachy feelings in me. Mind if I join you?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge @standupmaths would you believe I was literally about to tweet that myself before I saw Col got there first?

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Either chewing bubblegum in an otherwise quiet office should be illegal, or it should be a valid extenuating circumstance in murder cases

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In reply to @altweet_pet

@altweet_pet what's the record he's attempting to set?

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Telling me there's nothing to watch on telly.. I have watched Hot Shots! enough minus infinity times.

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Our table number is "a snowman doing a painting".

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In reply to @helenarney

@helenarney @standupmaths is that Matt's snowfake-fighting superhero costume?

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getting back to sleep is exceedingly hard with this hipster nonsense on Peter Day's World Service programme.

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Does anyone else own Running with Rifles? It's a good game: modulaatio.com/runningwithrif…

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Twin prime time! 11:13 means PARTY LIKE IT'S A REALLY OBSCURELY INTERESTING SIXTY SECONDS

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In reply to @robotmaths

@AdamCreen really? How so?

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In reply to @robotmaths

@AdamCreen oh, you mean there are 11 more prime minuteses. I use "twin prime" to mean two primes (n,n+2)

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In reply to @daveowhite

@daveowhite if you apply yourself, you can give back 60,000 portions as an Easter present (we did the sums a while ago) aperiodical.com/2012/05/grow-y…

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In reply to @daveowhite

@daveowhite we didn't dare work that out. Not much longer.

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In reply to @jjsanderson

@jjsanderson @elinoroberts well, if you live in Tynemouth, this is what happens. You'll have opinions about on-street parking next

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In reply to @jjsanderson

@jjsanderson @elinoroberts depends. Which way round the metro do you go? If you go via Gosforth, it's already too late

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Using bootstrap. I give up. Web design is not for me.

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In reply to @monsoon0

@monsoon0 do they have any of that special chalk that is incredibly hard to get outside Japan?

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They're selling what now? Coming soon: Epistemologue, your one-stop-shop for mail-order trivialities.

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This is a bit iffy, isn't it? thejc.com/lifestyle/how-…

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Anyway, don't buy a theorem or a symmetry group, get yourself a bespoke artisanal hand-crafted integer for free brooklynintegers.com

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And lo, with a lightning-quick "works for me" did he smite the bug report, banishing it forever to the cursed land of Won't Fix.

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In reply to @DanielColquitt

@DanielColquitt nah, sorted it out.

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In reply to @numberphile

@numberphile now do base 4! checkmyworking.com/2012/01/the-ac…

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In reply to @mountain_ghosts

@jcoglan stacked Unicode diacritics. stackoverflow.com/questions/9310…

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In reply to @mountain_ghosts

@jcoglan sad, because as yet there's no helpmyeyesareburning.stackexchange.com

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In reply to @standupmaths

@standupmaths @MathsJam do we have MathsJams sufficiently far apart to do some geometrical calculations?

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When I close my front door I can either turn left for the metro station or right for the beach. Sometimes it's very hard to turn left.

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Thought I had more eggs. Sad little omelette :(

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omelette saved with god's own ingredients: bacon and paprika!

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In reply to @HoeJodgkiss

@HoeJodgkiss that's the most coherent Newcastle transfer punditry I've ever seen. You should work for the Chronicle, you should.

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"Works at: Team Leader at Brewers Fayre". "Works at: cannabis farm lol". I'm not sure which of my mid-range relatives is more underwhelming

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Newcastle @MathsJam November 2012 Recap: checkmyworking.com/2012/11/newcas…

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suddenly my flat smells really strongly of eggs. Where is it coming from? Am I in danger? Aaaaaaa going to be killed by Chuckie Egg aaaaaaaa

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oh HANG ON, I just ate an omelette. Panic over.

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and why did I go for Chuckie Egg instead of Dizzy? Have I ever even played Chuckie Egg? How do I know about it? EGGSTERNAL INFLUENCES

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In reply to @mountain_ghosts

@jcoglan in something like `<a href="[%=str%]">`, where am I asserting that `str` is a URL, or is that not what you're getting at?

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In reply to @ColinTheMathmo

@ColinTheMathmo yeah, I thought that was it, but I couldn't remember if Ji had given a different variation

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Soupremum. Simpleggs. Identitea. All on the menu at my new mathematical bistrho.

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In reply to @mountain_ghosts

@jcoglan establishing context in arbitrary environments: "parse ALL the strings?"

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In reply to @elinoroberts

@elinoroberts yes! Do it!

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In reply to @MathsJam

@MathsJam Newcastle is not happening in December

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In reply to @Bishnavitch

@Bishnavitch yeah, but the hologram Compaq at CES last year was quite crass. #notoriousbigblue

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In reply to @jjaron

@jjaron @igblan trace a line from the bit of the hook socket facing you, along the surface. You end up on the other side.

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In reply to @jjaron

@jjaron @igblan yep, I had the same problem

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This nexus 4's screen is so beautiful, I'm going to weep openly

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put cocoa in milk before milk was hot. Hyperfailure.

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In reply to @helenarney

@helenarney that's not my mane!

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In reply to @helenarney

@helenarney unless you were already going for that double-pun, in which case I apologise

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In reply to @helenarney

@helenarney @andy_tea that's OK, I know when to swallow my pride.

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cooking for slimming world dieters tonight. The recipe they have given me is like a real recipe, minus the ingredients.

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In reply to @pkrautz

@pkrautz my German isn't good enough. It looks fairly innocuous; what's wrong?

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December

In reply to @monsoon0

@monsoon0 but all chalk is made of ground-up shells!

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In reply to @standupmaths

@standupmaths @Dr_Lucie trees are old hat. I'm going with a Christmas treap this year

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I'm hosting another recreational maths seminar tonight, about "seven staggering sequences". 7pm GMT, Google+: plus.google.com/events/co36qi8…

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In reply to @outofthenorm2

@outofthenorm2 ooh, that'll go nicely with something I've got saved for the next aperiodical round up. Ta!

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In reply to @elinoroberts

@elinoroberts @gjchocolatier it makes me sad to think of all the time you haven't known that. Have you tried the brownie?

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Join me in 5 minutes on google+ for the @aperiodical recreational maths seminar: plus.google.com/events/co36qi8…

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With a puzzle by me, CP! RT @aperiodical: Post: Puzzlebomb - December 2012 wp.me/p2cimT-1Fx

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Oh no, youtube has remembered that day I spent watching Oesch's die Dritten videos. My recommendations page is nonstop yodels.

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After posting basically nothing all last week, I fear we may have overdone it with "sort your mess out Monday" at the @aperiodical.

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If I see the Newcastle University Login Gateway one more time...

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In reply to @StudentsNCL

@StudentsNCL @NU_ITservice I don't think there's anything wrong, I just have to go through it each time I go to any of the many sites I use

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David filled in a questionnaire online and it turns out I'm the best dad in the office. Ladies.

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In reply to @mountain_ghosts

@jcoglan not a WordPress apologist, but it'll be a plugin causing the crashes. Because of the unique way php works, that's possible!

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In reply to @mountain_ghosts

@jcoglan some combination of turning plugins on and off, and turning on PHP debug logging. Prepare to go back to 90s debugging methods

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In reply to @mountain_ghosts

@jcoglan there might be a plugin that adds a "don't show comments" flag to posts and modifies the get-post-comments function

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Just had a filling done. My cheek is still numb, but my tooth absolutely knacks. Do I need to go back?

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In reply to @TweetsofCushing

@TweetsofCushing don't you dare

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aaargrggrg python why is installing pip on windows still such a hassle? Just include it with the standard distribution!

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Today @TweetsofCushing is looking for the person with the most of one letter in their name. Currently top: Reece Burgess-Creen with 6 Es

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where's the GIF for when someone does a test with string operations instead of writing a proper routine to do what they mean?

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Useful javascript library implemented as a jquery method. My anger level has risen to 32 milli-@jcoglan.

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie Sightseers tomorrow?

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie that would also be a good choice for me, but it doesn't star Alice Lowe, so...

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In reply to @TweetsofCushing

@TweetsofCushing !!!

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Trawling amazon for hours looking for a replacement for the lost headphones you spent hours choosing last time. #autismproblems

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there's some pretty lovely music on @laRadioNova at the moment

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oh great, so they put some 80s nonsense on just after I said that.

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie sightseers 2020

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If 100 people star JSXGraph on github, it can be hosted on CDNJS: github.com/jsxgraph/jsxgr…

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In reply to @jamesgrime

@jamesgrime first thing I noticed on audible was this Car Talk compilation, I assume of the puzzles they often pose mobile.audible.com/productDetail.…

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In reply to @alisonkiddle

@ajk_44 I don't know how you should celebrate, but you should do it at ten to nine.

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Well I'm *trying* to write a really good post for the @aperiodical today but the uni wifi isn't helping

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Eureka! Santa only visits one house on Christmas Eve, but infinitely many universes, each containing a different Santa, collapse at midnight

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Is it a special autism superpower to spot typos in a page of text at a glance, or does it happen to everyone?

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Because I've been editing a very long post and spotting typos in very unusual words just as I scroll past them, not even looking for them

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Teehee! beautifulcentury.tumblr.com/post/371080808…

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In reply to @helenarney

@helenarney yes yes very funny, intentionally misunderstood. Now where's this bar? I'm a huge sporks fan.

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If there isn't already a travelator company called Thousand Yard Stairs then I am going straight to Companies House first thing tomorrow

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the address of the University of Athens' maths department is noether.math.uoa.gr. Because they couldn't name a Greek mathematician?

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In reply to @alexbellos

@alexbellos whoops, we both made 3d-printing christmas present posts today

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There's a version of HyperRogue for android! play.google.com/store/apps/det… FRABJOUS DAY! via @mathpuzzle

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@Nathan1123 @MuseGarden I used that page once when in a beds shop with a friend who didn't know what size his bed was!

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@Nathan1123 to be fair, he'd just moved in to a rented flat and British bed size names are mental.

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Thanks, textbooks! thankstextbooks.tumblr.com

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In reply to @My_Metro

@My_Metro I'm on one of the new trains, and the lights on the wrong side of the carriage lit up when we stopped. Better look into that!

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In reply to @elinoroberts

@elinoroberts the first shop to produce an app which puts your shopping list in order for a shortest traversal will earn my patronage.

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In reply to @matheknitician

@matheknitician posted! Thanks for letting me know

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Tonight, we dine... quite well!

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In reply to @stecks

@stecks @aPaulTaylor you know, I wasn't going to have it but then I thought since I'm tweeting it someone might complain if it wasn't there

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Step 1: cook double meal, so you can have leftovers tomorrow. Step 2: forget you finished the cling film yesterday. Step 3: food bags!!!!

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In reply to @DanielColquitt

@DanielColquitt @ben_nuttall it's the real thing - pause it, maximise, and draw a pattern

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In reply to @MouldS

@MouldS @dan_physio @standupmaths hey, that's just the first few digits! "Approximation to pi pie" doesn't sound very appetising

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Going to Tynemouth market to look for a secret Santa present. Must make a big effort not to buy anything too ironic

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Worst trendy name so far: "Gosforth bakehaus".

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Alas, the pewter cowboy hat chip'n'dip tray is outside my budget

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youtube's algorithm to make a video unshaky leaves it looking really trippy instead

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There was a horrific animatronic koala for sale at the market today. I should've bought it. I didn't. Got to live with that.

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In reply to @Bishnavitch

@Bishnavitch I didn't dare. I was scared of a Ringu type situation

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In reply to @Bishnavitch

@Bishnavitch I'll see if it's there again tomorrow

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In reply to @outofthenorm2

@outofthenorm2 haha, what are you thinking?

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In reply to @outofthenorm2

@outofthenorm2 go for it

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In reply to @HilariousCow

@HilariousCow do a flamboyant loop on the letter O

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The internet has taught me to love humanity. Giant Pants of the '30s: giantpantsofthe30s.tumblr.com

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Went back for the eldritch koala. It's been sold! Life is not worth living any more ʕ •ᴥ•ʔ

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In reply to @stecks

@stecks are The Sinks a new fraternal society, like the masons or the rotary club?

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In reply to @mountain_ghosts

@jcoglan pandoc turns most things into most things

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In reply to @mountain_ghosts

@jcoglan though if you're writing a book, learn LaTeX.

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In reply to @mountain_ghosts

@jcoglan pdflatex comes with any latex distribution. On ubuntu, try tex-live

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In reply to @mountain_ghosts

@jcoglan all these variants exist because almost everyone, after using TeX for a while, thinks "I can do it better!"

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In reply to @mountain_ghosts

@jcoglan the stuff they have in common is basically all you need, so just stick with TeX-live and don't try to be clever with it

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In reply to @mountain_ghosts

@jcoglan TeX is like the English language: nobody uses it perfectly, there are a million ways to say anything, ...

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In reply to @mountain_ghosts

@jcoglan and far too many people who should know better hold very strong opinions about tiny aspects of usage

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In reply to @Bishnavitch

@Bishnavitch true facts

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haha hooray! stackoverflow.com/questions/2624…

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In reply to @DainaTaimina

@DainaTaimina I think that's actionable libel

1 favourite 0 retweets

In reply to @divbyzero

@divbyzero oh man, I need to get into control systems! There could be a "Perfect timing" algorithm

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In reply to @Dr_Lucie

@Dr_Lucie 197th.

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general lazy evaluation was too beautiful a dream for someone as uninterested in proper type analysis as I. Oh well...

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In reply to @standupmaths

@standupmaths not impossible: the other hemisphere could be really crazy

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @standupmaths I don't get it

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Can't decide if I'm wasting my life or living it exactly how I want. somethingorotherwhatever.com/interesting-ti…

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In reply to @WWMGT

@WWMGT c) a quart of pounds

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So, ladies and gentlemen of the Academy, in summary: PHP is just the worst and I propose that we throw it into the Sun

2 favourites 2 retweets

Hooray, futurama's on! Oh no, it's Jurassic Bark. Sad evening :'(

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In reply to @sxpmaths

@sxpmaths someone else's code I depend on was using '!empty($x–>p)' to test if $x->p is set. Which fails when it's the string "0".

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Please tell me I'm not the only one who gets angry about adverts recorded in NTSC

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oh snap! Today's Dinosaur Comic says Santa collapses realities to deliver presents! qwantz.com/index.php?comi… The evidence mounts!

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Favourite picture of the day! flickr.com/photos/nationa…

1 favourite 2 retweets

In reply to @jhylmb

@jhylmb haven't tested it, but it should be possible

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Oh god! All these Top 50 Tracks of 2012 lists mean I have to listen to Gotye again. #whyhastthouforsakenme

1 favourite 1 retweet

In reply to @henryseg

@henryseg were you paid for that article? It would cost me £30 to read if I didn't have a uni account

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In reply to @henryseg

@henryseg super! It's a good article.

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In reply to @aperfect

@aperfect fog on the Thames is all them's all them's, fog on the Thames is all them's.

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In reply to @aperfect

@aperfect oh em gee I am going to start a faux-ironic hipster band called Londisfarne. We will gig exclusively in corner shops

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In reply to @Electrokittie

@Electrokittie good intel. I will wrap up warm when I head in from the balmy coast

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whaaaaaaat. Ctrl+Alt+Tab in windows shows the switchy-window thing even after you let go of the keys.

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hey guys it's 10:10. Duodecimalists gonna hate.

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#inexpertlycopiedpunchcartoons

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I felt quite bad about the @aperiodical's visitor numbers until I looked at the Mathematical Intelligencer's circulation figures

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In reply to @jamesgrime

@jamesgrime true fact. I got a good one of you a while ago from the @numberphile Rubik's Cube video: aperiodical.com/2012/09/rubiks…

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In reply to @mountain_ghosts

@jcoglan CET was the 12th time zone to have 12:12:12 12/12/12. Germans are the chosen people after all!

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In reply to @outofthenorm2

@outofthenorm2 oh, you could've said! I'll have a look

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In reply to @ben_nuttall

@ben_nuttall "Although braggadocio doesn't come naturally to most computer programmers, ..."

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No chocolate in the kitchen. Spend 10 minutes checking the Secret Chocolate Locations, or go to the shops?

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Right. Let's do some things to things until there's food to eat. #homecookin

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In reply to @outofthenorm2

@outofthenorm2 oh, NOW I get that pun! Sorry for changing the title to an inferior one

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In reply to @elinoroberts

@elinoroberts accidentally swallowing a pea is big trouble: you have to swallow a fly to get it, then a frog to catch the fly, ad infinitum

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Having a little rage about the Moodle SCORM module. Not a single line of the code is good.

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In reply to @vickytnz

@vickytnz it's free, which is good, and open-source, so I can see *why* it's buggy. We're on Moodle because BB has broken SCORM support

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In reply to @vickytnz

@vickytnz Moodle 2 is considerably less bad than old Moodle. It's barely tolerable now, but still lots of really annoying and bad things

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In reply to @vickytnz

@vickytnz yeah well, it's for academics :P

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"Hm, how shall I implement this hierarchical data structure, with well-defined elements and values? I know! Strings and regexps!" #hate

0 favourites 1 retweet

I don't know how it's possible to write this much bad code without Nature itself reacting violently against you.

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If a student handed this in as homework I wouldn't mark it wrong. I'd encourage them to join al qaeda or the communist party or something

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1) they'd make MI6's job much easier; 2) no self-respecting terrorist would want to be associated with them, and would lay down their arms

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In reply to @peterrowlett

@peterrowlett just remembered your Numbas email. Will do that later today.

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A scotch egg and a frijj. I operate on the frontiers of cuisine.

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Please support the kickstarter for my self-published transvestite medieval epic, "The Song of Roland's Dirndl"

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Trying to synopsise that Jim Carrey film where he's a pet detective, but every time I try I get the plot "farce about Ace"

1 favourite 0 retweets

well! Since nobody wants to go christmas shopping with me, I think I'll go for a walk round Tynemouth instead

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HAHAHA I AM NOT A FAMILY I AM A SINGLE MAN!

1 favourite 0 retweets

In reply to @treasa

@treasa believe it

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Off to seek my fortune in the tatatoria of Newcastle upon Tyne.

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If you spoonerise "Hooke and Wren" the number of bird names increases from one to two. I'm pleased by this but don't know what to do with it

1 favourite 2 retweets

a Kinect physics game where you stack boxes but it's two-player and you each control the other's arms

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths you are this guy youtube.com/watch?v=yX_AHV…

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This is why I keep trying to introduce German as a second language in the department youtube.com/watch?v=YcMT39…

1 favourite 1 retweet

I keep forgetting it's the office christmas lunch today and making plans for work to do and food to eat.

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean if you keep calling that a biscuit Ed Miliband might try to integrate you

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In reply to @brittneybean

@brittneybean but it does look VERY tasty. What's going on there?

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing I told you I don't have a suit

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In reply to @TweetsofCushing

@TweetsofCushing I even forgot to wash my jumper so I'm going to look extra scruffy

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In reply to @TweetsofCushing

@TweetsofCushing proving to whom?

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In reply to @TweetsofCushing

@TweetsofCushing that reminds me - I tried to prove the same facts to your momma but she kept asking me if there are any even primes

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In reply to @JPickford

@JPickford "The games has jumped".

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Who hates standing on the metro? CP hates standing on the metro. Is it true? I do I do I do-oo!

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In reply to @helenarney

@helenarney or you're living in Newcastle 6 years ago

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Go ahead. Spell it "chaise lounge". Make my day.

1 favourite 2 retweets

Your reminder that there's no Newcastle @MathsJam tonight.

0 favourites 2 retweets

In reply to @HilariousCow

@HilariousCow just play Just Cause 2 instead.

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In reply to @HilariousCow

@HilariousCow I played it on the xbox, so don't know about that.

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In reply to @mountain_ghosts

@jcoglan #unhelpfulneckbeardadvice?

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In reply to @mountain_ghosts

@jcoglan but the problem with instagram isn't 'we own the servers', it's 'you're not the one paying our salaries'.

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That sneeze crept up on me completely unnoticed but now it's over, I feel like I've needed to do a sneeze that big for a long time.

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#catarrhsis

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KABLOOM! OUTTA THA PARK AND INTO THE STREETS OF NEW YORK CITY!

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In reply to @amazingradio

@amazingradio I am very much enjoying "Tyrannosaurus Rex For Christmas". It's my new favourite Christmas song.

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it's 12:36! Dance about like you've got all your divisors within easy reach.

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We're making good use of our last proper work day by playing LAZA KNITEZ lazaknitez.com

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"Cost-per-gigabyte is down more than 300% in three years". computerworld.com/s/article/9234… #what

0 favourites 1 retweet

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @MathsWorldUK I meant to catch someone at big mathsjam - would anyone like to write about the plans for @aperiodical?

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @MathsWorldUK yes! It would be good just to get the name out, wouldn't it?

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In reply to @mountain_ghosts

@jcoglan I'll go with: generics work on objects, and ints aren't objects.

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In reply to @miclugo

@madcaptenor order a single box of chalk. I haven't dared to do it yet and I've had prime for years

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Buying stock for my new kids' clothing shop, Newcastle upon Tiny.

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In reply to @jamesgrime

@jamesgrime they're very different films, but I agree.

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In reply to @peterrowlett

@peterrowlett quick! Make a Klein bottle!

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Watched a video from the ISS. Moved to poetry: I love the Earth / and all the people on it. / You could even say / it's my favourite plonet

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In reply to @aperfect

@aperfect which company is it?

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In reply to @aperfect

@aperfect that isn't even a real company.

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In reply to @aperfect

@aperfect hah, their homepage has a megabyte of stock images

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In reply to @mutedestro

@mutedestro @MathsJam sadly it looks like there isn't one near you - maps.google.co.uk/maps/ms?msid=2…. Nothing to stop you starting one!

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Last night I dreamt about a really fast slug! Is today the day we rethink our metaphors?

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In reply to @standupmaths

@standupmaths so clearly we need to start a campaign to register Unicode codepoints for common English words

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This Christmas card's so charming I wish I could send it to myself.

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In reply to @daveowhite

@daveowhite Monetize your front window. Monetize your beard. Monetize smalltalk.

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In reply to @GhostMutt

@GhostMutt which cards do you have turned on? I just have the weather and football scores. Is there something more to it I'm missing?

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In reply to @TweetsofCushing

@TweetsofCushing proof or it isn't true!

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In reply to @TweetsofCushing

@TweetsofCushing and by "quintics" do you mean fifth powers?

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This is how I roll

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Pick a natural number N. Find p_N, the first prime which is the difference of Nth powers. $\ln(p_53)/53 = \ln(p_59)/59$, to 10 dp

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In reply to @C_J_Smith

@C_J_Smith ternary decimal?

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In reply to @C_J_Smith

@C_J_Smith next question: 0,1,2 or +,-,0 ?

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In reply to @C_J_Smith

@C_J_Smith my least favourite ternary representation

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-.. .- ... .... -.. --- - -.. --- -/-.. --- - -.. .- ... ..../-.. --- - -.. --- - -.. --- -/-.. --- - -.. --- - -.. --- - -.. --- -

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@DanaKazim did I get it right?

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@DanaKazim fantastic

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gosh it's grim outside!

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It's pretty ridiculous how long it take windows 8 to show the task manager

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I'm playing my "justify my obnoxious prejudices with pop psychology I read in a non-scientific outlet" card. theatlantic.com/business/archi…

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Whenever I hear about economics, I think of this scene from futurama youtu.be/DdRC8ljHtCQ?t=…

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"a third of Men will get their Christmas presents from a service station" - according to a study in a service station on Dec 24th last year?

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Pretty much certain you can do better, Woman's Hour

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Sorry, it's You and Yours, not Woman's Hour. Disappointment levels back to normal, and I need to look at my watch

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The only paper I could find to pad this present with was pages from the LRB. #truestoriesfromupmyownbumhole

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I think this year I can do my present wrapping in two or fewer ragequits

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In reply to @mountain_ghosts

@jcoglan isn't it weird how when the economy's good the poor suddenly start trying harder?

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In reply to @HilariousCow

@HilariousCow did you have a gravis gamepad? When I saw the graphic of it in the wolf3d options I wondered how it could ever be suitable

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Today I learned that a <redacted> needs about 3cm more wrapping paper than you think.

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In reply to @outofthenorm2

@outofthenorm2 Please finish your bees post!

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You don't wrap presents with the wrapping paper you want, you wrap presents with the wrapping paper you've got. - Donald Rumsfeld

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oh, so Big Society was always meant to be a pejorative, like Big Tobacco or Big Pharma.

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why do journal publishers think it's a good idea to make supplementary material a separate PDF from the article?

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Need to eat all the food in the flat before going home for Christmas. My stomach is being marvellously cooperative

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Remember, HE KNOWS plus.google.com/photos/1113006…

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I'm pretty pleased with my Christmas cards this year flickr.com/photos/christi…

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I think Father Christmas might be my favourite thing to draw

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In reply to @DanielColquitt

@DanielColquitt you've completely inverted the "go away and read a book while your computer is doing something" meme

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In case you haven't experienced windows 8 yet, this guy explains what's wrong: youtube.com/watch?v=WTYet-…

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I've owned hotmathematicians.com for a year and done nothing with it. It expires in 3 days. Has anyone got any ideas?

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(The original idea was to have christian@hotmathematicians.com, so my arXiv submission could be from the "Institute of Hot Mathematicians")

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In reply to @ColinTheMathmo

@ColinTheMathmo but why? I'm not doing research any more, so no opportunities to use it forthcoming

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In reply to @ColinTheMathmo

@ColinTheMathmo selling unused domain names is on my list of Terrible Internet Behaviours. If I let it expire, whoever wants it can have it

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In reply to @walkingrandomly

@walkingrandomly I thought that was a good idea and then I saw it was by Stardock. I've learnt my lesson with them

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I FORGOT TO RETURN A LATE BOOK TO THE LIBRARY AAAAAAAAAAA

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In reply to @walkingrandomly

@walkingrandomly what I'm doing is: close eyes, press windows key, type program name, press enter, open eyes. It's almost the same

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In reply to @vickytnz

@vickytnz were you around when it was Belle and Herb's? Times were better then

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In reply to @peterrowlett

@peterrowlett literally LOL

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Leo says I have no neck. Vicious fibs.

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I'm in Windsor! The air smells funny down here

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Such pleasant people down here

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There isn't a craft supplies shop in Windsor?! Surely I'm mistaken.

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In reply to @apontzen

@apontzen @standupmaths did you work that out by hand, or did you use a script like this: gist.github.com/4368409 ?

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I'm pretty ecstatic about how this 80k file won't upload to my ftp server over this flat's wifi

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Let's see if giffgaff throttle ftp connections as well...

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hahahaha my phone's connection is so much ridiculously quicker than this Zen broadband

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I've added a question to The Aperiodical's Very Important Mathematical Survey about how you eat corn on the cob: survey.aperiodical.com/question/50d81…

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In reply to @alimcg86

@alimcg86 chin up, McGlen!

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WHERE ARE ALL THE FILMS? I don't want to watch Open All Hours, I want a film!

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In reply to @standupmaths

@standupmaths @Dr_Lucie the dog started melting when he was near the fire. That's way closer to physical realism than I was expecting

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In reply to @samholloway

@samholloway there definitely used to be one!

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In reply to @monsoon0

@monsoon0 mega jealous!

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Pretty unexpectedly radical present

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I'm going to see Scrooged! Channel 4 now. I'll have depleted my Christmas film to-watch list by at least one this year.

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Round 2. Nobody else wants leg! Excellent crimblus

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Scouting for locations for my new concept café with a chess board at every table, "En Croissant".

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Try saying "tuna mayo jacket potato". It's wonderful, like the start of a beat poem about my favourite foods.

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Congrats to @TweetsofCushing for getting his first integer sequence accepted by the OEIS: oeis.org/search?q=Cushi…

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In reply to @standupmaths

@standupmaths you can keep going with Step 4: work out how many different patterns you can make by swapping pieces of the same shape

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Hiring bar staff for my new underground opera hall, "Grotto Voce"

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In reply to @JohnAllenPaulos

@JohnAllenPaulos it's a vanity publisher, not a real journal!

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In reply to @mountain_ghosts

@jcoglan there's probably an emacs command 'Cmd-a-t untweet cheap pun'

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Beginning to fear I've been trafficked to Slough. Will I ever see my beloved Northumberland again?

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What a lovely book behance.net/gallery/Where-…

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I can't decide if Planet 51 (channel 4 right now) is alright or terrible

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In reply to @Rosalot

@Rosalot I'm having trouble accepting Dwayne 'the Rock' Johnson as a cowardly ginger man

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Etymonline's etymology of 'omelette' is basically to wave the "nobody knows" card: etymonline.com/index.php?allo…

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A marvel of the last age of austerity - one of the last concrete lampposts in Slough.

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The proportion of films on the telly that nana has misidentified as The Gruffalo this Christmas is rapidly approaching Legendre's constant.

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Forget about convergence. If a million specific gadgets for each conceivable task was good enough for 60s Batman, it's good enough for me

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Wow, sky captain and the world of tomorrow hasn't aged well at all

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In reply to @standupmaths

@standupmaths I've held the patent on that idea since I was 12

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In reply to @alisonkiddle

@ajk_44 @samholloway how long are you two up North for? I've just arrived back from Slough

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In reply to @Samuel_Hansen

@Samuel_Hansen just when I thought I had all your many show formats clear in my head...

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!!!

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wikipedia's picture for the King of the Belgians is ace et.wikipedia.org/wiki/Pilt:HM_K…

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In reply to @mountain_ghosts

@jcoglan the problem is probably with your router (or OSX's drivers, depending on perspective). OSX takes exception to some brands of router

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In reply to @mountain_ghosts

@jcoglan yeah, it's OSX's problem, but its problem is with the router.

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2013

January

The Tyne tunnel kiosk made me pay with coins like a peasant last night but I just checked and I have two trips on my pass. #personaloutrage

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first day back at work, I'm making rude gestures at MSXML because of its mental attitude to importing nodes. #hateIE #hateIE #hateIE

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Quoth the raven, "{...}" #hateIE

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Excellent! Google music has a labs feature to give tracks ratings out of 5, which it imports properly from WMP!

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Help I've written a strongly-typed DSL in javascript and now I wish I hadn't. I wish I could use Haskell :(

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In reply to @Htbaa

@Htbaa yeah, but it wouldn't be appropriate for what I'm doing

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I have no idea why our library has just bought a copy of a GCSE maths textbook from 1987. It's in the "new accessions" list. Weird

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Is listening to the same radio 4 programme every night for the whole 7 days it's available because you fall asleep 5 minutes in a thing?

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In reply to @missradders

@missradders fantastic! I think it might be time to start the most middle-class petition in history

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is it possible to dislike a beard so much it falls off your face? I've been putting off shaving it but it's so terribly itchy now.

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In reply to @Htbaa

@Htbaa it's been there 2 months! Hair is interfering with both eating and nose-breathing

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In reply to @aperfect

@aperfect I wonder if I can make a profit selling compost to designers as Lorem Gypsum

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I've just found the world's most ambivalent mathematical symbol: \gtreqless - checkmyworking.com/misc/makebigma…

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In reply to @jjaron

.@jjaron it's used when you wish to rule out the case where a is not greater than, equal to, or less than b. Such as when b is a banana.

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FOR THE FIRST TIME IN RECORDED HISTORY, Springer LaTeX Search is useful: latexsearch.com/latexFacets.do…. Surprise surprise, it's used in economics

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In reply to @jjaron

@jjaron =/= excludes the case where they're equal

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In reply to @panlepan

@panlepan it was a good one!

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Cor! I hadn't realised quite how long my beard had grown. All gone now. #beardnews

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In reply to @Bishnavitch

@Bishnavitch I totally was

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I remain not understanding the concept of promoting an album months before releasing it for sale.

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In reply to @stevenstrogatz

@stevenstrogatz @MAA oh no, I thought the Hacker thing had finally died down!

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I've written about some of my old BlitzMax games on my blog - checkmyworking.com/2013/01/some-o…

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In reply to @mountain_ghosts

@jcoglan tonight on the news at 10: man has trouble with new system, claims nobody anywhere could use it better than he

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In reply to @stecks

@stecks I was Mjolnirly right.

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In reply to @Bishnavitch

@Bishnavitch will it really tie the room together?

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In reply to @mathpuzzle

@mathpuzzle did you notice your site's hit counter recently went over five million?

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In reply to @mountain_ghosts

@jcoglan also, the government plans to reintroduce 10,000 grey wolves to northern towns, to encourage more risk-taking

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I love the shape of seagulls as they glide, little grey Deloreans cutting a path towards something tasty

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By joining the pavement in front of me, this vicar is making bold claims about our relative walking paces

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In reply to @divbyzero

@divbyzero cor, well done for knowing 'apothem'.

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Teehee! youtube.com/watch?v=_iSzgi…

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In reply to @mountain_ghosts

@jcoglan oxforddictionaries.com/words/a-histor…

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nff! It's only 4:30! What am I supposed to do with the rest of today? I've already cleaned the flat, done a big shop and walked on the beach

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I love triple town!

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Alas, the dream was too beautiful for this world. Palindromic number of turns though, so it ended well.

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The size of the unit of measurement changing doesn't make your weight change, John Humphrys!

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Apologies to Humphrys. I changed my weighing scales from stones to kg and now I'm stuck in the floor. Someone get the Jerry Springer winch

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Hmm, how do I feel today?

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Only a week until Christiansmas! Keep an eye on @Christiansmas for info throughout the happy day.

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In reply to @standupmaths

@standupmaths I see you've upgrade yourself from Prof Matt Parks to Sir Matt Parker

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I don't want to get sued for libel, so I'll say this definitely doesn't look like a front for academic espionage

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"Hm, this unsolicited ad asking me to send them my research looks like a good idea. And that stock photo of a plane makes it legit"

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In reply to @standupmaths

@standupmaths Windows doesn't have cal.

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In reply to @standupmaths

@standupmaths doesn't look like it. And the calendar in the taskbar only goes back to 1900

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Came in to work early. Have fiddled about with widget placement for two hours. Productive day.

1 favourite 0 retweets

is there a point at which I can legitimately claim to be offended by the "singles in your area" ads on the side of facebook?

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because there are five in a row at the moment. Am I supposed to feel lonely after Christmas?

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In reply to @arowx

@arowx ??

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In reply to @MathsJam

@MathsJam NCL -> DC: look at my recaps for ideas - checkmyworking.com/category/maths… - and get a good puzzle book, like The Moscow Puzzles

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In reply to @GhostMutt

@GhostMutt everything's @Outlook.com now.

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Not a single student has come into Maths-Aid all day. They've got exams next week! What's going on?

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So @stecks and I got a bit carried away: The Aperiodical’s Possibly Annual Awards for Mathematical Achievement wp.me/p2cimT-1NM

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In today's news: computers now less autistic than I am spectrum.ieee.org/podcast/comput…

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In reply to @Samuel_Hansen

@Samuel_Hansen what did I say?

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In reply to @Samuel_Hansen

@Samuel_Hansen wow. Clearly the British mind can't conceive of a series of anything more than six episodes

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In reply to @erik_kwakkel

@erik_kwakkel do you know how that background was made? Is it ebru?

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WHAT bbc.co.uk/news/uk-204039…

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In reply to @mountain_ghosts

@jcoglan why not have normal CSS in <script type="jcoglan/css"> tags and JS that acts on those?

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Just discovered you can reorder HTML tags in Chrome's developer tools by pressing ctrl+up/down

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IE keeps finding new ways to be more helpful. #hateIE

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Oh, it looks like this error is related to the one where objects' constructors are called before they have their prototypes attached.

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whiteninjacomics.com/comics/1293.sh… #teampositivementalattitude

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In reply to @aperfect

@aperfect fairly sure that's already a thing

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Dinner tonight: cream of bad idea "à la mexicaine"

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Wow. Emscripten! developer.cdn.mozilla.net/media/uploads/…

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Tried putting sliced banana on my shredded wheat like the adverts say. It just made the shredded wheat taste like sawdust.

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It has just, *just*, occurred to me that $\frac 1 2$, or even $\frac12$. is valid LaTeX instead of $\frac{1}{2}$. Bad idea?

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So the consensus is that $\frac 1 2$ is an abomination.

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I'm surprised about the unanimity concerning $\frac 1 2$, considering the amount of bad LaTeX I've seen in my time.

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Do none of those people use Twitter?

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Manual written entirely in the first-person plural: do we find this annoying?

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The southern rahs smoking in front of both the library doors and several huge no smoking signs are offending me in every possible way

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At 18:42 the Duchess of Cambridge can simultaneously tell the time and describe how much she had for dinner

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In reply to @Bishnavitch

@Bishnavitch it would be like King Canute against the waves

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Today, IE is crashing so comprehensively on page load that I can't even look at the script console to see an error message. #hateIE #hateIE!

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In reply to @aperfect

@aperfect I haven't yet forgiven you for teaching me to slouch

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In reply to @aperfect

@aperfect yes, when we were at Brat

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In reply to @mountain_ghosts

@jcoglan fun fact: I'm currently battling an IE bug where the constructor gets called before the prototype is attached.

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In reply to @mountain_ghosts

@jcoglan even better: the error dialogue is crashing so hard that either a) it throws its own error dialogue, or b) all of IE crashes

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In reply to @mountain_ghosts

@jcoglan I tried the old delete-stuff-until-what's-left-doesn't-crash tactic, but after enough errors IE10 just refuses to load *any* page

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When you have not enough dust on your screen to interfere with work, but enough to make smilies look like winkies

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WOW. Just wow. The cause of my IE mega-crash was mismatched tag names. That's, like, a 1995-style crash bug.

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In reply to @CardColm

@CardColm @mathhombre yeah, we're pretty open with our contempt for marking

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED yes, you are the only person

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Uh oh, Shpongle has come on the music shuffle. Might not feel like accepting consensus reality when I get off the train. #radcommute

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.@TweetsofCushing has confused me

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In reply to @jjsanderson

@jjsanderson where?

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In reply to @jjsanderson

@jjsanderson is that the spot that used to be the awful grill place?

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In reply to @jjsanderson

@jjsanderson the art bar has always been called "Barca", and I think they expanded upstairs when the rubbish grill closed

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In reply to @jjsanderson

@jjsanderson while we're talking Tynemouth eateries - have you tried the new restaurant next to Marshall's yet?

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Proof by induction until you have enough values to put into the OEIS

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In reply to @jjsanderson

@jjsanderson no idea. I could've gone yesterday but I panicked and went to Lui's instead. (belly pork was mmmmm!)

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In reply to @jjsanderson

@jjsanderson I still haven't been in Allard's. I was put off by the people I saw with half-litre wine glasses sat outside last summer

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In reply to @jjsanderson

@jjsanderson none, sorry. I'm sure I can remember seeing a sign once, but I've completely forgotten what it said. Some sort of club?

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gnuplot compiled to javascript with Emscripten! gnuplot.respawned.com O frabjous day!

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In reply to @jjaron

@jjaron mmm, smelly books

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Advanced mental gymnastics: minimising the time between deciding to get fish and chips, and when you get fish and chips.

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Man, that's good fish! Man, those are good chips!

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In reply to @stecks

@stecks you've *ordered* fish and chips? What crazy world do you live in?

0 favourites 0 retweets

In reply to @stecks

@stecks O brave new world that has such wonders in it

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In reply to @vickytnz

@vickytnz and you've just reminded me that I seem to have lost it in the upgrade to windows 8!

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Looking for a drummer for my new death metal/witch house band, "Internet Explorer 8's Developer Tools"

3 favourites 3 retweets

A spambot called "Pimbley Carithers" with an image of a statue weeping blood as its avatar is offering me 100 RTs. #megacreepy

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In reply to @vickytnz

@vickytnz thanks for the warning. I'm turning my heating on so by the time it gets here I will be cosy warm

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@moynihaj you are the last person I expected to see on twitter!

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Oh my god is Britain's Brightest even a joke?

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"The customer is always right." That's something we strongly believe in at my new pest extermination company, Sick Of Ants

0 favourites 1 retweet

Good news, everyone! I've remembered the password for @Christiansmas just in time

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In reply to @matheknitician

@matheknitician ooooooh!

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In reply to @stecks

@stecks @peterrowlett either of you around for a podcast tonight?

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In reply to @ColinTheMathmo

@ColinTheMathmo hah! No it isn't. And the scripts that you put in your page are hosted on a CDN which is very reliable

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In reply to @ColinTheMathmo

@ColinTheMathmo the docs at mathjax.readthedocs.org/en/latest/ are up, so you could read through those

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In reply to @ColinTheMathmo

@ColinTheMathmo the HTML on that page is very odd - lots of unclosed and mismatched tags

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In reply to @ColinTheMathmo

@ColinTheMathmo ahhh, you've got parentheses set as delimiters! Instead of ['\(','\)'], you should have ['\\(','\\)'] to escape the slashes

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In reply to @ColinTheMathmo

@ColinTheMathmo don't have the second bit with the parentheses. The page on mathjax.org has two slashes. Should we switch to email?

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In reply to @ColinTheMathmo

@ColinTheMathmo yes, that's right. Yes, you'll need quad slashes if it's going through python, or put an r character before the string

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In reply to @ColinTheMathmo

@ColinTheMathmo (the python string, that is)

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In reply to @ColinTheMathmo

@ColinTheMathmo there's a <p> inside the last <ul> tag. Not closing <p>s is a rubbish thing to get stickly about, really.

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In reply to @ColinTheMathmo

@ColinTheMathmo what's the other browser? It should work on everything back to IE6.

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In reply to @ColinTheMathmo

@ColinTheMathmo I couldn't commit any time to it, but I'm happy to answer questions

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In reply to @ColinTheMathmo

@ColinTheMathmo yes, I didn't look too closely. Apart from all the unclosed <p>s, but whatever.

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In reply to @stecks

@stecks @peterrowlett super. We'll cast pods like it's going out of fashion

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In reply to @pkrautz

@pkrautz not for me. It's always had DNS problems; I need to move it to a different server. I'll prod my hosting provider (my brother)

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IF ONLY WE WERE THIS CLEVER! RT @bcpslallen3: @aperiodical article could be improved by the inclusion of a nonsense eqn

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In reply to @mountain_ghosts

@jcoglan umm... lambda calculus?

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In reply to @vickytnz

@vickytnz the first episode was too much for me. I decided I don't need to watch Grim Things on a Sunday evening

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In reply to @vickytnz

@vickytnz I don't even have that consolation. The girl in that episode was nice but she got killed! Double sad :(

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youtube.com/watch?v=ZGhVXg… !!!!!!!!!!!!!!!!!!!!11111

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In reply to @Plattsc

@Plattsc thanks. I didn't have deer, I had the single worst mexican of my entire life. Never trust Whitley Bay.

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My stomach just jazzed a most incredible bebop beat. Last night's dinner has inspired it.

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In reply to @DanielColquitt

@DanielColquitt that's the worst!

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I hate it when a plan comes together at the last minute. I like leeway! #antihannibal

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In reply to @mountain_ghosts

@jcoglan are you aware of brooklynintegers.com ?

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In reply to @mountain_ghosts

@jcoglan gaussian integers

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In reply to @icecolbeveridge

@icecolbeveridge it's there, but I've had a busy few days and I don't think @stecks has looked at it

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In reply to @bluecombats

@bluecombats yep! The MathJax bookmarklet might help: dzejkej.github.com/mathjax-bookma…

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Living the paperless office dream, but it just looks like I haven't prepared for this meeting and I'm playing on my phone (I am now)

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In reply to @bluecombats

@bluecombats @peterrowlett @aperiodical can't do that in RSS,for obvious reasons

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In reply to @bluecombats

@bluecombats @aperiodical @peterrowlett because rss readers filter out scripts.

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In reply to @bluecombats

@bluecombats @christianp @peterrowlett is this really a problem?

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In reply to @Bishnavitch

@Bishnavitch @AdamJackzon cafe 21 has been unimpressive the last couple of times. For dinner: Blackfriars; lunch: garden kitchen/21 fenwicks

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In reply to @alexbellos

@alexbellos ooh that's nice! But it doesn't show off the circle's almost-unique topological feature - one roundtrip visits paddington 4x

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In reply to @alexbellos

@alexbellos in fact, the labels for Paddington and Bayswater are completely missing. Map-making must be hard!

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In reply to @EngageNCL

@EngageNe that's a nice big blackboard! Where is it? They're very scarce in the school of maths, which I think is a crime

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The problem I have with food festivals is that, while one can happily listen to music all day, trying the same with food leads to bad things

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The next Newcastle @MathsJam is next Tuesday, the 22nd. 7pm, Charles Grey pub. I have some new puzzle books, and a lot of origami paper.

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People who think that fish/crabs/whatever-small-animals don't feel pain: why on earth would you think that?

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Have accidentally written the word 'aceademic'. Now have a burning desire to use it, preferably on radio 4's Go4It circa 2002. #ace

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How long have you been able to use shift+left/right to move a text selection in chrome, in a non-editable element? Mind blown.

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In reply to @walkingrandomly

@walkingrandomly but the sandwiches on British Rail were rubbish!

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In reply to @mountain_ghosts

@jcoglan people sending you correspondence retain copyright on that correspondence. It's a terrible thing to insist on, but legal

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In reply to @walkingrandomly

@walkingrandomly I may be too young to remember what British Rail sandwiches were like.

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In reply to @walkingrandomly

@walkingrandomly ... but I'm old enough to know that East Coast got loads better after they nationalised it

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In reply to @mountain_ghosts

@jcoglan however you can 'criticise, review, and report', with appropriate excerpts as necessary

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In reply to @mountain_ghosts

@jcoglan I think that's fine but now is an excellent time to say IANAL, I just took a workshop once

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Oddly, ISS's response to students maxing out the wifi in the library is not "we should've prepared more capacity", but "students broke it!"

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I will concede that goobers who use 3g dongles that clash with channels already in use constitute the worst kind of goober

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In reply to @peterrowlett

@peterrowlett Information Systems and Services. Except, I'm sure they rebranded themselves last summer but they seem not to have noticed

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In reply to @peterrowlett

@peterrowlett @aperiodical aww, I sneakily de-Oxford-comma-lated it after publication!

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In reply to @JanvierUK

@JanvierUK your name isn't Jan Vier-Palmer? I always assumed you were a Flemish man.

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Fie! Why fie? Wifi!

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That tweet was excellent for two reasons: 1) phonetic palindrome; 2) palindromic number of spare characters

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In reply to @pelagikat

@hornmaths @loch_b is a "peach Melbourne" a thing?

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In reply to @pelagikat

@hornmaths @loch_b I was making a pun?

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This is a lovely tumblr - gofindmomo.com - there's a border collie hiding in each picture

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In reply to @ben_nuttall

@M1ke @ben_nuttall it's like a random walk but one of the directions is disallowed?

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Nooooo! "@BoraZ: Elsevier In Advanced Talks To Buy Mendeley For Around $100M To Beef Up In Social, Open Education Data techcrunch.com/2013/01/17/els…"

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In reply to @vickytnz

@vickytnz in Newcastle?!

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In reply to @vickytnz

@vickytnz where is there? Zapatista, and does Las Iguanas count?

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In reply to @mountain_ghosts

@jcoglan @tunixman that's nice, but what problem does it solve? If you can write malformed latex, you can write malformed hatex

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In reply to @mountain_ghosts

@jcoglan never mind, I realised immediately after posting that that it's for programmatically generating latex.

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Still waiting for someone to remake Netstorm. Even just reusing the sound effects in something else would do, actually.

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just looked up the name of the main character in Good Will Hunting. Going to hand my degree back now.

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In reply to @vickytnz

@vickytnz @ebuie jolly good! See you both on Tuesday?

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Acquiring a PRS licence for my new cellar bar under the Newton Institute, "Fermat's Last Beer-Room"

1 favourite 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy will one of the twins be shot into space?

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Does anyone know how to make a gif from a video easily? I assume there must be a simple way these days

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Proofreading Barbarella's new book on woodland conservation in Northern England, "Humber Lumber Number Theory: Yonder Fonda Ponders"

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor there's a bisphenol with that phenylalanene. What if they use ascorbic stabilisers to bump Colouring Bs up the glutamates?

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Man that was a good sandwich. Good job, past times CP! High fives through time!

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In reply to @JanvierUK

@JanvierUK a) the habits make them look like penguins; b) they could be hiding anything under there!; c) nun of the above

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In reply to @pkrautz

@pkrautz what happened to the virtual Kaffeehaus? No spare time?

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In reply to @Gelada

@Gelada or from another perspective: we're asking to create life in our own image

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Busy day in Maths-Aid. I don't miss revising at all!

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In reply to @Bishnavitch

@Bishnavitch because it reminds you you're not a vampire?

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In reply to @Bishnavitch

@Bishnavitch yeah, keep telling yourself that

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In reply to @divbyzero

@divbyzero the polynom package might be overkill but it should do it. Can't test because I'm on the metro home

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In reply to @divbyzero

@divbyzero must be possible with normal tex. I'll fiddle when I get home

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In reply to @divbyzero

@divbyzero why is your editor trying to spellcheck command names?

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In reply to @outofthenorm2

@outofthenorm2 go on then. What do we need to do?

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In reply to @outofthenorm2

@outofthenorm2 what recreational maths journals are there at the moment?

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IT WAS MY BIRTHDAY AND NONE OF YOU GOT ME ONE OF THESE odlco.com/catalog/alpacas I HATE YOU ALL I'M LEAVING TWITTER

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This beauty costs about the same as my life's deepest desire, a Curta calculator. I'm conflicted now ioffer.com/i/giant-alpaca…

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In reply to @vickytnz

@vickytnz I am now!

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In reply to @outofthenorm2

@outofthenorm2 well googled, that's the one I was thinking of

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In reply to @outofthenorm2

@outofthenorm2 my dissatisfaction with the mathematical gazette is 90% of the reason the aperiodical exists

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In reply to @outofthenorm2

@outofthenorm2 ... both?

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In reply to @aperfect

@aperfect !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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In reply to @aperfect

@aperfect twitter wouldn't let me send enough exclamations. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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In reply to @peterrowlett

@peterrowlett @stecks @outofthenorm2 already in progress, big bear. Ten four, over and out.

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"Jump NHS queues with private medical insurance". "Jump literal queues by stepping on the heads of the poor". One of these is a real advert.

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Although, if you pay for NI *and* private insurance, I suppose all your NI goes to help other people.

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In reply to @outofthenorm2

@outofthenorm2 yeah, probably nothing good exists yet, or we would've seen it.

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In reply to @Samuel_Hansen

@Samuel_Hansen have you removed the first few aperiodical round ups from acmescience? If so, can I have them?

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Is there an HTML tag for "do you see what I did there?"

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In reply to @Samuel_Hansen

@Samuel_Hansen what's the URL of the category containing them all?

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In reply to @Samuel_Hansen

@Samuel_Hansen yeah, I couldn't find the search box. No hurry.

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In reply to @Samuel_Hansen

@Samuel_Hansen nope, can't see it

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen aha! Thanks

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After four months! Another round up! RT @aperiodical: Post: Aperiodical Round Up 8: if a bird heard the word 'surd' wp.me/p2cimT-1kk

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Hah. Guess which blog is hit number 2 on google for "episciences project".

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How do we have stronger google-fu than Nature?

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In reply to @HilariousCow

@HilariousCow do you think? I didn't like it

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In reply to @mountain_ghosts

@jcoglan I have! It's ok though, he didn't know I made it at the time. And he was wrong

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Having the focus to install Java without also installing a million junko toolbars should be part of the test to be a brain surgeon

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Don't watch this, arachnophobes. Everyone else: cutest spider ever! youtube.com/watch?v=rLw-9d…

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Oh yeah, twitter embeds video thumbnails. Sorry, arachnophobes!

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I just want a PDF of this article, ScienceDirect. Is that too much to ask?

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I think I'll leave my hair like this today

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bums! Big ole bum sandwiches. My xbox is dead.

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I've got a box of miniature dairy milks, I've got a bag of 2p coins, but I don't have a little postbox to put them in! O calamity!

0 favourites 1 retweet

Trying to install Moodle and STACK on Ubuntu under Wubi might have been a terrible idea. I hope my hard disk forgives me.

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I have STACK running! Victory!

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Meanwhile, @NclNumbas is considerably less of a faff to use

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In reply to @mountain_ghosts

@jcoglan I can think of a different all-white shower that's more deserving of the blame

1 favourite 0 retweets

The best dinosaur comic in a long time qwantz.com/index.php?comi…

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Pineapple juice, my old friend! It's been too long! Come, sit down over here, in my belly.

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A message for the snow: youtube.com/watch?v=yHV04e…

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This was supposed to be a quick game of civ!

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And I'll never forget how to type ö again now I've noticed its windows character code is an arithmetic sequence

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In reply to @dmh10

@dmh10 Civ Rev on the xbox is both a quick and a very good game of civ. I think it's the tightest design of any of them.

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In reply to @dmh10

@dmh10 but today I was playing civ 5 because my xbox is dead. And getting anything other than military victory needs the patience of a saint

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Thought I'd make a javascript version of the up-goer five editor that doesn't need server calls. Turns out, conjugating verbs takes AGES

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Since I can't think of anything else to do, I'm going to have a hot chocolate. Right after sending this tweet because that'll pass more time

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED that's already a strong contender for Best Grim Tweet of 2013

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED this is you: images.angusrobertson.com.au/images/ar/9781…

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@InnerRhythm2012 a what now?

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In reply to @mountain_ghosts

@jcoglan the top line of a commit message is only meant to be max. 50 chars. Short description, then two newlines and expand at length

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In reply to @mountain_ghosts

@jcoglan (but don't be mistaken: I don't know anyone who sticks to that. Certainly not me! So maybe github should be less prescriptivist)

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the catalogue number for this OEIS entry about palindromes was just 6 off being a palindrome itself :( oeis.org/A086862

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In reply to @mountain_ghosts

@jcoglan first thing I found on google is stackoverflow.com/questions/2290…, and the vim syntax highlighting has opinions about it too

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Does anyone know how to use NAN-DOS? I'm getting this error: "No peri peri in Drive A: Abort/Retry/Fail?"

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Spectacular: TeX Live ported to javascript manuels.github.com/texlive.js/web…

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Quod Erat Remonstrandum: proof by heated argument. #proofmethods

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I've finally done it. 144 sticks of white chalk are being delivered to my local corner shop by Amazon, whom I have paid £2.97.

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I can't see how anyone is turning a profit at any stage of that transaction.

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Newcastle @MathsJam is tomorrow! 7pm at the Charles Grey pub. I have a few new puzzle books and lots of origami paper. Join me!

1 favourite 2 retweets

Imagine if snowflakes popped when they hit the ground! We don't live in the best of all possible worlds :(

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I thought I had excellent taste in music until I realised I was having a mood swing

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In reply to @kirkpatricke

@kirkpatricke I've done that before, but it was for a job interview. Didn't get it.

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In reply to @MathsJam

@MathsJam You southern wusses. Newcastle is on! Cold only makes Geordies stronger.

0 favourites 1 retweet

When a clementine looks this much like a boob, you know it's gone bad

0 favourites 1 retweet

In reply to @CardColm

@CardColm turned out it was fine, the sole good clementine in a bad box.

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In the grim dark future of the 41st millennium there is only work. #stressederic

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My form tutor and art teacher from school just walked into my office with a group theory question, not knowing I was here. Surreal 2013!

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Definitely going to share it at MathsJam tonight to see if everyone agrees with my proof, or if they can cite a relevant theorem

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In reply to @divbyzero

@divbyzero is there maybe a colon in the middle, like "It's -10: below zero."

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Draw the same symbol on six faces of a cube such that you don't break these rules

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In reply to @JamesMoosh

@JamesMoosh that has two faces on an edge pointing the same way.

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In reply to @JamesMoosh

@JamesMoosh that has threefold symmetry round a vertex. They all point outwards - that's disallowed too

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NCL -> MAN what's unclear?

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In reply to @MathsJam

@MathsJam ahhh, tweet error! Starts at 1000, then goes down when you press a button

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In reply to @JamesMoosh

@JamesMoosh threefold symmetry

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In reply to @mountain_ghosts

@jcoglan you should make it, and call it the Great Internet Password Kolmogor-Off. With a graph.

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People who walk up to the platform edge 2 minutes before the trains due: who are you racing?

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People who walk up 3 minutes before: what you're doing there is unsustainable.

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I DEFINITELY PUT AN APOSTROPHE IN THAT PREVIOUS PREVIOUS TWEET RRR

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Ridiculous chalk order update: delivery estimate 16th-25th February. I paid nearly three whole pounds for this! Unacceptable!

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Teachers and lecturers: my day job is to make an e-assessment system for maths. It's called Numbas, and you might like to follow @NclNumbas

1 favourite 2 retweets

In reply to @eAssess

@eAssess thanks for the RT!

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie Sorry, already got plans tonight

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`v.v.value = value`. I am bad at choosing variable names

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Now @TweetsofCushing is trying the Good Will Hunting method to cure me of colourblindness. I think it might actually be my fault.

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Lovely! youtube.com/watch?v=lvtT8i…

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Identifying wallpaper groups in the Jesmond Holiday Inn. Fun times at the school of maths and stats away day

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In other news, I was on the metro with Café 21's maître de. He didn't show me to a seat. Disappointed.

0 favourites 1 retweet

Ridiculous chalk order update: it's in the post! Almost three pounds well-spent

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In reply to @stecks

@stecks to python!

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Colourblind-proof version of @haggismaths's edge-5-colouring of the dodecahedron, prepared by @TweetsofCushing ...

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.... and the finished product! After going off-piste yesterday and getting it wrong, today it's a dodecahedright!

0 favourites 1 retweet

Here's a change: for once I'm filling up the @aperiodical news queue, instead of emptying it.

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In reply to @MarcusduSautoy

@MarcusduSautoy Interesting choice of identity. "I am not a number: I am a matrix!"

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The new Shugo Tokumaru album is ecstatic

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I read the comments on the internet. I'm going to have to take the rest of the day off.

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In other good music news, The Staves are lovely.

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facebook is showing me adverts for Vans shoes, tiaras for ballet dancers, and Lacoste polo shirts. Just missing some goth leather

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In reply to @jjaron

@jjaron our Taiwanese visitor asked me to explain the s on the end of 'maths'. He couldn't get his tongue round it. Dude had a point.

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In reply to @jjaron

@jjaron yeah, and people who want us to say "maths are" all say "mathematics is". My opinion: I don't care!

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In reply to @jjaron

@jjaron no, they say that to be consistent, we who say "maths" should say "maths are" instead of "maths is"

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I am on the page for a figure from a paper. First to find the link to go back to the paper wins a shout-out in my post pnas.org/content/104/40…

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I'm sure I saw a really good HTML paper page layout earlier this week. I don't think they *need* to be as bad as they all are, do they?

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Science magazine: thanks for making me RAS into Uni instead of using Shibboleth. It made me rethink how much I want to read this paper

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In reply to @rmehigan

@rmehigan it is, but what link did you use to get it? I of course had the full article already, but it's a terrible page design

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In reply to @makerfaire_uk

@makerfaire_uk not me. I've been collecting arty maths for a while: aperiodical.com/category/colum…

0 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett yeah, that's the only link I found. Crazy. Why doesn't the paper title link back to the paper?

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Ridiculous chalk order update: it has arrived! The lady in the shop was very enthusiastic about Collect+.

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Apparentheses: punctuation delimiting a supplementary statement casting doubt on the preceding one

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hooray, hits from reddit! I like getting hits from reddit. There are usually lots of them

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no, edge.org, "ten¹⁴" is not an acceptable way to write a number.

2 favourites 0 retweets

I HAVE DISCOVERED HOW TO TYPE ACCENTED CHARACTERS IN WINDOWS 8 WITH SENSIBLE KEY COMBOS! NOTHING CAN STOP ME NOW! ÁÉÍÓÚáéíóúáááááá

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths Alt+Gr (the right Alt key) plus a vowel gets you an acute accent. Sadly, it doesn't seem to extend to other accents

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Nobody else, when linked to a mobile-only "m.domain.com" page, starts singing "emm dot" to the tune of "mmm bop", right?

3 favourites 5 retweets

Who knows some mathematical eggcorns? I have "Klein bottle" and the "Witch of Agnesi". Any others?

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In reply to @ColinTheMathmo

@ColinTheMathmo "Kleinsche Fläche" (Klein surface) was misspelt "Kleinsche Flasche" (Klein bottle) once...

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In reply to @ColinTheMathmo

@ColinTheMathmo and Maria Agnesi miswrote "versoria" (curve) as "versiera", which looks like a truncation of "aversiera" (witch)

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In reply to @quirkycookies

@quirkycookies @cherrymakes @Frans_facts @giagia go! You'll have loads of fun.

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SNAND! If I can just work out how to get rid of the S, it'll be Turing-complete

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Walking on the snow! Walking on the sand! Everybody knows! That I love der Strand!

0 favourites 1 retweet

The dream is over. Flooded my shoes being a bit too adventurous with the North Sea

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So apparently a good way to keep your feet warm is to fill your boots with seawater? Or are my feet dead?

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In reply to @rmehigan

@rmehigan didn't think of that! I might return with gloves later

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In reply to @mountain_ghosts

@jcoglan you can link to a particular time in iplayer by using the "link to this" button

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In reply to @stecks

@stecks Reader, I did not start paradoxically stripping.

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In reply to @haggismaths

@haggismaths Chip Chipperson, News Gazette Courant. What is this rumour? Are you starting it?

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accidentally discovered a really cheap fake tilt-shift method: move your phone camera away just as it's finishing taking an HDR photo

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In reply to @mountain_ghosts

@jcoglan I've had to spend the last month convincing a committee of maths PhDs and Profs that javascript crypto is a bad idea.

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths I don't think that's a millennium problem, is it?

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In reply to @haggismaths

@haggismaths PR at the RSME about the invariant subspace problem solution rsme.es/content/view/1….

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In reply to @aperfect

@aperfect Romain Duris! Audrey Tautou! Michel Gondry! youtube.com/watch?feature=… !!!!

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A _wobbling map_ on a metric space matches every point with another one a bounded distance away - points wobble under repeated applications

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In reply to @aperfect

@aperfect ahhh so you have the DVD? Did I give it to you as a present?

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In reply to @aperfect

@aperfect I remember now! It came in a fantastic envelope from Thailand.

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In reply to @CardColm

@CardColm any juicy gossip? Was my post acccurate?

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In reply to @S_A_Thomson

@S_A_Thomson à ton avis

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Google Reader zero! That's it, I've read the whole internet. I know all of it.

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In reply to @gwstagg

@Tegglington I don't do spoilers

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I've done too much today! I'm ready for bed.

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Here it is, the World's Most Pretend Car: handlewithfun.com/lot-details.cf…

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In reply to @vickytnz

@vickytnz I draw comfort from the fact that I am that loathsomely young person to many other people

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In reply to @vickytnz

@vickytnz aren't we roughly the same age?

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Watched a flock of pigeons take off vertically in a high wind, then hover backwards to land in a tree. It amused me

1 favourite 0 retweets

In reply to @vickytnz

@vickytnz really? That's mad: both Tynemouth and the city centre are really quiet

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I've updated the power law story with Mason Porter's excellent Batman & Robin meme aperiodical.com/2013/01/log-lo…

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In reply to @stevenstrogatz

@stevenstrogatz 12 pages in to that document, I've decided to remain confused

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It's so badly written! They're all like "OLDE WORDES!" and I'm all like "That's not period-appropriate!"

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In reply to @vickytnz

@vickytnz it's Ripper Street. Everything about the script is terrible.

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In reply to @ben_nuttall

@ben_nuttall I just embed github gists.

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It's just occurred to me that I haven't done any loci since year 9 maths. That's a shame

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In reply to @C_J_Smith

@C_J_Smith oh I suppose, but it isn't the same: it's all algebra

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yep yep yep kamdhenudham.wordpress.com/2011/08/20/ind…

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In reply to @Tony_Mann

@Tony_Mann @peterrowlett do you mean blundre? #hamburger

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Man why does anybody drive into work? That traffic was rubbish.

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It also confirmed my opinion that Byker is non-euclidean

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In reply to @mountain_ghosts

@jcoglan was it about a horse?

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Help us make a decent maths news source! RT @aperiodical: Call for volunteers to join the Aperiodical News Team wp.me/p2cimT-1CV

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"Sebastian, for the ads in The North, they all use the tram up there, yah?" "Yah I think so, Belvedere"

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Other southern names: Bunty, Armeendo, Trabimbaline, Corky.

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In reply to @vickytnz

@vickytnz good American accent?! It was dire

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Feature branch. Feature branch? Feature branch! Say it enough and it sounds like the name of a new Hollywood starlet, Fietscha Branch.

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In reply to @profkeithdevlin

@profkeithdevlin or far more pedantic government

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In reply to @standupmaths

@standupmaths it behooves you to gawk at an original copy of Byrne's Euclid

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Does anyone fancy giving this scrabble-with-numbers game a go with me? numbered.es My username's "christianp"

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In single-player number game news, Quento for android is diverting, and pleasing on the eye: play.google.com/store/apps/det…..

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Getting security clearance for my new spa strictly for defence officials, Intercontinental Holistic Missile.

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In reply to @LynnBowie

@LynnBowie @MathsJam the MathsJams map (maps.google.co.uk/maps/ms?msid=2…) says that someone else is interested in a Joburg jam. Suggest you start one!

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In reply to @naomzzb

@naomzzb cor, that looks nice!

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Aaaarrgggg what is the point in releasing a single for radio play only, months before the album?

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In reply to @brittneybean

@brittneybean but if I haven't forgotten about a track by the time it's out, I've usually grown sick of hearing it so much.

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In reply to @standupmaths

@standupmaths but the way you write the infinity symbol, it looks like you've divided zero (at what point does this become cyberbullying?)

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In reply to @vickytnz

@vickytnz YESSSSS. If you can get hold of it, that is

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An afternoon very well spent.

2 favourites 1 retweet

Now it's safely ensconced in its dual

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Before I poison myself: pasta doesn't go off. That's pasta's deal, right?

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Well, this doesn't really know *what* it wants to be

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Pasta con tutto verdict: surprisingly tasty, though I could've just let the chilli go off rather than use it

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In reply to @reflectivemaths

@reflectivemaths I do not. The Aperiodical has a podcast, but we just chat about the site. There is a gap at the moment

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Pretty! thisiscolossal.com/2013/01/sand-a…

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In reply to @mountain_ghosts

@jcoglan you share more thoughts than you actually have?

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This government's single-minded dedication to ruining every aspect of society, to the detriment of any other policy, is quite remarkable

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Man, open source is such a good thing. I can quickly make a single-line change to this program to suit my incredibly tiny niche requirement

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Fairly sure the head of school has a love/hate relationship with me now. My software: good! My communication ability: not good!

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In reply to @sxpmaths

@sxpmaths I see your 72 point move and raise you... one point!

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Why does the Windows 8 task manager take so long to appear? It's ridiculous!

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I also have opinions about flash adverts using up all of my CPU. I have a newsletter you can subscribe to.

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Oh goddddddd, C++ is hard!

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In reply to @mountain_ghosts

@jcoglan gives "a fractal of bad design" a whole new meaning

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie go on then

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In reply to @sxpmaths

@sxpmaths you knacked me with that bonus. How do you do it?

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My life for the past 10 minutes. What have I become?

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In reply to @Bishnavitch

@Bishnavitch oi Bish! Sort your life out. Are we seeing this film? Can't get hold of you

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In reply to @jjsanderson

@jjsanderson hah, that's excellent! I will try it on the next southerner to visit and see if it's more convincing

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Lincoln compares favourably with Ripper Street as a historical drama: many more appropriate moustaches and fewer Americanisms

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I'm going to start calling revolving doors cylindoors. I think this is a good life decision.

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resisting-the-urge-to-say-that's-a-weight-off-my-mind-after-a-haircut-stress. #germanemotions

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Almost got a full house in Tweetdeck Bingo (when a single tweet appears in every single column for all my accounts)

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Sad cat poem spencermadsen.tumblr.com/image/41304837…

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In reply to @aperfect

@aperfect do you think? They've got stupid noses.

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I have a spreadsheet of module assignments and their due dates. Any sensible grading system would let you import that as CSV. Not ours!

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Does the use of dropdown boxes to solve every UI problem correlate with, like, support of the Green Party or Baha'i or something?

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I'M ENTERING NUMBERS! GIVE ME A NUMBER ENTRY BOX I CAN TYPE IN!

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In reply to @mountain_ghosts

@jcoglan oh but of course, that goes without saying.

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In reply to @vickytnz

@vickytnz "a fluid series of multi-device encounters" #websitedesignorwildnightout

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In reply to @vickytnz

@vickytnz wasn't that one of the old b3ta quizzes?

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So do birds just stay where they are when it's this windy? I haven't seen any all day

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Somebody please tell me something interesting about the number 1246. It's driving me mad.

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In reply to @samholloway

@samholloway hrmm, they're all pretty lukewarm

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I agree, but why is that? RT @sann0638: if the question is what is the next number in the sequence 1,2,4, lots of people would answer 6?

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Buying a PRS licence for my new musical instruments shop, "If you've got it: flautist."

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Today's algebra seminar, first slide: enumerate words of length N which don't contain a subword SEX. #hotmathematicians

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Now we don't want either of the subwords SEX or EXPERT. I think I can see where this is going...

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February

In reply to @profkeithdevlin

@profkeithdevlin you're in Newcastle?! I'd love to meet

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In reply to @profkeithdevlin

@profkeithdevlin ohh, Newcastle Australia. That makes more sense. Whoops.

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What a nice day! Is the universe high-fiveable?

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Having a summery morning in the office with @TweetsofCushing, with Glenn Miller on the youtubeophone

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It's 12:46 again and still no satisfactory numerical facts about it. Is it the fabled smallest uninteresting number?

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In reply to @Bishnavitch

@Bishnavitch ahh, I answered the first time and it went beep, so I assumed you'd accidentally called me

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In reply to @Bishnavitch

@Bishnavitch but yes, kharma

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In reply to @elinoroberts

@elinoroberts not to me it isn't.

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In reply to @elinoroberts

@elinoroberts so apparently my department is doing a maths festival at Life tomorrow? I wonder why I'm not involved...

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In reply to @elinoroberts

@elinoroberts we are. I'm more surprised I wasn't asked by people here. Maybe I was and I've forgotten?

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In reply to @stecks

@stecks TURBOWEAK

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In reply to @Bishnavitch

@Bishnavitch nooooope

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In reply to @edbradshaw

@edbradshaw wow, you're really getting into the British spirit! Waiting for the BT man is an integral activity of our culture.

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In reply to @mountain_ghosts

@jcoglan you have single-handedly invented the concept of doggerel complexity classes. I hope you're proud

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The people upstairs have decided to become the kind of people upstairs who play rubbish music until 3 in the morning. Hmph.

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Things just got serious: I want answers on the Aperiodical's Mathematical Survey telling me why 1246 is interesting. survey.aperiodical.com/question/510cd…

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In reply to @icecolbeveridge

@icecolbeveridge A: no it wouldn't. B: that's proof by contradiction

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In reply to @monsoon0

@monsoon0 yes. It was one of the better ones, but not completely satisfying

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In reply to @icecolbeveridge

@icecolbeveridge oh, I don't like that formulation, though it does justify my objection to "not interesting => interesting" more

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What happens when fantasy worlds with orcs and elves and so on leave the middle ages?

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In reply to @vickytnz

@vickytnz steampunk orcs?

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In reply to @vickytnz

@vickytnz I want elves in precarious beehive wigs and I want them now

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In reply to @vickytnz

@vickytnz oh, I thought of a name for a modern setting one yesterday: Miss LARPle

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In reply to @edbradshaw

@edbradshaw that has most of the right ingredients, but it's clinically clean. The secret of good fry-up is grease.

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In reply to @HilariousCow

@HilariousCow filenames starting with a dot are hidden in unix

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Does anyone know how you buy Gap trousers with a 36 or 38" leg online? I own some, but their site denies all knowledge.

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oh I give up. shopstyle will reveal the location of the big troos

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and now I discover that shopstyle won't let you filter by leg length. That's it, I'm learning how to make my own trousers.

1 favourite 0 retweets

Forget it all, I'm wearing a dress from now on.

1 favourite 0 retweets

In reply to @mathblogging

@mathblogging is the "user activity" stream on the front page a good idea? Most of my tweets aren't maths-related

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OK, it wouldn't make an interesting ad campaign, but how is comparetheparquet.com not even registered?

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First day of full-time work, it's ten to twelve, and I'm still trying to work out how to get Visual Studio to work. #highproductivity

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Either a hyphen is missing, or the Metro's in trouble. MT @My_Metro: Calling all 4 weekly MetroSaver holders...

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In reply to @mountain_ghosts

@jcoglan that isn't even a valid question. You write your own cryptographically secure certificate of neckbearditude.

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Phew! Two and a half hours later, I'm home. #rushhour!

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Blew on samosa to cool it down. Hot air came out the opposite corner and burnt my finger :(

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The 20th century really was violent: dance cards went out of fashion, replaced by punch cards.

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In reply to @mountain_ghosts

@jcoglan are you aware of Python's dict.items() ?

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The fact that it's physically possible to be awake while the schools programmes are on radio 4 is evidence this isn't the best of all worlds

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In reply to @evelynjlamb

@evelynjlamb isn't that #ProjectiveRunway?

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awhh, "The Testimony of Patience Kershaw" by the Unthanks just destroys me every time it comes on. Such a sad song.

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Phases 1 and 2 of @TweetsofCushing's attempt to make an equilateral triangle

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In reply to @standupmaths

@standupmaths that's really quite lovely!

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In reply to @haggismaths

@haggismaths how should we credit you at the @aperiodical? As Haggis, or your real name?

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The dude whose computer discovered the new big prime was given $3000 by GIMPS. It's like a lottery with useful side-effects!

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In reply to @gwstagg

@Tegglington @TweetsofCushing already on it, Staggcoach

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Unholy! Couscous, chickpeas, mushrooms and bacon, with leftover parsnip and carrot mash on the side.

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Wow, green is actually a mental colour for bedsheets! I feel like I'm on the set of a Star Wars porno.

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Uh oh, Today is tackling the Mersenne prime. No John Humphrys in sight though, so no reason to be afraid

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And, has thou slain the EBac? Come to my arms, my beamish boy! O frabjous day! Callooh! Callay! He Gove way!

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Yo Gove, I'm real happy for you and I'ma let you finish, but Cambridge's IGCSE is one of the best maths syllabuses of all time. OF ALL TIME!

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Just got into work and this masterpiece was on my desk. @TweetsofCushing is very talented.

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In reply to @ebuie

@ebuie and it doesn't catch 90% of CC-licensed material

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In reply to @ebuie

@ebuie it doesn't show them.

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In reply to @mathsinthecity

@mathsinthecity yep, going to look at it when my boring work day is over

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In reply to @mathsinthecity

@mathsinthecity I think you might have missed @icecolbeveridge's pun

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In reply to @sxpmaths

@sxpmaths Wolfram alpha reckons the same as water, which can't be right

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In reply to @evelynjlamb

@evelynjlamb it looks like it's getting headlines and author names from RSS feeds. There are no names attached to the SciAm podcast feed

0 favourites 1 retweet

In reply to @EngageNCL

@EngageNe I haven't decided, but I can make a pretty firm bet: it'll be my usual comfortable mathmo-wear

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Back in the green screen bed. Challenge: name a Star Wars scene that couldn't be reshot for a porno spoof.

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In reply to @standupmaths

@standupmaths describing our relation to that requires replacing the tally-based great-great-...-grandma system with a place-value system

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In reply to @standupmaths

@standupmaths ... so a binary system of 'great-' and 'grand-' would mean my grand-great-great-grandmother was 1001 ~= 9 generations back

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Going a bit Office Space. Both my sellotape and stapler are missing. Don't make me go to the basement.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz Python plus Pancakes is a thing that could happen

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In reply to @Harsimrat__Kaur

@Harsimrat__Kaur like so:

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz it's right next to central station! Just get the metro.

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In reply to @vickytnz

@vickytnz I reckon it's between 5 and 10 minutes. I always switch to the shorter line, but it doesn't really matter

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In reply to @KSCMaths

@KSCMaths that's pretty common, and been in use for a long time

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In reply to @KSCMaths

@KSCMaths I don't get your complaint. It's valid but old-fashioned, which suits the torygraph perfectly

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Like British colonialism, the effects of last night's curry can still be felt today. #delicatetweets

1 favourite 1 retweet

My friends took me to Brew Dog last night and I drank hipster cola and now I'm addicted but it's £2.50 a bottle :( :( :(

0 favourites 0 retweets

In reply to @rmathematicus

@rmathematicus @peterrowlett @aPaulTaylor @stecks @aperiodical well, if you read the article, @BBCRadio4 didn't do too badly.

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In reply to @Harsimrat__Kaur

@Harsimrat__Kaur @C_J_Smith p starts with the downstroke then comes up to do the loop. \rho is a single anti-clockwise loop stroke

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In reply to @C_J_Smith

@C_J_Smith @Harsimrat__Kaur burn him!

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Currently annoyed that LaTeX's j wears its hat at a jaunty angle: checkmyworking.com/misc/makebigma…

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In reply to @Thalesdisciple

@Thalesdisciple I want the hat on top of the dot. \jmath looks horrible to me!

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Reminds me that Droid Sans has a ligature for 'fi' that omits the dot on the i. So annoying. RT @Thalesdisciple: have you tried \hat\jmath?

1 favourite 0 retweets

In reply to @Thalesdisciple

@Thalesdisciple it's the default font on Android phones. I've only noticed the ligature since Android 4.1

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Slides and a recording of a seminar presentation using @MathJax, deck.js and computer modern fonts in HTML: checkmyworking.com/2013/02/talk-c…

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz the link to "making a handcoded one-page site" needs an http:// or a / in front of it

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Buying cages for my new exotic birds shop, "Super Mario Plovers"

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK am I going to have to start a pro-your-nose faction? You've got a lovely nose!

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK unless it's currently full of gunk, in which case I resign to spend more time with my imaginary family

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In reply to @DanielColquitt

@DanielColquitt @Harsimrat__Kaur @C_J_Smith we were discussing this yesterday: does *anyone* prefer \epsilon to \varepsilon?

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Clearing out my room at my mum's house. The teacher who made me keep these randomly appeared in my office last week.

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My little brother's lifelong strategy of never putting a CD back in its case has paid off: I no longer own any of the things I own.

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Classic cp, circa 2004. Ouais, je parle muy gern il French. T'avais raison d'être impressed, Madame prof.

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♪ One of these things is not like the others / One of these is somebody's god♪

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In reply to @vickytnz

@vickytnz you'll be glad to hear that the school now tentatively accepts the existence of New Zealand.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz milk+lemon juice+5 minutes = buttermilk

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#neverforget

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How much hipster cola do you think I can get for these vintage game manuals? They are into vintage, the hipsters?

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Beginning to wonder if I had a sex change in sixth form...

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This looks like an algorithm for an AI to play Nulac. I ended up writing an MSN messenger bot which would host games

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Challenge: reconstruct the Nulac game.

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Man, what is the point in skimmed milk? It's like shy milk that doesn't want to inconvenience you by absorbing light or containing nutrients

0 favourites 1 retweet

I've just found a d30. Along with a d6 and a coin, I can generate any whole number of degrees. Might try a random walk...

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In reply to @GreyAlien

@GreyAlien I said nothing about how far I would travel.

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow hah! That's amazing. I can't think how what would get in print

0 favourites 0 retweets

In reply to @HoeJodgkiss

@HoeJodgkiss or, imagine getting loads of tattoos because you want to be alternative and then all of a sudden tattoos are trendy

1 favourite 0 retweets

Lucy Worsley made a new series and nobody told me? Outrage! bbc.co.uk/iplayer/episod…

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Hang on... I've seen this one before. iPlayer's "first broadcast" bit lied to me!

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That's it. I'm actually actually cancelling my emusic subscription now. They just keep breaking things on the site.

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In reply to @treasa

@treasa yep. Since they switched from credits to money prices so many good labels have left. Most stuff I get is from bandcamp or amazon now

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In reply to @treasa

@treasa bandcamp is like a service for bands to set up their own shops. Usually expensive, but you're paying the artists (almost) directly

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In reply to @vickytnz

@vickytnz it wasn't one of her best ones, but it was interesting and new to me

0 favourites 0 retweets

In reply to @TeXtip

@TeXtip much much better: unicodeit.net

1 favourite 0 retweets

In reply to @vickytnz

@vickytnz such a good song!

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Carlo Vega's lovely animation inspired by geometrydaily.tumblr.com now complete: vimeo.com/59125130#

1 favourite 1 retweet

"why are all my egg-related utensils yellow and white?" - idiot me, thirty seconds ago

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In reply to @vickytnz

@vickytnz I am grumbling too. I have many many punning business names that I want to collect

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In reply to @edbradshaw

@edbradshaw the number of times I've pressed ctrl+w while editing something on a web page...

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In reply to @vickytnz

@vickytnz pancake pancake pancake pancake. I'm having trouble concentrating on anything else

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In reply to @walkingrandomly

@walkingrandomly people's unwillingness to move from svn to git is baffling

0 favourites 1 retweet

In reply to @vickytnz

@vickytnz what are your pancake plans? Coming to mine after PyNE?

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I think I need to go on a salad-arranging course. Picking ingredients is hard!

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The number of people who have booked non-pancake activities on pancake day is astonishing

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In reply to @phillord

@phillord you mean like eprint.ncl.ac.uk ?

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In reply to @Bishnavitch

@Bishnavitch that's why you should stick to CP brand pancakes.

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In reply to @Bishnavitch

@Bishnavitch let them cook for longer. And more oil never hurts

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In reply to @phillord

@phillord sounds like a job for a summer student!

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Someone please come into maths-aid so I can warm myself up by speaking. #socold

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In reply to @rmehigan

@rmehigan @aoibhinn_ni_s positive quadratic function: distance travelled by a dragster or rocket with constant acceleration

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In reply to @ebuie

@ebuie ... what else would you say?

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In reply to @ebuie

@ebuie yuck. I'll stick with fortnightly!

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In reply to @ebuie

@ebuie hey, at least we can count - the French call it a quinzaine

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Booked a quiet room to record some @NclNumbas screencasts. An hour in, I'm still writing code for new features I just thought of.

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s @rmehigan you sure? Fairly sure it increases. I'm assuming the rocket keeps accelerating

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s s = ut + (1/2)*a*t^2. If acceleration is upwards or forwards, the t^2 term is positive.

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s you can make time a space axis, like the cameras for photo-finishes in races. Yes, finding visual examples is hard!

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s it's called "slit-scan photography" - en.wikipedia.org/wiki/Slit-scan…. Flatbed scanners do the same thing, so easy demo :)

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In reply to @peterrowlett

@peterrowlett @aperiodical @stecks it was really that loud. I didn't do any volume fiddling this time

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@DanaKazim even if you're not planning on doing numerics, being able to program is useful no matter what you do. Consider it a life skill

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Forgot to push my commits from my laptop yesterday. Replicate them today, or do something else until tomorrow?

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In reply to @Bishnavitch

@Bishnavitch youtube.com/watch?feature=…

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Poonikins the magic warrior princess youtube.com/watch?v=rt4p9A…

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In reply to @JanvierUK

@JanvierUK ANGRY MURALS

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This banana tastes green :(

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White Range Rover with a single occupant driving the wrong way up a one-way street. #brokenbritain

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In reply to @vickytnz

@vickytnz now I too have a cold. Somebody on pancake day was harbouring DISEASE!

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In reply to @C_J_Smith

@C_J_Smith @peterrowlett dare to believe! (oddly, I just remembered they hadn't been sent this morning)

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I vi. He whacks him vim in emacs. "Fie!" cry I, him dim put vim in emacs. He wax re VAX etc. I deny: Emacs be whack. developers.slashdot.org/story/13/02/16…

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In reply to @evelynjlamb

@evelynjlamb @CardColm you missed 0!

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In reply to @vickytnz

@vickytnz imagine if captain Kirk had a fazer!

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Just had to explain The Game to my ENTIRE family. Unbelievable! And sorry for making you lose

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eeeeee! cuteoverload.com/2013/02/13/you…

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Because I think I'm brilliant, the first thing I did with my Twitter archive was find all my pun business names: checkmyworking.com/2013/02/all-my…

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In reply to @haggismaths

@haggismaths that actually looks a lot more like a 3d print by n-e-r-v-o-u-s

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Scribblenauts knows 'rightwing' but not 'leftwing'. #classwar!

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I was expecting that summoning a "helpful wizard" would solve every puzzle in Scribblenauts. Disappointed.

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Hah!

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In reply to @vickytnz

@vickytnz that is some expert-level lunching! Is that the place on Brentwood Avenue that used to be Stewart and Co?

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Reading the latest arXiv additions is a great way to let new words osmose into your brain, even if you don't understand the papers

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Buying tiger balm for my new physiotherapy practice in Gosforth, "Knee Bother"

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In reply to @ben_nuttall

@ben_nuttall @Andrew_Taylor that's also how windows 8 works! Just remove most of the icons

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How much harder would it be to solve a Rubik's cube if you could only see one face? @MathsJam

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In reply to @stecks

@stecks of course! Silly me

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In reply to @vickytnz

@vickytnz are you mathsjamming tonight?

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Yikes! @MathsJam "@TobiasTeo: Here's to screw your brain for the day: twitpic.com/c4ubbp"

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In reply to @vickytnz

@vickytnz @TobiasTeo that's what maths is!

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Some relevant material for that puzzle: 'Knowable' as 'known after an announcement' journals.cambridge.org/action/display… ...

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... and "The Muddy Children: a logic for public announcement" phiwumbda.org/~jesse/slides/…

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In reply to @monsoon0

@monsoon0 much more readable, assuming you're not fluent in scholarly Latin, are his notebooks: cudl.lib.cam.ac.uk/collections/ne…

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In reply to @vickytnz

@vickytnz sounds awful! I think I've got away with only having a bunged up head for the weekend.

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Tiny reminder: Newcastle @MathsJam tonight, 7pm, the Charles Grey pub. This month I have puzzles and origami paper. mathsjam.com/index.php?cont…

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In reply to @stecks

@stecks @icecolbeveridge @peterrowlett MathsJam is an organisation? I thought we were at most a loose federation

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In reply to @icecolbeveridge

@icecolbeveridge @edbradshaw @stecks @peterrowlett this is quite possibly the most tedious Twitter conversation I've ever been involved in

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In reply to @DanielColquitt

@DanielColquitt do you live near a black hole or other nonstationary supermassive object?

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Locating premises for my new Newcastle-based cutlery steam-cleaning service, "Fog on the Tine"

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Can someone point an infrared camera at me and tell me how well my beard insulates my face? Reluctant to shave until I know

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The light covers on the new @My_Metro trains cover the top line of stations on the network maps. Such attention to every design detail!

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In reply to @standupmaths

@standupmaths yeah, so max( d(a,b), d(b,a)) <= 19

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In reply to @standupmaths

@standupmaths to be a dead-end a page would have to have absolutely no links. I'm happy for "anywhere" to mean "practically anywhere"

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@Nathan1123 I get "Sorry, downloading went wrong" when I search

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yes!!!! cuteoverload.com/2013/02/19/koa…

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@Nathan1123 yeah, every time

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In reply to @vickytnz

@vickytnz but look at their happy little faces! ʕ •ᴥ•ʔ

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When I leave my car, my seatbelt hangs limply out of the doorway like an automotive hernia.

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In reply to @MarcusduSautoy

@MarcusduSautoy @sciencemuseum fantastic! The maths room contains loads of fascinating stuff, but it's all so old!

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In reply to @aperfect

@aperfect graphics card drivers?

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In reply to @peterrowlett

@peterrowlett @icecolbeveridge @aperiodical yes, I'm listening... don't have any real internet this weekend though

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In reply to @pelagikat

@hornmaths my least favourite one of those is when they recommend a brand of completely artificial cheese

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Monkey seems happy enough in the wardrobe

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Outstanding: Outrun by Kavinsky grooveshark.com/#!/album/Outru…

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In reply to @Harsimrat__Kaur

@Harsimrat__Kaur LaTeX on android? Don't do it, your fingers will die!

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In reply to @rmathematicus

@rmathematicus do you know any more about the format of those Bologna maths competitions, or where to look?

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In reply to @Harsimrat__Kaur

@Harsimrat__Kaur have you tried writelatex.com?

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I think my parting and my barber are stuck in a feedback loop. Eventually all my hair will point sideways

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I don't even want a parting! Yet every time it seems to get more and more parted.

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In reply to @Electrokittie

@Electrokittie more food for thought: 'gandalf' backwards is 'fladnag', which could be a note taking during speed nating ("F: lad (nag)")

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Shaved off all my beard except my moustache and took a photo. Nobody must ever see it.

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In reply to @mathsinthecity

@mathsinthecity @OxUniConnect more strictly: by stretching and squeezing topologists, you can turn them into crazy people

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Having interesting maths on the blackboard is a work hazard. Zoned out of listening to a PhD's worries when I glimpsed a curious diagram

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In reply to @ThomasEWoolley

@ThomasEWoolley are you aware of the patent and mathematical formality controversies to do with the Gömböc?

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In reply to @ThomasEWoolley

@ThomasEWoolley I seem to have lost the stuff I collected about it, but the description here discusses it: thingiverse.com/thing:10190

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In reply to @ThomasEWoolley

@ThomasEWoolley so that's uncool from an open-access viewpoint (though they got the patent years before OA was a concern)

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In reply to @ThomasEWoolley

@ThomasEWoolley and there's still no rigorous proof that their particular shape is mono-monostatic - there's just an existence proof

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In reply to @elinoroberts

@elinoroberts "Deadline" immediately leaps out

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In reply to @woodwormcreates

@woodwormcreates @mathsinthecity is there one?

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Sublime. vimeo.com/18821259

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A particularly auspicious exchange rate

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In reply to @stecks

@stecks IT'S A SIGN metafilter.com/125224/Coming-…

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In reply to @aPaulTaylor

@aPaulTaylor or anti-cheese?

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In reply to @stecks

@stecks hahaha

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ARXIV.ORG IS DOWN AAAAAAAAAA

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and now it's back. Phew.

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In reply to @for_the_winn

@for_the_winn the IE 10 one obeys the rule that all pages on the web referring to a specific version of IE must be out of date

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STOP. Jammy time!

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In reply to @ninjaSiham

@ninjaSiham someone RTd one of your tweets and I just *have* to tell you your avatar pic is fantastic. Is that a real blackboard hat?

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In reply to @pelagikat

@hornmaths @monsoon0 if it helps, I don't do it

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Hey! What happened to the Turing pardon? services.parliament.uk/bills/2012-13/…

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Open Notepad. Type 0. Ctrl-A Ctrl-C Ctrl-V Ctrl-V. Repeat.

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In reply to @JanvierUK

@JanvierUK achewood.com/index.php?date…

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Endless Amusement, a collection of nearly 400 entertaining experiments in various branches of science publicdomainreview.org/2013/02/19/end…

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We find the overuse of the first-person plural in mathematical literature highly annoying.

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In reply to @JanvierUK

@JanvierUK that's OK.

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Good morning, spider friend! Don't mind if I take my shower, do you? ...... Now where did you go? Spider friend? #aaaaaaaaaaaa

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10am. Still nobody else in the office. Eat my lunch and pretend I didn't bring one in? Maybe.

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Well, I was already planning on going for a walk, so it isn't too bad that @My_Metro is stopped after North Shields

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But I do wish I hadn't brought quite so much stuff into work today

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Lots of boats parked outside the Tyne today

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Buying jangly things for my new sensory stimulation and meditation chamber, "We have nothing to hear but here itself"

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Who else is going to @streetspice_ncl tonight?

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It's finally done. I've cancelled my emusic account. What a catastrophe of a site.

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In reply to @peterrowlett

@peterrowlett I'm trying to leave a comment but the reCAPTCHA isn't loading :(

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In reply to @peterrowlett

@peterrowlett Yeah. And it seems I can't access google.com, so probably a CP's ISP thing

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In reply to @dr__bag

@dr__bag Top-notch paper-pointing there.

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Right Guard has changed its "Clean" flavour to smell like BO. I'm not smell-blind as well as colour-blind, am I?

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Sat in a seminar given by a speaker who writes his mathematical x as a simple cross. He might be an American spy!

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Diarrhoesis: Mötörhead

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March

Best Puzzlebomb yet. RT @aperiodical: It's that time again! Puzzlebomb - March 2013 wp.me/p2cimT-1Zj

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In reply to @ben_nuttall

@ben_nuttall indeed!

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In reply to @Bishnavitch

@Bishnavitch @aperfect @Electrokittie if I can chip in, my spider friend in my bathroom has been steadily growing for a few months now

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Challenge: think up most ridiculous "misogynist X", where X is a profession or activity. Misogynist accountancy?

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In reply to @noneatnamesleft

@noneatnamesleft it was alright. Good food, but very crowded and nothing mind-blowing spicewise

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The fridge cow is a sad casualty of the house move

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"Imagine... if you could laser renew your skin". Yes, just imagine... if you could laser file your taxes.

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In reply to @peterrowlett

@peterrowlett @aperiodical ahh you can get tae heck with the capitalisation-of-units nonsense. I've never had any patience for that.

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In reply to @vickytnz

@vickytnz it's grim! So grim!

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In reply to @vickytnz

@vickytnz stick with it, but it gets nasty (but not graphic)

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In reply to @DrSaraSantos

@DrSaraSantos @drkenfarquhar @NUStreetScience @MathsBusking before you know it you'll be taking logs

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In reply to @stecks

@stecks I ordered a pack of 100 googly eyes from amazon for £1.60 delivered. That's got to cost them money, right?

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In reply to @brittneybean

@brittneybean you, and the nation of Australia, have made my life worse. No thanks.

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Wow, @stecks and I have discovered the most addictive number game ever. To be revealed in number 3 of the All Squared podcast

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In reply to @darrenjw

@darrenjw the bus moves slower, so the radio waves can keep up

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Excellent. jimllpaintit.tumblr.com

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oh, this is very good indeed. I wonder if I can get away with downloading the entire database over the uni connection bigprimes.net

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In reply to @vickytnz

@vickytnz any attempt to get any sort of internet-based computation to happen while Wimbledon is on is always doomed to failure

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In reply to @vickytnz

@vickytnz @semiBad what for?

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The opposite of a shibboleth is a 'Frisco' metafilter.com/125607/occurs-…

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Goddamn Victorians can't pick an architectural style and stick with it. Just noticed the mix of Roman and Gothic arches at Tynemouth metro

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Nice little stories about maths told with animation, in French: voyage-mathematique.com/vid%C3%A9os/pe…

1 favourite 1 retweet

You know when a paper has a title this short that it contains a decent result. arxiv.org/abs/1303.0760

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Because I thrive on disappointment, I'm having another look at Moodle's SCORM code.

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Finally finally, my recaps of the last two Newcastle @MathsJam meetings: checkmyworking.com/2013/03/newcas…

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In reply to @vickytnz

@vickytnz I didn't write it down! I'll work it out again.

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In reply to @ben_nuttall

@ben_nuttall what are they? I miss my g-u-username from normal twitter

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In reply to @vickytnz

@vickytnz 1/9?

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In reply to @vickytnz

@vickytnz public announcement logic is a thriving field of study! Some fun slides at phiwumbda.org/~jesse/slides/…

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Penne pasta, pesto, pepper, pomodoro, and... if these had been portobellos, that would've been amazing. #mushroomsarentteamplayers

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oh wow! The list of all primes was 14gb, not 1.4! Extra bonus fun!

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In reply to @MrHonner

@MrHonner all primes (explicitly discovered so far)

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In reply to @stecks

@stecks which one? The next one, or the next next one?

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Weighing up whether to double our total expenditure to date on The Aperiodical in order to license the world's greatest stock photo

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Never mind, it turns out licensing stock photos is ridiculously expensive. For reference, here it is: corbisimages.com/stock-photo/ri…

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I haven't listened to arte radio in ages. The site is really nice now: arteradio.com

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Nice minimalist scientist logos by Kapil Bhagat. bhagatkapil.tumblr.com/post/442129491…

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You're not spider friend! In fact, what *are* you? Spider friend, you had ONE JOB

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In reply to @charliesgames

@charliesgames oh no! That ain't good! Time for a food hygiene purge

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@TwentyThree bummer! I don't use iTunes so I don't know what to do. What happens?

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@TwentyThree an iPhone-having friend has just downloaded it successfully. Try again?

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In reply to @vickytnz

@vickytnz yeah, I think that one's lacking some unhinged element the corbis one had. And they're American pancakes!

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In reply to @vickytnz

@vickytnz yes

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How did I manage not to notice the metroline hordes until I got off the train?

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What they've done is morally wrong, but it's beautiful. Zeroless arithmetic: arxiv.org/abs/1303.0885v1 (via @Gelada)

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Is Zeilberger the greatest troll in contemporary mathematics? Viewed as satire, I almost respect his output.

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Thanks to some judicious amazon ordering, @TweetsofCushing and I are going loopy with boggly eyes

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In reply to @vickytnz

@vickytnz yes indeed

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Trying out @songdropapp now it's a proper real thing. songdrop.com/christianp/goo…

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Stoker was very good, but this was me on several occasions imgur.com/gallery/Gw6zf

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In reply to @evelynjlamb

@evelynjlamb @aperiodical is the fake formula made up for PR purposes not a thing in the US? Our papers are lousy with them.

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In reply to @ColinTheMathmo

@ColinTheMathmo ooh! Can we meet tomorrow for coffee?

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In reply to @ColinTheMathmo

@ColinTheMathmo but...?

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 that's a great name! Like a character from a series of kids' books

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A problem with living alone: no sanity check on your appearance before leaving the house.

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In reply to @My_Metro

@My_Metro why do announcements say "no trains in both directions" instead of "no trains in either direction"? Is the first less ambiguous?

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Indulging in a bit of industrial espionage -slash- walking through the Northumbria campus for some exercise

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Since everyone's tweeting their female maths heroes, here's mine: Hazel Perfect, my only mathematical relative and a group theorist like me!

0 favourites 4 retweets

In reply to @C_J_Smith

@C_J_Smith @peterrowlett to Google Docs!

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In reply to @libraryncl

@nulibrs oh, I get it! Very clever

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In reply to @peterrowlett

@peterrowlett @NoelAnn can I talk to you at some point about Maths Arcade? I think we're going to set up something similar here

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In reply to @ColinTheMathmo

@ColinTheMathmo @stecks @helenarney is this a "hung/hanged" type situation? Should we say 'drinked' to refer to when a drink is consumed?

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz there is not, and I hadn't heard of it before! Thanks!

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In reply to @pkrautz

@pkrautz @MathJax @fgdorais I don't know. I could find out...

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In reply to @pkrautz

@pkrautz @MathJax @fgdorais do you have a blog somewhere that uses jetpack comments?

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In reply to @pkrautz

@pkrautz @fgdorais it won't work because the comments are in an iframe. There are plugins to allow social login on normal wordpress though

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Form says go to direct.gov.uk/taxdisc. Redirects to gov.uk/tax-disc, then a link goes to taxdisc.direct.gov.uk. #joinedupIT

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I really need to get round to presenting the results to the @aperiodical survey. Some people have given great answers survey.aperiodical.com

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In reply to @brittneybean

@brittneybean that's the second one of those I've seen in two days! What's happening? Is this the 90s revival I've heard so much about?

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I'm pretty sure there's money to be made in making man-sized household cleaning appliances. My back hurts!

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In reply to @standupmaths

@standupmaths A chum freezer-burnt his hand with an extinguisher during fire warden training. The irony was more delicious than any icecream

0 favourites 0 retweets

In reply to @helenarney

@helenarney @jjsanderson Lor' that was a terrible film! If only they had been bloggers, that might have improved it.

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In a jigsaw, you apply rotations and translations to the pieces until they fit. Could you make a puzzle with other affine transformations?

0 favourites 1 retweet

In reply to @Thalesdisciple

@Thalesdisciple I'm thinking of either a computer puzzle, or you could do something with optics

0 favourites 1 retweet

In reply to @Thalesdisciple

@Thalesdisciple so: start with 2d image; chop into pieces; apply different combinations of affine transforms to each piece

0 favourites 1 retweet

In reply to @pelagikat

@hornmaths the exact opposite of my current feeling

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Christ I just decided I need a spice rack why didn't any of you kill me before this happened

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WHAT IS THE POINT IN ONLY RELEASING YOUR MUSIC ON ITUNES AAAAAAAAAAAAAAAAAAA

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I stalled a yawn! Now I'm stuck in a half-yawn state and I think I might die.

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Wow, explorer has just blocked the entire shell, even window-switching. Windows 8, ladies and gents!

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In reply to @elinoroberts

@elinoroberts definitely snow at this end of the street.

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths hUSBris

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Successful salad. Succalad.

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@DanaKazim oh, you definitely can fail at salad. My last one was a complete nightmare

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If ONE more person pronounces it EYEdillic I'm going to TURN this planet round and NOBODY gets ice cream.

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This is the best snow we've had all year! It's like icing sugar. Mmmmmm

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@DanaKazim it is?

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As usual, @TweetsofCushing and I are spending our Monday morning well

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz well, it's getting warmer. What are you complaining about?

0 favourites 0 retweets

In reply to @SherriBurroughs

@SherriBurroughs @MathsJam Have a look at my Newcastle MathsJam recaps - checkmyworking.com/category/maths… - we've done loads of different things

0 favourites 0 retweets

In reply to @SherriBurroughs

@SherriBurroughs particular favourites: the princess in a castle puzzle and the card game Mad Abel

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In reply to @vickytnz

@vickytnz I haven't read it, but it's very very highly recommended by mathematicians. It's like the classic text

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I've woken up with a strong desire to see a linotype machine running. The printing museum in Lyon was great

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In reply to @libraryncl

@nulibrs it's the last week of term?! We should have a huge laser display board counting down the academic weeks somewhere on campus.

0 favourites 0 retweets

In reply to @libraryncl

@nulibrs I don't know why it bothers me, I don't get to stop working when the students go home, anyway

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In reply to @libraryncl

@nulibrs what a coincidence! I've just recorded a thing for my maths podcast about my favourite book, an arithmetic textbook from 1811...

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In reply to @libraryncl

@nulibrs ... it's a lot more interesting than it sounds!

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Is there such a thing as an Oxford semi-colon?

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I think I might be a chatbot

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This might be the best I'll ever do at triple town.

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What's worse than biting into an apple and finding half a worm?

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In reply to @vickytnz

@vickytnz I mentioned that, and other film maths, in the last aperiodical round up: aperiodical.com/2013/01/aperio…

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In reply to @vickytnz

@vickytnz but you always keep your house clean, even when your family aren't visiting, don't you? ;)

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In reply to @amermathsoc

@amermathsoc The King and Pi: in the vein of Lincoln, George III's attempt to get a bill defining pi = 3 through Parliament #pimoviepitches

0 favourites 7 retweets

Resisting the temptation to make purchases from this catalogue of blackboard drawing instruments wissner-germany.com/pdf/Drawing%20…

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In reply to @benjamintormey

@BenTormey that'll be you in a few years, watch out

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Pi Light: sparkly vampires do... something. I have no idea what even the basics of the plot are. #pimoviepitches

0 favourites 2 retweets

if you say so! RT @evelynjlamb: @christianp I think they get married? And there are lots of circles there. Cakes and rings and so on.

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In reply to @HilariousCow

@HilariousCow there?

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In reply to @jjaron

@jjaron I was shocked to discover when I got my nexus 4 that Listen had been discontinued in the middle of last year

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Glorious! Knitted taxidermy heads. jessicadance.com/THE-KNIT-HEADS

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In reply to @OxUniConnect

@OxUniConnect your mission control people are just downstairs from me! I feel an urge to go and interrupt their activities with custard pies

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@ProfKinyon except I'm likely to misremember that as "how I wish I could remember pi"

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In reply to @jjaron

@jjaron @aperiodical well, factoring in peer review...

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In reply to @jjaron

@jjaron @aperiodical "the chicken wanted to find a vector normal to the road"

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In reply to @kirkpatricke

@kirkpatricke Are you still doing your PhD or have you finished? One of the mathematicians is transferring to neuroscience and wants advice

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In reply to @kirkpatricke

@kirkpatricke is it ok if I give her your email address so she can ask herself? Twitter is too terse

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In reply to @kirkpatricke

@kirkpatricke I do.

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In reply to @evelynjlamb

@evelynjlamb thanks for the link to All Squared!

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In reply to @MarcusduSautoy

@MarcusduSautoy umm... universal computation is definitely maths, and in my opinion a much bigger innovation

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In reply to @MarcusduSautoy

@MarcusduSautoy aha! Anyway, my vote, even though I'm a computational group theorist, would go to calculus.

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In reply to @icecolbeveridge

@icecolbeveridge @standupmaths bravo

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Very nice! RT @panlepan: Fr!endly numbers.
RT @wilderlab: About 871 and 45361: 8!+7!+1! = 45361
and 4!+5!+3+6!+1! = 871

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In reply to @standupmaths

@standupmaths @wilderlab the next one is very easy to find, but after that...

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A lovely little poem fouragesofsand.com/2008/11/the-or…

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Those CGI disaster bits in the BBC's F1 intro sequence were a terrible idea

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Having top fun mishearing "rookie" as "wookiee" while watching the qualifying.

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In reply to @vickytnz

@vickytnz trying very hard, but I don't have the ready access to Star Wars quotes that is required of a true nerd

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In reply to @vickytnz

@vickytnz oh, that is an EXCELLENT t-shirt

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In reply to @vickytnz

@vickytnz are you planning on taking your family to Cragside?

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In reply to @vickytnz

@vickytnz it's a whole day visit on its own. Not that far to drive - about 40 minutes. Absolutely worth seeing

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In reply to @DanielColquitt

@DanielColquitt *really*? What's to like?

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Knitting and watching the rugby. #mansman #ladiesman... #notantonyms

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In reply to @helenarney

@helenarney as if that's a bad thing? Quite a few machines give fivers now.

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So far this year: Google killed Reader, Sky bought Be, Elsevier in talks to buy Mendeley. Next up: everyone has kidney failure.

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In reply to @Htbaa

@Htbaa oh I'm fine with that. Depending on your choice of axioms, anything can be false.

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This dude's facial hair looks like it cane with a free SEGA Dreamcast and a copy of Spaced on VHS

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In reply to @haggismaths

@haggismaths typo: "a 'one-dimensional binary cellular automata'" should be "a 'one-dimensional binary cellular automatON'".

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In reply to @numberphile

@numberphile yeesh, I'm so tired of all these people saying they did a bit of French at school and loudly declaring how bad they are at it

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In reply to @numberphile

@numberphile we need more high-profile French speakers who can communicate the beauty of French for its own sake. Maybe in a YouTube channel

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In reply to @numberphile

@numberphile sorry, I was being ironic. Replace French with maths

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In reply to @hellobuglers

@hellobuglers wow, I decided I'd had just about enough of that, and then I noticed I was only twelve minutes into over an hour of punning!

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@nulibsage is it ironic that that's published in a closed access journal?

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I don't understand wordpress user registration spam. What's the point?

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In reply to @Andrew_Taylor

@Andrew_Taylor @mathsfeedback @ColinTheMathmo my ears are burning. Can I add a question to my survey? My vote says 10% = 0.1. It's a ratio!

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In reply to @scienceatlife

@helen_keen @scienceatlife oh no! I was planning on going to see you tomorrow but you're on at the same time as @MathsJam!

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In reply to @Htbaa

@Htbaa :set expandtab

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In reply to @helen_keen

@helen_keen if only that were the case! You'll be missing a single-digit number of geeks, most likely

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Incredible. A 22-minute rock opera about milk. youtube.com/watch?v=FkCOiH…

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Newcastle @MathsJam is tonight! 7pm at the Charles Grey pub. All welcome. This month I have rational tangles and a permutations machine.

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In reply to @stecks

@stecks what is the stuff from the internet?

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Where is everybody? I've been in work for an hour and haven't seen anyone other than the cleaner.

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People who use correct, and correctly delimited, TeX in their arXiv abstracts are good people.

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In reply to @Andrew_Taylor

@Andrew_Taylor Push it to the limit! youtube.com/watch?v=ttKRX1…

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In reply to @Andrew_Taylor

@Andrew_Taylor @ColinTheMathmo now I need to find that page with the many many different ways people think of multiplication, don't I?

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In reply to @Andrew_Taylor

@Andrew_Taylor @ColinTheMathmo I can't find it! It was beautiful. It laid out each way of modelling multiplication (and numbers) so clearly

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In reply to @C_J_Smith

@C_J_Smith @peterrowlett @jan_e_grabowski more fair might be to say every time someone asks what's on the test, what's on the test changes

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In reply to @ColinTheMathmo

@ColinTheMathmo yikes. Twitter is not the correct medium for this.

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In reply to @Jackg00de

@Jackg00de @LeedsMathsJam I don't know about Leeds, but I write up each Newcastle MathsJam on my blog: checkmyworking.com/category/maths…

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In reply to @ColinTheMathmo

@ColinTheMathmo it was by something like nRich, but not nRich. Maybe Australian?

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In reply to @peterrowlett

@peterrowlett @ColinTheMathmo close, but it was a webpage and had like 12 or 16 models of multiplication

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I'm forced to use Powerpoint for this presentation I'm giving over Blackboard Collaborate. How do I make a non-terrible set of slides?

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Got a blister from scrubbing pans. It hurts a bit. #edwardianproblems

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In reply to @Bishnavitch

@Bishnavitch sorry, got a mega-cool LAN party planned already

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In reply to @ColinTheMathmo

@ColinTheMathmo I can't remember! That's why I needed to look it up! Everything about this is frustrating.

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In reply to @gwstagg

@Tegglington but I'll know. I'll know. And I'm not convinced Collaborate won't interpolate the bejeezu out of the screenshots.

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In reply to @peterrowlett

@peterrowlett where did you do that Numbas worksheet theme homework? Was it Keele?

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In reply to @ColinTheMathmo

@ColinTheMathmo YES! You are a winner!

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In reply to @ColinTheMathmo

@ColinTheMathmo and the better web-page version at naturalmath.com/multmodels/ind…

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The do it yourself till at waitrose worked with my own bag for the first time ever. 21st century living!

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In reply to @Andrew_Taylor

@Andrew_Taylor my phone's been having trouble too. Maybe twitpic is broken

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Another day, another proof of the Goldbach conjecture uploaded by an engineer to the arXiv. arxiv.org/abs/1303.4649

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You know those famously hard Microsoft interview questions? Where did the people who answered those well go? Certainly not the IE team.

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(Currently waiting for IE's developer tools to display a few-thousand-line javascript file) #hateIE

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In reply to @JamesMoosh

@JamesMoosh but the best at what?

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Wow, this is a terrible idea. github.com/tinymce/tinymc…

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In reply to @tinymce

@tinymce oh good. The reason I was looking is that IE crashes due to dom.get('mce_marker') returning null here: github.com/tinymce/tinymc…

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In reply to @tinymce

@tinymce the editor doesn't have focus because I'm doing things with a modal dialogue. Any ideas?

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If Fermat were alive today: "I have discovered a truly marvellous proof of this, but I can't be bothered to LaTeX it."

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In reply to @tinymce

@tinymce OK.. tried to register for the forum, didn't get a confirmation email, I've emailed the spam@ address.

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In reply to @tinymce

@tinymce thanks. I've just submitted my bug report.

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In reply to @ZaltzCricket

@ZaltzCricket as a real mathematician, that line has served me very well over the years when talking to the statisticians next door

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In reply to @stecks

@stecks took me a while to parse that as anything other than you telling your cohabiting boyfriend you've moved house.

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In reply to @stecks

@stecks it's the dot before @aPaulTaylor that made it right.

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In reply to @stecks

@stecks not authentic: it looks more ergonomic than the original

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can anyone think of a good symbol to denote "partially correct"? I currently have a percent symbol, which is bad cause it's next to a number

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In reply to @EliotBall

@EliotBall a bit too small. I'd prefer something the same height as a tick or cross

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ah! I could use a hollow tick. That would work, wouldn't it?

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In reply to @stevieb

@stevieb not immediately obvious, though

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What I went for was a grey cross instead of a green one. Sorry, monochromats!

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In reply to @miclugo

@madcaptenor wrong northeast, wrong parmo. You should be eating one of these: guardian.co.uk/lifeandstyle/w…

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A+++ would agree with again RT @sciSteve: These things! Anyone around 24+ should recall? They were so much fun. pic.twitter.com/7gHsESsn9o

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In reply to @Rosalot

@Rosalot no way! I don't know what happened to mine. Lost a couple of house
moves ago, maybe.

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I'd love Saturday Kitchen if it didn't have all these insufferable chefs on it.

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@DanaKazim that is incredible! Scan them all! Where are they from?

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I am currently playing A World of Keflings on the xbox. It's lovely. Does anyone want to join me?

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"Tip: female keflings are better than males at some tasks, and vice versa"... umm... Why did that need to be part of the game?

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In reply to @standupmaths

@standupmaths and you know he's keeping statistics on how people react to meeting him

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Windows keyboard shortcut mind-blown moment: Windows key+<0-9> switches to or opens the item at that position on your taskbar. #kabloom

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In reply to @ben_nuttall

@ben_nuttall I too have wondered this.

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The Holden ratio ♌ arises often in nature, most famously as the proportion of the volume of a real sensible car that an Australian ute fills

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An interactive 7-set Venn diagram RT @notemates: Hoy en esquemat.es/algebra/diagra… dos genios del diseño de datos @infobeautiful y @moebio

2 favourites 1 retweet

WHAT? youtube.com/watch?v=sdSJ1-…

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In reply to @mountain_ghosts

@jcoglan a tensor.

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People who use the Interrobang are glory-seekers. I'm more of an ACrobang person. #forreals

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Spider friend update: I hadn't seen her for a week. Yesterday I looked under the bath mat where I step out of the shower. RIP spider friend

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Somebody brought hot chocolate on the train! #require

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In reply to @peterrowlett

@peterrowlett how does your post-tweeting script work? I have a python thing which replaces HTML escapes with unicode if you want it

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Best tragedy in a while tragedyseries.tumblr.com/post/462768988…

1 favourite 0 retweets

I'm a huge fan of how long it takes Outlook to import my emails from my old student account. I'm getting so much work done!

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In reply to @knotunknot

@MadeleineS which is why I put the IPA!

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In reply to @knotunknot

@MadeleineS it's that down here too.

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In reply to @DeucharsIPA

@DeucharsIPA that's alright, I'm teetotal. The other IPA is an alphabet to help people from different countries understand each other

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In reply to @maanow

@maanow please use the double-acute ő for Erdős - see aperiodical.com/2013/03/porl-a…

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In reply to @ColinTheMathmo

@ColinTheMathmo this one looks a bit physics-oriented math.stackexchange.com/questions/1247…

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In reply to @ColinTheMathmo

@ColinTheMathmo this is almost definitely not what you saw, but it's interesting math-atlas.org

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In reply to @EulerLeonhard

@EulerLeonhard Some places should subdivide time into more or fewer parts - e.g. it could be 4/11/101/4 in Paris.

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Tonight: pheasant-hunting.com/web/index.php?…

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In reply to @stecks

@stecks on pheasant-hunting.com, pheasant is always an ingredient. It's like nobody lists oxygen for the gas to combust with.

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@DrMathS if you're going to use the #MathsJam tag, at least come to one!

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Oh wow. schemaverse.com

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I thought I had a new sequence! I didn't! oeis.org/A037008

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that previous tweet was an excerpt from my forthcoming memoir, "How I Fought the OEIS... and Lost"

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In reply to @vickytnz

@vickytnz you're going to be in London? Me too! Museums will be open. I'm going to the British Museum!

0 favourites 0 retweets

In reply to @newdiorama

@newdiorama do you have any press images for "The Universal Machine"? I'm writing a plug for it on a maths blog

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In reply to @vickytnz

@vickytnz Primark is very much an aspirational shop

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I just lost the best minecraft hardcore mode world I've ever had. I might cry.

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In reply to @ebuie

@ebuie always followed by "O'Reilly", I hope

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In reply to @DanielColquitt

@DanielColquitt haha. Whoever wrote that didn't do a PhD

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In reply to @standupmaths

@standupmaths

1 favourite 1 retweet

In reply to @JessWardman

@JessWardman @standupmaths we rescued a blackboard as it was being thrown out and put it in our office. It's the Lonesome George of the dept

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In reply to @ICMS_Edinburgh

@ICMS_Edinburgh I love that paper. A member in good standing of my Interesting Esoterica collection

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In reply to @standupmaths

@standupmaths

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In reply to @standupmaths

@standupmaths

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In reply to @pkrautz

@pkrautz @fgdorais and how would that help with mathjax?

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In reply to @fgdorais

@fgdorais oh right, yes

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In reply to @pkrautz

@pkrautz what's the latest with blackboard and mathjax? A lecturer wants to get students to write TeX in group assignments

1 favourite 0 retweets

In reply to @christianp

@pkrautz BB currently seems to let the script tag through and it's loaded, but seemingly not executed. Any idea?

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths (don't blame me, blame @TweetsofCushing)

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In reply to @scienceatlife

@scienceatlife could you use the Tesla coil as a PC speaker for some old DOS games? Maybe the Monkey Island theme? youtube.com/watch?v=a324yk…

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In reply to @outofthenorm2

@outofthenorm2 Winkler's book is a masterpiece. Very much a dipping-into book though. My brain overheats otherwise.

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Race against time: will my jumper be dry before I get my train? It's properly tense, the Run Lola Run music is playing and everything

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Londoners! Would anyone like to meet for a drink or whatever tomorrow or Sunday?

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I should just throw away my colourblind-unfriendly socks, shouldn't I?

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"Cod Is Dead" would be a terrible name for a chippy, wouldn't it?

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Why is it that whenever I need to get a real train, the metro breaks down? Something to do with the time of day?

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Have decided from now on to consider trips to London as taking place a year in the future and spend the extra £10 on first class. #legroom!

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In reply to @DanielColquitt

@DanielColquitt if they try some guesses, algorithms which don't work are not the ones used by ants.

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In reply to @ColinTheMathmo

@ColinTheMathmo the pigeonhole chapter in "Proofs from the BOOK" contains some beauties, and is a particularly accessible chapter

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I hope this plane photographed above Russell Square on google maps isn't a permanent fixture maps.google.co.uk/?ll=51.52208,-…

0 favourites 1 retweet

Any recommendations for good midprice dinner within 10 mind walk of Euston station? Pulled pork, Mexican or curry preferable

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In reply to @MatPaterson

@MatPaterson @JoVanEvery @icecolbeveridge all the reviews say the staff are enormously rude. When did you last go?

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Google maps on my phone is showing me floor plans of buildings! So clever!

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In reply to @Bishnavitch

@Bishnavitch how on earth did that happen?

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Adam Goucher is busy proving that 3d chess is Turing-complete on his blog. My inferiority complex grows. cp4space.wordpress.com/2013/03/30/thr…

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GOATS ON THE ROOF IS OPEN AGAIN! I AM THE HAPPIEST I HAVE EVER BEEN!

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In reply to @alisonkiddle

@ajk_44 ooh, that's a good coincidence! And happy 2^5th birthday for tomorrow

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April

In reply to @cbokhove

@cbokhove I originally had "quad error demonstrandum" but thought that was too far. Interesting that's the one mistake you picked up on...

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Still haven't had any easter eggs. My desire for chocolate has become a gnawing, animal need. I may start howling at the moon

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Hey @ColinTheMathmo, somebody else is doing @ProofinaTweet: @tinyproof

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett "overly" -> "overtly"?

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Blackboard still uses framesets... not sure how to feel. Am I disappointed? Was I not expecting it to be that awful?

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In reply to @vickytnz

@vickytnz all of the links to posts on vickyteinaki.com/blog are broken.

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In reply to @vickytnz

@vickytnz ahah, I've worked it out! vickyteinaki.com/blog is stripping prepositions out of the URLs

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For posterity in case anyone sees my Riemann "proof" from yesterday outside an April 1st context: I haven't gone *that* crazy yet.

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In reply to @haggismaths

@haggismaths it's "Wicks form"

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In reply to @peterrowlett

@peterrowlett @johndavidread hey! We have no way so far of knowing if my result was wrong as well!

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In reply to @MarcusduSautoy

@MarcusduSautoy I was quite worried for a moment until I realised it was the other North-East. I thought we'd been invaded!

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Just realised my webinar tomorrow is 7am GMT, which is 8am BST, so I get another hour in bed!

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In reply to @standupmaths

@standupmaths @MissJKDarcy Hey, you forgot these: ⌊ ⌋

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In reply to @knotunknot

@MadeleineS Buckfast in the 25th Century?

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Many moons have passed since I played this game.

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In reply to @peterrowlett

@peterrowlett thanks! Who were you hiding as? I didn't see your name.

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In reply to @peterrowlett

@peterrowlett haha. I was almost the same: Collaborate doesn't work with Windows 8, so I booted to Ubuntu. Had my telly PC on standby...

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"Jassology is a global theory on orientable maps which results from artistic experiments." I can't compete. arxiv.org/abs/1304.0719

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In reply to @peterrowlett

@peterrowlett you need the Oracle jvm instead of openjdk to start with, and then I think I had to do a bit more fiddling.

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In reply to @haggismaths

@haggismaths is that following the polyhedra with beaded beads paper?

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In reply to @haggismaths

@haggismaths certainly! It's tandfonline.com/doi/abs/10.108…

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In reply to @haggismaths

@haggismaths @wundalous better than infringing copyright, the authors have a preprint on their site myweb.lmu.edu/bmellor/Beaded…

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Dear Middle English, what happened to the infinitive of 'can'? It seems to have gone missing at this end. Yours sincerely, Modern English

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In reply to @libraryncl

@nulibrs ohh, the things I'd carry in mine... if I had one

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In reply to @stecks

@stecks @standupmaths @icecolbeveridge name a discipline it might find a use in... Correct, it's economics! latexsearch.com/latexFacets.do…

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In reply to @sxpmaths

@sxpmaths according to etymonline, 'cunnan'. etymonline.com/index.php?allo… Same root as modern German können/kennen

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In reply to @vickytnz

@vickytnz I'd like to, but I haven't had an invitation to Editorially yet

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In reply to @vickytnz

@vickytnz @MikePress it works! I'm writing in your document now. Can't see how to add comments or see versions though.

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In reply to @vickytnz

@vickytnz @MikePress we're not writing on the same thing at the same time, are we? I can't see your cursor or a way to add notes on sections

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In reply to @vickytnz

@vickytnz @MikePress ok, but I need to drive my nana to the airport in half an hour

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In reply to @byrichardpowell

@byrichardpowell I've written a computer algebra system in JS (plus an entire e-assessment system) that does some fun things.

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner hurrah for equal access to opportunity! That's why I don't do private tuition - I feel I should be helping those who can't pay

0 favourites 0 retweets

Windows 8: Press Ctrl-Shift-Esc. Start doing something else. Maybe browse a few sites. A while later, the task manager appears.

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The stock android calendar widget scares me so often by putting things which won't happen for a week right at the top.

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In reply to @MathsJam

@MathsJam "taust" is what Brummies eat, isn't it?

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The difference between ignorance and stupidity: while configuring Apache, I'm ignorant, and everyone on StackOverflow is stupid.

1 favourite 0 retweets

Does anyone know what this symbol is called? ⋜ It's like an upside-down \leq, but it isn't in detexify!

0 favourites 0 retweets

In reply to @nillie_kj

@nillie_kj @standupmaths because Matt is Australian, and every now and then he holds his phone like he would back home

1 favourite 1 retweet

@Nathan1123 yeah, I know that. But how is it different to "less than or equal to"? And more importantly: what's its LaTeX command?

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths as someone with a ridiculous name, I exercise with relish my right to pun on arbitrary properties of other people

1 favourite 0 retweets

In reply to @cawhitworth

@cawhitworth @alexcreid @YoshiDota2 UP HIGH! DOWN LOW! Aww @standupmaths, you got it the wrong way up again!

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@Nathan1123 @rockhyrax \eqslantless isn't quite right. If I was taking approximations, I'd go with \bar\lt

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@Nathan1123 @rockhyrax spooky! It's in the Computer Modern fonts - I spotted it on my cm webfonts demo page checkmyworking.com/cm-web-fonts/

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Font rendering on Ubuntu is so nice, but so tiny! Am I doing something wrong, or is that just how it is?

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aha! As I suspected, it's subpixel rendering plus funky fonts sams0n.blog.com/2012/01/23/mak…

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so "Don't Repeat Yourself" doesn't really work with Wordpress, does it? Such a massive hassle to abstract out repeated bits of this theme!

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In reply to @icecolbeveridge

@icecolbeveridge there's no link to Tanya Khovanova's posts

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In reply to @robeastaway

@robeastaway I feel that a contest to find the worst model which correctly predicts the winner of the Grand National would be fun.

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In reply to @aPaulTaylor

@aPaulTaylor I saw that! What terrible things science has wrought. Can't remember if I bought it as part of the 2-for-1 or not.

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In reply to @aPaulTaylor

@aPaulTaylor @stecks wot no black pudding?

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In reply to @icecolbeveridge

@icecolbeveridge and who comes out as winner with that model?

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In reply to @Electrokittie

@Electrokittie don't they teach you to do research on a journalism degree? jest.com/embed/199439/p…

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To whoever's job it is to sift the crank submissions to the arXiv into math.GM: I salute you.

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In reply to @icecolbeveridge

@icecolbeveridge incredible! I think you've earned your prize

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In reply to @benjamintormey

@BenTormey yeah, that's basically consent.

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In reply to @libraryncl

@nulibrs IT'S WHAT?! I've had more than enough of this now.

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In reply to @RGS_maths

@RGS_maths just noticed you followed my maths blog @aperiodical. You should think about coming to Newcastle @MathsJam!

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"Hi!" almost has a horizontal axis of symmetry. Not sure whether that's interesting or not, so I am putting it to twitter vote.

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Not doing a great job. MT @mathbabbler: I wasn't aware of this until today, but April is Mathematics Awareness Month. mathaware.org/index.html

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In reply to @RGS_maths

@RGS_maths second-last Tuesday of the month, at the Charles Grey pub - mathsjam.com/index.php?cont… (I am inviting you the teacher, not the kids)

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Want to touch the mammoth! Need to touch the mammoth! Booking tickets to Japan brb ksnowart.com/2010/12/07/the…

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Talking of Thatcher, there is a cutlery Pinochet at work in the office. My spoons have been disappearing, with no explanation.

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In reply to @vickytnz

@vickytnz nope! There's MIMA, which is mediocre, and a big wire funnel thing, and the transporter bridge

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In reply to @vickytnz

@vickytnz compare with the £200 my department just paid for a peaktime return to Birmingham on Thursday

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@josephdancey @vickytnz @refreshteesside it's a t-shirt! And it's from the Durham Miners' Gala!

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@josephdancey insulting people on twitter is a cool thing to do now?

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@josephdancey nah, no truce. Boro is a hole and I stand by that.

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About to shave my rather too long beard off. This is going to hurt.

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Late for work. Boss is also late, and on the opposite platform to go the long way round the metro line. Think I'll get away with it.

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Adventures in Flexible Working Hours

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In reply to @TimandraHarknes

@TimandraHarknes @jamesgrime turtles swim in the sea. At least, that's what my teacher tortoise.

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Oh wow, the National Rail Enquiries android app is so much better than Train Times UK

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Just realised that redbrick buildings must have a completely different meaning for people who can see the colour red!

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Like, is red brick noticeably red? Like how whitewashed buildings are noticeably white? My mind is blown.

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British trains! Does being a daddy long legs count as a special need? Yes, my bum's as far back as it'll go.

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Gott in Himmel that's a bad hot chocolate!

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Could we kickstart a tunnel through the Pennines? I think it would work; carrying on to Ireland could be a stretch goal.

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Very very disappointed that koalarentals.com.au does not do what it says on the tin.

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In reply to @jgrahamc

@jgrahamc depends on if you count proper names as words

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In reply to @vickytnz

@vickytnz faint?!

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In reply to @vickytnz

@vickytnz there's probably enough heavy metals in the air to induce a charge if you run around fast enough

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In reply to @vickytnz

@vickytnz so, good day in Middlesbrough then?

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In reply to @ColinTheMathmo

@ColinTheMathmo Aww, I'd noticed that too and was going to do an Aperiodical post! Still possible, I suppose

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Turns out @TweetsofCushing and I are allergic to Baby Elephant Walk

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It's a thing of beauty. RT @TweetsofCushing: My latest failure to find a new integer sequence: oeis.org/A016026

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All the cool kids are Sloanewhacking. RT @TweetsofCushing: But that has not deterred me in my integer seqeunce quest! #sloanewhacking

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After listening to The Cure for a while, we don't seem to be allergic to Baby Elephant Walk any more.

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In reply to @wilderlab

@wilderlab oeis.org/A085305 !

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In reply to @ICMS_Edinburgh

@ICMS_Edinburgh @elinoroberts I second that vote.

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In reply to @vickytnz

@vickytnz What One-Shot Joke Websites Can Teach You About Career Progression

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Clearing out the filing cabinets, we found this. Does it say "CP feeding study"? Was I the subject of an experiment?

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In reply to @jarofgreen

@jarofgreen If you don't mind ordering online, I just get mine from walktall.co.uk

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In reply to @JusSumChick

@JusSumChick I like that possibility less

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In reply to @peterrowlett

@peterrowlett the documents are MYSTERIOUSLY MISSING

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In reply to @stecks

@stecks TEACHER USING #mathsjam FOR EDUCATION PURPOSES KLAXON

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I am 100% with him. RT @maanow: Mathematician Objects to Platonist Patent System bit.ly/YvBvfq #mathnews

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Having read the article, I retract my support of the patents dude. I thought he was going to argue maths shouldn't be patented!

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In reply to @icecolbeveridge

@icecolbeveridge @stecks @standupmaths oh, that's a beautiful idea!

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In reply to @Samuel_Hansen

@Samuel_Hansen Congratulations! What are you doing?

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In reply to @ColinTheMathmo

@ColinTheMathmo @standupmaths @peterrowlett @icecolbeveridge @stecks how about something like jsfiddle.net/vRW8P/embedded… ?

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Take an English word. Use its first letter as the key to a Ceasar cipher. Decode that word using that key. Still an English word? Bonza!

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THUG -> MANY; GIG -> MOM; HEW -> OLD; NARK -> ANEW; WEAR -> SAWN; PORK -> EDGY. OAF -> COT. There are a few more.

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how have I not seen this before? mathapedia.com

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mathapedia.com is like the combo HTML+MathJax thing I made a few years ago, but done properly. Superb.

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Look what time I ordered my not-getting-home-for-hours misery burger yesterday!

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In reply to @peterrowlett

@peterrowlett @ColinTheMathmo @standupmaths @icecolbeveridge @stecks @ColinTGraham ha, have I hilariously ironically misunderstood mathchat?

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths Not sure if they have a name. The thought just occurred to me last night.

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @MathsWorldUK of course they're in the OEIS; I showed @wilderlab this yesterday: oeis.org/A085305

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#uksunshine NE30 5/10. Because let's be honest, it's almost as rare as snow.

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There's only one thing you can do on a day like this

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In reply to @vickytnz

@vickytnz how long do you need a place for? I know a few people in a similar position.

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths good thought, but I'd rather save that for something more impressive

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I found a program on my computer which composes haiku that evaluate to integers. No idea why I wrote it. github.com/christianp/exc…

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Y yallso ghuwnd ae bbrhufhryamm wuhecygh myachis a mmoccherw wfg thi wuelsh lyanygwaethi github.com/christianp/exc…

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The year I was born: 1986 = 489^1 + 2^9 + 2^8 + 3^6. github.com/christianp/exc…

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What I'm saying is, I've collected all the code I write when my mind goes on an excursion on github: github.com/christianp/exc…

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In reply to @Electrokittie

@Electrokittie I really want you to have made a pun on station but I can't see it.

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In reply to @elinoroberts

@elinoroberts yeah. I honestly have no idea where the map came from. But nobody gets "ghoti" in English first time, either.

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THERE'S A SECOND SERIES OF "I, Regress" AND NOBODY TOLD ME? bbc.co.uk/programmes/b01…

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In reply to @DrClimate

@DrClimate oh, the term "policy" is used by the computing people to mean the software is installed automatically on everyone's machine

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In reply to @DrClimate

@DrClimate a decent proportion of people do use version control, but there's no School Policy saying they have to

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In reply to @alisonkiddle

@ajk_44 bravo !

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11:23! Tell a fib!

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In reply to @standupmaths

@standupmaths am I too late to add that you can make your own 3D shape which flattens to a Penrose tiling? cp4space.wordpress.com/2012/09/01/act…

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In reply to @mountain_ghosts

@jcoglan that's just the worst.

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In reply to @vickytnz

@vickytnz another reason I live out here on the coast. Seagulls don't support football teams.

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cor, the forms on beatport.com are lovely. All ticky boxes and helpful information and... phwoar

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Indiamore by Chassol is so good. beatport.com/release/indiam…

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In reply to @elinoroberts

@elinoroberts ooh, that's a good idea! I will do a chocolate marble cake

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Today's lesson: never assume you have cocoa powder.

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I'ma let you finish Euler, but Gauss had the best birthdate of all time. OF ALL TIME.

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Why is the benefits cap being introduced first where there cost of living is highest?

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Wearing the deadly comfortable trousers AND comfortable jumper combo today. I might forget to do anything useful at all.

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What's that hot new punctuation you've heard all the cool kids talking about? It's the bangocolon!: the sexiest mark.

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so Google did just forget to do an Erdős doodle then?

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In reply to @EATng

@EATng that's a lot of males!

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There is an all-female Duran Duran tribute band called Joanne Joanne. Top tribute-punning. Thanks, @amazingradio!

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In reply to @mountain_ghosts

@jcoglan EmaciateScript

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Prepping final designs for my new line of pagers especially for expectant fathers, Justin Beeper. (They go "Baby, baby, baby ohh!")

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In reply to @jjaron

@jjaron lots of fun maths involved, particularly the fairness verification if they're doing it properly, but I still find bitcoin annoying

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Lefties avoid exact numbers? plosone.org/article/info%3… I'm ~100% sure this isn't true.

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My uni's librarians provide an invaluable service RT @nulibrs: “@EmergencyPuppy: Koala, napping. ”

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This adventure with mixed pickle might have been a mistake. I'm basically just eating raw chilis by the handful now

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In return for dropping the manifesto pledge to reform libel law, wily LibDem negotiators won the right to go next on the Commons pool table

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I bought a bum punnet of tomatoes. I reckon I've probably got ergot poisoning now.

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So when I type "localhost:8000" into IE's address bar, what does it interpret it as other than "http://localhost:8000"? And why?

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In reply to @daveowhite

@daveowhite I can sympathise! The google account for the @aperiodical's YouTube channel is "aperidoical". We're stuck with that forever.

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In reply to @jamessocol

@jamessocol @TedMielczarek MathJax can and does. It's really good!

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Stop being so rubbish, IE! I just want to work out why you're breaking! Your cooperation would help us both!

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#hateIE #hateIE #hateIE #hateIE

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Well, I give up. A DOM node inexplicably has no contents. Not sure I can do anything about that. I'm going home to cry. #hateIE

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In reply to @Sa3eedo

@Sa3eedo dude, I have to support IE8. Wouldn't be surprised if this bug still happens in IE10, though.

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In reply to @moebio

@moebio @bitcraftlab do you mean this? aperiodical.com/2013/01/art-by…

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It's been a quiet couple of week for cranks on the arXiv. Do they take the Easter holiday off?

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Yes sir, this is how I will be getting around from now on. beautifulcentury.tumblr.com/post/481614124…

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"Dear Christian, Seeing as you've unsubscribed from our email newsletters, you won't have heard about our ultra topical upcoming event".

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"You said you didn't want to hear from us any more, but we don't think you meant it".

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In reply to @mountain_ghosts

@jcoglan I gave my email address to a programmer at a conference, they put it on their PR list, I unsubscribed, PR person sent me that email

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In reply to @profkeithdevlin

@profkeithdevlin @stevenstrogatz wow, they did well not to use the letters "NP" at any point in that article. And they got the result wrong!

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The commute home is a bad time to get turbo flatulence. Glad I invested in the sphincter upgrade at the last checkpoint. #lifeisamundaneRPG

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I actively dislike both Les Mis and will.i.am but this is incredible youtube.com/watch?v=P3fjFt…

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It's so windy outside that things are falling over in here.

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In reply to @evelynjlamb

@evelynjlamb it's much easier to find your name in Champernowne's constant, and I can prove it'll definitely be there

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What's the most interesting arithmetic (sub)sequence of times? I reckon 12:12; 12:24; 12:36; 12:48 is hard to beat.

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In reply to @mountain_ghosts

@jcoglan well, there are countably many computer programs, so having uncountably many version numbers would be overkill

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Tonight Mr Perfect has nominated a Caesar Salad with Steak. Tricky, but if he pulls it off it's a high-tariff meal and would put him on top.

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The crowd falls into a hushed silence as he approaches the counter. You could cut the tension with a knife.

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The crowd goes wild! Just look at the judges' faces. They've never tasted anything so good. They're unanimous in their verdict.

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Now, while the engraver works his magic on the trophy, a short vignette in memory of the cow who gave her life so all this could happen.

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When I send an email I wish the universe would split in two, with one half where I don't send it, so I can pick the one that works out best

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(Don't worry, I'm not sending any serious emails, I just always get anxious initiating email conversations with people)

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In reply to @monsoon0

@monsoon0 ooh, I have loads of these. "How to explain zero-knowledge protocols to your children" pages.cs.wisc.edu/~mkowalcz/628.… ...

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In reply to @monsoon0

@monsoon0 'There is no "Uspensky's method"' dl.acm.org/citation.cfm?i…

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In reply to @monsoon0

@monsoon0 "Carrots for dessert" arxiv.org/abs/1003.3947

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The "I have no idea what I'm going to eat tonight"

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It's a lovely warm evening tonight. As the sun slowly sets, a person in a dinosaur costume is getting ready for a dip in the sea. #tynemouth

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A happy couple, plus some sand, in wedding gear. Two labs fighting over a tennis ball. A child just old enough to appreciate rockpooling.

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I wonder if that balloon will make it to Norway? It's heading in the right direction, I think

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As I've been sitting here, various wildlife has come to inspect me. Previously: a large grey gull. Currently: between five and ten flies.

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Now the dogs are gone, three boy mallards land in the lido with splashes. Time for their ablutions. Where were they waiting?

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For some at the the beach it's the silence that makes them smile. For this man, it's the sound of his Ferrari's engine breaking that silence

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Well, the sun can't see the beach any more, so I think neither should I. I'll stop tweeting rubbish now, too

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In reply to @aperfect

@aperfect I may or may not have eaten a whole melon, gone outside on a sugar rush, and got a bit poetic

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @stecks with NFC, phones can send messages to each other when they bump. Could you use that in a domino setup?

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I have generated a rather marvellous minecraft world, the seed for which this tweet is too small to contain

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In reply to @samholloway

@samholloway maybe it's the ice cream man's birthday?

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Huh? @laRadioNova is doing a programme about French pop, in English. I'm confused.

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In reply to @komiga

@komiga I have a bamboo. It's very far from the best tablet I've ever used. Not awful, but not great to draw with,

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In reply to @komiga

@komiga I don't do any serious drawing, but it just isn't very accurate

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This app which simulates and corrects colour blindness through your phone camera is excellent. play.google.com/store/apps/det…

1 favourite 0 retweets

In reply to @vickytnz

@vickytnz I think you just set a record for quickest response to a tweet

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In reply to @vickytnz

@vickytnz are you mathsjamming tomorrow?

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In reply to @vickytnz

@vickytnz ahh what, is Bright Club the same night? Rrrr, I wanted to go!

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In reply to @standupmaths

@standupmaths I feel that to progress any further in taking terrible photos you'll need to start using like a Game Boy Camera or something

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Sweet Jesus of Pizzus that's an attractive pie! Cajun chicken, caramelised onion, jalapeño.

1 favourite 0 retweets

Reader, let me tell you: the pizza delivered. Pity I'm not in Soviet Russia.

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Pretty! thisiscolossal.com/2013/04/smeare…

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Well done, music shuffle, today *does* seem like a Juana Molina day. #positivereinforcement

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Newcastle @MathsJam is tonight, 7pm, upstairs at the Charles Grey pub. All welcome. I have a cardboard computer(!) and a big book of puzzles

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Today is an IE debugging day. The wobbly dog is poised and ready to help

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Getting perilously close to a nice number of emails in my inbox.

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In reply to @ICMS_Edinburgh

@Mathematical_A @ICMS_Edinburgh that's probably true, but GCSE maths 100% speedruns are a fun way to pass time. I'm currently sub-20 minutes

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In reply to @christianp

@Mathematical_A @ICMS_Edinburgh (I had to do something to make tutoring prep interesting)

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In reply to @ICMS_Edinburgh

@ICMS_Edinburgh oh yeah, absolutely. But it's fun to do in a few minutes something that took an hour when I was little!

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In reply to @vickytnz

@vickytnz no: you didn't use "chuffed". You might qualify for Southerner, but not generic British.

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In reply to @vickytnz

@vickytnz looks like a scene from Wholander

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In reply to @icecolbeveridge

@icecolbeveridge oh no, not third derivatives again!

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In reply to @kirkpatricke

@SITP_NCL @kirkpatricke or you could sneak in a cheeky hour of maths before Bright Club starts

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If you've ever felt there's a Michael Jackson song title to express anything you want to say: You Are Not Alone. songfacts.com/artist-michael…

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I'm So Blue. There's a much more comprehensive list of songs at en.wikipedia.org/wiki/List_of_s…. What More Can I Give?

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In reply to @kirkpatricke

@kirkpatricke I haven't yet worked out how to attend SITP though. I will one day! ... maybe.

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In reply to @jjaron

@jjaron I clicked on that, but before it loaded I realised I never need to know anything more about Robert Scoble, so I closed the tab

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I've mistimed my mathsjam approach. Finished my dinner with 20 minutes to spare. Going to take a short walk around lovely sunny Newcastle

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I'm at work for 9am on the morning after a MathsJam. Unprecedented!

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In reply to @mountain_ghosts

@jcoglan definitely go to the Musée Lumière in Lyon if you haven't already.

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Definitely didn't accidentally switch the @aperiodical over to the new design a day early. Definitely not.

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Fed up with surly sandwich-makers, @TweetsofCushing and I have decided to open a new cafe with polite staff, called Cheese and Thank-you

0 favourites 1 retweet

In reply to @ben_nuttall

@ben_nuttall that's also due to PHP's calling convention though, isn't it?

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In reply to @michaeljgrove

@michaeljgrove @peterrowlett @stephenlee1643 fight the power! #don'tplaybytwitter'srules

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In reply to @haggismaths

@haggismaths "After the viva, which can last anything from 90 minutes to a gruelling five hours" - my friend's took eight. It was ridiculous

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just changed the name of my dev server's test user from "Testington Smythe" to "George Test". It's a bold new world.

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In reply to @ICMS_Edinburgh

@ICMS_Edinburgh @haggismaths goats? Goats on the roof! goatsontheroof.co.uk Goats can not be overrated.

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In reply to @Bishnavitch

@Bishnavitch there's also a herd immunity problem: kids who got the jab are also at risk because of how much measles they're exposed to

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In reply to @haggismaths

@haggismaths @ICMS_Edinburgh similarly, the many many many signs warning us not to run over red squirrels in Northumberland. Never seen one

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In reply to @elinoroberts

@elinoroberts I think I'm pro-cucumber, on balance.

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Good news everyone! I've been asked to find some arty maths to go on our department's walls. Before I check my archives, any suggestions?

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Batman, catwoman, ratchild, gnatfriend.

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In reply to @evelynjlamb

@evelynjlamb @henryseg would be among my first choices for sculpture, but I'm not sure if head of department just wants wall art, ie paper

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In reply to @henryseg

@henryseg that would be wonderful, thanks!

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@WarrenoN thanks, I'm aware of your nice blog. Are you aware of mine? aperiodical.com/category/colum…

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In reply to @mountain_ghosts

@jcoglan I think the problem people have is seeing the abstract structure that links all those different approaches, though

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In reply to @Bishnavitch

@Bishnavitch @aperfect I thought I was over 40K, and then I saw this: technabob.com/blog/2013/04/2…

1 favourite 1 retweet

Llama friend! en.wikipedia.org/wiki/Guard_lla…

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could Tynemouth be powered entirely on the heat given off by all the beach weeding fireworks? I think so.

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In reply to @Electrokittie

@Electrokittie ah, so maybe I did see Gary Glitter in town a couple of days ago?

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In reply to @Gelada

@Gelada suppose my department had not a lot but a modest amount of money to commission some 2d art from you. What could you do?

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In reply to @mountain_ghosts

@jcoglan Oh. That's good, then!

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In reply to @DanielColquitt

@DanielColquitt get github for Windows

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In reply to @DanielColquitt

@DanielColquitt no. Well, a couple of hours tops. But it's well worthwhile, and no version control is simpler

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Very cheeky! "Tyneside Pregnancy Advice Centre" ad on metro offering free advice to pregnant women. Tiny mention they're a Christian charity

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Claim: 50% of natural numbers are prime. Proof: checked by computer up to n=8. #lolzeilberger

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In reply to @My_Metro

@My_Metro the modernisation works have taken on human form?! What are you building?

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Finally, I understand how to draw a Hilbert curve! bit-player.org/extras/hilbert…

2 favourites 1 retweet

Looking at my bank statement, my balance was temporarily a palindrome. Pleasing.

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In reply to @ebuie

@ebuie hey, it's better than an overdraft!

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In reply to @ebuie

@ebuie that's OK, I did the conversion in my head. Add 32 and divide by 3.2, right?

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Using my colourblind-fixing app to find the mixed pickle I accidentally involved with the rest of my curry

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In reply to @vickytnz

@vickytnz MAKE A NEW ONE!

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In reply to @aperiodical

@aperiodical @stecks @peterrowlett oh no, that's a terrible idea! I tweet about my farts way more often than I tweet about maths

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Can it not just be an axiom of Amazon's music store that mp3 albums always cost at most as much as the CD version?

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Capybaras having a hot bath!! laughingsquid.com/capybaras-chil…

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Dogsitting in Peterlee for three days. Making a map of my moles, to compare with when I leave.

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.@stecks has inadvertently founded the Institute of Mathematics and its Implications. Pure maths only: no applications allowed!

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In reply to @phillord

@phillord you empathise rather than emphasise with the publishers, don't you? Should the paper you're talking about be in the bibliography?

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In reply to @haggismaths

@haggismaths @ICMS_Edinburgh Haskell Curry's middle initial was B. It *could* stand for Balti, if we all decide to make it so.

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In reply to @phillord

@phillord thanks!

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In reply to @mathhombre

@mathhombre I am because I wasn't aware of him. Thanks! That would work better as a comment on the post itself though

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In reply to @mathhombre

@mathhombre ohhh, it's *that* Tilman! I did know about him, from Geometry Daily. Do you sell anything, @Tilman?

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In reply to @Tilman

@Tilman super! Thanks.

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Are there more people with the title "Prof" than with the title "Sir", or the other way round?

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In reply to @icecolbeveridge

@icecolbeveridge yes he does. I thought of the question after seeing Prof Sir Tim Berners-Lee in an article

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In reply to @njj4

@njj4 looking at the US is a bit unfair: they don't have any Sirs

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In reply to @C_J_Smith

@C_J_Smith @icecolbeveridge yeah, I don't think too many profs are created each year.

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In reply to @monsoon0

.@monsoon0 oh, of course. I suppose I want all regal-conferred titles that go in front of your name but don't get you in the House of Lords

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100,000 members of the OBE worldwide, but no breakdown of how many are officers entitled "Sir" or "Dame". royal.gov.uk/MonarchUK/Hono…

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my dad's toilet has one of those weird disposable plastic toilet scrubber things. I feel like Sly Stallone in Demolition Man

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In reply to @standupmaths

@standupmaths I know how to get a letter of credit from the shopkeeper on Mêlée Island but not from my bank. Common 21st century problem?

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yo dawg, your javascript library is sweet but you used for(x in an_array) so we can't be friends any more

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In reply to @aPaulTaylor

@aPaulTaylor it includes all of an_array's methods too. For example, if you're using a polyfill to add map,filter,etc., those get included

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Just recorded an *incredible* interview for the next All Squared. INCREDIBLE.

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In reply to @gingerbeardman

@gingerbeardman as you shouldn't. It's incredible.

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May

In reply to @jjaron

@jjaron it does like to say it hasn't found anything while it's still looking. But it's also just bad. So it could be either!

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How many things are on sale in the UK priced 1 penny? Could I buy one of each?

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In reply to @vickytnz

@vickytnz oh wow! I just googled myself and only one link on the first page isn't about me! TAKE THAT, RELIGIOUS TYPES

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This advert with discount code TRAM1 on @My_Metro is still annoying me. Surely they can target things more precisely than "The North"

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In reply to @OxUniConnect

@OxUniConnect ha! At least that's technically correct, which is way better than Fox News normally manage.

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In reply to @DanielColquitt

@DanielColquitt campanology changes the view?!

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In reply to @DanielColquitt

@DanielColquitt I instantly felt regret at the expression of pedantry. Hope they've stopped ringing the bells!

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auuughh I didn't go to the right school I have no idea what valediction to end this email with why am I so common aaaaaaa

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In reply to @icecolbeveridge

@icecolbeveridge I've always gone with "cp". I think it's better aesthetically than a big C.

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In reply to @icecolbeveridge

@icecolbeveridge well, that says something about you

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In reply to @moebio

@moebio use patterns instead

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In reply to @moebio

@moebio use dashes then!

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I've been doing $1\!,\!000$. Turns out you can just do $1{,}000$ to get thousands separators to have the right spacing in TeX,

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In reply to @DanielColquitt

@DanielColquitt scientific notation for amounts of money seems odd

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I'd like to think the girl this busker's staring at is inspiring a melodic flight, but he's just playing the same four notes over and over

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In reply to @NautilusMag

@NautilusMag since it looks like you paid so much attention to design: why aren't mathematical variables in italics? nautil.us/issue/0/the-st…

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In reply to @tombutton

@tombutton booooo! Get off the stage!

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In Barter Books, I saw something that might please @standupmaths

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In reply to @gingerbeardman

@gingerbeardman where's that?

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In reply to @peterrowlett

@peterrowlett :) I've been meaning to do this for a long time.

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I love it when people hashtag the rhetorical device they've used, in case the full force of what they said wasn't obvious. #sarcasm

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I spent all that effort noticing that the code for ö-umlaut is an arithmetic sequence, and Chrome starts interpreting numpad-4 as back? #poo

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In reply to @divbyzero

@divbyzero ooh, that's very nice! (And our best lecturer starts his first-year course every year with "minimum" and a warning to be careful)

1 favourite 0 retweets

@DanaKazim are you?

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I've written up my recap of March and April's Newcastle @MathsJam: checkmyworking.com/2013/05/newcas…

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It both sounded and smells like someone's barbecue just blew up

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In reply to @elinoroberts

@elinoroberts no, I'm at my mum's in Washington

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Complete low blood pressure moment. I am all wobbly. This hasn't happened in a while.

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In reply to @stevenstrogatz

@stevenstrogatz "math class is tough!" - D. Zeilberger / Teen Talk Barbie.

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In reply to @PaulWatsonNcl

@PaulWatsonNcl hah, that looks fun! I'll make sure to go

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if I had a cybernetic implant, it would be a modular oblongata

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There were mitigating circumstances. RT @TweetsofCushing: watching @christianp trying to prove that 19 is prime!

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The biggest tie ever was over 4000km long, around Croatia's borders: academia-cravatica.hr/projects/reali…

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Micro mayhem! vimeo.com/64585891

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Dude in a taxi outside the strawberry arguing with his driver about the validity of a note from the Clydesdale Bank

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Best animal failing to stay awake video yet youtube.com/watch?&v=LGrps…

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my flat is FREEZING. I should be thankful, considering how hot it is outside.

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In reply to @ColinTheMathmo

@ColinTheMathmo @samholloway @ajk_44 For your consideration: oeis.org/A056809

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In reply to @libraryncl

@nulibrs euch, so many undergrads using the wifi! Going to have to spend my maths aid hours making origami again...

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In reply to @alisonkiddle

@ajk_44 on the subject of fun ages, I'm currently n^n, n ∈ ℤ, for the last time ever

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When information mysteriously goes missing from your gmail address book: rrrrrr!

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In reply to @gingerbeardman

@gingerbeardman it's the alert noise that accomponies the revelation that my old phone wasn't saving *all* my data to gmail.

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In reply to @christianp

@gingerbeardman accomponies? A kind of horse? I felt the need to acknowledge the typo.

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In reply to @gingerbeardman

@gingerbeardman I think it was the custom HTC thing; my contacts are full of <HTCDATA> xml nonsense

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Today's vim magic: `:au BufWritePost *.tex make` - recompiles TeX files when you save them

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Staying at Birmingham University for the night and I can't connect to eduroam. Nothing else to do apart from go to sleep, then.

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Apparently ncl.ac.uk is a "protected resource" on Birmingham's network, for which I need to go through their shibboleth.

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but newcastle.ac.uk is fine. Weird!

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In reply to @mountain_ghosts

@jcoglan I got 99 data representation problems but ambiguous encoding ain't "1".

1 favourite 0 retweets

In reply to @numberphile

@numberphile WHAT?

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Look what I found at Tynemouth market:

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"Mercedes have annexed the front row". Suspiciously unfortunate phrasing about the German team

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This is a great game: from a random street view image, work out where you are geoguessr.com

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Oh! The episodes of One on iplayer are new! Super. bbc.co.uk/programmes/b00…

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Instant retraction, they're five years old. What happened to the (R) on the end of programme descriptions?

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In reply to @ebuie

@ebuie would have worked better with the letter A. Demand you relive your life accordingly.

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@PerudoJedi @TraineeGeek @MathsJam I'm sure we could break out the Geordie enigma machine if you have some messages to send

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I haven't remembered what I need from the shops after 10 minutes of thought, so I might as well set off now and see if I remember on the way

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PAPER PLATES! Took until I was stood in front of them, but I did remember

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In reply to @Bishnavitch

@Bishnavitch you know they're just being cosmopolitan and choosing complementary colours to go with the furniture.

1 favourite 0 retweets

Aaaaaa that ford advert where he high-dives through the car gives me the juddering jeebers. Can not handle no no no

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In reply to @pkrautz

@pkrautz have you seen this? blogs.msdn.com/b/oldnewthing/… Microsoft people exist in a scary universe

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All of @Tilman's Geometry Daily prints have free shipping today: society6.com/Tilmn/prints

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In reply to @numberphile

@numberphile probably best to use infinite scroll, so segments are only loaded if the user scrolls down. I can make something if you want

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In reply to @numberphile

@numberphile I'll have a go then email you

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Talking to @numberphile about a number file

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In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge rather than make all the dollars mathmode, you can do \$ to tell MathJax not to interpret a $ as maths

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In reply to @icecolbeveridge

@icecolbeveridge oh, then you need processEscapes: true in your config. Also, putting dollars inside <span> tags breaks up maths.

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Alexey Taktarov has used my deck.js template and added some neato interactive graphs: molefrog.github.io/pidnn-talk/

1 favourite 1 retweet

(my template is on github at github.com/christianp/dec…)

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In reply to @ThomasEWoolley

@ThomasEWoolley I thought you'd forgotten about it!

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In reply to @Bishnavitch

@Bishnavitch see also Channel 4

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths aka the "Prime cousins-70,000,000-times-removed" conjecture

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In reply to @numberphile

@numberphile I've just had an idea! If you wanted to show all of that number at once, you could do a gigapan: gigapan.com

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Good lord, yet another Sambuca has opened. When's the leveraged buyout?

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The back cover of the book this person is reading on the metro looks fascinating. Not sure how to angle myself to see the spine

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TeX plod day three: 40 pages down, 380 to go. This had better be worthwhile... #texplod

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In reply to @icecolbeveridge

@icecolbeveridge it's worse: it isn't even my TeX! I'm cleaning up someone's course notes to go on the web

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How do we feel about $a/b$ instead of $\frac{a}{b}$ for inline fractions? I'm slightly anti.

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In reply to @icecolbeveridge

@icecolbeveridge even though \frac fractions are tiny tiny in inline mathmode?

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In reply to @icecolbeveridge

@icecolbeveridge good, we agree

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In reply to @relinde

@relinde @peterrowlett @aperiodical we stated it as "sum of three ODD primes". 7=2+2+3 is the only one you need an even prime for

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In reply to @jamesgrime

@jamesgrime aww, that's the image I was trying to make this morning. I went with infinitely many pears instead

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In reply to @mathemaniac

@mathemaniac please allow me to make your day: jeff560.tripod.com/stamps.html

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the reference number on this letter from my car insurance company is suspiciously short. Am I their only customer?

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In reply to @COOLIO_FEAT_LV

@HELIUM_HEED :(

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In reply to @vickytnz

@vickytnz I will always hold a soft spot in my heart for Austria's insane Latin Kryner fusion entry a few years ago: youtube.com/watch?v=9VdFY6…

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In reply to @christianp

@vickytnz (soft spot may or may not be dirndl-provoked)

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In reply to @vickytnz

@vickytnz but it has yodelling!

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Forget eurovision. Austria on its own puts out enough terrible music for the entire continent youtube.com/watch?v=hWxnGE…

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So sorry. That dude is clearly Dutch. And in fact, I can only find foreigners recording terrible music in Tyrol. Worst form of tourism?

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Newcastle @MathsJam is next Tuesday! 7pm at the Charles Grey pub. I will have a Correntator, a set of Hex, and a book of logarithms.

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Randomly generate a Turing machine on a 2d grid and see it run. This one explodes after a while: wry.me/hacking/Turing…

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In reply to @peterrowlett

@peterrowlett I think it either wasn't correct, or I don't understand why it is correct

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In reply to @christianp

@peterrowlett I started a comment on the post on the site, but was stricken by doubt

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A short guide to LaTeX math: ftp://ftp.ams.org/pub/tex/doc/amsmath/short-math-guide.pdf. Because I'm a cool dude, I already knew most of it

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In reply to @peterrowlett

@peterrowlett yeah, so what I said wasn't true

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ChromeVox, a text-to-speech engine for Chrome, now reads out maths! It's not too bad. chromevox.com/release_notes.…

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... actually, it does a pretty terrible job of reading anything more complicated than a polynomial. Stretched symbols are particularly poor

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In reply to @FOTSN

@FOTSN Nerds, I haven't seen you give a single Beamer presentation. Can the scientists in the audience even understand what you say?

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In reply to @Jokerman21

@Jokerman21 @peterrowlett 11 = 5+3+3; 23 = 11+7+5

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In reply to @libraryncl

@nulibrs @nulibsage converse is not the same as the contrapositive. Opposite of that statement is "people who don't prefer screen are old"

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In reply to @christianp

@nulibrs @nulibsage Whoops, I just gave you the contrapositive! Point was, "A implies B" does not mean that "not A implies not B"

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In reply to @libraryncl

@nulibrs @nulibsage unless you were saying you couldn't comment on the story because you're not young. Jeez, what a mess I've made.

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wow. The hold music for this company's cancellation department is a funeral march

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In reply to @miclugo

@madcaptenor that's so illegal!

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Today's notation question: $_nC_r$ or $^nC_r$ ?

0 favourites 1 retweet

In reply to @Thalesdisciple

@Thalesdisciple this might be a British thing, but I've never liked that, and rarely seen it used, because it looks like a column vector.

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In reply to @samholloway

@samholloway yeah, that's my opinion, but I've seen $_nC_r$ enough times that it made me wonder if there was some justification for it

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really quite annoyed that spambots have found survey.aperiodical.com and filled the first question with 11,000 horrible sex adverts.

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Weirdly, they haven't bothered spamming any of the other questions.

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In reply to @lostinrecursion

@lostinrecursion is that just the convention you're used to?

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In reply to @lostinrecursion

@lostinrecursion is there a rationale for either one? I'm used to the superscript one, and I think it looks nicer too

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Having fun listening to this album while I work: youtube.com/watch?v=1_8zh4…

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re: $_nC_r$ or $^nC_r$ or $\binom{n}{r}$: Imagine if there were this many different ways of writing exponentiation. We'd all go mad!

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I can't find anything in Cajori about choose/pick notations. Dude was an amateur scholar

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In reply to @ebuie

@ebuie a WHAT? Tell me more!

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In reply to @tim_hunt

@tim_hunt haven't read that yet, but yes - zenzizenzizenzic is my favourite maths word

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In reply to @ebuie

@ebuie @CannyCreative @RichardCarter I think what they're really advertising is the nitrous oxide used to whip the cream.

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Where I can normally see the sea from my front door, today I can only see brilliant white. Am I in the Truman Show?

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In reply to @ebuie

@ebuie @vickytnz I had a debit card in the US and never used a PIN. It can't be very widespread.

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washingtonpost.com/blogs/worldvie… Worst colour scale. Here's what I see. (via @moebio)

2 favourites 4 retweets

"Chop 6 cups of kale". WHY WOULD YOU MEASURE KALE IN CUPS IT HAS A HUGE FRACTAL DIMENSION. #americans

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Does the shape of farfalle make them take longer to cook? WAIT I HAVE A BOOK FOR THAT

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@DesktopGamer I think for kitchen measurements, the size of a cup is fairly standard: en.wikipedia.org/wiki/Cup_(unit)

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In reply to @vickytnz

@vickytnz did you find anyone to watch Eurovision with?

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In reply to @vickytnz

@vickytnz you can come out to Tynemouth if you like. I was planning on seeing the Late Shows, but I don't have the energy for walking

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The best thing about these @aperiodical stickers I made is that now I'm making up excuses to send people things so I can use them.

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not a single scientist at CERN has had the wherewithal to set up the "Euro Fission Song Contest". Poor show, science!

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Does anyone have an opinion on whether eurovision has got worse or better over the years? Does that concept even apply?

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YES! I managed to eat the melon before it went off! #homeeconomics

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Like IQ? RT @DanielColquitt: @christianp I think Eurovision has its own scale of terrible-ness. Each year the scale is simply recalibrated.

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In reply to @standupmaths

@standupmaths @aPaulTaylor "modestly viral" - you are the common cold of internet sensations.

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In reply to @ebuie

@ebuie or, giffgaff do a similarly good deal without a contract:giffgaff.com/goodybags#data

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In reply to @ColinTheMathmo

@DanielColquitt @ColinTheMathmo well, @outhofthenorm2 just said Leibniz used planets: blog.stephenwolfram.com/2013/05/droppi…. Or you could use hieroglyphics

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I have reached peak idleness. A hard-fought campaign of doing nothing all weekend has culminated in a powerful case of stir crazies

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In reply to @icecolbeveridge

@icecolbeveridge yes, I saw it mentioned somewhere a few days ago. Can't believe it's a thing.

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The scenery painters failed to even get as far as the sea today. I can just about see halfway down the street. It must be the shorter nights

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Am I the only one who, whenever it's this foggy, immediately thinks of Turok? #PowerVRrepresent

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Newcastle @MathsJam is tomorrow, 7pm, Charles Grey pub. I have a mechanical calculator from the 1920s and a new boardgame. All welcome!

2 favourites 1 retweet

In reply to @sxpmaths

.@sxpmaths the board game is probably not new to other Jams - it's Hex.

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There's a map of all 33 current, and some potential, MathsJams around the world: goo.gl/maps/lb6mk

2 favourites 4 retweets

In reply to @TraineeGeek

@TraineeGeek we have an Enigma, yes.

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Who is telling marketers that sending blogs infographics to republish is a good idea? We've had more than a few to The Aperiodical

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I love paying big wodges of cash to get packages out of customs, me.

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Found a prime-numbered metro carriage! Only took two days of factorising the carriages I've been on. #reasonsIlookmentallytroubledonthetrain

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:(

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In reply to @icecolbeveridge

@icecolbeveridge @stecks @MathsJam I'll ask for the wifi password at our pub tonight and we can have a go at a google hangout

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Newcastle @MathsJam is tonight, 7pm at the Charles Grey pub! Can we solve 1811 arithmetic problems with a 1920s calculator?

1 favourite 1 retweet

In reply to @JanvierUK

@JanvierUK from?

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Today's metro carriage: 3^3*149

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In reply to @Bishnavitch

@Bishnavitch yes! For once I am able

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In reply to @outofthenorm2

@outofthenorm2 your bees post has taken so long that metafilter has gazumped you :( metafilter.com/128287/The-arc…

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In reply to @haggismaths

@haggismaths ant colony. On a huge scale, this guy did some amazing casts of termite colonies: core77.com/blog/architect…

1 favourite 0 retweets

In reply to @Bishnavitch

@Bishnavitch I'm outside

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In reply to @MouldS

@MouldS the paper folding one is the most impressive. I want to play with it!

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Person before me at the pump bought a palindromic amount of petrol. I like to think that was deliberate.

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In reply to @DanielColquitt

@DanielColquitt just price. Hard to arrange otherwise

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In reply to @DanielColquitt

@DanielColquitt I think it's already been a twitter Thing. I have some python code somewhere

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In reply to @elinoroberts

@elinoroberts if only you'd looked at our graphs: aperiodical.com/2012/05/grow-y…

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In reply to @samjbasak

@samheadleand @stecks @MathsJam here you go: github.com/christianp/exc…

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"Britain's sausage renaissance" is my new name for Downstairs CP. economist.com/news/obituary/…

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In reply to @stecks

@stecks ok, imma let you finish, but @aperfect took the best baby goose photos of all time. OF ALL TIME! flickr.com/#/photos/aperf…

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In reply to @evelynjlamb

@evelynjlamb hah, did you like it?

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In reply to @standupmaths

@standupmaths @peterrowlett I think this can be summarised as: mathematician makes joke; other mathematicians spend afternoon explaining it.

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In reply to @peterrowlett

@peterrowlett @standupmaths @stecks I was referring to what's been going on on twitter

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In reply to @icecolbeveridge

@icecolbeveridge please, no more maths police, at least for a while

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Just used the word 'subtrahend' in a git commit. github.com/numbas/Numbas/… #literateprogramming. #notwhatliterateprogrammingmeans

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In reply to @standupmaths

@standupmaths going to assume the obvious pun reply to that tweet was implicit when you sent it

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@Rokker816 it was alright. Not as good as nachos though.

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Hooraaay, all my friends doing their stupid postgrad degrees have finished their exams. I have friends again!

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Bisous Les Copains! defringe.com/bisous-les-cop…

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Diagnosis: algebraist. (cf. survey.aperiodical.com/question/50d81…)

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In reply to @jamesgrime

@jamesgrime I agree, except: look how big the little professor is!

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My beard is at exactly the right length and softness today. If I was fresh out of a people factory, this is what my beard would be like.

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Few people mention the consolation provided by a beard when discussing the pros and cons of being a grown up man. I'd say it outweighs taxes

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In reply to @icecolbeveridge

@icecolbeveridge Dave didn't listen to the Aperiodcast, he listened to All Squared

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In reply to @vickytnz

@vickytnz coffee?

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In reply to @vickytnz

@vickytnz I need to be in a seminar at 2.30, so I could meet you in Jesmond on my way home after that?

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In reply to @vickytnz

@vickytnz I'm setting off for jesmond now. Be there in around 15 minutes

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SUDDEN OVERPOWERING CRAVING FOR DOUBLE DIP

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In reply to @mike_geogebra

@mike_geogebra very nice!

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how much is Gap going to spend on showing me ads before they realise I left their site because they don't sell trousers as long as my legs?

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In reply to @icecolbeveridge

@icecolbeveridge that's not a demonstration of the central limit theorem. It's the binomial distribution. I can't see a quincunx either

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In reply to @icecolbeveridge

@icecolbeveridge that's really weird. A Galton machine needs a triangular number of pegs

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In reply to @icecolbeveridge

@icecolbeveridge CLT says the *mean* of the binomial is normally distributed over many samples, like any mean, but the normal approx...

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In reply to @icecolbeveridge

@icecolbeveridge ... Let me retract that halfway. Binomial is repeated Bernoulli tests, so I suppose the normal approx does follow from CLT

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JISCMAIL doesn't set the List-Post header. That makes me sad.

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In reply to @vickytnz

@vickytnz typically no

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In reply to @vickytnz

@vickytnz actually, I can read this - jsfiddle.net/6gNhm/ - but it's a strain on the eyes

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Working in Maths-Aid this afternoon. If one more student points to something on their iPad with the tip of a biro...

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In reply to @peterrowlett

@peterrowlett hooray!

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June

Ant battle update: I'M WINNING! The floor is littered with tiny corpses. I'm not cleaning them up, _pour encourager les autres_.

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I'd stick their heads on tiny pikes if I could. Who knew I was a mediaeval tyrant? #CPtheterrible

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In reply to @vickytnz

@vickytnz and it hasn't been ruined by a Cliff Richard song, either

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In reply to @ebuie

@ebuie nah, I just have garden ants somewhere. A line of talc has stopped them. Nowhere near as crazy as the ants you get in the US.

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In reply to @vickytnz

@vickytnz my respect for your country has diminished

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Is there just a sea fret here in Tynemouth? Is it sunny in Newcastle? I was promised sunshine!

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In reply to @vickytnz

@vickytnz @ebuie there's a Baha'i tree in Exhibition Park, near the military vehicles museum

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gosh I like this a lot artdecoblog.tumblr.com/post/515724320…

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13:11! Keep your enemies close and your primes closer

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#tynemouth

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Growing to resent the lady on the opposite side of the street who has a front patio which gets sunlight.

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In reply to @lyd_w

@lyd_w you have reminded me that I own a panama for days exactly like this one. Thanks!

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In reply to @SparksMaths

@SparksMaths are you a caTENary chap or a CATenary heathen? Or even catEENary?

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Considering running a public service campaign to encourage version control at work, titled "Ve Haff Vays of Making you Fork"

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Made a little chap. Not sure what he's for but I like his style

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WHERE IS EVERYBODY? Is it a bank holiday or have the clocks moved or what? The village is deserted

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In reply to @jamesgrime

@jamesgrime yes! I haven't been able to get anybody enthused about the awesome end credits, despite repeated showings

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In reply to @standupmaths

@standupmaths are you sure you're not inadvertently in their new reality show, "Trusses and Tresses"?

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In reply to @RlPWOO

@wildaboutmath thanks for the mention. There's a typo: "Aperidical" instead of Aperiodical.

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In reply to @RlPWOO

@wildaboutmath ... and the link to Tony Mann's blog has ?m=1 on the end of the URL, which forces the mobile view.

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Eee! @TweetsofCushing has made some very cute little elephants

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This is what happens when you try to construct a polyhedron without doing any sums

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In reply to @vickytnz

@vickytnz imposed for fear that the BBC had an unfair market advantage

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In reply to @evelynjlamb

@evelynjlamb I got 99 problems but they all reduce to 1

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Aw man.

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In reply to @jamesgrime

@jamesgrime @aperiodical @peterrowlett he seems more like a computer scientist than a mathematician to me

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Argg, my first week with my summer students next month is turning into faculty committee hell! I don't like being a real member of staff :(

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In reply to @michaeljgrove

@michaeljgrove hope so. In the first week I have: a university strategy consultation, the school IT committee and a workshop to give in York

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Not just my eyes but my whole face is weeping with joy at how good those fajitas were. #aycaramba

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In reply to @vickytnz

@vickytnz seriously? I can't think why anyone would think that would be a good idea.

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In reply to @vickytnz

@vickytnz (an interview in Starbucks, I mean)

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In reply to @turingfest

@turingfestival githib? There's a typo on your speakers page

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AAAAAAAAAA CONVENTION OVER CONFIGURATION IS A TERRIBLE IDEA AAAAAAAAA #webframeworks

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Time for a change on my dev server: the test user has changed his name from "George Test" to "Testeban Gutierrez"

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#testusers RT @icecolbeveridge: @christianp Teston Blumenhhal?

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Gloria Testefan #testusers

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Daniella Testbrooke #testusers

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In reply to @migerh

@migerh of, that one doesn't rhyme

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George Testinghouse #testusers

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In reply to @rockhyrax

@rockhyrax I don't get that one

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In reply to @ColinTheMathmo

@ColinTheMathmo the specs are usually quite readable. Here's Edexcel's: edexcel.com/migrationdocum…

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In reply to @libraryncl

@nulibrs spoilers! I'm following @RealTimeWWII so I've got another three years to wait.

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Just walked past a bus stop with an eight letter "short code". Nexus apparently plan to have between 8 and 200 billion bus stops.

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Spaces between words in Microsoft Word seem to be decided at random. Is it to do with the font renderer? It's annoying.

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In reply to @alexbellos

@alexbellos change your twitter password and check your approved apps!

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In reply to @alisonkiddle

@ajk_44 I have a few saved for the next MathsJam: paste.roguecoders.com/p/cbcaf0d25caf…

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In reply to @peterrowlett

@peterrowlett @Andrew_Taylor @aperiodical ... and I put it in the queue a few days before that. We're all busy!

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In reply to @peterrowlett

@peterrowlett yeah, I was going to point it out in the editorial comments, but I haven't touched the site all week due to busy times

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In reply to @peterrowlett

@peterrowlett @Andrew_Taylor if anyone does write about it, have a look at Google+. David Roberts in particular has been keeping up to date

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In reply to @ebuie

@ebuie @vickytnz I gave them the benefit of the doubt and assumed they're only using letters. The code was something like twmngjgp

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In reply to @ebuie

@ebuie @vickytnz yes, as I said...

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Middle management Kenneth Branagh is on the train. You might remember him from his role in last year's stationery contract renegotiation

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In reply to @vickytnz

@vickytnz no. Instead: why didn't the word "grrlz" stay in the 90s? There is nothing good about it. It looks like a Polish side-dish

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#Unveröffentlichemusikimradiospielenzorn

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In reply to @aperfect

@aperfect it's a good film! I have it on DVD!

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In reply to @aperfect

@aperfect can't begin to imagine how a radio play version would work.

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yessssssss! RT @ajhmurray: BREAKING #notnews! 7 Day Saturday! Tomorrow! #5Live! With @ZaltzCricket @wiggywalsh @kevinhunterday

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In reply to @aperfect

@aperfect ah, like my mime performance of 4'33"

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In reply to @mathshistory

@mathshistory is that the opposite of working out?

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Why you don't even rely on curated tags: boss has consistently misspelt 'auxiliary' as 'auxillary' across the entire database

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In reply to @monsoon0

@monsoon0 yes, very funny. Of course, 13×7 = 13: arxiv.org/abs/1107.1130

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In reply to @jjsanderson

@jjsanderson ooh, there's probably some maths you can do on the volume of the packet to decide that

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In reply to @knotunknot

@MadeleineS I've sometimes thought that, but a prescriptivist phone would be way worse to live with than a prescriptivist person!

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In reply to @jjsanderson

@jjsanderson I was thinking that intact crisps can hold the sides of the packet apart. So maybe the volume doesn't change but the shape does

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In reply to @Gelada

@Gelada @divbyzero I didn't! So I've just bought Amazon UK's last copy.

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In reply to @CardColm

@CardColm excellent! Do you want to arrange a podcasting date now?

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Meeting the pope later to discuss my idea for a convent based on an airship, called "Nun of the Above"

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In reply to @gwstagg

@Tegglington because LaTeX is not a formal language, and because MathML exists. @MathJax is trying to get browsers to add MathML support

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In reply to @gwstagg

@Tegglington HTML5 does have a <math> tag, for MathML to go in.

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In reply to @gwstagg

@Tegglington it is. But if mathjax only needed to do the TeX->MathML conversion and the browser did the rendering, that would be way better

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At long last the war is over. Meeting the ant queen's legate later to discuss reparations and repatriations.

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In reply to @henryseg

@henryseg where are you moving to?

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The incoming tide has stranded hundreds of humans. Hopefully the coast guard will arrive soon to push them out to sea

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Going to ask the family across the street with the garden that gets sunlight if they'll adopt me

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The BBC F1 coverage has fallen to bits. Did they forget to write a script?

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In reply to @vickytnz

@vickytnz you'll be pleased to know I fixed the video width thing on aperiodical.com

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Gron preee!

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In reply to @ben_nuttall

@ben_nuttall who's your new isp? I don't use TPB, but I'd like not to be on be/sky

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I've just ordered rather a lot of toys for our new Maths Arcade. Exciting!

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Möbius dudes!

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This towers of hanoi set is rather posh amazon.co.uk/Tower-Hanoi-Wo…

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It's not even the most expensive one I found. Who has £55 for this: amazon.co.uk/Square-Root-SQ… ?!

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In reply to @lostinrecursion

@lostinrecursion were you inspired by wholemovement.com ?

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So far this morning I've listened to Louise Attaque and Dionysos. I might go out and buy a denim suit next

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There was no integer sequence review yesterday. We did one, but it was a disaster even by our standards, so we didn't publish it. :(

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In reply to @vickytnz

@vickytnz oh no! Does this happen to all New Zealanders if they don't get a haircut often enough: bbc.co.uk/news/world-asi… ?

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Yesterday we learned that @TweetsofCushing is a functor on the category of gifts. What will we learn today?

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In reply to @icecolbeveridge

@icecolbeveridge yes, they're just very low.

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I believe it was Gauss who introduced "BOOM!" as a more exciting alternative QED to mark the end of a proof. @gaussfacts

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In reply to @tynesidecinema

@tynesidecinema Talking of Tautou, is Moon Indigo going to be shown in the UK, or has it already, or what?

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In reply to @lostinrecursion

@lostinrecursion cookie pizza?! What is this magic?

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Among many other errors, this posthumous monograph by Erdős spells his name with o-umlaut. Blame Diaconis? projecteuclid.org/DPubS?service=…

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In reply to @stecks

@stecks well, I'm going to go and sit in a corner now, and never look at the internet again

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In reply to @vickytnz

@vickytnz for some reason, whenever I dm you it comes from @NclNumbas.

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This time next week we'll be MathsJamming! I run the Newcastle one (it's the best). Find the nearest one to you: mathsjam.com

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Day 1 of @mathsarcade deliveries. Fun fun fun!

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Challenge: use every one of these number stickers (and any letters) to make 32 as any ways as possible

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.@TweetsofCushing came up with a nice integer sequence today: gist.github.com/christianp/576…

1 favourite 0 retweets

Tom has informed me that Wednesday 31st is the least common day/date combination, and we'll have one next month. Slightly rarer than pi day.

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(Tom is @Rokker816. 398 Wednesday 31sts in a 400 year cycle; 400 pi days).

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Saw "Contest raises students' horizons" on an info screen today. It's still annoying me.

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"Rigour" - @CaptainGove

1 favourite 4 retweets

!!!! youtube.com/watch?v=hpxWTt…

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In reply to @icecolbeveridge

@icecolbeveridge @C_J_Smith I'd need to take my head out of my hands to read that, so I haven't

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Double :( RT @charlesrandall: Oh :( destructoid.com/dead-rising-3-…

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My new plan for cheap space travel: install a basketball net on the moon. Michael Jordan can dunk it.

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In reply to @standupmaths

@standupmaths I almost bought some off shapeways in my recent toy-buying binge. I'll get them off my fave mathmotainment emporium instead!

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In reply to @libraryncl

@nulibrs what? It's clearly the Iron Giant cf.drafthouse.com/_uploads/galle…

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In reply to @MouldS

@MouldS @mmaarrow @standupmaths seems to be mainly drawn from ams.org/notices/200501…

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In reply to @MouldS

@MouldS @mmaarrow @standupmaths I also have a proof that there are finitely many funny jokes but this twitter is too small etc etc

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When I push excellent code this starts playing. I don't think it's diegetic. youtube.com/watch?v=hTTQ-q…

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In reply to @libraryncl

@nulibrs @HattonGallery ooh, that does look good!

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"Missing an indeterminate number of legs" #neverusedtodescribeaperson

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"Wearing a come-hither expression." #neverusedtodescribeacentipede

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In reply to @evelynjlamb

@evelynjlamb @katemath @divbyzero @MrHonner can I make a British bid for "custard cream theorem"? nicecupofteaandasitdown.com/biscuits/previ…

1 favourite 0 retweets

In reply to @CardColm

@CardColm Zamyatin lived in Newcastle! I discovered this when I was looking for a flat and found his blue plaque

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In reply to @CardColm

@CardColm probably not - when Zamyatin was in England, Blair was 13

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the new google maps is so awful! So unresponsive and unintuitive and un...everything

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In reply to @monsoon0

@monsoon0 omg! Lobsters are exactly the class of solutions to the "princess on a graph" puzzle checkmyworking.com/2011/12/solvin…

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Drawing up a health and safety plan for my new plush toy cleaning service, Teddy Gross Felt

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Those who know me know I'm a big fan of novelty plate sets. These are fab: food in my beard plates cargocollective.com/phildesignart/…

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In reply to @vickytnz

@vickytnz I remembered yesterday that Bagel of the North had closed down, and it made me sad.

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I DON'T NEED A RECEIPT WHEN I EMAIL A LIST, JISCMAIL.

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AUGHHHH RT @samholloway: @christianp This is to acknowledge safe receipt of your last tweet.

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett I thought it would be, but I couldn't find where to set it

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In reply to @peterrowlett

@peterrowlett ah! Found it. It was under "subscribe or unsubscribe". JISCMAIL is a UX nightmare

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In reply to @DainaTaimina

@DainaTaimina is this something you're interested in? I've been trying to find someone to interview about maths+activism for my podcast

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WHOAH. Wordpress has a fullscreen editing mode. It's really nice!

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Some journals charge weirdly specific prices for individual papers, as if some market force has pushed the price down 25p..

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In reply to @aperfect

@aperfect I have that paperchase one. I bought it for like a pound when Borders closed. Grids are best anyway.

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In reply to @MouldS

@MouldS @stecks @FOTSN and if, say, Prince joined FOTSN, you could have a bijection of syllables in your names <--> {1,2,3,4}.

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In reply to @DainaTaimina

@DainaTaimina ok, maths+politics then. I love the story of Mayor Mockus in Bogota en.wikipedia.org/wiki/Antanas_M…

2 favourites 0 retweets

Newcastle @MathsJam is tomorrow! 7pm, Charles Grey pub, mathsjam.com/index.php?cont…. I have many new books and some IDEAS.

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Tonight: Cumberland sausages on spicy Mexican rice. Will it work? Should it work? I experiment so you don't have to.

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In reply to @NautilusMag

@NautilusMag Joey Comeau wrote a very sexy maths story: asofterworld.com/math1.html

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In reply to @monsoon0

@monsoon0 @aperiodical who is she? I can't find her on the list

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In reply to @monsoon0

@monsoon0 ahh, I misread Carpenter as Carter! dohhh

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In reply to @monsoon0

@monsoon0 you could also have just written a comment on the post...

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619 followers! Everybody find your upside-down buddy and rotate a half-turn. #symmetriesofmyfollowers

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In reply to @monsoon0

@monsoon0 can't argue with that

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In reply to @vickytnz

@vickytnz you lucky devil!

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In reply to @peterrowlett

@peterrowlett @stecks we're going to cross 200,000 all-time views on the site this week, according to the stats tracker

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In reply to @standupmaths

@standupmaths you really shouldn't wear the same colour as your chroma key screen, Matt. #colourblind

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I've written up last month's Newcastle @MathsJam just in time to walk down to the Charles Grey and start the next one checkmyworking.com/2013/06/newcas…

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I found an unloved book of logarithms in Barter Books. Choo choo! vine.co/v/hB2A9KxA5iI

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In reply to @MathsJam

@MathsJam 73

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In reply to @MathsJam

@MathsJam we are ready

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In reply to @hughhunt

@hughhunt @MathsJam WW

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In reply to @HampshireLawyer

@HampshireLawyer @MathsJam black

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In reply to @aPaulTaylor

@aPaulTaylor @MathsJam Black

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In reply to @JusSumChick

@JusSumChick @MathsJam WWW

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In reply to @hughhunt

@hughhunt @MathsJam BBW

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In reply to @aPaulTaylor

@aPaulTaylor @MathsJam W

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In reply to @JusSumChick

@JusSumChick @MathsJam all the right colours but in the wrong order! BWWW

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In reply to @JusSumChick

@JusSumChick @MathsJam A WINNER! Well done.

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In reply to @JusSumChick

@JusSumChick @MathsJam we've had enough mastermind

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In reply to @peterrowlett

@peterrowlett go on, I'll do one. I've proofread enough of your stuff already

0 favourites 1 retweet

There should be a day every year to celebrate Peter Ustinov's voice acting in Disney's Robin Hood

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Uh oh, @CSIROhelix included a link to my OEIS review in their newsletter. #corruptingtheyouth us4.campaign-archive1.com/?u=6ae8427d1f6…]

0 favourites 1 retweet

The scariest founding father by far was Bill O'Frights, but the only guarantee of liberty is saying his name three times in a mirror.

0 favourites 1 retweet

Tipover puzzle no. 12. vine.co/v/huBDJ2MrijA

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Crikey O'Reilly! Vine was lying to me about that video not being uploaded

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My keyboard needs a button labelled "none of this is any good" and it should close my browser window and then shoot me into space.

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In space, none of the terrible people on the internet can reach me with their opinions about each other's opinions.

0 favourites 2 retweets

In reply to @stephenjbrooks

@stephenjbrooks @DanielColquitt and java 'programmers' call their dog ClassDogBeanFactorySingleton

0 favourites 0 retweets

In reply to @Nat_Numeracy

@Meliden @Nat_Numeracy that's not what the report says: it says in half of secondary schools, *many* pupils have weak skills.

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In reply to @Nat_Numeracy

@Meliden @Nat_Numeracy the way the BBC says it implies that half of schools have no pupils with weak skills

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@nulibsage that link goes to the webofknowledge search page

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In reply to @haggismaths

@haggismaths you can be clever at the end and point out it's down to < 60,744. aperiodical.com/2013/06/bound-…

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I've just uploaded a load of videos from our NUStats DVD to Vimeo. Quality's not great, but they might be useful. vimeo.com/album/2429385

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Where do publishers come up with these prices for articles? £32.37 for this one: ingentaconnect.com/content/routle…

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In reply to @BParkEd

@BParkEd it works. Was it just a sneaky advert?

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Flying to Wyoming to scout locations for my new convalescence home for introverts, Cheyenne Retiring

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In reply to @maanow

@maanow do non-humans, say, dogs, interpret statistics more correctly?

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NONSENSE FORMULA ON @BBCr4today KLAXON

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An easy carriage to factorise today.

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Pearson have a desk at the psychology conference downstairs. Suggestions for ways I can add value to it, please

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It might take me six months just to gather together all the sources for this post about the HoTT book. #hott

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I think I'm actually going to read HoTT. It certainly looks approachable.

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In reply to @sxpmaths

@sxpmaths it's way, way beyond that. But thanks for reminding me we should do another recreational maths seminar

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In reply to @samholloway

@samholloway are you up for long?

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In reply to @vickytnz

@vickytnz is it any good?

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In reply to @vickytnz

@vickytnz actually, mind if I join you?

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In reply to @tim_hunt

@tim_hunt thanks for reminding me I still haven't read it. I think our library has a copy...

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This old dude is staring at me like he can read my thoughts. If so: hi, old dude! If you can see my shopping list, that'd be great.

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Where does Google Now get its weather data? It predicts rain about as accurately, and as often, as the Kaiser Chiefs predict riots

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Can I get home before my right shoelace finishes untying itself? Sheesh, this is more intense than Run Lola Run

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In reply to @sxpmaths

@sxpmaths the shoelace untied itself while I was writing that tweet. Retied it like a pro, sent the tweet, then wallowed in my dishonesty.

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In reply to @icecolbeveridge

@icecolbeveridge @ChrisHazell72 somewhere in Whitby, a sub-editor is struggling to stop laughing long enough to get to sleep

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Was the iPhone named after Jony Ive?

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In reply to @stecks

@stecks @Quendus going to assume that's with replacement.

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The Creatures games are in a pay-what-you-want bundle! indiegala.com

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In reply to @Gelada

@Gelada it could go on @aperiodical while you look for a respectable journal?

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In reply to @icecolbeveridge

@icecolbeveridge @aperiodical @Gelada well, @stecks has already coined the Institute of Mathematics and its Implications

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grumblebums, Creatures 2 doesn't work on windows 8.

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In reply to @AlgebraFact

@AlgebraFact it was 69,999,998 away

1 favourite 0 retweets

Wahey! New Hurley/Fraser Bedazzled is on Film4. Nobody say anything: I don't care.

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Oh man, it actually is a bad film. Much like Elliot Richards and the secret to happiness, this was something I needed to discover for myself

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In reply to @mathhombre

@mathhombre I hope you make liberal use of @gaussfacts

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Auggh! When you Google "christian perfect" (don't ask why I was), the first autocomplete suggestion is "christian perfect eyebrows"

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Turns out it's a range of eyebrow stencils for the terminally classless/hairless. I think I'll go with "mysterious"

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In reply to @GreyAlien

@GreyAlien Sun "does maths" to position self in sky

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bbc.co.uk/news/health-22… links only to elifesciences, not even the journal, and especially not the paper, which seems not to be published yet

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Academic PRs join music industry PRs in counter-productively promoting things before they're available. WHERE ARE THEY TAUGHT THIS?

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In reply to @peterrowlett

@peterrowlett sadly, it turns out there isn't a site dedicated to finding me, and me alone, a woman.

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In reply to @peterrowlett

@peterrowlett @TimHarford haha, that is a sick burn. Anyway Peter, cool kids talk about these things in the @aperiodical news queue ;)

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In reply to @peterrowlett

@peterrowlett what? It's the ultimate secret gig!

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In reply to @ebuie

@ebuie if you've been here longer than six months, you need a UK driving licence to do any driving.

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In reply to @ebuie

@ebuie whoops, it's 12 months. gov.uk has a nice flowchart: gov.uk/non-gb-driving…

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In reply to @ColinTheMathmo

@ColinTheMathmo I didn't see the program. Is it the Ian Knot? fieggen.com/shoelace/iankn…

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Hmm, old-timey sums, eh? Time to break out the ol' Correntator vine.co/v/huYm5h7aXx9

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"Download the BBC iPlayer radio app to watch on the go". WHAT IS THIS MODERN HELL?

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Turns out only the first 10-15 spoonfuls of butternut squash and bacon soup don't taste like old sick.

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Pitch: cut together all the footage of romcom characters running through the streets of New York into an entirely new film about a foot race

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Iron chef challenge: chicken nuggets, mozzarella and red peppers. Any ideas, anyone?

0 favourites 0 retweets

In reply to @Electrokittie

@Electrokittie no?

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In reply to @Bishnavitch

@Bishnavitch @Electrokittie but I take the metro through meadow well every day, which you refuse to do

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In reply to @stecks

@stecks It's bold, I'll give you that.

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In reply to @stecks

@stecks I feel like the bits of chicken need to be a bit longer

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In reply to @stecks

@stecks the diameter of my nuggets is too small yo!

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Notre Dame cathedral in Bruges has a Reuleaux triangle-shaped window kmoddl.library.cornell.edu/tutorials/02/.

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I've also read that the same shape occurs all over Amsterdam, but can't find any photos. theurbangeographer.wordpress.com/2013/03/20/reu… Anyone? @mathsinthecity?

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Is this what you meant, @stecks?

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Tonight's findings: plus.google.com/11130061692066…

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Exploding Actresses 2: Love Movies youtube.com/watch?v=q2Axn0…

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This is by far the weirdest junk mail I've received since "Open now and free a bear!"

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I have knacked my back. So this is what being old is like. I don't like it.

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In reply to @alisonkiddle

@ajk_44 I wish I'd known the first thing about calculus. I did *not* do well on STEP 2.

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I'm banned from making any more card games after my last one, Proposition, led to some confusion

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In reply to @Electrokittie

@Electrokittie you should have a red curtain with a sign reading "PRIORITIES", and when you pull it back there's a picture of poor people

0 favourites 1 retweet

In reply to @Gelada

@Gelada I was recently editing some notes handed out to our foundation students which said "there is no function y=f(x) such that y^2=x^2"

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In reply to @miclugo

@madcaptenor you could rename it NOHOMO?

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts @scienceatlife lovely rotational symmetry in the registration number.

0 favourites 1 retweet

How do I convince my researcher colleagues to release their code, no matter how badly written they think it is, for others to see?

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Pedantry is alive and well in the school of maths and stats.

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Although this sign has so far avoided the wrath of the vigilantes.

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Two more posts and I'll have locked out the @aperiodical front page. #aperiodicalfilibuster

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"Thumb up your followers". Sorry, I didn't realise Google+ was that kind of website, that's not what I'm into. I'll get my coat.

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In reply to @My_Metro

@My_Metro @NewcastleCC there's been broken glass on the steps outside St James metro station for quite a few weeks now.

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Tynemouth/Newcastle: tragedyseries.tumblr.com/post/539640860…

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In reply to @brittneybean

@brittneybean "Bean, Brittney" sounds like an imperative

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s you should send that to @haggismaths for whatsonmyblackboard.wordpress.com

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Today's discovery: @TweetsofCushing's trip wouldn't be much shorter if he flew to my house instead of running

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@MrHansSchmidt @MathsJam it's this: amazon.com/Mathematics-sc… but my copy has a different cover

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In reply to @vickytnz

@vickytnz have you tried saynoto0870.com ?

0 favourites 0 retweets

In reply to @ebuie

@ebuie really? I have a friend who got as far as taking her theory test with no apparent problems

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In reply to @ebuie

@ebuie I think @DVLAgovuk thinks you want to exchange your licence. You want to take a test from scratch.

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In reply to @ebuie

@ebuie yes, US student, been here two years

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In reply to @ebuie

@ebuie she failed it. I think she's going to try again though.

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Trufax. RT @TweetsofCushing: Making @christianp mad accidently is very easy

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In reply to @MouldS

@MouldS @jamesgrime I find youtube commenters to be more stupid than crazy.

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In reply to @peterrowlett

@peterrowlett @d_spiegel and instead confuse him with a German newspaper!

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In reply to @EngageNCL

@EngageNe I also note the free ice cream stalls all appear to be in for repair today. First time in my lifetime. #NCLVisitDayFacts

1 favourite 1 retweet

In reply to @EngageNCL

@EngageNe and did we move a few degrees north over night? Newcastle used to be in the tropics. #NCLVisitDayFacts

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In reply to @NewcastleCC

@NewcastleCC thanks!

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Actually, 28/6 would be a perfect day for my Official Birthday, since my real one is so close to Christmas. If only I'd thought ahead!

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My birthday is almost exactly half a year away from today. Can we celebrate Halfway Day?

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I love knights, me. MT @erik_kwakkel: Lovely image from a 16th-c chronicle, when jousting had become rare.

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In reply to @BParkEd

@BParkEd @icecolbeveridge I'm happy having a perfect day every year (or three, if you count 6/1 and 1/6)

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In reply to @a_cruickshank

@a_cruickshank @icecolbeveridge the Finkbeiner test? doublexscience.org/the-finkbeiner… "Would you ask a man that?" is a Hillary Clinton quote.

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In reply to @icecolbeveridge

@icecolbeveridge @C_J_Smith always there with a pun, Colin.

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In reply to @peterrowlett

@peterrowlett congratulations!

0 favourites 0 retweets

In reply to @StudentsNCL

@StudentsNCL if you're walking around campus holding big signs with the wifi password on, why have a password at all?

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In reply to @lyd_w

@lyd_w ooh, I wasn't aware of its existence. Do they do takeaway?

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In reply to @lyd_w

@lyd_w I will do a reccy!

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In reply to @qikipedia

@qikipedia and 123456789 is the largest number whose digits are in strict ascending order in base 10 oeis.org/A023811

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Is it a massive coincidence that today's Theorem of the Day is about Khinchin's constant? theoremoftheday.org/NumberTheory/K…

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and the winner of this week's round of the Integest Sequence etc etc was Khinchin's constant aperiodical.com/2013/06/intege…

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I think the time it takes to bake a potato is the unit geological ages are measured in.

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In reply to @stecks

@stecks YES. One of the Maths-Aid tutors uses it and it has made me capable of murder

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Name any element of this video - I love it! youtube.com/watch?v=kYHGO4…

0 favourites 1 retweet

In reply to @Tilman

@Tilman will they be shipped from Europe? I'm still smarting from the shipping cost from your prints sale

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At the BBC pitching my gritty new crime procedural. Food inspector Jack Cole plays it by the book... the cookery book. Cole's Law, 9pm, BBC2

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York is too narrow for me, Le Grand Muzzy! I'm freaking out a bit

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I had no idea @TweetsofCushing was so into trains! vine.co/v/hab6zbEgtDi

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It's good to take the bairn out for the day vine.co/v/habX6YwWOML

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The token to get me out of the museum car park is a little bit witty

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In reply to @Tilman

@Tilman oh good. Shipping for the prints was high, but I also had to pay ~£10 to get them out of UK customs

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Frantically saving all the stuff I had starred in Google Reader. I thought I had more time!

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579 unread items in google reader. One day. Let's do this.

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In reply to @aperfect

@aperfect yeah I've done takeout, but I need to save images that only Google reader still has cached

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In reply to @aperfect

@aperfect I've just been through and saved to my pc

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"Exponentiating the restricted nullcone" sounds a lot like "immanentising the eschaton". arxiv.org/abs/1306.5348

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July

In reply to @MathMunch

@MathMunch thanks for sharing it! I saw your post and meant to add a comment, which I will do now...

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In reply to @MathMunch

@MathMunch ... actually, never mind. I got my facts wrong!

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In reply to @peterrowlett

@peterrowlett hooray!

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In reply to @ant590

@ant590 in what way?

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In reply to @ant590

@ant590 I think they switched over to their own system a week or two ago, so they're just using google for credentials now.

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In reply to @jjaron

@jjaron the warning does say it won't be available *after* July 1st. Maybe it'll switch off tonight.

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In reply to @aperfect

@aperfect what are you cooking?

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In reply to @cambUP_books

@cambUP_books the British site doesn't seem to work at all: cambridge.org/404_error.asp?…. Am I doing something wrong?

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Now that's an eye-catching title! Quantum Computing since Democritus: cambridge.org/gb/knowledge/i…

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In reply to @cambUP_books

@cambUP_books that's what I did. Tried again in incognito mode too

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The mural of Gazza holding a bottle of broon at monument metro amuses me every day

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I love you, Chrome Developer Tools source code pretty print.

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In the new Hangouts android app, how do you tell if someone's online?

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Follow his good advice. RT @jgrahamc: Write good commit messages: blog.jgc.org/2013/07/write-…

0 favourites 1 retweet

In reply to @ebuie

@ebuie bizarre abbreviation for "location" or "locomotive"?

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I bet the Greeks had a word for the satisfaction felt going home when you know you've already got a dinner ready in the fridge.

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Difficult line to walk: I need to ensure enough people use my chosen GReader replacement that it stays open, but not so many it falls over

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I really like the art that's in tynemouth @My_Metro station bridge at the moment

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YESSSSS! rockpapershotgun.com/2013/07/03/the… I have waited many moons for this

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YOOOOOORK ON THE FOURTH OF JULY. #awayday

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Have I ever mentioned how much I #hateIE?

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Only took four goes but I finally got that tweet out properly.

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In reply to @Dr_Lucie

@Dr_Lucie @stecks to one sig fig, which is enough for anyone, you have

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I can finally rest easy, @Rokker816 has told me an interesting fact about 1246: the digits are the smallest integers with 1,2,3,4 divisors!

0 favourites 1 retweet

In reply to @haggismaths

@haggismaths do you want like, a grid of photos with names underneath?

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w the only local maths fact I know is that William Shanks, who had the record for calculating pi for years, was from Houghton le Spring

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In reply to @lyd_w

@lyd_w it took til the invention of mechanical calculators 70 years later to find he'd got the last 180 digits wrong! www-groups.dcs.st-and.ac.uk/~history/Biogr…

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In reply to @lyd_w

@lyd_w the record is the most digits. It's currently at 10 trillion and 50: en.wikipedia.org/wiki/Chronolog…

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In reply to @HilariousCow

@HilariousCow on the other hand, Jurassic Park: Trespasser

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In reply to @HilariousCow

@HilariousCow yes, I was being a bit flippant. I totally agree with you!

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Exciting new product from CP Industries: walker for ageing physicists with wraparound parallax star animation: Reference Frame™

0 favourites 0 retweets

In reply to @ebuie

@ebuie I did but it reached escape velocity

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In reply to @ebuie

@ebuie probably the least unusual of their beliefs

0 favourites 0 retweets

In reply to @ebuie

@ebuie I think that fad sort of ended, didn't it?

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Hoplite is a very fun game. play.google.com/store/apps/det…

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Basically a tautology this summer.

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It turns out that using Heworth Park and Ride is considerably more expensive than just driving into the centre of town. Thanks Obama.

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w Weirdly, there is radio 4 but not radio 3. Not sure how that works.

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Reading @peterrowlett's thesis chapter. Unputdownable. A work for the ages. A masterpiece. (Disclaimer: it plugs @NclNumbas)

0 favourites 1 retweet

In reply to @johndavidread

@johndavidread oh yeah, my chapter is the one that details the three quests @peterrowlett completed to earn the favours of the gods

0 favourites 1 retweet

Google Music has cut all the swear words out of my uploaded songs. Everyone knows I never use them myself, but I do enjoy hearing them. #bum

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean I was just asking @aperfect before if he'd seen anyone lazy enough to get street food brought to them

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it's too hot.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz can I prod you to reply to my email about the e-assessment site?

0 favourites 0 retweets

Debugging IE. "Don't tell 'em where the error is, Pike!"

0 favourites 1 retweet

Because it takes a 60-second round trip to put a new package on Moodle, I'm having to do the minimum-weighings puzzle with lines of code

0 favourites 0 retweets

Still at work, still trying to find the source of this IE bug. #hateIE #hateIE #hateIE

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths it's a bug one of my users has caught!

0 favourites 0 retweets

IE beaten for another day! All I had to do was never ask it if my input fields have focus. github.com/numbas/Numbas/… #hateIE

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Just pushed a button to make a door open. #doorsquare

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This is a nice simple way of quickly rendering Tikz pictures (or any LaTeX) to a PNG: quicklatex.com

0 favourites 0 retweets

In reply to @ColinTGraham

@ColinTGraham @ColinTheMathmo if you have something you can say in a skype video, I know a certain website that would be happy to host it...

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz I also used Mendeley. But Zotero has got a lot better since I started using mendeley, and it's not owned by Elsevier

0 favourites 1 retweet

In reply to @vickytnz

@vickytnz ummm, there's a standalone application now zotero.org/download/

0 favourites 0 retweets

In reply to @tim_hunt

@tim_hunt that's not many question attempts. We have fewer students at Newcastle but ~18000 *test* attempts. How many exercises did you set?

0 favourites 0 retweets

Apparently 25 degrees counts as "extreme heat" for the metro.

0 favourites 0 retweets

In reply to @timchartier

@timchartier to the tetration station!

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w @NCLScienceComic somebody's already said lucozade, haven't they?

0 favourites 0 retweets

But fees won't put anyone off applying to top unis. "@ucas_online: How much are fees at your chosen uni? Find out using our new search tool"

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Woke up with a strong desire to watch Lucky Number Slevin

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There's nothing not to like about photos of transgender men in heroic poses in front of happy Bob Ross landscapes: slate.com/blogs/behold/2…

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch ten-four, papa bear

0 favourites 0 retweets

In reply to @plusmathsorg

@plusmathsorg @QuercusBooks why only integers on the cover?

0 favourites 0 retweets

In reply to @plusmathsorg

@plusmathsorg @QuercusBooks phew! I look forward to reading the finished book.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @C_J_Smith also re citations: (Name, Year) isn't a great label, is it? I go with (Name, X) where X is the position in the bib

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In reply to @C_J_Smith

@C_J_Smith @peterrowlett hmm. Our guide says "Harvard, or as directed by your School", which for us would mean carte blanche, I reckon

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @C_J_Smith so we all agree!

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz are you enjoying the woeful architectural designs?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge WOW. That is a terrible article!

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These two sequences are eerily close: oeis.org/A076605 and oeis.org/A139421

0 favourites 0 retweets

Does project euclid only archive journals which don't know the differences between accented letters? ö vs ø here: projecteuclid.org/DPubS?service=…

0 favourites 0 retweets

A very good set of numbers mazes to stretch your thinking bits: joedev.net/JSIL/Numbers/ (via @mathpuzzle)

0 favourites 2 retweets

There is an area of my mouse mat that my mouse has decided it will no longer work on. I can't see anything different about it. Total mystery

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz oh man, I should be at the beach! That's a great idea!

0 favourites 0 retweets

In reply to @mathpunk

@mathpunk can I email you about something frivolous yet mathematical I'm doing for aperiodical.com?

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz the owner is a friend of a friend, I could ask for some photos

0 favourites 0 retweets

In reply to @AdamThirtle

@AdamThirtle do you have any photos of Pink Lane coffee that a friend could use for a review?

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz Lui's has both, I think.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @C_J_Smith @scarymum argg, I need to book my place at some point

0 favourites 0 retweets

I am going to eat a lot of ice cream and then sit on the beach.

1 favourite 0 retweets

In reply to @samholloway

@samholloway that's an extremely low bar to hop over

0 favourites 0 retweets

In reply to @AdamThirtle

@AdamThirtle super! @vickytnz was the one asking

0 favourites 0 retweets

youtube.com/watch?v=sr_MkO…

0 favourites 0 retweets

Someone made the regex crossword into a proper thing! regexcrossword.com

3 favourites 1 retweet

Getting in some quality time on the beach before the hordes arrive

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That's some straight up beautiful scenery right there

1 favourite 0 retweets

Such a lovely Mickey Mouse short! youtube.com/watch?v=WAZRc3…

0 favourites 0 retweets

It's so hot today that I'm wearing The Hat.

0 favourites 0 retweets

Didn't quite manage a full set of repdigits, but they're all palindromes, at least.

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston that's a moderately clever idea, but all I really want is a Falkplan of the UK with the cut pages.

0 favourites 0 retweets

Can I blame the music festival for the TV reception and wifi problems I've been having all day?

0 favourites 0 retweets

I don't understand radio 4's Sunday schedule. I just heard a repeat of the Alastair Cook documentary, and now Something Understood is on.

0 favourites 0 retweets

Oh! Everything's on later because of summer time! Never mind. Stand down the nuclear deterrent.

0 favourites 0 retweets

In reply to @MattPDickinson

@MattPDickinson what's the IP of the new server?

0 favourites 0 retweets

*that* is how you play bananagrams.

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths singular of delts, the muscles.

0 favourites 0 retweets

@Rokker816 GO CODE ALPHA. The ball is in play. I repeat: the ball is in play.

0 favourites 0 retweets

In reply to @ThomasEWoolley

@ThomasEWoolley you've got "Andrew Jeffries" instead of "Andrew Jeffrey"

0 favourites 0 retweets

11:23! Tell a fib!

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson I hope you do get to do more. I really liked it.

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson how much of the cost was time spent doing that frozen wandering shot at the start?

0 favourites 0 retweets

@Rokker816 witty reply

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In reply to @wilderlab

@wilderlab @Derektionary I've got another one: 11²=121 and 11²=121.

2 favourites 1 retweet

In reply to @ashleyhwright

@ashleyhwright that's good news! But it's LaTeX, not LATEK

0 favourites 0 retweets

In reply to @decaf_unicorn

@fumbleweeds bah! It's that hot here in dreary England.

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the character 'e' is pretty easy to write as a function in polar co-ordinates: wolframalpha.com/input/?i=polar…

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"Latarsha Grazioplene" is the best spambot name I've ever seen

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The existential moment of self-doubt when you see someone else is editing the same google doc, and it's you.

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Wow, I haven't been to omniglot.com in ages. What happened to me? This isn't how life was supposed to be.

1 favourite 0 retweets

I math, you math, he/she maths, we math, they math.

1 favourite 1 retweet

In reply to @TimHarford

@TimHarford the BBC link said "Are *real* women's bodies still beautiful?", as if previous studies have shown mannequins recover well.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz trufax

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How can MS Word be so bad at typography? It's a pretty major part of what it does.

0 favourites 0 retweets

In reply to @ebuie

@ebuie depends on whether you share it or not

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In reply to @loch_b

@loch_b @MathsJam that's what the map is for! maps.google.co.uk/maps/ms?msid=2… Nearest is either Nottingham or Leicester. Yes, next Tuesday, 23rd.

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Something about the way this is recorded reminds me of old Popeye cartoons: youtube.com/watch?v=osYZPx… (also, how funny it is)

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In reply to @MoMath1

@MoMath1 only 1,000?!

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Do I want to buy some "flagstone" coloured shorts? It's quite a step down from "orange sun", but it's all that Gap have left.

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wow! Someone got to the site by using "Norton Safe Search, powered by Ask Jeeves". World's biggest noob?

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In reply to @robinhouston

@robinhouston very nice!

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In reply to @standupmaths

@standupmaths it just says 1 discrete and 2 pure studentships. I think the stats section is boilerplate

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In reply to @mathpunk

@mathpunk before it went public, I asked a few people to pick winners for the Integest Sequence 2013 final - aperiodical.com/2013/07/intege….

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In reply to @mathpunk

@mathpunk ... the public vote thing is open now, but if you send me a pick I'd certainly include it in the grand finale post

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In reply to @mathpunk

@mathpunk we're publishing the final post on the 29th, so until then

1 favourite 0 retweets

In reply to @mathpunk

@mathpunk actually, having re-read your tweet: we're only looking at those six sequences mentioned at the end of bracket 4 for the final...

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In reply to @mathpunk

@mathpunk ... so can you pick a winner from them, and give a reason? If you have another sequence in mind, you could review it later on!

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In reply to @vickytnz

@vickytnz ah! I've been watching your Cardiff Quest tweets and assumed you had reasons for not flying. I should've said something.

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oh joy this package is being delivered by Yodel. Anyone want to place a bet on how long before I get my hands on it?

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In reply to @vickytnz

@vickytnz there's a cool observation tower with a camera obscura on the hill overlooking that bridge

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In reply to @michaeljgrove

@michaeljgrove yes: screencast-o-matic.com/u/h/start-reco…

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In reply to @michaeljgrove

@michaeljgrove good, isn't it? I can highly recommend screencast-o-matic, by the way.

0 favourites 0 retweets

In reply to @libraryncl

@nulibrs @NUinternational that link doesn't work

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In reply to @icecolbeveridge

@icecolbeveridge bonus credit: find something named after the wrong Bernoulli

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett so close to the finish line! Is this you: youtube.com/watch?v=3iWI72…?

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In reply to @IanMulvany

@IanMulvany NTFS limits you to 255 characters for a file name, so that.

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In reply to @IanMulvany

@IanMulvany though, actually, the max total path length in windows is 260. stackoverflow.com/questions/2657… So considerably less! Maybe a tweetsworth?

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Taking 'waiting for the drop' to an extreme rte.ie/news/2013/0717… (via @TimHarford)

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In reply to @Gelada

@Gelada superb! A+++++ would shambolically commission art from again.

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In reply to @Electrokittie

@Electrokittie @Bishnavitch that is the most adorable thing I've ever seen

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Watch out ladies, these shorts don't even get close to my knees! I'm a moral reprobate

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In reply to @vickytnz

@vickytnz sample bias?

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Exciting! RT @Gelada: .@christianp Quick preview of the artworks I will be putting in the post tomorrow!

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Is there a service that will hire out a geologist for the day to explain rocks while I walk in the countryside?

0 favourites 2 retweets

It's 14:14 ~= sqrt(2). Act irrational!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge dwell on the poor hand Life has dealt us

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New cabinet magazine!!

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I've had the most middle class product idea ever: a wallet to keep all the annual passes for the stately homes and museums you've visited in

0 favourites 2 retweets

Wahey! Gowers has added the @aperiodical to his blogroll. #bigtime #stalkinggowers

0 favourites 1 retweet

Dilemma: buy just enough food for lunch at the co-op, or do a big shop?

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In reply to @madeupstats

@madeupstats surely the most accurate data on injuries sustained by Tory MPs comes from BUPA.

0 favourites 1 retweet

the BBC Good Food recipes site has a special set of adverts which only show up in the print stylesheet, and use a third of the page width.

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And for that reason, I'm out. (and pasting the recipe into Word)

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In other news, my printer is a little bit a lot broken

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I think "7 slices processed American cheese" is an instruction you can disobey, citing the Geneva conventions. allrecipes.com/recipe/nacho-c…

0 favourites 0 retweets

In reply to @raj7desai

@smartgags @the_playce @raj7desai is that the princess in the castle puzzle? How far did you get?

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall @Andrew_Taylor @aPaulTaylor aw, I feel left out

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall @Andrew_Taylor @aPaulTaylor I just tried! It says no updates :(

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In reply to @vickytnz

@vickytnz and I'd never realised how little the Ring of Fire looks like a ring!

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I just found out there was a governor of Chile called Ambrose O'Higgins, and there's a national park named after his son, Bernardo O'Higgins

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Sitting in a car park waiting to meet some friends. Can't even listen to the radio because it's the Archers omnibus

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They reduced this jam so much they even rounded down the brand name

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In reply to @helenarney

@helenarney I asked Matt and Steve but don't have your email: do you have any thoughts about these integer sequences? aperiodical.com/2013/07/intege…

0 favourites 0 retweets

In reply to @divbyzero

@divbyzero you seem to have been very conscious of your fingers and toes, but not of how many you have

0 favourites 0 retweets

Searching for "birmingham university" on national rail enquiries doesn't produce "university (birmingham)". Because trains don't commute?

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Almost a pie. RT @TweetsofCushing: Happy Pi approximation day! To celebrate i'm having a pasty for lunch

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Newcastle @MathsJam is TOMORROW! 7pm, Charles Grey pub, at Monument. Take your mind off the mad humidity with a drink and some maths.

0 favourites 3 retweets

There's a good article in the latest issue of Cabinet magazine about the intersection of beer and maths, but it isn't online :( #mathsjam

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In reply to @ben_nuttall

@ben_nuttall and demands a refund?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett your uni uses Turnitin on PhD theses?!

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when you write a git command name in capitals, you get this fun error!

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In reply to @poveryant

@poveryant yep! Very exciting!

0 favourites 0 retweets

In reply to @timchartier

@timchartier is the controller running on ternary arithmetic?

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In reply to @standupmaths

@standupmaths I feel that varpi would be more appropriate today: ϖ ϖ ϖ ϖ (ref. p8 of web.archive.org/web/2012022913…)

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In reply to @evelynjlamb

@evelynjlamb well put! "Looks like math but not constrained by mathematical meaning" is what I look for in Arty Maths aperiodical.com/category/colum…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett eugh.. I have so many posts I need to do! Probably not.

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At the coast, at what point of humidity is it fair to say we've been flooded?

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner @peterrowlett ooh! Maybe you could report on it for us? Pretty please?

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner ok, no problem. It was worth asking!

0 favourites 0 retweets

In reply to @DrTonyPadilla

@DrTonyPadilla @numberphile I enjoyed the sequences video greatly. Thanks!

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz Yes, well done Coke. (Names may or may not have been cynically chosen to suit Coke's brand position)

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In reply to @vickytnz

@vickytnz I did not! Are you saying the names were more homogeneous in NZ?

0 favourites 0 retweets

thinking-so-long-about-how-you're-going-to-start-a-sentence-that-you-turn-on-sticky-keys-moment. #newgermannouns

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett spam bots have been copying tweets for a while. Twitter can't check for duplicates, so it's a good way of beating the filters

0 favourites 0 retweets

In reply to @DrTonyPadilla

@DrTonyPadilla @numberphile we think it's Liverpool champion's league wins

0 favourites 0 retweets

Whaaaaaaaaaaaaaat?! A new series of The Mysterious Cities of Gold! youtube.com/watch?v=Ly1hQr…

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz it happened right on top of me, so I most definitely did not sleep through it. #quitetired

0 favourites 0 retweets

"I know it when I see it" is the hardest problem in computer science, and that's why porn blockers don't work.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz crocodile eats the bigger number! Draw some teeth in the middle! < < < <

0 favourites 0 retweets

you can select a bit of code in chrome's sources view and press ctrl+shift+e to evaluate it in the console! So useful!

0 favourites 0 retweets

In reply to @vickytnz

@nataliejpeters @jonathanvswan @vickytnz when you've got as many as we do, one dominion begins to look like another.

0 favourites 0 retweets

Yep, that's SQL being echoed to the client.

0 favourites 0 retweets

In reply to @JohnDCook

@JohnDCook hey, compared to previous progress, it's been slow. And I don't think it's going to pick up speed again.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz no! Save yourself!

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz I think if you'd arrived in a town with a better team it might be a different story. Supporting NUFC is hard enough for the locals

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In reply to @vickytnz

@vickytnz yes: typically your home town, and anyone who plays Man U.

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett @aperiodical it is now

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith @mathsarcade hooray! I'm dying to get going with ours

0 favourites 0 retweets

MATHS FACT: mathematicians write QED, short for "Quinoa Eases Digestion", at the end of each proof to remind themselves to eat healthily.

1 favourite 0 retweets

In reply to @vickytnz

@vickytnz the exception to this rule, of course, is midday misery soap "Doctors".

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@Nathan1123 I assume this is how microsoft write their software, so maybe massive profit?

0 favourites 0 retweets

In reply to @mike_geogebra

@mike_geogebra is there a way of setting allowRescaling in html5 embeds from geogebratube?

0 favourites 0 retweets

It is a truth universally acknowledged, that a man not in possession of a good fortune must be in want of a tenner with Jane Austen on it.

0 favourites 1 retweet

In reply to @Jisc

@Jisc no it isn't.

0 favourites 0 retweets

Well done, wifi user hogging half the spectrum with a massive transmitter. You are the worst person.

1 favourite 0 retweets

In reply to @DanielColquitt

@DanielColquitt I don't have 5ghz hardware

0 favourites 0 retweets

Thanks for breaking middle-click on links, BBC News. I need the firm hand of the Beeb to correct my new-tab-opening ways.

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime a Sony blog has covered your star trek articles, but misattributed them to @peterrowlett! trenditup.com/trenditup/ocio…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @jamesgrime oh, I forgot to say I posted one too

0 favourites 0 retweets

I propose a new measure on hotel rooms: the minimum total distance you need to move the furniture before you can plug your phone in.

1 favourite 2 retweets

In other news: my laptop connected to eduroam on the first attempt! Unprecedented!

0 favourites 0 retweets

Thought this disability-adapted room was pretty cool until I saw how low the shower head is. #justsittin' #andwishin' #andhopin' #andwashin'

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In reply to @brittneybean

@brittneybean look closely enough and you can see Darth Maul in the bottom half of his face (you might need to be colourblind)

0 favourites 0 retweets

my DSL connection is now too slow even to stream google music, so I'm running it off my phone's 3g connection. Hooray!

0 favourites 0 retweets

In reply to @missradders

@missradders @dmh10 a cabal of groovy people. Don't tweet from it for anything that isn't directly MathsJam related.

0 favourites 0 retweets

Just a picture of JM Barrie and George Bernard Shaw dressed as cowboys, no biggie. chesterton.org/2013/04/cowboy…

0 favourites 1 retweet

Plough a thorough furrow: three different words, two different suffixes with, depending on accent, two or three different pronunciations.

0 favourites 0 retweets

In reply to @stecks

@stecks skype!

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @stecks ah! I knew there was a missing bit I meant to mention!

0 favourites 0 retweets

In reply to @stecks

@stecks I didn't because I didn't know where the sentence was going. Should I make something up?

0 favourites 0 retweets

The bird noises they play on BBC HD are way better than the local news they replace

0 favourites 0 retweets

Just a few more votes for the Integest Sequence final would get the total over an interesting number: docs.google.com/forms/d/1VRdUf…

0 favourites 0 retweets

Wahey! Interesting number reached. Thanks!

0 favourites 0 retweets

I picked the wrong day to trust the weather forecast! There's a storm happening outside and I need to go out for lunch without a coat.

0 favourites 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy it's hard to see what shape that is from one angle. Is it a snowflake mixed with a tetrahedron? Lots of pointy-out bits.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz @ebuie @DollyDiffers Uno's is alright, or El Torero. If it's for next week, look at Restaurant Week: getintonewcastle.co.uk/restaurant-wee…

0 favourites 0 retweets

New PBF!!!! pbfcomics.com/259/

0 favourites 2 retweets

"Future your conectivity with USB 2.0 and USB 3.0". This sentence a verb.

1 favourite 0 retweets

In reply to @CardColm

@CardColm do you expect they'll reappear, or are they lost? @maanow @profkeithdevlin

0 favourites 0 retweets

In reply to @CardColm

@CardColm oh good!

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime @peterrowlett that Spanish blog has corrected the Maths of Star Trek attribution: trenditup.com/trenditup/ocio…

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith quite droll, but the only graffiti I'll accept on a motorway bridge is GOURANGA

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes, I think so

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime @ColinTheMathmo I was about to say, I thought you were a group theorist! Can we agree analysts don't do outreach as much?

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I suppose you can mention someone without using their name

0 favourites 0 retweets

bbc.co.uk/news/uk-politi… The mindset that comes up with this... just... wow.

0 favourites 0 retweets

I've come up with an integer sequence that I refuse to believe isn't already in the OEIS. What am I missing? It's driving me mad.

0 favourites 0 retweets

In reply to @alnelson_writes

@MuseGarden numbers which are palindromes when written as sums of non-adjacent fibonacci numbers.

0 favourites 0 retweets

In reply to @alnelson_writes

@MuseGarden gist.github.com/christianp/607…

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WHAT MAGIC IS THIS oeis.org/A073666

0 favourites 0 retweets

ah! I had the wrong representation. Defeated again by Almighty Oeis. oeis.org/A094202

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz @jsnortheast I think I've booked for that! Assuming I don't forget, I will be there.

0 favourites 0 retweets

Oeis (n): 'Standing on the shoulders of giants'. E.g., "with a bit of intuition and some oeis, I noticed my problem was equivalent to X"

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In reply to @icecolbeveridge

@icecolbeveridge oh crumbs, that's two episodes you've done since our last All Squared. We had one lined up but it fell through!

0 favourites 0 retweets

In reply to @JPickford

@JPickford they moved it to get a bigger audience

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Presented without comment. asciiartfarts.com/20110103.html

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Has Strictly Come Dancing made the tensegrity dress acceptable for daily wear?

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I mean the ones that seem to be supported entirely by the tension in the clasp holding the cups together.

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz not ruling anything out at this stage

0 favourites 0 retweets

In reply to @Gelada

@Gelada can you check your email as soon as possible please?

0 favourites 0 retweets

Opinion seems to be firmly anti tensegrity dresses. I asked because I saw three people wearing them on the way into work. Stay classy, NCL!

0 favourites 0 retweets

In reply to @numberphile

@numberphile @mathemaniac that is approaching @jamesgrime levels of freeze-frame gurning excellence. Must be good maths!

0 favourites 0 retweets

In reply to @Caro_lann

@Caro_lann no, I think the ones I saw had too little material to be sun dresses. I am not a dress expert, though.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston I've been doing it for a couple of years. You will regret it only if you need to use a module that hasn't been ported yet.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston there aren't *too* many incompatibilities. The main one is unicode strings, which you can get round with some preamble

0 favourites 0 retweets

In reply to @ebuie

@ebuie yeah, that's not going to stop us.

0 favourites 0 retweets

In reply to @ebuie

@ebuie If I mean the poly, I'll say 'the poly'

0 favourites 0 retweets

In reply to @ebuie

@ebuie heheheh

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I think so too. The madness is over for now.

0 favourites 0 retweets

What's this! Could it be some art from @Gelada? Exciting!

0 favourites 1 retweet

In reply to @JanvierUK

@JanvierUK wow, is that what it took? You didn't sound too keen when you were here!

0 favourites 0 retweets

Guys, I think I'm ready to give up and just call it math.

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths they're gliding straight into my heart

0 favourites 0 retweets

The university's cheapest campus parking tariff is "£1 for a minimum stay of 2 hours". What if I only want to stay half an hour?

0 favourites 0 retweets

August

Sitting and listening to some rather pleasant jazz music at Tynemouth metro while we wait for our train.

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @MAAthFest @aperiodical !!! Please keep us updated on this IMPORTANT topic!

0 favourites 0 retweets

It's finally here! The prestigious Integest Sequence trophy. Makes you proud to be a mathmo. aperiodical.com/2013/07/intege…

2 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge @MrBoffly @aperiodical that's the first rule of Bertrand Russell club. The first rule of Gödel club is 63574137854472380...

0 favourites 1 retweet

Baked a cake. #thingsihavedonewhilewaitingforwindows8staskmanagertostart

0 favourites 0 retweets

In reply to @numberphile

@numberphile could you add a link to the integest sequence finale on your video please? The trophy is FABULOUS aperiodical.com/2013/07/intege…

0 favourites 0 retweets

The first law of chillies is wash your hands before touching your jermongler. I broke the law and the law won.

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths elephants are unscientific. They've never been replicated in the lab.

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths prove me wrong, science girl!

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths it's all speculation at this point

0 favourites 0 retweets

That moment, when an automatic door is slow to open, when you try to remember if you've been bitten by a dracula recently

0 favourites 0 retweets

In reply to @MouldS

@MouldS I believe @jgrahamc can help you: geekatlas.com

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch I went with Adam and my mum to the one a few weeks ago. Distinctly unimpressed.

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In reply to @Bishnavitch

@Bishnavitch none. Risk?

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch we could

0 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly well done on the factorial-numbered post!

0 favourites 0 retweets

SOMEONE MADE THAT CAT GIF BETTER!!! b3ta.com/board/10987532

0 favourites 0 retweets

Indirect Observation of Insects through Bites on Skin, C Perfect 2013. Abstract: aaaaaaaaaaaaaaaaaaaaaaa they're everywhere aaaaaaaaaaaaaaa

1 favourite 0 retweets

In reply to @vickytnz

@vickytnz well, if you cut your foot then stand on some spit or some blood, that could do it

0 favourites 0 retweets

Lazied out of walking back home from Cullercoats, wandered into the station exactly as the train arrived. Feel like I achieved something.

0 favourites 0 retweets

In reply to @MattPDickinson

@MattPDickinson haha, excellent!

0 favourites 0 retweets

In reply to @vickytnz

@vickytnz looks good! Are you going to JSNE tomorrow?

0 favourites 0 retweets

Where is everybody? Do the Tynemouth Cool Crew get the earlier train on Mondays?

0 favourites 0 retweets

In reply to @aperfect

@aperfect I need to play Screamer Rally. Guess which song just came on

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths I can't see what's wrong with that. The percentages add up, the pieces of the pie are labelled the right way. What am I missing?

0 favourites 0 retweets

In reply to @pelagikat

@hornmaths ah haha!

0 favourites 0 retweets

This is a pretty good advert youtube.com/watch?v=6KeG_i…

0 favourites 0 retweets

In reply to @stecks

@stecks I MISSED IT BECAUSE I WAS DOING GEOMETRY AAAAAA

0 favourites 0 retweets

I just want to draw a fruity polyhedron with my computer! Why is it so hard? Oh yes: my work PC doesn't have accelerated graphics

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @tom_kitching or you could temporarily use a 12-hour clock and catch 11:23PM tonight. I also missed it this morning :(

0 favourites 0 retweets

I'm not going to @jsnortheast because they haven't said what's actually going to happen there. (And I have a stomach bug so can't eat pizza)

0 favourites 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth @standupmaths @tom_kitching very good!

0 favourites 0 retweets

The correct response to LaTeX setting inline fractions very small isn't to use \dfrac everywhere. #students!!!

0 favourites 0 retweets

Aw man! Who walked a mile in my shoes?

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts but there might have been two differently-qualified Elin Robertses at your address!

0 favourites 0 retweets

Jessica Enneahedron-Hill. #mathletes

0 favourites 0 retweets

oh wow. King's School had £5m of debts, and Gove paid them off in return for it becoming an academy. Austerity! newsguardian.co.uk/news/local/cou…

0 favourites 9 retweets

In reply to @bitcraftlab

@bitcraftlab clever! What does it look like without that extra line on the bottom edge?

0 favourites 0 retweets

In reply to @stecks

@bmagnanti @stecks huh, M&S is clopen. Who'd've guessed?

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In reply to @standupmaths

@standupmaths I think your Excel thing is nilpotent. I've almost completely faded away after 4 iterations:

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In reply to @stecks

@stecks @standupmaths no, I think it's the black text inside the cells

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I'll never be as massive a coward as this guy: animalsbeingdicks.com/post/574267844…

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In reply to @scarymum

@scarymum you're in Newcastle! Are you visiting the maths department?

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In reply to @scarymum

@scarymum we could! Knock on Bill's door whenever - room 2.33

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?!?!?!

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In reply to @sxpmaths

.@sxpmaths that's why I like to call the integers "the set of solutions to homework problems".

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In reply to @Gelada

@Gelada it was my assigned reading for my Cambridge interview. I did not enjoy it either.

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In reply to @JanvierUK

@JanvierUK fish

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In reply to @scarymum

@scarymum my record is 9 minutes between my office mate saying "shouldn't you be in London?" and sitting on the train.

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Olympics souvenir bananagrams is 25% cheaper than normal bananagrams, and has five more tiles. Just saying.

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After winning Wimbledon, Andy Murray has graduated from human competition onto cereals bbc.co.uk/sport/0/tennis…

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Typing 'every' and then any non-word character in @TweetDeck on chrome makes it crash, every single time. (this tweet written on my phone)

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The sickness is in the system! It's a chrome bug, and 'exist' and 'expat' and 'ewert' (?) also trigger it, but not 'ender' or 'eddie'

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Trying not to pick thumbnail frames from these videos where it looks like the esteemed professor is waving coyly at the viewer

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Frames where it looks like the equations have given him a fright are fine, however.

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In reply to @vickytnz

@vickytnz what about the alcohol section of Fenwick's food hall? Cushing swears by it for his whiskey.

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In reply to @vickytnz

@vickytnz on that subject, Out of This World in Gosforth shopping centre stocked lots of world foods. Not sure if it's still there though!

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In reply to @vickytnz

@vickytnz it's decent, if you're able to ignore hateful middlingly-rich people

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I have died. I am dead. This was both the best and the last thing I saw in my whole life. sbnation.com/2013/7/23/4549…

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In reply to @tomwoolway

@tomwoolway @TweetDeck turns out it's a Chrome issue, for the particular version of Chrome uni's IT service provides.

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In reply to @numberphile

@numberphile I thought the archive at bigprimes.net/archive/prime/ might have it, but it stops about an order of magnitude too early.

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In reply to @numberphile

@numberphile they only have 1.4 billion primes though, so maybe 5,500,000,000th is an estimate from the x/ln(x) prime-counting function.

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In reply to @numberphile

@numberphile I dunno either! The primality test says it's a proven prime, at least bigprimes.net/primality_test/

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100123456789: the smallest prime number that contains the digits 0-9 in sequence.

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[citation needed]: bigprimes.net/faq/

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The house next door is becoming swaddled in scaffolding. Now seems like the perfect time to go to Wales. #holidayhooray!

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My car phone charger can't provide as much power as my phone uses when it's doing navigation. Driving into deepest Wales today will be fun!

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Phase 1 of @aperiodical performance review complete. @peterrowlett's Q2 figures slipping. The board recommended synergising his throughputs

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(or, to put it another way, thanks to @peterrowlett for putting me up for the night)

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In reply to @samholloway

@samholloway the narrator in the lindisfarne gospels exhibit says chester luh street as if it's French. Inexcusable!

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I'm at the very edge of Wales on a tiny farm and I've got HSDPA internet on my phone. I love the future!

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Is there a version of Jollyphonics for Welsh?

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The mullet is alive and well in Pembroke

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The bit in Gremlins 2 where the gremlins stop the film itself, then Hulk Hogan makes them restart it, is the greatest moment in all cinema

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In reply to @JanvierUK

@JanvierUK I have nothing but respect for you.

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In reply to @hulkum

@hulkum you can't have one: one prime would be even, and the other odd. 49 isn't prime, so no dice. Sorry!

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Both these crisps and this houmous taste terrible, and they wouldn't have been a good combination anyway. Poor show, CP. Poor show.

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Hiatus Koyote is very good music to accompany sitting in the sun and reading a book

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In reply to @peterrowlett

@peterrowlett @stecks @alisonatkin meanwhile, "Average Death at Height" is the title of my new book about deep vein thrombosis

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In reply to @vickytnz

@vickytnz I'd like to be present to hear you attempt it. I can't even imagine what it would sound like

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In reply to @vickytnz

@vickytnz I think you might be overthinking this passport photo

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In reply to @vickytnz

@vickytnz typically four at AS (first year) and), then concentrate on three for full A-level (second year). Clever children do four or more

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In reply to @vickytnz

@vickytnz the government requires five minimum. I did 10, eager beavers do more. If you read eg the torygraph, you'll get a wrong impression

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In reply to @vickytnz

@vickytnz well, we need a way to perpetuate the class system...

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In reply to @elinoroberts

@elinoroberts on what timescale will this bacon go off?

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In reply to @lostinrecursion

@lostinrecursion @aperiodical @MathMunch I'm very aware and approving, but on holiday. I'd hoped one of the other two would share it...

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In reply to @lostinrecursion

@lostinrecursion @aperiodical @MathMunch I'll do a post when I'm back at a computer

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In reply to @elinoroberts

@elinoroberts @standupmaths @jamesgrime ooh, can I join in?

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Just looked at my RSS reader for the first time since going on holiday. This may take some time.

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In reply to @Htbaa

@Htbaa bazqux.com

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Here's @TweetsofCushing's epsilon tattoo. Because he's an analyst, it's arbitrarily small.

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Got on the metro at monument. Rookie mistake. I've been out of the game too long.

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In reply to @vickytnz

@vickytnz you nailed the "I've just endured a long haul flight and I'm totally over it" look, so you'll have no trouble at passport control

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In reply to @vickytnz

@vickytnz there might be a couple of mathsjammers having dinner at the Charles Grey. (not me though)

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In reply to @ebuie

@ebuie @vickytnz you did, but I didn't send out the email until this morning because I've been away. Did you get it?

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In reply to @jamesgrime

@jamesgrime you'll be able to name at least one former Canadian PM, so you should be able to pass as a local

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In reply to @ebuie

@ebuie dm me your email address and I'll add you to the list. I thought @vickytnz had already given me it, but maybe not!

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In reply to @MathsJam

@MathsJam -> CHELT: is the idea that casual mathematicians will identify you easily but pro mathmos might have more trouble and need a hint?

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There were two new Achewood comics while I was away? I need to go to Wales more!

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That is an unreasonable number of Os

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In reply to @sxpmaths

@sxpmaths spelltower: spelltower.com

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In reply to @sxpmaths

@sxpmaths nooooo it is not

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In reply to @Boxfresh

@Boxfresh what happened to the large size Sparkos? I can only see a single pair of 13s on your shop.

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In reply to @CardColm

@CardColm @aperiodical yes, she supervised my final year project!

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In reply to @Boxfresh

@Boxfresh thanks!

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What the dirndl, phys.org? Why link directly to the PDF of an arxiv preprint and not the abstract page?

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In reply to @ColinTheMathmo

@ColinTheMathmo do you use chrome? I had a similar problem with words starting with E a while ago

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In reply to @ColinTheMathmo

@ColinTheMathmo oh well, must be a different bug.

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In reply to @peterrowlett

@peterrowlett nyeehh, I didn't - David Roberts did.

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In reply to @peterrowlett

@peterrowlett is that what I wrote? Fair enough, then

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Now that is annoying! Just one tile away from spelltower glory

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In reply to @ebuie

@ebuie @cperfetti !!! I know of a Christiano Perfecto in Nigeria, too.

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Fun maths with @TweetsofCushing staying over after pancake party. We're finding arithmetic progressions of squares!

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Beards are the best form of hair. youtube.com/watch?v=zEYCPc…

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In reply to @profkeithdevlin

@profkeithdevlin our new chinese PhD student, studying number theory, actually had to convince border force he can't build nukes

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In reply to @pelagikat

@hornmaths diffing sin(x*y^2) with respect to x: looks like sin(A*x), A constant, so diffs to A*cos(A*x) = y^2*cos(x*y^2), by chain rule.

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In reply to @pelagikat

@hornmaths here's an example video my summer student recorded: vimeo.com/71901447

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In reply to @pelagikat

@hornmaths yes, with product rule, all of cos(y) looks like a constant - when you change x, it doesn't change at all

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In reply to @pelagikat

@hornmaths can you post a pic of your working?

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In reply to @pelagikat

@hornmaths ok, you don't need the product rule there - it's like you're just differentiating A*cos(alpha).

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In reply to @pelagikat

@hornmaths i.e. you don't have the product of two things that change with x

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In reply to @christianp

@hornmaths (sorry, with alpha)

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In reply to @pelagikat

@hornmaths glad you got it sorted. Alternately, if you were using the product rule, d/dx of cos(y) is 0, not 1.

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In reply to @Gelada

@Gelada I've come back from holiday to find your art is still not on the walls! I'm going to chase the building manager

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Does every house party now have a "searching youtube for videos people have half-remembered" phase?

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Ridiculous. RT @jawsew: Now that it's confirmed that these are real promotional images for The Sims 4: godivagamers.com/home/2013/8/16…

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I've been in Scotland literally 30 seconds and I've already seen a 12 year old kid out the window smoking

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I'd love it if the national rail app could use GPS to work out which train I'm on.

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Buying a food truck for my new nighttime pancake venture, Crêpe-uscular Activity.

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In reply to @jd_p

@jd_p are you at #easc13? If you're here tonight, do you fancy having dinner together?

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Time for my annual extraordinarily tasty hot chocolate at Henry's in the Caird Hall. #easc13

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I'm a big fan of this couple having a fight outside my window at 2 in the morning.

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Hotel room review time. Furniture-moving metric: 0. Knees under bureau: also 0.

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These tiles only have half as many crossings as it first seems. #betrayedbybraids

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In reply to @jamesgrime

@jamesgrime conspicuous paucity of dots in the north east. Do I need to spread the good word?

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13:31 seems as good a time as any to leave the house

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The whole family is marvelling at how fake this Scottish note looks.

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Wake up sheeple! youtube.com/watch?v=QcE5aD…

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In reply to @vickytnz

@vickytnz I haven't dared watch Punch Drunk Love again since it was so good the first time

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Can all twelve thousand of this Spanish tourist family buy metro tickets before the train arrives? Ordenador dice... no.

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Therapy llamas! colorsmagazine.com/stories/magazi…

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Just thinking about the chilli I burnt last night is making my throat hurt. I'm sorry, chilli! You deserved better!

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The booksellers in general have worked out that selling £2 editions of classics doesn't make them much profit. To Amazon!

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In reply to @ColinTheMathmo

@ColinTheMathmo @Yahoo good news! Hotmail is now called Outlook, because MS decided two products with that name wasn't enough.

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Thanks to my summer students and Prof Robin Johnson, NCL Maths's vimeo now has almost 300 videos of worked examples: vimeo.com/nclmaths

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my mind was blown until I realised this was a recipe from Ready Steady Cook. Penne arrabiata with avocado and rocket: bbc.co.uk/food/recipes/p…

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In reply to @vickytnz

@vickytnz no it isn't? en.wikipedia.org/wiki/Tasmania

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"Hey, I have an entire book about pasta sauces! Thanks, mum!" ...... "No arrabiata. Thanks rescinded, mum."

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Is Chicks On Speed's lesborotic beat poem 'Kaltes Klares Wasser' a reference to aim's seminal trip-hop classic, 'Cold Water Music'?

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Regret-on-arriving-at-work-that-you-didn't-have-a-bacon-sandwich-for-breakfast. #newgermanemotions

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Ahhh what no film at monument, the day I actually need to hang around monument for a bit? It's make me so mad I grammarn't.

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This pigeon really doesn't like being stared at. EVER SO SORRY WAS I INVADING YOUR PERSONAL SPACE MILORD?!?!

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In reply to @NewcastleNE1

@NewcastleNE1 thanks, I just saw the chaps putting the deckchairs out.

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Can't click on "Save changes" without internally going "chaaaaaange places!"

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In reply to @pkrautz

@pkrautz I have now. Wow, it's badly written! gist.github.com/christianp/637…

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I'm running a computation that has taken longer than five minutes to finish. I feel dirty, almost like an applied mathematician.

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In reply to @DaleyMaths

@DaleyMaths the applied guy next door is already rewriting it in fortran. I'm safe!

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In reply to @ebuie

@ebuie I've got an excerpt in an anthology, but it's very hard to get hold of an original copy

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In reply to @ebuie

@ebuie maybe. I was coincidentally looking at it a couple of days ago, and that sounds familiar

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In reply to @MouldS

@MouldS Canis Coplin

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ok, who set my TERM environment variable to 'dumb'? That's been annoying me for a while.

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Going to try the new Front Street Deli. It looks nicer than Deli Bar One did, but will it be as tasty? #tynemouthproblems

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In reply to @aPaulTaylor

@aPaulTaylor it went out of business, if that's any consolation

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Well, the pizza slice looked a bit cold and miserable, but this ham and coleslaw sandwich was pretty great

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In reply to @aPaulTaylor

@aPaulTaylor is "a deli bar" a thing? There was a counter, which I suppose could serve as a bar...

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In reply to @pkrautz

@pkrautz the badges on mathjax.org/community/math… all link to a URL which gives a "Forbidden" error

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Spent 5 mins writing a FB message in French. While typing an e-grave on the numpad, accidentally pressed page-back and lost it. #sacrebleu

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Words to be aware of when keming text: plus.google.com/11130061692066…

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In reply to @TweetsofCushing

@TweetsofCushing I'm rocking out / I want the world to know / Got to let it show

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Forms which put error messages in red are my worst enemies. I can't see them!

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In reply to @CardColm

@CardColm how so?

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looking-in-the-emergency-chocolate-drawer-and-finding-something-excellent-surprise. #newgermanemotions

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"Metro Ken" is an anagram of "me no trek". Coincidence?

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Ooh! Meissner tetrahedra from mathsgear.co.uk. Diametric! youtube.com/watch?v=b0YSkF…

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September

This decorator is impossibly cheerful. I wonder if it's the paint fumes.

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In reply to @aperfect

@aperfect hipsterrrrrrrrrs

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In reply to @HoeJodgkiss

@HoeJodgkiss truth. After about five sandwiches, I was completely over pulled pork

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In reply to @standupmaths

@standupmaths bit.ly/mileofpi

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In reply to @christianp

@standupmaths (though it would've been more helpful for tracking if I'd let you set that up...)

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About to record an All Squared podcast but I have no audio tea towels! Where's @stecks when you need her?

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In reply to @standupmaths

@standupmaths while you're twittering, did you see my Meissner tetrahedra video? youtube.com/watch?v=b0YSkF…

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Is it by design that you now have to save a post in wordpress before the preview updates?

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In reply to @MathsWorldUK

@MathsWorldUK just seen you're up in Newcastle for BSF. Fancy meeting for a drink/chat during the week?

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This month's Puzzlebomb has a puzzle thought up by me, CP! aperiodical.com/2013/09/puzzle…

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In reply to @lostinrecursion

@lostinrecursion Ceilidh Table. I didn't write it - I came up with the idea and was lazy until @stecks and @aPaulTaylor wrote it :P

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In reply to @lostinrecursion

@lostinrecursion it's a nice easy puzzle, once you work out the rules

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I love @TweetsofCushing's idea of 'trivial'

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In reply to @TweetsofCushing

@TweetsofCushing didn't you? Who did?

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In reply to @gwstagg

@Tegglington @TweetsofCushing trufax. If I'd thought for even a second, I would've realised.

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I've updated my "how to get nice maths on your blog" post with instructions for those using IntenseDebate comments: checkmyworking.com/2012/01/how-to…

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A hole? In MY sock?! Extraordinary!

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This has to be the most dismal work email this September.

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When mathematicians leave to work in industry, is this where they go? flickr.com/photos/4433583…

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In reply to @standupmaths

@standupmaths ehh, it's a bit 70s-fabulous. Wasn't someone put in charge of renovating it a while ago?

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In reply to @standupmaths

@standupmaths ah. ha!

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Maths people coming to @BritishSciFest! Fancy meeting for drinks on Sunday? @standupmaths @stecks @DrSaraSantos @MathsWorldUK etc.?

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In reply to @standupmaths

@standupmaths I now have the title of my airport easy-reading bestseller: "Finding the Qibla on a Klein Bottle"

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In reply to @standupmaths

@standupmaths forget that, go and ogle the Curta calculator!

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In reply to @standupmaths

@standupmaths PHWOAR #itsnotsizethatmatters

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In reply to @standupmaths

@standupmaths I'd like a gap of at least one cell around that - the 'on' block at the top left means it'll break immediately.

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In reply to @icecolbeveridge

@icecolbeveridge checkmyworking.com/misc/makebigma…

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In reply to @KSCMaths

@KSCMaths as a red-green colourblind person, I think I should inform you I can't see half the text on that

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'NOUGHT POINT FIVE DOZEN'?! Also known as 'half dozen', or even 'six'. This menu knows how to rile a mathematician.

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In reply to @ProfNoodlearms

@ProfNoodlearms @evelynjlamb maplesoft's PR are v annoying. Once sent email saying "you unsubscribed from our emails, so won't have seen.."

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Yo dawg, I heard you like rhyming with bridge a smidge, so I put a frijj in your fridge so you can abridge while you ridge a midge

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In reply to @evelynjlamb

@evelynjlamb happy birthday!

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In reply to @standupmaths

@standupmaths what's your schedule today? I'm free from 4-ish onwards

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In reply to @DrSaraSantos

@DrSaraSantos haha, where's that? I've never seen it before

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In reply to @vickytnz

@vickytnz La Cage aux Folles? Depressing that that's the best I can do

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In reply to @stecks

@stecks @standupmaths that suits me. I could meet you at the station, and go to somewhere like the Forth on Pink Lane?

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Very very very pleasing thisiscolossal.com/2013/09/joseph…

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Every now and then I go to theweekly.co.uk, hoping a hopeless hope that it has returned.

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#gintegral "@stecks: who else is in NCL for @BritishSciFest and does maths and wants to join us for a drink tonight? Do we need a hashtag?"

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In reply to @stecks

@stecks #invariantpubspace

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In reply to @stecks

@stecks actually, didn't @standupmaths come up with a good name for when mathematicians meet for drinks a few years ago?

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In reply to @peterrowlett

@peterrowlett I've fiddled with the cache plugin's settings and it should keep up to date now

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Ah, Coventry: the city of lights.

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Sent a text to my girlfriend without pointing out that the current time was a palindrome. So there is hope that I may yet be cured.

1 favourite 1 retweet

I chose... poorly. The legroom allowance in this lecture theatre seems to have been calculated expecting an audience of munchkins.

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I'm now sitting on the aisle steps so I can stretch my legs out. I bet this building has won awards

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Just realised half the (fixed) seats in this room don't point toward the speaker

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In reply to @C_J_Smith

@C_J_Smith yes, good to meet you too. Sorry if you were expecting to have time to chat later! Maybe another time

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Fixed a stunning omission from yesterday's toast piece, and found a good suggestion from @TweetsofCushing. aperiodical.com/2013/09/toast-… #yeahtoast

1 favourite 2 retweets

Finally got my hands on a copy of @NCLScienceComic. It's really good!

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In reply to @Bishnavitch

@Bishnavitch wednesdays are usually terrible for me. Was meant to be seeing my gf but I'll ask if she wants to see a film

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In reply to @Bishnavitch

@Bishnavitch yes and no, respectively. Midweek is when I do things!

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In reply to @Bishnavitch

@Bishnavitch I'm not as keen on films as you are!

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In reply to @Bishnavitch

@Bishnavitch we have a yes to a film. What film and when?

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Adding a tomato and some shredded lettuce to food makes it a salad, right? Because otherwise I'm just eating a box of fajita leftovers.

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12:03. An anagram of an arithmetic sequence is still interesting, isn't it?

1 favourite 0 retweets

In reply to @ebuie

@ebuie I know a purported proof, which I disagree with

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Sent the almost-a-week reminder for Newcastle @MathsJam. Get on the list by saying hello to newcastle@mathsjam.com. mathsjam.com/index.php?cont…

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In reply to @BritishSciFest

@BritishSciFest Grownups enthused by the maths at the festival might enjoy Newcastle MathsJam, which is next Tuesday mathsjam.com/index.php?cont…

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Another afternoon lost to the mixture of InnoDB and MyISAM database tables. Go home, cp, you should be drunk.

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Look! Someone made Arty Maths into a book, and picked a better name, and never had anything to do with Arty Maths: indexbook.com/libro.php?idLi…

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith Pentago! Ace game.

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In reply to @C_J_Smith

@C_J_Smith why resist?

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In reply to @daveowhite

@daveowhite @plusmathsorg it would have to make metallic grunting noises when it gets in and out of chairs

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The Hello World Quiz (helloworldquiz.com/#/game) just reminded me about REBOL. I have no idea what I used to use it for, but WOW!

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Why does this site have "small text" as an accessibility option? Are there people who find large text intimidating?

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In reply to @OddballDave

@OddballDave @charliesgames a Let's Play might be good

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Crikey O'Reilly, my summer students did loads! I keep finding more good stuff on this wiki. #pleasedsupervisor

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It was pointed out to me by @Rokker816 that cooking doesn't commute, so maybe people who don't like fish and chips would like chips and fish

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The @My_Metro PA system is pumping out some thumpin' next-wave glitchcore beats. Or it's broken.

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The best bit about planning a trip to Berlin is that I get to buy a Falkplan! #excited!

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help my head melted because Bayes' theorem is exothermic bbc.co.uk/news/magazine-…

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In reply to @CardColm

@CardColm we just recorded the tops and tails for your episode of All Squared. Should be out in a day or two

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In reply to @peterrowlett

@peterrowlett @mathsarcade fancy! I'm still at the cardboard box stage. Might invest in a plastic box if all goes well.

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"how likely are you to use this service again?" is a terrible question on a feedback form for a government service you must use

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In reply to @pelagikat

@hornmaths @MathsJam @standupmaths @stecks I can do it. Where's the new location?

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In reply to @pelagikat

@hornmaths righto

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In reply to @pelagikat

@hornmaths but which one are you in this month?

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In reply to @pelagikat

@hornmaths ok, I've updated mathsjam.com and the mathsjams map

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The need for a word to describe the moment you realise you're getting nothing out a terrible thing you're looking at on the web grows daily

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I think 'fehhhhhh' might do it. I will form a committee to decide how many 'h's there should be on the end. What's the limit for a hashtag?

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In reply to @CloudoidLtd

@CloudoidLtd @MathsJam added, ta!

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I can't see how labelling one 50g slice of this pack of butter helps me, or if I'm missing something

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Yes sir!

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In reply to @aperfect

.@aperfect only for exactly 50g. They used to have every 50g increment marked

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In reply to @aperfect

@aperfect nope

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In reply to @bemyguestberlin

@bemyguestberlin this: vimeo.com/32568928

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This groovy animation explains why I love the Falkplan so much: vimeo.com/32568928

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Looks like some component of the cabling and gadgetry that gives me internet has been flooded again. Oh well! I'll find something else to do

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Newcastle @MathsJam is TOMORROW! 7pm onwards, upstairs at the Charles Grey. Puzzles, games, questions, etc. mathsjam.com/index.php?cont…

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In reply to @vickytnz

@vickytnz a reasonable thing to do.

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In reply to @sxpmaths

.@sxpmaths ooh, good spot. I've updated my mobile maths games page: aperiodical.com/2013/03/games-…

2 favourites 0 retweets

Maths teachers, I need you: where's better than BBC Bitesize for resources on basic numeracy?

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Ooh! There's a version for adults called Skillswise bbc.co.uk/skillswise

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In reply to @Nat_Numeracy

@Nat_Numeracy thanks! I just remembered about your site after tweeting :)

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In reply to @nrichmaths

@nrichmaths when I click a topic header in the front page slider, the URL in the browser's address bar doesn't change. Makes linking hard!

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In reply to @icecolbeveridge

@icecolbeveridge I need things I can link to

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I had never seen this stupid heraldic creature until today en.wikipedia.org/wiki/Enfield_(…

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When did threadless stop paying UK import tax? The fee was trebled by Royal Mail's handling fee.

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Posted a big long comment about running a multi-author blog on Google+ in response to someone asking about it: plus.google.com/u/0/+RaymondJo…

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Tonight: Eastenders spin-off starring Ross Kemp, centred on a struggling car-recovery business in Scotland. Grant Heft Auto Fife, BBC 2, 9pm

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whaaaaaat?! Since when are games £56?

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In reply to @ebuie

@ebuie I found the best bit was the zoomy projection of every page at the end. The presentation of the real books was pretty poor.

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I thought I was looking forward to MathsJam tonight, but now I'm looking forward to lunch more. Forgot breakfast :(

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In reply to @icecolbeveridge

@icecolbeveridge MathsHamlet

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In reply to @ebuie

@ebuie yes! I thought that was odd too. I thought maybe they were showing a different page each day, but probably not.

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@MathsatDAS hello! I'm a former DABS pupil. Who's doing the twittering?

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Looking up and thinking David hasn't written anything on the blackboard, then realising it's all in red, is like seeing the fnords.

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@NINETYNINEuk What time are you open until today?

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My grocery shop: look at the 1st aisle, leaving the 2nd, then come back and look at the 2nd aisle, leaving the 1st. That's my produce rule.

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In reply to @vickytnz

@vickytnz mathsjam tonight?

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In reply to @TeachingInDC

@TeachingInDC there used to be / still is a DC @MathsJam! Didn't you go? mathsjam.com/index.php?cont…

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Going to be a little bit late to mathsjam, sorry

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In reply to @ebuie

@ebuie we've had to move downstairs! The function upstairs isn't us. We're in the alcove to the right of the bar

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In reply to @MathsJam

@MathsJam NCL - MAN: of course we can. Rhymes with 'elephant'

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I've made a bookmarklet to replace WordPress.com's rubbish image-based maths with @MathJax checkmyworking.com/2013/09/a-book…

1 favourite 2 retweets

In reply to @ebuie

@ebuie yes, I'm glad you came! It was a particularly busy MathsJam.

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hi i've just noticed that angle and angel are one transposition away is this the kind of thing i should put on twitter

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Blog post: 6 pieces involving patterns and functions by @Gelada checkmyworking.com/2013/09/6-piec… (Photos: flickr.com/photos/christi…)

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$e^{\Large{f(x)}}$ isn't cool, is it? These people seem to have taken personal offence at small inline-mode characters.

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AAAAAARG. That's the second time I've accidentally ordered a girl's t-shirt from threadless.

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Following @pkrautz's suggestion, I've made the mathjax bookmarklet a bit better, and now it works on wikipedia too checkmyworking.com/2013/09/a-book…

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In reply to @Rosalot

@Rosalot wow, good work!

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Head of School has told me to go shopping for more art. Hooray!

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In reply to @aperfect

@aperfect @brittneybean but don't worry, there's still plenty of brutalist rubbish in the rest of Newcastle

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In reply to @vickytnz

@vickytnz The Notebook is a chick flick

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I've changed my avatar to a pic of LEGO Babar! Sorry if this is confusing but it reflects my core brand values in a way my face never did.

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To my Goodbye Lenin DVD, wherever you are: I love you and I just want to know that you're safe.

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In reply to @elinoroberts

@elinoroberts ow ow ow ow ow! Even thinking about that hurts

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6:52am, a new record for squeaky car man! Maybe if he gets up really early one day he can take it to a garage and get it fixed

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I can do work and snot doesn't fall out of me if I remain horizontal.

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Is it ok to set up an auto reply saying "I'm out of the office, but if it's really important I can come in and you can catch this cold"?

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In reply to @vickytnz

@vickytnz I used to do that, but I'm down to just family members now. So much work!

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We came up with supervillain names for everyone in the office except me :( #phdcoolgang

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a bloo hoo hoo :_( RT @icecolbeveridge: @christianp But you already HAVE a pretty good supervillain name.

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In reply to @CloudoidLtd

@CloudoidLtd but it's RGB clockwise

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Thanks to @stecks, you should now call me... THE PERFECT STORM

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.@TweetsofCushing (Dave Reckoning)'s supervillain superpower: he can see Daily Mail headlines... from the future!

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.@Rokker816 (Automatom)'s supervillain superpower: he can keep time... like clockwork!

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.@jiyameng (Sinner-Ji)'s supervillain superpower: when he does good deeds... they're really bad deeds!

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My (The Perfect Storm) supervillain superpower: I can control the weather... in a teacup!

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I am 50% older than the freshers. Ow.

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I've finally made it! The Herschel enneahedron. vine.co/v/h6zmvB3UFZU

1 favourite 1 retweet

In reply to @lyd_w

@lyd_w it's named after the guy the Herschel building is named after. I'm preparing a poster/activity thing. It has many cool properties!

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In reply to @vickytnz

@vickytnz maybe that photo just has a lot of sentimental value for him so he's less likely to see it's inappropriate for the context?

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GTA V is quite a bit harder when you're colourblind. "target the red rectangle" - nnnnnot happening

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When I was little I loved cascading emails so much, I directed all my efforts towards getting a job where people ask me to cascade all day

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They see me cascadin', they be hatin'. #cascade4lyf

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In reply to @TweetsofCushing

@TweetsofCushing @outofthenorm2 tantric geometry

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Working on the news queue / The news queue, yeah! -- The @aperiodical will awaken from its slumber shortly.

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Playing music on the radio before it's available to buy should be a crime

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I love these colourful polar bears! blog.gessato.com/2013/09/27/ok-…

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As far as I can tell, this spider caught this earwig and was carrying it away to eat in private. Or they're eloping.

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In reply to @vickytnz

@vickytnz have you seen the dessicated old women on the counter at the front of John Lewis? She is an advert for not wearing makeup

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An hour later, I've replaced the student's incorrect gnuplot image with a correct TikZ version. Thank god for StackExchange!

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In reply to @samholloway

@samholloway yo Imma let you finish but Bajka recorded the best Hunting of the Snark concept album OF ALL TIME. discogs.com/Bajka-In-Wonde…

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In reply to @Electrokittie

@Electrokittie you've... made real progress as a person?

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I've just found out that Blunt make a collapsible version of their umbrella. Fantastic! thebluntumbrella.co.uk/p/60/blunt-xs-…

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Clexample: something which is both an example and a counter-example of a rule. #autonyms

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October

In reply to @NoelAnn

@NoelAnn @peterrowlett @C_J_Smith how do you advertise your Maths Arcades?

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"Formule by BNF" posts maths art images at a frankly overwhelming rate on Google+ plus.google.com/11004296350597…

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It's time to play "semicolon or gunk on my monitor"!!!

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AAAAAAAAAAAAAAAAAAAAAAA!

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Interesting: when you click on a link to a PDF in Internet Explorer, all animated GIFs on the page stop.

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The only reference cited in MathWorld's page on ℵ₀ is Dundes et al's compendium of maths jokes. Finally the charade is laid bare!

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Conducting a COSHH audit for my new hospital restaurant, Vegetative Korma. (credit to @TweetsofCushing)

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I have no idea how @lyd_w consistently manages to beat me into uni by about a minute despite getting the same train

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oh, slashdot. What a sorry sight you've become. beta.slashdot.org

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In reply to @lyd_w

@lyd_w I'm just impressed that you're alert enough to be first off the train, or walk very quickly

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In reply to @vickytnz

@vickytnz you managed to get on the one train capable of cooking hot food! I always get a miserable packet sandwich

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Well done, the Android Flickr app, for making up your own share method instead of using intents. You made my life a little bit harder.

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In reply to @haggismaths

@haggismaths ooh, that reminds me that I meant to send you this a while ago flickr.com/#/photos/chris…

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In reply to @haggismaths

@haggismaths look at "an enneahedron for Herschel" at aperiodical.com. I'm at the shops at the moment so can't write more

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amazon form error messages are in red *and with a thick outline round them*!!!! Thanks, amazon! Thamazon!

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Crumbs, it's only four weeks until the big @MathsJam weekend.

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In reply to @Htbaa

@Htbaa texworks, or use your own text editor and the command line tools

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Today I saw housing developments called 'Fusion', 'Zest', and 'Opulence'. What is the world coming to?

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Ooh, the comfy jumper is the next one in the pile! #autumnthrills

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In reply to @TweetsofCushing

@TweetsofCushing wait until you see the plots @Gelada sent me about the art in the stairwell

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"Note: 7 is an arbitrary number, but should be more than sufficient". Uh oh. BAD CODE KLAXON

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In reply to @CardColm

@CardColm excellent idea! We're on it.

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"$sco->title = $sco->title;" -- I'm not in bad code territory any more. This is concept art.

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In reply to @C_J_Smith

@C_J_Smith @NoelAnn @peterrowlett following up the @mathsarcade, can any of you send me PDFs of the posters you put up, please?

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I like the look of the @Nat_Numeracy challenge a lot: nnchallenge.org.uk/home/index.html

1 favourite 4 retweets

In reply to @michaeljgrove

@michaeljgrove @unibirmingham Pro tip: cut that plastic wallet in half so it's easier to get a card out

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Paul Zorn shares my distinction between mathsy art and artsy maths: mathcomm.org/archives/paul-…

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Talking of; what's yellow and equivalent to the axiom of choice?

Zorn's lemon!

#lololololol

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In reply to @peterrowlett

@peterrowlett @C_J_Smith @NoelAnn @mathsarcade so I can ruthlessly plagiarise them

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In reply to @peterrowlett

@peterrowlett thanks! That's a nice poster.

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I'm particularly pleased with last night's bananagrams board. Connoisseurs will note the two closed loops

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I'm in 666 people's circles on Google+. Worried about what the day will bring. On the plus side, I got to make a stinker of a pun. #plusside

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Beep Beep animalsbeingdicks.com/post/633781777…

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In reply to @Bishnavitch

@Bishnavitch 720

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What is it about Mathematica that makes people write enormously long ramblings with very little proper mathematics? oftenpaper.net/sierpinski.htm

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In reply to @aPaulTaylor

@aPaulTaylor @standupmaths a Bayesian smoke detector would not be good.

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In reply to @Jisc

@Jisc did you know all students get open-source developer and server products for free via the goodness of their fellow man? #dreamspark

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Phwoar. Lovely diagrams. arxiv.org/abs/math/04034…

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Also free for everyone else MT @walkingrandomly: Just joined Manchester Uni? See the software we've released for free walkingrandomly.com/?p=4951

1 favourite 1 retweet

Die Hard + Die Harder = Die Hard With a Vengeance. (Die Harder)^2 = Live Free or Die Hard. #grubermatics

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In reply to @vickytnz

@vickytnz but sometimes it works very well, like this table of the finite simple groups irandrus.files.wordpress.com/2012/06/period…

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Tragedy #425: Betrayed by one of their own tragedyseries.tumblr.com/post/635791763…

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In reply to @HoeJodgkiss

@HoeJodgkiss there are plenty, but we tend not to make a big deal out of it

1 favourite 0 retweets

In reply to @TeXtip

@TeXtip would you consider replacing that with mathb.in ? It's a lot better

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Aww, this is a really nice idea: Remote Control Tourist remotecontroltourist.com

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FINALLY, A COLOUR QUIZ I CAN DO! Name that shade of corporate blue colin-gourlay.com/namethatblue/

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... but I haven't heard of half the companies. Oh well!

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It's time for a sandwich, but do I have the ingredients? BREAD QUEST

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In reply to @Beamish_Museum

@Beamish_Museum have they been trained to act as olden-time kittens did?

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In reply to @vickytnz

@vickytnz it's right next to Manors metro

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In reply to @Boxfresh

@Boxfresh What happened to the new large sizes stock you said would appear in September? My feet are getting chilly!

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How to tell if your dog is involved in a sex scandal blogfiles.wfmu.org/KF/2013/10/dog… (via metafilter.com/132630/Enemy-C…)

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In reply to @libraryncl

@nulibrs Deepest, Darkest Level 1?

1 favourite 1 retweet

Break out some fresh moves, it's Kurt Reidemeister's birthday en.wikipedia.org/wiki/Reidemeis… (via @mathshistory)

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In reply to @stecks

@stecks yeesh, what does a place have to do to get a 10?

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Every time I need an MOT, I have to find my mechanic's garage on Google Street View to remember its name so I can look up its phone number.

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#noundescribingtheaspectofthehumanconditionrelevanttothepredicamentdescribedinthetweet

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Yell has bought a lot of ads on facebook of the form "Need <rarely-used service>? Try <company in Sunderland>!". WHY?

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MediaWiki syntax is visually difficult: ''italics'' or "quotes"?

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WHAT. RT @adrianshort: London police steal rough sleepers’ property: j.mp/19Gr9x3

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... turns out that happened in May. But still. YEESH.

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Today I learned that @TweetsofCushing is 'up' on the national lottery. That is a completely appropriate thing to be true about him.

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In reply to @OddballDave

@OddballDave deely boppers?

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The only mathematical relative I know about is Hazel Perfect, who was a group theorist like me! I was so happy when I found her book. #ald13

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@TwentyThree @TweetsofCushing @aperiodical thanks very much!

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In reply to @UoBMSC

@UoBMSC @michaeljgrove that seems a very high number! What time frame was this?

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In reply to @michaeljgrove

@michaeljgrove @UoBMSC ok! Similar to us then.

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Francophones! Can you help me find the French word with the most silent letters? It's not on this list of cool words: finallyover.com/categorie-1028…

0 favourites 1 retweet

J'ai quatorze problèmes dont rimer avec quatorze est un. fr.wiktionary.org/wiki/Annexe:Cu…

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In reply to @mountain_ghosts

@jcoglan are you trying very hard to not use LaTeX?

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#Skanavi problem 7.325: Show $\log_3 (2) \cdot \log_4 (3) \cdot \log_5 (4) \cdot \log_6 (5) \cdot \log_7 (6) \cdot \log_8 (7) = \frac{1}{3}$

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#Skanavi problem 7.325 in unicode: log₃(2)⋅log₄(3)⋅log₅(4)⋅log₆(5)⋅log₇(6)⋅log₈(7) = ⅓

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In reply to @CloudoidLtd

@CloudoidLtd lazy font design!

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In reply to @C_J_Smith

@C_J_Smith @DanielColquitt @professor_dave I'm on Round 2. You'd think they could at least all agree on one virus to spread...

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Struggling to understand the thought process that led the author to write "matrix of size p$\times$q".

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In reply to @peterrowlett

@peterrowlett straightedge and compass construction golf can also be fun. Challenge them to construct shapes in the fewest steps.

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In reply to @DrSMJames

@sam_james30 some lost-looking tourists refused my help yesterday. Maybe they were just admiring the craftsmanship that went into their map

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'zero','nought','null','nothing'. Does any number have more names, in English? 'Hundred','century','ton', ... ?

0 favourites 1 retweet

I have finished the Canada bit in GTA5's story and I'm sort of sick of it. Is there any point finishing it, or should I not bother?

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner small beans. The private school in my village got its £5million debts paid off by the government and became a state academy

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In reply to @ebuie

@ebuie so if I instructed you to immanentise the eschaton, you wouldn't know what I wanted you to do?

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These are the weirdest matchbook covers I've ever seen. bibigreycat.blogspot.co.uk/2013/10/momesa…

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I'll never be this cool. I'll never have a monkey companion who wears glasses and smokes a pipe. artdecoblog.tumblr.com/post/641405956…

0 favourites 1 retweet

"I am not smart enough for this book" says Amazon reviewer of maths book. "Another notoriously bad impulse purchase." amazon.com/exec/obidos/AS…

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In reply to @elinoroberts

@elinoroberts the funny thing about living in the same village as you is that often I have a thought and then you tweet it

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Fed up with Windows 8.1, I've installed Ubuntu again. Now the wifi connection only works for 10 seconds after connecting. Boo.

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt well yes, I was quite surprised it managed to install the drivers at all this time.

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Gosh the instant LaTeX preview in aperiodical.com's comments box is useful.

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In reply to @haggismaths

@haggismaths I'm giving a talk in Edinburgh Uni on Wednesday. Can I pop in to see you afterwards?

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In reply to @haggismaths

@haggismaths an IOP thing about eassessment. We'll both be at big mathsjam, anyway

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In reply to @stecks

@stecks @peterrowlett *waves fingers*

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In reply to @mountain_ghosts

@jcoglan you can do without ^.* at the start, no?

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I've put my knockout.js binding handlers for @MathJax on github: github.com/christianp/kno… (Demo: checkmyworking.com/misc/knockout-…)

0 favourites 1 retweet

Making UI changes to @NclNumbas so it's really hard for students to forget to submit their answers. `> git checkout -b dont-let-them-fail`

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"I just want to read this book and lick it and... have fun." - @TweetsofCushing

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In reply to @peterrowlett

@peterrowlett I was thinking of aperiodical.com/2013/06/a-bit-…

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In reply to @peterrowlett

@peterrowlett and 'golf' because 'code golf' is an established thing where you try to write the shortest program

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Alert, Edinbourgeois: can anyone entertain me tomorrow afternoon? I can perform maths if required.

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The Michael and Lily Atiyah gallery in the James Clerk Maxwell building at Edinburgh University

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@Sara_Tindall @peterrowlett I cleverly caught a cold before term started this year and gave THEM diseases!

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When will lecture theatres upgrade from 1024x768 projectors? 2048?

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN you're doing Stockton again?! Are you mad? Good northern coverage though; I'll book tickets for Durham when TBC becomes C

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Couple is having *the most* middle class argument. One insists a third person is very brave for "putting skis on and getting up a mountain"

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Where's a nice place to get a hot chocolate near waverley station in Edinburgh?

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Friends, I plumped for the Storytelling Café. It's really good! I also had a brownie which was also fantastic.

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This old dude across the street is nowhere near as jazzed about buying tartan as his wife is.

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In reply to @ashleyhwright

@ashleyhwright you're on the next carriage down from me! What a coincidence.

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Just added the 500th unit test to the @NclNumbas maths/algebra system. github.com/numbas/Numbas/…

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My friend @TweetsofCushing wants to know what these error terms are

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"DodecaLEDron" mustn't have done well in focus groups. thenanoleaf.com

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In reply to @poveryant

@poveryant Would you mind sending me the file for the 3d-printed enneahedron please? I'd like to print one for a talk I'm giving

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I've written a page to play about with the @MathJax 2.3 beta and its spiffy new fonts. checkmyworking.com/misc/MathJax-p…

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I like today's tragedy series tragedyseries.tumblr.com/post/648878172…

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Ambassadors was good. bbc.co.uk/iplayer/episod…

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The coast is impossibly good-looking at the moment, with the setting sun and a little bit of fog. God I love Tynemouth.

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A lightning storm is starting, and there are people surfing! If only I had a good camera

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Wow that plane just did a quick turn to avoid the thunder cloud. It's turned around to have another go further out to sea, I think

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Those toddlers I saw ten minutes ago trick-or-treating early to avoid the scary big kids must be having a fun time.

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Talking of... a black cat has joined me to watch the storm.

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Oh no, that plane's just doing loops. And the cat seems to have caught something in the long grass above the lido. He's off, with his prize

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I've just discovered that this iron, which I've owned for two years, has a red light which comes on when it's heating up. #colourblindlife

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In reply to @standupmaths

@standupmaths I prefer to visualise sorting algorithms with Hungarian folk dancers. youtube.com/watch?v=lyZQPj…

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Ubuntu has better driver support for my laptop than windows 8.1 does. What upside-down world is this that we live in?

1 favourite 0 retweets

In reply to @jamesgrime

@jamesgrime @standupmaths you both check your privilege, I'm still on Life Shareware. I can only access the first three months of the year

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In reply to @pelagikat

@hornmaths yes, it is me who likes koalas. #actual #koala #fan

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In reply to @standupmaths

@standupmaths @jamesgrime it would be nice if every day didn't start with a nag screen asking me to send a cheque to a PO box in Jordan.

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In reply to @standupmaths

@standupmaths but descending hardness is the standard way to do it, right?

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In reply to @poveryant

@poveryant I have space, but it's a back seat. Setting off just before 7am

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I just don't understand the Northumberland Street blanket man's business model.

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In reply to @MrHonner

@MrHonner f(x)=1 laughs at their puny attempt at a definition.

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Current status: involuntary afternoon off work

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This is how you do a blackboard bold N. vine.co/v/hD5Zp2A0TlQ

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When we compute inverses, we do it properly.

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(joint work with @TweetsofCushing)

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In reply to @Bishnavitch

@Bishnavitch we just watched Cloudy with a chance of meatballs 2 last night.

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What should I talk about at the big @MathsJam this weekend: Herschel's enneahedron, or integer sequence reviews?

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In reply to @aperfect

@aperfect YES

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In reply to @ben_nuttall

@ben_nuttall great, another pedant! How can we coördinate our efforts?

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In reply to @standupmaths

@standupmaths will the 5 minute countdown computer be making a reappearance at MathsJam?

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In reply to @standupmaths

@standupmaths will it sometimes give us up, and/or occasionally let us down?

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November

I can never crack this many eggs without worrying about the arrival of Zuul the Gatekeeper of Gozer.

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Spotted in the Hermitage Inn in Warkworth: another member of the clan!

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In reply to @mountain_ghosts

@jcoglan god yes. JS functions that take a few different types are so annoying. jQuery does "first param might be a bool" very often

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In reply to @MathsJam

@MathsJam Is anyone interested in a calculation contest using a slide rule and log tables in one of the breaks?

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In reply to @MathsJam

@MathsJam aperiodical.com/2012/11/recrea…

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In reply to @stecks

@stecks @aPaulTaylor I forgot to say bye to you! It was good to all be in one place again. Until next year! Or any earlier next thing!

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A physical anomaly at Wetherby services. How many coins are causing the jam?

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In reply to @peterrowlett

@peterrowlett I see your nine, and raise you to ten.

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Told @TweetsofCushing he should go to a @MathsJam conference. Response: "I am a MathsJam conference". Can't argue with that.

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A marvellously concise proof that 5!/2 is even: mathoverflow.net/questions/4251…

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Gosh this is a lovely idea: freecakesforkids.org.uk

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In reply to @RGS_maths

@RGS_maths what textbook is that? It looks similar to a Russian one I have by Skanavi

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In reply to @RGS_maths

@RGS_maths aha, more Russians! David Singmaster insisted to me at the weekend that they're not a purely Russian phenomenon. Not convinced!

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In reply to @gaussfacts

@gaussfacts does the posting of new facts mean you've sorted out the spam problem? I was disheartened last time I went to moderate

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In reply to @evelynjlamb

@evelynjlamb my vote is for analyst

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Pretending this cold rain is actually congenitally hot snow. It's a winter wonderland!

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In reply to @profkeithdevlin

@profkeithdevlin It's almost at the point where you could use them in a knights and knaves puzzle

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The results are in: I have extreme protanomaly! I spent a fun afternoon with neuroscientists doing colour tests.

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In reply to @evelynjlamb

@evelynjlamb yes, since I was tiny. I have a particularly bad case!

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In reply to @evelynjlamb

@evelynjlamb I just did the tests today because my friend doing a neuro PhD wanted to see how they're done

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Having fun trying to decide how to localise my JS library's error messages.

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independent.co.uk/news/uk/home-n… I know this dude! He's really good at maths. So pleased he's doing something cool.

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In reply to @gwstagg

@Tegglington deduce eyeballs are emitting light; plummet into immediate body horror crisis?

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In reply to @peterrowlett

@peterrowlett we haven't even run ours yet, so no for now.

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A bit tired and a bit glum, so I'm going to my happy place: e1m1

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As the corpse of the monstrous entity CHTHON sinks back into the lava whence it came, I feel a lot better.

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5pm today! RT @MathJax: Don't forget: our first MathJax Hangout on Air -- Q&A with Phil Schatz and @christianp ow.ly/qzAo5

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In reply to @aperfect

@aperfect I am suddenly more interested in visiting London

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In reply to @C_J_Smith

@C_J_Smith "Handyman's Ear" sounds like the name of a village in the west country

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Attack of the witty till maintenance guy.

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A pub near here gives a free pint to any scientist who has a paper published. Nice, but points lost for not calling it the "No-Bill Prize"

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Top celeb fact: The reason Ant always stands on Dec's right is that they both walk in to work. That's right: Ant and Dec don't commute.

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It would be nice if operators were first-class objects in javascript.

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I did a Hangout on air Q&A with @pkrautz and Phil Schatz about @MathJax last Friday. I've posted about it on my blog: checkmyworking.com/2013/11/mathja…

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An anagram of @robinhouston's name is "no enthusiasm or job". An anagram of mine is "erect finch rapist". Thankfully, neither is accurate.

1 favourite 1 retweet

In reply to @Boxfresh

@Boxfresh Any sign of the size 13s you said would be arriving quite a while ago?

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In reply to @Boxfresh

@Boxfresh can you be any more specific than "soon"? That plain blue pair is OK, but I'd hate to buy it just before nicer ones arrive

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In reply to @helenarney

@helenarney another, less sensible, friend of mine posted those exact two points as positives last week during her trip

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Oop, just noticed that November @MathsJam is next Tuesday! Time to send my reminder email...

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In reply to @CloudoidLtd

@CloudoidLtd (mod 1000)

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In reply to @jamesgrime

@jamesgrime @standupmaths hah, I literally checked the site 20 minutes ago to see if they were up

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So many <span> tags. Starting to mistype as <spam>. There should be a preprocessor. To process my <spam>.

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In reply to @ben_nuttall

@ben_nuttall this springs to mind achewood.com/index.php?date…

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No, this is not a Möbius band! It's a normal loop. Bad architects! dezeen.com/2013/11/04/nex…

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Ooh, my new parking permit has a pleasing expiry date

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I just spent ten minutes looking for good covers of the Monkey Island theme and I didn't find any and now I am sad :(

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In reply to @haggismaths

@haggismaths I might be able to help you... what do you want the LaTeX for?

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Why do user ratings get so little attention in music apps? Now everything's streamable, my ratings are the only valuable part of my library

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Years ago I had a Python jukebox script that auto-rated songs based on how often you listened to completion or skipped them. It was great!

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In reply to @haggismaths

@haggismaths I have a thing which converts easily-typed calculator syntax to LaTeX, and I could put it in a page you could tweet from

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Another thing: since Google Music can't sort by date added, there's all this music I haven't listened to as much as I'd like

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"Why should engineers and scientists be worried about colour?" research.ibm.com/people/l/lloyd… Studiously ignores inaccessibility to the colourblind

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At home midday on Friday freezing to death under a blanket because I saved enough money to be exactly this miserable. No I'm not a pensioner

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In reply to @benjamintormey

@BenTormey can you remember the name of that French guy who self-published a mathematical monograph with colour plates of nude women in it?

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In reply to @standupmaths

@standupmaths @QMUL I've always thought QMUL should do a Neal Stephenson Qwghlm tie-in.

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In reply to @benjamintormey

@BenTormey superb!

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Buying leather and painting everything black for my new wedding parlour for goths, "Doom and Groom".

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Breaking up the band to concentrate on my exciting new restaurant venture, Gnocco Ono.

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In reply to @standupmaths

@standupmaths I think it's pteriffic

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Because the kiwi kept losing his hat, we've added a chinstrap. Now he can wear it at a jaunty angle!

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Fancy earning a fiver? Resolve @TweetsofCushing's conjecture for him. (Difficulty: Erdős) …venturesofdavidcushing.blogspot.co.uk/2013/11/a-conj…

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Went to Michael Gove's website to get a link for a story. Saw the picture on the right. brb never sleeping again michaelgove.com

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In reply to @libraryncl

@nulibrs good work: you've even got a visible concrete arm in the photo holding the camera

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Newcastle's Maths Arcade is finally happening! Open to all students at @STEMNewcastle.

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Goddammi!, I thought I'd found a new sequence but the OEIS had to go and enrich my life with facts oeis.org/A001595

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(A001595 might be a record for lowest-index sequence found while believing I had a new one)

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In reply to @stecks

@stecks whuh?

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In reply to @stecks

@stecks Ahh!

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In reply to @stecks

@stecks on inspection, the instructions have no such footnote

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Projects I am currently involved with: Maths Aid; Maths Jam; Maths Arcade. #nomenclazy

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In reply to @Andrew_Taylor

@Andrew_Taylor see also: basketball hoops

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Oh yes, and that one. RT @michaeljgrove: @christianp Ahem...Maths Wiki?!

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In reply to @evelynjlamb

@evelynjlamb Pictures!

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I'm off for pre-@MathsJam dinner. Which is at 7pm in the Charles Grey pub, by the way. I'm not doing too well at promotion lately...

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A 45 minute wait for food, indeed! Good job I'm already planning on being here that long.

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In reply to @ColinTheMathmo

@ColinTheMathmo Yoneda lemma? Igotta lemma!

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Inline links coloured in red: ARGGGG!

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In reply to @My_Metro

@My_Metro the position of the card scanners at Tynemouth is terrible for people tapping out. You have to turn round and hold everyone up

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Just gave the OEIS some money. They deserve it! aperiodical.com/2013/11/oeis-f…

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"2 10^1059002 -1, or 199999...99, is prime. It's the first near-repdigit prime found with over a million digits." via mathpuzzle.com

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In reply to @_beanbot

@songdrop I keep unsubscribing from product update emails, but you keep sending them. What's the deal?

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Yes I am very interested sign me up for twelve shapejs.shapeways.com

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Great work guys! (Peeked at the source: nested tables, then an iframe, then a link which didn't set target properly)

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Look out for mine and @TweetsofCushing's new project, out next summer: the Pop-Up Book of Integer Sequences (PUBIS)

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In reply to @fuzzmonkey

@fuzzmonkey @jcoglan I've always thought this is something vault could have built-in: a list of settings for popular sites.

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In reply to @cartazio

@cartazio @pkrautz where's your blog? Can I take a look?

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In reply to @icecolbeveridge

@icecolbeveridge not sure: were you rickrolled or was the shop?

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In reply to @ben_nuttall

@ben_nuttall yes! I did it once but I don't know what I did to make it happen

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I see Flash has reached Java levels of irrelevance: they're now trying to bundle McAfee with updates.

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The NOTY competition is back! nameoftheyear.blogspot.co.uk/2013/11/noty-u…

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In reply to @elinoroberts

@elinoroberts @jjsanderson congratulations to you both!

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In reply to @DanielColquitt

@DanielColquitt "I Did It: The Daniel Colquitt Story, Chapter XII"

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The queue outside Frankie and Tony's is getting ridiculous. Time to find a different sandwich place!

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In reply to @C_J_Smith

@C_J_Smith is that a quote from The Tick? It feels like it.

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In reply to @mountain_ghosts

@jcoglan lesson: stop using computers and take up woodwork

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Where's the 8.30 cool crew? Is low rail adhesion to be feared more than I thought? This is a lonely platform.

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New hobby: mixing Robinson's squash flavours.

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Two people with the same name working in quantum mechanics, 60 years apart. Struggling to rule out time travel.

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Gauss's doctoral supervisor was called Pfaff. I can't help but start @pfafffacts now.

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*wist* en.wikipedia.org/wiki/List_of_B… #somuchwist

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I did a podcast with @TweetsofCushing. We talked about all sorts of unusual maths aperiodical.com/2013/11/cushin…

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Idea: minecraft with the minesweeper ruleset.

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In reply to @AlgebraFact

@AlgebraFact @AnalysisFact if you liked those, I'm about to do an interesting esoterica post which will have loads of fun papers in it

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Research top tip: when writing out the price of a closed access paper, don't take your finger off shift. e.g., "this paper costs $"%!"

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Considering changing jstor.org/stable/ to jstor.org/unstable/ to have my conception of what knowledge can be smashed to smithereens

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... it just returns a blank page, not even a 404. So is knowledge fundamentally consistent? Are there no unknowables? #existentialtypocrisis

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@dannytybrown I can do 'free' and 'good', but 'simple' is subjective: numbas.mathcentre.ac.uk

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This Chinese poem is palindromic in a ridiculous number of ways. en.wikipedia.org/wiki/Su_Hui_(p…

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@dannytybrown (I'm the developer of Numbas, so can help with any queries or feature requests)

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In reply to @peterrowlett

@peterrowlett ssssh! For all they know, @TweetsofCushing is a real person.

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The first Newcastle @mathsarcade was a moderate success. Around 8 students took part, but all staff seem to have forgotten it was on.

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ShapeJS is an alright tool, now I've worked out how to use it. Here's my favourite shape, the Herschel enneahedron: gist.github.com/christianp/769…

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In reply to @Boxfresh

@Boxfresh hi, more than a fortnight since you said "next week" for new size 13 shoes. Are they any closer?

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December

In reply to @peterrowlett

@peterrowlett which day is your viva?

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Permutohedron! It's not an instruction, it's a polytope: en.wikipedia.org/wiki/Permutohe…

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I love race conditions.

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My next tweet will be a lie.

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Have started tinkering with @MathJax extensions. Stand back, this might work.

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In reply to @aoibhinn_ni_s

@aoibhinn_ni_s do you mean compared to girls in other countries, or compared to boys in Ireland?

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An outbreak of * to denote function application among the undergrads in online tests. e.g. `cos*(x)`, `ln*abs(x)`. Wonder who started it.

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In reply to @infrahumano

@infrahumano @ddmeyer it's just a few students in one assignment, so at the moment I assume they've copied off one person or worked together

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Least expected combination of words 2013 "@TweetsofCushing: Unicyling Darth Vader Santa Claus Plays Flaming Bagpipes youtube.com/watch?v=P-npMb…

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I just made @NclNumbas a bajillion times faster by adding a check for the degenerate case to a function. Doiiiii.

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In reply to @vickytnz

@vickytnz if they can be traded, maybe they wait for card issuer refusal to discourage fraudsters buying them with other people's cards

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Idea for a twitter bot: get GBP-Euro exchange rate every day, put it through inverse symbolic calculator, tweet when best fit uses <4 ops.

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In reply to @JanvierUK

@JanvierUK to give an easy way of converting between currencies (for values of 'easy' that apply to mathematicians)

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In reply to @christianp

.@JanvierUK for example, the current exchange rate of £1 = €1.20829 is more easily remembered as ζ(1,2)ᵀʰᵘᵉᴹᵒʳˢᵉ/(Lehmerᵀʰᵘᵉᴹᵒʳˢᵉ)

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In reply to @JanvierUK

@JanvierUK Zeta(1,2)^ThueMorse/(Lehmer^ThueMorse)

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this textbook for French students elucidates English pronunciation via the phonetic alphabet flickr.com/photos/taffeta… (i.e. not at all)

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Google Music has got very confused about what songs are in this christmas album. It's playing the right tracks, but labelling them wrong.

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So "The Power of Love" is now "Baby It's Cold Outside" by Tom Jones, and "A Spaceman Came Travelling" is now "Angels" by Robbie Williams

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In reply to @ebuie

@ebuie "Lift entrapment"? I can't think of any crimes a lift could encourage me to commit.

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I made this because apparently I need it: checkmyworking.com/misc/the-mathj…

1 favourite 0 retweets

Wrote this, not sure what to do with it: jsfiddle.net/4FJ2m/1/ Every example of a @MathJax extension I could think of was a bad idea.

0 favourites 1 retweet

Finalising the menu for my new fast-food chicken place ZFC, where there are so many options you have to use the axiom of choice to order.

0 favourites 1 retweet

Today on Google+ I asked a stupid question about notation and got some fascinating comments about de Rham cohomology plus.google.com/11130061692066…

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In reply to @pkrautz

@pkrautz go on...

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Wondered why my GP appointment was for an hour-long window, until I realised "ten to eleven" meant 10.50.

1 favourite 1 retweet

Can whoever's in charge of such things force sixth form colleges to advertise Prob(pass an A-Level you start) instead of pass rates?

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One way of gaming pass rate figures is to tell people who might not pass not to bother sitting the exam.

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In reply to @sxpmaths

@sxpmaths good: your assessors are more numerically literate than your prospective students!

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Particularly pleased with tonight's bananagrams. #supineyeti

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In reply to @pkrautz

@pkrautz send me an email. I'm away to your homeland for the weekend to visit the Weihnachtsmärkte, but next week I'll have some coding time

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In reply to @peterrowlett

@peterrowlett good luck!

0 favourites 1 retweet

King James Programming is pretty funny kingjamesprogramming.tumblr.com

1 favourite 0 retweets

In reply to @lyd_w

@lyd_w where?!

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In reply to @lyd_w

@lyd_w excellent! I will investigate

1 favourite 0 retweets

Berlin packing checklist. So excited!

0 favourites 1 retweet

In reply to @helenarney

@helenarney I sad too but no need grammar to forgetting

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Just arrived in Berlin, and I have eduroam Internet! I may be able to tweet more than expected

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In reply to @libraryncl

@nulibrs that's a very good book!

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In reply to @TweetsofCushing

.@TweetsofCushing no, you should accept that a calendar invented by the last vestige of the Roman Empire is not acceptable for timekeeping.

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In reply to @mountain_ghosts

@jcoglan I have a vague memory of a chrome extension which put a spectrum analyser on each tab header for exactly that purpose

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In reply to @evelynjlamb

@evelynjlamb Dr Lamb, I wish to decrease my body's genus. What do you recommend?

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Testify! MT @IanHopkinson_: Was surprised how few PhD students who code for their work use source control, let alone testing frameworks

0 favourites 2 retweets

In reply to @mountain_ghosts

@jcoglan that's especially bad, considering it has so few users to find bugs.

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The art by @Gelada looks particularly good in the morning light today.

1 favourite 1 retweet

Lunch today at Spanglish Tiendita was nice and tasty and cheap. And oh my, the ingredients they sell! facebook.com/SpaLatiendita?…

0 favourites 1 retweet

In reply to @Bishnavitch

@Bishnavitch @Electrokittie @HeyCwiss @AdamJackzon god no. Didn't watch the first one.

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In reply to @Bishnavitch

@Bishnavitch @AdamJackzon @Electrokittie @HeyCwiss you know empire reviews hold no sway with me

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In reply to @lyd_w

@lyd_w a burrito and an arepa. Want to go back and try the paella and empanadas

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Going early to the doctor's for my appointment because their waiting room is warmer than my house.

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This dude's head is like a D6 of groady tattoos

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In reply to @gingerbeardman

@gingerbeardman were you in Berlin last weekend? So was I!

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Just found out that in Moodle you can drop a SCORM zip file onto a course section to upload it in one go. So useful!

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Massive anticlimax as we have a full office for the first time in well over a year.

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Less happy Moodle news: debugging the SCORM module makes me want to give up technology and join a monastery

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Data model retrieval and storage implemented entirely through eval() and string-replacement. #nononononono

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In reply to @DrSaraSantos

@DrSaraSantos @bostoncyberarts ooh, I'm a big Balint fan. Pity I'm not in Boston!

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Have a blast from CP's past: Santa's Freelance Adventure, a game I made. somethingorotherwhatever.com/?thing=crazysa…

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In reply to @Bishnavitch

@Bishnavitch @AdamJackzon @Electrokittie sorry, I'm doing family things tomorrow, it turns out

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In reply to @Dr_Lucie

@Dr_Lucie that is such a sci-fi sentence.

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In reply to @GhostMutt

@GhostMutt jsfiddle.net/FFGmw/ using the 'selector' parameter for .on (api.jquery.com/on/#on-events-…)

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A genius tragedy today: tragedyseries.tumblr.com/post/699082802…

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In reply to @ColinTheMathmo

@ColinTheMathmo mezzalunas are great!

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In reply to @standupmaths

@standupmaths while my GF was decrying apostrophe heretics, I told her about #snowfake. She didn't see a problem. Considering my options.

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Which is mis-spotted more: the golden ratio, or a power law? "Simple mathematical formula describes human struggles" eurekalert.org/pub_releases/2…

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Correspondent on BBC News having trouble hearing anchor's questions: maybe do your report somewhere quieter than in front of a protest?

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If there's a gangsta way of wearing one's kippa, this guy has it

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In reply to @mountain_ghosts

@jcoglan Christ. PHP is like an exquisite corpse programming language. Hacks to fix hacks to fix hacks to fix hacks to fix

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I can just about understand why some people think it's worthwhile to go to certain shops on boxing day. But Ryman?!

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There's no Newcastle @MathsJam this month because we are purists and the second-last Tuesday is Christmas Eve.

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In reply to @Bishnavitch

@Bishnavitch that actually sounds delicious

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Everyone is telling me to fatten up. Christmas is just over a week away. Am I a goose?

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In reply to @evelynjlamb

@evelynjlamb Are you aware of aperiodical.com/2012/05/torus/ ?

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In reply to @elinoroberts

@elinoroberts mine's leaking again, if that's any consolation

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In reply to @icecolbeveridge

@icecolbeveridge Congratulations! Going to be an awkward birthday for presents later on, though.

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In reply to @stecks

@stecks @standupmaths and I had to get up early because, even though it's my day off, Helen had to go to work so kicked me out :(

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In reply to @peterrowlett

@peterrowlett why yes I am, Peter, thanks for asking!

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In reply to @plusmathsorg

@plusmathsorg your readers might also enjoy pages from my 1811 arithmetic textbook aperiodical.com/2013/05/all-sq… (still Georgian, just!)

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This kid is refusing to speak with real words, despite his nana's demands and threats. Power to him. #habeedareeman

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GP surgery's touchscreen check-in thing is inaccessible to the blind; ping to tell you to look at the screen inaccessible to the deaf.

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"KEEP CALM AND LOOK AFTER YOURSELF", says NHS leaflet. "I don't want to live in a world with KEEP CALM...", say I.

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In reply to @Bishnavitch

@Bishnavitch shave a St George's cross into it

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I can now play the first four bars of Little Donkey on the piano. #basicallythebest

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In reply to @lyd_w

@lyd_w you've been a hipster for five minutes, and you've already got a phone number nobody else has heard of yet.

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In reply to @standupmaths

@standupmaths looks like some number of intersecting octahedra

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In reply to @FOTSN

@FOTSN your link to buy tickets for Durham is broken

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In reply to @FOTSN

@FOTSN I imagine it changes each time they stoke the fire powering their computer.

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Have some animated Victorian Christmas GIFs, courtesy of the lovely Public Domain Review publicdomainreview.org/2013/12/22/ste…

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Need to think of a way of turning my t-shirts drawer into a FIFO stack.

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In reply to @jolyonjenkins

@jolyonjenkins thanks! Neither do I - I was practising it at mathsjam and couldn't do it anywhere near quickly enough

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In reply to @JanvierUK

@JanvierUK hm yes quite en.m.wikipedia.org/wiki/Lex_inius…

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I'm parked outside Washington's grimmest row of retail units. I can get a tattoo, borrow at usurious rates, or buy "hot food" (unspecified)

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In reply to @robotmaths

@AdamCreen not even the one you're thinking of: this was in Sulgrave village. @TweetsofCushing will appreciate your Peterlee review :)

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Who on the Holby City production team decided you can just add snow in post instead of at least making fake stuff?

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Phwoar, look at the maths in that! Good Christmas present from the papa Perfect.

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That's surprisingly easy!

1 favourite 2 retweets

Pretty pleased with tonight's bananagrams. "Yon man won voodoo rejoinder; opine at ease."

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In reply to @mutedestro

@mutedestro it's a page from "Towers of Hanoi - Myths and Maths"

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Forget π=3; apparently my mum's boiler thinks e=5.

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My answer to basically all of my Nana's questions re clothes or going out: "You can do whatever you like, you're 82 years old."

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"Can I go to church dressed like this?"; "Can I bring this coffee into Homebase?"; etc. etc.

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First tweet from my Raspberry Pi. I think I should really keep it in the command line...

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In reply to @standupmaths

@standupmaths if you get a few of these, could it make an aperiodical post?

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In reply to @peterrowlett

@peterrowlett @ProfKinyon this: youtube.com/watch?v=f3ek85…

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What goes up must come down: Isaac Newton's hallowed name used for a shopping centre in Grantham. themathematicaltourist.wordpress.com/2013/12/09/a-s…

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In reply to @monsoon0

@monsoon0 I haven't, but Carlos has: themathematicaltourist.wordpress.com/2013/08/15/sir…

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My Pi needed a case, so I used materials on hand post-Christmas

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In reply to @hughhunt

@hughhunt @snapey1979 @MathsJam I want to maximise (tan(θ)-1)/(tan(θ)+(tan(θ))^2). Is there a way to do that without calculus?

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End of year cleaning time. Why did I feel the need to keep this many holes?

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In reply to @peterrowlett

@peterrowlett @stecks looking at it now, just got a phonecall

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2014

January

In reply to @Dabbawal

@Dabbawal is the jesmond restaurant wheelchair accessible?

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I have 2 bags of xbox games and dvds
Where's the best place in Newcastle to sell them? I'd rather not support Grainger Games' sketchy owners

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In reply to @manutdjax

@manutdjax I'm not feeling that charitable. Three big bags of other stuff just went to the charity shop

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In reply to @Dabbawal

@Dabbawal thanks. Turns out my dad called to book anyway.

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In reply to @vickytnz

@vickytnz ooh, you got one. Where from?

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In reply to @vickytnz

@vickytnz cool. My gf wants to replace her laptop with a tablet, but a chromebook could also work

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2014: The Year I Finally Have Enough Micro-USB Cables And Charger Plugs

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Dude on the metro stone cold writing in a textbook in pen. Good luck revising, muchacho!

1 favourite 0 retweets

Because I love showing off, I've uploaded pictures of my best bananagrams boards to Flickr. flickr.com/photos/christi…

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In reply to @JanvierUK

@JanvierUK Beenoch, Seenoch, Deenoch...

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In reply to @Quendus

@Quendus @haggismaths but odd that it gets even "fit a quadratic through (1,1)" wrong

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Scorpion Dagger is hilarious scorpiondagger.tumblr.com

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In reply to @jamesgrime

@jamesgrime @peterrowlett @Wolfram_Alpha there was 1 silly comment before they realised we knew perfectly well what's going on, since edited

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In reply to @jamesgrime

@jamesgrime @peterrowlett my guess is, fit assumes the points aren't on the line and interpolate uses something like Chebyshev interpolation

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In reply to @christianp

@jamesgrime @peterrowlett ... and because "quadratic through {X}" is most often used to fit regression models, it uses the "fit" algorithm

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Wow, I don't miss downloading packages from sourceforge at all.

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In reply to @standupmaths

@standupmaths so a baby should live its first day as if it's its entire life?

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So @TweetsofCushing is paying $50 to courier a cheque for $30 to UCSD because their graduate office only takes cash or cheques.

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Which, for an office which has to deal with international students quite often, seems peculiar. Lucky his supervisor has a US bank account!

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(Yes, I've suggested paying someone at UCSD $35 to walk over to the office with $30 cash)

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A slow day at work, so I've set up a fabfile to automate @NclNumbas server tasks. It's pretty nice! fabfile.org

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In reply to @miclugo

@madcaptenor we did have an abc channel for a short while a few years ago. It played endless terrible sitcom repeats.

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A nice MC Escher-inspired wall in Madrid found by Carlos Dorce themathematicaltourist.wordpress.com/2014/01/08/esc…

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In reply to @evelynjlamb

@evelynjlamb challenge: find the page with the @aperiodical logo

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"brown streak on public byway" - Dog. (mixed media, 2014) #contemporarytynemouthartscene

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Have an obnoxiously large and slow implementation of a programming language I can't name. (and a Fibonnaci generator) christianp.github.io/bfbf/?+P+pbbPP…

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In reply to @peterrowlett

@peterrowlett @johndavidread @outofthenorm2 @aperiodical I'm planning on consulting a Russian or two first

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In reply to @standupmaths

@standupmaths Well done for making your MathsJam conference slides even more awkward than mine. OK if we just offer a zip file?

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In reply to @christianp

@standupmaths ... actually, never mind. I assumed the TIFFs were images to go in the slides, but they ARE the slides! #inception

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In reply to @Moon0nASpoon

@Moon0nASpoon hah! Where's that?

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In reply to @standupmaths

@standupmaths turns out Katie already had.

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This morning: Regex Golf (regex.alf.nu). Not sure why I got such a high score for number 10.

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Look on my bananas, ye mighty, and despair! flickr.com/photos/christi…

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In reply to @bengoldacre

@bengoldacre is this just people in work, or all people?

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In reply to @JanvierUK

@JanvierUK thanks! Did you get my text on your birthday?

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Today, my birthday, my age is one less than the sum of the components of the DD/MM/YY date. Does anyone achieve equality on theirs?

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Today's dress code MT @ChirurgeonsAppr: this flower is aptly named "Naked Hanging Men."

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Cmder is a nice cmd.exe replacement for windows. bliker.github.io/cmder/

1 favourite 1 retweet

So far I'm the closest to being DD+M+YY years old on my birthday. There must be someone out there!

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In reply to @pelagikat

@hornmaths doiii

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Even on my birthday, I can't find a new integer sequence. I'd've been offended if this wasn't already in, though: oeis.org/A131383

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In reply to @DoctorLewney

@DoctorLewney where did 46 come from?

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In reply to @DoctorLewney

@DoctorLewney no, I'm 28 today, which is 14/1/14. 14+1+14 = 29, so I'm one off.

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Another @Christiansmas fact: this year, for the last time ever, I'm living up to my name since my age is a perfect number.

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Oh, BOO. I'm never going to find a new sequence, am I? oeis.org/A000348 This one was the second article ever in J. Int. Sequences!

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This URL describes itself in French …tteadressecomportecinquantesignes.com

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Probably not my last @Christiansmas fact: (28!+1)/(28+1) has 28+1 digits and is prime.

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!!! The main character from GTAV is modelled on Bill Dana as Jose Jimenez! Creepy eyes and everything! youtu.be/d85gkOXeXG4?t=…

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In reply to @libraryncl

@nulibrs can I suggest sprinklers as a way of dispersing the cloud of smokers stood outside the library's front door?

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In reply to @libraryncl

@nulibrs thanks!

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In reply to @Bishnavitch

@Bishnavitch @aperfect some of the mathematicians are doing it. Your mission: DEFEAT THEM

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Seen this? Someone has made an ox blocks-ish game for android: aperiodical.com/2013/05/ox-blo…

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In reply to @peterrowlett

@peterrowlett I think emails are broken for everyone. @aperfect did say he'd look at it as a special birthday treat, though...

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Hi there! Hal the friendly peartato here. (discovered by my lovely gal)

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In reply to @Nonam212

@Nonam212 @Tony_Mann @errordiary here in The Enlightened North, our key cards also work as Metro passes. I pity your rude southern ways

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Whoah! A croissant-shaped grape!

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In reply to @drvinceknight

@drvinceknight tl;dr - the huge pay packets? The adoration of masses, young and old?

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This construction gives xy/(x+y). Does it have a name? Is it in Euclid?

1 favourite 0 retweets

Did you know that geometry used to be represented by a woman with a castle on her head? wellcomeimages.org/indexplus/resu…

1 favourite 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth I think a coincidence - @TweetsofCushing introduced it with lengths 4 and 6

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Polygonal fruit news: five-sided oranges in Japan! designyoutrust.com/in-the-nature/… Can anyone find a primary source that isn't the Daily Mail?

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This integer sequence won an award at #jmm14 and is also the shortest entry in the OEIS (I think) oeis.org/A235383

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In reply to @ebuie

@ebuie no - the comments say Carmichael's theorem implies 8 and 144 are the only possible products

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OH @TweetsofCushing: "Wow, it's independent of how big 1 is."

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Newcastle @MathsJam is in a couple of hours. Charles Grey pub, 7pm, bring your thinkin' bits.

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In reply to @premierian

@encratica very nice!

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Hey guys, @TweetsofCushing is so inbred his family tree is nonplanar.

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In reply to @outofthenorm2

@outofthenorm2 wow, you've got a proper board! Did you make it?

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In reply to @jjaron

@jjaron @NS_headlines that's new to me, so the answer could be 'yes'

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In reply to @mountain_ghosts

@jcoglan you might want to talk to Andrew Stacey. He's working on a set of tools that do *good* LaTeX->internet github.com/loopspace/late…

1 favourite 0 retweets

Teeheehee! Slurpy yolkfish! youtube.com/watch?v=mRUDZh…

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Picture of the world's blandest hipster, above the slogan "Career with an edge." - Northumbria Uni advert. #sillypoly

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In reply to @outofthenorm2

@outofthenorm2 I don't. I think we used gamecabinet.com/rules/Rithmoma… when we played. Maybe a nicely-presented set of rules would be a fun project?

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In reply to @icecolbeveridge

@icecolbeveridge Ahh, we were going to do one of these for @aperiodical!

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knockout.js observables look a lot more like magic when you wrap them in getters and setters: jsfiddle.net/Y855G/embedded…

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Finally, I have a sequence in the OEIS! oeis.org/A236322 - number of (potentially overlapping) occurrences of n in n^n. Big day for me

6 favourites 3 retweets

In reply to @evelynjlamb

@evelynjlamb yeah, but it doesn't matter until n=99. I have a non-overlapping one proposed at oeis.org/draft/A236314

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In reply to @evelynjlamb

@evelynjlamb The first three differences are at n=99,101,535

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In reply to @evelynjlamb

@evelynjlamb I tagged the sequence 'easy' at first because the algorithm is simple to write, but apparently computation takes time? #whoknew

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Continued adventures in not finding a new integer sequence: oeis.org/A180039

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I could tell myself I'm trying too hard, but the fact other people have put these in implies I'm not. oeis.org/A195835 #oeiswhacking

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In reply to @icecolbeveridge

@icecolbeveridge I've moderated my position on that after my summer students pointed out how often \left( gets the size wrong

0 favourites 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo train joined a gang at its home station, but the following section of track is on the turf of a rival train gang?

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In reply to @icecolbeveridge

@icecolbeveridge can't remember specifics, but sometimes superscripts don't need as big a bracket round them as \left( wants.

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In reply to @icecolbeveridge

@icecolbeveridge i.e., technically the box is that big, but visually the bigger bracket seems worse

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In reply to @icecolbeveridge

@icecolbeveridge similarly, you might want to force a bigger bracket if you've got a few in a row and only one with small contents

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Good news, everyone! The first player wins Pentago: perfect-pentago.net/details.html#i…

1 favourite 0 retweets

I've got a new PC at work. It's called Tynemouth!

1 favourite 0 retweets

New keywords on the OEIS: "look" and "hear" mark sequences with good graphs or worth listening to, respectively. e.g. oeis.org/A007318

1 favourite 0 retweets

Bought some superb sausages from @Geordiebanger at Tynemouth market yesterday. They make a seriously nice breakfast!

2 favourites 1 retweet

In reply to @Lucy_Worsley

@Lucy_Worsley If only his poyſon wasn't quite so ſtrong and violent!

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OEIS duck well and truly broken. I now have three sequences. The third one is particularly nice :) oeis.org/A236510

1 favourite 1 retweet

In reply to @ben_nuttall

@ben_nuttall @Raspberry_Pi jeeze, I know they're cheap, but using them as business cards is quite decadent

2 favourites 1 retweet

In reply to @noneatnamesleft

@noneatnamesleft I think it's seaside towns whose names have fewer than 11 characters, or something like that

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Use it for good, not for evil: github.com/christianp/oei…

0 favourites 1 retweet

You can't resize the Developer Tools in IE11 while the javascript debugger is paused. Good decoupling, guys!

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Hah, Newcastle Uni (or, the bit of the network I'm on) has been blocked from the arXiv again.

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Today: @TweetsofCushing is struggling to do compass constructions on the blackboard

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In reply to @stecks

@stecks this was prompted by @TweetsofCushing reminding me I still haven't bought one

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In reply to @GreyAlien

@GreyAlien my brother works for them!

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In reply to @helenarney

@helenarney No more axolotls! abcnews.go.com/Technology/wir… :(

1 favourite 0 retweets

In reply to @CR_UK

@CR_UK one of your chuggers in Newcastle just wished cancer on my friend who walked past him.

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Such dedication RT @TweetsofCushing: Live blog post(I havn't bothered finishing it before publishing so the maths is still going)

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There's a new series of Warhorses of Letters and I missed the first episode! Pooooooo bbc.co.uk/programmes/b03…

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I've had to use vegetable oil instead of groundnut oil for the past week because it has a higher melting point. #coldworldproblems

1 favourite 0 retweets

In reply to @christianp

@christianp ... I of course mean lower

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Winter is basically the worst time to decide you don't need a bag of ice cubes any more

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Ooh, unicodeit.net has had an upgrade! unicodeit.net Exactly the change I thought of adding myself this morning

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett what is your itinerary next Wednesday? Want to meet up somewhere before going to the do?

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February

Valentimes tables! RT @aperiodical: Puzzlebomb - February 2014 aperiodical.com/?p=11461

1 favourite 1 retweet

I have bought the sourest satsumas. Bonanza.

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If you peel an orange from pole to pole you get an Euler spiral. What do you get if you peel a doughnut?

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In reply to @ajoy_allen

@ajoy_allen if you do it the natural way, yes, and it flattens to a straight line. But what if you do the other way?

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In reply to @ajoy_allen

@ajoy_allen sounds about right. BTW I'm referring to this paper: arxiv.org/abs/1202.3033. They flatten the peel out but only consider oranges

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I'm now a developer-tools-docked-to-the-side man. It makes so much sense, I can see that now! Basically, this comic: achewood.com/index.php?date…

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#wifioutage2014 #neverforget RT @NU_ITservice: #nuitservicemessage Wireless network is now back to normal

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In reply to @plusmathsorg

@plusmathsorg it's like twenty questions for ℕ except you don't mind if they ask more than twenty questions, as long as they eventually stop

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I'm in London tomorrow with nothing to do until 3pm. Is anyone around? @standupmaths?

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I will never understand people who stand up ten minutes early to get off a train at the stop where it terminates.

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All this shuffling! I don't know how Londoners put up with it. I want to STRIDE!

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Ancient man just let loose the only expletive older than he is. He missed a train.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @DanielCove1 depends how good your audience's memory is

0 favourites 0 retweets

I was about to look at my phone to see what time it was and then I realised I'm at the Greenwich observatory.

3 favourites 3 retweets

In reply to @vickytnz

@vickytnz there's a travelex concession in the departures lounge, I think it has an ATM

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Churchill, Cromwell, Parker. #humblebrag

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Unusual: @standupmaths has just demonstrated that the corridors of power are non-Euclidean

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Science progresses! Wolfram Alpha has fixed the "fit a quadratic" oddity found by @TweetsofCushing (chronicled at aperiodical.com/2014/01/a-morn… )

2 favourites 3 retweets

In reply to @peterrowlett

@peterrowlett @TweetsofCushing Hm yes indeed quite

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In reply to @lyd_w

@lyd_w haha. Having fun?

0 favourites 0 retweets

In reply to @gingerbeardman

@gingerbeardman I wish they'd make a modern version of rallisport challenge. Best rally game by far

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I'm having the worst bananagrams game of my life. So many vowels!

0 favourites 1 retweet

In reply to @Bananagrams_uk

@Bananagrams_uk I may or may not have a problem: flickr.com/photos/christi…

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In reply to @Bananagrams_uk

@Bananagrams_uk you know the 2012 edition is cheaper on Amazon?

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Proposal: all trousers made available for sale must declare a "phantom vibration" factor.

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths that's odd. So they're not adding that much value, it turns out?

0 favourites 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft @PuzzledPint I'm pretty terrible at puzzles. I'd come along if you set one up, but not sure if I'd keep going

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In reply to @noneatnamesleft

@noneatnamesleft hm, @poveryant might be

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In reply to @Andrew_Taylor

@Andrew_Taylor is this because NaN is never equal to anything, or because +infty != -infty?

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In reply to @robinhouston

@robinhouston @Andrew_Taylor see p14 of "How Java's floating-point hurts everyone everywhere" cs.berkeley.edu/~wkahan/JAVAhu…

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In reply to @Andrew_Taylor

@Andrew_Taylor @robinhouston wherein CP tries to get away with claiming `false` represents zero.

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In reply to @robinhouston

@robinhouston @Andrew_Taylor exactly. I've got ℵ₀ reasons it's a bad idea

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In reply to @christianp

@robinhouston @Andrew_Taylor by which I mean ℵ₁

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In reply to @robinhouston

@robinhouston let's say I assume it with a probability p ∈ [0,1]

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Shift+Arrows to select text doesn't work in Word form boxes. Good job I wasn't planning on writing anything on this grant application

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Some I'll-informed bird is trying out its repertoire of car alarm impressions. Cars must be like sexy sirens to it.

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In reply to @tim_hunt

@tim_hunt yeah, but I'd sort of like it to just work properly to start with

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animalsearches.tumblr.com

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Coke from the uni vending machine is now £1.40. Forget fair pay, *this* is worth going on strike about.

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such OCR
so added value
wow
link.springer.com/article/10.100…

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uh oh. New collaborator worse at spotting double-spaces in text than old collaborator. Spotting and fixing them makes me feel like Rain Man

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and OF COURSE I did a double-space in that tweet. OF COURSE.

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In reply to @DanielColquitt

@DanielColquitt filling in a restricted-editing Word form. It's literally worse than using nano.

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Triple-space! C-C-C-C-COMBO BREAKER!

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In reply to @standupmaths

@standupmaths I'd always assumed it was "more dogs!" simpsonsscreenshots.com/2012/08/15/mor…

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In reply to @GreyAlien

@GreyAlien was it raining while you were out?

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In reply to @samholloway

@samholloway we'll both be at @FOTSN tomorrow night. Are you hanging around for drinks after?

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In reply to @evelynjlamb

@evelynjlamb *mind blown*

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In reply to @samholloway

@samholloway @FOTSN my thoughts exactly, though I've heard the Head of Steam is good.

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In reply to @FOTSN

@FOTSN fun story: just found out work owes me many many pounds, so I'm paying for my tickets tomorrow

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I've never seen a shape of genus 2 in Simon Tatham's galaxies puzzle before

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In reply to @helenarney

@helenarney @elinoroberts @standupmaths hello yes I will take part please

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In reply to @helenarney

@helenarney @elinoroberts @standupmaths significantly less enticing, but I'm game

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My favourite site that isn't @aperiodical, the OEIS, has got a new banner. Now to update the rest of it... oeis.org

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I've got an idea: send me a new article for my Interesting Esoterica collection, and we chat about it for a hangout/podcast. Any takers?

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In reply to @standupmaths

@standupmaths if you fancy somewhere warm, Leonard's cafe down by the river is nice

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In reply to @standupmaths

@standupmaths you have of course admired the bajillion different column styles in the Cathedral, including Frosterley (fossils) marble?

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In reply to @FOTSN

@FOTSN and I'm going to have a terrible time without my specs

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In reply to @FOTSN

@FOTSN I bought a trophy for an integer sequence I thought was really good. I ran a competition to find the best one

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In reply to @samholloway

@samholloway where are you? We're stood a discrete distance from the merch table

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In reply to @KSCMaths

@KSCMaths gamma(i+1) is, so... depends on how far you're willing to stretch the definition

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In reply to @samholloway

@samholloway it was 11:15 on a school night, and the nerds still needed to pack up. So we didn't attempt the hostelry problem.

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In reply to @samholloway

@samholloway I assume the paucity of good pubs in Durham is linked to the wine expenditures of the colleges

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Need to 3d print something? Try this Herschel enneahedron designed by @owens_bill: thingiverse.com/thing:248603

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In reply to @owens_bill

@owens_bill a "when I have unlimited time" project is to print enneahedra of varying sizes to find the one that works as a fair 9-sided die

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In reply to @samholloway

@samholloway Someone did FOIA requests for Cambridge colleges recently: telegraph.co.uk/education/univ…

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Buying comfy chairs for my new knitting therapy anger management centre, Cross Stitch.

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In reply to @owens_bill

@owens_bill nope, for non-platonic solids there's no analytical way of working it out. Someone told me even the rolling surface matters!

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If you've just woken up and you're catching up on Twitter, I just want to let you know what a nice morning you've missed

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In reply to @Thalesdisciple

@Thalesdisciple do you mean this kind of thing? staff.ncl.ac.uk/christian.perf…

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In reply to @helenarney

@helenarney This is a Helen-to-Helen thank you message. My Helen really likes your CD. She says she learnt many science facts!

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If only it wasn't such a massive hassle to order things from the US. Otter with a Rubik's cube t-shirt: parklifestore.com/Merchant2/merc…

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It's @MathsJam night tonight. 7pm, in a pub near you. Newcastle's is in the Charles Grey at Monument. mathsjam.com/index.php?cont…

1 favourite 2 retweets

Here's an idea: give a trophy to whoever ends up paying the most national insurance each year.

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In reply to @icecolbeveridge

@icecolbeveridge @MathsJam rumbled...

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In reply to @SparksMaths

@SparksMaths @icecolbeveridge @MathsJam it's worse for Bombay, with the largest potential constituency of ALL OF ASIA

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In reply to @SparksMaths

@SparksMaths @icecolbeveridge @MathsJam *crow flights on a projection of the globe

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In reply to @debzpi

@debzpi @MathsJam @standupmaths there are a few Durham people at the Newcastle jam. Is it too far for you to go?

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In reply to @debzpi

@debzpi somebody asked about starting a Stockton one a while ago, according to my map. Was it @noneatnamesleft?

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I have spent the post-work, pre-@MathsJam hour learning to juggle. Almost there!

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In reply to @TweetsofCushing

@TweetsofCushing @MathsJam a comment says a(n)/n <= 6

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In reply to @My_Metro

@My_Metro why are the "automatic door close" warning signs on the bit of the door that's hidden when they're open?

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Mega high res photos of Babbage's difference engine. I feel bad ogling these at work. xrez.com/case-studies/e…

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In reply to @physicsdavid

@physicsdavid @evelynjlamb I noticed this a while ago: mathsinthecity.com/sites/fractal-…

1 favourite 2 retweets

In reply to @standupmaths

@standupmaths get your own favourite number!

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In reply to @davidwees

@davidwees @standupmaths all I'm asking for is injectivity...

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When I need to think of a few random strings, I always pick words starting with B. I wonder why.

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I wrote this capitalisation function: `return str.replace(/[a-z]/,function(c){return c.toUpperCase()});` God I'm bad at coding.

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In reply to @wiebow

@wiebow not if the word is already capitalised

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In reply to @aperfect

@aperfect my walking boots have finally died :(

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When you need to throw any error to test error-reporting, the line `throw(poo);` works magnificently.

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In reply to @lyd_w

@lyd_w have they finally got rid of all the blackamores?

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what's Barry short for? Barold? Benry?

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In reply to @icecolbeveridge

@icecolbeveridge really?

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Twitter, I've bored everyone else to death, so now I'm telling you how comfy my new shoes are. SO COMFY.

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#bootchat RT @ajk_44: @christianp I also have comfy new shoes. But technically they're boots. But they're very comfy!

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In reply to @LearningMaths

@LearningMaths @ajk_44 if we had a Victorian gentleman handy, we could mark the threshold at the point when he becomes scandalised

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In reply to @gingerbeardman

@gingerbeardman is that a Trabi?

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Just remembered I did this a couple of weeks ago animalsearches.tumblr.com

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Is anyone able to use JSDoc and not have a complete freakout? I don't fancy adding a bajillion tags to tell it how prototypes work

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This bottle of coke smells strongly of almonds. I haven't died yet, so it's not cyanide. How unusual!

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In reply to @gingerbeardman

@gingerbeardman so copying the same thing the Trabant was copying?

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In reply to @gingerbeardman

@gingerbeardman yeah, but the Trabant is heavily inspired by the Fiat cars the Padmini licensed.

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Fermi problem: how many people in the world have had their photo taken by a google street view car?

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In reply to @Upp_Maths

@UppMaths @TesmathS @nrich @aperiodical nobody knows! If there are infinitely many Mersenne primes, then yes en.wikipedia.org/wiki/Lenstra%E…

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In reply to @HilariousCow

@HilariousCow yes! That's exactly it! So apt.

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In reply to @aPaulTaylor

@aPaulTaylor seems very high - how often do street view cars pass each place?

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In reply to @aPaulTaylor

@aPaulTaylor let's say no.

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ok, now I sort of know how to work jsdoc, it's quite calming to sit down and document all the little things

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asciitable.com, old friend, I haven't used you in a while

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working from home today would've been a good idea if my internet connection hadn't decided to do a go-slow

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Maybe my internet slows down every day but I'm not usually here to see it...

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In reply to @mountain_ghosts

@jcoglan I wrote one of those a few years ago. It's a terrible idea.

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In reply to @elinoroberts

@elinoroberts that dvd is hilarious! I bought it for a flatmate who did sex ed a few years ago

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In reply to @haggismaths

@haggismaths raid maths-gear.co.uk? A couple of Rubik's cubes never go amiss, either

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Science progresses! (Ruler dipped in liquid nitrogen) RT @hughhunt: Done! @WarmlyStrange @karenshancock

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Just found donateapc.org.uk. What a nice idea!

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In reply to @stecks

@stecks har har

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In reply to @ColinTheMathmo

@ColinTheMathmo @LargeCardinal hooray, it doesn't clash with bonfire night this year!

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In reply to @evelynjlamb

@evelynjlamb it's the closest you can get to cumulonumbers ( pinterest.com/katiesteckles/…) if you need to include a real person

1 favourite 1 retweet

March

Two hours into my first day managing the grades for the computer-based assessments, I've written scripts to do it all automatically.

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In reply to @sxpmaths

@sxpmaths I don't want this job. I'm covering the guy who just quit until his replacement is hired

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In reply to @mathemaniac

@mathemaniac cor! That's a much better cover than my copy

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Should my wifi receiver's antenna have to be perpendicular to the router's antenna to get best signal? That seems wrong.

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In reply to @haggismaths

@haggismaths ooh, what are you doing there?

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In reply to @ben_nuttall

@ben_nuttall yeah, it's very slow

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Well done the Indy, hiding their nonsense formula at the end of this otherwise informative "perfect pancake" article independent.co.uk/life-style/foo…

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In reply to @treasa

@treasa at least the dimensions work out this time. It seems to start from the idea that lever length should be proportional to flip height

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Georg Cantor in pancake form to celebrate his birthday! It's all my favourite things in one image! saipancakes.blogspot.co.uk/2014/03/happy-…

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In reply to @Gelada

@Gelada the maths on your site shows up as really small for me. I suppose we can only blame wordpress.com

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San Satiro church in Milan has a pretty rad trompe l'oeil wall: mateturismo.wordpress.com/2014/02/24/el-…

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There are some bad dudes skating outside my building. But are they bad enough to save the President?

1 favourite 0 retweets

In reply to @Gelada

@Gelada sorry, I've just left work so can't check

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In reply to @robinhouston

@robinhouston that reminds me that I had an idea for another method of making those from a source image...

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In reply to @robinhouston

@robinhouston start with all RGB tuples in a bag. Randomly pick pixels from the source image, and pick the closest RGB still in the bag

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In reply to @robinhouston

@robinhouston ehh, Python can shuffle 2^24 in a couple of seconds

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In reply to @robinhouston

@robinhouston oh yes, I was thinking of shuffling the pixels

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In reply to @standupmaths

@standupmaths apart from waste the rest of your existence at the infinity bridge?

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In reply to @robinhouston

.@robinhouston Here's an image where each component takes values 0-48

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More allrgb progress: this picture has every 6-bit RGB triple in it exactly once

1 favourite 2 retweets

Heinz carrot and coriander soup tastes of neither carrot nor coriander. Blech.

1 favourite 0 retweets

How have I only just found the-athenaeum.org ? I will never lack source material for cards ever again

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I think I've found the happiest cherub in all of art the-athenaeum.org/art/full.php?I…

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A mix between Phobia and Cannon Fodder, you say? store.steampowered.com/app/204530

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In reply to @noneatnamesleft

@noneatnamesleft as usual, the North East is a desert

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I forgot it takes a full hour to drive out of Tynemouth on a Sunday afternoon.

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YES, this is 100% the kind of thing I exist for: chicken telenovela! lindseyolivares.blogspot.co.uk/2014/02/super-…

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Here in the Anti-Upsilon League, we believe in strength through sharing. By removing Y, your problem becomes our problem.

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In reply to @stecks

@stecks I wish I was eating burritos. Instead I'm having sad dinner in Birmingham Uni's conference centre restaurant

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In reply to @stecks

@stecks nope. It's a meeting of a working group that doesn't officially exist, about a subject anyone would struggle to find interesting

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This meeting has reached the "let's tag everything... but what tags do we use?" stage. #jeeze

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Dude on the train sounds like a Hardthrasher from Bleak Expectations. Are we about to drive into a wall of cheese?

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In reply to @Thalesdisciple

@Thalesdisciple @divbyzero we use Gyre Pagella (I think) on aperiodical.com

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @reflectivemaths I hope the #mathspolice isn't assuming there exists a group of wingdings. It's more likely to be a monoid

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I really don't like waking up at 3am with something in my eye.

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In reply to @mountain_ghosts

@jcoglan are startup names converging on band names?

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Advert for sitcom about impoverished north still displayed on metro a year later because north too impoverished to buy new ads. #faithful

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In reply to @peterrowlett

@peterrowlett ooh... a large part of me is struggling not to change that to 'practise'.

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Accidentally associated .bat files with vim in windows 8. How long it took to be able to execute them again will shock you.

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It's Newcastle @MathsJam tomorrow. 7pm, Charles Grey pub, look for the Rubik’s cube.

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35 is interesting because it's the number of interesting numbers that @InterestingNums is running behind @wilderlab.

1 favourite 0 retweets

So far I've been pretty good at just documenting my old code instead of pausing to refactor it, but this file is testing me.

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In reply to @standupmaths

@standupmaths looks like there's an opportunity for you to shake up business management with a "not every model needs to be linear" book

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In reply to @benjamintormey

@BenTormey ahh, cruel! I thought that might be a place in Newcastle until I clicked through. Boo.

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In reply to @FionaKateM

@FionaKateM @MathsJam no, but your closest Jam is in Falmouth. Can I add your name to our map of potential Jams in case anyone else asks?

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In reply to @benjamintormey

@BenTormey jolly good!

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In reply to @stecks

@stecks which other ones are on hiatus? Did you ask me to fix this last time? Tiny bells are ringing

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I've finally got round to making the input box on checkmyworking.com/misc/makebigma… a textarea, so multiline TeX isn't migraine-inducing

1 favourite 0 retweets

@katemath it annoys me that my interns working on outreach last year were both female, while interns working on "serious" projects were male

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@katemath hm, I've never thought about whether *my* not doing research maths says anything.

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@katemath that sort of applies to me, but more so if you replace "good" with "motivated"

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In reply to @MathsJam

@MathsJam get you and your futuristic timezone.

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A pint of coke in the Charles Grey is now £2.80. I think this might be the limit of my toleration.

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In reply to @MathsJam

@MathsJam I think EDI wanted a process that always finishes in finite time

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In reply to @MathsJam

@MathsJam do I mean bounded time then?

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Either several girls at the end of the carriage have the same laugh, or one girl never needs to breathe.

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The long diagonal in a dodecagon is only 3.5% longer than the distance between parallel edges. It's round enough.

5 favourites 13 retweets

"banknotes would be made out of plastic rather than cotton from 2016" - the BoE has a time machine and they use it to fetch cotton?!

1 favourite 0 retweets

If the long diagonal in the new pound coin is the same length as the current coin's diameter, the difference from the short width is 0.7mm

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Chrome is doing the fun thing where it crashes when I press space in some input fields

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In reply to @BrumRand

@BrumRand @tweetsauce According to thisismoney.co.uk/money/bills/ar…, 3d in 1971 is equivalent to 15p now.

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In reply to @BrumRand

@BrumRand @tweetsauce threepence became 1.25p (en.wikipedia.org/wiki/Decimal_D…), and then inflation happened

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Dodecagonal threepence coins were sent for testing in vending machines, so they must have worked: wiki.answers.com/Q/How_rare_is_…

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In reply to @BrumRand

@BrumRand huh?

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In reply to @aperfect

@aperfect @jiamins @LWigelsworth the most "handpicking" I can tolerate with my chocolate is when the shopkeeper puts it on the shelf

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In reply to @aperfect

@aperfect @jiamins @LWigelsworth but I'm just sad because I'm missing an evening of chocolate tasting next month to hear Helen sing.

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Wow, people are different on the posh half of the metro line. This dude's on a macbook! Imagine that! Readers, he's really doing it.

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Cool macbook dude is getting off at the same stop as me. I've finally done it! I'm part of the 'in' crowd!

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Oh no my fillings weren't artisanally handcrafted by an impoverished yet passionate artist/poet, I'll be exposed as a fraud any moment now

0 favourites 0 retweets

In reply to @PapaGanoush1

@PapaGanoush1 Merguez! I haven't had that in a while. You might just have tempted me

1 favourite 1 retweet

Look at this unfinished line hiding out in my code, minding its own business and causing no errors! github.com/numbas/Numbas/…

0 favourites 0 retweets

@katemath @evelynjlamb that reminds me: a 12-year-old I was helping yesterday was unwittingly translating sums into RPN in his head, +

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@katemath @evelynjlamb + so couldn't work out how to enter them into his CASIO calculator. Told him the "normal" way rather than explained

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In reply to @BritishComedy

@UKComedyNews has a "The <name of person or people> Show" ever worked on the BBC?

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In reply to @TweetsofCushing

@TweetsofCushing do it!

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Having a fun time-out reading my favourite comic book in all the world

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Mad props to the bearded dude with the model Chinese junk on the boating lake

1 favourite 0 retweets

Friends, I took on the @aperiodical news queue and failed. The only new post you're getting is an integer sequence review tomorrow. Sorry.

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In reply to @TweetsofCushing

@TweetsofCushing what is it?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb yesss most definitely we should try to do this. Where will you be visiting?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb btw, we did the last review over skype because Cushing's in San Diego for 6 months, so we could do this right now

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb Cambridge is a full day's travel from Newcastle. It's not far from London, so if I visit there we could meet...

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literally just said the words "I got bored with it before you found out about it." It's true, I'm a massive hipster.

1 favourite 0 retweets

Script correctly recognises turtle is not a mathematician. Caption writer unclear on definition of "examine".

0 favourites 1 retweet

In reply to @TheJournalNews

@TheJournalNews I've been saying hello to them every morning! I assumed they'd just fly back over.

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths ah yes, the islands which, along with the Inner Hebrides, make up the Auto Hebrides

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb unscrew your hard disk and run to someone with a disk enclosure to plug into their machine?

0 favourites 0 retweets

Ren and Stimpy on 4music! Happy joy!

0 favourites 0 retweets

In reply to @InterestingNums

@InterestingNums hey now, you're pushing it a bit there

0 favourites 0 retweets

With programming by me, cp! RT @jamesgrime: Building Houses Problem: youtu.be/YMkziQhJkmM?a via @YouTube

0 favourites 2 retweets

In reply to @jamesgrime

@jamesgrime groovy.

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In reply to @kenfodder

@kenfodder might be worth mentioning to foreigners?

0 favourites 0 retweets

2048 becomes a lot harder when you try to get the lowest score possible

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So what we've learned today is that @JSEllenberg didn't have long to prepare the pictures in his slides

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing Conway enumerates starting at zero. Will you disagree even with him?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb this is easily solved by scraping the arXiv and doing a frequency count

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Here's a thing: christianp.github.io/regex-fractals/ (not my idea)

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Regular expression fractals in JavaScript: christianp.github.io/regex-fractals/

2 favourites 2 retweets

hey, Visual C++ is pretty easy! You just paste bits out of the documentation and it works. #bestprogrammer

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ajk_44 @MathsJam *looks up circular slide rule medallion prices on eBay*

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w like, more seriously than train doors normally squash feet? You're not having much luck with your appendages!

0 favourites 0 retweets

The following is a program to produce the Fibonacci numbers which I found in a dusty old book of poetry: plus.google.com/+ChristianPerf…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge whoah, Baader Meinhof madness! I just sent a sarky Limerick whose final rhyme is CERN, and then I saw this!

0 favourites 0 retweets

In reply to @nypJeremyC

@nypJeremyC @MathJax @twinethreads it's my day off, so I might have a github repo for you by the end of the day...

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Thought I was 15 minutes early for the Shields ferry, instead I missed it by seconds. I looked at the wrong Shields's timetable!

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This exercise bike is too small vine.co/v/MOQtgzhAbE2

0 favourites 0 retweets

In reply to @nypJeremyC

@nypJeremyC @MathJax @twinethreads A day later than promised, but here you go: github.com/christianp/twi…

1 favourite 0 retweets

If you've ever wanted to use MathJax with Twine, here are a couple of macros to make it happen: github.com/christianp/twi…

0 favourites 0 retweets

In reply to @tynesidecinema

@tynesidecinema will Grand Budapest Hotel still be on next weekend?

1 favourite 0 retweets

In reply to @mountain_ghosts

@jcoglan Here's how: sed s/beard/person/g #unhelpfulneckpersonadvice

1 favourite 0 retweets

This apple has a singularity

1 favourite 1 retweet

I think I might be this generation's Ramanujan. Did you know 10pi - sqrt(2) = 30 (to 3 d.p.)? CRAZY!

1 favourite 0 retweets

@debecca I meant 2dp... Maybe I'm not Ramanujan. It's 4sf though, isn't it?

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@debecca round both sides to 2dp, and they're equal. Makes sense to me.

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At my current rate of repayment my student loan will be paid off in about 400 years. Is this government prepared to keep me alive that long?

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In reply to @stecks

@stecks I reckon they're willing to keep some legally-responsible component of me alive in a jar for perpetuity

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In reply to @stecks

@stecks so I'll have to take out a loan to pay for my jar, too? Oh deary me

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In reply to @stecks

@stecks something something foot the bill?

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April

"A true quantum reason for why people fib on April first." arxiv.org/abs/1403.8010 (via @TweetsofCushing)

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In reply to @ColinTheMathmo

@ColinTheMathmo are you reading blog.aggregateknowledge.com/2012/10/25/ske… ?

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Iowa is ALL SQUARES. I had no idea! maps.google.co.uk/?ll=41.686758,… (official state of the podcast, @stecks?)

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In reply to @NewcastleCC

@NewcastleCC gosh, there's a lot of chewing gum stuck to Northumberland Street, isn't there?

1 favourite 0 retweets

Get in to work half an hour early. Wait half an hour for the Uni's brokenola network to load any pages. #efficiency

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I have 3*7*37 = 777 followers. Both sides of that equation are pretty :)

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In reply to @MouldS

@MouldS yes, @standupmaths is aware

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In reply to @jgrahamc

@jgrahamc I can believe that.

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In reply to @standupmaths

@standupmaths I'm in London the day of your radio recording because my gf's singing in St Paul's earlier that day. Holy good timing Batman!

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In reply to @rockhyrax

@rockhyrax @ColinTheMathmo Yikes, that was a long time ago!

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In reply to @lborouniversity

@lborouniversity someone hacked into the site - that post wasn't meant to be published yet. We'll do a proper post soon!

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In reply to @standupmaths

@standupmaths @stecks @aperiodical noobs. "P455w0rd1!" is way more secure

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yep. Lots and lots of requests trying to get in, and deleting the offending user account stopped it.

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In reply to @numberphile

@numberphile who is this impostor @jamesgrime? The face in the thumbnail is only at most 50% silly!

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Autism day was yesterday. Which is unlucky for me, because I've failed to find the venue my girlfriend is singing in and could do with help

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Today's my first day working on @MathJax, and coincidentally also the start of the "CP breaks everyone's websites" countdown clock.

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.@maplesoft how many times do I need to opt out of emails from you before you actually stop?

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In reply to @mike_geogebra

@mike_geogebra it's fine as a proof of concept :)
I may email you about GeoGebra's JavaScript API at some point

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Someone in the uni's PR has decided to send a daily global news briefing to all employees.

*** CP NEWS BRIEFING ***
Why.
*** END ***

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In reply to @peterrowlett

@peterrowlett @jamesgrime instructables.com/id/Dodecahedro… ?

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I've always had an affinity for Alsace. "@matamix: Les prénoms les plus portés (...) "

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Milkmaids don't look at explosions

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In reply to @mountain_ghosts

@jcoglan yes. One brute-forced an account on my server a couple of days ago. But your passwords are doubtless more secure than my users'

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A request from @TweetsofCushing: a bookmarklet which changes the base of every number on the page. gist.github.com/christianp/100…

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In reply to @standupmaths

@standupmaths you'd like to read the web in binary, or hexadecimal, or dozenal, wouldn't you? I made a script: plus.google.com/+ChristianPerf…

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In reply to @standupmaths

@standupmaths (now updated so it adds subscript annotations of the chosen base for readability)

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This is why the script exists.

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My age is not the end of any aliquot sequence. oeis.org/A063769 I hope my conduct reflects that.

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Very tempted to keep the line `Yeah, "the cloud", why not.` in this talk.

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Yesterday >100 apparent spambots followed me, all tweeting about giveaways and "sweeps". Turns out they were trying to follow @christianpf

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They were all from the southern US, almost all mums, and each a "Jesus freak" or "Jesus addict". They must get paid to tweet about contests

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old insurer: "pay us £35 and we'll send your proof of no claims, but we'll only give you 4 years instead of 5, for cancelling early"

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new insurer: "ehh, we'll just wait the extra week for your old policy to expire."

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No claims discount is just an anti-competitive racket, right? Old insurer led me to believe the cheapest option would be to stay with them

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In reply to @sxpmaths

@sxpmaths well, I've bought a new car so the policies overlap, and apparently you can't be a safe driver on two cars at once

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In reply to @jamesgrime

@jamesgrime @MouldS "what a disgusting mess! But that's part of the fun of having guns."

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Problem: ssh on windows doesn't cope with a space in your home directory's path.
Solution: change name of home directory

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Problem: It's basically impossible to change the name of your home directory.
Solution: create a new user, and copy everything over

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Problem: everything on the system belongs to the old user.
Solution: change the owner of every file

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Problem: changing file ownership is a ridiculously convoluted process.
Solution: (╯°□°)╯︵ ┻━┻

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In reply to @pelagikat

@hornmaths my school served turkey whales.

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"Using Outlook Web App or Windows PowerShell to modify your rules will delete any rules that were previously turned off using Outlook."

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it's like I'm taking a day trip to Microsoft Hell today.

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In reply to @peterrowlett

@peterrowlett yeah yeah, but I have to use windows to test on IE

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In reply to @peterrowlett

@peterrowlett but then the virtualbox would have the same problem my real PC is having

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In reply to @evelynjlamb

@evelynjlamb yeah, I thought that was a bit iffy

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In London buying licences for my new taxi firm with a touch of class, Downton Cabbie

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In reply to @DanielColquitt

@DanielColquitt your office doesn't have 24 hour access to coffee facilities? And you're a *mathematician*, you say?

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In reply to @evelynjlamb

@evelynjlamb yeah, I assumed as much. I would've given up and not had an image, myself

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The quintessence of management: using as nouns words which are not nouns.

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Corollary quintessence of management: using nouns as verbs

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In reply to @icecolbeveridge

@icecolbeveridge I certainly didn't!

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In reply to @standupmaths

@standupmaths @amateursuman @alexbellos remember that @MarcusduSautoy is a shiney so he's worth like π times as much

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In reply to @stecks

@stecks I've got a middlingly-sized one, a couple of feet long. How long does it need to be?

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In reply to @standupmaths

@standupmaths looks like the kind of thing used to make the Sagrada Familia in Barcelona

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In reply to @stecks

@stecks "some". I haven't used it in a while.

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In reply to @aperfect

@aperfect maybe you have a brother who maybe specialised in formal languages...

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Today's test user: Paul di Testa.

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Each time I need to make a code design decision from now on, I'll consult a PHP developer, and do the opposite.

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Do I know anyone who works for MyMaths? Surely I must. Can you DM me if you do?

0 favourites 3 retweets

In reply to @willigkeit

@Willzp_ @AdamCreen I suspect they haven't updated it in years. Why would you? They're raking it in.

1 favourite 0 retweets

In reply to @robotmaths

@AdamCreen @Willzp_ to be fair the activities are quite good, and if anyone's going to be compatible with Flash for a long time it's schools

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In reply to @Bishnavitch

@Bishnavitch it's the version of beef they eat in Valhalla. In fact, didn't you have some at my crazy barbecue?

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In reply to @Bishnavitch

@Bishnavitch bison defo was on the menu. Maybe you were too busy eating testicles to notice. We went to fat hippo on Friday (oops)

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In reply to @standupmaths

@standupmaths I'm not sure if your poster is actually there. It looks too crisp, like you've used Photoshop's perspective tool

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In reply to @standupmaths

@standupmaths the BBC reproduces press releases far too readily. Of course they know what causes it.

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In reply to @alisonkiddle

@ajk_44 aha! Here's a question I've been thinking of lately: is there a number in any language which is valid hexadecimal? i.e uses only A-F

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Today in regular expressions: a regular expression was not the solution.

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In reply to @jamesgrime

@jamesgrime @njj4 who's up for a "The first three books of Euclid, for babies"? Just taking Byrne and switching to comic sans should suffice

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Is there a human being named N. Pytheas Fogg, or is it a pseudonym? springer.com/mathematics/nu…

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In reply to @walkingrandomly

@walkingrandomly meanwhile, Newcastle is paying for Panopto, which isn't very good

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Just watched the ISS for the first time ever. So cool!

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In reply to @ebuie

@ebuie cool!

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Heh, nice 404 page on the @maanow website.

1 favourite 0 retweets

Apparently the BT call centre employs cheery old Scottish grannies now

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In reply to @mathhombre

@mathhombre are you aware of mathematische-basteleien.de/eggcurves.htm?

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In reply to @mountain_ghosts

@jcoglan deck.js

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In reply to @Andrew_Taylor

@Andrew_Taylor because it wasn't proved

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2tall.com has started stocking my favourite boxfresh shoes! So long, walktall, your stock policy will remain a mystery forever!

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Signed up for a hosting provider. They immediately emailed me my password in plaintext. Oh dear.

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"This 10 or 12 digit number is on the reverse side of your photocard licence." Well, this "number" starts with two letters.

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In reply to @peterrowlett

@peterrowlett it's at least base 17, but the example image on the website implies it's base 26

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In reply to @peterrowlett

@peterrowlett ... I mean base 36

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In reply to @Thalesdisciple

@Thalesdisciple Because epsilon is always greater than zero?

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Baltzersens in Harrogate has some nice infographics on the walls flickr.com/photos/christi… @mathsinthecity

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Off to London for the weekend!

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For no apparent reason, a Rubik's boob tube sandiegoreader.com/news/2013/jul/…

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This staircase in the 80s building at Disney's Pop Century resort is encased in a huge Rubik's Cube flickr.com/photos/daryl_m…

1 favourite 0 retweets

The geek singularity: balancing 15 books on her head, reciting pi to 100 digits, and solving a Rubik's cube youtube.com/watch?v=bUGjUC…

0 favourites 1 retweet

In reply to @standupmaths

@standupmaths Where's that?

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In reply to @DrSMJames

@sam_james30 you'll be transmuting metals before you know it

1 favourite 0 retweets

If I imagine Cathars to be like PHP developers, I have a lot of sympathy for the Inquisition

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In reply to @MathsJam

@MathsJam and I've updated the closest MathsJam map: mathsjam.com/closest-mathsj… New Caledonians may need to change their travel plans

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Happy second birthday to the @aperiodical, five days ago. I'm a terrible blogfather.

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May

In reply to @charliesgames

@charliesgames haha, is that the same horsey as mine?

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In tribute to Bob Hoskins, I currently have 808 followers.

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In reply to @charliesgames

@charliesgames that horsey is honestly the reason I stopped making games. I realised I couldn't do any better.

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A thing being integrated is called an integrand. What do you call a thing being differentiated?

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In reply to @divbyzero

@divbyzero @JSEllenberg Monopoly Honey

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Newcastle dog breeder trading under the name "Barker and Bone House". Very droll.

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So my girlfriend has Sky and I have a question: is it normal for the Chinese channel to show a tech programme apparently from the late 90s?

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In Barter Books in Alnwick. One for @peterrowlett?

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In reply to @peterrowlett

@peterrowlett when's your birthday? ;)

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This is a very interesting book! Another top purchase from Barter Books

1 favourite 0 retweets

Tragedy #469: having it and eating it too is geometrically impossible tragedyseries.tumblr.com/post/848249872…

1 favourite 0 retweets

Struggling valiantly not to rename the folder "cork workshop" to "corkshop"

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I got four-twenties-ten-nine problems but French numbering ain't one.

10 favourites 19 retweets

To the anonymous person who tried to post obnoxious LaTeX on my blog: why remain anonymous? checkmyworking.com/2012/01/how-to…

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Aha! A .ggb file is just a renamed .zip, and the global javascript is just a file inside it! #sohandy

1 favourite 0 retweets

In reply to @libraryncl

@nclroblib is it usual for the EBL reader to stop working if you don't change the page for a couple of hours?

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In reply to @libraryncl

@nclroblib the second time I reloaded it, it said it was a book the library doesn't own, so maybe it forgot to show the popup warning

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You're in trouble when even the big and tall shop doesn't have sleeves long enough.

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To quote the big and tall shop dude: "do you swing through the jungle branches, eh?" #littlebitrude

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Phew! Slaters menswear (& zoo supplies) sorted me out. I was beginning to feel like I might be starting in a sequel to Octodad

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In reply to @stecks

@stecks maybe he was establishing rapport. For context, he was taller than me, but didn't have as long arms

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In reply to @lyd_w

@lyd_w must be the proliferation of mini supermarkets

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Hey, remember when UKIP was just that weird party with Kilroy in it?

1 favourite 1 retweet

High drama as the number of professions involved in installing this new cooker increases to 3

1 favourite 0 retweets

Setting up a blockchain for my new decentralised Premier League sticker-based cryptocurrency, Paul GasCoin

2 favourites 3 retweets

I'm in Cork for a couple of days, so I'm acclimatising myself by rewatching Soupy Norman youtube.com/watch?v=vr5MYw…

0 favourites 0 retweets

In reply to @tarim8

@tarim8 @ColinTheMathmo @njj4 William Stein of the Sage Math project recommends bup: github.com/bup/bup

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What I'm going to call "crenellated brutalism" at Cork Institute of Technology

2 favourites 0 retweets

In the Blarney Room at this hotel: "Biznetcork Skillnet". I hope I never find out if that's as awful as it sounds.

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor coffee? That's where I'm a viking!

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Huh! How come I'm flying via Heathrow, then?

0 favourites 0 retweets

In reply to @Thalesdisciple

@Thalesdisciple Ooh, nice covers!

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Hilary Portmantel

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I had no idea this groovy sculpture was in the middle of Birmingham! mateturismo.wordpress.com/2014/05/12/los…

0 favourites 0 retweets

In reply to @jjaron

@jjaron 1) thanks for linking to my power law post! 2) your Alex Bellos review has been plagiarised: sciencepublication.wordpress.com/2014/05/13/ale…

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I've finally become a proper Dirty Socialist by joining a union.

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK UCU

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @standupmaths Crikey, he didn't even wear a suit and tie for the HoC. That do must be serious business!

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Suggestions on how to turn my t-shirt drawer into a FIFO stack gladly accepted.

0 favourites 0 retweets

In reply to @mathsfeedback

@mathsfeedback it's a drawer, not a wardrobe! I used to use that system with my jumpers when I had a wardrobe

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OK, the consensus seems to be to roll them up, and go left-to-right

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In reply to @aPaulTaylor

@aPaulTaylor that would be a FILO, unless you lift the stack up each time you take one from the bottom

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In reply to @aPaulTaylor

@aPaulTaylor the terminology varies

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Do I know anyone with Mathematica and half an hour to spare to do this for me? blog.wolfram.com/2013/05/17/mak…

0 favourites 1 retweet

In a talk about WebPA. The algorithm seems to have been produced by a random walk on arithmetic operations.

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Summary of the talk: "we've never heard of OR"

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In reply to @akater

@akater to make a Conchita Wurst equation

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The oven repairman has said he'll come "between 12:16 and 3:16" tomorrow. Is that very precise or not at all? @standupmaths?

0 favourites 1 retweet

In reply to @standupmaths

@standupmaths interesting! I have the opposite opinion.

0 favourites 0 retweets

When and why did Lewis Hamilton get a Damon Hill ventriloquist's dummy? news.bbcimg.co.uk/media/images/7…

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK my lady!

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In reply to @JanvierUK

@JanvierUK CBE is the natural next step, I'd say

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Wow, that came round quickly! It's May's @MathsJam next Tuesday. Time to send an email...

0 favourites 0 retweets

In reply to @csgillespie

@csgillespie that sounds really interesting!

0 favourites 0 retweets

Oven repairman's mind couldn't hold both an extensive knowledge of oven repair and the concept that a man might use an oven

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Today.

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This pigeon is trying very hard to domesticate himself. He began by eating rabbit food; now he's sitting close to us

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Aperiodical Round Up 10! Featuring Uri Geller, far too much poetry, academic infighting, and clip-art! aperiodical.com/2013/08/aperio…

2 favourites 2 retweets

In reply to @peterrowlett

@peterrowlett haha, has it really been that long? I'll fix it

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Oven update: a second repairman is coming on Thursday, which will take us to five professionals involved in the installation. God help us.

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I just want to cook some dinner. Is that too much to ask?

1 favourite 0 retweets

In reply to @MrHonner

@MrHonner why is it 3d? And what an unintuitive interface! It needs a lot of work

0 favourites 0 retweets

I've been playing around with swirly graphics codepen.io/christianp/pen…

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It's Newcastle @MathsJam tonight. 7pm at the Charles Grey pub.

0 favourites 2 retweets

Today I learned: `ls -tralala` lists all files in the current directory in reverse date order. #funwithredundancy

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @SparksMaths and I appear to have become Leeds

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In reply to @aperfect

@aperfect they do up here. In London, I suppose they have no incentive to

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Wowzers, Endsleigh have been so unhelpful with sending me my no claims bonus. There's also the fact no claims is an anticompetitive swizz...

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The one time my PC manages to go to sleep automatically is when I leave it cloning a disk overnight. Typical!

0 favourites 0 retweets

Help help I looked at this painting the-athenaeum.org/art/full.php?I…

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib what'll they do? Recommend you go across town, where the wifi isn't overloaded?

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The 1988 Oxford Cambridge boat race, according to Punch (in 1888)

1 favourite 0 retweets

Today's oven repair man is neither precise nor accurate: he's entirely missed the 10:46 - 12:46 window.

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In reply to @DanielColquitt

@DanielColquitt I was on a train once with a woman who appeared to carry on a very flirty conversation with her paramour... through a tunnel

0 favourites 0 retweets

In reply to @AkashiyaViv

@AkashiyaViv @suffolkmaths if it helps: it's not 90 degrees.

0 favourites 0 retweets

Going to Dublin tomorrow! Excited!

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In reply to @peterrowlett

@peterrowlett Hooray! Good luck!

0 favourites 0 retweets

Awful! "@DanielColquitt: Okay, the guys @peta are clearly quacks. And insensitive scaremongering quacks at that. pic.twitter.com/lsa3G0Jq1Z"

0 favourites 3 retweets

In reply to @samholloway

@samholloway oh please no don't let that be a thing

0 favourites 0 retweets

Hahaha: Get Outta Toon! play.google.com/store/apps/det…

0 favourites 0 retweets

In reply to @kenfodder

@kenfodder haha, why have you made such a miserable machine?

0 favourites 0 retweets

Today's unexpectedly balmy weather makes my barbecue plans look like a masterpiece of foresight.

0 favourites 0 retweets

June

In reply to @C_J_Smith

@C_J_Smith maybe it's clairvoyant?

0 favourites 0 retweets

Flying to Poland to open my new Bond-themed gents' barbers, Beards Poznan

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 make sure you play with the swooshy portraits in the Michael and Lily Atiyah gallery

0 favourites 0 retweets

I'm off to the bank to pay in a decade's worth of change. I'm running a sweepstakes in the office on how much it's worth

2 favourites 0 retweets

If you want to play along at home, see what you can make of this

1 favourite 0 retweets

We were way off! £189.58 in the end. My offer of 2% of the total to the closest guess is retrospectively generous

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Another day, another freakout on a JISCmail list because it defaults to reply-to-list and doesn't make reply-to-sender easy

0 favourites 0 retweets

Doing a "ch" shop: cheese, chips, and tuna.

0 favourites 0 retweets

A hangman bot: gist.github.com/christianp/983…

1 favourite 0 retweets

In reply to @semiBad

@semiBad steady on, @PeterMolydeux!

1 favourite 0 retweets

Philips advert: "the perfect shaver for any kind of dad". Ad shows four models of shaver. #quantifierabuse

0 favourites 1 retweet

"Surprise him with the ultimate shaving performance." - mum gets breakfast in bed, but dad gets unsolicited shearing?

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welp, Newcastle University is banned from the arXiv again. Groundlessly, I speculate a CS student tried to crawl it

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch congratulations! Where are you going?

0 favourites 0 retweets

I've updated my wp-writemaths plugin so you can preview LaTeX maths inside the wordpress post editor: github.com/christianp/wp-…

0 favourites 0 retweets

Just did the National Numeracy challenge with @TweetsofCushing. We're on Level 2 already!

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @aperiodical Ahh, poo. I'll see what's up

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @aperiodical good! I *definitely* did something to make that happen. Definitely.

0 favourites 0 retweets

Firefox's debugger doesn't keep breakpoints when you reopen a window. That makes fixing a bug which happens on window open quite hard.

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira I'm debugging on someone else's server, so no

0 favourites 0 retweets

Today in @moodle's broken SCORM module: let's send a 134k character query string. That definitely won't get truncated by the server. Defo.

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths @guardian and mathematicians everywhere respond with citations of Arrow's theorem

0 favourites 0 retweets

In reply to @christianp

@sxpmaths @guardian (or, if they're in Operations Research, with cries of "if you make a measurement, someone will game it!")

0 favourites 0 retweets

In reply to @tim_hunt

@tim_hunt marked wontfix a year ago tracker.moodle.org/browse/MDL-370…

0 favourites 0 retweets

In reply to @christianp

@tim_hunt the solution is to encode the data in one var, not do a var for each datamodel element. Dan's completely unwilling to accept code

0 favourites 0 retweets

In reply to @tim_hunt

@tim_hunt A Numbas test with 20 questions, each with lots of interactions. My experience is he's rejected my code

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett rrr! That post went weird when it was published. I'll fix it

0 favourites 0 retweets

In reply to @stecks

@stecks @peterrowlett I honestly have no idea what beef WordPress has with you. I thought it was macs, but you did that one on your phone

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A Ford Model T just drove past me in Tynemouth!

1 favourite 1 retweet

This is magic! play.google.com/store/apps/det…

2 favourites 0 retweets

I see dyadic numbers are in this year: not just 3/4 but 7/8 length trousers for sale in M&S

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In reply to @TweetsofCushing

@TweetsofCushing [citation needed]

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Has anyone listened to me and @TweetsofCushing taking on the @Nat_Numeracy challenge? aperiodical.com/2014/06/cp-and…

1 favourite 1 retweet

Finalising the tasting menu at my new restaurant focused on taboo meats, "Horses, Four Courses"

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Hey guys, please talk to this boy I've got locked in one of the research rooms codepen.io/christianp/ful…

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In reply to @evelynjlamb

@evelynjlamb that's like the most mundane, annoying form of culture shock

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In reply to @evelynjlamb

@evelynjlamb very impressed you got the shower working first go. I would've said that was the most obtuse appliance

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In reply to @evelynjlamb

@evelynjlamb ... unless it's a proper old-fashioned shower and not a new electric one

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In reply to @evelynjlamb

@evelynjlamb well done. And have you recognised the timeless brilliance of the British plug design yet? Maybe take a minute to reflect on it

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In reply to @evelynjlamb

@evelynjlamb they're gloriously over-engineered. It's basically impossible to electrocute yourself: the earth pin opens up the live pins

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In reply to @christianp

@evelynjlamb and once they're in, they don't fall out easily. Oh, and they run at a respectable 230V, not your pansy 120V

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Oh dear, @evelynjlamb has accidentally got me tweeting panegyrics about BS 1363, the UK plug standard. It's just... so *good*!

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I mean, every plug has its own fuse. That's pessimism about whether the device will function properly that other countries just can't match

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This is also a good occasion to point out that "safety socket covers" are the opposite of safe: fatallyflawed.org.uk

1 favourite 1 retweet

In reply to @evelynjlamb

@evelynjlamb no, the fuse is in the plug itself. The switch is just a happy feature to turn the supply on or off.

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In reply to @evelynjlamb

@evelynjlamb honestly can't imagine why it isn't standard everywhere. Do you just unplug things when you don't want them to be on any more?

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An ostrich running inside a rotating tesseract. I don't know why. publicdomainreview.org/collections/te…

8 favourites 8 retweets

In reply to @evelynjlamb

@evelynjlamb some houses have them, but yes, mainly hotels

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@Sara_Tindall crikey! I hope one is a less pressing concern than the other.

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In reply to @JPickford

@JPickford they'd have to be kicked out, and I don't think there's ever been a plebiscite to *lose* territory

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In reply to @aPaulTaylor

@aPaulTaylor @evelynjlamb I'm sure you'll be gratified to learn that your remark is new to the conversation

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In reply to @wilderlab

@wilderlab I don't get it. How does addition work? Is KING [11,9,14,7]?

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In reply to @wilderlab

@wilderlab ahh, so a word's value is just the sum of the letter values

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In reply to @wilderlab

@wilderlab CAN+LEAVE = TRIP

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In reply to @standupmaths

@standupmaths taking corporate personhood in the other direction, eh?

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In reply to @evelynjlamb

@evelynjlamb and remember that 20% sales tax is included in prices

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In reply to @mathhombre

@mathhombre yes, we use "and"

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In reply to @mathhombre

@mathhombre why?

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In reply to @LearningMaths

@LearningMaths @mathhombre @evelynjlamb @divbyzero whaaa?!

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In reply to @averypickford

@woutgeo @mathhombre @evelynjlamb @divbyzero @LearningMaths we'd solve that by writing one-hundred-and-seven thousandths for 107/1000

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In reply to @mathhombre

@mathhombre @robinhouston "X hundred and (Y<100)"

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In reply to @LearningMaths

@LearningMaths @mathhombre @woutgeo @evelynjlamb @divbyzero X=Y+Z, Y=100*N, Z<100. Pronounced "Y and Z"

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A work-in-progress post about a cool thing I'm doing with pattern-matching syntax trees: checkmyworking.com/2014/06/patter…

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston not TimeCube, but unnecessarily obsessed with patents

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In reply to @robinhouston

@robinhouston like, nonstandard analysis isn't new, and he isn't making any wild claims that I can see, he's just obsessed with awards

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In reply to @TimandraHarknes

@TimandraHarknes @elinoroberts As long as it hasn't got "To <student> with love, from ∫ cos(x) dx = sin(x) + C" engraved on the side, yeah

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In reply to @robinhouston

@robinhouston ahh. That's quite likely, but very different from TimeCube

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In Chrome's javascript debugger, is there a more convenient way of breaking on a ReferenceError than "try{thing;false;}catch(e){true}"

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In reply to @robinhouston

@robinhouston on closer inspection, yes: it's hypercomputation nonsense that doesn't actually say anything

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Has it really been ten years since the 80s revival?

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In reply to @hellogeri

@hellogeri the number 16 is just fine, and it's way cheaper than the Airlink/Aircoach buses

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge you explained what the symbols stand for: instant disqualification

0 favourites 1 retweet

Oh, big sweaty poo! I forgot to commit the code I wrote at home last week. I'd better find something else to do.

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Man, I thought this was going to make me rich, but MIT got there before me: museumstore.mit.edu/product/what-h…

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Trying to think of a name for my admin user, along the lines of my George Test/Gloria Testefan test users. "Idi Admin" feels inappropriate

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Admin van Buuren

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Tonight is @MathsJam night! 7pm in pubs around the world. Find your closest one at mathsjam.com/closest-mathsj… I run the Newcastle one

1 favourite 4 retweets

In reply to @peterrowlett

@peterrowlett I tweeted that a few days ago. Not sure I can add to it, but I should look into resurrecting the questions site!

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We have unary minus, i.e. "-2" is the same as "0-2". Why don't we have unary division, i.e. "÷2" could mean the same as "1÷2"?

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In reply to @quasicoherence

@sqrtnegative1 @evelynjlamb not really: that still involves another number and a binary operation

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In reply to @samholloway

@samholloway x = 1x?

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In reply to @JamesMoosh

@JamesMoosh the notation isn't

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To those saying "but x^{-1}": I'm talking about notation! Of course you can make any binary operation unary by filling in one of the numbers

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In reply to @samholloway

.@samholloway If we taught kids "÷2 means 'a half'", they'd accept that, like "3½ means 'three and a half'"

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In reply to @samholloway

.@samholloway and my point was that '÷x' is not a convention. Just interesting that notation didn't develop that way

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OK, duly decided: I'm writing unit fractions as ÷x from now on. Inform any future correspondents.

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In reply to @evelynjlamb

@evelynjlamb no new notation since 1962? This page needs expanding!

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In reply to @Electrokittie

@Electrokittie and what you've squeezed out of you

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In reply to @Electrokittie

@Electrokittie in fact, that handle would still be valid if *she* worked for the RAF

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In reply to @Electrokittie

@Electrokittie yes militarywiveschoirs.org

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I've finished my post about pattern-matching syntax trees: checkmyworking.com/2014/06/patter…

1 favourite 1 retweet

In reply to @axiomsofchoice

@axiomsofchoice yeah, it's more complicated than that. I'm familiar with rewriting systems

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In reply to @axiomsofchoice

@axiomsofchoice or, it's exactly as complicated as that, but I have further requirements

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In reply to @noneatnamesleft

@noneatnamesleft yep, except for 2/3: they only wrote sums of unit fractions maths.surrey.ac.uk/hosted-sites/R…

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In reply to @peterrowlett

@peterrowlett unintended impact of your unintended impact article?

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In reply to @RealityMinus3

@RealityMinus3 then what's '-x'?

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In reply to @RealityMinus3

@RealityMinus3 that's what I'm getting at: why didn't the same convention arise for division?

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In reply to @OddballDave

@OddballDave ow it hurts my brain!

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In reply to @OddballDave

@OddballDave my best so far is 29

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In reply to @OddballDave

@OddballDave 38, and I've just realised the star and circle are supposed to be different colours

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In reply to @OddballDave

@OddballDave 44! So are they actually the same colour? I'm colourblind so I have no idea

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Wow, google word definitions give a lot more information now!

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I scored 0047 in @Psyclic_game. Ow ow ow ow my brains
gooeyblob.com/psyclic

1 favourite 1 retweet

In reply to @CardColm

@CardColm imagine if he'd peaked at age 3!

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In reply to @ruimvieira

@ruimvieira I believe there are clubs for people into that kind of thing

1 favourite 0 retweets

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s your PhD has a word limit?!

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In reply to @evelynjlamb

@evelynjlamb I once watched my ferry leave as I was walking down the jetty. It's nice to have a bit of variety

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@ejectamenta_com @MathsJam @NMSI @plusmathsorg are you aware of aperiodical.com/2012/06/wltm-r… ?

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I've discovered the quick print button on the office printer. I reckon that'll save me a cumulative 10 minutes or so by the time I retire

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Found a groovy book in the school library

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In reply to @evelynjlamb

@evelynjlamb be my guest!

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In reply to @evelynjlamb

@evelynjlamb I am prepared for a torrent of "I don't like change!" comments on that post

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+1 nail on the head RT @evelynjlamb Yes, it's about notation, though: when we see -2, we think of that as a number, when we see ÷2, we don't

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I expect the authors to file a copyright suit: RT @sxpmaths: @christianp 10 PRINT "BASIC statistics " : 20 GOTO 10 !

1 favourite 0 retweets

In reply to @haggismaths

@haggismaths happily, there is! mathprofessorquotes.tumblr.com

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In reply to @divbyzero

@divbyzero I can see it!

1 favourite 0 retweets

In reply to @jjaron

@jjaron that's quite a low-poly x-ray

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Stupid question time: is p^n*q^m ever smaller than p^n+q^m? (p,q primes, n,m natural numbers)

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In reply to @tim_hunt

@tim_hunt yeah, I got that but left the tweet up in case I was being doubly stupid. Glad I'm not!

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So it turns out writing randomised questions about permutation groups is quite hard.

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In reply to @LargeCardinal

@LargeCardinal @JamesMoosh none of the MO threads turned up when I searched, only M.SE. I'll look now...

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In reply to @LargeCardinal

@LargeCardinal @JamesMoosh yep, couldn't find anything on MO apart from one closed thread with nothing useful in it. Interesting!

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Just realised the way I do division in my head is completely different to the way I do it on paper. Maybe the paper method needs more RAM

0 favourites 1 retweet

Considering making a Panini-style maths sticker album

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In reply to @LargeCardinal

@LargeCardinal ta!

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In reply to @icecolbeveridge

@icecolbeveridge currently stuck on which platonic solid to make a shiney

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Moving offices, I'm reminded again that recreational maths is a solved problem.

4 favourites 3 retweets

After being asked to improv it at a few minutes' notice, I've put the slides for my ~GCSE-level Herschel talk online staff.ncl.ac.uk/christian.perf…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett yeah, for me too! I wonder what's going on

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In reply to @peterrowlett

@peterrowlett Chrome didn't like something about SVGs not from localhost. Bizarre. I've changed to PNGs

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@ncllibsage @nclroblib just in time! We were just saying yesterday we need an updated library video for our first year induction material

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@ncllibsage you are correct in your supposition! Thanks

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In reply to @evelynjlamb

.@evelynjlamb that thought could go viral if you make it needlessly specific: every fibonacci number is within 1 of a multiple of 3. Try it!

3 favourites 4 retweets

In reply to @Electrokittie

@Electrokittie ... freckles can be quite nice

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In reply to @stecks

@stecks @aPaulTaylor @evelynjlamb two mancs and a yank... what am I letting myself in for?

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Happy birthday Alan! (a little bit late)

1 favourite 3 retweets

Did you know there's more than one Newcastle? Newcastle-upon-Tyne, Newcastle-under-Lyme, Newcastle-in-one, Newcastle-versus-Predator...

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In reply to @noneatnamesleft

@noneatnamesleft yes, they had a big meeting in our civic centre a couple of years ago

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Why can't google resolve DOIs?

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July

In reply to @evelynjlamb

@evelynjlamb Sir John Soane's museum is great soane.org

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In reply to @evelynjlamb

@evelynjlamb and you'll probably like a choral service at St Martin's in the Fields stmartin-in-the-fields.org

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In reply to @evelynjlamb

@evelynjlamb not necessarily! St Paul's is a lot bigger, after all...

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Coo! A physically universal cellular automaton web.mit.edu/lrs/www/physCA/

1 favourite 0 retweets

In reply to @tim_hunt

@tim_hunt oh no, that's awful! PHP strikes again

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Hm. Even though it involves the primes, I thought I might have had a winner with this one. Poo to you, Labos Elemer!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I dm-ed you, or so I thought. I'll email. Colin@solypsis.co.uk?

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Writing worked solutions to randomised questions: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 favourite 0 retweets

In reply to @Derektionary

@Derektionary @OnThisDayinMath @wilderlab there are no numbers such that x^3 = (a)(a+1)(a+2) for x<60000000

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In reply to @Derektionary

@Derektionary @OnThisDayinMath @wilderlab hm... time to start the Online Encyclopedia of Impossible Sequences

3 favourites 1 retweet

I'm finding it surprisingly tricky to find an x^n that forms an arithmetic sequence when you split it into equal-sized chunks

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In reply to @MathJax

@MathJax @janmarthedal oooh! Nice.

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In reply to @CardColm

@CardColm we've crossed paths! I'm in London today. So sad we couldn't meet up

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In reply to @jamesgrime

@jamesgrime what's its impact factor?

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I'm doing a suspicious amount of work on my day off. Might not get any lounging done before lunch at this rate.

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In reply to @aperfect

@aperfect ah, the old `/fov 150` trick

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Email, received today: "hello what is a computer i have lived these past dozen years in a swamp" (paraphrased)

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turns out I'm a trendsetter! We should all do four-day weeks, apparently theguardian.com/commentisfree/…

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In reply to @lyd_w

@lyd_w I always wonder how Americans can be so enthusiastic about bacon when they don't even eat real bacon

1 favourite 0 retweets

it's been a while since I unzipped a local copy of MathJax on windows. Takes about 40 minutes!

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In reply to @icecolbeveridge

@icecolbeveridge I had a similar problem this weekend! Except I have an octagonal bay window into which a hexagonal play pen will fit

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge the playpen is in the post - we'll see!

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Most unusual capitalisation of @NclNumbas yet: 'NUMBAs'. What could that stand for?

0 favourites 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy are you absolutely sure that it's *all* down to that?

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In reply to @standupmaths

@standupmaths my brother @aperfect has a photo (taken on my instigation), but maybe shouldn't be named in the book?

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In reply to @standupmaths

@standupmaths @aperfect haha, then I suggest "the least visually appealing of the Perfect brothers, Adam". He's in San Fran at the moment

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In reply to @standupmaths

@standupmaths @aperfect and the photo doesn't seem to be on his flickr page, so we'll have to wait for him to wake up!

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In reply to @ashleyhwright

@ashleyhwright I've been watching it with trepidation, but I've never had JISC funding so it doesn't affect me directly

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In reply to @ashleyhwright

@ashleyhwright indeed!

0 favourites 0 retweets

In reply to @kirel

@kirel Hooray! I hoped that sprite earlier meant you were working on detexify again. Feedback: drawing erratic on Android; hard to scroll

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In reply to @kirel

@kirel nexus 4. Seems to lose the touch event, maybe as results load. Scrolling hard because the drawing takes up most of the screen width

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In reply to @peterrowlett

@peterrowlett @MarcioRdeGMaia Erm.. yes. Why wouldn't it be? It's on his official YouTube channel

0 favourites 1 retweet

In reply to @outofthenorm2

@outofthenorm2 @peterrowlett @MarcioRdeGMaia thanks!

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In reply to @jjaron

@jjaron that's prompted me to do some fun searches on Hansard, e.g. theyworkforyou.com/search/?q=%22I…

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK if you find it interesting, it's fine

0 favourites 0 retweets

I've updated checkmyworking.com/misc/the-mathj… because the @MathJax CDN finally has the same URL for HTTP and HTTPS

1 favourite 4 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes, and I try to when you're near, but that isn't very often!

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In reply to @plusmathsorg

@plusmathsorg no, I do it too

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Twice this week I've received letters from companies telling me they're giving me a discount... on their newly doubled prices

1 favourite 0 retweets

Hooray! I'm paying lots more for the same service, but not as much as you've arbitrarily proclaimed I could pay!

0 favourites 0 retweets

In reply to @CardColm

@CardColm that book seems to be everywhere at the moment. It's high up the maths puzzle chart on amazon

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I missed 44444 so this'll have to do

2 favourites 0 retweets

Wait! Even better: now it's 3:33

2 favourites 1 retweet

In reply to @ChrisMaslanka

@ChrisMaslanka @hughhunt I'm interested in making someone do a big enough fart to get empirical data about this.

0 favourites 1 retweet

Interesting: a plane just dug a tunnel through a cloud. An inverse trail?

1 favourite 0 retweets

In reply to @gateslibraries

@GatesheadLibs @nclroblib apart from Quack Kerouac, no.

1 favourite 1 retweet

Waiting in a car park for my girlfriend and this guy decided to join me

3 favourites 0 retweets

Day 2: the cat is back!

2 favourites 0 retweets

Since I'm in a church against my will anyway, an idea: zero-knowledge protocol to allow querying prophecy without revealing what it says

0 favourites 1 retweet

In reply to @haggismaths

@haggismaths you might have a rogue @TweetsofCushing at your mathsjam tomorrow. Please make him feel welcome!

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I may or may not have written a javascript library called lissa.js just for the opportunity to say its name

1 favourite 1 retweet

So when's the post-ironic Quake 1 mod scene going to get going?

1 favourite 0 retweets

Just found this video on the @NCLMathsStats vimeo page: Prof Robin Johnson asks if the Angel of the North could fly vimeo.com/76605407

0 favourites 0 retweets

In reply to @WWMGT

@WWMGT That link didn't quite work because of the space. Try henkxvisser.nl/Three%20square…

0 favourites 0 retweets

Happy ﬨ approximation day!

1 favourite 1 retweet

In reply to @numberphile

@numberphile I just made one: is this what you had in mind? jsfiddle.net/vRWG8/embedded…

4 favourites 1 retweet

Off to @MathsJam. Will anyone else be there? Do mathmos take summer holidays?

0 favourites 1 retweet

In reply to @evelynjlamb

@evelynjlamb let dimensionsinfo.com help dimensionsinfo.com/egg-carton-dim… "because size matters"

0 favourites 2 retweets

My new favourite site: dimensionsinfo.com "because size matters"

2 favourites 2 retweets

Can you libel a black hole?

0 favourites 0 retweets

In reply to @andy_l_jones

@andyjonescs no, there's just @MathsJam, and the mailing list which sends reminders before each meeting. Email newcastle@mathsjam.com

0 favourites 0 retweets

Delivery company again a paradox of precision: my package will be delivered between 12:24 and 13:24.

1 favourite 0 retweets

In reply to @decaf_unicorn

@fumbleweeds ooh, my girlfriend was just asking if we could play the sims!

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime The Adventures of Young Alan Turing

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I had no idea so many people felt this strongly about Benedict Cumberbatch.

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime yes! There's often a lot more interesting stuff to talk about when you get past "here's why this is bad"

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In reply to @haggismaths

@haggismaths eugh.. I *still* haven't posted about this on the @aperiodical. Can I just say everyone's seen it now, and forget about it?

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime PS your review is very good and thanks for letting us publish it

0 favourites 0 retweets

Working on making it easier to change things like the logo in @NclNumbas tests... #genuinedevelopmentscreenshot

0 favourites 1 retweet

In reply to @jamesgrime

@jamesgrime I have not seen that review

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths ah yes, @TweetsofCushing said you weren't at mathsjam. Back to the fun maths coalface now?

0 favourites 0 retweets

Poppy the puppy is here! She is so beautiful and curly and good and we love her!

3 favourites 0 retweets

Zonked.

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths what book is that?

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @stecks I fixed that on Tuesday!

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts @jjsanderson that's more of a first-album title

0 favourites 0 retweets

OMG the puppy's toy is a dodecahedron. Six-coloured though. Does anyone have a five-coloured dodecahedral dog toy?

1 favourite 2 retweets

Dodecahedral dog toy update: it's already the subject of mathematical study! plus.google.com/u/0/+Christian…

1 favourite 1 retweet

Does anyone make a weather app that gives percentage probabilities of rain and confidence intervals?

2 favourites 0 retweets

Birthday present for my girlfriend: a ukulele so she can finally make use of her @helenarney songbook. It's a hit!

0 favourites 0 retweets

August

@katemath @LaMinda what would one of those look like, and what equipment would she have? Blackboard and oversized chalk to fit in her hand?

0 favourites 0 retweets

We're gonna need a bigger bowl.

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb well, Helen did. I was involved only in a support role

0 favourites 0 retweets

I just saw a bird of prey catch a tiny bird. The victim made pathetic noises as it was dangled about a foot above my head. #teamcarnivores

0 favourites 0 retweets

@Sara_Tindall Aww, oh dear!

0 favourites 0 retweets

This hexagonal daddy long legs loves his symmetry

4 favourites 4 retweets

In reply to @JanvierUK

@JanvierUK m&s do good ones

0 favourites 0 retweets

In reply to @semiBad

@semiBad I use w3totalcache, but made that decision about three years ago

0 favourites 0 retweets

Very pleasing.

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In reply to @ColinTheMathmo

@ColinTheMathmo I've just registered and paid!

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths is that S the right way round?

0 favourites 0 retweets

I'm helping at this! MT @NCLScienceComic: Our free infographics workshop (age 14+) is on Saturday @ToonLibraries

0 favourites 2 retweets

Look at the time we paused the DVD on!

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In reply to @hughhunt

@hughhunt Normandy has some of the weirdest pizzas I've ever eaten. I once had one with FOUR steak haché on top

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Thompson's group F is currently not amenable arxiv.org/abs/1408.2188

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In reply to @aperiodical

@aperiodical @stecks is the auto-tweet still not working? I redid the connections

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Come join me by the fire. #unnervinglylouchepuppy

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In reply to @evelynjlamb

@evelynjlamb I have the same thing with "amenable"

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In reply to @robinhouston

@robinhouston *shocked face*

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Suppose I'd better tell twitter - I'm engaged! (hand belongs to my betrothed)

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In reply to @ben_nuttall

@ben_nuttall Ted's Montana Grill on Larimer St (next to Euclid Hall!) is very good

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Cor, I've made a lot of birthday cards over the years flickr.com/photos/christi…

1 favourite 1 retweet

In reply to @JanvierUK

@JanvierUK thanks!

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My favourite party trick that never works MT @numberphile: Wobbly table not a problem for mathematicians — youtu.be/OuF-WB7mD6k

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In reply to @numberphile

@numberphile I'm not too great at applying the intermediate value theorem by eye

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In reply to @christianp

@numberphile +you normally want to apply it after everyone's sat down, which means they all need to shuffle round. Haven't watched the video

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In reply to @numberphile

@numberphile well, I've watched it but with no sound because I'm at work. It *looks* good :)

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.gitignore, ignore thyself

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Newcastle @MathsJam is TONIGHT, 7pm at the Charles Grey. Look out for the Rubik's cube. Find your closest Jam: mathsjam.com/closest-mathsj…

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Theorem statement looks like a line from a bad song

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The new version of knockout.js has custom elements. Here's one to do a tex input with @MathJax preview codepen.io/christianp/pen…

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In reply to @Bishnavitch

@Bishnavitch maybe: prions can't be killed by cooking, and thrive in the brain. Some think eating brains is what killed the neanderthals

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In reply to @Bishnavitch

@Bishnavitch (I assume you're eating human brains. Because otherwise you're totally fine)

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In reply to @peterrowlett

@peterrowlett @stecks @aPaulTaylor there's an ongoing email discussion. I'm going to set up the redirect today

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In reply to @peterrowlett

@peterrowlett @stecks @aPaulTaylor (turns out I'm not clever enough to set up the redirect and override wordpress's nonsense)

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In reply to @C_J_Smith

@C_J_Smith would you say this is the whole equation? checkmyworking.com/misc/makebigma…

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In reply to @C_J_Smith

@C_J_Smith supplementary beard-stroker question: which gives a lower bound for the date of burial, the equation or the quote?

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@AndresCaicedo you have to wonder what such people *think* they're doing.

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.nothing-here:before {
content: 'This space intentionally left blank';
}

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Step 1

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Step 2

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Looks like today's the day I finally learn how LR parsers work

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Hmm... which comment to approve?

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(context of the previous: the ongoing "I'm (x<18) years old and I don't understand" saga underneath aperiodical.com/2014/03/how-to…)

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In reply to @C_J_Smith

@C_J_Smith my favourite is the "English *is* consistent" guy

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In reply to @eassessscotland

@eassessscotland which Zimmermann? (sorry)

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Here's a new God's Number alternative: least complex set of instructions to perform a Hamiltonian cycle on a Rubik's cube

1 favourite 1 retweet

As a starter, you'd be doing well to produce something less than cuBer Bruce's 200mb of instructions: bruce.cubing.net/ham333/rubikha…

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In reply to @helenarney

@helenarney @FitzMuseum_UK @whereiscampsite for all in tents, and porpoises?

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In reply to @peterrowlett

@peterrowlett @stecks yerp

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In reply to @evelynjlamb

@evelynjlamb related is that AMS Notices cover with the deliberately-wrong 3/4/5 triangle made of pebbles

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I am currently banned from using the AMS's mathematical imagery site?! ams.org/mathimagery/di…

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In reply to @evelynjlamb

@evelynjlamb finally found it! It wasn't the Notices, it was the College Mathematical Journal mathtourist.blogspot.co.uk/2009/02/ponder…

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Here's a nice puzzle I thought up while in M&S: is there any base where "1248" is a power of 2?

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Huge changes to the closest @MathsJam map with the addition of Taipei MathsJam mathsjam.com/closest-mathsj…

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(if anyone wants to make a correct, spherical voronoi version of that map, please do!)

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@MARitchings correct!

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p5.js is very similar to the old Blitz languages, so I'm converting over some of my old things for fun somethingorotherwhatever.com/swirlograph/

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@MARitchings no, just came up with the question :)

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In reply to @haggismaths

@haggismaths gosh! I wish @NCLMathsStats paid as much attention to the interior decor of the maths department

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In reply to @Gopesh_Krishna

@Gopesh_Krishna @MARitchings in base b, 1248 = 1*b^3+2*b^2+4*b+8 = (b+2)(b^2+4). If that's a power of 2, then each factor must be also.

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In reply to @Gopesh_Krishna

@Gopesh_Krishna @MARitchings yes, what's wrong?

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In reply to @evelynjlamb

@evelynjlamb certain parties abused our free pads of paper policy and now each student gets issued one pad at the start of the year :(

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In reply to @ben_nuttall

@ben_nuttall all the names up to 2010 sound like things you should consult your doctor about before using

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September

In reply to @robeastaway

@robeastaway arg! What's the point in long division?

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In reply to @theoremoftheday

@theoremoftheday I learnt poly div having never known long division, and I find it way simpler. Long division needs lots of lookahead

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In reply to @theoremoftheday

@theoremoftheday @robeastaway (I mean, I was shown traditional long division in primary, but I did what I think is 'chunking' instead)

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In reply to @ColinTheMathmo

@ColinTheMathmo @robeastaway @theoremoftheday for me, it often boils down to "divide 3-digit number by 2-digit number, but in your head"

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In reply to @ColinTheMathmo

@ColinTheMathmo better medium: google+?

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Formula for the perfect pizza cheese, non-nonsense edition: youtube.com/watch?v=AZOSTI…

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This time I got as far as the "contribute a new sequence" page before realising my sequence was already in but off-by-one. #mathmoproblems

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Matemáticos sudamericanos, matemáticos da América do Sul: there isn't a @MathsJam anywhere in South America. Sort it out!

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In reply to @ruimvieira

@ruimvieira hah, that's great!

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In reply to @eassessscotland

@eassessscotland did you pass on participant emails to your sponsors? Your registration form doesn't say you will

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In reply to @standupmaths

@standupmaths if you wanted a number around 3000, why not pick 3435? Or any of the other numbers on this page: mrob.com/pub/math/numbe…

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Best part of waiting for a lift near a hospital: overhearing gnarly phone conversations as sick people walk past

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SpringerLink still thinks my university is called "University of Newcastle upon Tyne". If you've already added value once, why add it again?

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In reply to @plusmathsorg

@plusmathsorg @alexbellos ooh, only £10? I think I'll buy myself a copy

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"No animals were harmed in the making of this site" in the footer of the site of a restaurant which serves meat.

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb it's the most useful list I've ever kept. Constantly referring to it.

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Wow. Bold move to quote the film 'Network' in an advert selling furniture.

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Legroom! Glorious, only-moderately-restricted legroom!

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On the side of a derelict warehouse: "Dove Building Centre". I don't think doves are very good at building.

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In reply to @haggismaths

@haggismaths crikey!

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There's a second series of Jigsaw?! bbc.co.uk/programmes/b04…

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Wedding venue has "very limited availability for 2013". No kidding.

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Shop offering help to citizens of new EU states in Edinburgh has a Yes poster in its window. Not sure what their long-term business plan is

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What are these mysterious bee images I see in the @aperiodical's media library. Could it be true? Is @outofthenorm2 finishing his bees post?

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Instant embedding of videos in the new wordpress editor is the best thing.

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In reply to @mike_geogebra

@mike_geogebra is geogebra 5 the "official" latest geoebra? The main download page still gives you 4.4

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In reply to @outofthenorm2

@outofthenorm2 oh alright. Sorry, I'll let you get on.

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In reply to @stecks

@stecks I had gripes about the lack of links, and then I forgot all about it

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Why did I just work out 17^2 = 16^2+16+17 instead of 17^2 = 10*17+10*7+7*7?

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(It's true, I'm shaky on squares above 15^2)

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In reply to @theoremoftheday

@theoremoftheday thanks - I've updated a post with a link to your theorem of the day about it. Always handy!

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In reply to @CCMathResources

@CCMathResources MathsJam isn't really a schools thing, so I don't think it's useful to use the hashtag for your links

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In reply to @BrainyMisc

@BrainyMisc @CCMathResources #mathsjam is related to @MathsJam, the monthly maths-in-a-pub meeting. Deliberately nothing to do with schools.

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In reply to @lyd_w

@lyd_w @MrGrahamPearce oh my god, our school motto of "Ewige Blumenkraft" suddenly makes a lot of sense!

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In reply to @icecolbeveridge

@icecolbeveridge you'd have to inset a compass as well, wouldn't you?

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In reply to @Bishnavitch

@Bishnavitch wow, so it's finally gone through? Congratulations!

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Worst. Shisen sho. Ever.

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checkmyworking.com is knacked for the moment. Poo.

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So the A1's never going to be dualled, then.

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Now that really is pushing it "@InterestingNums: 214 is interesting. There are 214 divisors in the 11th perfect number."

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I've updated my @MathJax bookmarklet to use the new CDN address checkmyworking.com/misc/mathjax-b…

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In reply to @tim_hunt

@tim_hunt ahhhh, I forgot to set a reminder! Poo

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I've just found there's a .xyz TLD. That's the least justifiable new TLD yet

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Starting to get into getvau.lt for making up stronger passwords. I just have to remember the settings for each site...

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(of course, my passwords become just as hackable as before to someone who knows I use it, but hopefully that's a small subset of hackers)

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In reply to @evelynjlamb

@evelynjlamb excellent explanation in "How to explain zero knowledge protocols to your children" pages.cs.wisc.edu/~mkowalcz/628.…

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In reply to @peterrowlett

@peterrowlett @mathsarcade I just did the same thing but I didn't find the induction talk guy in time so none of the freshers knew about it!

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In reply to @samholloway

@samholloway once, it meant "Let's meet at Costa".

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In reply to @tim_hunt

@tim_hunt super! And Moodle is the top (not necessarily main) VLE in use. That's why you open source things!

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In reply to @CardColm

@CardColm @MathsJam @aperiodical and Ireland's Colm Mulcahy, also of @aperiodical fame

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I got to level 33 in this silly colour game! For once, not having working colour vision pays off! game.ioxapp.com/color/

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prisencolinensinainciusol in an advert! Ollraight!

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Chalky mouse friends! thisiscolossal.com/2014/09/david-…

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In reply to @samholloway

@samholloway will the bus between two of them be the McCartney-Lennon route, or Lennon-McCartney?

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Auuggg week 1 of term is just non-stop emailing and bugfixing and meeting. Can we do a staggered start next year?

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PDF contains very long URLs split over a couple of lines but they aren't clickable. Useful for neither screen nor print. Bah humbug.

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I'm doing another "games to entertain a commutative mathematician" post. Got a favourite maths game you play on your phone? Please tell me!

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Contents of my desk-side bin: ostrich egg (smashed); ring of hair pulled from brush; sundry nail clippings. #readysteadycook

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In reply to @evelynjlamb

@evelynjlamb @MathJax only self-hosted blogs through wordpress.org.

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In reply to @robinhouston

@robinhouston given where he lives, I was thinking more of a Cathar

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In reply to @robinhouston

@robinhouston I was just doing the same search! Search-by-image has fun results: google.com/search?sa=X&hl…

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In reply to @icecolbeveridge

@icecolbeveridge there's a pi with no \ in front of it in the second para

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In reply to @j_lanier

@j_lanier that liquid binary counter is so cool!

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In reply to @aperfect

@aperfect are they charging the pavement for their time, and adding unusable interfaces to pedestrian crossings?

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In reply to @peterrowlett

@peterrowlett ahh boo. I thought I'd copied everything! Won't be a moment...

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In reply to @peterrowlett

@peterrowlett restored!

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Picked a question at random from our DB to test its discrimination index. It's 0.93. Crikey. Now to find a low one!

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October

In reply to @JanvierUK

@JanvierUK whaaa? Seriously? Because you have two passports? You're twice as British as I'll ever be

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Finally, my product-moment correlation coefficients make sense! These questions are very discriminating

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In reply to @NCLMathsStats

@NCLMathsStats The Maths Arcade runs every Tuesday lunchtime in the Herschel building foyer

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Here's an isomorphism between the Set cards and a Sudoku cameroncounts.wordpress.com/2014/09/30/pic…

6 favourites 7 retweets

I wish javascript had keyword arguments. Then I could add an optional argument to this function without breaking everybody's everything

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@katemath what if I can't overcome my prejudices about really old webpages?

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In reply to @tim_hunt

@tim_hunt yeah, but that involves a line of debaggage at the start of each function

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In reply to @lyd_w

@lyd_w no matter what band it's for, that director always does the same quick-cuts-naked-ladies-plus-weird-stuff video

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Do you think flies have nightmares about eating so much they can't take off? This one is nearly there.

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In reply to @jjsanderson

@jjsanderson I have used that many times when giving presentations on strange uni computers

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In reply to @jjsanderson

@jjsanderson deck.js - I have a template on github at github.com/christianp/dec…

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It's good to see this, but I feel bad for the bad things I had to do to maths to get there. #sloanewhacking

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In reply to @DameAllans

@DameAllans I just got an email asking for volunteers to talk to RGS's new maths society. As a DABS alumnus, I couldn't possibly!

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Just told @TweetsofCushing to "give maths not blood". Not quite as punchy as "make love not war".

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In reply to @stecks

@stecks @TweetsofCushing it happens at the same time as Maths Arcade

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In reply to @stecks

@stecks @TweetsofCushing I assume he has like an appointment or something

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In reply to @FOTSN

@FOTSN interesting date order on that page. Sorted by month?

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In reply to @standupmaths

@standupmaths @FOTSN or by venue name. You should do some gigs at Aarhus Atletion (capacity 20,032)

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Oh man, I let my fourth super-birthday go uncelebrated! oeis.org/A184552 (well, un-super-celebrated)

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths @Dr_JAH my enthusiasm for this project is unmeasurable

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mathpuzzle.com has updated!

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I'm not a complete doofus! Just solved this junior olympiad problem on @beyondmathsolns fairly quickly beyondmathsolutions.wordpress.com/2014/10/08/201…

0 favourites 1 retweet

In reply to @JPickford

@JPickford no - things fall at the same rate no matter what their mass is. youtube.com/watch?v=5C5_dO…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge boo. Booooo.

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In reply to @knotunknot

@MadeleineS Pergamon museum!

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In reply to @libraryncl

@nclroblib whaaaat?! I need to start looking at the sage's programme more often

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Wedding booked! Eek!

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In reply to @JanvierUK

@JanvierUK Middle of the school Easter holiday, since my fiancée is a teacher

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In reply to @pelagikat

@hornmaths (small value)^(-large value) will be a very *large* value

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In reply to @pelagikat

@hornmaths Yeah. Write more.

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In reply to @MathJax

@MathJax could mathjax.org/latest.zip point to the latest release?

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I've finally got WeBWorK running in a VM. What a massive faff!

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In reply to @MathJax

@MathJax convenience when I just want "some mathjax". Like wordpress.org/latest.zip gets me the latest wordpress

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In reply to @samholloway

@samholloway an Alfa Romeo mechanic, yesterday: wired.com/2013/09/absurd…

1 favourite 1 retweet

In reply to @MathJax

@MathJax it works! Thanks!

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In reply to @eqdynamics

@eqdynamics probably no quicker than me - it just requires a lot of pasting command line stuff because there's no install script

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In reply to @michaeljgrove

@michaeljgrove @k_houston_math Allen knutson wondered the same thing on google+ this week: plus.google.com/11046487180196…

1 favourite 1 retweet

In reply to @tim_hunt

@tim_hunt that's why I've dragged my feet on adaptive marking in Numbas - why bother, when you can give immediate feedback and try again?

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In reply to @ColinTheMathmo

@ColinTheMathmo @Samuel_Hansen it hasn't for me - I suspect you have a man-in-the-middle!

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In reply to @standupmaths

@standupmaths Dim fun = 0

1 favourite 0 retweets

Just made a git commit whose hash starts '4444'. I wonder if I can search github for a commit with five repeated characters

0 favourites 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor it often seems that headline-writing rules exist in an amoral vacuum

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In reply to @ben_nuttall

@ben_nuttall have you got a commit with that hash?!

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I know I say a lot of bad things about Moodle's SCORM module, but surely this was never a good way of doing things? github.com/moodle/moodle/…

0 favourites 0 retweets

In reply to @samholloway

@samholloway was it youtube.com/watch?v=Jj6yXx… ?

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths STACK only works inside moodle these days. But if you want a competition, I make another system: @NclNumbas

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths Numbas doesn't need anything installed, so should work

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths ... but STACK is perfectly adequate, so try both!

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The heating in my office doesn't come on in the morning, when it's cold, but makes up for that with turboheating in the afternoon. Boo.

0 favourites 0 retweets

In reply to @benjamintormey

@BenTormey no! You can't be 30 yet! That means I'll be 30 too some day!

1 favourite 0 retweets

In reply to @helenarney

@helenarney your page has made an error establishing a database connection. Suggest a book on computer etiquette.

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In reply to @helenarney

@helenarney it just said "error establishing a database connection". It's working now

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The dog is wet and cold. #keswick

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Ceiling beam is suffering from vertigo

1 favourite 1 retweet

In reply to @haggismaths

@haggismaths after a house move and office move, I no longer have access to any blackboards :(

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @ColinTheMathmo yeah! Suits me, because I haven't really had time to prepare my talk this year

0 favourites 0 retweets

In reply to @scienceatlife

@scienceatlife where Pumpkin > 1, because the cross-section isn't perfectly circular

1 favourite 1 retweet

The dog is dressed as a spoOoOoOoky traffic warden. (and keeps trotting out after trick-or-treating kids)

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November

We're at 3 for 3 talks overrunning their time so far. #mathsjam

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Wahey! @NoelAnn finished on time #mathsjam

1 favourite 0 retweets

Macs are terrible at projecting. #mathsjam

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I spent about ÷5 of my #MathsJam talk starting a teeny tiny revolution

2 favourites 6 retweets

In reply to @tombutton

@tombutton @SparksMaths oh boo to that! Boo!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge and what about the Last of the Summer Wine character painted by an Old Master? I'm talking about the Compo Titian

0 favourites 1 retweet

The prize for my "most interesting fact about the number 1426" #mathsjam competition: a stretchy man!

1 favourite 1 retweet

In reply to @Kexie_

@Kex92 @MathsJam not my handwriting!

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It's 10:24! Binary dance party! #mathsjam

1 favourite 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin @MathsJam no, exactly the point I made! "-3" means "negate 3". Or, "additive identity minus 3".

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ajk_44 @KathrynHTaylor I only counted three women: Katie, Alison and Noel-Ann. Who did I miss?

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In reply to @drbhind

@drbhind @peterrowlett @ajk_44 @KathrynHTaylor @haggismaths ah yes! She isn't on the website because she only offered her talk on the day

0 favourites 0 retweets

In reply to @nikoletta_tk

@nikoletta_tk I've been told you have a "better" solution to the princess in a castle puzzle. Very intrigued!

0 favourites 0 retweets

In reply to @drbhind

@drbhind @ajk_44 @pozorvlak you're more than welcome on the @aperiodical :)

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 I'm coping with chocolate

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On the side of a van: "We've got the sandwich market wrapped up!" But their screw factory is under the hammer.

1 favourite 0 retweets

In reply to @DanielColquitt

@DanielColquitt is it worth giving @writelatex a go? Or do you want it to work offline?

1 favourite 0 retweets

Hey @MyMathLab, your website's broken.

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I keep seeing adverts for jobs basically equivalent to mine, but paying way more. Boo hoo hoo.

0 favourites 0 retweets

In reply to @PearsonSupport

@PearsonSupport this page: pearsonmylabandmastering.com/northamerica/m… I've never been to the site before today. Your javascript is broken.

0 favourites 1 retweet

In reply to @FOTSN

@FOTSN wot no SCI HARD 4.0 (TO 1DP.)?

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In reply to @FOTSN

@FOTSN I just hope you can make a t-shirt big enough to cover my, to quote @standupmaths, "ridiculous shape".

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In reply to @FOTSN

@FOTSN @standupmaths in that case I demand one made from alpaca wool (but not from the Penrith Alpaca Centre)

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In reply to @FOTSN

@FOTSN but there was a bit where a fighter jet does a doughnut around a motorway overpass and maybe you could put that in your next show

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In reply to @drbhind

@drbhind super! You've already got an account, haven't you?

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It's 12:46! Thanks to the #mathsjam attendees for giving me a reason to celebrate it.

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My favourite non-maths 1246 fact: it's the country code for Barbados.

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In reply to @DrSMJames

@sam_james30 how many? How many maths?

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Wanted: something like git's merge algorithm, but on JSON objects.

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In reply to @haggismaths

@haggismaths well, 10 is less than 14 so maybe 10^10^10 isn't that far off

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Hah, underneath the ISBN in @standupmaths's book is the checksum.

7 favourites 8 retweets

Chocolate Copernicus! Chocpernicus! themathematicaltourist.wordpress.com/2014/11/03/fin…

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In reply to @alexbellos

@alexbellos have you seen jeff560.tripod.com/stamps.html ? Mentioned in one of my @aperiodical round ups: aperiodical.com/2012/09/aperio…

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In reply to @icecolbeveridge

@icecolbeveridge nope... you haven't got ASCIIMathML input turned on, have you?

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In reply to @peterrowlett

@peterrowlett yeah, I have done, but the decision about how much I'm paid is made many levels up

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In reply to @icecolbeveridge

@icecolbeveridge can you show me the page?

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In reply to @icecolbeveridge

@icecolbeveridge that's a unicode times symbol in the source, not an x.

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In reply to @icecolbeveridge

@icecolbeveridge markdown? Got any plugins that filter post content?

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In reply to @Statsyman

@Statsyman have a look through my Newcastle @MathsJam recaps checkmyworking.com/category/maths…

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In reply to @haggismaths

@haggismaths or make the appropriate substitutions in this: snltranscripts.jt.org/90/90mhappyfun…

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In reply to @TweetsofCushing

@TweetsofCushing !!!

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In reply to @wstein389

@wstein389 crikey!

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In reply to @standupmaths

@standupmaths where is Hardcove R? And what's available in Hardcoves A-Q?

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In reply to @TweetsofCushing

@TweetsofCushing I've told her about mathsjam. Maybe she'll come and have an epic puzzle battle with Ji

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In reply to @stecks

@stecks @aPaulTaylor I made the Braille words thing like a million times faster: gist.github.com/christianp/6bb…

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In reply to @Andrew_Taylor

@Andrew_Taylor wow! That's a new one: took an existing, non-PR bit of research, and turned it into a nonsense formula piece.

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In reply to @JanvierUK

@JanvierUK even me? Boo.

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In reply to @hnodrog

@hnodrog ahhh, disaster!

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In reply to @samholloway

@samholloway isn't it an abbreviation of the name of one of the nearby villages?

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In reply to @satoverma

@satoverma @evelynjlamb 1,000,000,000,000 en.m.wikipedia.org/wiki/E_%28math…

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In reply to @samholloway

@samholloway @ajk_44 @stecks *ahem*! Not everybody

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In reply to @alisonkiddle

@ajk_44 @samholloway fortunately, there's a comprehensive troubleshooting section in my operator's manual

1 favourite 0 retweets

Reasons the table in Blackboard Grade Centre doesn't scroll with the mousewheel:

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However bad I feel about Moodle's SCORM support, whenever someone asks me about Blackboard I remember it can be much worse

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In reply to @CounterOfSheep

@ajkiddle the uni sent a workplace stress questionnaire round. I took one look at it and ran away.

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Second email about Blackboard's terrible SCORM support today. Boo.

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In reply to @CounterOfSheep

@ajkiddle exactly!

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I know I'm uncoordinated, but it's pretty bad when Eldon Garden starts putting out warning signs just for me

1 favourite 0 retweets

In reply to @samholloway

@samholloway I think ones that can be pronounced get de-capitalised.

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In reply to @samholloway

@samholloway I bet he's coming up for the hipster food thing this weekend

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In reply to @alexbellos

@alexbellos slightly odd request: do you have a link to the video of that time you demoed the cake division problem on Brazilian TV?

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Sold the dog a meta-dummy: faked throwing the ball so many times that when I did throw it, she refused to believe it and looked in my hand

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In reply to @alexbellos

@alexbellos my line of thought was "fair division problems are hard... didn't Alex Bellos tweet a video of him doing bad things to a cake?"

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In reply to @Beamish_Museum

@Beamish_Museum worked it out on my correntator. Easy!

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In reply to @evelynjlamb

@evelynjlamb I liked Godtoddler's debut album, but their recent work has been quite derivative

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In reply to @evelynjlamb

@evelynjlamb you weren't exaggerating! That's the widest tie I've ever seen

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Oops. RT @l_incompletude: 0 = Math.PI-Math.PI #collaborative #art #maths

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In reply to @l_incompletude

@l_incompletude your code to verify formulas has a lot of bugs. I can help, if you'd like

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The current oeis.org logo is a bit bum

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In reply to @l_incompletude

@l_incompletude I've made one myself (github.com/numbas/LissaJS), but that's overkill. You could just strip out everything except +-/* and 0-9

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In reply to @stecks

@stecks web.archive.org/web/2014102502…

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There's nothing like writing an arithmetic parser to relax your mind: codepen.io/christianp/pen…

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In reply to @BruceGrembowski

@BruceGrembowski ehh, it's a very simple grammar.

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Crikey, guest posts by three different authors waiting in the @aperiodical post queue! What a delight!

2 favourites 1 retweet

The Imitation Game was REALLY good!

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In reply to @pelagikat

@hornmaths They Need To Talk About Kevin

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In reply to @drbhind

@drbhind @jamesgrime @aperiodical spoiler warning: Alan Turing is actually Benedict Cumberbatch in a costume

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In reply to @ColinTheMathmo

@ColinTheMathmo @StanMaths @aap03102 looking for shortcuts is one of the most satisfying parts of maths. Problem is if it goes wrong

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge I define "going wrong" as "you got the wrong conclusion and didn't notice"

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Guess which Russell Group university's IP addresses have been banned from the arXiv again

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A case of overpowering intuition: when you can't bear to colour your dots "white" and "black". fr.arxiv.org/pdf/math/06057…

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November's Newcastle @MathsJam is tomorrow, 7pm at the Charles Grey pub. All welcome, bring a brain. mathsjam.com/index.php?city…

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In reply to @mrob_27

@mrob_27 you have a very intelligent die

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In reply to @evelynjlamb

@evelynjlamb would "50 hours" be more or less precise?

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In reply to @evelynjlamb

@evelynjlamb I too have nearly done that many a time. See also: cumulonumbers

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Oh lor'. My Wordpress cookie expired, but it let me log in again and reassured me I didn't need to leave the page. LIES! ALL IS LOST!

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In reply to @brittneybean

@brittneybean lord that's an ugly house

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In reply to @standupmaths

@standupmaths @MouldS @stecks is "Make your festive party go with a factorial!" a joke about the name of the punctuation mark? Boo!

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In reply to @Andrew_Taylor

@Andrew_Taylor @stecks this solution lets you revoke one of the keys

2 favourites 0 retweets

In reply to @stecks

@stecks @Andrew_Taylor I think the picture-hanging puzzle has an application here

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In reply to @icecolbeveridge

@icecolbeveridge some latex problems just before "ask a computer"

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It would be nice if amionstrike.com existed and said "YES" when UCU are doing something. Their emails are hard to read!

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arg, wordpress is mangling my minus signs. Is this a v4.0 thing?

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In reply to @elinoroberts

@elinoroberts you know what, I'd watch a movie with that dude doing science demos

1 favourite 0 retweets

In reply to @elinoroberts

@elinoroberts unsure if there's a smiley for a sufficiently knowing wink

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In reply to @jgrahamc

@jgrahamc you might enjoy @jamesgrime's Imitation Game FAQs aperiodical.com/2014/11/an-ala…

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In reply to @JanvierUK

@JanvierUK no, the cool kids don't use the spoken word any more. So second millennium

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In reply to @stecks

@stecks arggggggg!

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In reply to @jjsanderson

@jjsanderson you're disturbing the geological record! I hope everything you uncover is tagged and recorded

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK radio 4 iplayer?

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In reply to @stecks

@stecks I dunno, I probably made a mistake. Drawing with your finger is hard

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In reply to @stecks

@stecks no, R7

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In reply to @miclugo

@madcaptenor I once encountered someone who not only thought "APP" was an acronym, but one that shouldn't be pluralised with an s

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These sheet music covers arevreally nice beautifulcentury.tumblr.com/post/102761276…

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I'm pretty chuffed with this birthday card

4 favourites 1 retweet

In reply to @badmachinery

@badmachinery a Newcastle bus route claims that since it offers free wifi, you can "surf into the heart of the city"

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I've just discovered puzzling.stackexchange.com. Looks like a goldmine for #mathsjam!

3 favourites 4 retweets

Today in maths: pack a Large Parcel (according to the Royal Mail) in a larger box so it becomes a Small Parcel aperiodical.com/2014/11/appare…

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For some reason, this is the angriest a pricing scheme has yet made me. I think it's the arbitrariness of the prices

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And who's going to "rent" a paper for only 48 hours? $6 for something you already don't believe you'll need to refer to later on?

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In reply to @PumphreysMath

@PumphreysMath @nrichmaths this piece by @CardColm a while ago is a bit more advanced but on the same subject aperiodical.com/2012/05/in-wha…

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Guess which Russell Group university's IP addresses are *still* banned from the arXiv...

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I noticed that Chrome blocks userscripts now so I've turned my "Everyone's a mathematician" script into a bookmarklet aperiodical.com/2014/03/everyo…

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(it does beautiful things, like this)

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In reply to @gingerbeardman

@gingerbeardman because I didn't know about that!

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In reply to @icecolbeveridge

@icecolbeveridge because I missed the accented z off my list. I'd already noticed and fixed it :)

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Because @icecolbeveridge complained, I've added EVERY POSSIBLE ACCENTED CHARACTER to the bookmark. gist.github.com/christianp/781…

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In reply to @gingerbeardman

@gingerbeardman thanks though - I had a couple of userscripts for dealing with a particularly terrible system at work

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In reply to @stecks

@stecks @icecolbeveridge no, I fixed it for him too. And anyone with "of" in their name

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Here's a @Raspberry_Pi robotics idea: robot arm equipped with a compass and straight-edge, combined with CV to detect intersections

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In reply to @stecks

@stecks @evelynjlamb @aPaulTaylor that pun is a crime under the Misuse of Erudition Act 1967

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current test user name: Teston Blumenthal

2 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @stecks @evelynjlamb I dunno, I think my girlfriend would prefer a RING. #igotnothin

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I did some Python (gist.github.com/christianp/aae…) to solve this @nrichmaths puzzle (after doing it by hand first): nrich.maths.org/1138

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Help help my dog is the reincarnation of Colonel Sanders

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Oh my god, this parametric bum surface is *sublime* mathematica.stackexchange.com/questions/6653…

3 favourites 2 retweets

@Sara_Tindall there's no way of thumbing your nose at Neptune more effectively than throwing away tonnes of fresh water out at sea

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Hooray for Bex! Best maths pun of 2014, I'm calling it now! RT @debecca: My improper fractions helpline is now open 24/7.

6 favourites 12 retweets

I need to go to Figueres mateturismo.wordpress.com/2014/11/17/maq…

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In reply to @michaeljgrove

@michaeljgrove @SamLP @UoBSTEM_EC any chance the chemistry examples will make their way onto the maths support wiki?

1 favourite 0 retweets

Whyyyyyyy?! For a brief while, East Coast was a tolerable way of getting around m.bbc.co.uk/news/business-…

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In reply to @semiBad

@semiBad that's the best description of MGS I've ever read

0 favourites 0 retweets

In reply to @kenfodder

@kenfodder crikey, time *does* fly! But hopefully not your baby

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In reply to @mjdominus

@mjdominus @stecks @aperiodical that's some poor copy-editing by me, I'm afraid! I'll fix it

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In reply to @DrSMJames

@sam_james30 have you seen this? youtube.com/watch?v=dBtYXF…

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December

In reply to @haggismaths

@haggismaths you mean you're on a bus-replacement train service?

1 favourite 2 retweets

In reply to @tarim8

@tarim8 @ColinTheMathmo @joindiaspora I've considered setting up a diaspora site for these kinds of conversations

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In reply to @ColinTheMathmo

@ColinTheMathmo @tarim8 @joindiaspora @samholloway mine too! That's why I haven't done it yet

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In reply to @tarim8

@tarim8 @ColinTheMathmo @joindiaspora @samholloway I'm sure it's possible, but the resulting tweets would be unreadable.

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In reply to @tarim8

@tarim8 @ColinTheMathmo @joindiaspora @samholloway anyway, the problem is getting people to write stuff on the diaspora site

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In reply to @ColinTheMathmo

@ColinTheMathmo hah, fun! GraphViz plus a list of URLs? Quite hard to read.

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In reply to @haggismaths

@haggismaths but on the other hand, as an autistic person I really appreciated how sympathetic the portrayal was

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In reply to @FOTSN

@FOTSN oh, bravo!

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In reply to @FOTSN

@FOTSN but that matrix definitely doesn't do a rotation

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In reply to @FOTSN

@FOTSN that pun really SCALES new heights

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I'm eating the world's most fertile satsuma. Already in double digits of seeds, now worrying about triple digits.

0 favourites 0 retweets

In reply to @WWMGT

@WWMGT what does "folded" mean?

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In reply to @ChrisMaslanka

@ChrisMaslanka @WWMGT yeah, but folded all on top of each other, or will a single fold do?

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@katemath I got hooked on Simon Tatham's version with a cairo tiling for a good few years chiark.greenend.org.uk/~sgtatham/puzz…

1 favourite 1 retweet

I'm having a lovely time with C++11. Maybe I can be a real programmer after all!

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So cute RT @aperiodical: It’s bunnies all the way down – GeoBunnies reveals geometry’s hidden rabbits aperiodical.com/?p=12982

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In reply to @CounterOfSheep

@ajkiddle what tosh! Work is depression's friend

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Got fed up and switched my phone's calculator to RPN. Let's see how that goes.

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In reply to @Samuel_Hansen

@Samuel_Hansen bananagrams!

0 favourites 0 retweets

In reply to @gary__thomson

@garyth123 yes thanks!

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib I'm informed there was a Frozen singalong somewhere

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This is a pretty cool dice-rolling thingy! images.math.cnrs.fr/Comment-lancer…

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@HeyCwiss ah, you're watching it too! We switched on halfway in, and I can't remember how he got separated from his family this time

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For Boole's 150th death-day: how many boolean operations has my computer performed since I bought it, about a month ago?

1 favourite 0 retweets

Bad news, blackboard connoisseurs: the maker of the world's best chalk is stopping production in February wsj.com/articles/BL-JR…

0 favourites 1 retweet

In reply to @CardColm

@CardColm I saw a Spanish company a while ago, I think. Should be OK, with the common market and all that?

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In reply to @christianp

@CardColm never mind, it was this I was thinking of, and most def not aperiodic! notcot.com/archives/2012/…

0 favourites 1 retweet

In reply to @CardColm

@CardColm there is a lobby somewhere with custom-made Penrose tiled floor. I think @standupmaths knows where it is

0 favourites 0 retweets

In reply to @hughster

@hughster @deboracreative @WhovianNet @aperiodical to be precise, they have sixfold symmetry. But daleks probably know a way round that

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In reply to @libraryncl

@nclroblib really? I didn't see it over here at the Herschel building

0 favourites 0 retweets

In reply to @stecks

@stecks @markstaylor what's this about an anus?

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In reply to @stecks

@stecks @markstaylor puzzlebum?

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @qipodcast it's in free fall. It definitely has a weight

1 favourite 0 retweets

Oh my god I've found the BEST SWISS MUSIC VIDEO EVER! youtube.com/watch?v=nbfZ49…

1 favourite 0 retweets

In reply to @scienceatlife

@scienceatlife which way do the needles drop?

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In reply to @GreyAlien

@GreyAlien my fiancée is a nursery teacher. My life can be divided into "got a cold" and "about to get a cold"

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett you should! It's in the aperiodical google drive folder thingy

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths @JaneCo94 I thought he was made to tell the spy chap which things to give to the not-a-Glaswegian Downton Abbey chap

0 favourites 0 retweets

In reply to @LDN_gov

@LDN_gov odd request: can you give me an estimate of the number of baubles and length of lights used on the christmas tree in Trafalgar Sq?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @mathsarcade Hooray! I've been meaning to make some information sheets for my arcade

0 favourites 0 retweets

In reply to @CardColm

@CardColm will this do? christianp.github.io/wordsearch-gen… Either print it out after editing, or it generates LaTeX and HTML.

0 favourites 0 retweets

In reply to @CardColm

@CardColm a visit would be great! What dates are you nearby?

0 favourites 0 retweets

In reply to @lostinrecursion

@lostinrecursion that was a year or two ago! I've been appreciating your work since then :)

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mathematical programmer types: what's your opinion of "setA or setB" as a syntax for set union? Abhorrent? Convenient?

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(I'm definitely going to have `union(a,b)`, but thought overloading `and`/`or` as well might look better)

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In reply to @moko_58

@moko_58 ok, thanks. I knew it was a stretch

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Just got my USS pension statement. What a sum! I will live like a king!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I've got to take issue with your use of \simeq there. What's wrong with \approx?

0 favourites 0 retweets

In reply to @knotunknot

@MadeleineS I'm going up to Edinburgh with my girlfriend this Saturday to do some Christmas mooching. Where should we go?

0 favourites 0 retweets

In reply to @knotunknot

@MadeleineS sort of shopping but mainly just having a day out. We've seen the main sights many times.

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In reply to @knotunknot

@MadeleineS thanks!

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In reply to @knotunknot

@MadeleineS I almost certainly do! Where are you normally?

0 favourites 0 retweets

In reply to @futurebird

@futurebird ooh, that's reminded me I want a masonry drill!

0 favourites 0 retweets

In reply to @MouldS

@MouldS they look a bit like hospital bracelets?

0 favourites 0 retweets

In reply to @MouldS

@MouldS maybe talk to these dudes: theplasticshop.co.uk/gaskets-washer…

0 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly @UniversitiesUK I once checked into my flight home from Berlin through eduroam by standing outside a university building.

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!!!!!!!!!! RT @mathhombre: Oh man. Geobunnies got shirts: redbubble.com/people/2redhea…

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK if I Google what I think that acronym stands for, will I be put on a list?

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib I suppose backup batteries for each cluster would have to be absolutely enormous.

0 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly that SO question has a lot less argument on it than I was expecting! Well done, internet people

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb best investment you'll ever make. Or you can get blackboard vinyl stickers or blackboard paint

0 favourites 0 retweets

In reply to @missm_books

@missm_books @Thalesdisciple @hannahnpbowman @SciencePorn the knife strongly implies he isn't using only homologies to get it in his mouth

1 favourite 0 retweets

Oh no, algebraic roadworks!

18 favourites 25 retweets

In reply to @jrlarsen

@jrlarsen that would be a strong late entry in the @aperiodical's pun compo!

0 favourites 0 retweets

What's the longest bit of chalk anyone's ever written a whole word with, without it snapping? I sense a Guinness world record attempt

0 favourites 0 retweets

In reply to @knotunknot

@MadeleineS oh well, never mind. Another time!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @MrHonner oh, boo to that. Boo boo boo!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @WEMO is it compatible with unofficial plugs?

2 favourites 0 retweets

In reply to @j_lanier

@j_lanier George Orwell's foreword to Animal Farm has a wonderfully pedantic digression about which version is correct

0 favourites 0 retweets

arxiv.org is going to pass 1 million preprints very soon when the admins return to work after Christmas. What a lot of science!

0 favourites 1 retweet

Submissions to the arxiv from the first of January will have 5 digit IDs, because they're soon going to exceed 9,999 submissions per month!

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK yikes

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime should we add that video to the bottom of the post?

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime Righto

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Wahey! Arxiv.org passed the 1 million papers mark!

0 favourites 1 retweet

Ripping my girlfriend's CD collection. Can't remember my CD drive being this slow. Should be done by 2016.

0 favourites 0 retweets

In reply to @jjaron

@jjaron that's a good idea, but I fear not many.

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They're all going straight up to Google music anyway, so this feels a bit redundant.

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I have rediscovered hot weetabix. Yom Yom Yom scoff gnomp

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2015

January

I've seen a lot of weird Swiss music videos, but this is definitely the weirdest yet youtu.be/d-Q-_NUHfKE

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I noticed that too! Weird

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK all we need now is a game of baccarat to get out of hand

0 favourites 0 retweets

Instructions on this bottle of squash say to mix 1 part squash with 4 parts water. Wouldn't that be ridiculously strong?

0 favourites 0 retweets

I found a new integer sequence! Numbers with palindromic representations in more than one base oeis.org/A253594

4 favourites 5 retweets

In reply to @JanvierUK

@JanvierUK Robinson's, not double concentrate or no added sugar

0 favourites 0 retweets

For some reason, this time I tried to install and run ipython notebook, it worked. Hooray!

0 favourites 0 retweets

In reply to @treasa

@treasa On windows with python2.7, I did `pip install "ipython[notebook]"` and it just worked. I wonder if a dependency has been removed

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc clicked the cloudflare button in mediatemple admin, got confused, gave up

0 favourites 0 retweets

MATHMO MEME MEMO: φ has not been renewed as the ubiquitous maths concept. This year, Rényi's parking constants will be everywhere instead.

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Featuring code by me, CP! RT @MathJax: MathJax 2.5-beta is out! mathjax.org/mathjax-v2-5-b…

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In reply to @peterrowlett

@peterrowlett Um, yes? I saw that as well.

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In reply to @lyd_w

@lyd_w how inconsiderate! I always make sure to include the web postcode

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In reply to @JSEllenberg

@JSEllenberg something to do with \lesseqgtr? zvon.org/comp/r/ref-Mat…

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The US used to measure its computing power in 'kilo-girls' theatlantic.com/technology/arc…

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In reply to @JanvierUK

@JanvierUK happy birthday!

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In reply to @plusmathsorg

@plusmathsorg 2015's hot moustache trend?

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This is not Babar! WHAT. IS. THIS.

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In reply to @samholloway

@samholloway really? I thought the only other one was in windsor

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In reply to @walkingrandomly

@walkingrandomly bamboo paper

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In reply to @scienceatlife

@scienceatlife LMS local heroes lms.ac.uk/grants/localhe… you should do a thing about William Shanks, the chap who calculated lots of pi digits

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In reply to @christianp

@scienceatlife oh man, I've just seen that applications closed in November. Oh well!

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In reply to @RichardElwes

@RichardElwes @aperiodical I'm not

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In reply to @stecks

@stecks @RichardElwes @aperiodical if I'd planned Christiansmas better, I'd be in London for the LMS thing followed by the @FOTSN DVD show

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In reply to @christianp

@stecks @RichardElwes @aperiodical instead, I'm going to be at home here in The North, eating pancakes with my friends

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In reply to @RichardElwes

@RichardElwes if you're going, and the fancy takes you, could you write a report for @aperiodical?

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In reply to @RichardElwes

@RichardElwes super, thanks! Email it to root@aperiodical.com

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In reply to @jgrahamc

@jgrahamc that's the kind of thinking that underlies those "I can feed a family of 30 on 50p a week!" articles - bulk discounts

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Would you spot that the first of these is not the same as the second, if you came across it in text? checkmyworking.com/misc/makebigma…

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In reply to @icecolbeveridge

@icecolbeveridge me too - I'm proofreading someone else's stuff

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In reply to @Andrew_Taylor

@Andrew_Taylor Chucky

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Weird. "Math Rock Star": the Srinivasa Ramanujan app - play.google.com/store/apps/det…

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10 mathsy fabrics blog.spoonflower.com/2015/01/announ… (via @CarnivalOfMath)

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Well done 2tall.com for sending me a shirt that actually fits my ridiculous Mr Tickle arms!

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In reply to @samholloway

@samholloway yeah, it's much <<buffering...>>

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In reply to @evelynjlamb

@evelynjlamb I prefer "nuclear miso panic"

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In reply to @ChrisHazell72

@ChrisHazell72 glad to help!

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In reply to @JanvierUK

@JanvierUK thanks :)

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a bit concerned that a foreign exchange company I've never dealt with sent me an email saying "surprise, we remembered your birthday!"

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It's 12:46 - let's all dial the Bahamas!

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In reply to @mike_geogebra

@mike_geogebra not sure I'd be any use helping test, but I'd like to know how you're doing it!

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In reply to @libraryncl

@nclroblib

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In reply to @walkingrandomly

@walkingrandomly same thing happened to our old computing guy. He went with "offended"

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In reply to @peterrowlett

@peterrowlett ta!

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In reply to @MrHonner

@MrHonner @stevenstrogatz do you both know about this: arxiv.org/abs/1202.3033 ?

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Ooh, this is good: queries Wolfram Alpha can't answer - @wacnt

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This is new to me: freemium e-assessment for schools. Free in-school, but pay to allow access at home. Not sure how I feel about that

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In reply to @jjaron

@jjaron yeah, they were way off with the original

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I've bought a pukka pad for the first time in a few years. They've gone back to the stiff paper that tears properly! Hooray!

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In reply to @Bishnavitch

@Bishnavitch no. Not enough teal.

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In reply to @peterrowlett

@peterrowlett ooh, I'm free! Thanks for reminding me

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In reply to @jgrahamc

@jgrahamc all that matters is that your hips tell the truth

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The blackbird is named for the male of the species #everydaysexism

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My laptop is now the coolest laptop, thanks to @GeoBunnies

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In reply to @Bishnavitch

@Bishnavitch have you seen youtube.com/watch?v=o27rxQ… ?

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In reply to @Bishnavitch

@Bishnavitch Helen says she sees your Stars in Their Eyes and raises you two episodes of Poirot

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Could it bee? @aperiodical

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In reply to @jjaron

@jjaron for a while he also had some pretty kooky ideas about who would rule the planet earth

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Newcastle @MathsJam is TONIGHT, 7pm at the Charles Grey pub. Don't tell anyone, but I've got Dobble.

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In reply to @samholloway

@samholloway (not really) OH in the computer science department: "FizzBuzz just got a lot harder!"

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In reply to @jamesgrime

@jamesgrime ooh, an argument about the true meaning of a phrase! That's where I'm a viking!

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In reply to @robeastaway

@robeastaway @Gelada @icecolbeveridge after 50 rounds using a computer random number generator, I'm winning 20-17. Don't think it's cheating

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In reply to @DanielColquitt

@DanielColquitt annoying in healthy people, but some people have bad knees and arthritis and so on

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In reply to @icecolbeveridge

@icecolbeveridge ... and I've just updated the MathsJam map with your new location

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sudden flashback to making random landscapes with Perlin noise in DarkBasic. Gosh.

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Teenagers have violated a law of physics: the concentration of Lynx in the air on this train is greater than the concentration in the can

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Ooh, just created question 7000 on the @NclNumbas public editor. It does clever things with polynomials! numbas.mathcentre.ac.uk/question/7000/…

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In reply to @icecolbeveridge

@icecolbeveridge @MathsJam I see your one side and all angles, and raise you one side and TWO angles

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"100% chicken breast". I wonder how the bacon feels about that.

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In reply to @icecolbeveridge

@icecolbeveridge @nillie_kj huh? No, I was just planning on writing C=180-A-B and getting on with my day

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In reply to @robinhouston

@robinhouston in what way? I can see a couple of problems

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In reply to @robinhouston

@robinhouston ok. It also goes down between 2005 and 2008. And which average do they use for CEO pay? And why $ versus £? etc etc and so on

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In reply to @robinhouston

@robinhouston "read more" says "even proportionally, there has been almost no improvement in poverty rates in sub-Saharan Africa since 1981"

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In reply to @haggismaths

@haggismaths aaa I want to play!

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You know that sandwich I tweeted about at lunchtime? It is now making me pay for my insolence.

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What I'm trying to say is:

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Poopin'.

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In reply to @TimHarford

@TimHarford I certainly agree with the headline.

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Cool kids don't link directly to the PDF form of an arXiv preprint

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In reply to @kenfodder

@kenfodder code, or prose?

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Recently we switched to a brand of bread whose slices don't have reflection symmetry. This has had bad consequences for our sandwiches

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In reply to @semiBad

@semiBad I sometimes shush command line tools

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In reply to @Gelada

@Gelada Butter both slices. Add filling on one, flip other and put it on top. Solved by flipping one first, or not buttering both sides

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In reply to @samholloway

@samholloway what about Qs F,G and H?

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And now, some Tiny Drawings of Times of Old

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1. A stick and hoop, abandoned after the invention of computer games.

Q

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2. One snowman painting another snowman's portrait

8A 8

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In reply to @ben_nuttall

@ben_nuttall can I do a twitter pull request? s/'lol'*i/'l'+'ol'*i/

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In reply to @mutedestro

@mutedestro huh? You prefer linking directly to the pdf?

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In reply to @mathcentre

@mathcentre thanks, but this is very much a personal account. Can you please mention @NclNumbas instead?

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Going to assume the fact my DSL has gone down is linked to the digger outside. There's some shouting.

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This DIY coat stand is the absolute worst. Measuring 120° was solved literally millennia ago!

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In reply to @chris_a_wagner

@chris_a_wagner SkewGender is the one you really want

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In reply to @jjaron

@jjaron his birthday could be between now and May

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In reply to @jgrahamc

@jgrahamc braille numbers don't have a check digit?!

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In reply to @bitcraftlab

@bitcraftlab @jamesgrime I'm not sure about that.

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In reply to @RichardElwes

@RichardElwes and it went straight into the spam folder. Thanks for warning me :)

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In reply to @mathhombre

@mathhombre I'm writing a thing about this for @aperiodical. I have largely the same thoughts

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LMS/LMS mashups:
Least Mean Society
Least Mathematical Squares
London Mean Society

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Trying to just post a nonsense formula piece without digging into it and cataloguing the many ways it's nonsense. Failing.

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The @aperiodical is doing really well with guest posts at the moment. Thanks everyone! And if you've got something to say, send it in!

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In reply to @peterrowlett

@peterrowlett sorry...

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In reply to @peterrowlett

@peterrowlett but I'm working through the news queue! Pity that my dealing with administrivia produces yet more of it

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In reply to @NCLMathsStats

@NCLMathsStats the Maths Arcade is running again for Semester 2. 12pm every Tuesday in the Herschel foyer. Play games while you eat lunch!

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'zeros' or 'zeroes'?

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apparently 'zeroes' is more common in America! A rare case of adding a letter english.stackexchange.com/questions/3824…

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zeroe. #danquayle

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In reply to @JanvierUK

@JanvierUK the BBC programme page only goes up to 5th of Feb. Where else would one find it?

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In reply to @Derektionary

@Derektionary I'll consider that definitive!

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In reply to @GreyAlien

@GreyAlien wow, you're really splashing that indie cash

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You all think you're so cool, with your links in red and no underline. Well, I'm not clicking on them because I can't see them.

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Has anyone compared Apple's record profits to the East India Company? Time for Obama to take them over and become Emperor of Bevelled Edges?

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The solution to a question I'm editing just gives the formula for matrix inverse with no proof. Is this too much?

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In reply to @tynesidecinema

@tynesidecinema not sure if it's appropriate for Valentine's, but Umbrellas of Cherbourg

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(I wrote out a derivation, to see if it was the right length to include. This is online, so no need to save paper. Worthwhile?)

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In reply to @JamesMoosh

@JamesMoosh yeah well, I wrote left-to-right and didn't think about what would happen after

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In reply to @ashleyhwright

@ashleyhwright oh wow, you're right! Glad I'm not going out for lunch today

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Today's notation conundrum: is "5/7" a mathematical expression which must be calculated, or does it represent a number in its own right?

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I'm of the opinion that, for example, "10^9" is a thing to be calculated. But I'd almost never write it as "1000000000", so maybe I'm wrong

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Maybe the question is: is this how you'd write this number if you referred to it on its own?

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In reply to @jjaron

@jjaron it's one more than 56.

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In reply to @jjaron

@jjaron quite!

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In reply to @icecolbeveridge

@icecolbeveridge I think there's (one or more) way of writing a number so you say "I don't have to do any more work, I know what this is"

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In reply to @icecolbeveridge

@icecolbeveridge you're slightly veering away from my question - not "what's the best way of writing it?", but "does it need any more work?"

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In reply to @infrahumano

@infrahumano so my question was: does "5/7" represent an operation, or not?

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In reply to @robotmaths

@AdamCreen I consider a GCSE marking scheme the least authoritative possible source

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In reply to @robotmaths

@AdamCreen yes

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ALISTAIR FINISHED HIS BEES POST!!! "@aperiodical: Apiological: mathematical speculations about bees aperiodical.com/?p=7743"

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If I wanted to read the three paywalled references in @outofthenorm2's bees post, it'd cost me £107.82. That's too much money.

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In reply to @MouldS

@MouldS what a muddy dog!

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In reply to @Andrew_Taylor

@Andrew_Taylor I think "it" is the benefit from doing the thing

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In reply to @Andrew_Taylor

@Andrew_Taylor oh yes, I got it wrong. I had it right in my head before I wrote the tweet.

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In reply to @Andrew_Taylor

@Andrew_Taylor anyway, Language Log: languagelog.ldc.upenn.edu/nll/?p=2857

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"Four" is an interesting thinky game. I'm sure you can do some graph theory on it piqnt.com/4/four/

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In reply to @haggismaths

@haggismaths something to do with this? arxiv.org/abs/0803.1129 Can't remember exactly what it's about, got the link on my phone

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In reply to @gingerbeardman

@gingerbeardman that looks AMAZING

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In reply to @aperfect

@aperfect I was just looking at that photo and thinking how uncool the Ferrari overalls are

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In reply to @JanvierUK

@JanvierUK I got about an hour-ish in last night, and he never seemed to actually state his thesis or offer any argument. Just endless facts

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In reply to @CardColm

@CardColm you could try Teesside?

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February

Just saw the new @MathJax quick first-pass rendering happen on a live page for the first time. Clever!

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In reply to @libraryncl

@nclroblib when I'm on sciencedirect, the library's logo is not showing up - it's trying to load from ncl.ac.uk/library/findit…

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In reply to @libraryncl

@nclroblib that was the point! I was looking at sciencedirect.com/science/articl… and the URL I gave before is where it thinks the logo should be

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In reply to @libraryncl

@nclroblib thanks! Is there an email address I should use for this sort of thing, so it gets to the right people quicker?

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Today's test account

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In reply to @peterrowlett

@peterrowlett what happens next will BLOW YOUR MIND

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In reply to @peterrowlett

@peterrowlett next week's lecture: the 27 craziest roots of unity

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In reply to @samholloway

@samholloway @peterrowlett hey, I don't believe in the axiom of choice. You can't put a well-ordering on the complex numbers!

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In reply to @icecolbeveridge

@icecolbeveridge @aperiodical there's a use for astrolabes too, but I don't carry one with me

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brb, pitching my new weekly knockout format "Test of the d'Urbevilles" to ITV. Celebs compete to out-emosh each other

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all I want for christmas is a terminal that can output a unicode snowman

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In reply to @sxpmaths

@sxpmaths hey, where did 7B go?

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In reply to @peterrowlett

@peterrowlett whooooops! Fixed.

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The Liverpool Echo has a pancake day countdown clock. I approve MOST HEARTILY liverpoolecho.co.uk/whats-on/whats…

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In reply to @matheknitician

@matheknitician that got me thinking about the best dimensions for a grid of n! squares. It's this OEIS sequence: oeis.org/A200743

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In reply to @Andrew_Taylor

@Andrew_Taylor boo to that!

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In reply to @scienceatlife

@scienceatlife what, @edyong209 is a permanent installation now?

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Mojibake: the mess resulting from decoding text using the wrong encoding en.wikipedia.org/wiki/Mojibake

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The TinyMCE documentation is terrible. So many undocumented options!

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In reply to @mikeandallie

@mikeandallie it works! geogebratube.org/student/m626989

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In reply to @SLSingh

@SLSingh @TomChivers @walkingrandomly I have this body horror just about every other day while brushing my teeth.

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In reply to @benjamintormey

@BenTormey I just removed your marking account from NESS. Sad.

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I've just finished Odd Bot Out by semi-acquaintance @MartinMagni - oddbotout.com. It's a fun physics puzzler with a cute robot

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In reply to @stecks

@stecks @mcrgirlgeeks but what about AstROFLs? Will they be available as well?

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Another day, another test user

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In reply to @samholloway

@samholloway surely Teicester

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In reply to @HiFikidsDotCom

@HiFikidsDotCom you probably won't reach too many of the people you want at #mathsjam - it's for adults who are already good at maths!

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In reply to @ColinTheMathmo

@ColinTheMathmo I've just realised this is The Tale Of How You Get To Newcastle. How late will you be?

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“I’m Autistic, And Believe Me, It’s A Lot Better Than Measles” by Sarah Kurchak medium.com/the-archipelag…

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In reply to @icecolbeveridge

@icecolbeveridge something something cardinality of the unit interval

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In reply to @C_J_Smith

@C_J_Smith @aperiodical @Independent oh, PR fluff for @FryRsquared's new book. No disapproval: working shown, formula is really a formula

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In reply to @C_J_Smith

@C_J_Smith also Betteridge's law: the answer to their question is "no".

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In reply to @C_J_Smith

@C_J_Smith @FryRsquared the best I could find on the arXiv is this: The Local Bubble, Local Fluff, and Heliosphere arxiv.org/abs/astro-ph/9…

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Oh dear: the @makerfaire_uk is the weekend of @aperfect's wedding. Tough choice.

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In javascript, if you try to call `o.fn(b())`, where o doesn't have the property `fn`, b() is still evaluated anyway codepen.io/christianp/pen…

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Just submitted a "base,dumb,easy" sequence to the OEIS. This is how I choose to waste my hours on this earth.

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In reply to @BrianGenisio

@BrianGenisio cor, that'd be quite something

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In reply to @BrianGenisio

@BrianGenisio but that doesn't work:
var a={};
function b(){a.q=function(v){console.log('a',v);}; console.log('b'); return 'b'};
a.q(b())

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In reply to @brittneybean

@brittneybean wow! Friday's my day off so I will watch

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In reply to @BrianGenisio

.@BrianGenisio in Python, an AttributeError (or KeyError) is thrown and the arguments aren't evaluated: gist.github.com/christianp/0a4…

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In reply to @Derektionary

@Derektionary oeis.org/draft/A254898

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In reply to @icecolbeveridge

@icecolbeveridge @ColinTheMathmo yep, and he told me on Monday he can now do the trick on an 8x8 board

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In reply to @Derektionary

@Derektionary Probably. The sequence with 3 on the end is in, and the forwards sequence with no 3 is in, so this completes the set

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"For spacial reasons, we cannot allow passengers with dogs to use the service" [a tunnel] - huh? Dogs are smaller than people.

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unless "spacial" is a new word

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In reply to @walkingrandomly

@walkingrandomly (and later on, worry that a significant amount of our computer stuff is all stored on the same privately-held servers)

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In reply to @walkingrandomly

@walkingrandomly yeah, that's not a problem. But github provides a lot of useful stuff that would be hard to replicate if they disappeared

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In reply to @leonpalafox

@leonpalafox @walkingrandomly that's a bit different, because you don't typically keep a local copy of all your emails

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In reply to @leonpalafox

@leonpalafox @walkingrandomly I'd say it's more like google reader - they added a lot of value to something that already exists freely

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In reply to @leonpalafox

@leonpalafox @walkingrandomly right. And gmail lock-in could turn out to be a problem.

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In reply to @evelynjlamb

@evelynjlamb group theorists don't want you to know this ONE WEIRD TRICK to decide if a word is trivial!

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In reply to @lostinrecursion

@lostinrecursion @j_lanier hey, those are the Zeckendorf representations of the natural numbers!

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Today's weird maths-inspired product: "MATHEMATICS" scissors designyxr.com/objects/#/math…

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In reply to @LearningMaths

@LearningMaths really? I don't get it. More golden ratio nonsense

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In reply to @LearningMaths

@LearningMaths oh well, different strokes for different folks

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In reply to @sxpmaths

@sxpmaths you'd hope so, but factoring top and bottom is much quicker. "Simplify" is a terrible word

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@alexallmont @haggismaths ooh, it looks fun to use: youtube.com/watch?v=58GfWU…

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In reply to @wilderlab

@wilderlab I first saw that in this gif: imgur.com/gallery/VH34C

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In reply to @stecks

.@stecks @jamesgrime if anyone can make a gif of the bit where he says "err, modular arithmetic", I'll be eternally thankful

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In reply to @lostinrecursion

@lostinrecursion ah, whoops!

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In reply to @standupmaths

@standupmaths @phil_mcgeehan isn't that Hypercuba?

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In reply to @haggismaths

@haggismaths I wish I'd bought one when I had the chance. Now they cost big money

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In reply to @MrHonner

@MrHonner @timchartier even better: unicodeit.net

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Newcastle @MathsJam isn't happening this month, because tomorrow is pancake day!

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In reply to @peterrowlett

@peterrowlett @CardColm he just needs to visit @stecks and he'll be able to fill his Aperiodical autograph book

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In reply to @brittneybean

@brittneybean end that foo(d)

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In reply to @haggismaths

@haggismaths @standupmaths whaaaaaaaaaaat

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In reply to @coordimategraph

@coordimategraph do you know your account's been hacked for a couple of weeks now?

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My stupidest integer sequence yet is finally published: "read the first n digits of π-3 backwards" oeis.org/A254898

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So, what did Father Pancakes bring you?

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In reply to @icecolbeveridge

@icecolbeveridge @florapost1 @MathsJam crikey, that would be difficult with ~30 jams in one timezone. Solve the TSP in each timezone?

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In reply to @florapost1

@florapost1 @icecolbeveridge @MathsJam huh?

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It's as I feared: adding the "re-roll randomised variables until they satisfy this property" feature has made me much slacker

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In reply to @aperfect

@aperfect cor!

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In reply to @libraryncl

@nclroblib is anyone else complaining about the wifi in the library? It's been terrible here in Maths-Aid since the upgrade

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In reply to @JanvierUK

@JanvierUK I like you.

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In reply to @JanvierUK

@JanvierUK because you're a good person, and you make me smile. Don't let bad feelings lie to you.

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"boo hoo hoo I can't get TikZ to draw my diagram nicely" - try telling that to the author of this: anaphoria.com/meruone.PDF

2 favourites 1 retweet

(Not so) Much Ado About Nothing by Tanya Khovanova and her son tanyakhovanova.com/publications/N…

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Googling takes me funny places. The weird ways numerals are written in China - sinosplice.com/life/archives/…

1 favourite 0 retweets

In reply to @theoremoftheday

@theoremoftheday that's how I found it

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In reply to @sophiebauckham

@sophiebauckham "Somehow they made Newbiggin worse"

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When you multiply a 1xN matrix by an Nx1 matrix, what do you get: a number, or a 1x1 matrix?

1 favourite 1 retweet

In reply to @infrahumano

@infrahumano of course, but which one would you say you've got? Or, which would you write?

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In reply to @jamesgrime

@jamesgrime @infrahumano jolly good!

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In reply to @badmachinery

@badmachinery oh my! That's even more jolly than Cow Cow Boogie youtube.com/watch?v=8567aN…

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My fiancée's good at music but doesn't know how to code; I'm good at code but don't know how to music. Is there a @Sonic_Pi tutorial for us?

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In reply to @Sonic_Pi

@Sonic_Pi I honestly don't know. I have a vague memory of opening Sonic Pi about a year ago and fancy seeing if we can try it together.

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In reply to @outofthenorm2

@outofthenorm2 I think you mean antcestors

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In reply to @peterrowlett

@peterrowlett @C_J_Smith yes! See also: names of unit vectors

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In reply to @icecolbeveridge

@icecolbeveridge @C_J_Smith @shahlock it's not a number, but would you ever lead someone to believe it is with your notation?

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In reply to @ColinTheMathmo

@ColinTheMathmo @robeastaway I assumed it was an idiom I'd never heard of

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In reply to @profhelenwilson

@helenjbradley you might have some success with my deck.js template - write slides in html github.com/christianp/dec…

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Hey! This is a tiny horse!

2 favourites 1 retweet

All the people saying "it's a normal horse and you're just too big" - I get enough of that from my girlfriend

1 favourite 0 retweets

In reply to @theoremoftheday

@theoremoftheday @peterrowlett @apdox @aperiodical Thompon's group F has been proved amenable and non-amenable multiple times each way

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In reply to @lyd_w

@lyd_w #toosoon m.bbc.co.uk/news/uk-englan…

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In reply to @CardColm

@CardColm it's on its way...

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In reply to @CardColm

@CardColm I take some umbrage at the implication I'm in the midlands

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In reply to @tynesidecinema

@tynesidecinema a rare photo from Bleatchley Park!

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Monday morning test user

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If you're having trouble remembering the numbers, repetition can help. oeis.org/A002264 - integers repeated 3 times

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I'm sure the amount of time it takes me to find the "Download full paper as PDF" link on ScienceDirect increases with each visit

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In reply to @CardColm

@CardColm the local delicacy! If only it was in a stottie

0 favourites 0 retweets

In reply to @CardColm

@CardColm I think email problems are rampant! I'll wait at haymarket metro to pick you up

0 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly you could do it with vagrant fairly easily, but it wouldn't be quick

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Just imagine if javascript had a raw string literal like Python's. Just imagine.

1 favourite 0 retweets

Another integer sequence! a(1) = 3; a(n) = read the next a(n-1) decimal digits of pi oeis.org/A255190

2 favourites 0 retweets

The facebook app on my phone has drained my battery in 3 hours. What can it possibly be doing?

1 favourite 1 retweet

Green is having a bad time. #tantrix

1 favourite 0 retweets

After his talk yesterday, @CardColm's book has taken its place on my bookshelf

2 favourites 1 retweet

Dear Americans: your attitude to credit card security is woeful. And also: WHY DON'T YOU TAKE ONLINE RESERVATIONS

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Excellent chiasmus in The People's Kitchen's slogan peopleskitchen.co.uk

2 favourites 1 retweet

Friends, I ask you: what do we gain by abbreviating "false" to "flse"? #badcodereview

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In reply to @CardColm

@CardColm @SHUMaths I've got one! I could've prepped you

0 favourites 1 retweet

In reply to @helenarney

@helenarney Mu-vie night

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In reply to @CardColm

@CardColm by the way, I worked out the four card Fitch Cheney trick

0 favourites 1 retweet

In reply to @CardColm

@CardColm eugh.. maybe

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In reply to @CardColm

@CardColm yeah, I gave up and googled. You mean the time order you put the cards down matters too?

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In reply to @CardColm

@CardColm looking at the positions of the dark spot as a sequence, it's not in the OEIS (or its mirror)

0 favourites 1 retweet

In reply to @CardColm

@CardColm well, I can't do that with my deck!

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In reply to @CardColm

@CardColm actually it was the ƧIƎO

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Does anyone know what the "game of contours" is? I don't have a copy of Winning Ways oeis.org/A006021

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In reply to @CardColm

@CardColm I'm glad you can see both sides of the matter

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In reply to @AfarBell

@AfarBell @CardColm (back to the seat covers?) each row has two dark spots. Not sure if that means anything.

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In reply to @walkingrandomly

@walkingrandomly for when you can't be bothered to write a .gitignore?

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I get the impression I don't care about my hair enough for my barber's liking.

3 favourites 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth @aperiodical how did I not catch that? I am very familiar with the Dobble deck. Will fix it.

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In reply to @wacnt

@wacnt I think it's 12352: gist.github.com/christianp/2db…

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In reply to @wacnt

@wacnt Possibly some time in October 2006: cloud.sagemath.com/projects/48ea2…

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In reply to @wacnt

@wacnt 247338 gist.github.com/christianp/911…

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In reply to @wacnt

@wacnt I reckon "nonsynonymous", or if you don't like the prefix, "monosporous".

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In reply to @wacnt

@wacnt 1.5240217474538633, or 696577:457065 - gist.github.com/christianp/438…

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In reply to @wacnt

@wacnt 20976 - gist.github.com/christianp/8cb…

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In reply to @icecolbeveridge

@icecolbeveridge (with a one-hour gap while my dad told me about his house-hunting woes)

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In reply to @wacnt

@wacnt Afghanistan and China: 3.7899159663865545 (45.1 against 11.9) - gist.github.com/christianp/6f8…

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March

In reply to @wacnt

@wacnt 9 - gist.github.com/christianp/8a6…

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In reply to @wacnt

@wacnt Agadez and Tel Aviv - gcmap.com/mapui?P=AJY-TL…

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In reply to @wacnt

@wacnt 412.5 miles per hour - 2475 miles over 6 hours (gcmap.com/dist?P=JFK-LAX)

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In reply to @wacnt

@wacnt I had a good go at this but getting the lines to match up is tricky!

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In reply to @wacnt

@wacnt 279

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In reply to @wacnt

@wacnt 7 - gist.github.com/christianp/50b…

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In reply to @christianp

@wacnt working: gist.github.com/christianp/4d5…

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In reply to @CardColm

@CardColm creepiest Beatles tour yet?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge early algebra. Italians used 'cosa' to mean the unknown. Germanic mathmos miswrote that as 'coss'.

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge (I'm currently reading this fascinating book on mathematical notation: press.princeton.edu/titles/10204.h…)

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In reply to @nillie_kj

@nillie_kj @icecolbeveridge yes

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In reply to @divbyzero

@divbyzero I'll always remember 17 is a prime number because once there were 17 of us in a PE class and the teacher asked me why it was bad

1 favourite 2 retweets

In reply to @aperfect

@aperfect I have to use SAP. You lose.

0 favourites 0 retweets

In reply to @stecks

@stecks what, more than the Hermann the German graphs?

0 favourites 0 retweets

In reply to @samholloway

@samholloway @stecks yes, you should see a tweet. What happens when you refresh the page?

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In reply to @nillie_kj

@nillie_kj so I was quite far off - that makes it (22/16)*1000*1000*(11/75) = 201667, whereas I got 247337. Hm.

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Woohoo! @FOTSN finally persuaded a venue in Newcastle to let them in festivalofthespokennerd.com/around-uk/

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In reply to @FOTSN

@FOTSN I can provide... TWO AUDIENCE MEMBERS!

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In reply to @FOTSN

@FOTSN hm.. I'm a maths one, and I'm bringing a musical girl one... I need a pyromaniac!

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This is a terrible way of presenting a statistic

1 favourite 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin bravo!

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No wonder I've stopped getting automated backups: the @aperiodical's MySQL database dump is 350MB!

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... which compresses down to 55MB. That's still quite big!

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Started writing a 4-page paper. I've written an outline, which I'll fill with text, and it's already 3 pages. Who knew I was so verbose?

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In reply to @ZaltzCricket

@ZaltzCricket they should take a note out of Bernie Ecclestone's book and add sprinklers to the pitch

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In reply to @jamestanton

@jamestanton Yes!

1 favourite 0 retweets

In reply to @pkrautz

@pkrautz that's actually not bad, and nowhere near the nonsense we get in British papers. It all makes sense!

0 favourites 0 retweets

In reply to @Sharpe_Actuary

@Sharpe_Actuary @jamestanton like so

0 favourites 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin can you write a comment on the post itself?

0 favourites 0 retweets

In reply to @christianp

@Sharpe_Actuary @jamestanton conjecture: that's the best (most dice) you can do

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In reply to @christianp

@Sharpe_Actuary @jamestanton I retract that immediately. You can do any curve that never has more than one non-corner die

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Exported a bibtex citation from sciencedirect. It contains an unescaped ampersand. How has that not been caught? #addedvalue

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Empanadas!

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In reply to @exitgames_uk

@exitgames_uk @noneatnamesleft that's quite serendipitous because I've been meaning to ask: what's the best exit game near Newcastle?

0 favourites 0 retweets

scrapmaker.com/home - "Useful lists for geeks, machine learning, and linguists."

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In reply to @tarim8

@tarim8 @standupmaths all you need is a One Direction concert around the corner and you've got the full set

0 favourites 0 retweets

"Username must be 6-8 characters". So I can't use my actual name, then.

1 favourite 0 retweets

Fun game:
1) draw a scribble in detexify.kirelabs.org/classify.html
2) look at the top match ,and find papers using it at latexsearch.com/home.do

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In reply to @ruimvieira

@ruimvieira hm.. how hard would it be to compute frequencies for every symbol used on the arXiv, and for each paper list its rarest symbol?

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In reply to @ruimvieira

@ruimvieira it looks like it would cost about $23 to download the entire set of source files.

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira I'm currently trying to work out how to actually download it! I can spend $0.12 on a prototype

1 favourite 0 retweets

In reply to @christianp

@ruimvieira I can't log in to AWS account. That's probably for the best - I have a paper to write

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@turnipheadpic @TynemouthGossip I assume the photo was taken to record the one time in history parking wasn't a problem on Front Street

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In reply to @ruimvieira

@ruimvieira I have something which works in about 1 second on a 60MB dump. Hmm

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In reply to @ruimvieira

@ruimvieira the most conventional paper I've got is fr.arxiv.org/abs/hep-ph/030… - it uses \nu 5 times more than average

0 favourites 0 retweets

In reply to @phillord

@phillord detexify.kirelabs.org/classify.html

1 favourite 0 retweets

oeis.org is down! HOW WILL I COPE?

1 favourite 1 retweet

Featuring a "puzzle" by me, CP! RT @aperiodical: Puzzlebomb – March 2015 aperiodical.com/?p=13511

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Does anyone think 91 euro is a sensible price for an anthology of articles about pi? springer.com/gp/book/978038…

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Just a reminder that Legendre defined a constant which was used for 80 years before it was proved to be exactly 1 en.wikipedia.org/wiki/Legendre%…

19 favourites 20 retweets

All in favour of calling the first of January Legendre's Day?

2 favourites 0 retweets

In reply to @robeastaway

@robeastaway the solution is to form a swapping syndicate. I did some similar calculations for football stickers: plus.google.com/+ChristianPerf…

1 favourite 0 retweets

In reply to @stevenstrogatz

@stevenstrogatz @MoMath1 that link goes to "Page not found" for me

0 favourites 0 retweets

I really like the typography in this maths paper from 1965. nvlpubs.nist.gov/nistpubs/jres/… What flavour of hipster am I now?

2 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith there's an extremely popular pub near us that has the same setup. I have no idea how they get away with it!

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith yeah, but I've only been there once, at someone else's birthday party

0 favourites 0 retweets

Spend 10m writing code to find a Metro route which sees all vowels in station names: output is two adjacent stations gist.github.com/christianp/b9f…

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson so that hit's answer is "carefully"?

0 favourites 0 retweets

In reply to @johndavidread

@johndavidread while looking for data, I found this paper which might prompt another series from @outofthenorm2 beheco.oxfordjournals.org/content/12/6/6…

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A slightly obscure test user today (en.wikipedia.org/wiki/Chester_B…)

0 favourites 0 retweets

@katemath For similar reasons, the "Send" button in email should be relabelled "Begin the process of proofreading"

2 favourites 0 retweets

Best King name ever: Ladislaus the Posthumous en.wikipedia.org/wiki/Ladislaus…

2 favourites 0 retweets

I intend to become Christian the Rejected on Technical Grounds, the First

0 favourites 0 retweets

In reply to @tim_hunt

@tim_hunt As far as I can see, we're at around 350,000 for Numbas, since Sep 2012. A different scale!

0 favourites 0 retweets

In reply to @Simon_Gregg

@Simon_Gregg @benorlin I can't think how I'd explain it any simpler than the wikipedia page does. It's a moderately-tough concept

1 favourite 0 retweets

In reply to @CardColm

@CardColm do you mean, a sequence of (ball hit by white, balls potted) ?

0 favourites 0 retweets

In reply to @christianp

@CardColm that'd be a fascinating problem to run a computer vision algorithm on recordings of snooker matches

0 favourites 0 retweets

Mmm!

1 favourite 0 retweets

In reply to @CounterOfSheep

@ajkiddle ShortLex order! (but also patriarchy)

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle gender fields should be freeform-entry, anyway

1 favourite 1 retweet

Ran out of hot chocolate powder, had to use cocoa. Unsure if I'm getting my fix.

0 favourites 0 retweets

Exactly a month until I become Mr Lawson-Perfect. Exciting!

4 favourites 0 retweets

Le livre de l'incompletude is still too incomplete even to publish an ebook. Submit some formulas for the numbers 0-9 incompletude.com

0 favourites 0 retweets

In reply to @irks5

@irks5 it's only using javascript to check the formulas, so all sorts of overflows and other errors can happen

0 favourites 0 retweets

In reply to @irks5

@irks5 I suppose the link with Gödel is to do with the completeness of formal systems...

0 favourites 0 retweets

In reply to @irks5

@irks5 ...it's just a shame that the rules they've got give a complete consistent system (I think)

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib maybe he's an urban wizard? vimeo.com/27832247

0 favourites 0 retweets

GitHub makes it really easy to fix typos in open source software. Just submitted a pull request for a one-character change to STACK

1 favourite 0 retweets

In reply to @TimHarford

@TimHarford it looks like you've got a photo credit in there with no photo ("fortune teller with crystal ball")

0 favourites 0 retweets

In reply to @futurebird

@futurebird it's a good way of communicating the name you prefer to be called by, which isn't often the same as the one in the From header

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @aperiodical still time for you to get a post in

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Well, I was planning on having a productive morning writing posts for the @aperiodical, but it is TOO COLD TO TYPE

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#teachthecontroversy

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In reply to @icecolbeveridge

@icecolbeveridge @aperiodical yep! Stick it on the site

0 favourites 0 retweets

oop, I'd better do something with that novelty domain name I bought. #firstworldproblems

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge \[ and \]

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge but don't worry about that kind of stuff - I'll run through it and tidy to my liking when you're done

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ta! Might look at it today, depending on how my other stuff goes

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths (still being worked on)

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @standupmaths indeed!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths well, that's my wedding decorations sorted

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @ben_nuttall @standupmaths oh yes, that's the other thing I was going to do! Whoops

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @ben_nuttall @standupmaths try now

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall @Andrew_Taylor something something unicode. Hang on...

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor oh, that's very good!

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor that one made sense for the first episode - "The Supersizers Go Edwardian" - because Edwardians ate so much

0 favourites 0 retweets

It's pile day, right? Here's my ironing pile. #pileday

2 favourites 0 retweets

someone think of a Greek or German compound word for when you expect tab-completion to work on mkdir

0 favourites 1 retweet

I've added a little explanation to three.onefouronefivenine.com

0 favourites 2 retweets

In reply to @peterrowlett

@peterrowlett it's in my autocomplete now 😉

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @standupmaths I'd guess most of the inaccuracy is in using the stopwatch.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett hmm... <sneaky edit>

0 favourites 0 retweets

In reply to @stecks

@stecks @aPaulTaylor @ColinTheMathmo @standupmaths and/or your remake of The Italian Job is running considerably under-budget

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I haven't noticed a difference

1 favourite 0 retweets

In reply to @tombutton

@tombutton I have, like, a photographic memory for tweets. You probably saw this: twitter.com/GregSchwanbeck…

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway are you in the region for long?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb nice meme

0 favourites 0 retweets

just wrote what looks like "otters can use my work". I think I meant "others can use my work", but might see a new research opportunity

3 favourites 2 retweets

In reply to @samholloway

@samholloway if he had an opinion, surely he would have coded it into the system wolframalpha.com/input/?i=recom…

1 favourite 0 retweets

@JPalmerLFC @qikipedia it's the only such pair of primes in the first 50,000. Just a coincidence though.

1 favourite 0 retweets

In reply to @samholloway

@samholloway weirdly, it doesn't know how to answer the obvious follow-up: wolframalpha.com/input/?i=what+…

0 favourites 0 retweets

Just got a lovely note from @lyd_w through work's internal mail. Feel I should reply by carrier pigeon

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro @DavidJSharples @tmalbrghtn that's the same answer you just gave, but somehow even more vague

1 favourite 0 retweets

In reply to @Nat_Numeracy

@Nat_Numeracy @DrEugeniaCheng that formula is nonsense

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor --no-no-no-no-no-no-no-no-limit

0 favourites 0 retweets

Finally complete! RT @aperiodical: Apiological: mathematical speculations about bees (Part 3: Travelling Salesman) aperiodical.com/?p=7750

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This is the smallest banana I've ever seen!

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I live with that hand, so it's less surprising RT @cnrlwlss: @christianp Smallest banana, or biggest hand?

1 favourite 0 retweets

Ladies and gentlemen, @outofthenorm2 HAS FINISHED HIS BEES POST!!!!!!!!!!!!!!!
Over two years in the making, all three parts are now online.

0 favourites 3 retweets

I work a 4-day week, for medical reasons. I took a 20% pay cut, of course. But I reckon I'm as productive as anyone else working five days.

1 favourite 0 retweets

If only my output could be easily quantified.

1 favourite 0 retweets

The dog is more organised than I am. She puts herself to bed at bang on 9pm every night. How does she do it?

0 favourites 0 retweets

Time to play England's favourite game: where is the sun?

2 favourites 0 retweets

In reply to @LargeCardinal

@LargeCardinal @icecolbeveridge etymonline says meaning "third part of X" from 14th C., but no reference

1 favourite 1 retweet

In reply to @LargeCardinal

@LargeCardinal @icecolbeveridge (etymonline.com/index.php?allo…)

1 favourite 1 retweet

The sun came out for a tiny moment! Clouded over again by the time I'd put a pinhole in a thing though. Boo

0 favourites 0 retweets

I've watched SEVERAL videos of frozen pea factories on YouTube and I still don't know how they get them out of the pods.

2 favourites 0 retweets

This Pathé film has a lovely jazz soundtrack though youtu.be/BL_xPZzSd8Q

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I don't think Mr. Pea Sheller is the answer youtube.com/watch?v=Pk9arl…

0 favourites 0 retweets

This chap is also proud of his homemade pea sheller. youtube.com/watch?v=6bTRO6… In other news, American peas look weird. Are they really beans?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb Mr. Pea Sheller is the answer to a different question

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb we call big ones 'garden peas' and small ones 'petits pois'

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I think so? Don't make me do more googling, Helen's already had enough pea factoids for one morning

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In conclusion, peas is a land of contrasts. Thank you.

1 favourite 0 retweets

Little leftover scone poo, I love you! #tinyfoodinCPsmassivehands

1 favourite 0 retweets

In reply to @FryRsquared

@FryRsquared @robeastaway or @drvinceknight ?

1 favourite 0 retweets

In reply to @lyd_w

@lyd_w I was just there!

0 favourites 0 retweets

Today's google doodle is celebrating Emmy Noether's 133rd birthday! google.com/doodles/emmy-n…

0 favourites 0 retweets

In reply to @wacnt

@wacnt 7: barium hafnium krypton oxygen silver ununquadium lawrencium

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Oh, there's a third issue of the recreational maths magazine. If only they published in a sensible format rmm.ludus-opuscula.org/Home

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In reply to @aperfect

@aperfect @Cennydd mathjax! mathjax.org
Or the heavy load might scare you, in which case try KaTeX khan.github.io/KaTeX/

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In reply to @JanvierUK

@JanvierUK does this do anything for you? reddit.com/r/animalslooki…

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In reply to @evelynjlamb

@evelynjlamb don't jump on @outofthenorm2's turf: aperiodical.com/?s=apiological

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In reply to @evelynjlamb

@evelynjlamb @outofthenorm2 if only he'd waited a little bit longer before publishing!

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In reply to @tim_hunt

@tim_hunt @wacnt jings! In that case: lawrencium oxygen zinc krypton rutherfordium silver molybdenum

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Newcastle @MathsJam is tonight! 7pm at the Charles Grey pub. I've been rubbish at sending out reminders. Oh well!

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In reply to @mathemaniac

@mathemaniac what's that from?

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@mrscott_edwards @mathemaniac do you know what it's called?

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@mrscott_edwards oh well! Thanks anyway

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In reply to @stecks

@stecks @standupmaths well, now I know how I'm ending my next proof by counterexample. #notallintegers

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Oxford Journals websites are horrendous to use. Where is the archive? Where is the submit link? Open access terms? #aaaarggggg

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Welp, Oxford Journals now thinks I'm Mrs. Perfect.
HIRE A WEB DESIGNER.

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Oh wow, and it sends me my password in plain text every time I change my profile. Good job I made up a new one!

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Londoner on the Metro complaining about the layout of the lines. "It's topologically equivalent to the circle line!", I'm desperate to say

3 favourites 1 retweet

Spent arguably too long solving the @chalkdustmag crossnumber. I am now the owner of a very big IPython notebook.

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For how long has apple and blackcurrant squash contained plums? This new Robinson's tastes odd.

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Questions I'm editing often use "males" and "females" as generic mutually exclusive groups. Can you suggest a drop-in replacement?

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So far I have "marmite lovers" v "marmite haters" and "NUFC supporters" v "right-minded citizens"

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In reply to @kt_ncllt

@lyd_ncllt ooh, I like mods v rockers

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Crikey O'Reilly, these stats questions are all so needlessly heternormative!

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In reply to @owens_bill

@owens_bill one question was about the average time spent on the phone, and I can't be bothered to rewrite all that!

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In reply to @owens_bill

@owens_bill I suppose I could go with nationalities or regions - northerners vs southerners, etc.

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In reply to @icecolbeveridge

@icecolbeveridge they need to be a) people and b) realistic

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It pains me to leave all these instances of `dx` and not change to `\; \mathrm{d}x`. Must be efficient! Must not get distracted by JUSTICE

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Very good! "@ColinTheMathmo: @christianp jugglers and non-jugglers ??"

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In reply to @robinhouston

@robinhouston spitting/sobbing - crying so hard that the tears shoot across the room?

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In reply to @ColinTheMathmo

@ColinTheMathmo I don't know, but I once offended an estate agent by pointing out the many grammatical errors in the lease I was signing

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In reply to @lyd_w

@lyd_w I have yet to win my fiancé over to this line of thinking

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In reply to @christianp

@lyd_w um... fiancée

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In reply to @lyd_w

@lyd_w yes, like this

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In reply to @lyd_w

@lyd_w oh, it regularly reaches the top of the table

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In reply to @poveryant

@poveryant yep, going to fix that now

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In reply to @gingerbeardman

@gingerbeardman superb!

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In reply to @SeeNewcastleUK

@SeeNewcastleUK nice use of a filter to reduce the grimness

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@katemath go with it: get a load of Phoenix Wright "OBJECTION!!!" stickers

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@katemath (this US reference is lost on me)

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In reply to @ColinTheMathmo

@ColinTheMathmo @gingerbeardman just googled it for you: wkhtmltopdf.org

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Current status: workbench

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In reply to @futurebird

@futurebird you might like @peterrowlett's worksheet theme for @NclNumbas - e.g. numbas.mathcentre.ac.uk/exam/764/sffs-…

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This is such a cool tune youtube.com/watch?v=TZp_nG…

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Life achievement: I'm an original source in a wikipedia article en.wikipedia.org/wiki/MathOverf…

3 favourites 1 retweet

Gathering data for my new app, which offers betting advice based on horses' star signs: Astrologee-gee.

1 favourite 2 retweets

@PerudoJedi I'd be surprised if there was a noticeable difference

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It's 2015 and I can't open two Excel spreadsheets in separate windows

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In reply to @yanoak

@yanoak yeah, worked that out. Needlessly obtuse though

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A question occurred to me in Peckham this weekend: which is a better offer - "all items £1", or "many items 98p"?

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In reply to @CounterOfSheep

@ajkiddle when I'm only buying a few things, I like to think of the mad project that would require all of them

1 favourite 0 retweets

In reply to @DanGMartin1

@DanGMartin1 @MathsJam it's in big letters on the website: Tuesday 21st of April mathsjam.com

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In reply to @robinhouston

@robinhouston it makes your point even stronger.

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Apparently at some point I bound the calculator button on my keyboard to "shut down".

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In reply to @alisonkiddle

@ajk_44 @stecks excitement is hyperexponential

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In reply to @C_J_Smith

@C_J_Smith @icecolbeveridge sounds like a cause for an aperiodical round-up post

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April

Suppose you forget the first 294 decimal digits of pi. Don't worry! You can use the rest to get within 0.00033 of the true value!

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In reply to @icecolbeveridge

@icecolbeveridge @CardColm I wonder how many times the title of "world's oldest person" has been transferred without the incumbent dying

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In reply to @icecolbeveridge

@icecolbeveridge @CardColm I was thinking more along the lines of documentation coming to light that proves someone is older/younger

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.@pkrautz is there a reason the MathJax on a yellow background here - mathoverflow.net/questions/2015… - looks less heavy than the maths on white?

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In reply to @sxpmaths

@sxpmaths ooh, I'm writing a load of computer-based coding theory questions at the moment

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Shopping for a new lunch bag. I wish they made a larger one of these! amazon.co.uk/Skip-Hop-Zoo-L…

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I've found another silly π sequence: best approximations to π found by forgetting the first a(n) decimal digits of π oeis.org/A256516

1 favourite 2 retweets

In reply to @pkrautz

@pkrautz do I mean green? The bit with the accepted answer

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I think I discovered a new fact about the 1-counting sequence, A000120! I did some real maths! oeis.org/A000120

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The dog has had a cool haircut and doesn't need our rules any more.

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In reply to @ColinTheMathmo

@ColinTheMathmo because Google broke everything trying to get people to use google+. The Gallery app should work without google+.

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In reply to @ColinTheMathmo

@ColinTheMathmo "gallery" is the original photo app. "photos" is the google+ one, that happens to also open local photos

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In reply to @stecks

@stecks @outofthenorm2 I've finished this month's puzzlebomb but I don't feel satisfied. Did I need 1a? It just came out as a side-effect

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In reply to @JanvierUK

@JanvierUK wow, that's really really good!

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In reply to @drvinceknight

@drvinceknight snap

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Thought the chocolate in the cupboard was dark but it turns out to be milk. Who cares, I'm making ganache anyway.

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In reply to @JanvierUK

@JanvierUK I just made this distinctly middling effort

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In reply to @outofthenorm2

@outofthenorm2 @stecks not sure. I think it unsettled me throughout the whole solution - I wanted to use it to check my other answers

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In reply to @outofthenorm2

@outofthenorm2 @stecks but, because of the nature of the clue, I couldn't

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I had a horrible dream that I accidentally signed up for LinkedIn because of a bug in Windows 8. *shudder*

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In reply to @gingerbeardman

@gingerbeardman OK. I don't.

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I love accidentally asking my computer for 5^8 complicated objects. It definitely doesn't crash it.

1 favourite 0 retweets

In reply to @Jisc

@Jisc your futurist doesn't know how to embed tweets?

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Yet again, 2*2=2+2 leads to confusion

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In reply to @ColinTheMathmo

@ColinTheMathmo this one: 2

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You know when you avoid a particular problem-solving method all day because it looks like an off-by-one error gold mine? That was me today.

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Copious pages of incorrect alternate methods and about six hours of my life, all to avoid counting properly. Doesn't feel like time wasted.

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In reply to @icecolbeveridge

@icecolbeveridge @ajk_44 that blew my mind in sixth form

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@Sara_Tindall bravo!

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In reply to @jjaron

@jjaron I suddenly feel a strong urge to insert a floppy disk in my PC and listen to it grind away

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In reply to @jjaron

@jjaron I don't. It seems I have PC dysphoria.

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In reply to @jjaron

@jjaron yisssss

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LIES

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Has anyone made an enigma machine out of a marble run yet?

1 favourite 2 retweets

In reply to @ReasJack

@ReasJack @TimandraHarknes @DrLucyRogers ooh, there's something to spend the afternoon doing

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Today is my wedding day (highly significant, p<0.0001)

12 favourites 1 retweet

In reply to @JanvierUK

@JanvierUK it is!

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In reply to @JanvierUK

@JanvierUK someone from my primary school class got married on Easter Sunday

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In reply to @icecolbeveridge

@icecolbeveridge adding a relation, one's complement, etc etc

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Just tried to change my Twitter name to my new combo-breaker double-barrelled surname, but it is too long. Boo.

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This wouldn't have been a problem if we'd gone with Lawfect or Person, like I wanted

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In reply to @ColinTheMathmo

@ColinTheMathmo @MrHonner @CmonMattTHINK this is why MathML has a load of invisible operators w3.org/TR/MathML3/cha…

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In reply to @stecks

@stecks /Sci-,{2,}/

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In reply to @futurebird

@futurebird I'm trying to think of a game that *can't* be won with non-transitive dice. The usual games just *probably won't* be won

2 favourites 1 retweet

In reply to @robeastaway

@robeastaway superb!

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In reply to @robeastaway

@robeastaway sometimes I feel a bit offended the maths questions are so easy and then I remember they're undergrad level

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In reply to @robotmaths

@AdamCreen @robeastaway there was one on hypotheses too

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In reply to @KielderCatering

@KielderCatering will you be at any markets this weekend? Trying to put together ingredients for a birthday hamper

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In Newzoids, why does the pope have an Italian accent?

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I redid my homepage a while ago. It's very big. somethingorotherwhatever.com (like me)

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In reply to @Bishnavitch

@Bishnavitch you're losing your touch

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @alexbellos @jamesgrime I prefer that one when it's wizards on a bus

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @alexbellos @jamesgrime maybe I misremembered. Khovanova has a paper at arxiv.org/pdf/1210.5460.… but maybe there's another

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @alexbellos @jamesgrime yeah. I'm sure I've seen one similar to yours before though. Wizards puzzles abound.

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In reply to @edsouthall

@solvemymaths I can do it without Pythagoras, but can I do it without fractions?

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@ProfKinyon that could possibly describe gold OA, but not green or diamond

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@ProfKinyon OK, yes.

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @alexbellos @jamesgrime @aperiodical Tim Gowers has concocted a mad transfinite version plus.google.com/+TimothyGowers…

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In reply to @WWMGT

@WWMGT what does "geometrically similar" mean? Congruent to?

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In reply to @edsouthall

@solvemymaths oh, I got 96. I'll redo it.

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In reply to @edsouthall

@solvemymaths never mind, I got 96 square units, forgot the question asked for proportion shaded

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths I'm going to do a #thatlogicproblem round-up on the aperiodical, hopefully tonight. Can you send the PDF of your one?

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In reply to @edsouthall

@solvemymaths I'm happy I've found a nicer solution - before I added three triangles and a thin rectangle, now add two tris and sub one tri

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In reply to @TimHarford

@TimHarford that's a plot of a derivative - would it look less silly if you plotted the integral?

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In reply to @ColinTheMathmo

@ColinTheMathmo maybe take it out to the beach tomorrow, buy it an ice cream and tell it you love it

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Searched for "deduction" on google images; found... just *so much* Sherlock slash

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Following our nuptials, we now have 14 egg cups. Everyone round ours for eggs and soldiers tomorrow?

1 favourite 0 retweets

In reply to @CardColm

@CardColm I often use it to tell the tweeter I liked their tweet, if I don't want it on my timeline

2 favourites 1 retweet

In reply to @CardColm

@CardColm yep

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In reply to @ColinTheMathmo

@ColinTheMathmo you need a plan to get those things off that disk anyway, don't you? The disk will fail mechanically at some point

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In reply to @ColinTheMathmo

@ColinTheMathmo either run the HDMI cable through a capture box, or dd the disk fs and await clever sorts who can get the recordings out

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I've rounded up some of the more mathematically interesting offshoots of the #thatlogicproblem hullabaloo twitter.com/aperiodical/st…

2 favourites 1 retweet

New phone. Search "android lock screen apps". Click on headline "N best lock screen apps" with smallest N. #listicles #content

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In reply to @ColinTheMathmo

@ColinTheMathmo selection bias: your selections are terrible

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New sign on my office door!

2 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I've eaten more than that before, with very few ill effects. You may need to scale for our relative weights though

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It's Newcastle @MathsJam tomorrow! I'll be there, and so will some other maths bods. All welcome. Charles Grey pub, 7pm onwards.

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I stand by it. Sick of pi. twitter.com/stecks/status/…

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In reply to @HilariousCow

@HilariousCow @OneOneOneTwo3 is there any chance that app is in a state I could use it at MathsJam tomorrow? Otherwise I'll print cards

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In reply to @HilariousCow

@HilariousCow android would be best, but can do windows

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In reply to @HilariousCow

@HilariousCow (and if you're in London, you might want to go to the London meeting - you'll get plenty of feedback)

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In reply to @HilariousCow

@HilariousCow player v player would be best. Don't go to too much trouble - I can play with cards!

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Another integer sequence! I was amazed this one wasn't already in oeis.org/A257054

2 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson @elinoroberts they've set the bar for "unusual" very low there

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In reply to @sxpmaths

@sxpmaths that reads like a story from the 90s

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In reply to @BBCTaster

@BBCTaster can I give your rating widget a rating?

1 favourite 1 retweet

In reply to @MrAllsopHistory

@MrAllsopHistory @BootsUK @MissBsResources @Nat_Numeracy If you buy that with another product worth more than £8 it's still a good deal

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Moodle is lovely, but every time I go into a new bit of it I lose hours trying to find adequate documentation. Currently: html_writer ‽

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In reply to @tim_hunt

@tim_hunt does this thread still reflect the current state of affairs with html_writer? moodle.org/mod/forum/disc… Where should I look?

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Come on Geordies, show some interest in uninhibited nerdery! twitter.com/FOTSN/status/5…

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Attending a postgrad talk because it's about some interesting group theory. I don't recognise half the students. I am #old

1 favourite 0 retweets

Speaker has made the classic rookie mistake of making the talk accessible to non-specialists by omitting the content

1 favourite 0 retweets

In reply to @Kit_Yates_Maths

.@Kit_Yates_Maths can it be over yet? I'm about to go to bed and all I can see is your face. Seriously!

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths THAT'S THE CREEPIEST TWEET I'VE EVER RECEIVED

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Today: cleaning up my @moodledev SCORM changes and separating them out so they can hopefully go into the official source

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In reply to @aperfect

@aperfect oh no! At least yours is indoors, isn't it?

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I've just realised I can remap dark red in my console so my colourblind eyes can actually see it. Hooray!

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths have you seen plus.google.com/explore/whatso… ?

0 favourites 0 retweets

In reply to @mutedestro

@mutedestro @komiga yes!

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@katemath @divbyzero or: how rare it is for teaching maths to be worth your time when you can be a model

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In reply to @divbyzero

@divbyzero @katemath (lost track of the replies thread) - that blog could absolutely go in the @aperiodical. As infrequent as you like :)

1 favourite 0 retweets

In reply to @brittneybean

@brittneybean so by implication the other parties have bigger black holes, or the IFS expects the government to change their spending plans?

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In reply to @MouldS

@MouldS what does "opposite" mean, if the face is not a regular polygon?

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In reply to @MouldS

@MouldS do you want a vertex to be on the normal out of (your choice of) centre of the face, or just inside the polygon when projected down?

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In reply to @MouldS

@MouldS wasn't there a reason the trick for general polygons doesn't work on polyhedra? Otherwise, a method to make them is pretty obvious

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In reply to @MouldS

@MouldS given an hour or so with a 3d modeller tomorrow I reckon I could have a go at one

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2015's best video abstract? youtu.be/Mqd6W0TW9D0

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"My dog's got no tail"
"How does he wag?"
"He doesn't feel like it"

Don't cut your dog's tail off, guys

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @aperiodical oh, it includes the old posts. Oops

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In reply to @peterrowlett

@peterrowlett I reckon around 950 posts since we officially opened, which is ~5.9 per week. Surprising!

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In reply to @C_J_Smith

@C_J_Smith congratulations! Everyone's doing it, it seems!

1 favourite 0 retweets

aaarg I wrote out a list of the primes up to 100 and included the Grothendieck prime! I had to go to wikipedia before I found it

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In reply to @theoremoftheday

@theoremoftheday aka oeis.org/A038800, I see. Not sure if I like it.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @C_J_Smith yeah yeah, you were married before it was cool, you relationship hipster

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In reply to @theoremoftheday

@theoremoftheday I've misunderstood. What are the 15 numbers?

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In reply to @theoremoftheday

@theoremoftheday the pic says "just remember 15 numbers" - does that mean 2357,1379,39,... ?

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In reply to @brittneybean

@brittneybean yes, with gifpop.io ?

1 favourite 1 retweet

Well, that's the first time I've got to a paywall and not even been able to read an abstract scitation.aip.org/content/aapt/j…

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston I think the problem is that it was being considered for listing.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston there's an unreformed .gov.uk site explaining the rules for demolition - planningportal.gov.uk/permission/com… - you have to give notice

0 favourites 0 retweets

In reply to @helenarney

@helenarney is "a day in the life of a Klingon translator" one of the DVD extras? I'm enjoying imagining their face when the phone rang

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Today's test user

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May

In reply to @peterrowlett

@peterrowlett @mathhombre .. which is linked in the post. Just to check, John - are the links hard to distinguish visually from normal text?

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In reply to @peterrowlett

@peterrowlett @mathhombre I'm massively colourblind, so it would be hypocritical to use a hard-to-see colour on my own site!

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In reply to @mathhombre

@mathhombre @peterrowlett oh good! Carry on as you were

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The ironing pile was so big that garments at the bottom were turning into coal.

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In reply to @CounterOfSheep

@ajkiddle yeah, I think that's the natural candidate for Most Unfortunate Word in Tech

1 favourite 0 retweets

After two days of leafletting, the dog has had enough of socialism and is joining the tories in the morning

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I'd be amazed if three quarters of people never had anything troubling them

0 favourites 0 retweets

After a friend squished an extremely big spider: is there a formula for the size of a spider's prey as a function of the spider's size?

1 favourite 0 retweets

I've been given a demo account on a Pearson product. This is what the link I was given shows. Find the sign-in link!

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If you said "CP, there is no way to sign in from that page which is asking you to sign in", you win.

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Nope, I've tried clicking everything. twitter.com/davidwees/stat…

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OK, I've signed in. Now I'm bravely stepping into the 90s

1 favourite 0 retweets

@TynemthFoodFest are dogs welcome?

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Sometimes I feel I'm not doing the best I could be, then I look at Pearson and remember they're taking fistfuls of cash for broken stuff

1 favourite 0 retweets

Guess where the "See what ..." button goes (never mind that the product names don't match)

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If you guessed "a page for teachers listing white papers and research articles, you are a winner! And definitely not Mastering's webmaster!

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc @Space_Station at least it's behind the mother of all air gaps?

4 favourites 1 retweet

Current status: deciding if research has been done on a topic by looking at the bibliography in @peterrowlett's thesis

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@TynemthFoodFest I think your site's been hacked - there's a link to "hardcore xxx orn" at the top of the page

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while idly looking at the Python grammar - docs.python.org/3/reference/gr… - I noticed `[expr for x in iter_1 for y in iter_2]` is valid. Hmm!

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall I'm sure I've read that before. Maybe it's just something that slips out of my head.

0 favourites 0 retweets

I got carried away fiddling with @Andrew_Taylor's majority coalition calculatron. christianp.github.io/majority/

0 favourites 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor why would I get rid of it? BTW, do you want a pull request?

0 favourites 0 retweets

something something bowling station something hit a strike for democracy

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Inconceivable!

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In reply to @jjsanderson

@jjsanderson that's my plan

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This morning: booking in a hip replacement, keyhole heart surgery and some depression therapy while they're still free

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After that, off to the pond to pick out the swans I'm going to buy on the cheap when they're privatised

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Hard-working families can still look at my swans for free, or now they can join Swan Plus+ for a fee and feed them anything they like

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I'd like to reiterate that should I win the swan franchise, I have no plans to sell them to a French butcher and replace them with mallards.

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Yes I have advised the government that demand for swans is at a historic low so they should be priced accordingly, but there's no conflict

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The part of my personality which independenty advises the government about swans and the part that wants to buy them are completely separate

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still tweeting nonsense about swans to distract from the dystopia

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The law to forbid geese and all waterfowl other than swans from using Britain's waterways will be a key plank of the government's programme

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Obviously nobody will buy the swans if anyone can just look at a goose, which is basically a short fat swan, for free

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In order to protect swan owners' investments, I have advised the government to allow them to impose a charge for looking at swans

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Britain's benefits claimants are workshy scroungers. That's why they'll be required from June to show they've looked at 5 swans each week

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Oh god, they're actually going to sell off the swans, aren't they? I don't think I can be hyperbolic enough today.

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In reply to @sxpmaths

@sxpmaths @DrBennison I can! Numbas is at numbas.mathcentre.ac.uk, and the workshop info is at sigma-network.ac.uk/numbas-worksho…

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In reply to @DrBennison

@DrBennison @sxpmaths all runs in the browser. Can integrate with a VLE to track scores, but runs standalone fine. Or make printed sheets!

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"Does Not Commute" is a fun game and an excellent pun play.google.com/store/apps/det…

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In reply to @JSEllenberg

@JSEllenberg it turns out democracy is incompatible with Britishness: we're more concerned about what people think than expressing ourselves

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@TynemthFoodFest do you know your website is broken? I was trying to look up the programme for today

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It's not going well.

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In dog years, our puppy is now a teenager. I live in fear of stumbling across her tumblr.

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In reply to @sxpmaths

@sxpmaths £299 to learn about free software?!

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Newcastle @MathsJam is next Tuesday, 7pm in the Charles Grey. Puzzles and games in a pub, all welcome. @scienceatlife @NCLMathsStats

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I'm nearly 30, and this is what I bring my lunch to work in. It's less disgusting when I have a sandwich

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In reply to @divbyzero

@divbyzero is this like the numbering of dihedral groups all over again?

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After what feels like an age spent dealing with Life (not unenjoyably), I've put two posts in the @aperiodical news queue.

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In reply to @icecolbeveridge

@icecolbeveridge did you ever do a blog post about fishy election graphs?

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Homepages of the 4 open access e-assessment journals I found. They all look terrible. Get what you pay for, I suppose

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In reply to @SITP_NCL

@SITP_NCL Next Tuesday, MathsJam is a monthly meeting of maths enthusiasts in a pub. Might appeal to you! mathsjam.com

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In reply to @techforlifeuk

@campusnorthuk Next Tuesday, MathsJam is a monthly meeting of maths enthusiasts in a pub. Might appeal to you! mathsjam.com

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In reply to @Andrew_Taylor

@Andrew_Taylor I'm reminded of the episode where they say they only recorded one "meep" for road runner

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In reply to @SITP_NCL

@SITP_NCL yes, I certainly am!

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In reply to @eAssess

@eAssess it could start by allowing access to articles without logging in

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Current status: I got to 19 playing Twenty. THAT'S NOT TWENTY! twenty.frenchguys.net

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In reply to @Andrew_Taylor

@Andrew_Taylor feed it a book on markov chains

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In reply to @samholloway

@samholloway "Christian is a little bit disappointed on the A1"

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Difficulty level: autism

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In reply to @komiga

@komiga I'm saying maybe I'm particularly well adapted to this game

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In reply to @komiga

@komiga ?!

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In reply to @komiga

@komiga yep

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Spot the difference. I see these every day on my way to work and it's been annoying me for weeks.

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In reply to @eAssess

@eAssess just downloaded and installed the OJS software. It's these two checkboxes in the Journal Manager page

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In reply to @christianp

@eAssess I was looking around because I have a paper that would actually be a good fit for IJEA, but...

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In reply to @christianp

@eAssess ... I don't count "viewable after registering" as "published". Might as well put it on my own blog!

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In reply to @CounterOfSheep

@ajkiddle #inadvertentpunlife

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In reply to @aPaulTaylor

@aPaulTaylor that only works if you omit 'It's "tomorrow I'll learn".', but requires the reader to have come up with the same joke as you

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In reply to @eAssess

@eAssess peer review is no good if they're the only people who see it! Thanks for looking into the login thing

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In reply to @mscroggs

@mscroggs @chalkdustmag attributions for the puzzles would be nice. For example, Tanya Khovanova came up with "where is the party?"

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In reply to @chalkdustmag

@chalkdustmag @mscroggs super!

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This dude is loving his commute home! (don't worry, I'm in the passenger seat and we were stopped)

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I got to 20x4 playing Twenty. Pretty good going! twenty.frenchguys.net

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To explain a recent tweet: one theory about autism is we have weak central coherence en.wikipedia.org/wiki/Weak_cent… which might make me better at 20

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In reply to @jjaron

@jjaron welp, that was a fun adventure. Feel a bit queasy!

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In reply to @jjaron

@jjaron what's worse is, as soon as I did it I realised I already knew what it did

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In reply to @haggismaths

@haggismaths One for "What's on my Blackboard" twitter.com/sam_james30/st…

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"Moving to javascript made writing low-level code much easier." - 2015, ladies and gentlemen.

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In reply to @GhostMutt

@GhostMutt incidentalcomplexity.com/2014/10/16/ret…, under "August"

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Further adventures in high-quality journals

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In reply to @ColinTheMathmo

@ColinTheMathmo I have a hotel room metric: total distance furniture must be moved to get access to a socket

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In reply to @JamesMoosh

@JamesMoosh crikey!

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In reply to @ibdknox

@ibdknox @GhostMutt yep: previously, JavaScript was about as high-level as you could get

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In reply to @sxpmaths

@sxpmaths does anyone not?!

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Are there any Amsterdam @MathsJam-ers? I'll be in Amsterdam on the 23rd next month, which is MathsJam night

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In reply to @DeDaanmans

@DeDaanmans I'm actually travelling back from Zeist. My flight is 22.05 - if I can be at Schiphol by around 21.00, we could meet and do math

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Here's a data mining challenge: find the flight that lands furthest in the past (if you don't know about timezones)

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e.g., when I fly back from Amsterdam I land 15 minutes after I take off. If I was flying to London Southend, I'd land exactly as I took off

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aha! AMS->Norwich arrives 10 minutes in the past flightexplorer.schiphol.nl/web/flight-exp…

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WHY IS MICROSOFT WORD SO MASSIVELY RUBBISH

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Time until LaTeX: 7 minutes

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In reply to @alexbellos

@alexbellos the equation after "we can tidy" has +11+10 instead of -11-10

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Teacher friends, please settle an argument: what are your chances of getting a job in FE with a PGCE but no QTLS (or QTS)?

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In reply to @CardColm

@CardColm I'd be amazed if Martin didn't know of him

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In reply to @CNE98MFC

@CNE98MFC what subject(s) were you teaching? Did the people with no qualifications have other experience?

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In reply to @CNE98MFC

@CNE98MFC OK thanks, I'll pass that on

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In reply to @ColinTheMathmo

@ColinTheMathmo @MathJax I was trying to reproduce this yesterday and only managed it on mobile. I can help debug in the future if you want

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In reply to @ColinTheMathmo

@ColinTheMathmo @MathJax yeah, no problem. I'm in bed currently.

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Bank holiday snug

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In reply to @DeDaanmans

@DeDaanmans cool! Do you know anywhere good near a train station? I should leave Zeist around 16.30

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Just discovered you can't name a folder 'aux' in Windows, because DOS: coderanch.com/t/131585/gc/Fo…

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In reply to @gingerbeardman

@gingerbeardman crikey, what level is that?

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In reply to @gingerbeardman

@gingerbeardman I got past 200 this morning and I'm beginning to lose enthusiasm. Does it have an end?

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AAARGGG. Overwrote all the work I did last night because I forgot I didn't commit on the remote, and forced a checkout. Pooooo

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In reply to @ColinTheMathmo

@ColinTheMathmo what model phone are you using?

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Today's fun fact: if an eejit web developer sets the height of a vimeo embed to 0, vimeo returns a 403 on the request for the video file

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Is this so people can't embed hidden videos in their pages to bump the viewing numbers?

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Terrible colours on this: they look the same to me. Since one's the reflection of the other, why even include two?

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In reply to @CounterOfSheep

@ajkiddle next-level Columbus cubing: plus.google.com/+AndrewStacey/…

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In reply to @jgrahamc

@jgrahamc lawks, that's dystopian!

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In reply to @d_spiegel

@d_spiegel I suppose it puts it on iPlayer for another week?

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"Fruit Ninja: Math Master" - am I curious enough to spend £4? play.google.com/store/apps/det…

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The dog and my wife are having a collective wail about the patriarchy. There's nothing they can do about it though bwahahaha!

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June

Very exciting! From magicwhiteboard.co.uk

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If my wife wasn't massively allergic, I'd get the blackboard in a heartbeat

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In reply to @FOTSN

@FOTSN @standupmaths @stecks @ColinTheMathmo Penrobe?

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In reply to @FOTSN

@FOTSN @standupmaths @stecks @ColinTheMathmo #tenuousfrenchpuns

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I'm in Amsterdam! Not for long though: soon, I'll be in Bergen!

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Norway! Yes, I'd give those fjords a prize

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I'm a bad dogfather: it's the dog's 1st birthday and I'm away. She looks like she's handling it stoically anyway

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Britain! And it's summer! You can shove your fjords, I want the sun

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In reply to @Andrew_Taylor

@Andrew_Taylor I don't get the capital Y - twitter usernames aren't case-sensitive, and it makes it look even more spammy

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In reply to @robeastaway

@robeastaway @curious_nick "real world maths"

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After too long playing the others, I've made my own numbers-in-a-grid game. It's about sequences christianp.github.io/sequences/

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In reply to @theoremoftheday

@theoremoftheday any arithmetic sequence will do. Doesn't matter where the numbers are in the grid

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In reply to @theoremoftheday

@theoremoftheday yeah, I can't think how to word it without using mathmo terms

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In reply to @mutedestro

@mutedestro Use the number which is your current level (ie to move to level , use a 5)

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In reply to @noneatnamesleft

@noneatnamesleft yes :)

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In reply to @noneatnamesleft

@noneatnamesleft or if you get 1..n and n is your current level, it's n^3. Might get rid of that - it was better in an old version

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In reply to @noneatnamesleft

@noneatnamesleft indeed. I was surprised how little tuning it took once I noticed that was a good tension

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In reply to @noneatnamesleft

@noneatnamesleft no, it doesn't. Interesting question if it's possible to have no legal moves - difference of 0 is allowed

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In reply to @noneatnamesleft

@noneatnamesleft something something Tao-Green theorem? I know @TweetsofCushing spent a long time thinking about progression-avoiding sets

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@ronalddotgl @noneatnamesleft you could if those were all on the board

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OK, it looks like the game is playable to non-me humans. Here's a target.

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In reply to @jiyameng

@jiyameng 24 (if you reload the page, I've just added the level to the game over screen)

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In reply to @jiyameng

@jiyameng use your current level number in a sequence

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In reply to @noneatnamesleft

@noneatnamesleft sadly, no

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Oh my twitter.com/jiyameng/statu…

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@ronalddotgl well done :)

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In reply to @aPaulTaylor

@aPaulTaylor you can use lots of the same number

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Today's test user

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In reply to @icecolbeveridge

@icecolbeveridge have I done Testeranza Spalding yet? That's a good one

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Good grief! twitter.com/thomas_bland/s…

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Jiminy willikers! twitter.com/jiyameng/statu…

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In reply to @noneatnamesleft

@noneatnamesleft aha. I considered trailing back through thousands of tweets, but...

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In reply to @jiyameng

@jiyameng @thomas_bland how are you two doing this? I haven't got much further than 2 million yet

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In reply to @jiyameng

@jiyameng @thomas_bland how many games are you playing? That's astronomically unlikely!

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@Rokker816 christianp.github.io/sequences/

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@Rokker816 uniformly random from the range 1..level

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In reply to @thomas_bland

@thomas_bland @jiyameng hm. I'm still missing a key ingredient

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Nearly! @thomas_bland @jiyameng

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In reply to @jiyameng

@jiyameng @thomas_bland I tried, but didn't have enough moves left. This was my last move

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I've added (local) high scores to #sequencesgame christianp.github.io/sequences

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In reply to @jiyameng

@jiyameng no, I'll add one

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Wahey! I'm feeling good about this one @jiyameng @thomas_bland

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In reply to @noneatnamesleft

@noneatnamesleft @jiyameng @thomas_bland my kingdom for a 1!

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In reply to @christianp

@noneatnamesleft @jiyameng @thomas_bland ok, I think that'll do

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I'm trying and failing to turn my simple HTML+JS game into an android app. Phonegap seems to do animations really slowly. What should I use?

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Game Closure is a mess of nonsense that I can't get to work. Boohoo.

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In reply to @jiyameng

@jiyameng @thomas_bland OK, first one to a billion gets an ice cream

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In reply to @pkrautz

@pkrautz requires OSX, and only seems to build iOS apps at the moment

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One of these mallards is parked incorrectly

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A teeny tiny integer sequence review is happening with @TweetsofCushing

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In reply to @stecks

@stecks small in the time dimension?

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de Bruijn sequences used to crack codes again, but this time remote garage door locks! it.slashdot.org/story/15/06/05… @jamesgrime

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Previously in de Bruijn sequence lock cracking news: youtube.com/watch?v=85-PsY…

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In reply to @standupmaths

@standupmaths markers inexplicably not clickable. Also, it doesn't show a Voronoi diagram of nearest gig, like the closest MathsJam map

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In reply to @christianp

@standupmaths oh, now they're clickable. Ooerr.

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Today, I found some old code that I wrote before I'd realised this was a fact: stackoverflow.com/questions/7000…

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In reply to @FOTSN

@FOTSN I demand a poster teaching the three Ms: maths, music and metalwork!

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In reply to @kirel

@kirel there are reasons you might want it to work the way it does - for example, if sorting/grouping by more than one key

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In reply to @icecolbeveridge

@icecolbeveridge that's ridiculous.

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In reply to @OddballDave

@OddballDave haha, that looks ace!

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Happy birthday choo choo! twitter.com/StephensonRail…

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Little question: how many decimal places of precision am I giving this number to: 1.23E-5

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I'm pretty happy it's three significant figures. Do decimal places have any meaning in scientific notation?

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In reply to @icecolbeveridge

@icecolbeveridge ta

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Can any wolfram alpha wizards work out why this is getting me a 2d plot instead of a surface? wolframalpha.com/input/?i=plot+…

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In reply to @FryRsquared

💩@FryRsquared @theoremoftheday @helenjbradley or you can use a pile of poo. The opportunities are endless!

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In reply to @christianp

@christianp because it doesn't depend on n, doiiiiii

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The OEIS has no sequences marked both "easy" and "hard". oeis.org/search?q=keywo… This should be like clopen.

1 favourite 2 retweets

In reply to @j_lanier

@j_lanier @MathPaper on first glance, I'm inclined not to believe it

1 favourite 1 retweet

aaahhhh, building android apps is too hard. Even the phonegap hello world example doesn't work. The docs are terrible. I give up.

1 favourite 0 retweets

In reply to @helenarney

@helenarney I got a Shark one a while ago, and it's really good. Very well designed. Think it's this one currys.co.uk/gbuk/home-appl…

1 favourite 0 retweets

Making a publications page for the @NclNumbas website. Getting it to parse bibtex data would be overkill, wouldn't it?

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So many questions! twitter.com/AVBorovik/stat…

1 favourite 1 retweet

Falling down the rabbit hole of internet left-hander activism indiana.edu/~primate/lspea…

1 favourite 0 retweets

Uffie's album is a good choice for today

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In reply to @ColinTheMathmo

@ColinTheMathmo yep!

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In reply to @Raspberry_Pi

@Raspberry_Pi
"My Raspberry Pi's got no nose!"
"How does it smell?"
"In a limited fashion."

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I have a vague memory of someone, a few years ago, applying the zip algorithm to songs. Was it @jgrahamc?

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Good: getting asked for ID when buying alcohol. Bad: the lady apologising when she sees how old you really are

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Put your problems in perspective with this tiny teeny Rubik's cube: shapeways.com/product/MXFQHL…

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I'm going to America in August. It's all sorted, but I'm terrified I'll spend two days in New York and be too witless to find good food

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An Enigma machine wrist watch!!!!! asciimation.co.nz/bb/2015/03/24/…

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In reply to @peterrowlett

@peterrowlett @stecks isn't it obvious?

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In reply to @stecks

@stecks @peterrowlett yeah, he's a starting pitcher for the Orioles

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I have extreme protanomaly, so @TweetsofCushing challenged me to do that colour vision test. #smashedit

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Yep twitter.com/a_cruickshank/…

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In reply to @ruimvieira

@ruimvieira ooh, is it out? Lovely!

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This contains several very good points about why blackboards are better than whiteboards twitter.com/robinhouston/s…

2 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett @NclNumbas yep, no problem. It began life as an internal report

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In reply to @peterrowlett

@peterrowlett oh god, it's using Open Journal Systems. Lord save us from this terrible software

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In reply to @DeDaanmans

@DeDaanmans are you still up for doing some maths next tuesday?

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In reply to @DeDaanmans

@DeDaanmans super. At Cafe Maria?

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In reply to @DeDaanmans

@DeDaanmans :)

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No Newcastle @MathsJam next week, because I'll be in Holland. But that means...

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FOR ONE NIGHT ONLY, there will be a Utrecht, NL @MathsJam. Tuesday the 23rd, Grand Cafe Maria. mariautrecht.nl

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In reply to @DeDaanmans

@DeDaanmans looks like I'll have to leave at 20:00 at the absolute latest. Can be at Utrecht station (or the cafe) around 17:00

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If an expression simplifier rewrote `x-0` to `x+0`, would you be angry with it? Is it ever worth rewriting `-0` to `0`?

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In reply to @RobertTalbert

@RobertTalbert what kind of exercises do you have in mind?

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In reply to @peterrowlett

@peterrowlett the user interface is very hard to learn

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I'm immensely proud of this: #cherylssweets twitter.com/aperiodical/st…

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In reply to @peterrowlett

@peterrowlett is somebody going to work on the CSS for the journal site? The text is so teeny tiny!

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In reply to @ThomasEWoolley

@ThomasEWoolley yes, that's good, and there's also this vimeo.com/70589461 (which I included in aperiodical.com/2013/08/aperio…)

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Whose idea was it to put a full copy of MathJax in my dropbox? It's taking so long to sync...

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In reply to @JanvierUK

@JanvierUK tell someone else your fears. If they say you're paranoid, you're paranoid.

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The new Hiatus Kaiyote album is really really good

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Reasons matplotlib uses inches instead of centimetres for measurements:

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Tweetdeck is determined not to show me any tweets older than 3 hours. At some point everything just gets folded into "more tweets"

1 favourite 0 retweets

In reply to @TauntonMathsJam

@TauntonMathsJam @MathsJam I haven't been able to edit the map for a while. Should be able to do it soon.

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In reply to @ColorDeck

@ColorDeck you can?! How?

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The number of carries required when working out n^2 by long multiplication

4 favourites 1 retweet

In reply to @benjamintormey

@BenTormey I'ma let you finish, but the omelette I made on Tuesday was the best meal of all time. OF ALL TIME.

1 favourite 0 retweets

4D 79 20 40 46 4F 54 53 4E 20 73 7F 7E 66 66 20 61 72 72 69 76 65 64 21 21 21 03

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In reply to @Derektionary

@Derektionary yeah, but I've got two drafts that the editors seem to have forgotten about, so I didn't feel like submitting it

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In reply to @Derektionary

@Derektionary yeah, I think I put a link in the entry.

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This book by the cartoonist Baudoin and Cedric Villani looks lovely vanityfair.fr/culture/livre/…

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I need to set up a @wacnt but for terrible integer sequences. Here's one: n divides the nth prime

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In reply to @Andrew_Taylor

@Andrew_Taylor "it's just, not cricket"?

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I'm sitting upstairs! On a train! In Holland!

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Two new integer sequences: oeis.org/A258757 is about palindromic powers, and oeis.org/A258756 is about my sequences game

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Really annoying: no electric sockets in the rooms at this conference, so my phone will be dead when I leave

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In reply to @samholloway

@samholloway @aperiodical @MathsJam yeah, we couldn't find a picture of the Stone room. Probably because it's so unattractive

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In reply to @dmh10

@dmh10 can we use that picture in our post?

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In reply to @elinoroberts

@elinoroberts for some reason I read that as "aurochs watch". Not sure why. Very different.

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The Dutch are lovely but when they talk it's like this youtu.be/FcUi6UEQh00

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In reply to @robeastaway

@robeastaway to some more decimal places, the rate required to lose 50% is 2.734% per year, so it's not so bad to round down.

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In reply to @robeastaway

@robeastaway and 2.34 leaves <55%, which you couldn't be blamed for rounding off to nearest 10%. So double rounding error is to blame

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In reply to @robeastaway

@robeastaway well yes, I did think of that but hesitated to say

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In reply to @DrCaroSummers

@DrCaroSummers you've found a bit of Derby without hills?!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @MathsJam not on the website, but I'm in the Cafe Maria in Utrecht tonight with some maths people

0 favourites 1 retweet

In reply to @lismati

@lismati @standupmaths @MathsJam Start one!

0 favourites 0 retweets

In reply to @DeDaanmans

@DeDaanmans? What time can I meet you? I'm going to spend the afternoon being a tourist in Utrecht; where should we meet?

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In reply to @DeDaanmans

@DeDaanmans yes, the station is a good place!

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In reply to @DeDaanmans

@DeDaanmans maybe 5 o'clock?

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Relative floor numbers! What an innovation!

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In reply to @DeDaanmans

@DeDaanmans I'm walking up from the Centraal museum and just round the corner from the Cafe, so can we meet outside there?

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In reply to @FOTSN

@FOTSN am I the 1st to present at an academic conference in a nerd t-shirt? No photos but it was in Holland so there's probs an oil painting

1 favourite 1 retweet

In reply to @FOTSN

@FOTSN the audience appeared unmoved

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In reply to @christianp

@FOTSN but a little bit smaller at the end? Maybe they were an eigenvector.

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In reply to @FOTSN

@FOTSN a couple of people said they liked it. There weren't many mathematicians there

1 favourite 0 retweets

In reply to @christianp

@FOTSN I mean, I was hoping someone would call it degenerate, but that would only be true if NERD=0

1 favourite 0 retweets

Ooh, that's pleasing.

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Decided to try out being more pessimistic, by believing this sequence is finite for a day: oeis.org/A255190

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Idea: mix Cheryl's birthday and battleships, with automatic commentary generated from valid inferences based on players' moves.

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In reply to @peterrowlett

@peterrowlett @stecks @aperiodical like a triangle, we have multiple equally justifiable centres

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In reply to @aperfect

@aperfect lovely day for it! It's miserable up here

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In reply to @libraryncl

@nclroblib @NCLMathsStats here, have this:
⌈ 0 -1 ⌉
⌊ 1 0 ⌋

2 favourites 2 retweets

In reply to @lyd_w

@lyd_w but I am in Edinburgh! O, what terrible fate!

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In reply to @evelynjlamb

@evelynjlamb I approve this message

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Actually, 'banana' is the plural. Just one of them is called a bananum.

4 favourites 4 retweets

Boo! Down with infinite spaces! On this I am UNMOVING. twitter.com/MathCounterexa…

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In reply to @drvinceknight

@drvinceknight on a Sunday?

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Today: looking up artists whose debut albums I own, to see if they've made more. Carla Morrison and Sarah Jarosz: yes!

0 favourites 0 retweets

In reply to @MrsWilliamsAC

@MrsWilliamsBP email Katie at manchester@mathsjam.com

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight oh dear. Sensible working hours are important

1 favourite 0 retweets

I speak accidental truth! twitter.com/nillie_kj/stat…

0 favourites 0 retweets

In reply to @GreyAlien

@GreyAlien I went there a couple of years ago. Loved it! I must go back soon

1 favourite 0 retweets

In reply to @jjaron

@jjaron IS MARS FLOODING?

0 favourites 0 retweets

What a sad bananum.

1 favourite 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth I used to watch the repeats of that in the morning before school!

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We must raise school standards so we never again get such a fantastically statistically illiterate education secretary

3 favourites 1 retweet

In reply to @CounterOfSheep

@ajkiddle ah yes! I visited that a few years ago to settle a bet about the original colour of carrots

1 favourite 0 retweets

In reply to @CounterOfSheep

@ajkiddle I knew about it before I knew about you! To tell you all of those things would take a long time

1 favourite 0 retweets

July

In reply to @standupmaths

@standupmaths @numberphile of course, I immediately tried to sloanewhack the associated sequence. It's already in: oeis.org/A057896

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths STOP PRESS: people born in 30 BC would be 3 in 3^3 BC, 5 in 5^2 BC, and 15 in 15 BC!

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!!! twitter.com/alexallmont/st…

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Thought I was going mad for a moment, but I made the canonical error: cos(32 radians) is very close to cos(32 degrees).

1 favourite 0 retweets

More momentary madness: given 51° and 39°, wondered why sin and cos were the same but swapped, then did some thinking

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Something odd is happening today: internet radio stream broke exactly when I muted my speakers.

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I am king of coincidences. Koingcidences.

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In reply to @ruimvieira

@ruimvieira I think you just start receiving mail addressed to the King of Coincidences

1 favourite 0 retweets

In reply to @JamesMoosh

@JamesMoosh there isn't one. For any e, you can find an n with difference less than e. I've found record-setters: oeis.org/draft/A259621

1 favourite 0 retweets

In reply to @pkra

@pkra how meta: the big image on the mathjax frontpage contains a computer screen showing the old mathjax frontpage.

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Welp, the thunder has arrived so I'm heading home before @My_Metro breaks

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Ladies and gents, I failed: the metro has stopped because of a lightning strike

2 favourites 0 retweets

In reply to @FryRsquared

@FryRsquared work your way through Dundes et al, "Foolproof: a sampling of mathematical folk humor" ams.org/notices/200501…

1 favourite 0 retweets

In reply to @jamesgrime

@jamesgrime Julia Turing has written some comments on your imitation game FAQ aperiodical.com/2014/11/an-ala…

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In reply to @jamesgrime

@jamesgrime yeah, but she's got previous in agitating about him

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In reply to @jamesgrime

@jamesgrime I have a feeling you wrote about that in one of your other posts. Did you?

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In reply to @DrBennison

@DrBennison here: sigma-network.ac.uk/numbas-worksho… it's on Monday and Tuesday though

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An oral history of computing, as told by people attempting to override scrollbars.

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My dog is not mad: while this Englishman has been outside reading, she's been keeping cool here

5 favourites 0 retweets

In reply to @christianp

@christianp just looked at that photo again and I'm beginning to wonder: has my dog been using my laptop?

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I think, given that she was strongly encouraged to go outside, the preponderance of the evidence points to her not being mad

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This is fascinating but I can't muster the energy to write at length about it bailii.org/ew/cases/EWCA/…

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In my opinion, the judge has got it exactly right, and hasn't redefined what 1 means, as claimed by the Indy independent.co.uk/news/science/w…

0 favourites 0 retweets

In reply to @ThomasEWoolley

@ThomasEWoolley I'm on the same train as you! How far are you going?

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Ooh, I've just worked out what my big @MathsJam talk this year is going to be.

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Ah, Sheffield station burger king. I only find myself in you when my day has gone horribly wrong

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In reply to @matheknitician

@matheknitician does it - dare I ask - involve fabric?

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo what's the process for adding a person to share a room? Update my details and send you the difference in cost?

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Challenge: label train carriages so that it is easy from any position to work out which way your carriage is, relative to the nearest

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A, B, C, D,... is no good because is A at the front or back? And where's the front?

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Maybe segments of a wedge - thick end at one end of the train, thin at the other, so one carriage's symbol points to the thin end

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How do you refer to that though? Maybe do the same in letters: carriages labelled AB, BC, CD,... except the other side goes DC, CB, BA...

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In reply to @icecolbeveridge

@icecolbeveridge yeah, that would also work. But I'd like what's on the ticket to match what's on the carriage

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In reply to @icecolbeveridge

@icecolbeveridge so can we think of an ordering in space that doesn't bring to mind direction of movement?

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In reply to @icecolbeveridge

@icecolbeveridge yeah, well, if you're adding embellishments, you can just draw little arrows labelled with the other carriage letters

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In reply to @icecolbeveridge

@icecolbeveridge oooooh, VERY nice!

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In reply to @icecolbeveridge

@icecolbeveridge yes, the ordering needs to be independent of the direction of travel of the train. That's the whole problem!

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Unexpectedly at East Midlands Parkway. They've erected a hyperboloid in my honour. Good work!

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge so maybe my wedges were a good idea after all!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett yeah, so close but so far! I remember you saying it was your nearest

0 favourites 0 retweets

In reply to @ThomasEWoolley

@ThomasEWoolley you looked like you might be a bit done with the day. Never mind!

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A worrying phrase from today's spam comments: "puppy drum fishing"

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In reply to @DrCaroSummers

@DrCaroSummers what is the German word that makes men uncomfortable?

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In reply to @DrCaroSummers

@DrCaroSummers maybe both?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb we just queued when we got there. Maybe they've changed the system

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @katemath (if it helps, we don't have either of those labels in the UK)

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In reply to @evelynjlamb

@evelynjlamb @katemath if anything, we're divided into "got mine" (grew up pre 80s) and "ruined by Thatcher" (afterwards)

1 favourite 0 retweets

In reply to @christianp

@evelynjlamb @katemath but no, we don't have generational labels.

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Not many people know that when it's on land it's actually called a Flag Russell

0 favourites 1 retweet

I've done so many things today and IT'S ONLY 8:52AM!! Boohoo!

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow aka the human condition?

1 favourite 0 retweets

In reply to @futurebird

@futurebird bravo! That is a solid pun

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner also implemented by Simon Tatham and available in the many mobile ports chiark.greenend.org.uk/~sgtatham/puzz…

1 favourite 0 retweets

In reply to @badmachinery

@badmachinery I also liked it! The last panel is a killer.

0 favourites 0 retweets

At work we've rewritten our curriculum from scratch. That means I have to sort through and tag 1000 @NclNumbas questions by hand...

0 favourites 0 retweets

Who can beat the 1st clerihew?

Sir Humphrey Davy
Abominated gravy
He lived in the odium
Of having discovered sodium twitter.com/FOTSN/status/6…

1 favourite 0 retweets

John Horton Conway's
Achievements go a long ways
But all he gets is strife
For that damned game of life

6 favourites 2 retweets

In reply to @CardColm

@CardColm oh no! I'd better finish it and write my review then

0 favourites 0 retweets

In reply to @CardColm

@CardColm (I would've caught "niche is the esoteric world"... no subeditors at huffpo?)

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@adelebeeken @peterrowlett I've been using mendeley for years, as you probably know. There's also zotero, which is ethically better

0 favourites 1 retweet

In reply to @Tomboktu

@Tomboktu @aperiodical @stecks haha, that's nice.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @aPaulTaylor if I'd bothered to write my post about that high court rounding case, I would've included banker's rounding

0 favourites 0 retweets

This author has written "auxillary" so many times I've started to doubt myself

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About halfway through question-relabel-a-thon 2015: we've got loads of stuff we haven't been using!

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This is a fantastic title for a book: "Let's Be Less Stupid" by Patricia Marx amazon.co.uk/Lets-Be-Less-S…

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Does anyone else think this is weird notation for a double integral?

2 favourites 0 retweets

Conclusion: physicists do bad things to notation

1 favourite 1 retweet

I wanted "dy dx" on the end! twitter.com/C_J_Smith/stat…

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In reply to @C_J_Smith

@C_J_Smith that does appeal, yes..

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith this is from a Numbas test. I don't dirty my hands with integrals in real life

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In reply to @Samuel_Hansen

@Samuel_Hansen happy birthday!

2 favourites 0 retweets

I feel ya, sleepy wardrobe

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Listening to Aim, getting nostalgic about working on a rubbish game with @aperfect for my summer work experience

1 favourite 0 retweets

Yes, yes, I know exactly what you mean!

3 favourites 0 retweets

Just learnt a new maths word: a katadrome is a number whose hexadecimal digits are strictly decreasing oeis.org/A023797

0 favourites 1 retweet

"katadrome" isn't used in any papers in the arXiv, as far as I can see, and the MathWorld page has no references

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I do

1 favourite 0 retweets

560 questions in, I've written a bookmarklet to automate most of the clicking I do. Only 420 more to do... #tagathon2015

0 favourites 0 retweets

New integer sequence! Numbers with both decimal and hexadecimal digits strictly decreasing oeis.org/A260096 (inspired by @wacnt)

1 favourite 0 retweets

And another one! Points at which cos(n radians) is really close to cos(n degrees) oeis.org/A259621 - thanks, OEIS wizards/editors!

1 favourite 1 retweet

In reply to @NU_ITservice

@NU_ITservice @nclroblib so the conspiracy is real: you DID ship them in just for congregation!

1 favourite 0 retweets

In reply to @plusmathsorg

@plusmathsorg please, if a storm's involved, only one way of announcing that will do:

IT'S ALIIIIIIVEE!!!!

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I'm not very good at writing. Feeling a lot of pressure to write this @aperiodical post really well, but just don't feel up to it today

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In reply to @icecolbeveridge

@icecolbeveridge ta!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge (I've told myself I'm going to do a nonsense post about triangle centres afterwards as a reward)

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In reply to @icecolbeveridge

@icecolbeveridge You have boys, plural? I thought you just had the one!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge crikey! Soon you'll have a six-pack of Beveridges

0 favourites 0 retweets

In reply to @alexbellos

@alexbellos OK, that's it, I'm a numerologist now.

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Reasons nobody has kickstartered 3d printed Curta calculators yet:

1 favourite 0 retweets

In reply to @futurebird

@futurebird because 3d printing is so hot right now

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira when I first heard about them, they were going for around £200. So annoyed I didn't buy one.

1 favourite 0 retweets

In reply to @samholloway

@samholloway I'll be in Ouseburn for my wife's secret birthday surprise. If you're free for lunch, go to Jesmond Dene for the food market

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner @aperiodical @Lustomatical aha! Thanks!

0 favourites 0 retweets

I've made an interactive version of the puzzle my wife's grandma tests me with each time I visit: christianp.github.io/30secondchalle…

11 favourites 5 retweets

In reply to @tessmaths

@tessmaths You've inspired me to make a randomised version: christianp.github.io/30secondchalle…

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN thanks, nerds!

0 favourites 0 retweets

In reply to @sioroberts

@sioroberts so what's the deal with the numerals?

0 favourites 0 retweets

In reply to @csgillespie

@csgillespie "do not add fat to our fat. We only allow one kind of fat, and it is ours"

0 favourites 0 retweets

Wife: "@MoMath1 doesn't sound like my kind of thing"
(I show her the square-wheeled trikes)
It is now on our itinerary.

3 favourites 0 retweets

In reply to @sigmahubs

@sigmahubs do you know sigma-network.ac.uk is down?

0 favourites 0 retweets

In reply to @sioroberts

@sioroberts my rule of thumb is not to use numerals when you're unlikely to combine it with another number (eg. "the only one", "half time")

0 favourites 0 retweets

In reply to @sioroberts

@sioroberts in a book about Conway, I was half expecting them to turn into squiggles or little diagrams eventually

0 favourites 0 retweets

In reply to @_MMaritima

@CityCycling @ColinTheMathmo people who have registered on the site but not reserved a place yet?

1 favourite 0 retweets

I think Lyndsay Coo might be the first person to hold it together while Victoria reads out her amusing biographical fact on Only Connect

0 favourites 0 retweets

I'm getting pretty good at christianp.github.io/30secondchalle…

0 favourites 4 retweets

No Newcastle @MathsJam today because of lack of interest. If anyone wants to take it over, dm me.

0 favourites 3 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I see you've poked through all my repos :)

0 favourites 0 retweets

For someone who was sufficiently bothered by bad typesetting to invent TeX, it's odd Knuth's website looks like bum www-cs-faculty.stanford.edu/~uno/

3 favourites 3 retweets

He's got a pretty fun hobby though: photograph and take GPS coords of distinct diamond road signs www-cs-faculty.stanford.edu/~uno/diamondsi…

0 favourites 0 retweets

In reply to @DrCaroSummers

@DrCaroSummers I've seen that dust jacket before! Arrg, I can't remember!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths Donald Knuth is 77 in 2015, which is palindrome in binary www-cs-faculty.stanford.edu/~uno/news.html

0 favourites 0 retweets

In reply to @JusSumChick

@JusSumChick thanks. I'm terrible at promotion.

0 favourites 0 retweets

Hooray, #tagathon2015 is over! Now I just need to go through 583 questions and closely proofread or fix them.

0 favourites 0 retweets

Can anyone walk me through the process of turning a HTML+JS game into an android app? I've tried and failed multiple times

0 favourites 1 retweet

In reply to @MikeMJHarris

@MikeMJHarris easier to launch?

0 favourites 0 retweets

In reply to @MikeMJHarris

@MikeMJHarris @mathsjem go for it!

0 favourites 0 retweets

In reply to @MikeMJHarris

@MikeMJHarris @mathsjem (I'm going to add localStorage stuff to persist the record-keeping)

0 favourites 0 retweets

Commute, what commute? The other passengers must think I'm a mumbling loon though christianp.github.io/30secondchalle…

0 favourites 0 retweets

In reply to @henryseg

@henryseg on android, my screen keeps dimming and pressing it resets the game

0 favourites 0 retweets

In reply to @henryseg

@henryseg @AndreaHawksley Chrome

0 favourites 0 retweets

In reply to @henryseg

@henryseg @AndreaHawksley ... on an LG G3, since that might have a bearing on things

0 favourites 0 retweets

My only ambition in life is to publish a post on @aperiodical that gets more hits in one day than @aPaulTaylor's cursed Rubik's cube post

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib I used to follow your purchases in maths with an RSS feed at ncl.ac.uk/library/resour…. Does that not exist any more?

0 favourites 0 retweets

In reply to @MEIMaths

@MEIMaths that chart has so many problems.

0 favourites 0 retweets

In reply to @ncllibdev

@ncllibweb @nclroblib ok, thanks!

0 favourites 0 retweets

In reply to @ncllibdev

@ncllibweb ah yes, she asks about you moderately often! I'll tell her you broke everything ;)
No need to send a list, thanks

0 favourites 0 retweets

Putting the final touches to my new monograph, "Fibs and Lies", a collection of untrue theorems about linear recurrence equations

0 favourites 0 retweets

In reply to @stecks

@stecks nic(h)e

1 favourite 0 retweets

Be my boss! @NCLMathsStats wants to hire a new Director of e-learning vacancies.ncl.ac.uk/ViewVacancyV2.…

0 favourites 7 retweets

In reply to @theoremoftheday

@theoremoftheday how does that compare to a similar level in grown-up maths (professors? Chairs? Prize-winners?)

0 favourites 0 retweets

Well, why *not* implement a blog engine in a theorem prover? github.com/clarus/coq-chi…

0 favourites 0 retweets

In reply to @JavaScriptDaily

@JavaScriptDaily crikey. Didn't everyone discover this was a bad idea back when we were calling it DHTML?

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @Andrew_Taylor yes, the BBC wants charters and elections to be in perfect dissonance, so they never coincide

0 favourites 0 retweets

Friends, a question about your TeX preferences: \overline{x} or \bar{x} for a mean?

0 favourites 0 retweets

OK, you all agree with me that it's \bar{x}.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett have you noticed that @aperiodical's follower count has almost caught up with yours?

0 favourites 0 retweets

In reply to @AndreaHawksley

@AndreaHawksley @henryseg well yeah, it takes me to the pause screen, but that makes things tricky too. My screen dims after about 10 secs

0 favourites 0 retweets

In reply to @AndreaHawksley

@AndreaHawksley @henryseg my settings page claims 30 seconds. Maybe time flies when you're nomming polytopes

0 favourites 0 retweets

After hearing a pretentious lady pronounce 'onions' as three distinct syllables 'un-ee-uns', I can't stop saying it. Un-ee-uns. Un-ee-uns!

0 favourites 0 retweets

un-ee-unciate

1 favourite 0 retweets

Why am I getting so much spam to my uni email address about Chromebooks?

0 favourites 0 retweets

@katemath oh God imagine the nappies

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In reply to @christianp

@katemath (diapers?)

0 favourites 0 retweets

@katemath welp, the first search hit for "whale poo" was a lot more majestic than I was expecting dailymail.co.uk/news/article-2…

0 favourites 0 retweets

@katemath congratulations on making a person!

0 favourites 0 retweets

In reply to @GreyAlien

@GreyAlien it's one of those things that once you start noticing it, you can't stop. I had that with people starting sentences with "so, .."

1 favourite 0 retweets

In reply to @MissPhilbin

@MissPhilbin @ben_nuttall make sure not to try to put it on when you're in insert mode

1 favourite 0 retweets

some next level cumulonumbers in this Atlantic piece theatlantic.com/education/arch…

0 favourites 0 retweets

In reply to @stecks

@stecks the plot thickens!

0 favourites 0 retweets

In reply to @stecks

@stecks btw, you should tweet about that from @aperiodical, or even do a post

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett or, people don't move to London to study. I can believe that, given the cost of living

0 favourites 1 retweet

In reply to @ben_nuttall

@ben_nuttall @walkingrandomly ain't no club like a s/club/party/

3 favourites 5 retweets

Inordinately proud of this twitter.com/christianp/sta…

1 favourite 0 retweets

Reading about driving in the USA. Ils sont fous, ces Americains!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge right turns on red, no distinct indicator light colour, basically all the other rules of the road

0 favourites 0 retweets

I can't find an English word which, when typed unknowingly on a French keyboard, comes out as a different English word

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge your second word in both cases is French

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge indeed

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I'll try with Dvorak next, and see if that produces anything

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge hrmm, why isn't that in my word list?

0 favourites 0 retweets

ok guys, I made a very silly typo. There are loads of words

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With dvorak, we get "rosy"->"prof" and "hoard"->"drape", among many others

1 favourite 0 retweets

We have a winner! Colemak gives "sack"->"race"

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And "flee"->"tiff"

0 favourites 0 retweets

And "dim"->"sum"

1 favourite 1 retweet

Was Colemak designed specifically to make these coincidences happen? It's too unlikely

0 favourites 0 retweets

Here are lists of all the funky layout coincidences I found: gist.github.com/christianp/65b…

0 favourites 0 retweets

haha what dtest.com

0 favourites 0 retweets

@OnThisDayinMath I did not know that! Wow!

0 favourites 0 retweets

Cor, this is really nice: mathigon.org/active/graphs-…

1 favourite 0 retweets

In reply to @kirkpatricke

@kirkpatricke can't think of a specific, but there are times when it's better to turn off life support rather than try to heal

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In reply to @kirkpatricke

@kirkpatricke now I'm not sure "health state" is 1-dimensional. Would I trade use of a limb for brain function?

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Dentist appointment at midday. Dentist is running 20 minutes late. Haven't eaten anything so my breath doesn't stink. So hungry.

0 favourites 0 retweets

In reply to @aperfect

@aperfect hmm, that's the day I get back from America. Will I be tired of burgers?

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In reply to @alexbellos

@alexbellos who's playing the prizegiving? Harry Conic Jr?

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The ants on my street aren't awake yet. "Industrious drones" my hairy bum!

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Or maybe they all have to attend the Queen ant's réveille

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August

In reply to @C_J_Smith

@C_J_Smith it's certainly not at its lavendest, is it?

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In reply to @ben_nuttall

@ben_nuttall expect a letter saying your text was delayed about a week after you get home

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith someone did some maths for the Robert Downey Jr film a few years ago newscientist.com/blogs/culturel…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge "The research, commissioned by" appears in... the third paragraph! That's earlier than usual

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge actually, searching for that phrase is a good way of finding nonsense PR stories google.com/search?hl=en&g…

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge my wife's a massive Poirot fan. I sort of feel like doing this properly

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In reply to @JanvierUK

@JanvierUK lies!

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In the English language, does the letter K have a silent majority? Or is it pronounced more often than (k)not?

1 favourite 0 retweets

In reply to @samholloway

@samholloway anywhere. There are word lists with the kind of data you'd need to answer this, but I don't know how to use them

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In reply to @ChrisMaslanka

@ChrisMaslanka good question. It's not really the kind of thing I was thinking of there, so no

0 favourites 0 retweets

In reply to @samholloway

@samholloway corpuses and wordlists exist in that weird half-open world of "email these academics and we'll give you access". Hard to use.

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A poster with nearly the platonic ideal of cumulonumbers, sent unsolicited to me by a spamming company

2 favourites 0 retweets

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s and furthermore, "Sealy Gosset" sounds like a medical complaint eradicated by the invention of antibiotics

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo if you can track down "enlightening symbols" by Joe Mazur, there are good examples in there

1 favourite 0 retweets

In reply to @christianp

@ColinTheMathmo (it's a cracking read anyway, and does a really good job of pinning down the evolution of algebra)

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In reply to @MEIMaths

@MEIMaths that doesn't seem to be in the OEIS! Do you agree 1000-01-03 is the first prime number day?

0 favourites 0 retweets

In reply to @MEIMaths

@MEIMaths is there a way of linking just to this item of the month?

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In reply to @ColinTheMathmo

@ColinTheMathmo if I remember when I get home, I'll try to scan some in for you

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In reply to @ColinTheMathmo

@ColinTheMathmo and of course, if you ask Singmaster he'll have thousands

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The 29th of February 2028 (20280229) will be a prime number day. SO WILL THE NEXT DAY, the first of March (20280301)!!! @MEIMaths

1 favourite 0 retweets

You can make an arithmetic out of this, right? Bonus points for working out what it is

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes!

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In reply to @poveryant

@poveryant @MEIMaths very nice indeed!

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In reply to @ColinTheMathmo

@ColinTheMathmo @JSEllenberg I'll guess it's an automatic script that inserts the conversions

0 favourites 0 retweets

In reply to @alexbellos

@alexbellos @mathemaniac @BioGraphica1 I've philosophical objections to the no fractions rule. They're in there even if you don't see them!

1 favourite 0 retweets

In reply to @christianp

@alexbellos @mathemaniac done! I now appreciate the no fractions rule as a guide to neater solutions

0 favourites 0 retweets

In reply to @stecks

@stecks @mathemaniac @alexbellos one of the inference lines is covering up a boundary line. There's 16cm^2 box on top of an unknown box

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In reply to @sxpmaths

@sxpmaths tell me more about how the centre of the earth is necessarily cooler than the surface

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Not so subtle message at the top of theguardian.com's HTML source

2 favourites 1 retweet

In reply to @alexbellos

@alexbellos @stecks @mathemaniac here's my integers-only solution somethingorotherwhatever.com/areamaze.gif

0 favourites 0 retweets

In reply to @MuddyFingersPot

@MuddyFingersPot @biscuit_factory I think that's my bowl second from the front. Lovely glaze!

2 favourites 1 retweet

Ants! Everywhere ants!

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New integer sequence: prime number days. oeis.org/A260915 Inspired by @MEIMaths

2 favourites 5 retweets

If the number line was a country, it would be Canada: almost every natural number is polite numbersaplenty.com/set/impolite_n…

0 favourites 0 retweets

In reply to @ToonLibraries

@ToonLibraries it's restaurant week?!

0 favourites 0 retweets

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s @TheScienceSquad what's on the other side of the lids for the spider to read? "60% chance of warm mammal hand"?

0 favourites 1 retweet

Another day, another clopen sandwich from Frankie and Tony's

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway I'm going to Maine next week! Are you near anything mathematical?

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing do functions f and g with period 1 and pi respectively have f+g not periodic?

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I can guess who hasn't separated their logic from their html

0 favourites 0 retweets

Thanks to @daykount, I know that Liza Minnelli is a palindromic number of days old today. I'm not sure what to do with that information.

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight this week I was sent an 8mb tga file which, when I cropped the empty space and saved as png, ended up 8kb

1 favourite 0 retweets

In reply to @wacnt

@wacnt this one's just silly

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett gosh, he's expanding rapidly!

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In reply to @peterrowlett

@peterrowlett crikey. Shouldn't have expected any less from a descendant of yours, I suppose

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Good: my GP surgery sent each of its patients the minutes of an accountability meeting.
Bad: sent it CC instead of BCC.

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Lovely colours of flowers in the patches of grass the council can't afford to mow any more

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I'm in America! First impressions: how can a whole nation be so bad at designing roads?

2 favourites 0 retweets

In reply to @jjaron

@jjaron @standupmaths how far you'd get depends on your choice of metric for success. Which is ironic.

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In reply to @jjaron

@jjaron @standupmaths the latter

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In reply to @jjaron

@jjaron ok, well, you could make two spheres with a ton of holes in. It relies on nonmeasurable sets, so you won't get anywhere in real life

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Bad dog!

0 favourites 1 retweet

Fine specified to 2 dp when 1 sig fig will do. (someone here doesn't like dogs!)

1 favourite 0 retweets

G. Willikers in Portsmouth, NH is a really good toy shop

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A whopper of a soliton scudding slowly into the bay this morning

0 favourites 1 retweet

Struggling with American food. So much of it, and so rich!

1 favourite 0 retweets

Wow.
Such ethics.
So artisanal.

2 favourites 0 retweets

In reply to @FOTSN

@FOTSN we found this set of axes in Rockland, Maine. If only we had some of your stickers!

1 favourite 0 retweets

IS THIS FOOD?!?!

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IS THIS FOOD?!?!

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Drinks bill was $6.36. Extremely convenient for a 10% tip. #littlemathmopleasures

2 favourites 0 retweets

In reply to @CardColm

@CardColm thanks to selection bias, I see teachers tweet "first two people had the same birthdays" stories way more often than chance

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On a beach in cape cod, in the warmest waters I've ever swum in, two massive jessops are all like, "bro, I'm not getting in, it's too cold"

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Well! Boston's roads are considerably more sane at the weekend than during rush hour.

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There are like twenty weddings happening in this park. Also some kind of cosplay monstrosity.

2 favourites 0 retweets

IS THIS FOOD?!

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New York bagels definitely deserve the hype!

1 favourite 0 retweets

Amtrak, if you're going to check everyone's tickets before they get on the train, start doing it more than 3 minutes before the train leaves

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I've been in the north east for two weeks, and we're flying home today! Sorry we couldn't be anywhere near you

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In reply to @robotmaths

@AdamCreen aha! I had seen this a while ago but I thought it was grand central. Never mind!

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I don't think I've ever been this early for a plane: 7 hours! Thank cautiousness and the train schedule. Can't even check in for 1.5 hours

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall I'd always go for dict.get or dict.setdefault. Say what you mean, and so on

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall that's what setdefault does. What else do you need?

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In reply to @ben_nuttall

@ben_nuttall a = dict.setdefault(b, lookup(b)). I suppose if lookup has side effects that's bad.

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In reply to @BluelineNCL

@BluelineNCL any idea how an estimated £20.30 fare airport to Whitley Bay became £28? East coast's set fare is £17.50

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb waking up and trying to work out what nonsense people are responding to on twitter is a unique joy.

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This is really satisfying in a very particular way. vimeo.com/130119588 This must be how those weird whispering fetish people feel

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts congratulations!

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK google+ is perfect for this, but it's unpopular

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September

I've been back in work for twenty minutes and I'm already having trouble keeping my eyes open.

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In reply to @TweetsofCushing

@TweetsofCushing @tim_hunt there's got to be a way to brute force this. Aren't you a coding wizard these days?

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston without opening it, saw flajolet in the URL, not surprised

0 favourites 0 retweets

In reply to @wilderlab

@wilderlab oof, that feels like the wrong definition of 'anti-perfect'. I'd want something like "equal to sum of nondivisors"

1 favourite 0 retweets

In reply to @haggismaths

@haggismaths @FryRsquared I can expand that to "outside England" - loads fine from Newcastle :)

0 favourites 0 retweets

A poorly-written @NclNumbas question has made me think: is log_1(2) even less meaningful than 0^0?

0 favourites 0 retweets

My most useful TeX tip of the moment: in align environments you can set the space between lines, e.g. "a = b \\[1em] c = d".

2 favourites 0 retweets

Just spoke to a call centre person with such eerily good diction I thought he might be a recording.

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall I had the same reaction!

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The dog has asked if she can tweet. Didn't care about my awesome morning hair

2 favourites 0 retweets

Relic of a wasted childhood

1 favourite 0 retweets

In reply to @GhostMutt

@GhostMutt there were some classics in there all in the tip now though! Little bit sad about the PC Zone dis(c/k)s underneath

0 favourites 0 retweets

Well, I've discovered a fun new game! Search for a famous person on google images, but restrict to the last 24 hours google.co.uk/search?q=lenny…

1 favourite 1 retweet

Even though it's been completely terrible for years, I still have slashdot in my RSS reader. What's wrong with me?

0 favourites 0 retweets

@ncllibsage I expect Jimmy the Horse to receive an honorary degree at the next opportunity

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In reply to @robeastaway

@robeastaway @tombutton computation leads me to believe the Xth queen of N lies at 52*X/N

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In reply to @icecolbeveridge

@icecolbeveridge @robeastaway @tombutton huh? Oh, I start counting from zero

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In reply to @christianp

@icecolbeveridge @robeastaway @tombutton ... and then I need to change it to something like X/(N-1), don't I?

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge @robeastaway @tombutton point is, they're evenly spread through the deck

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In reply to @icecolbeveridge

@icecolbeveridge @robeastaway @tombutton verified by brute force up to 8 Queens.

1 favourite 1 retweet

@PerudoJedi most likely

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In reply to @FOTSN

@FOTSN @realscientists also known as clothoids! That is the best name!

1 favourite 0 retweets

In reply to @christianp

@FOTSN oh, and they're found in fresnel lenses, and you can make one by peeling an orange in a spiral from top to bottom

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett since this is twitter and characters are everything, I'd go with the shorter one

1 favourite 0 retweets

Just saw a highland cow in a field outside Darlington, chilling out with some normal dairy cows. Do they have a wolf problem?

1 favourite 0 retweets

In reply to @NoelAnn

@NoelAnn @peterrowlett you say #cetlmsor2015, I say #cetlmsor15, let's call the whole thing off

0 favourites 0 retweets

Just saw a falcon in a lift. Standard London.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge it's really interesting to compare this with the pooh stick and burger stories from last month.

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing actually, I think I'm moving up to the fourth floor again soon

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I'm outside this room! Finally got here. I'll go in when Phil finishes, I suppose

0 favourites 0 retweets

Forget Stoptober and Movember, I'm celebrating Autisumn

2 favourites 1 retweet

In reply to @JanvierUK

@JanvierUK it is now

0 favourites 0 retweets

The dude before me at the barber's is taking his hair entirely too seriously. I know I don't pay much attention to my hair, but come on!

1 favourite 0 retweets

In reply to @mathhombre

@mathhombre yet again, "simplify" doesn't mean any such thing

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo go on

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo so I do!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths challenge: compute the fundamental group of the Leeds campus. Those skyways are unnatural

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths have you banged your head on the stairwell to nowhere?

0 favourites 0 retweets

In reply to @benjamintormey

@BenTormey it'll be a quiet meeting if they do the same thing

1 favourite 0 retweets

A cat ran past our bay window and out of sight. The dog now thinks it might be in the TV screen. Interesting logical inference.

2 favourites 0 retweets

In reply to @standupmaths

@standupmaths I've submitted two! Seems there's going to be a glut of Dobbles

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor but easy to accidentally give the game away by correcting the director

0 favourites 1 retweet

In reply to @robotmaths

@AdamCreen I'm in Monkseaton now. Tynemouth got too crowded. Hipsters gonna hip.

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen crikey, I might be in your house then!

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen just across the road! I'm 27

0 favourites 0 retweets

In reply to @KSCMaths

@KSCMaths a tiny bit, but $25 is quite steep!

0 favourites 0 retweets

In reply to @MouldS

@MouldS ooooh, that's very satisfying!

0 favourites 0 retweets

"Corbyn obliterated his rivals mathematically" - I like the way this guy does things

3 favourites 4 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo depends on how "no true socialist" you want to be. Plenty of new labour donors were self-made

0 favourites 0 retweets

Your favourite six-letter word with no repeated letters, please

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira ooh, that's a good one!

0 favourites 0 retweets

Unexpected error message from the script I'm writing: "Failed at y (wants yon, forbids luge)"

0 favourites 1 retweet

In reply to @ruimvieira

@ruimvieira oh bravo! Two of those don't work for my purpose, which leaves me 4 synonyms. Interesting...

1 favourite 0 retweets

In reply to @tomcuchta

@liverbubble that's a word?

0 favourites 0 retweets

can't argue with that twitter.com/l_incompletude…

1 favourite 0 retweets

Which is your favourite monkey island game? I'm playing through 2 now and it just doesn't feel as good as 1, which I played tens of times

0 favourites 0 retweets

"1 for £25.37 or 2 for £144.74" - huh?! Unusual Amazon maths

0 favourites 0 retweets

In reply to @jjaron

@jjaron I can see it now: "Gene Pool on Pluto More Diverse than Isle of Wight, Study Finds"

0 favourites 0 retweets

In reply to @hughhunt

@hughhunt @standupmaths well, now I know what to expect from a review of them. Lots and lots and lots of dice rolls

0 favourites 0 retweets

In reply to @for_the_winn

@for_the_winn I also thought this was just me!

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime I thought the same thing when I read that article

0 favourites 0 retweets

"layout algorithm may be quadratic in the number of nodes". I have 44,000 nodes. Oops.

1 favourite 0 retweets

In reply to @DanielColquitt

@DanielColquitt (╯°□°)╯︵ ┻━┻ ∓ ±

0 favourites 0 retweets

Uh oh. Just posted to a JISCmail group: "Please unsubscribe me from this group." Hold on to your hats!

0 favourites 0 retweets

Can anyone help me render a ridiculously large graph? plus.google.com/+ChristianPerf…

0 favourites 2 retweets

Worried that my employer has started putting "pension savings" in quotes in emails.

0 favourites 0 retweets

In reply to @stecks

@stecks I love the "ooh... AHA!" at the end

0 favourites 0 retweets

I did it! Here's a state diagram of a complete best-of-5-sets tennis match: checkmyworking.com/misc/tennis.svg (warning: massive SVG, will kill phones)

2 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge oh, do you not have a tiebreak in the fifth set? How does it work?

0 favourites 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft I've identified all odd-numbered tiebreak points, so I suppose I'd do the same for the fifth set

0 favourites 0 retweets

friends, it's becoming obvious I don't know tennis very well. I'll get rid of the fifth set tie break

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @icecolbeveridge yes, that's what wikipedia is telling me

0 favourites 0 retweets

OK! I've got rid of the fifth set tiebreak. But now I have lines intersecting circles, which I'm not happy with. checkmyworking.com/misc/tennis.svg

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge hmm. Maybe. I prefer a finite graph.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge and also, I'd have to draw a filled triangle for all the lines that lead to the next set

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge no, but if you identify "advantage" points in tiebreaks, you can make a finite state diagram

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge they do.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge hmm. If I'm doing curved edges, I might as well keep it as I've got it

0 favourites 0 retweets

Pretty pleased with the gif I made for this post twitter.com/aperiodical/st…

0 favourites 0 retweets

Why does uploading music in Google Play Music absolutely rinse my CPU? Is it doing some analysis of the tracks before uploading?

0 favourites 0 retweets

In reply to @jjaron

@jjaron that would explain (1) why it takes so long, and (2) why my music now has the swear words bleeped out

0 favourites 0 retweets

Moderately happy with this now: an interactive state diagram of a complete tennis match christianp.github.io/tennis-graph/ @FOTSN

2 favourites 0 retweets

In reply to @CardColm

@CardColm I did this with a leek when I was younger. Arrived intact but with a stern notice not to put veg in a post box.

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN just a few hours today. Lots of thinking beforehand. I want to print a big version on a scroll to follow along at Wimbledon time

1 favourite 0 retweets

Not just the game-book of the film, the game-book of the film IN FRENCH!

0 favourites 0 retweets

Remember when amazon only did books?

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge fourmidable?

0 favourites 1 retweet

Forget iOS9!

4 favourites 2 retweets

There's a programme about MC Escher by Sir Roger Penrose on BBC4 tonight. bbc.co.uk/programmes/b06…

11 favourites 13 retweets

In reply to @icecolbeveridge

@icecolbeveridge that is a Sunday Format-esque arrangement of words

0 favourites 0 retweets

It's nice that I'm being asked to review papers despite only having one myself and no PhD, but a shame it's always closed access journals

0 favourites 0 retweets

I made this. I have no idea why. codepen.io/christianp/pen…

0 favourites 0 retweets

I see we're at the "surprising new sex act" phase of a Tory government

2 favourites 0 retweets

In reply to @robeastaway

@robeastaway produce X amount of hormone, each seasonal cycle convert X/17 of it, wake up when none left?

0 favourites 0 retweets

In reply to @chris_a_wagner

@chris_a_wagner first confirm you don't have two commonly used shell commands with levenshtein distance 2

0 favourites 0 retweets

In reply to @alexbellos

@alexbellos interesting that that doc came out to coincide with the Escher exhibition reaching London, not when it was in Edinburgh

0 favourites 0 retweets

In reply to @christianp

@alexbellos I wonder if it was commissioned after someone went to see the exhibit in Edinburgh

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz don't think so - it just scans any domain you put into it. I've downloaded the list of top million sites and we're not in it!

0 favourites 0 retweets

In reply to @christianp

@pkrautz top ranked domain with 'math' in the title: mathxml.com at 2735. Next, it's mathworks.com at 3035

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz huh? Url?

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz ah. Must be hovering around the cut-off

0 favourites 0 retweets

Idea: Kickstarter to place adverts for houses in the North East on billboards in London.

0 favourites 1 retweet

Of course a large part of it is that I like seeing Londoners suffer, but maybe some of them just don't realise how rubbish London is

1 favourite 0 retweets

In reply to @gingerbeardman

@gingerbeardman I'm sure they could all sell coffee on slates to each other

0 favourites 0 retweets

In reply to @gingerbeardman

@gingerbeardman of course it's silly. But yeah, disapproving more than bitter

0 favourites 0 retweets

Huh! @ChrisMaslanka and David Singmaster are currently on Radio 4 Extra, in a repeat of Puzzle Panel bbc.co.uk/radio4extra

1 favourite 0 retweets

When you try to middle-click the back button in Chrome but instead hit your bookmarks folder.

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts it's like God Save the Queen - entirely the wrong song for the occasion

0 favourites 0 retweets

After 2 days of debugging, you find an edge case which just won't work. You give up, see how often it comes up, and it's < 1 in 10,000. Boo.

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle I feel like a charlatan for paying some men to come and paint my house this week

0 favourites 0 retweets

"Twice as close to 1997 as it is to today." Sort that one out, @aPaulTaylor

0 favourites 0 retweets

The exponential function wrecks lives: longest Hearthstone (online card game) turn ever, at 45 hours: hearthstone-decks.com/article/le-tou…

0 favourites 0 retweets

Hooray! twitter.com/UKComedyNews/s…

0 favourites 0 retweets

Work email unwittingly reminiscent of Captain Oates: "I'm going into a meeting now and won't be back."

2 favourites 0 retweets

My copy arrived today. It's absolutely beautiful! twitter.com/aperiodical/st…

1 favourite 0 retweets

In reply to @pkrautz

@pkrautz well gosh, thanks!

0 favourites 0 retweets

how long have arXiv entries had trackbacks? arxiv.org/tb/1509.05363

0 favourites 0 retweets

Quite pleased with this effect codepen.io/christianp/pen…

0 favourites 0 retweets

Fun maths joke: 1728 is sometimes called "a Zagier", because of the Gross-Zagier theorem - en.wikipedia.org/wiki/1728_(num…

0 favourites 0 retweets

Taking the dog out for a random walk. She's very well-trained!

3 favourites 0 retweets

Buying placemats for my new 70s themed supergrain restaurant, Starchy and Husk.

0 favourites 0 retweets

Obtained a big stack of obsolete cards. This could end badly @MegaMenger

0 favourites 0 retweets

In reply to @stecks

@stecks @MegaMenger rather - 10cm x 14.5cm. I've only got a few hundred of them.

0 favourites 0 retweets

In reply to @stecks

@stecks ooerr, there's an idea!

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths as long as you stick to the rationals, you're safe

1 favourite 0 retweets

In reply to @svenkreiss

@svenkreiss do you know unicodeit.net has expired?

0 favourites 0 retweets

A very nice interface to search for unicode characters. Great for finding maths symbols! graphemica.com ♥ ⋛ ♡

1 favourite 2 retweets

Jazz up your next tweet with some characters from Unicode's "Supplemental Mathematical Operators" block graphemica.com/blocks/supplem… ⫷ ⨄ ⨒ ⩐⫝̸ ⫸

2 favourites 2 retweets

codepoints.net is another site for finding unicode symbols, with a 20 questions-style tool to find the character you want

1 favourite 0 retweets

In reply to @CodepointsNet

@CodepointsNet the "random" button always gives U+0000 NULL ☹

0 favourites 0 retweets

Well this symbol tells a story! graphemica.com/%E0%A7%B8 Explained in section 3 of std.dkuug.dk/JTC1/SC2/wg2/d…

0 favourites 0 retweets

Today in worryingly brief commands: `scp *.pdf aldred:~`

0 favourites 0 retweets

So that's what that is! twitter.com/Ravenser/statu…

1 favourite 0 retweets

Accidentally discovered that ctrl+shift+w in chrome closes the whole window, even if there's more than one tab

0 favourites 0 retweets

Trains normally run every 12 minutes, so at some point this becomes a 3 minute delay twitter.com/My_Metro/statu…

0 favourites 0 retweets

October

An alarmingly comprehensive map of punny business names in the USA atlasobscura.com/articles/behol…

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN I know I'm a bit late for #vennsday, but my dad's birthday didn't comply. Can it be #nerdyjeudi instead?

1 favourite 0 retweets

In reply to @stecks

@stecks sadness and frequency

0 favourites 0 retweets

In reply to @christianp

@stecks (together, they fight crime)

1 favourite 0 retweets

This weekend I'm going to Expiremont in France, the birthplace of the sciontefic mithed.

3 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge when we went to Avignon, my nana mentioned she likes chateauneuf du pape. So, like chumps, we went to the palais des papes

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge you would not believe how expensive the wine is there. I can't be expected to know these things: I'm no boozehound like her

0 favourites 0 retweets

I have a superpower: whenever I look into a herd of animals, I always pick out the one that's pooing immediately

1 favourite 0 retweets

In reply to @HilariousCow

@HilariousCow how does the fad for randomised roguelikes tie into that?

0 favourites 0 retweets

In reply to @wiebow

@wiebow I was so sad when mine broke a couple of users ago!

0 favourites 0 retweets

In reply to @wiebow

@wiebow mine just bricked itself

0 favourites 0 retweets

Substitute letters in "elecrroencephalographic" to get a string in alphabetical order. Can you do it in fewer than 15 changes?

0 favourites 0 retweets

Buying curtains for my new kink club where you describe what you're into using set arithmetic, Of Vice and Venn.

2 favourites 1 retweet

Watching a beautiful sunset over Team Valley. Never thought I'd write that.

1 favourite 0 retweets

In reply to @walkingrandomly

@walkingrandomly NCL's has always been pretty good. Always up to date (well, chrome is a few weeks behind...) and doesn't get in the way

0 favourites 0 retweets

In reply to @stevieb

@stevieb it's been annoying me for ages that it doesn't do that!

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK it's not your fault.

0 favourites 0 retweets

In reply to @aperfect

@aperfect International patent law!

0 favourites 0 retweets

Featuring a puzzle by me! twitter.com/aperiodical/st…

1 favourite 1 retweet

Terry Tao,
The cat's miaow,
Resolves a conjecture
Before every lecture.

#clerihew

4 favourites 5 retweets

Today's test user.

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w you don't like that one?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @robeastaway I await "90% of students failed to identify the key themes in this confusing poem"

0 favourites 0 retweets

First line in an advert: "we all wish the magic of Christmas could start earlier." Got to disagree with your premise there.

1 favourite 0 retweets

In reply to @samholloway

@samholloway bum! Fixed!

0 favourites 0 retweets

In reply to @CIRCA_StAndrews

@CIRCA_StAndrews oops! Fixed!

0 favourites 0 retweets

In reply to @MatthewArbo

@MatthewArbo yep. I think it's maybe just worded a bit oddly

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @aperiodical Ahh, I spotted that first time I read it, but forgot in the video

0 favourites 0 retweets

Lovely video! twitter.com/alexbellos/sta…

1 favourite 0 retweets

Web-Stalin hides his tank factories behind the URLs

0 favourites 0 retweets

This occurred to me at the weekend: the 360-gon isn't constructible with compass and rulers, so why do we use 360 degrees?

1 favourite 0 retweets

In reply to @stecks

@stecks yeah, but how do you construct one degree using only compass and ruler? Is that not how it worked?

0 favourites 0 retweets

In reply to @stecks

@stecks YOU WEREN'T THERE, MAN!

0 favourites 0 retweets

This is a very entertainingly angry R tutorial: arrgh.tim-smith.us

1 favourite 1 retweet

I had an idea and broke javascript christianp.github.io/slightly-broke…

0 favourites 0 retweets

In reply to @SLSingh

@SLSingh @city_of_physics piano tuner sounds like more of a Shelbyville kind of profession

1 favourite 1 retweet

New sequence! Smallest k such that there's no 3x3 matrix with entries in {1..n} whose determinant is k oeis.org/A262719

2 favourites 3 retweets

My day off. Today is not a Doing Well at Games day. I've died, been shot, been blown up and led a village to famine, and it's only 9:20am

2 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag re chalkdustmagazine.com/regulars/top-t… - wot no Curta *AND* no Little Professor? @alexbellos, @jamesgrime - to arms!

1 favourite 0 retweets

I've never wanted to have a badge as much as this: there's a register of competent people! competentperson.co.uk

0 favourites 0 retweets

In reply to @stecks

@stecks indeed.

0 favourites 0 retweets

In reply to @stecks

@stecks you're rapidly reinventing scout badges

0 favourites 0 retweets

In reply to @henryseg

@henryseg @Gelada did Borges ever explain where all the heat in the library of babel went?

0 favourites 0 retweets

In reply to @Gelada

@Gelada @henryseg ... and another one gives a contradictory explanation

1 favourite 0 retweets

Impromptu bar chart of mine and my wife's bananagrams letters. Hers are on top - she was complaining she had no Is!

1 favourite 0 retweets

... and here's the full set, for reference

0 favourites 0 retweets

How is this calculator powered?! It's older than I am and it still turns on.

8 favourites 3 retweets

Crikey! That's, like, £200 in today's money. Worth it though.

0 favourites 0 retweets

Yessssss!

0 favourites 0 retweets

Yes!!!!!

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen I was at my mum's house clearing out my old stuff

0 favourites 0 retweets

11 favourites 15 retweets

Just turned on @amazingradio. This song by Hop Along is really good! amazingtunes.com/outpromotion/h…

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo dodecahedrone

1 favourite 0 retweets

oeis.org is down! What on earth will I do with myself?

1 favourite 0 retweets

In reply to @ajtpartridge

@ajtpartridge yeesh, that's quite a thing to encounter!

0 favourites 0 retweets

Twitter mathmos, please hope me: what's the most efficient packing of 12cm diameter circles onto an A0 sheet of paper?

0 favourites 0 retweets

In reply to @ajtpartridge

@ajtpartridge I've added a b-file of 99999 terms to your sequence :)

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @OllieHarris1616 there *has* to be a clever zero-knowledge protocol to let you judge this without learning people's numbers

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths @OllieHarris1616 @Andrew_Taylor the best I can do is "text a secret word to every number with the property"

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @OllieHarris1616 @Andrew_Taylor though I'm not sure how to prove you sent the same word to every number, unless...

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @OllieHarris1616 @Andrew_Taylor... unless two people have numbers with that property and they check with each other

0 favourites 0 retweets

In reply to @chappersman

@eAssessmentChap @exam_writer Numbas used since 2012, i-assess ~6 years before that. Never met Sugata Mitra.

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 did it yesterday!

1 favourite 0 retweets

Tonight I'm going to Newcastle @MathsJam, 7pm at the Charles Grey. I've got a new game!

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I have a fairly underwhelming LG G3. It's almost too big for my gargantuan hands. So, not that.

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I bought my phone unbranded from Amazon. Has that changed with the G4? Oh, the LG skin on Android is pretty poor too.

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor ... I suppose that's true?

0 favourites 0 retweets

People staring at a travel shop window like they're offering trips to the moon.

0 favourites 0 retweets

In reply to @ProfNoodlearms

@ProfNoodlearms @evelynjlamb something that might be fun to look at: probs of different algebraic errors for different choices of letter

0 favourites 0 retweets

"You may skip this ad in 15 seconds" - at that point, I think we're past "skipping".

0 favourites 1 retweet

Weird! I was just looking at my Gardner books yesterday, wondering when the next Celebration of Mind is twitter.com/Susan_Rodeo/st…

1 favourite 0 retweets

Can anyone help me convert some extremely complicated SVGs to PDF? Inkscape dies, and ImageMagick convert gets it wrong.

0 favourites 0 retweets

Thanks for the offers of help @robinhouston @sxpmaths, but I got it working by running inkscape from the command-line on a beefier PC

1 favourite 0 retweets

In reply to @p3d40

@p3d40 @monsoon0 @pickover start here: three.onefouronefivenine.com

2 favourites 1 retweet

In reply to @robeastaway

@robeastaway @MEIMaths @sigmahubs @GooglePlay oh, it's out! Saw it at a conference recently. Need to write a review

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful I'm not a particularly loyal listener (sorry) but a panel game sounds fun

0 favourites 0 retweets

New sequence: an interesting one to do with dealing cards into two piles oeis.org/A263458

1 favourite 2 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor go further back. I reckon "A Modest Proposal".

0 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly off the top of my head, I think I know more laws of robotics than commandments. #mightbearobot

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths I can do better than that: the fastest and shortest algorithm for any well-defined problem arxiv.org/abs/cs/0206022

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle morning Alison!

1 favourite 0 retweets

In reply to @CounterOfSheep

@ajkiddle gopro in the chicken coop

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths it's really good, isn't it? It's one of the plus points in a maths app roundup I'm writing at the moment

1 favourite 0 retweets

In reply to @MathsJam

@MathsJam @outofthenorm2 I need a word for "problem I've solved before but can't remember a single step of the solution"

1 favourite 0 retweets

In reply to @MathspaceUK

@MathspaceUK will do. By the way, your profile points to mathspace.com.au, which doesn't have the right SSL certificate

1 favourite 0 retweets

Who remembers Kye? games.moria.org.uk/kye/ I wasted a lot of hours when I was tiny trying to beat it.

0 favourites 0 retweets

?!?!?!?!?! This is a terrible way to announce a pregnancy etsy.com/uk/listing/230…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett it's good to know where you should be concentrating your efforts

0 favourites 0 retweets

In other terrible mug news: a measuring cylinder which can't be used to measure etsy.com/uk/listing/201…

0 favourites 0 retweets

WHYYYYY zazzle.co.uk/boys_solving_m…

0 favourites 0 retweets

This has to count as a sloanewhack: I've found a pretty small two-number combo that isn't in the OEIS: oeis.org/search?q=3648%…

0 favourites 0 retweets

Bonus points if you can work out what I'm doing. The next term is 4472345, if that helps.

0 favourites 0 retweets

In reply to @aperfect

@aperfect ahh, the old Pot O' Food.

0 favourites 0 retweets

Good effort. twitter.com/adamcreen/stat…

0 favourites 0 retweets

In reply to @samholloway

@samholloway @MathsJam hah, no, my mathsjam talk has sprung forth complete from my own head. This is something marginally less interesting

0 favourites 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett @aperiodical do you fancy writing another one?

0 favourites 0 retweets

In reply to @CardColm

@CardColm maybe you need to introduce another step into the permutations: stop the car.

0 favourites 1 retweet

In reply to @samholloway

@samholloway @JeanetteLeech ah! That game's been on my amazon wishlist for so long I forgot why I wanted it. Thanks!

1 favourite 0 retweets

In reply to @samholloway

@samholloway hooray!

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN that Venn inspired me! I found a few triples that work, but this is best (working: gist.github.com/christianp/759…)

14 favourites 16 retweets

In reply to @jjsanderson

@jjsanderson I hate when that happens! Three hours to think about how much time you've lost (and whether you'll be able to walk at the end)

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor yes. That's the worst part.

1 favourite 0 retweets

In reply to @samholloway

@samholloway @ajkiddle @jamie5on I agree that Beaconsfield is very good

0 favourites 0 retweets

In reply to @aperfect

@aperfect or ever?

0 favourites 0 retweets

In reply to @aperfect

@aperfect ok, maybe your blog isn't in my rss reader any more

0 favourites 0 retweets

In reply to @aperfect

@aperfect don't escape the excerpts on your front page

0 favourites 0 retweets

In reply to @aperfect

@aperfect your RSS is broken!

0 favourites 0 retweets

In reply to @moebio

@moebio @stevenstrogatz I decided to look at what happens if you change which other dog they run towards codepen.io/christianp/pen…

6 favourites 3 retweets

In reply to @jjaron

@jjaron is it deliberate that that building is reminiscent of a panopticon, do you think?

0 favourites 0 retweets

In reply to @c0mplexnumber

@c0mplexnumber that rhino is very famously by Durer bbc.co.uk/ahistoryofthew…

0 favourites 0 retweets

In reply to @c0mplexnumber

@c0mplexnumber doesn't matter, it's still a good drawing

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths I have a couple of options, both older than me...

0 favourites 0 retweets

In reply to @stecks

@stecks @standupmaths indeed!

0 favourites 0 retweets

In reply to @helenarney

@helenarney @northernstage it might just be the northern stage of some other multi-stage venue. Better look for three or four more signs

0 favourites 0 retweets

Popped into my office in the maths building before the @FOTSN show, and my wife put this on the whiteboard. Disagree

6 favourites 3 retweets

In reply to @FOTSN

@FOTSN a happy marriage (she says)

0 favourites 0 retweets

The colour of autumn. #protanomalyblues.

0 favourites 0 retweets

To contrast, here's what it "really" looks like

1 favourite 0 retweets

My mum's lunch doesn't look too happy with its situation

3 favourites 0 retweets

In reply to @samholloway

@samholloway oh super. I'm in the Herschel building. Should be able to attend your lecture too

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday a classic :)

0 favourites 0 retweets

November

Today is one of those rare days I hate, when I have to open Visual Studio and write C++.

1 favourite 1 retweet

It doesn't help that there are about a bajillion string types, and I don't really know what pointers are. Those are the two biggies.

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 I want to learn! I also need to get my knitting needles back off the person I lent them to

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I could be available for commissions...

0 favourites 0 retweets

In reply to @biscuit_factory

@biscuit_factory ooooooooh, pretty!

1 favourite 0 retweets

Leaving my office for the last time before big @MathsJam. How many things have I forgotten to pick up?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge at home!

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @MathsJam @AJMagicMessage if you do the dobble one, it might save me a minute of explanation, or it might make mine redundant

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @icecolbeveridge aha! Then yours will help me greatly.

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @icecolbeveridge the zebra thing is *very* nice

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway well, @WoollyBenguin already told me about it, but it is nice.

0 favourites 0 retweets

In reply to @Dr_JAH

@Dr_JAH @MathsJam I need that, the conference centre is in the middle of absolutely nowhere

0 favourites 0 retweets

FINALLY! twitter.com/My_Metro/statu…

1 favourite 0 retweets

$146!!! amazon.com/exec/obidos/AS…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge "spoof my proof" is my favourite brand of non-alcoholic whiskey

0 favourites 1 retweet

In reply to @christianp

@peterrowlett @icecolbeveridge that was a warm-up fib. My favourite is actually "I can't believe it's not Bruichladdich!"

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle me too! Did a dog also wake you up at 5am wanting to be let out? #baddog

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge conversely, I'm heading to the Deepest Darkest South

0 favourites 0 retweets

I can't look at a list of numbers any more without expecting to see an OEIS reference at the end. @MathsJam

2 favourites 2 retweets

In reply to @MathsJam

@MathsJam now we need someone who doesn't care about maths but loves football to give a talk

1 favourite 1 retweet

In reply to @MathsJam

@MathsJam @ajk_44 Gauss is in position 0 then

0 favourites 0 retweets

In reply to @MathsJam

@MathsJam some of us were up brighter and earlier than you

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 I've just remembered: William Shanks was the guy who got pi wrong!

1 favourite 0 retweets

On the way back from @MathsJam, play the birthday problem with the last three letters of car registration plates christianp.github.io/trafficthingy

1 favourite 1 retweet

5 hours later, I'm home. Big @MathsJam was a lot of fun!

0 favourites 0 retweets

I'm not sure what the author of this question expected "sign(random(-1,1))" to do differently than "random(-1,1)". It will remain a mystery

1 favourite 0 retweets

In reply to @jgrahamc

@jgrahamc SPOILERS

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Third slide: "Paradoxes: what they both are and aren't"

0 favourites 1 retweet

In reply to @robotmaths

@AdamCreen @icecolbeveridge "Incompleteness: what it"

0 favourites 1 retweet

In reply to @christianp

@AdamCreen @icecolbeveridge "What it is: Inconsistency"

0 favourites 1 retweet

Hopefully both scientists and humanities scholars are taught the critical thinking skills needed to boggle at this twitter.com/markstaylor/st…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Paradoxes: This Slide Intentionally Left Blank

1 favourite 2 retweets

Browsing through work's photo library of the city. There's one that's misleading at best: it contains palm trees and full sunshine

0 favourites 0 retweets

A lot of horns hooting in the city centre today. Doesn't bode well for my trip home

0 favourites 0 retweets

In reply to @derek_couzens

@derek_couzens @MathsJam something to do with iambic feet?

0 favourites 0 retweets

Saw "2915" chalked on the ground when my wife dropped me off at work. She's asked me for three facts about it by 4pm. Internet, please help!

0 favourites 1 retweet

In reply to @TweetsofCushing

@TweetsofCushing is that the arithmetic derivative?

0 favourites 0 retweets

oeis.org/A166374 twitter.com/TweetsofCushin…

0 favourites 0 retweets

oh yes oh yes oh yes geobunnies.com/post/132760215… (@MathsJam attendees impressed by my laptop sticker might want to click on this)

0 favourites 0 retweets

In reply to @derek_couzens

@derek_couzens by the way, I've just found this interactive version of your Word Lock puzzle I made a while ago christianp.github.io/wordlock/

0 favourites 1 retweet

9 is the only number with sqrt(n) divisors

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge oh right, except 1

0 favourites 0 retweets

or, 4 and 16 are the only numbers with sqrt(n) proper divisors

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor it looks at first glance like a pretty terrible way to go about your business, as well

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @AdamCreen I wish I hadn't decided against writing "natural number greater than 1"

0 favourites 1 retweet

Just looking at that is giving me anxiety flashbacks about low-fps jumping puzzles twitter.com/Locomalito/sta…

0 favourites 0 retweets

Just found out David Singmaster has a fan page on facebook. I'm his 100th fan! facebook.com/pages/David-Si… (otherwise, this has no merit)

0 favourites 0 retweets

has anyone checked this for the triangle inequality? twitter.com/standardnews/s…

0 favourites 0 retweets

With all the talk of neural nets, has anyone set one the task of extracting quiz questions from the news? (maybe I'm watching Pointless)

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge @stecks and so pleasing that nobody took umbrage with it.

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge @stecks yes, there are times when a quiet word is appropriate, & times when it's absolutely the wrong thing

0 favourites 0 retweets

or, "Pi found in formula for circle" twitter.com/thephysicsgirl…

3 favourites 2 retweets

In reply to @haggismaths

@haggismaths @sioroberts it is! If we're ever in the same place I can give you my copy

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I thought you were saying you could see the outlines of women inside the patterns, not that you saw women wearing them

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett yes, I thought it was a bit revealing

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle start wearing lurid pantsuits?

0 favourites 0 retweets

In reply to @ajoy_allen

@ajoy_allen so. many. acronyms.

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt @CardColm crikey, I'd hope it's taken into account when building roads...

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt @CardColm oh, and atlanta airport: wired.com/2014/03/see-cu…

2 favourites 3 retweets

The Almost Impossible Game Show rids its contestants of their dignity with ruthless efficiency. Best show on telly.

0 favourites 0 retweets

Darwin Deez is the coolest human thisiscolossal.com/2015/11/darwin…

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson that doesn't normally happen. I'd blame a theme or plugin

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson wordpress lemma: themes can break anything at any time, even if they promise they're not going to

0 favourites 0 retweets

@katemath ask them to lie about their gender, and enjoy the reverse effect?

0 favourites 0 retweets

In reply to @Trianglemancsd

@Trianglemancsd @katemath how interesting!

0 favourites 0 retweets

It's true, I remember that lesson well twitter.com/JanvierUK/stat…

1 favourite 0 retweets

In reply to @STEMNewcastle

@STEMNewcastle @StudentsNCL ooh, they're doing a bit well!

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo so far, I think none of the above. The paper he presented doesn't claim a proof in its abstract.

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo oh, I haven't listened to the interview

0 favourites 0 retweets

Just did something equivalent to flipping a coin and getting tails eight times in a row. Not sure how to feel.

0 favourites 0 retweets

Cool! But expensive! Did @standupmaths see one on tour? twitter.com/ruimvieira/sta…

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four more flips into tails. I'm down the rabbit hole now. Might go out and buy a lottery ticket

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In reply to @ChrisHazell72

@ChrisHazell72 alas, this is an analogous coin, not a real one

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In reply to @numberphile

@numberphile did the daily mail get permission to reproduce your video in this article, sans youtube? dailymail.co.uk/sciencetech/ar…

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In reply to @numberphile

@numberphile have they done that before?

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In reply to @numberphile

@numberphile so what's the deal? They think it's fair use? Youtube terms of service?

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In reply to @GreyAlien

@GreyAlien what breaks if you say "no"?

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In reply to @peterrowlett

@peterrowlett @Andrew_Taylor @PeteHague and yet, I'm VERY interested in trying this out

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So @qz, is it ok to illustrate a story on a Nigerian (qz.com/552327/the-nig…) with pic of unrelated Sudanese man? pictures.reuters.com/C.aspx?VP3=Sea…

7 favourites 7 retweets

It's getting close to Christmas, and all my socks have holes in. Do M&S design them to last an integer number of years?

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Villainous Relatives! twitter.com/scarymum/statu…

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In reply to @ch_nira

@ch_nira thanks for your comment on our @aperiodical post. Hard to respond to accusations of racism!

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In reply to @robinhouston

@robinhouston it's bad form to go straight in with something negative, but here's one: china is inflated uniformly. Coast should be bigger?

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In reply to @robinhouston

@robinhouston it's an interesting subtlety - Europe and Africa do all sorts of contortions, but Asia and North America keep their shape

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have you ever thought about what a massive coincidence it is that you can draw a map of the earth with no land wrapping across the edges?

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In reply to @JanvierUK

@JanvierUK ok, for some definition of "land"

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pretty pretty pretty! malinc.se/m/RollingHypoc…

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ah boo twitter.com/poveryant/stat…

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In reply to @NewtonInstitute

@NewtonInstitute lots of people watching? The stream keeps buffering for me

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In reply to @Pecnut

@Pecnut ConsoleZ 4 Lyf!

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*swiftly getting out of my depth*

*just like Micronesia* twitter.com/RealityMinus3/…

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In reply to @CardColm

@CardColm tell me more!

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In reply to @MouldS

@MouldS some lovely examples of these shells in Cragside, amongst all the other animals Lord Armstrong liked to kill

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In reply to @gabegaster

@gabegaster hi, please can I use this picture in a post on aperiodical.com?

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In reply to @gabegaster

@gabegaster thanks! Should go online tomorrow

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In reply to @ColinTheMathmo

@ColinTheMathmo my fave example was a woman flirting on phone, who had to loudly repeat something v. saucy after we went through a tunnel

1 favourite 0 retweets

if you use Chrome, maybe look at this: christianp.github.io/clever-hans/

1 favourite 0 retweets

In reply to @charliesgames

@charliesgames I finally found a way to improve the horsey :)

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In reply to @peterrowlett

@peterrowlett 7/7, but that test is ridiculous. And I thought the time constraint on christianp.github.io/30secondchalle… was unnecessarily harsh!

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In reply to @jjsanderson

@jjsanderson yes! Or, on non-mac boxes, there's ImageMagick

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#TeamColin4Lyf twitter.com/icecolbeveridg…

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In reply to @icecolbeveridge

@icecolbeveridge is it just me, or is there 5 minutes of silence at the end of the file?

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In reply to @theoremoftheday

@theoremoftheday is that the smallest number not in the a-line of a sequence in the OEIS?

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In reply to @icecolbeveridge

@icecolbeveridge @theoremoftheday depends on what you mean - everything's in implicitly because the natural numbers is in

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In reply to @icecolbeveridge

@icecolbeveridge @theoremoftheday but each sequence lists ~240 characters as its "A" line, so later terms don't show up in search

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In reply to @icecolbeveridge

@icecolbeveridge @theoremoftheday or, if I parse your question differently - I guess that sequence starts at 14972 and gets dense quickly

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In reply to @peterrowlett

@peterrowlett do you have time to do an aperiodical post about it?

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In reply to @CardColm

@CardColm is that z=x+y?

1 favourite 0 retweets

Unbelievably cheery music accompanies this very short video of crafty polyhedra youtube.com/watch?v=2nHc2Q…

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None of the maths in this article makes sense. Zeta function bilinear? "Sobolev space theorem"?! twitter.com/Apokrupto/stat…

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In reply to @icecolbeveridge

@icecolbeveridge yes. We've been weighing up whether to order it just to remove all doubt

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In reply to @icecolbeveridge

@icecolbeveridge I wonder, because issue 1 is available as PDFs on their website

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In reply to @icecolbeveridge

@icecolbeveridge hm.

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In reply to @icecolbeveridge

@icecolbeveridge turns out their regex doesn't compile

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In reply to @icecolbeveridge

@icecolbeveridge reply from Nina Ringo: "The issue will be open access in 6 months"

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In reply to @icecolbeveridge

@icecolbeveridge it would count as "delayed open access" en.wikipedia.org/wiki/Delayed_o…

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In reply to @icecolbeveridge

@icecolbeveridge don't have an email address for him!

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In reply to @futurebird

@futurebird @icecolbeveridge @christianp if I can, I will

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In reply to @FOTSN

@FOTSN 4.45, I hope

1 favourite 0 retweets

In reply to @JamesMoosh

@JamesMoosh @aperiodical yeah, someone's already mentioned that. I glossed the distinction. Either way, it doesn't directly help P=NP

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In reply to @JamesMoosh

@JamesMoosh yeah, I can see that. Might reword it.

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In reply to @standupmaths

@standupmaths there's an app you can download which has an offline copy fathom.info/pi

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Twitter, please help: what would be an unreasonable complaint to make about a cup of coffee?

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For example, "not blue enough" is unreasonable but too stupid. "Too hot" is too reasonable.

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One more condition: needs to be something a non-mathematician would say twitter.com/samholloway/st…

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More like it! twitter.com/icecolbeveridg…

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In reply to @icecolbeveridge

@icecolbeveridge @samholloway good lateral thinking

1 favourite 0 retweets

Thanks to Hans Havermann for reminding me where I'd seen Nina Ringo's name before viennaconference.blogspot.co.uk/2011/08/vienna…

2 favourites 0 retweets

In reply to @divbyzero

@divbyzero my brother turned x^x yesterday! Don't think he'll appreciate that integral though

1 favourite 0 retweets

In reply to @MouldS

@MouldS read from left to right, it describes what the door does: move right, and once you've walked through, move left

1 favourite 1 retweet

In reply to @JanvierUK

@JanvierUK *hugs*

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Where do old issues of MSOR Connections live online these days? @peterrowlett?

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In reply to @peterrowlett

@peterrowlett more to the point, will I?

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In reply to @aperiodical

@aperiodical waaaait, what happened to the rest of my video? And my laptop's at home! Boo!

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In reply to @CounterOfSheep

@ajkiddle @inky_r @Dendrodoa (that was @Pecnut, who's currently in all the papers, staring at fluid chocolate)

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Number of @Raspberry_Pi zeros I own, after scouring Newcastle's newsagents and shops: zero.

1 favourite 0 retweets

In reply to @CardColm

@CardColm I think the "1" is the region outside all the spheres

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In reply to @eplop

@eplop @Raspberry_Pi yeah, I reckon I'll find one when I get home tonight

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In reply to @charliesgames

@charliesgames reminds me of the time I wrote an XML parser in Blitz Basic (or was it even Dark Basic?). Unwise.

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In reply to @mscroggs

@mscroggs I like the Ackermann–Péter function. Rózsa Péter was a legend! en.wikipedia.org/wiki/R%C3%B3zs…

1 favourite 0 retweets

Animated Geobunnies!!! geobunnies.com/post/128583251…

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In reply to @aPaulTaylor

@aPaulTaylor EVERY TIME!

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Writing an article about a call for proposals to support women in maths. What's the maths equivalent of "women laughing at salad"?

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In reply to @monsoon0

@monsoon0 womenlaughingalonewithsalad.tumblr.com someone noticed a particularly unimaginative genre of stock photo

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In reply to @monsoon0

@monsoon0 I can't think how to illustrate this post, so "deliberately awful montage of women and maths" is my best bet

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In reply to @monsoon0

@monsoon0 oh yeah, by awful I mean I can't think of how to get a good picture for the post. At the moment it's going to go out unillustrated

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Adventures in searching for "women maths" stock photos, part 1: reasonable istockphoto.com/photo/evil-old…

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In reply to @monsoon0

@monsoon0 I like that a lot too! Where's it from?

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Adventures in searching for "women maths" stock photos, part 2: STEP AWAY FROM THE GEOMETRY istockphoto.com/photo/dangerou…

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?! twitter.com/adamcreen/stat…

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What's interesting about this? 1061031009896949290888684828078767472706866646260585654525048464442403836343230282624222018161412109876543210

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In reply to @icecolbeveridge

@icecolbeveridge but why?

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In reply to @icecolbeveridge

@icecolbeveridge how many digits after the 106?

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Winner! twitter.com/daveinstpaul/s…

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Had grand plans for blogging today but I feel bummed instead. Going to knit and then sort out the gravel on the drive.

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I made up a similarity metric for images then found the shortest loop through the full set of emoji

1 favourite 1 retweet

In reply to @henryseg

@henryseg oh I don't know. I have png versions of emoji one, so it was easy to do. Not sure how to do the others

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@dannytybrown @Mr_CMartin @MichaelOllerton @edexcel Janet might want to know how many packets to buy to get a certain number of sweets

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Over a year without an update to mathpuzzle.com. This is almost as sad as when memepool faded away.

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People (+@monsoon0) I think I've found the coolest mathematician flickr.com/photos/smithso… (though now a philosopher faculty.sites.uci.edu/pjmaddy/)

1 favourite 1 retweet

There are artisanal integers - brooklynintegers.com/about/ - but where's the curation? I want to add "you may also like these integers" feature

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In reply to @FOTSN

@FOTSN thanks!

1 favourite 0 retweets

At mum's. She's bought the Saturday Torygraph. It's a seemingly endless nested recursion of fold-outs and supplements. Currently at level 4

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge oh, you got that as well?

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In reply to @JanvierUK

@JanvierUK and my mum calls it the Torygraph. She claims it has better supplements at the weekend. Given how many there are, that's likely

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The OEIS wants help picking pictures to go on T-Shirts, tote bags, etc. oeis.org/OEIS_pics.html

1 favourite 2 retweets

In reply to @monsoon0

@monsoon0 "and particularly" wouldn't fit, nor would "people at large"

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In reply to @NotAdric

@NotAdric @RealityMinus3 @icecolbeveridge a mystery! There's nothing missing.

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In reply to @stecks

@stecks whaaaaaaaat!

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In reply to @CounterOfSheep

@ajkiddle there should be a word for the way that statement feels satisfying considered on its own

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I always try really hard to check usage rights and attributions on the aperiodical. I wonder if it's worth the effort

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo quite

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb your latest sciam post was plagiarised here: weeklytimesnews.com/a-few-of-my-fa…

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"Tan Tan Revolution" was there for the taking. google.co.uk/maps/place/Tan…

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In reply to @elinoroberts

@elinoroberts not hopping to the right frequencies, clearly

2 favourites 0 retweets

In reply to @davidwees

@davidwees @PaulaKrieg @mathhombre @GHSMaths @Gelada @aperiodical polar-to-cartesian transform plus sth. else gives

3 favourites 2 retweets

In reply to @MouldS

@MouldS but what I'd really like is a set of wedges in certain angles so I can reveal my veg's inner polyhedra en.wikipedia.org/wiki/Table_of_…

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In reply to @PaulaKrieg

@PaulaKrieg handwrote it! Roughly, (x,y) in the transformed image corresponds to (cos(x)*(y^10), sin(x)*(y^10)) in the original, ...

1 favourite 1 retweet

In reply to @christianp

@PaulaKrieg ... where x goes from 0 to 2*pi, and y goes from 0 to 1

1 favourite 0 retweets

In reply to @peterrhague

@PeteHague @mathhombre often, European names were given to things by Europeans because they didn't know about earlier discoveries

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In reply to @christianp

@PeteHague @mathhombre and that's a problem because it gives the false impression that very little maths was invented outside Europe

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December

Arg! @TweetsofCushing just completely got me with a corker of a fake Terry Tao fact

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(we try to slip fake facts about terry tao past each other. It's a fun game)

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Have become aware of this: tefal.co.uk/cook4me
It does like 10% of the cooking for you. Should stick a face on it and sell it to kids

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"Cook for Me, I only eat gruel anyway"

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"Cook for Me, what's a fork and what would I use it for?"

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In reply to @aPaulTaylor

@aPaulTaylor they've found a way to make the BBC's famously gnomic headlines even more mysterious. I applaud them.

1 favourite 0 retweets

In reply to @helenarney

@helenarney that's a good sign that you didn't get desperate, isn't it?

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In reply to @CardColm

@CardColm $5.12?

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Wherein CP slowly recreates most of google docs inside a computer algebra system twitter.com/NclNumbas/stat…

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A mechanism to automatically roll dice and check if they're fair. markfickett.com/stuff/artPage.… Fancy recreating it, @MouldS and @standupmaths?

2 favourites 1 retweet

I made a tool to unfurl an image, and I thought it would be worth sharing: christianp.github.io/unfurl-image/ (cc @PaulaKrieg)

8 favourites 4 retweets

In reply to @PaulaKrieg

@PaulaKrieg @joshgiesbrecht @Simon_Gregg exactly

1 favourite 0 retweets

just updated it so you can drop a new image on top. Fun! twitter.com/christianp/sta…

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb I didn't know this was a thing! Not sure how I feel about it.

0 favourites 0 retweets

In reply to @jjaron

@jjaron I've never heard him do a science story well

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb e^(e^5) ≈ 2.5*10^64, while the number of atoms in the universe is around 10^80, so I'm inclined to agree

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Have been using split vim panes inside tmux all morning. Now I press Ctrl before every keypress. Send help.

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In reply to @pkrautz

@pkrautz no big deal, I get way more through the aperiodical

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In reply to @MathUpdate

@MathUpdate @sxpmaths ahh, I've been meaning to post about this! It's good, but I'm worried the puzzles seem to be hardcoded

1 favourite 0 retweets

nooo! twitter.com/BirdGuides/sta…

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In reply to @Bishnavitch

@Bishnavitch maybe tomorrow night? Helen's out, so could go to yours

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In reply to @Samuel_Hansen

@Samuel_Hansen I have like ten minutes

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In reply to @benjamintormey

@BenTormey to what extent is the statement, "I'm really good at getting people to open envelopes", on a letter in a sealed envelope, false?

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN ahh, I would've shown you an old money version of that in Newcastle if it wasn't for and angry parking man!

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @Tomboktu @aperiodical so nearly made the same joke myself

1 favourite 0 retweets

Having some more fun with image unfurler christianp.github.io/unfurl-image

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I have 300gb free on my laptop's hard disk. I feel I should fill it up. Am I a disappointment to my laptop?

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!!!!!! twitter.com/alixiswright37…

1 favourite 0 retweets

In reply to @pkrautz

@pkrautz I think making him that bit smaller tips it over the edge

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In reply to @mscroggs

@mscroggs no! I solved the first one and promptly forgot about it. Will look now

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In reply to @icecolbeveridge

@icecolbeveridge @PlaneMirrorArt @srcav didn't need to. My arrival was foretold

0 favourites 1 retweet

Successfully remembered all the settings for a password I set up through getvau.lt on only my second attempt. Winning!

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(well, third attempt if you count when I forgot I used getvau.lt at all and tried to type an intelligible password in directly)

1 favourite 0 retweets

6 hours later, the dog is tired. To celebrate, we're having a friend and her 7 year old over for lunch 😯

1 favourite 0 retweets

What a nonsense stat! Differences of 0.4% and 0.3%. So basically the same.

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths get yourself a tub of this amazon.co.uk/THORNTON-ROSS-…
I find it... emollifying

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Wife got the binary sequence on Only Connect. Never been so pleased!

2 favourites 0 retweets

My Nana sends the best texts

2 favourites 0 retweets

trufax. twitter.com/stecks/status/…

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In reply to @JanvierUK

@JanvierUK Jamie Carragher is the Freddie Krueger of dirty tackles

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson oh, is that what it is? We've had no DNS all morning here at Newcastle

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Ours just said "intermittent problems". Interesting difference in attitude

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TeX might be Turing complete, but that doesn't mean it's possible for *me* to make it compute any function

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(might have spent literally all afternoon trying to work out how to expand parameters in a certain way)

1 favourite 0 retweets

In reply to @mathforge

@mathforge yeah, but I'm making a system that's supposed to integrate with any lecturer's notes. Some are still on vanilla TeX!

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In reply to @mathforge

@mathforge ... yes

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In reply to @mathforge

@mathforge thanks. I feel like I'm just missing one simple idiom for what I want to do. If I could spend a day fiddling about, I'd have it

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In reply to @mathforge

@mathforge it's to do with reading label definitions in from an aux file, then writing something else out to a different file

0 favourites 0 retweets

In reply to @christianp

@mathforge my line of thinking is, leave parsing TeX up to TeX, and write out something in a format my other tool can use

0 favourites 0 retweets

In reply to @mathforge

@mathforge oh no, the external tool is the destination. I take in tex files and need to give the other tool a list of labels in the document

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In reply to @christianp

@mathforge anyway, I got it working hackily earlier, but I'd like to see if I can do it better

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @MathsJam not bonfire night!

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Is there a "Wolfram|Alpha shouldn't" account to go along with @wacnt? twitter.com/jason_koebler/…

4 favourites 4 retweets

In reply to @vidthekid

@vidthekid @wacnt yes!

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In reply to @vidthekid

@vidthekid @wacnt so the answer is, as far as I can see, 46 (or 48, if you count Nagorno-Karabakh and South Ossetia)

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I've just discovered "horse latitudes" are a thing en.wikipedia.org/wiki/Horse_lat…

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett @johndavidread it's doing ($1500) (Canadian to American), and misinterpreting the 2nd as "Canada to America"

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett @johndavidread of course, "$1500 canadian" is a completely reasonable thing to expect to see and understand.

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In reply to @JanvierUK

@JanvierUK hobbies. Free time. It doesn't, really.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett @johndavidread we've actually been having a discussion about notation for units at work today, for @NclNumbas

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In reply to @christianp

@icecolbeveridge @peterrowlett @johndavidread conclusion: just about every permutation you can think of is acceptable notation somewhere

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In reply to @haggismaths

@haggismaths @MegaMenger Total sides visible in this photo: ??

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In honour of Ada Lovelace, go mad writing things using punchcards. christianp.github.io/punchcards/

5 favourites 4 retweets

This diagram doesn't sugar-coat it: the complex plane is bad news.

1 favourite 1 retweet

Non-geordies, settle a dialect question: would you ever use "wagon" to refer to a motorised vehicle? Is it an old fashioned usage?

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor yeah, I think that's an Americanism

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz huh? The star-wagon Enterprise?

0 favourites 0 retweets

Just got a pull request on an old project I'd forgotten about. GitHub is nice! github.com/christianp/bui…

1 favourite 0 retweets

When the text you want to copy is exactly one page-down long. #satisfying

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Just noticed @stecks sneaked a τ into today's Aperiodvent calendar window! Boo! twitter.com/aperiodical/st…

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Your occasional reminder that colouring links red and removing the underline makes them invisible to me.

1 favourite 0 retweets

In reply to @rmathematicus

@rmathematicus @peterrowlett oh well! It's still fun.

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In reply to @rmathematicus

@rmathematicus I feel like you've corrected me on this before. The fact refuses to stick in my mind.

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In reply to @rmathematicus

@rmathematicus @aperiodical huh? We do. What did we say?

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In reply to @rmathematicus

@rmathematicus oh crumbs, just spotted it. Will fix.

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In reply to @ColinTheMathmo

@ColinTheMathmo it was earlier on - we had that Menabrea's article was about the difference engine, which it wasn't.

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In reply to @ColinTheMathmo

@ColinTheMathmo what should I check?

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In reply to @ColinTheMathmo

@ColinTheMathmo @rmathematicus I've changed the text to "would have used punchcards to input data". Is that better?

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In reply to @ColinTheMathmo

@ColinTheMathmo I've added a caption to the DE pic saying what it is. Hard to find good pics of the AE...

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@Cohomologist @rmathematicus @peterrowlett if the analytical engine had been made in Ada's lifetime, she would've used punchcards, right?

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In reply to @ColinTheMathmo

@ColinTheMathmo righto, will try to pin them down

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Disappointed that @eelDonaldTrump doesn't exist

1 favourite 1 retweet

In reply to @chalkdustmag

@chalkdustmag *plots* .... oh! That's nice!

1 favourite 0 retweets

In reply to @OddballDave

@OddballDave I did a few laps, no end in sight

1 favourite 0 retweets

Topological law strictly forbids the eating of clopen-hooved animals

1 favourite 1 retweet

In reply to @stecks

@stecks @peterrowlett I "fixed" it

0 favourites 0 retweets

In reply to @jjaron

@jjaron and not just the same adverts for more time - I reckon d(advert)/dt will increase

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In reply to @jjaron

@jjaron they at least seem to have realised that running them in Newcastle probably isn't too effective

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In reply to @jjaron

@jjaron I think the first. There are much cheaper and less public ways of swaying politicians.

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In reply to @jjaron

@jjaron this article explained the situation well: citymetric.com/transport/uks-… for most cities in the UK, it's easier to fly to Schiphol

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In reply to @jjaron

@jjaron maybe some people would prefer to stay in the UK for as long as possible?

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Now that's a book I want to read! I'm convinced the golden age of maths book design is well behind us.

4 favourites 0 retweets

In reply to @rmathematicus

@rmathematicus @RrrichardZach @Cohomologist @peterrowlett mind not @-ing me any more? My phone's been buzzing a lot

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Yessss! Two orders into my christmas shopping, I've memorised my new debit card number. And this one doesn't have any symmetries.

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I've just found paperspac.es, which shows you some nice art while listing paper sheet sizes. And why not?

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In reply to @peterrowlett

@peterrowlett and the Aperiodical's only (officially) a few months younger. Mad!

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In reply to @Gelada

@Gelada @standupmaths I feel the line break is important, like it's saying "No, ball games allowed".

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In reply to @georgeboole200

@georgeboole200 I recognise that party hat! aperiodical.com/2015/03/george…

1 favourite 0 retweets

In reply to @theoremoftheday

@theoremoftheday @stecks @aperiodical @TauDay ding dong merrily on pi, more like!

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Using a vauxhall gearbox is like dragging a wooden spoon through a bowl of whipped cream with some gears hidden in it

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In reply to @benjamintormey

@BenTormey you need to be much smaller to enjoy a bath. I haven't had a nice bath since I was 12

1 favourite 0 retweets

Giants: Citizen Kabuto for free! @aperfect rockpapershotgun.com/2015/12/11/gia…

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Christmas card time. Pretty pleased with this one.

3 favourites 0 retweets

In reply to @samholloway

@samholloway I'm heading to Tynemouth market right now, then going on to the victorian market at North shields

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In reply to @samholloway

@samholloway and it was rubbish. Don't bother going

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In reply to @samholloway

@samholloway snow? I've just seen endless miserable rain here

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In reply to @mrob_27

@mrob_27 @aperiodical I'd had that saved as "a cool thing to share" for ages, so it was a natural advent calendar item

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Z̴̲̲͖̘a̝̳̰l̤͓g̷ò̫̖͔̜̪,̳͖ ̩̼̦͖͍H͈Ẹ̦͈̩̫ ͙̳C̰̙̬̤̜O̝͎͚̳͎͞M̙̹̞͉̠͓E̢Ș̙̠̀

2 favourites 0 retweets

Now worried I'll be the victim of a Wicker Man scenario on the links on new year's eve twitter.com/samholloway/st…

1 favourite 0 retweets

In reply to @stecks

@stecks @standupmaths @Andrew_Taylor or, alternately: youtube.com/watch?v=wNV3iz…

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In reply to @matheknitician

@matheknitician @stecks @standupmaths @Andrew_Taylor that's a shame! It's a bit late for us to run a knitting competition, isn't it? Hmm

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In reply to @icecolbeveridge

@icecolbeveridge @AKWhitney elect me, and I promise An End To Minus Signs In Our Time

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I see I got an email from Royal Mail at 4:30am saying my package was out for delivery, and one just now saying they failed to deliver.

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That didn't give me much opportunity to say nobody will be home for precisely 90 minutes between 7 and 8:30

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From DPD: "Your parcel will be delivered today. Not going to be in?" - How can I answer that? I'm going to be in at some point today.

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo "clearly" has always annoyed me. You're right that it signifies "you need to think", but there must be a better word

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In reply to @ColinTheMathmo

@ColinTheMathmo however, my absolute least favourite word in maths is "simply". Never overestimate your reader!

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SORCERY! twitter.com/daveredfern/st…

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In reply to @peterrowlett

@peterrowlett @stecks marvel as Katie wraps a Sierpinski gasket!

1 favourite 0 retweets

Is the Scottish Book like the Scottish Play, or does it really not have another name? springer.com/in/book/978331…

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In reply to @peterrowlett

@peterrowlett wow! That is quite a feat. Still waiting for mine.

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In reply to @Andrew_Taylor

@Andrew_Taylor how many Nectar points for a prehensile tail?

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One for @wacnt: area of the shadow of a Mandelbrot set rotated by π/12 radians about the origin

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I know I'm a Geordie so this has less weight, but I was stood outside in just a t-shirt last night and it was fine. Madness.

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical argggg, one day the auto-tweeter will use the featured image, but clearly not today!

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This little critter must have misheard me: I want to bang a *nail* in.

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith why does everything in applied maths have a line through it?

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Got some Norwegian kroner to give as a Christmas present and they're covered in snowflakes! @standupmaths

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I feel like the University Challenge tournament format looks like this from above: sethgodin.typepad.com/.a/6a00d83451b…
Does it ever end?

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In reply to @mike_geogebra

@mike_geogebra @MrHonner crikey, was that really four years ago? I was but a bairn!

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Watching the QI christmas special, there's a chap with a t-shirt saying "log_4(2^wit)". So cool. I bet he's on twitter.

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK it can be rewritten to wit/2. Does that help?

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In reply to @mattyridesmith

@matthewgundel has the backlash for that not started yet? I don't order pâté any more because of this

1 favourite 0 retweets

Just noticed the people in the house opposite have an eight-pointed snowflake in their window. Oh dear!

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In reply to @sxpmaths

@sxpmaths we got halfway through the first episode before deleting all the episodes off our PVR. Does it get better?

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In reply to @helenarney

@helenarney it looks like you're drinking an absolutely enormous invisible margarita

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In reply to @evelynjlamb

@evelynjlamb ahhh, jinx! I've had this idea bubbling round for a while (minus the drinks) - someone explains their research to me, an idiot

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There are 1528 1s, 5s, 2s and 8s in total in the decimal representation of 1528!.

1 favourite 0 retweets

2016

January

Hand-painting signs for my new historical bird sanctuary, Swans Upon A Time

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Writing out price tickers for my new recycled movie prop crockery shop, "Plate Again, Sam"

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Installing hand-washing stations at my new luxury vajazzling parlour, "Glittoris"

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Help @TweetsofCushing pick a maths book for his soon-to-be 14 cousin. Do there exist any books that teach you real maths, not just stories?

3 favourites 2 retweets

Like, Bellos and de Sautoy books are wonderful, but what about a book with theorems and proofs in it?

1 favourite 2 retweets

*du Sautoy, oops.

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In reply to @suevanhattum

@suevanhattum @TweetsofCushing what's "Math Girls"? We're British, might be hard to get hold of

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via @suevanhattum, "Math Girls" looks very interesting en.wikipedia.org/wiki/Math_Girls

1 favourite 1 retweet

In reply to @jjaron

@jjaron probably the latter

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In reply to @standupmaths

@standupmaths have you seen 2016 = 3³+4³+5³+6³+7³+8³+9³ yet? From Bob Lyons on the seqfan mailing list.

6 favourites 4 retweets

I've never seen such a straight banana!

3 favourites 0 retweets

I'm making a new year's resolution to eat more chocolate. Homing in on the stationary point of weight=f(chocolate) by bisection

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Currently entranced by this youtube.com/watch?v=7rn4By…

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New sequence! First of 2016. oeis.org/A264688 -
The decimal digits of n appear n times in the decimal representation of n!.

0 favourites 1 retweet

I found this mind-melting visualisation on codepen: codepen.io/missingdays/pe…

3 favourites 3 retweets

This is good, but you can't filter by usage rights, which makes it difficult to use. Boo. twitter.com/monsoon0/statu…

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The sky outside is an odd colour. Shades of William Gibson, "colour of a television tuned to a dead channel" etc.

3 favourites 0 retweets

In reply to @christianp

@christianp all I can say is hooray for automatic colour correction. If I wasn't colourblind I'd describe it using words

1 favourite 0 retweets

couldn't resist breaking the pattern in the recent flurry of tweets twitter.com/l_incompletude…

1 favourite 0 retweets

In reply to @monsoon0

@monsoon0 I've written a comment on their facebook page

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK wordpress.com? Or if you want to do it by hand, github pages plus something like pancake.io

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In reply to @monsoon0

@monsoon0 they suggest I contact the IMU Archivist.

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How do you feel about [k]_n as notation for "k modulo n"?

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wow that's awful twitter.com/Tegglington/st…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge you might well ask!

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In reply to @njj4

@njj4 that may be where this particular person is coming from

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In reply to @noneatnamesleft

@noneatnamesleft it's not normal trains though, so 3 minutes is reasonable

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In reply to @monsoon0

@monsoon0 I might ask the person involved why he thinks it's a good idea. It certainly doesn't look pretty!

1 favourite 0 retweets

just got the same bit of journal spam at both my uni address and my gmail. Wonder what could lead both to fall in the same database

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In reply to @HilariousCow

@HilariousCow if you were doing it for someone else, they'd have to give you sick time. Not a waste!

1 favourite 0 retweets

Reasons to go to decimal numbers when computing remainders mod n:

<blank space>

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This guy! You know how it's fun to joke that applied mathmos don't do real maths? This guy is actually like that.

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In reply to @mike_geogebra

@mike_geogebra well, *that's* interesting!

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In reply to @mike_geogebra

@mike_geogebra ... but that link doesn't work for me - I just get a blank canvas

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In reply to @mike_geogebra

@mike_geogebra ... because twitter lost the ] on the end of the link. Oh well!

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In reply to @Andrew_Taylor

@Andrew_Taylor something something magical realism

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In reply to @mike_geogebra

@mike_geogebra @standupmaths @tombutton ok, check this out! web.geogebra.org/?command=A%3D(…

1 favourite 2 retweets

Button in Outlook: "Click to like this message". What's next, "Click to like this poo?" before I flush?

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One problem with writing worked solutions to lecturers' homework problems for a living is that I'm going to make rookie mistakes quite often

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Like, we've got this huge bank of questions that nobody bothered to write answers to, so I've got to go and write explanations.

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Inevitably, some of my explanations will contain some absolute howlers of fallacies or misunderstandings. My brain has a low melting point!

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In reply to @helenarney

@helenarney @stecks @standupmaths imagine how the duvet could possibly end up outside the cover when you're done. QED!

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In reply to @christianp

@helenarney @stecks @standupmaths my wife is VERY STRICT about making the corners match properly, so this would drive her insane

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In reply to @helenarney

@helenarney @stecks @standupmaths doing a video.....

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In reply to @Kat_Arney

@harpistkat @stecks @helenarney @standupmaths in other news: duvet covers have zips?! Why hasn't *this* life-changing tech reached me?

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In reply to @helenarney

@helenarney does this make things any clearer? youtu.be/8F9soJuFuks

3 favourites 0 retweets

In reply to @SLSingh

@SLSingh cor! You prompted me to find this fascinating patent google.com/patents/US2008…

2 favourites 1 retweet

In reply to @SLSingh

@SLSingh and this bubble life support machine! janvormann.com/kinetic-object…
Yours knocks it into a cocked hat. How bizarre

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"The 30 CSS Selectors you Must Memorize" - ... isn't that all of them?

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In reply to @jjsanderson

@jjsanderson hey, that's a hexcopter!

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In reply to @jgrahamc

@jgrahamc me too! Could 2015 have been the year when the curse was finally broken?

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In reply to @jjsanderson

@jjsanderson #internetpedantrypolice

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ahh yesss this is my kind of page stdkmd.com/nrr/repunit/
and (10^23-1)/9 is my kind of number!

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99999999999999999999999999999999000000000000000000000000000000009999999999999999999999999999999900000000000000000000000000000001 is prime!

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What is this incoherent nonsense? bloomberg.com/bw/articles/20…

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(Found that while looking for a high-res version of that Leibniz portrait where he looks like a sack of potatoes in a wig)

1 favourite 0 retweets

If you received a christmas card from me this (last?) year, this might eliminate some confusion flickr.com/photos/christi…

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In reply to @peterrowlett

@peterrowlett whaaaaaat

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In reply to @peterrowlett

@peterrowlett classic CLP mistake - left privacy settings on "private"

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The Big Cat and the postman are now taking turns to walk past our house. Poppy the puppy might actually explode.

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In reply to @standupmaths

@standupmaths there's no link to makeanddo4d.com on standupmaths.com that I can see! The book cover image links to itself

1 favourite 0 retweets

I thought I might never finish this one!

2 favourites 1 retweet

In reply to @standupmaths

@standupmaths do you have a subroutine about VBA macros?

2 favourites 1 retweet

In reply to @aperfect

@aperfect bought it last time it was that price :)

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Alphabetising my dvds. Very strong tendency towards the first third of the alphabet

1 favourite 0 retweets

In reply to @jamesgrime

@jamesgrime threw them all away when I moved in with my wife. Now everything we have fits in one bookshelf

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Breakdowns by letter. Strong showings for B, M, T (helped by Band of Brothers, Modern Family and Tintin box sets)

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Breakdowns by letter. Strong showings for B, M, T (helped by Band of Brothers, Modern Family and Tintin box sets)

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WHY WOULDN'T YOU WRITE "Disc 2" ON DISC 2?!?!

2 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime I've resisted alphabetising for years. It goes against every instinct. Mainly doing it as busywork on a rainy afternoon

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Now: the sleeves for the DVD holder are numbered, and I just threw them in a pile. More sorting!

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In reply to @evelynjlamb

@evelynjlamb or by the 24th century, people have realised that "for he's a jolly good fellow" is the far superior song

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Not long until @Christiansmas 30. What improbabilities will the people of the CP-celebrating world achieve this year?

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@TheBardOfTysoe flattered, but looking at the replies it seems a couple of people have already solved it

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Noticed a fact about oeis.org/A087192

2 favourites 1 retweet

Another nice way of writing 2016, from Simon Plouffe

4 favourites 5 retweets

Problem with writing number theory exercises: keep finding sequence to put in the OEIS

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For example, this: oeis.org/A179195

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Today: hacking a shoddy replica of just enough of polynom to get by, in MathJax.

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Today: training myself to do long multiplication by column instead of by row. It's fine if there are no carries

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Invigilating a test in a computer cluster. Every student but one has sat where I can't see their screen.

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In reply to @HilariousCow

@HilariousCow next year's sequel: Zulu invasion

1 favourite 0 retweets

In reply to @FOTSN

@FOTSN would buy for my Agatha-mad wife, but that's basically a one-way ticket to my own overly elaborate murder

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN and soak the pages in arsenic... Yes, yes, I'll get her first! It's the perfect murder! (pun intended? Not sure)

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Inspired! twitter.com/wacnt/status/6…

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Made a thing to explore a cool pattern found by Dan Asimov (among others) codepen.io/christianp/ful…

1 favourite 0 retweets

Suppose I asked you to find the inverse of an integer a, mod m. How would you do it? Some reasoning about the last digit?

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge yes, turns out I've already written a worked solution doing exactly that, four years ago...

0 favourites 0 retweets

In reply to @jjaron

@jjaron when I was in 6th form I attended a cambridge open day where they showed off an Euler disc. I was like, "oiled disc?!"

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths finding the intersection points is hard. Doing the integrals is easy.

1 favourite 0 retweets

It's a big deal. twitter.com/JanvierUK/stat…

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In reply to @JanvierUK

@JanvierUK thanks!

0 favourites 0 retweets

I've updated my 30 second challenge game to let you change the time limit christianp.github.io/30secondchalle…

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Put in order of who you would rather fight: 1 30-year-old, 2 15-year-olds, 3 10-year-olds, ..., 30 1-year-olds

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If you filled in "4 7.5-year-olds" in the gap there, you lose the fight by default.

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Not sure I agree. 10-year-olds are impressionable; I reckon I could turn at least a few of them to my side. twitter.com/robeastaway/st…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge those Terrible Twos, though!

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no twitter.com/TweetsofCushin…

1 favourite 0 retweets

I had the idea for this game yesterday. Does it work? christianp.github.io/duopoly/

0 favourites 0 retweets

In reply to @ChrisHazell72

@ChrisHazell72 yes. Each end of your line butts against another line.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ChrisHazell72 I'll add a diagram

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In reply to @peterrowlett

@peterrowlett @ChrisHazell72 @icecolbeveridge it needs to be in the same row

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In reply to @christianp

@peterrowlett @ChrisHazell72 @icecolbeveridge I was thinking of changing the wording to "if you draw a line between two existing lines"

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In reply to @peterrowlett

@peterrowlett @ChrisHazell72 @icecolbeveridge yeah, was thinking of doing that too

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In reply to @peterrowlett

@peterrowlett @ChrisHazell72 @icecolbeveridge I've added little protruding willies when lines connect. Better?

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On a lazy Saturday afternoon, the dog's getting in her #hourofcode

1 favourite 0 retweets

In reply to @Gelada

@Gelada superd'alembertnana?

1 favourite 0 retweets

I've changed the scoring rule on the game I made yesterday. I think it works now. christianp.github.io/duopoly

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson or, in a large proportion of cases, a series of anticlimaxes taking place over several years

0 favourites 0 retweets

In reply to @henryseg

@henryseg I thought the choice of tiling was due to the data structure used to store the world. Tried to understand it a while ago; failed.

0 favourites 0 retweets

In reply to @henryseg

@henryseg if I remember correctly, he cites this for the algorithm to make a hyperbolic "grid": link.springer.com/chapter/10.100…

1 favourite 1 retweet

Just thought about Wes Anderson and now I'm acting like a Wes Anderson character again. Man.

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts @gwydionuk it's like silk!

0 favourites 0 retweets

Tracey Ullman's new show is really good. I'm too young to have expected it, but I think she must have always been this funny

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths I'm going to cite this tweet in a blog post. Should I call you Haggis, or your real name?

0 favourites 0 retweets

In reply to @mathemaniac

@mathemaniac or, an expansion of brackets puzzle

1 favourite 0 retweets

In reply to @SLSingh

@SLSingh I feel like just this was a minor plot point in Good Omens. Or was it another comedy apocalypse novel?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett chuck in a couple of gradians too en.wikipedia.org/wiki/Gradian

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Association of Train Operating Companies is called "ATOC", which I read as "A to C", i.e. where British trains tend to go instead of B.

1 favourite 2 retweets

ATOC, where you must change to a bus replacement service for your onward journey to B

1 favourite 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor disappointed the story is not about Roger Federer's shadow breaking away, Prince of Persia style, and disrupting matches

0 favourites 0 retweets

In reply to @profhelenwilson

@helenjbradley there's a way of changing the viscosity of breadcrumbs...

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @TimHarford some pertinent real maths: arxiv.org/abs/physics/03…

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @TimHarford or, to heck with snowmen, clearing snow off a driveway is NP-complete arxiv.org/abs/cs/0603026

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In reply to @Andrew_Taylor

@Andrew_Taylor @icecolbeveridge here's my sketch of a snowman standing at a flip chart to work out the formula:

8A

1 favourite 0 retweets

Secondary teachers: would you be able to claim attending an academic conference on e-assessment as CPD? Is there any paperwork you'd need?

0 favourites 3 retweets

In reply to @icecolbeveridge

@icecolbeveridge but I know how he smells

0 favourites 0 retweets

In reply to @numberphile

@numberphile I think @CardColm did last year

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett *counts* ... 3. We have a winner!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett this is MUCH better than the other mathematical stamps site I know!

0 favourites 0 retweets

has anyone put together a 4tronix initio kit with a raspberry pi? I've got one and what came in the box does not resemble the instructions

0 favourites 0 retweets

In reply to @MathsJam

@MathsJam I was like... "Bristol is up early!" but if you're Brisbane it makes much more sense

1 favourite 0 retweets

Turns out you *can* get Adobe Reader to show you God's Own metric units in the print dialog forums.adobe.com/thread/972932?…

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs Twitter's having all sorts of problems today. If it's a missing tweet, that's the cause.

0 favourites 0 retweets

v. nice, would evaluate again twitter.com/CloudoidLtd/st…

1 favourite 0 retweets

Suddenly overcome by tiredness, so I'm not @MathsJam-ing tonight. I might be on the secret slack channel

0 favourites 0 retweets

In reply to @markstaylor

@markstaylor @Andrew_Taylor @aperiodical @icecolbeveridge let the record show I was all in favour of running puzzlebum

1 favourite 0 retweets

In reply to @haggismaths

@haggismaths @TheJHawk @downlaods @Ayliean @MathsJam next challenge: checkmyworking.com/misc/princess-…

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @MathsJam oeis.org/A001175

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In reply to @icecolbeveridge

@icecolbeveridge nice low sequence number as well. It's fun to guess how low the sequence number might be before you search the oeis

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Cor, this is a nice image hidden in the OEIS oeis.org/A001175/a00117…

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In reply to @robotmaths

@AdamCreen @peterrowlett I dunno, whatever you need to do to legitimately spend a school day at a conference

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In reply to @robotmaths

@AdamCreen yeah.

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In reply to @icecolbeveridge

@icecolbeveridge
Dear Uncle Colin,

\pmod{100}.

Yours,
the Keep TeX Tidy campaign

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Well punned, but: "Insiders pronounce the χ of TeX as a Greek chi, not as an ‘x’" tex.stackexchange.com/questions/1750… twitter.com/icecolbeveridg…

0 favourites 0 retweets

In reply to @christianp

@christianp welp, that's the most humourless thing I've said in a while

0 favourites 0 retweets

This answer is also correct in bases 2,3,4,5,6,12,15,20,30 and 60. So your ans... flyingcoloursmaths.co.uk/?p=4997#commen…

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Dude in Maplin surprisingly unknowledgeable about wires. Have stocked up on a variety, as well as LEDs & switches, to play @Raspberry_Pi

1 favourite 1 retweet

In reply to @drvinceknight

@drvinceknight @CardiffUniMaths "£68 million for lottery tickets? I knew I shouldn't have continued with probability"

1 favourite 0 retweets

Just under 500 questions, covering most of a maths degree and many service courses, free to use! twitter.com/NclNumbas/stat…

2 favourites 0 retweets

arrrrr I can not get this Pi to do anything!

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In reply to @mathforge

@mathforge not even that :(

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @mathsarcade where do you have your maths arcade? We have a common area, but I don't want stuff to be pinched!

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This is why I don't wear shirts: £70 for a completely bog-standard shirt 2tall.com/so-long-sven-t…

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Please: your suggestions for "obviously finite" sets of numbers (so no "the set of people on Earth", for example)

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difficulty: a first year student ignorant of all Cool Maths outside the syllabus has to understand it twitter.com/icecolbeveridg…

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In reply to @icecolbeveridge

@icecolbeveridge factors of <random number between 2 and 100> is good though

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In reply to @icecolbeveridge

@icecolbeveridge that fails "obviously", I reckon

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In reply to @icecolbeveridge

@icecolbeveridge it's not *immediately* obvious. I need students to breeze past these and use their cardinality in the actual question

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge (1) already got, (2) you wouldn't believe how many think this is empty at first glance, (3) they're codes, not numbers

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crikey, Simon Beck has upped his game thisiscolossal.com/2016/01/simon-…

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Spent the morning making this. It finds interesting intersections of public corpora christianp.github.io/intersections/ @FOTSN

19 favourites 8 retweets

In reply to @Thalesdisciple

@Thalesdisciple "if it's not Heinz, it's not ketchup"

1 favourite 0 retweets

It blinks!!!

1 favourite 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin @FOTSN yeah, there's a list of "stop words" in the repo so I filter those out

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen it would be tough to sneak past the editors

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem I have previous with this: the X is rubbish (or just foreign) aperiodical.com/2012/08/lets-t…

1 favourite 2 retweets

In reply to @mathsjem

@mathsjem correct answer

2 favourites 0 retweets

Forget Maplin! It turns out the best electronics shop in the country is just behind my mum's house esr.co.uk

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge if this is an attempt to get us to summon Beetlejuice, you.... might succeed

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor realised last night I can just block the app that makes them. Blissful peace!

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths @joernchen @MathsJam @alech those are all the solutions of minimal length

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Had been wondering why 6 Music is suddenly tolerable to me. Just realised it started around my 30th birthday. #olddudeproblems

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.@wacnt number of times someone has tried to book a table at McDonald's

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In reply to @jamesgrime

@jamesgrime there seem to be fewer and fewer properly comfy chairs these days

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Trillions of troubling trilobites! #cap10haddock

1 favourite 0 retweets

Quadrillions of quarrelsome quokkas! #cap10haddock

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Millions of marauding monkfish! #cap10haddock

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In reply to @TweetsofCushing

@TweetsofCushing xkcd.com/1310/

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This hasn't stopped being amusing yet christianp.github.io/intersections/

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minus the sonnets

0 favourites 1 retweet

non-rockin' scientists, and non-scientific rockers

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Today: checking randomised number theory questions

1 favourite 0 retweets

So did anyone else re-felt their shed roof today? #windy #diy #windiy

1 favourite 0 retweets

In reply to @aperfect

@aperfect yeah, but what's the Bovril situation?

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In reply to @standupmaths

@standupmaths @jamesgrime @MouldS this, but middle one is lower, and there are holes so other two drip into it. Use for oil & vinegar. Bosh.

0 favourites 0 retweets

The bounding! twitter.com/dog_rates/stat…

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In reply to @mathpunk

@mathpunk are you now... seampunk?

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February

I think I might be drinking fairy liquid. Did I forget to rinse this bottle out?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge ahh, I thought I fixed that in the last one, but forgot for this one. Can you fix it?

0 favourites 0 retweets

In reply to @ProfJimSmith

@ProfJimSmith @SLSingh I use RPN! On iPhones, CALX is good aperiodical.com/2015/04/review…, and on Android I use RealCalc play.google.com/store/apps/det…

0 favourites 0 retweets

In reply to @GreyAlien

@GreyAlien my brother-in-law's girlfriend did that as well, from Newcastle. Something odd is going on!

0 favourites 0 retweets

In reply to @profhelenwilson

@helenjbradley they've done this many times before. An email to help@ingentaconnect.com usually leads to them quietly removing the price

0 favourites 0 retweets

Today I almost crashed the car because I was chortling at the idea of a horse-sized duck

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge I'm aware of the standard, but now I need to check that @NclNumbas does typeset e upright.

0 favourites 0 retweets

Will someone who doesn't know how to use Skype know what this tweet means? twitter.com/ToonLibraries/…

0 favourites 0 retweets

In reply to @NoelAnn

@NoelAnn having done this kind of shoot before: how do you twist yourself round that camera? I found I had to write at arm's length

0 favourites 0 retweets

@dannytybrown This might be of interest aperiodical.com/2013/04/art-fo…

1 favourite 0 retweets

The bane of my life: a library with a million undocumented configuration options

0 favourites 0 retweets

In reply to @NoelAnn

@NoelAnn maybe more of a problem because I'm a lefty

0 favourites 0 retweets

Starting from some fun maths about the area of an inscribed circle, I made this christianp.github.io/circle-designs…)

5 favourites 4 retweets

In reply to @gingerbeardman

@gingerbeardman Kuehne Nagel kn-portal.com

1 favourite 0 retweets

In reply to @gingerbeardman

@gingerbeardman I... knew it off the top of my head. Not sure why.

1 favourite 0 retweets

In reply to @chalkdustmag

@chalkdustmag wait - if I collaborate with you, that produces another mathematician? So "collaboration" is what the kids are calling it now?

1 favourite 0 retweets

A good piece about one of my favourite websites: artisanal integers neverendingbooks.org/artisanal-inte…

0 favourites 0 retweets

In reply to @christianp

@christianp .. oh, I see that it's by Lieven le Bruyn, who found it through me. Cool!

0 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag mathematicians don't admit a group structure - that's why they're so hard to herd

2 favourites 0 retweets

In reply to @MrHonner

@MrHonner Yuck, US date format! Everyone knows it's 4^2=16

2 favourites 0 retweets

omg Canal St integers is even better canalstintegers.com

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Ooh, I like this one christianp.github.io/circle-designs…)

1 favourite 0 retweets

In reply to @pkrautz

@pkrautz oh boo. Worked on my phone, but slowly. I'll see if I can do something.

0 favourites 0 retweets

I've added a screensaver mode to my circle design thing christianp.github.io/circle-designs/

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I'ma get some hot Belgian waffles in /
I keep my euros in my Tintin tin.

#eurorap

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In reply to @CounterOfSheep

@ajkiddle is this what "intersectionality" is all about?

0 favourites 0 retweets

A NEW FIGHTER ENTERS youtube.com/watch?v=QIqMp-…

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Nowhere near as good as Cooking With Dog youtube.com/watch?v=j71ggL…

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I own a few of these! Cor! twitter.com/MikeAtherton/s…

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Twitter, what's this called?

1 favourite 0 retweets

Any advance on "pan support"? Mum rejected that as lacking in poetry twitter.com/icecolbeveridg…

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Better! twitter.com/icecolbeveridg…

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I think we have a winner twitter.com/aPaulTaylor/st…

0 favourites 0 retweets

In reply to @apgox

@apgox @Parcly_Taxel which will work until they change the API!

1 favourite 0 retweets

Am I stupid for taking a full minute to find a "read the article" link on this ScienceDirect page? sciencedirect.com/science/articl…

0 favourites 0 retweets

Typing in a terminal and accidentally pressed caps lock, prompting an anxiety flashback to DOS

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View in my new office. Was working out whether the sun will shine directly into offices unfashionable in the 60s?

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All Watched Over by Oisíns of Loving Grace. #irishdystopia

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Wikipedia page on Oisín inexplicably has no link to Irish Micks and Legends bbc.co.uk/programmes/b05…

0 favourites 0 retweets

This is a fun site: isthatabignumber.com (@itabn_andrew) - write a number with units, and it puts it in context

2 favourites 2 retweets

In reply to @christianp

@christianp I'm coining the term "one-shot Wolfram|Alpha subset"

0 favourites 0 retweets

In reply to @jjaron

@jjaron is there a maximum speed that new information about gravitational waves can propagate?

0 favourites 0 retweets

I'm going to be in sunny Kelso with m'wife and m'dog on this month's @MathsJam night. Opportunities to do maths will be limited.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston because whitespace is important and keeping track of changed ids would be a nightmare. Not much benefit otherwise

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Current office status: cold and noisy. At least there's a working PC, otherwise I'd be right at the bottom of the office Maslow hierarchy

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"nineteen, ha! ha! ha! twenty, ha! ha! ha! ..."
<commercial break>
"... twenty-one, ha! ha! ha! ..." twitter.com/icecolbeveridg…

0 favourites 0 retweets

In reply to @NoelAnn

@NoelAnn @Telegraph unfortunately, it's a load of nonsense

0 favourites 0 retweets

Hang in there, Bentley! twitter.com/dog_rates/stat…

2 favourites 1 retweet

In reply to @algoritmic

@algoritmic I recently made a thing based on a related discussion on the math-fun list: codepen.io/christianp/pen…

0 favourites 0 retweets

In reply to @algoritmic

@algoritmic thanks! Plenty more on my github too

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle "funny weather we're having". There's a man on my estate who's settled on using that no matter how boring the day

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge they're learning at an early age how much they dislike talking about their feelings. Good nursery. Very British.

1 favourite 2 retweets

Just realised I should've called @NclNumbas "Exam-O!"

0 favourites 0 retweets

Forget, "<verb>r.com" and "<nonsense>.ly", I'm pushing hard on "<verb>-o.com".

2 favourites 0 retweets

My #favouritefemalescientist is Hazel Perfect, because I assume we're related, and she did good maths. theoremoftheday.org/CombinatorialT…

0 favourites 0 retweets

In reply to @samholloway

@samholloway have you found somewhere to sit that isn't one of the enormously expensive eateries?

0 favourites 0 retweets

In reply to @samholloway

@samholloway (if you go down the stairs towards the gates, there's a lovely quiet bit with only a WH Smiths to annoy you)

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira …th-the-moral-amibvalence-of-the.ninja

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira if-a-blog-posts-an-update-and-nobody-reads-it-is-it-an-update-at-all.zen

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A bit of stupid maths for a sunny February afternoon. twitter.com/aperiodical/st…

0 favourites 0 retweets

In reply to @Thalesdisciple

@Thalesdisciple @MathPaper ah, math.HO, last resort of the scoundrel

1 favourite 0 retweets

Hahahahahahaha twitter.com/every_peano/st…

1 favourite 1 retweet

The account @every_peano is writing cheques that Twitter's tweet ID specification can't pay.

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith particularly fiery Valentine's breakfast?

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith start playing "smoke gets in your eyes" just before it reaches the bedroom

1 favourite 0 retweets

Working through a mensa calendar I was given for christmas. Solve this without knowing it's an obtuse mensa puzzle

0 favourites 0 retweets

Installing Ubuntu. Something makes me think my next job might be to find a graphics driver

1 favourite 0 retweets

In reply to @mathforge

@mathforge now I've booted, yes I do. Turns out getting my mouse to connect is more pressing, though

0 favourites 0 retweets

In reply to @mathforge

@mathforge got it sorted now thanks. Working out which fields had focus with this corrupted screen was a fun challenge!

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK no, but I assume you're on the right track

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen if it is, it won't be because of me - we're driving up to Scotland for a couple of days! Terrible timing

0 favourites 0 retweets

If it's like this at the coast, today might not be the best day to drive up over the hills to the borders. ⛄

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN @BBCRadio4 finally! The pilot was very good

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN fair enough!

0 favourites 0 retweets

Does this count as a @MathsJam? I'm playing tantrix in a hotel in Kelso with my wife and my dog.

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @MathsJam clearly playing as red. She's got the uniform

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Welp I know what'll be chasing me in my nightmares tonight

4 favourites 2 retweets

In reply to @lyd_w

@lyd_w @IanMayor where?

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston our research group spent a whole year trying to understand Cuntz-Krieger algebras

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz thanks!

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway some computation of each station's mackerel: Elm Park: 'townish'; Goodge Street: 'painful'; Oxford Circus: 'wealthy'.

0 favourites 0 retweets

In reply to @christianp

@christianp @robeastaway as far as I can see, there's no station which does not have a "mackerel word"

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway will become false if any station's name is an anagram of another's, for example

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway ooh, Clapham Common has the "distributive" property ;)

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge oh, that's a good point. I misunderstood Python defaultdict. Most stations don't have a mackerel world :/

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @aPaulTaylor @icecolbeveridge here's my working gist.github.com/christianp/a5c…

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @aPaulTaylor @icecolbeveridge here's a challenge: longest journey you can make by changing only at stations named after people

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In reply to @robeastaway

@robeastaway @aPaulTaylor @icecolbeveridge ok, longest path without repeats..

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In reply to @robeastaway

@robeastaway @aPaulTaylor @icecolbeveridge anyway, the Circle line isn't really a circle at the moment

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In reply to @kirel

@kirel worldcat?

0 favourites 0 retweets

The problem with making a mental note is that sometimes you find them again and you can't remember when they were for

0 favourites 0 retweets

Is anybody else's mind palace, like, this:

2 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight that song's from Madagascar now, not the Chewits advert? Eesh

0 favourites 0 retweets

Remember last year's algebraic roadworks? This year, x=1.5

9 favourites 5 retweets

In reply to @FOTSN

@FOTSN @ColinTheMathmo Colin's a time Lord?! Makes sense, now I think about it

2 favourites 1 retweet

In reply to @DavidB52s

@DavidB52s @FOTSN @ColinTheMathmo (I'm a bit hazy on how Doctor Who works)

1 favourite 0 retweets

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s talk to @icecolbeveridge

0 favourites 0 retweets

@katemath see also: Arty Maths aperiodical.com/category/colum… (art with maths in it, not art made to show maths)

1 favourite 0 retweets

.@wacnt ShortLex-earliest unique set of initials of a living person

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Picture of moon in background for reference: ✓ twitter.com/amermathsoc/st…

0 favourites 1 retweet

Turning 30 has changed me: I've spent the last four weekends in B&Q, I've sorted out my savings and now I'm looking at energy efficiency

1 favourite 0 retweets

Merge cookie clicker and code golf: write functions which earn points proportional to their efficiency when clicked

0 favourites 0 retweets

I think that's a brilliant idea, but I'm ten minutes into coding it and it's going to take AGES

0 favourites 0 retweets

This idea could work! christianp.github.io/code-clicker/

0 favourites 0 retweets

But now: house cleaning

0 favourites 0 retweets

Stop what you're doing, everyone - my mum has made the BEST. SHORTBREAD. OF ALL TIME.

2 favourites 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft sry, ''s all n my mouf

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths did the same thing with an M&S make-your-own birthday card: came with a sticker for each digit, used 1 as -, made 2^5-1 👍

0 favourites 0 retweets

Under the new definition I think my dog qualifies as a planet: leashed to a cafe table leg, she has cleared her orbit of all other material

1 favourite 0 retweets

Doritos are like the anti-Pringle - I really struggle to eat more than four or five. Yuck.

0 favourites 0 retweets

Get into work on Monday morning and... nobody has emailed me over the weekend. That's an unexpected delight!

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow do you have an opinion about The Club? I got on quite well with that

0 favourites 0 retweets

Just walked past a student who looked like a miniature version of @ben_nuttall. Ben Nuttall Zero?

1 favourite 1 retweet

In reply to @futurebird

@futurebird not just been listening to this recently, but it always gives me emotions youtu.be/wmhACB1ZPQM

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo when are you in Newcastle?

0 favourites 0 retweets

In reply to @metroapologises

@metroapologises both my trains were on time today. I feel you should apologise

0 favourites 0 retweets

March

In reply to @ColinTheMathmo

@ColinTheMathmo don't think I am. christianperfect@gmail.com

0 favourites 0 retweets

Why bother getting a PhD? Lots of people call me Dr Lawson-Perfect anyway.

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo misread your tweet, disregard that tweet

0 favourites 0 retweets

"Brilliant funeral insurance sweeping the UK", the advert says. I highly doubt it.

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem @icecolbeveridge sqrt(x-1)= +- (u-4). If you pick -(u-4), you don't cancel the 4 on the bottom

2 favourites 0 retweets

In reply to @mathsjem

@mathsjem @icecolbeveridge there's no confusion if you start by writing `u=4+sqrt(x-1)`, which is what you want so the fraction ends up easy

2 favourites 0 retweets

In reply to @mathsjem

@mathsjem @sxpmaths @icecolbeveridge yikes! Classic domain error.

0 favourites 0 retweets

In reply to @NewsfromYHN

@NewsfromYHN might want to have a look at @CleanForTheQuee 's only tweet.

0 favourites 0 retweets

Last time the Tories asked us to clean something up, it was our morals and it turned out many of them were raging perverts.

0 favourites 1 retweet

So this time, who wants to take a £5 bet on a cabinet minister turning out to be a super-hoarder?

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle substitute "profligate litterer"

0 favourites 0 retweets

In reply to @aperiodical

@aperiodical so far I have "mountie", and that's it

0 favourites 0 retweets

In reply to @mathhombre

@mathhombre I would do a violin plot

1 favourite 1 retweet

Who talked about Hnefatafl at @MathsJam? Someone's made an android version play.google.com/store/apps/det…

1 favourite 0 retweets

LED candle with a temperature sensor so you have to hold a match to it to turn it on. #halfbakery

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall amateur. One of our postgrads used a supercomputer to write 30gb of zeros to a file

1 favourite 0 retweets

In reply to @DavidMJourno

@DavidMJourno @C_J_Smith is a polar plot a good choice? Admin v teaching for younger unis looks almost the same length to me

0 favourites 0 retweets

In reply to @christianp

@DavidMJourno ... and research looks half as much as admin for younger unis! I'd have to get my protractor to convince myself they're =

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut @chalkdustmag I'm in London in a couple of weeks. Can I pop in to see Team Chalkdust and pick up a copy?

0 favourites 0 retweets

In reply to @tynesidecinema

@tynesidecinema of all the films to unexpectedly turn into a dystopian prophecy, Be Kind Rewind was pretty far down my list.

1 favourite 0 retweets

In reply to @chalkdustmag

@chalkdustmag @Pecnut 👏

0 favourites 0 retweets

Google Now keeps asking me if I'm interested in cricket. I keep saying no. How will this end? Will it end?

1 favourite 0 retweets

What do you call the opposite of pragmatism? twitter.com/eqdynamics/sta…

0 favourites 0 retweets

Just said "do you want a hand?" to the dog. Bet she does. Stupid good-for-nothing paws.

2 favourites 0 retweets

Has anyone seen this before?

4 favourites 2 retweets

Spent the day making this: isthisprime.com/239539

9 favourites 9 retweets

In reply to @mscroggs

@mscroggs @Pecnut @chalkdustmag I *am* around on the evening of the 16th!

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN must be a Helen thing: the one in my photo belongs to my wife

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb there's a 3d printer file somewhere if you follow the links in the post

0 favourites 0 retweets

19999999999999900019 is probably a prime number!
isthisprime.com/19999999999999…

8 favourites 14 retweets

Success! (#spoilers)

7 favourites 2 retweets

In reply to @C_J_Smith

@C_J_Smith that's some good dadding!

1 favourite 0 retweets

Yesterday I got the computer to decide if a number is prime, today it is YOU who must decide! isthisprime.com/game/

22 favourites 29 retweets

In reply to @KristianStill

@KristianStill done! Add ?max=N to the end of the URL, e.g. isthisprime.com/game/?max=50

1 favourite 0 retweets

Teachers who liked the prime game: I've added an option so you only get numbers up to a certain maximum. E.g. isthisprime.com/game/?max=50

2 favourites 1 retweet

In reply to @mathforge

@mathforge no, and don't have access to a mac, sorry!

0 favourites 0 retweets

In reply to @mathforge

@mathforge Ahh, I always forget which of that and textContent is the real one. Will fix I'm the morning.

0 favourites 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth try isthisprime.com/game/?difficul…

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths thanks! If it gets too easy, try isthisprime.com/game/?difficul…

2 favourites 1 retweet

In reply to @standupmaths

@standupmaths @TheMerovius look upon my works, ye mighty, and despair.

1 favourite 0 retweets

Well done! First person to get more than 2 on their first go? twitter.com/returnnull/sta…

1 favourite 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn thank you very kindly! I was wondering how I could fit in seeing Colin. Can I come to the first show?

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths that's had me the last few times as well

0 favourites 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn @ColinTheMathmo I meant outside the show, but another viewing of the jugglenaught is always welcome

1 favourite 0 retweets

In reply to @CounterOfSheep

@ajkiddle we're always happy to publish anything you write on @aperiodical. Will get a large-ish audience.

1 favourite 0 retweets

I've added a settings page to the "is this prime?" game. Ramp up the difficulty! isthisprime.com/game/

2 favourites 2 retweets

So it is possible to set up a github repository from your phone: the code for isthisprime.com - github.com/christianp/ist…

1 favourite 2 retweets

In reply to @alexbellos

@alexbellos Big Chicken Barn in Maine has a big collection facebook.com/Big-Chicken-Ba…

0 favourites 0 retweets

Be still my heart twitter.com/extremefriday/…

1 favourite 0 retweets

*boggles* youtube.com/watch?v=3ITOhy…

0 favourites 0 retweets

*blushes*

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*tabulates*

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So, I've written a small PHP script which is filling up a MySQL database at a frightening rate. Nothing can go wrong, right?

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Aha! Finally managed to take a screenshot of a score over 50

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#transferableskills twitter.com/johndavidback/…

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In reply to @robrolfemaths

@robrolfemaths @johndavidback that's pretty good!

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I'm giving a Pi Day talk at Ustinov College, Durham University, on Monday the 14th. All welcome! community.dur.ac.uk/ustinov.gcp/in…

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In reply to @icecolbeveridge

@icecolbeveridge rats! I'll need to keep playing

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In reply to @CantabKitty

@CantabKitty @alexbellos whoops! Should work now. Amazingly, your the first of thousands to try it on IE.

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In reply to @CantabKitty

@CantabKitty commiserations

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In reply to @peterrowlett

@peterrowlett I will be talking about... basically the same thing!

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In reply to @peterrowlett

@peterrowlett I've planned mine, just need to make some slides. Had an encouraging chat with @ColinTheMathmo today to set myself at ease

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In reply to @for_the_winn

@for_the_winn yeah! I really want to change my login screen background. No .tar.gz is understandable-ish.

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In reply to @peterrowlett

@peterrowlett it leads up to that, yes

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In reply to @peterrowlett

@peterrowlett maybe continue this on the slack channel

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@blathersmaths17 pretty well!

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Have a gander at some stats isthisprime.com/game/record.php

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In reply to @lazymarky

@lazymarky good luck with that! Have you played the game? It starts showing numbers above 100 at around 20 score @icecolbeveridge

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@StevenD1974 sort of,yes - three.onefouronefivenine.com

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v hard to type while having nosebleed

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In reply to @aperfect

@aperfect doiiiii

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In reply to @jgrahamc

@jgrahamc a 56k modem is like speaking to the internet in shakespearean English right now, so around 20 years?

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So glad I set this up checkmyworking.com/misc/the-mathj…

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It's frankly incredible that, in a few seconds, I could find this page from an 1897 copy of a Chicago newspaper archives.chicagotribune.com/1897/02/21/pag…

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Thank you, archivists. Thank you, computer vision people.

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Just downloaded a file from an ftp server. Haven't done that in a while!

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In reply to @CultureMath

@CultureMath la fonction supplémentaire, c'est le jeu! Mais d'accord, c'est beaucoup plus divertissant

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In reply to @evelynjlamb

@evelynjlamb does he know your national anthem is sung to the tune of a drinking song?

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In reply to @Chykary

@Chykary so you're the reason 2% of games have a score over 100!

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In reply to @KristianStill

@KristianStill @mathsjem it makes me so happy to read that. Thank you!

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In reply to @Calculord

@Calculord @MrDownin really? It shouldn't do. I wonder what I've done wrong.

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In reply to @alexbellos

@alexbellos I've collected some stats about the primes game - thought the list of final numbers would interest you isthisprime.com/game/record.php

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In reply to @aPaulTaylor

@aPaulTaylor looks like it

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In reply to @robotmaths

@AdamCreen that's ridiculous

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In reply to @_Frky

@_Frky made a change, try now - once you get over the hump at ~1300 score, primes are so rare it can blister away

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In reply to @stecks

@stecks seeking venture capital for my new startup providing milk and cookies when you dial 0, *anywhere*

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In reply to @stecks

@stecks so far I've got milkandcooki.es, or tbrkr (teabreak-r)

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Whoah! Clearly eating a banana while playing #isthisprime is the way to go!

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THE BUGLE IS BACK! thebuglepodcast.com

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Quite pleased with this one.

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Prompted by a bug report, I've updated the building houses game I made for @jamesgrime to add a house picture christianp.github.io/building-house…

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In reply to @alimcg86

@alimcg86 *hug*

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Spot the deliberate mistake. #protanomalyblues #protanomalybrowns

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In reply to @CloudoidLtd

@CloudoidLtd no, I can't. I should be there this month

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In reply to @_Frky

@_Frky then you won't like this score that my beefier work PC just achieved

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In reply to @icecolbeveridge

@icecolbeveridge I'm in London on Wednesday! When do you need to leave?

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TONIGHT: I'm giving a talk on how to calculate π to ludicrous precision at Ustinov College, Durham University community.dur.ac.uk/ustinov.gcp/in…

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browsing the unicode tables, as you do, I've found my new favourite way to write one half: graphemica.com/%E0%B5%B4

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In reply to @_Frky

@_Frky it shouldn't be using add_queue any more once you're a few moves in - try clearing your browser's cache

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In reply to @icecolbeveridge

@icecolbeveridge I'm in a conference for some number of days, but if you're ever near Tower Bridge it would be nice to meet for a bit

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In reply to @christianp

@icecolbeveridge hours, not days...

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In reply to @_Frky

@_Frky aha, I hadn't pushed the latest code to github. Reload and have another look at next_n

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In reply to @icecolbeveridge

@icecolbeveridge boooooo!

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In reply to @icecolbeveridge

@icecolbeveridge (for both the pun and the sentiment)

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This is delightful youtube.com/watch?v=VYr0yr…

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Crikey, front page of metafilter: metafilter.com/157882/In-shor… (the competitions link)

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Not bad, while I wait for my train.

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In reply to @henokh_lugo

@henokh_lugo @mscroggs @alexbellos see also this, which I made a while ago http://christianp.github.io/circle-designs…)

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Pretty! brandonpelfrey.github.io/complex-functi…

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Later on today, I've got a three hour train journey. I might have a bash at the @chalkdustmag crossnumber

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In reply to @robeastaway

@robeastaway Can't give him *nothing*... I wonder what the minimum viable award for a maths prize is. Erdős had the right idea

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In reply to @robeastaway

@robeastaway a cheque for a small amount - $25 for easy ones, ~$1000 for mind-bogglingly hard en.wikipedia.org/wiki/Paul_Erd%…

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Just got a weird call from a telemarketer offering me a "custom coded website" to go on isthisprime.com.

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"You have selected to receive Artfinder's newsletters 4 times per week" - fairly sure I didn't, and isn't that insane?

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The radical herb. twitter.com/qikipedia/stat…

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London-bound, despite the best efforts of the virgin East coast m-ticket system. Cake required.

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In reply to @christianp

No longer feel bad about having a disabled adult railcard, because I was about to have a ruddy meltdown and it saved me

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In reply to @icecolbeveridge

@icecolbeveridge yeah, but it's marginal. I think this is the first time it's helped me, in 10 years

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Literally one-upped. Grudging congratulations. twitter.com/blathersmaths1…

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@blathersmaths17 there's no upper limit, and once you get past 10 digits you might as well press "no" all the time.

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An hour and a half into my journey to London, my @chalkdustmag crossnumber framework works (50% of the whole trip)

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In reply to @mscroggs

@mscroggs @chalkdustmag divn't knaa about that like, I'm 13 clues in and it's found an inconsistency. Slow work!

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eugh, just realised I'll have to argue with the barrier person at king's cross and then with a call centre to get my return ticket to appear

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Maths, probably!

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What if these circles were true isochrones? If only @mathsinthecity was still going

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Dodecahedra! (and cubes, who cares about cubes)

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In reply to @peterrowlett

@peterrowlett maybe so. Or, I was too cheap to pay for privacy protection when I registered the domain

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In reply to @Hivemeitner

@Hivemeitner @Suw oh, was it already a thing?

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In reply to @Hivemeitner

@Hivemeitner this is a whole world I have no knowledge of. Hadn't considered a competition - the person yelling needs to know the answer

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In reply to @Hivemeitner

@Hivemeitner I mean, I can get on board with portals to other worlds but this game is a stretch too far

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Phew! I was worried I was doing it inefficiently twitter.com/Gelada/status/…

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Well, this is quite a thing! Wavey pointy thing of choice for mathmo wizards mateturismo.wordpress.com/2016/02/25/los…

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The rooms in this conference centre seem to be named after London prisons.

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Two hours to waste in London before the @chalkdustmag launch. Where should I go?

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In reply to @chalkdustmag

@chalkdustmag NO WAY! I left a moment too soon!

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In reply to @chalkdustmag

@chalkdustmag 😁

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Londoners! I have a full day to waste in the metropolis - can I drop in on any of you?

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A prime-numbered Boris bike! Thanks isthisprime.com!

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Another one! Collection tag for the tate modern cloakroom #isthisprime

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I did?! twitter.com/Chykary/status…

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In reply to @chalkdustmag

@chalkdustmag so, about that t-shirt... I'm in Bloomsbury

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In reply to @chalkdustmag

@chalkdustmag yep, sure. I'm wandering round the British museum at the mo, then I'll head up to you. Can you dm me exactly where to go?

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In reply to @icecolbeveridge

@icecolbeveridge @nastyoldmrpike @NEdge9 no, this is evil: bet you can't get 100

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In reply to @aPaulTaylor

@aPaulTaylor at what point do you think this anonymous coward skimmed to the end of your Rubik's article? aperiodical.com/2014/03/how-to…

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In reply to @aperfect

@aperfect I'd watch the F1 quail highlights

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In reply to @MarHarStar

@MarHarStar @bluecombats @mscroggs already got it, thanks!

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Have just become aware of the concept "Fully Automated Luxury Communism". That's made my week already.

1 favourite 1 retweet

In reply to @C_J_Smith

@C_J_Smith what does that mean?

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Interesting data from my primes game: more people think 1 is prime than think 5 is composite (when in a hurry).

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In reply to @C_J_Smith

@C_J_Smith and you're waging war on the term?

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In reply to @icecolbeveridge

@icecolbeveridge haha. Have you got to 80 yet?

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In reply to @icecolbeveridge

@icecolbeveridge @Dragon_Dodo crikey! Well done!

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Need a library to manipulate or evaluate algebraic expressions in javascript? This'll do! twitter.com/NclNumbas/stat…

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In reply to @Dragon_Dodo

@Dragon_Dodo @icecolbeveridge "If you can keep your head / when all about you are losing theirs and claiming 57 is prime" etc. etc.

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The French postal service has issued a Sophie Germain stamp, and it's rather nice! Wonder if I can get a big version lejournal.cnrs.fr/articles/sophi…

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Amount raised for charity by @MarcusduSautoy by naming symmetries given to an interesting number of decimal places - www0.maths.ox.ac.uk/naming_symmetr…

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In reply to @stecks

@stecks @aPaulTaylor EUROVISION VOTING RULE CHANGE KLAXON eurovision.tv/page/news?id=b…

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Well, I know who I'm supporting for eurovision this year. youtube.com/watch?v=iP3USr… Now watch it fail to get out of the semifinals

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Suspect a team of Belgian lawyers spent a long time working out how much they needed to change Uptown Funk to not infringe its copyright

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"Is this prime" reached mumsnet. I can retire now. mumsnet.com/Talk/_chat/259…

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In reply to @aperfect

@aperfect 👍, but "Untitled", eh? supersonicfeet.com/photographs/57

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Have you visited my homepage? Is it too obnoxiously large? Or just obnoxiously large enough? somethingorotherwhatever.com

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In reply to @chalkdustmag

@chalkdustmag @icecolbeveridge help my sanity: for 40A, is this page correct to say it's 5362: chess.com/chessopedia/vi…

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In reply to @icecolbeveridge

@icecolbeveridge AAAAAAAAAA

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In reply to @icecolbeveridge

@icecolbeveridge OK, I don't know what a chess is. oeis.org/A083276

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In reply to @mscroggs

@mscroggs @chalkdustmag @icecolbeveridge put me out of my misery. Chess is rubbish.

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In reply to @icecolbeveridge

@icecolbeveridge yes, I think: I pick random # and give to you to add to your answer and hash. You send hash back and I compare with mine

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In reply to @icecolbeveridge

@icecolbeveridge e.g. md5(colin+n) = md5(cp+n)

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In reply to @icecolbeveridge

@icecolbeveridge well, if the hashes disagree then that just says your claimed answer is different to mine. If you lie, what's the point?

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In reply to @icecolbeveridge

@icecolbeveridge I don't give you my hash

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In reply to @icecolbeveridge

@icecolbeveridge we could make mine symmetrical by sending each other numbers to add

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In reply to @icecolbeveridge

@icecolbeveridge OK, I'm ready to check we have the same sum of across clues

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In reply to @icecolbeveridge

@icecolbeveridge right, my hash is f581d1f504c23bfc2d5e6a6715f03d41. (And for sanity, the hash of "1" is c4ca4238a0b923820dcc509a6f75849b)

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In reply to @icecolbeveridge

@icecolbeveridge Hooray!

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In reply to @icecolbeveridge

@icecolbeveridge so either I was spectacularly lucky with my lie (always a risk with zero-knowledge), or we agree

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oooo! explainshell.com

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In reply to @icecolbeveridge

@icecolbeveridge RATS!

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In reply to @icecolbeveridge

@icecolbeveridge hooray, I match!

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In reply to @icecolbeveridge

@icecolbeveridge I might be evil - currently computing hashes of all 8-digit numbers to see if it's feasible to brute-force the solution

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In reply to @christianp

@christianp @icecolbeveridge update: it's quite easy

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In reply to @icecolbeveridge

@icecolbeveridge so, I should've given you a public key to encrypt the number you want added on

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In reply to @christianp

@christianp @icecolbeveridge twitter works like git, right? We'll just back up a few commits and rebase

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In reply to @icecolbeveridge

@icecolbeveridge @mscroggs I've deleted my tweet giving you the number I want added

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In reply to @icecolbeveridge

@icecolbeveridge @mscroggs or that I asked you to add on 79145826830, to get hash 8db49e893bcfc3f1c74a4f04a5d93d87

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In reply to @icecolbeveridge

@icecolbeveridge @mscroggs maybe a better scheme would be: I ask you for answer mod (random number << answer), a few times

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Just got charged £1.60 not to use @My_Metro - I went down to the platform but didn't get on a train. Interesting edge case.

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In reply to @My_Metro

.@My_Metro Oh it's not that, my wife called me and offered me a lift instead. Keep the £1.60 - buy yourselves a new train 😄

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Every day I see this slogan on the side of a van: "we've got the sandwich market all wrapped up". It is a bad slogan!

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Like, "we've got the kickboxing league in a head-lock", or "the only way for this tunnelling company is up!" bad.

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In reply to @wilderlab

@wilderlab first number I can make following that format in two different ways: 7922 = 3^7 + 4^6 + 6^4 + 7^3 = 2^9 + 3^8 + 4^4 + 8^3 + 9^2

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In reply to @mscroggs

@mscroggs if I can't paint it black, it's not a good shape

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This looks so cool! twitter.com/Overcookedgame…

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But these are all rubbish! twitter.com/OxfordEdMaths/…

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Because I didn't give her any of my banana, the dog has gone to bed in a huff. Total diva.

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It's really good, but by level 10 my colour-blind eyes make it impossible twitter.com/ProfNoodlearms…

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In reply to @JanvierUK

@JanvierUK dm me

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In reply to @TweetsofCushing

@TweetsofCushing You have so many bad chugger experiences!

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April

In reply to @TweetsofCushing

@TweetsofCushing concentrate on the small concave white bits - intersection of circles of radius 1 and 1/2

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett I like and trust Colin a scalar multiple of the amount he does me

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In reply to @icecolbeveridge

@icecolbeveridge I'm so glad you reciprocate my feelings

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A good time-waster twitter.com/cs_kaplan/stat…

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On my way to Slough, land of dreams!

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In reply to @cnrlwlss

@cnrlwlss yes, I am aware of that poem

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Uncanny clock valley: one third of the numbers are the wrong way up

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T-shirt idea: waveform of someone saying "Oh, is that the amen break?"

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In reply to @icecolbeveridge

@icecolbeveridge there's an odd pipe character in the first line of that

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In reply to @CounterOfSheep

@ajkiddle that's almost as crazy as my dad's habit of putting leeks in fajitas

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In reply to @CounterOfSheep

@ajkiddle but I think Greggs's point is that mustard is an ingredient in mayo, to which they added some spices

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In reply to @icecolbeveridge

@icecolbeveridge how can that be? It's death of author plus 70 years, isn't it?

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In reply to @christianp

@icecolbeveridge ahh, wikipedia explains

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TIL my mum has drunk about 250,000 cups of tea in the course of her life

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Use the "is this prime?" game to practise both multiplication and data collection twitter.com/mhorley/status…

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@dannytybrown not really trivial, but more so than the last one

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@dannytybrown @sxpmaths I feel like these are the kinds of facts you'd find in Euclid...

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In reply to @jjaron

@jjaron depends on your definition of "he", I bet.

1 favourite 0 retweets

Another day, another person who thinks I have the title "Dr". Is there such a thing as PhD-by-reputation?

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson I've had a little project in mind for a while that needs some maker magic. Could I meet you to talk about it some time?

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In reply to @christianp

@jjsanderson the plan is to make this - christianp.github.io/clever-hans/ - using a toy horse and a solenoid or something to make its foot stomp

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In reply to @OddballDave

@OddballDave ask the Florida supreme court

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In reply to @chris_fairless

@chris_fairless did you ever see Dr Davison's "laptop"?

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In reply to @theoremoftheday

@theoremoftheday yes, well, that's close to my personal opinion too, but my blasted employer seems to think a PhD is worth a pay increase

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Growing evidence for the PhD-by-reputation twitter.com/samholloway/st…

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In reply to @jjsanderson

@jjsanderson @stecks Oh, we could do that too

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They've finally arrived! Very pretty indeed. @MathStack

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ooooooh! twitter.com/DrTrapezio/sta…

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In reply to @GraemeBoxwell

@GraemeBoxwell what's NELE?

0 favourites 0 retweets

In reply to @Htbaa

@Htbaa why should an SSD act any different to another storage medium?

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In reply to @jjsanderson

@jjsanderson can't decide which looks more majestic: amazon.co.uk/Animagic-TESSI… or amazon.co.uk/Tobar-19962-Tr…

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In reply to @jjsanderson

@jjsanderson (is one of them pink? Totally colourblind) @stecks

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In reply to @C_J_Smith

@C_J_Smith I'm wonderful? 😊

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This light switch doesn't give a damn

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In reply to @jjsanderson

@jjsanderson drag cling film over sandwich, keeping taut, until you've got twice the width of the sandwich... (1/N)

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In reply to @jjsanderson

@jjsanderson ... put down the free end, using top of sandwich for friction, then use free hand to tear edge using the serrated edge... (2/N)

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In reply to @jjsanderson

@jjsanderson ... pull box away from cling film, NOT vice versa, to rip it. Then put box down and tuck film under sandwich. Done! (3/3)

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In reply to @jjsanderson

@jjsanderson These instructions brought to you by a dyspraxic person who has to think very hard about it but has finally mastered it

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Today I restored a production database from backup 10 times while trying to finish an upgrade. In my defense, nobody was using it

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In reply to @JanvierUK

@JanvierUK Cameron: the lesser of a shower of evils

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Impressive Pythagorean tree built in minecraft m.imgur.com/a/9kMyw

4 favourites 1 retweet

In reply to @robinhouston

@robinhouston heard it, never used it

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In reply to @standupmaths

@standupmaths @stecks @aPaulTaylor I'm not prepared, oh no. I suppose I could show off Clever Hans, if I get round to building him?

1 favourite 0 retweets

In reply to @stecks

@stecks @standupmaths @aPaulTaylor was that ever a plan?

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In reply to @stecks

@stecks @standupmaths @aPaulTaylor P.S. I've lost my real correntator and it's made me very sad

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In reply to @christianp

@christianp @stecks @standupmaths @aPaulTaylor nvm it's in literally the first drawer I looked in

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Lots of grunt work to prove what should be an obvious point twitter.com/matthew_daniel…

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb not the coolest sieve. THIS is the coolest sieve en.m.wikipedia.org/wiki/Lehmer_si…

2 favourites 1 retweet

In reply to @stecks

@stecks @jjsanderson

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In reply to @jjsanderson

@jjsanderson @stecks we'll see about that. So, I think I need to build 2 relays, to operate the buttons from my rpi. Does that sound right?

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In reply to @jjsanderson

@jjsanderson it's powered by 2 AA batteries, and the buttons seem to directly connect the circuit. If I had a multimeter I could check?

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In reply to @jjsanderson

@jjsanderson @llewmihs well, can I pop in to see one or both of you on Monday or Tuesday?

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In reply to @jjsanderson

@jjsanderson @llewmihs actually now I think, monday's busy for me too. Tuesday?

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In reply to @benjamintormey

@BenTormey checks out: I've never set foot in a gym in my life and I'm happily married

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@llewmihs @jjsanderson better: I'm creating a speech-activated Clever Hans, a reification of this: christianp.github.io/clever-hans/

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In reply to @mscroggs

@mscroggs from IPA imbibe *

1 favourite 1 retweet

In reply to @jjsanderson

@jjsanderson @stecks @llewmihs I think my main problem now is practical - I can see how the circuit should work, but I'm too clumsy to do it

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Looking at ebay listings for curta calculators and regretting not buying one when they cost a quarter as much

0 favourites 1 retweet

New integer sequence: a recursive recurrence formula which I thought wasn't interesting, but the editors disagreed oeis.org/A268176

2 favourites 2 retweets

In reply to @mariana_farinha

@mariana_farinha you know that's me in the video, right?

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In reply to @mariana_farinha

@mariana_farinha ah, a new ebay assignment for you, then?

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In reply to @ben_nuttall

@ben_nuttall @jjsanderson @llewmihs thanks! Here's the problem: youtu.be/UfZAoCNCpbE I just don't know the name for what I need to make

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In reply to @mariana_farinha

@mariana_farinha the photoelectric sieve is cool, & the analogue integrators made in the 30s/40s. Both mentioned in aperiodical.com/2013/08/aperio…

1 favourite 1 retweet

In reply to @jjsanderson

@jjsanderson is it as simple as connecting one end to a GPIO pin and the other to ground, & setting the pin to high completes the circuit?

0 favourites 0 retweets

In reply to @alexbellos

@alexbellos I must be missing something - in the top row, how can a two-digit number + 1 equal a one-digit number?

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In reply to @christianp

@alexbellos never mind, it's numbers up to 16,not digits! Whoops!

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Buying fatigues for the ex-service employees of my new personal assistant agency, "Your Wish is my Commando"

1 favourite 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft I'm going to guess the higher incidence is mainly explained by erosion on the Tuxedo Royale

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Who wants an existential crisis? some1else.github.io/life/

2 favourites 2 retweets

When you implement a method required for a mixin it only turns out you need 10 minutes later. #clairvoyancydrivendesign

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In reply to @aperfect

@aperfect have you seen this? github.com/flickr/justifi…

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Opening the first location in my chain of stores selling food with unusual symmetries, Dynkin Donuts

2 favourites 0 retweets

A strikingly short OEIS sequence: oeis.org/A220950
Computation really is hard!

1 favourite 2 retweets

Beginning to wonder how much of our culture you could reconstruct from the OEIS alone oeis.org/A048659

5 favourites 2 retweets

In reply to @jjsanderson

@jjsanderson oh right, I'll pop over now. Where are you?

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Huge thanks to @jjsanderson and @llewmihs, who have electronicsed Clever Hans one step closer to reality twitter.com/jjsanderson/st…

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Fishy "can't win here" graphic in a tory leaflet. cc @icecolbeveridge

1 favourite 1 retweet

In reply to @C_J_Smith

@C_J_Smith this is a reference to something but I can't remember what

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In reply to @peterrowlett

@peterrowlett yes, and it's like the arXiv's math.GM: stuff the editors don't want, but can't refuse. It contains multitudes

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Crikey, was the Integer Sequence Review Mêlée Hyper-Battle DX 2000 really in 2013? As in three years ago? Yikes! aperiodical.com/2013/07/intege…

1 favourite 2 retweets

Good news, Newcastle friends! twitter.com/ben_nuttall/st…

1 favourite 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy last time I asked a group of people, a surprising number of them imagined vertical number lines!

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In reply to @jjsanderson

@jjsanderson I have a camera module for you. I'll pop over with it at 4 if that's OK?

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Mangled command line: `gut status`. Response: "peckish".

4 favourites 1 retweet

In reply to @ProfNoodlearms

@ProfNoodlearms gut status: 1 stale branch; no unstaged commits

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs type that hashtag five times fast

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In reply to @samholloway

@samholloway brain started parsing that as a Viz top tip because of the CAPITALS

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @zbvif and my kettle's heating element?

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In reply to @RichardCarter

@RichardCarter I've spotted some typos on your website: "work with on" at top of index; misspelt escape code on earlgreyandbattenburg.co.uk/2016/03/cathed…

1 favourite 0 retweets

I can now juggle three balls for over a minute! Hooray!

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Tune. youtube.com/watch?v=t--RbR…

0 favourites 1 retweet

In reply to @DrCaroSummers

@DrCaroSummers Insto-pedant: I take issue with the use of the Airbus A380 (a thing which has to be light) as a reference mass.

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In reply to @jjsanderson

@jjsanderson ah! I thought it had got lost in my jeans. Thanks!

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In reply to @Andrew_Taylor

@Andrew_Taylor don't even joke

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It seems that 17:45 is very much not the time to phone a loft hatch fitter. The first three I tried are all unavailable!

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Was expecting this to be a mentalist faith school, but unfortunately not! twitter.com/GuardianEdu/st…

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Clever Hans lives! youtube.com/watch?v=jlf1Wx…

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It took me longer to upload that 1 minute video to YouTube than it did to write the code. My internet is rubbish in the day time.

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You mean you don't have a pretty electronics box with a horsey in it? Shame.

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In reply to @jjsanderson

@jjsanderson I've got rid of the rest of the loose guts, so you can chuck that away too now

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Today I gave a toy horse the gift of brains. I'm like Geppetto mixed with the ruddy wizard of Oz, me. youtu.be/jlf1WxhLXIs

2 favourites 2 retweets

In reply to @evelynjlamb

@evelynjlamb tantric sex awareness

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If Sunderland gets to be city of culture after we didn't, I'm becoming an iconoclast.

1 favourite 0 retweets

Yeah Liverpool, we know you've got the Beatles, but that was ages ago. We tried so hard! #stillbitter

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Eugh. Another favourite spot ruined by the Campaign for Real Hail.

1 favourite 0 retweets

Had a brilliant birthday card idea for my pregnant relation who loves cats, but it turns out Mary Toft gave birth to rabbits, not kittens! 🐰

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Well here's a thing! flickr.com/photos/british…

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"Clanronald Macdonald" flickr.com/photos/british…

1 favourite 0 retweets

This recipe book seems ill-advised.

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Bum! I ordered a microphone for Clever Hans and now I've found out the audio jack on the Pi is output-only. Boo.

0 favourites 0 retweets

In reply to @NextLevelMaths

@NextLevelMaths thanks, I've ordered a slightly more expensive version of that which didn't have any reviews saying it falls apart

1 favourite 0 retweets

In reply to @monsoon0

@monsoon0 Yes, that book is very good!

1 favourite 0 retweets

The dog has realised that, much like her toy elephant, I have a bit in the middle that makes a noise when she squeezes it

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@katemath here's my view: aperiodical.com/2014/03/everyo…

1 favourite 2 retweets

Scandalous conjecture in the OEIS: only the first term of this sequence is known to be correct oeis.org/A110000

1 favourite 1 retweet

I made a colourful thing codepen.io/christianp/ful…

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The mean length of a year is ~365.24 days, meaning we need leap years. What fraction would produce the most awkward leap year rule?

3 favourites 3 retweets

In reply to @icecolbeveridge

@icecolbeveridge that was @TweetsofCushing's first thought too.

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In reply to @Quendus

@Quendus no, but there could be one that's more awkward earlier and more often than others

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In a seminar room with triangular desks. They minimise working area for people sitting at them - all the area's in the middle.

0 favourites 1 retweet

And of you put them together, you remove a huge amount of the perimeter. Terrible shape for a desk, or worst shape for a desk?

0 favourites 1 retweet

In reply to @Trianglemancsd

@Trianglemancsd @dandersod @Thalesdisciple Oh yeah, I'll say maybe worst convex shape. Concave is obviously worse

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In reply to @MrHonner

@MrHonner if you sit one person at each desk. These triangles each had 6 chairs around them.

1 favourite 0 retweets

A minimalist maze puzzle, regenerated every 20 minutes tilde.town/~sl2c/maze/

2 favourites 1 retweet

In reply to @samholloway

@samholloway *squints*

*golf applause*

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston without looking at the source, I think it's not the same hexagon

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In reply to @robinhouston

@robinhouston but you're not seeing all the hexagons at once

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In reply to @robinhouston

@robinhouston de-obfuscated code: gist.github.com/christianp/df5… change lines 182,183 to *= 0.5 to see how it works

1 favourite 2 retweets

In reply to @standupmaths

@standupmaths "protestors burned 2,000 copies of the wrong book in the town square yesterday"

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Lots of red herrings in this question. The diagram, for example. twitter.com/TweetsofCushin…

1 favourite 1 retweet

What should I do with these old cd cases? I like to keep them as mementoes, but they're just awkwardly on my PC atm

0 favourites 0 retweets

@EulerIsAPimp not enough cases

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Tanya Kohvanova's fed up with everyone sharing the solutions to puzzles on the net: blog.tanyakhovanova.com/2016/04/the-ba…
cc @ColinTheMathmo

7 favourites 9 retweets

texlive-full is a 1.8gb download on Ubuntu. That's a lot! Maybe I don't need *every TeX package ever*

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Just got the approximation √ 2 ≈ 1.42 by folding a piece of A4 paper. Not bad!

3 favourites 5 retweets

Oh cool, that study of gender representation on maths journal editorial boards has been funded experiment.com/projects/gende…

1 favourite 3 retweets

In reply to @kaysuza

@kaysuza @ColinTheMathmo I'll see if I can do a drawing or video at lunchtime

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo my method eventually falls foul of the "can't fold over more than X times" rule of thumb. Sound familiar?

0 favourites 0 retweets

Opportunity missed: they haven't issued a 90p coin for the queen's birthday. Or, even more commemoratively, a £90 note.

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Eugh, the @aperiodical news queue is so long, and I won't have time to do any posts this week.

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The most important website of our time standerorsitter.com

0 favourites 1 retweet

In reply to @TweetsofCushing

@TweetsofCushing yes, that's why I said it was a missed opportunity. PS £1.40 can already be done in 3

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc ah, QMUL! Not the only one in London - the side of the Ravensbourne building next to the O2 has one too flickr.com/photos/christi…

2 favourites 0 retweets

Best maths joke of 2016 twitter.com/jamesgrime/sta…

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson you're fine as long as you don't cause a segmentation fault

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Current status: I was a fool and ran rpi-update

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Hans's new home. It needs some decorating and it's a bit pokey, but it'll do.

0 favourites 1 retweet

In reply to @RobertTalbert

@RobertTalbert $100 plus a smartphone

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The Lato font's 'fi' ligature.

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In reply to @jjsanderson

@jjsanderson do I count?

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo that actually happened mirror.co.uk/news/uk-news/d…

0 favourites 0 retweets

In reply to @samholloway

@samholloway @katbrightlights it's from threadless threadless.com/designs/math

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Here's how I got a surprisingly good approximation to √2 by folding paper. twitter.com/aperiodical/st…

0 favourites 1 retweet

Hans now has a completely self-contained horse box!

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb __SUBTLE HINT__

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In reply to @mathsjem

@mathsjem thanks!

1 favourite 0 retweets

There's a new W3C community group for people interested in getting maths onto web pages: w3.org/community/math…

4 favourites 7 retweets

I'm going to be in Pretoria, South Africa, for June's @MathsJam night. Who's up for a southern hemisphere jam? @Pyfagorass?

1 favourite 2 retweets

In reply to @Pyfagorass

@Pyfagorass not yet. I know I get into Jo'burg in the morning and have to do things at Pretoria Uni in the day. I leave SA on the 23rd.

0 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass is Pretoria close enough for you to travel to just for the evening?

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In reply to @aperfect

@aperfect I am indeed! Doing training at the university

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In reply to @aperfect

@aperfect 16 hours each way though. Horrific.

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In reply to @icecolbeveridge

@icecolbeveridge several sub/sup brace errors around the sums. #texsupport

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In reply to @aperfect

@aperfect first flight is via Paris with 4 hour layover so 2h+10h30, second via Dubai for 2 hours, so 8h+7h40. :(

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In reply to @aperfect

@aperfect nope. I don't have trouble with noise on flights, just my legs!

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Finished half of my to-do list. As a reward, I'm going to spend some more trying to get Clever Hans to connect to eduroam

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston your ships thing is on metafilter! metafilter.com/158885/Interac…

1 favourite 0 retweets

Have I broken isthisprime.com/game on phones, or is mine just being rubbish?

0 favourites 0 retweets

In reply to @samholloway

@samholloway now that's weird, and not the problem I'm having

0 favourites 0 retweets

In reply to @samholloway

@samholloway ?!?! I don't understand this. On wifi or cell?

0 favourites 0 retweets

In reply to @samholloway

@samholloway phew!

0 favourites 0 retweets

In reply to @MouldS

@MouldS which other letters' dot matrix glyphs are subsets of another's? Could have some fun with this

0 favourites 0 retweets

If I've done things right, you can now add isthisprime.com/game/ to your phone's homescreen, just like an app!

2 favourites 3 retweets

In reply to @samholloway

@samholloway can you add it to your homescreen? (settings menu, then "Add to home screen")

0 favourites 0 retweets

Just tried to type "cd localhost" in a terminal. I have no idea why. What was I trying to do? Are my hands trying to usurp my brain, badly?

2 favourites 0 retweets

In reply to @robinhouston

@robinhouston wasn't Mozzarella a film starring Jane Fondue?

1 favourite 0 retweets

Happy birthday to the blog that I just about manage to write posts for sometimes. Now officially TOO(two) SQUARE(d) twitter.com/aperiodical/st…

2 favourites 1 retweet

Happy nⁿ day!

3 favourites 1 retweet

@dannytybrown "if you type (1+sqrt(5))/2 and hold it to your ear, you can hear the sea"

2 favourites 0 retweets

ear:hear :: eye:heye

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths @TimHarford since you touched it, has it stopped rolling yet?

0 favourites 0 retweets

In reply to @C_J_Smith

.@C_J_Smith its already arrived on my car

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson swap you an arduino for a camera module? Fancy popping in to see the horse, too?

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston @JDHamkins move your solution left a bit

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In reply to @robinhouston

@robinhouston just a liiiiittle bit more

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In reply to @robinhouston

@robinhouston Oh, I made a mistake! I started from not-a-solution to end up at rest must be your solution. Oops

0 favourites 0 retweets

In reply to @christianp

@robinhouston s/rest/what. Crikey, not doing well tonight.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston @JDHamkins @NemoPublius so, I was going to say the same sequence backwards, but the question asks for three integers

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In reply to @JDHamkins

@JDHamkins @NemoPublius @robinhouston I would say "an arithmetic sequence of three integers". Anyway, glad we're all on the same page now

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Of course that's fine! Do you know how to find me? Herschel building, 4th floor

0 favourites 0 retweets

Challenge: work out the difficulty setting twitter.com/SenfBrian/stat…

1 favourite 0 retweets

Today's test user

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @_TheGeoff @Dragon_Dodo it could well be prime something, but it's not a prime _number_

2 favourites 0 retweets

In reply to @henryseg

@henryseg they have boundaries in time

1 favourite 0 retweets

May

How many of you know the convention that in men's tops, the label either goes on the back of the neck or at the bottom left?

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith time to talk about globally unique identifiers

1 favourite 0 retweets

Auth code suddenly stops working because of timestamp mismatch. Turns out when I suspended my laptop, the VM's clock stopped

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I only have knowledge of men's tops, and assume women's are as inconsistent as all other women's clothing

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett you're the first (of ~10) person I've mentioned this to who recognised it. Weird!

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In reply to @peterrowlett

@peterrowlett yeah, I assumed VirtualBox was providing a "hardware clock" that follows the real one

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Yep, that's its intestine

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In reply to @robeastaway

@robeastaway on Saturday I had an awkward moment in B&Q because I'd forgotten the PIN for my new account, paying for a new bathroom!

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 I misread math.MG as math.GM; expected much lower quality paper

0 favourites 0 retweets

Very pretty graphs. Non-PDF link: arxiv.org/abs/1604.07134 twitter.com/outofthenorm2/…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge this is your regularly scheduled "you messed up the TeX" tweet: something's gone wrong at the bottom

0 favourites 0 retweets

I wonder how many times that intestine's been run over since then twitter.com/christianp/sta…

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I should either make bigger sandwiches, or a pair of smaller hands

0 favourites 0 retweets

Is the BBC falling for the bitcoin dude better or worse than falling for the Riemann hypothesis dude?

2 favourites 2 retweets

In reply to @libraryncl

@nclroblib crikey. Is there a THE award for "best use of gifs in a library"?

2 favourites 1 retweet

Yeah, the bitcoin thing is much easier to verify twitter.com/Apokrupto/stat…

0 favourites 0 retweets

Cowboys and Viking sagas, two of my favourite things tattuinardoelasaga.wordpress.com/2012/01/12/cow…

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor or, an A/B test caught in the wild?

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @Apokrupto I dunno, the bitcoin dude failed a pretty immediate sniff test

0 favourites 0 retweets

A QR code animation codepen.io/christianp/ful…

2 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor DBA desperately seeking symmetry

0 favourites 0 retweets

Just realised my boss isn't coming in until this afternoon and here's me sitting in all of my clothes all morning like a chump.

1 favourite 0 retweets

Also just realised my boss occasionally reads my tweets. To be clear, the most office nudity I've ever engaged in is taking my shoes off

2 favourites 0 retweets

In reply to @DrLucyRogers

@DrLucyRogers @jjsanderson youtube.com/watch?v=jlf1Wx… and github.com/christianp/cle…. I'm going to do a proper blog post about it at some point

2 favourites 1 retweet

In reply to @christianp

@DrLucyRogers @jjsanderson or if you want to play at home, there's a web version christianp.github.io/clever-hans/ (needs Chrome)

1 favourite 0 retweets

A short poem about the programming language Ruby

12 favourites 7 retweets

In reply to @standupmaths

@standupmaths I'm sure your publisher has an XML version of your book somewhere. That would look similar.

0 favourites 0 retweets

In reply to @stecks

@stecks not impressive. Helen's grandma is 95 next month

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I was within an hour's drive of Newcastle Wyoming once, and didn't visit. Still regret it, even if it had turned out rubbish

0 favourites 0 retweets

In reply to @ben_nuttall

.@ben_nuttall @stecks so we can continue this arithmetic progression either way: does anyone have a grandma who'll be 85 or 105 this year?

1 favourite 0 retweets

In reply to @christianp

@ben_nuttall @stecks mine was 84 in January - close, but no cigar! (no cigar being the secret to a long life)

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen very interesting, since I'm having my summer holiday in Ireland this year

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen that would be helpful!

1 favourite 0 retweets

Invigilating tests for two hours. You know what that means: seeing if I can crack 90 on isthisprime.com/game

0 favourites 0 retweets

Do any bookies offer their odds through an API? I want to make a "probably Oracle", which shows events weighted by the betting odds

0 favourites 1 retweet

Labour email: "We need you on polling day in Carlisle". Fairly sure you need me within half a day's drive of my home ward...

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge yes, just found it. Now to weigh up if I want to create an account to make it happen

0 favourites 0 retweets

Why don't coins have their value on one face in braille?

0 favourites 0 retweets

In reply to @stevieb

@stevieb @ABnry it would be nice to have braille as well though - it could be the one bit of braille everyone knows

0 favourites 0 retweets

Decimal digits of Champernowne's Champernowne's Constant Constant oeis.org/A008619

0 favourites 0 retweets

In reply to @miclugo

@miclugo the 19th century

0 favourites 0 retweets

In reply to @mrob_27

@mrob_27 weird. Dixit is a very good game - what did you want to know about it?

0 favourites 0 retweets

Blast from the past: this gloriously potty song just came on shuffle vimeo.com/5020497

1 favourite 0 retweets

It's worth verifying even the most obvious of hypotheses twitter.com/verge/status/7…

0 favourites 0 retweets

The person who named this library clearly wasn't English github.com/pyGrowler/Grow…

0 favourites 0 retweets

Fun synchronicity: datagenetics.com/blog/april3201… vs @mscroggs mscroggs.co.uk/blog/28 (and me in 2014 plus.google.com/+ChristianPerf…)

0 favourites 1 retweet

In reply to @henryseg

@henryseg but very likely it would happen once

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I alias grunt to 'makefiles-have-not-reached-our-poor-backwards-nation-yet'

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle I've had those as well. I have asperger's, and it took ages to get a diagnosis when I was a kid. Psychiatry is tricky!

1 favourite 0 retweets

There's a really nice diagram of the decision tree for "Guess Who?" in this @chalkdustmag post: chalkdustmagazine.com/blog/cracking-…

5 favourites 5 retweets

In reply to @christianp

@christianp (except it says "red chicks" instead of "red cheeks", @rafaelprietoc)

3 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith thanks!

1 favourite 0 retweets

In reply to @outofthenorm2

@outofthenorm2 I was wondering if you could write a short obit for the @aperiodical. You know more about Golomb than I do, I think

0 favourites 0 retweets

Please please tell me there's a gypsum mine near this hotel lorum.com

0 favourites 0 retweets

That's the second time this week I've encountered a date picker in a form with a hardcoded default year a decade in the past. WHY?!

0 favourites 0 retweets

Seeing Hilary Benn's face on the news has made me think: did our bombs on Syria make any difference to anything at all?

0 favourites 1 retweet

Is it OK to satirise a family member's profession on the front of their birthday card?

0 favourites 0 retweets

Pretty hugely misleading diagram on @BBCNews. I assume this is percentage of votes released?

1 favourite 2 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor grey bit is a circle section proportionate to number of votes released, party's colour fills proportion of that

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I don't know where the data's coming from. Do you?

0 favourites 0 retweets

I would love to know, in seats where leaflets claimed party X "can't win here", how often party X did in fact win there. @icecolbeveridge

3 favourites 1 retweet

This election's probably not a good one to look at that though, because so little has changed

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor yeah, I can't see a way of finding out. I see what you mean about the turnout, but a guess would be less misleading than this

0 favourites 0 retweets

Should've called it Boaty McBoatface twitter.com/Gladtidings6/s…

1 favourite 0 retweets

The news tells me Britain is having a "mini-heatwave". I can barely see three doors down my street.

2 favourites 0 retweets

I analysed the records of my primes game, and found some unexpected results! twitter.com/aperiodical/st…

4 favourites 3 retweets

In reply to @peterrowlett

@peterrowlett ehh... that would be an ecumenical matter

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett the majority might not agree with me, but I think of an urban legend as something that it doesn't matter if it's true or not

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett there's a line from Newton's apple, through Galois' duel, to the Grothendieck prime.

0 favourites 0 retweets

#neverforget the time I walked up and down the Gibraltar rock twice, in August heat, with food poisoning supersonicfeet.com/photograph/sun…

1 favourite 0 retweets

In reply to @charliesgames

@charliesgames no way has it been that long. I'm too scared to look up when I quit BlitzMax now.

0 favourites 0 retweets

In reply to @christianp

@christianp the best bit (apart from all the vom) was the Disney cruiser playing "when you wish upon a star" with its foghorn every 5 mins

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge you sure about that? youtube.com/watch?v=jlf1Wx…

0 favourites 1 retweet

Binoculars

1 favourite 0 retweets

The dealer I bought my car from is offering an "antibacterial aircon refresh". Most egregious use of antibacterial stuff yet?

2 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch but all it does is make the bacteria more resistant to medicine

0 favourites 0 retweets

In reply to @samholloway

@samholloway it would seem I'm too young to get that reference radiorewind.co.uk/radio1/1980s_j…

1 favourite 0 retweets

In reply to @DrBennison

@DrBennison huh?

0 favourites 0 retweets

In reply to @DrBennison

@DrBennison that's a bug, but what do you do to get it to come up?

0 favourites 0 retweets

Sorry guys, I made isthisprime.com/game only show numbers up to 9007199254740991 to placate @DrBennison's class. #ultrafinitism

1 favourite 1 retweet

In reply to @DrBennison

@DrBennison I'll leave it like it is, because NaN is really a failure state. Bonus question for your class: why 9007199254740991?

1 favourite 0 retweets

In reply to @stevenstrogatz

@stevenstrogatz if it had been a deferential equation the flight would have left on time

0 favourites 0 retweets

@somenxavier @j_lanier like so geogebra.org/m/3400229

0 favourites 0 retweets

In reply to @mathforge

@mathforge it's been there over a month, so not your class

0 favourites 0 retweets

In reply to @mathforge

@mathforge huh?

0 favourites 0 retweets

In reply to @mathforge

@mathforge ahh!

0 favourites 0 retweets

Sorcery! youtube.com/watch?v=QQ9gs-…

7 favourites 6 retweets

In reply to @robeastaway

@robeastaway drawings of the train at each stage?

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I can't think of a method that gets the wrong answer but otherwise merits a mark, though.

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean I thought you meant the legendary Newcastle take-away statics.192.com/estreet/origin…

0 favourites 0 retweets

In reply to @algoritmic

@algoritmic I made a web-based version christianp.github.io/regex-fractals/

0 favourites 0 retweets

Some good (if flaky) interactive bits in this Images des Maths piece on tilings images.math.cnrs.fr/Un-aller-retou…

0 favourites 0 retweets

We've got capital letters, why not capital numbers? That would let us write multiplication without a times symbol unambiguously

2 favourites 2 retweets

In reply to @robinhouston

@robinhouston close, but the symbols are the same shape - minuscule digits would (almost always) have different shapes

0 favourites 0 retweets

ARE YOU EVEN KIDDING IBS bbc.co.uk/news/uk-politi…

0 favourites 0 retweets

In reply to @stecks

@stecks I MUST KNOW MORE

0 favourites 0 retweets

In reply to @stecks

@stecks my first idea was to use arabic numerals for lowercase, since they're more curly anyway

0 favourites 0 retweets

This is fun: generate a mathematical identity that's sort of true lexada.com/demos/naive-ma…
Like an automated pseudo-Ramanujan

0 favourites 0 retweets

Beginning to think that if IBS had been on the Titanic, he'd be drilling extra holes in the hull to keep it afloat twitter.com/christianp/sta…

1 favourite 0 retweets

In reply to @mathhombre

@mathhombre I got the year really quickly by a heuristic method. Managed to convince myself it's unique with geometry. Very good question!

0 favourites 1 retweet

In reply to @christianp

@christianp @mathhombre no, not unique, stupid CP!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ?!

0 favourites 0 retweets

In reply to @christianp

@christianp @mathhombre ahh, unique because Giuseppe was born in July. Oops.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge crikey. Thanks.

0 favourites 0 retweets

In reply to @ChrisMaslanka

@ChrisMaslanka it was the July birthday that I hadn't spotted

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb my job is to write questions for all our undergrad courses. I'm now a very strong undergrad, at the expense of research skills

0 favourites 0 retweets

I scored 530 in Hexjack! It's a pretty interesting 2048-ish game. tinyurl.com/hxjck

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK my wife is nowhere near as into eurovision as you or I are, so I might have it on at work tomorrow :(

0 favourites 0 retweets

"So, what do you do in IS? Beheadings?"
"No, I rewrote the maths curriculum. We write z instead of +".
"Barbarian!" twitter.com/AVBorovik/stat…

1 favourite 4 retweets

Is Florentin Smarandache like the guru of unorthodox maths? He keeps popping up. books.google.co.uk/books?hl=en&lr…

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo done! Last year there was a sneaky page to spy on offered talks. Was that not public?

0 favourites 0 retweets

1000 points! I get too excited when I get the Hexjack thingies tinyurl.com/hxjck

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ColinTheMathmo it's worth thinking about: if you type '6/2*(1+2)' in a computer, it has to return an answer

0 favourites 0 retweets

Personally, I'd hold the opening event in the lab I'm opening

0 favourites 0 retweets

I think this mallard's been stood up. Now I'm constructing a whole "nice guy mallard" narrative.

0 favourites 0 retweets

In reply to @mayr2

@mayr2 I believe that new rooms and buildings begin their lives clopen.

0 favourites 0 retweets

Google Music seems intent on playing me all that twee music I was into in the early 2000s. There's just so much of it!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo Q: What's the actual most annoying thing in email?

A: signatures. They make top-posting the only rational response

1 favourite 0 retweets

In reply to @libraryncl

@nclroblib do the Marjorie Robinson rooms have power? I've heard most of the campus is without, so I thought I'd set myself up over there

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib I'm now ensconced in "the living room". Apart from all the scarily young folk, it's ideal!

1 favourite 0 retweets

Can't believe I've had to say this twice today: 32! is enormous

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge compared to the number of times I can call this function in a minute

0 favourites 0 retweets

I'm catching up on the 2nd Eurovision semifinal. Britons: I think we need to enjoy Eurovision as much as the Swedes do.

1 favourite 0 retweets

Though I'll never quite come to peace with the fact we're in the timeline where Global.Kryner didn't make it out of the semifinals in 2005

0 favourites 0 retweets

?!?!?!?! twitter.com/WillKirkby/sta…

0 favourites 0 retweets

Vote no. 1 Slovenia's boobs! #Eurovision

0 favourites 0 retweets

What sick wizardry brought this Bulgarian traffic cone to life and made it sing?

1 favourite 0 retweets

I don't care if everyone did their eurovision hot takes last night. I'm having a lovely time in my jammies.

0 favourites 0 retweets

The dog has a pathological hatred of orange. So it's unfortunate that our next door neighbour gets a Sainsbury's delivery every Wednesday

0 favourites 0 retweets

Just picked this book off my bookshelf. How have I never noticed the author's amazing initials before?

6 favourites 1 retweet

In reply to @ChrisMaslanka

@ChrisMaslanka it's full of gothic letters. A convention that didn't catch on

0 favourites 1 retweet

In reply to @JosephIanHoult

@JosephIanHoult 64 twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @JosephIanHoult

@JosephIanHoult 40 is pretty good!

0 favourites 0 retweets

In reply to @kirkpatricke

@kirkpatricke I saw some of those in Wilko a couple of days ago. Wasn't sure how that affected their hipsteriness

0 favourites 0 retweets

Wow, Let's Encrypt is really really easy to set up with certbot certbot.eff.org

2 favourites 0 retweets

Just spent half an hour doing umpteen takes of a screencast until I noticed the mic was picking up the construction noise upstairs

0 favourites 0 retweets

In reply to @stecks

@stecks dyadic carrot fields arxiv.org/abs/1003.3947

1 favourite 0 retweets

I was just weighing up an algorithm and got to "10 of those files will fit on a floppy disk". How long has that knowledge been dormant?

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes, I and a few others have seen that on aperiodical.com with the latest Firefox

1 favourite 0 retweets

tompride.wordpress.com/2016/05/17/who…

0 favourites 0 retweets

Weird that "action short of a strike" is keeping to your contracted hours. That's what I do anyway. Am I perpetually making a stand?

0 favourites 2 retweets

In reply to @mathhombre

@mathhombre no, only youtube.com/watch?v=c0Ndwz…

1 favourite 1 retweet

In reply to @jjsanderson

@jjsanderson try overleaf.com

1 favourite 0 retweets

In reply to @christianp

@jjsanderson to expand: overleaf has a rich text editor, but also lets you interact with the doc as a git repository

1 favourite 0 retweets

It's like that chocolate thing but even more sneaky! twitter.com/AndreaHawksley…

2 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge Get you, seeming to work out e^(-1/8) in your head.

0 favourites 0 retweets

When did this method of embedding @geogebra apps appear? I've torn my hair out trying to communicate with geogebra! geogebra.org/manual/en/Refe…

2 favourites 1 retweet

Current status: loading an absolutely enormous MySQL dump. #poopinsql

0 favourites 0 retweets

In reply to @mathhombre

@mathhombre he had a hit in the 80s with "Raptical Illusion"

0 favourites 1 retweet

In reply to @MartinMagni

@MartinMagni yikes, that was unkind :(

1 favourite 0 retweets

Watching Shaolin Soccer for the first time. So far, I feel like Kung Fu Hustle is basically the same film but done better

2 favourites 0 retweets

In reply to @BikeMath

@BikeMath yes, that's what I meant: they did everything a lot better the second time

0 favourites 0 retweets

Is there an award for valiantly continuing a political interview while your baby protests? Give it to the woman just on @BBCRadio4

1 favourite 0 retweets

And there could be one in Pretoria, SA in June if anyone wants to meet me (+@Pyfagorass) twitter.com/MathsJam/statu…

0 favourites 1 retweet

Sick of Mendeley becoming harder to use, I've set up my own site to manage my Interesting Esoterica refs collection read.somethingorotherwhatever.com

5 favourites 2 retweets

I'd had a sneaking suspicion this was happening. Ugh. twitter.com/FiveThirtyEigh…

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor but they show that men give low ratings to shows watched mainly by women much more often than the other way round

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor so if everyone rated everything, it'd maybe balance out, but that's not the case

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor ok, it's a rubbish headline

0 favourites 0 retweets

Wow, this is useful: when you start creating a file named "LICENSE" in a github repo, it offers templates for common licences.

1 favourite 0 retweets

@Anders2809 which? The 90p coin or the £90 note?

0 favourites 0 retweets

@Anders2809 I was excited, but as far as I can see London Mint (not the Royal mint) is selling a coin for 90p + p&p, not a real 90p coin

0 favourites 0 retweets

@Anders2809 thanks for telling me! Would've been beautiful if true

0 favourites 0 retweets

I love Newcastle!

2 favourites 0 retweets

Currently weighing up what hashtags the dog would use if she had instagram. #furgoals #walk #blessed

2 favourites 0 retweets

In reply to @TraineeGeek

@TraineeGeek all of them: 1/2 cocker spaniel, 1/4 poodle, 1/4 bichon frisé

0 favourites 0 retweets

Featuring such delights as "Orange peels and Fresnel integrals", and "How to recognise a 4-ball when you see one" twitter.com/aperiodical/st…

1 favourite 0 retweets

omg I'd forgotten about what might be my favourite paper title of all time: "Robust Soldier Crab Ball Gate" read.somethingorotherwhatever.com/entry/Gunji2011

0 favourites 0 retweets

Oops. #sandwichhernia

0 favourites 0 retweets

@NoahNoahjacob7 I don't know, the system in the UK is that you pick your degree subject before you get to university. What's troubling you?

0 favourites 0 retweets

@NoahNoahjacob7 ah! Everyone gets it. Everyone. Easy to slip into selection bias: you don't often see others' struggles. Stick with it.

0 favourites 0 retweets

In reply to @christianp

@NoahNoahjacob7 stay in maths as long as you want to know the answers. There's no such thing as 'not good enough' to do it.

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc I'm so glad that whoever's in charge of the nulcear arsenal can resist the temptation to switch to the framework of the week

3 favourites 2 retweets

Theorem:
1 is the most chill number.
Proof:
No matter how excited you get about it, it's still 1.
Example:
1!!!!!!!!!!!!!!!!
Still 1.

13 favourites 15 retweets

In reply to @Erhune

@Erhune @jgrahamc FIFO, surely? How often do you do your laundry?

0 favourites 0 retweets

In reply to @neildoeswhat

@MrNeilD it's a wannabe

1 favourite 0 retweets

Examples of common false beliefs in mathematics twitter.com/svat/status/73…

0 favourites 0 retweets

In reply to @CultureMath

@CultureMath pas de tout! Merci pour le lien

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo a further diversion: what's the smallest ambiguous payment?

0 favourites 0 retweets

The hipsters are coming!

2 favourites 0 retweets

In reply to @JimPropp

@JimPropp I'm listening to the first one, and enjoying it. I'd listen to more.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ColinTheMathmo yeah, for me, -3 could mean "take away 3 whole units"

0 favourites 0 retweets

Everyone tell Jim he should do a podcast of his blog twitter.com/JimPropp/statu…

1 favourite 1 retweet

In reply to @philipcball

@philipcball twitter gave me a good juxtaposition of pictures next to that

2 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt Giffgaff have put out some truly grating copy lately. This really takes the biscuit.

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt even worse for me as a northerner because they use so much estuary English

0 favourites 0 retweets

#defaultmale

1 favourite 0 retweets

Turns out that all I need to be able to tackle the @aperiodical news queue is three days off work. Simple!

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @stecks them's fightin' words

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo (et al.) my python reckons 98 paths ending at origin, 210 ending anywhere gist.github.com/christianp/db5…

0 favourites 0 retweets

In reply to @christianp

@christianp @ColinTheMathmo that's very much the non-elegant way, but now we know what numbers to aim for

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I've put a comment on that, asking how it works.

0 favourites 0 retweets

In reply to @stecks

@stecks this?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge back of the class, Beveridge

0 favourites 0 retweets

In reply to @mathygirl13

@mathygirl13 What about negative x?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge spotted my mistake - I looked for paths which visit all 4 points, but should've looked for all 4 edges

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow on YouTube, you can use your finger to pan around

0 favourites 0 retweets

What's that coming over the hill? Is it a toroid?

2 favourites 0 retweets

Today in completely sensible numbering schemes: 6,7,2,3,4

2 favourites 0 retweets

In reply to @Pecnut

@Pecnut ooh, I'll try to remember that

0 favourites 0 retweets

In reply to @samholloway

@samholloway the madness continued round the whole block. We talked to one resident; hers was beneath her flat, but nobody else was so lucky

0 favourites 0 retweets

In reply to @bourne_2_learn

@IntMath @MathCounterexam that link is a weird fake CBS site that shows phishing ads

0 favourites 0 retweets

In reply to @chris_fairless

@chris_fairless 'significant' is the magic word that means you've done science

1 favourite 0 retweets

CP fact: I'm a real-life giant. Banana for scale. (I love it when Helen brings fruit home from nursery)

1 favourite 0 retweets

Last chance to give a talk at our conference on e-asssessment in mathematical subjects. twitter.com/EAMSConf/statu…

0 favourites 2 retweets

The set of people who can disprove this is smaller than the set of people who can't. twitter.com/efrataitel/sta…

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths currently at 123,512. That makes me feel uneasy.

0 favourites 0 retweets

In reply to @chris_fairless

@chris_fairless you also need to work out P(small banana)

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson ooh, you could do something with the compass

0 favourites 0 retweets

I made this thing codepen.io/christianp/ful…

4 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Notchulus Rift

0 favourites 0 retweets

June

Suddenly realised I'm going to be in Africa on the referendum day. Just got time to apply for a postal vote. 😰

0 favourites 0 retweets

In reply to @numberphile

@numberphile the what?

0 favourites 0 retweets

{plant, pot}^2

8 favourites 4 retweets

Customising the wordpress theme we bought for our conference. Rapidly increasing my understanding of the concept of "technical debt"

2 favourites 0 retweets

(On the theme developer's part, not mine)

0 favourites 0 retweets

Pythagoras' full name was Ian Spyridon-Pythagoras-Fitzwilliamson. That's right: he was Pythagorean-triple-barrelled.

2 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag @Pecnut @mscroggs you didn't remark on the number 0.68 turning up twice for different reasons. What a coincidence!

0 favourites 0 retweets

In reply to @Quendus

@Quendus at first I was going to do letter counts, but I thought syllables would be better

0 favourites 0 retweets

In reply to @Quendus

@Quendus Zebedi-Popolito-Abacadabra

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight confused by the presentation of the cost breakdown in a bar chart

1 favourite 0 retweets

In reply to @mathhombre

@mathhombre max(letters - vowels) = "electroencephalographic","straightforwardness"
max(letters/vowels) = "schmaltz","schnapps","strength"

0 favourites 0 retweets

In reply to @mathhombre

@mathhombre nothing better than "eighths" for difference; tons beat on ratio, including "angsts","alms","ankhs", "etch"

0 favourites 1 retweet

In reply to @tombutton

@tombutton @peterrowlett cool! I think # of ways of arranging to make a triangle, up to rotation and reflection, is oeis.org/A124302

0 favourites 1 retweet

@ABnry @mathhombre I agree

0 favourites 0 retweets

Finalising the social strategy for my new line of bawdy artisanal croutons, 'Minced Loaves'

0 favourites 0 retweets

In reply to @timchartier

@timchartier or, build some roundabouts?

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @Samuel_Hansen and Sam should join our Slack channel

0 favourites 0 retweets

I've spent some of today playing about with @elmlang. It's quite nice! I've made a stupid quiz framework: github.com/christianp/elm…

1 favourite 0 retweets

Nice start to Monday: filed 3 easy-to-fix issues on GitHub, closed them all in 20 minutes.

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @singinghedgehog I think it's just a 4 thing; decent/old clocks also say IIII instead of IV.

1 favourite 0 retweets

In reply to @stecks

@stecks Dropbox is not a backup service. It has lots of known problems with files going missing

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @evelynjlamb @JSEllenberg forget gun crime, the handling of credit cards in restaurants was the scariest part of my US holiday

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @standupmaths @JSEllenberg because it's taken away at all, and you just write the tip in

0 favourites 0 retweets

Building someone's node/grunt project. What a mess that is - so many packages!

0 favourites 0 retweets

Hey, I've been tweeting some pretty tedious Computer Dude tweets recently. Oh well!

0 favourites 0 retweets

Now verifiably an enigma. twitter.com/TweetsofCushin…

1 favourite 0 retweets

"we'll warn you, it's wintry here so dress sensibly, " the south Africans said. To a geordie, this is scorching!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett that's pretty much verbatim what they told me

0 favourites 0 retweets

The twitter app has changed again! All I want to know is, which bits won't work for @ColinTheMathmo this time?

3 favourites 0 retweets

Irony: took me a while to find the link to papers belonging to this usability journal uxpa.org/publication/jo…

1 favourite 0 retweets

In reply to @HilariousCow

@HilariousCow I've noticed sainsbury's eggs doing weird things lately too. Is this a portent of Zuul?

1 favourite 0 retweets

In reply to @Plattsc

@Plattsc @Zachlaw2 congratulations!

0 favourites 0 retweets

In reply to @profhelenwilson

@helenjbradley @ColinTheMathmo you should see the stuff we get at the @aperiodical!

2 favourites 1 retweet

No way! twitter.com/jeremycorbyn/s…

1 favourite 1 retweet

In reply to @HilariousCow

@HilariousCow an example that's relevant to you is orthogonal projection

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow why do you ask?

0 favourites 0 retweets

In reply to @NCLMathsStats

@NCLMathsStats this is Newcastle. We don't do hats.

0 favourites 0 retweets

Today: to think I once thought IE9 was an improvement! "It's not a bug, it's a missing feature"

0 favourites 0 retweets

In reply to @brittneybean

@brittneybean what proportion of that is dedicated to making sure you don't poison thousands of people?

0 favourites 0 retweets

SAVE the cost of expensive helium by filling your balloons with normal air and holding your party underwater. #toptip

0 favourites 1 retweet

I picked my new favourite number uniformly from ℝ. You probably haven't heard of it. #measuretheoryhipster

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel that is interesting. Could also be rephrased as "constructed by +, * and binary repdigits"

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith crikey!

0 favourites 0 retweets

Mind-bending game based on Thompson's group. And there's a colour-blind friendly setting! twitter.com/Ringiana/statu…

3 favourites 4 retweets

It's 2016, and you can buy a floating dodecahedral plant pot. thisiscolossal.com/2016/06/new-ma…

1 favourite 0 retweets

"Just use github's web interface", I thought, "it's supposed to be easier than the command line". #mare

0 favourites 0 retweets

Wow that's bad reporting - if you can't do "easy sums", you likely can't feed yourself either, never mind sex twitter.com/mikeNatNumerac…

0 favourites 0 retweets

This is really pretty: a scanline render of a Julia fractal, like the cover of that Joy Division album codepen.io/KrofDrakula/pe…

2 favourites 0 retweets

What's this remarkably good puzzler doing hiding in CodePen? codepen.io/desandro/full/…

0 favourites 1 retweet

In reply to @jamesgrime

@jamesgrime cooool! Please say it's got one of these inside en.wikipedia.org/wiki/Lehmer_si…

0 favourites 0 retweets

Now an officer of the order of Australia, so when she says "let x = ...", you have to agree. Makes proofs easier. twitter.com/nomad_penguin/…

4 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime That is also cool. PS 201606137 is the smallest prime prefixed with today's date

0 favourites 0 retweets

201606137 is the smallest prime prefixed with today's date. Tomorrow's is 2016061417 - needs another digit! isthisprime.com/2016061417

1 favourite 1 retweet

In reply to @HilariousCow

@HilariousCow reminiscent of classic HL mod Front Line Force

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow it wasn't tied to objectives, I don't think, just to proximity to teammates. Took a few revisions to get right, but worked

0 favourites 0 retweets

In reply to @christianp

@christianp @HilariousCow and wasn't permanent - you'd lose the buff if you moved away

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow have a look at FLF - if I remember right, there were delays built in so you can't suddenly overwhelm with numbers

0 favourites 0 retweets

"Hi, I'd like to install Windows 10 on your professional network" twitter.com/LewieP/status/…

0 favourites 0 retweets

Schrödinger's city: what happens in Vegas stays in Vegas, until observed

2 favourites 0 retweets

Challenge: find the next date which prefixes no prime number with fewer than 11 digits twitter.com/stecks/status/…

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Grexit, Brexit, ... - will Croatia be the next to flirt with leaving the EU, or France? Euroskepticism matches the regex /([A-Z]r)exit/

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Proof by faith in own abilities twitter.com/poveryant/stat…

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In reply to @poveryant

@poveryant so what's the smallest prime starting 20160915?

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In reply to @aperfect

@aperfect one for @animalcog

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In reply to @icecolbeveridge

@icecolbeveridge @mathsjem sneaky because you need to think about rotating cuboids? What does the marking scheme say? 2 marks seems cheap

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In reply to @mathsjem

@mathsjem @icecolbeveridge that's not very fair. And never mind not saying "how many *of these* cuboids fit"

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I have a very bad reaction to applied maths, so I carry a parallelepi-pen with me at all times

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What3Words is in the news being stupid again, so I made a thing that converts lat/long to emoji. I'm at work: christianp.github.io/emojiordinates…📏💖😈😄

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In reply to @christianp

@christianp ... except twitter doesn't like emoji in URLs, of course. Oh well! An hour wasted!

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And oh no! Someone's already done it better! what3emojis.com/map/#12/51.470…

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Anyway, if you're going to do something this stupid, Plus+Codes is a much better solution plus.codes/9C6WX9HM+4J

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In reply to @mike_geogebra

@mike_geogebra with deployggb.js, is there a way to detect when the applet has finished the initial construction?

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In reply to @elinoroberts

@elinoroberts more of an order than an observation?

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The corridor which was a straight line now has a T junction at one end. Something involving partition walls has happened.

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In reply to @elinoroberts

@elinoroberts demonstrate the caloric content of milk with FIRE?

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In reply to @mike_geogebra

@mike_geogebra how do I access that from outside geogebra? I want to be able to use any existing applet without modification

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In reply to @mike_geogebra

@mike_geogebra now I have lots more questions about the Javascript API. Where's the right place to email?

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In reply to @mike_geogebra

@mike_geogebra I bounced off that earlier. Do I just post in "English"?

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In reply to @stecks

@stecks lunge-o-meter

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That @geogebra can do what it does without throwing a mathematical tantrum every two minutes is one of the marvels of our time

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I love a good visual proof circlesandtrianglesblog.wordpress.com/2016/06/06/thr… (via @CarnivalOfMath)

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In reply to @pkrautz

@pkrautz ah! After nobody responded to that I assumed I'd (a) got it all wrong, and (b) been massively boring. Thanks!

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Maths: knowing that I can definitely pay £8 for this haircut because I have two notes in my wallet, without seeing their values

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In reply to @jamestanton

@jamestanton do you mean when the LHS isn't a repdigit?

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In reply to @christianp

@christianp @jamestanton if so, there are loads: gist.github.com/christianp/a35…

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In reply to @christianp

@christianp @jamestanton or, on reading it properly: I didn't find any in the first 10,000 palindromes raised to palindromes in [11..101]

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I can see enough to recognise them as Bank of England notes twitter.com/ChrisMaslanka/…

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In reply to @jjaron

@jjaron and is it escaping from Pandora's box?

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"you say lay-tek / I say, lah-tek / let's typeset the whole thing beautifully"

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In reply to @stevieb

@stevieb no, I'm not a barbarian

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In reply to @monsoon0

@monsoon0 and horrendous fraction orthography - from line 4 onwards, looks like (4-9/2) instead of 4-(9/2)

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In reply to @Pecnut

@Pecnut font fans are fond of fans-ferif fonts?

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In reply to @stecks

@stecks @aperiodical I was disappointed: my printer's run out of ink

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This leaflet makes a lot of good points.

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In reply to @mathforge

@mathforge it's a good'n. I wonder why I see so many papers on fuzzy maths from the middle east.

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In reply to @C_J_Smith

@C_J_Smith it's discretised? You deviant!

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In reply to @samholloway

@samholloway I met a friend in town today. She's lived abroad for a few years - I had to reassure her it's not usually this miserable

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In reply to @robinhouston

@robinhouston some unholy kenwood mixer attachment?

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Thanks again

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Eugh. All the extra-legroom seats for my 10-hour flight tomorrow have been taken. #tallproblems

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Ahh, the space-filling curve that is newcastle airport duty-free. #highfractaldimension #lowprices

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In reply to @icecolbeveridge

@icecolbeveridge does winning a match by default entail winning each set? Could win without setting foot between the tramlines

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In reply to @icecolbeveridge

@icecolbeveridge what if you've already won two sets, and your opponent leaves at the start of the third?

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Welp, South African immigration is pretty relaxed. Didn't ask a single question!

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Looks like I won't be doing any MathsJam in Pretoria tonight because of Angry People :(

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In reply to @Pyfagorass

@Pyfagorass I'm pretty knackered, as well, so i think I'll be going to sleep straight after dinner

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Some lovely arty maths in the education innovation department at University of Pretoria

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Whoah, quake is 20 years old today.

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In reply to @helenarney

@helenarney is it a penguin or a penguout? Or a no-go of flip-flopper?

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Just landed back in the UK. Oh goddddddddddd

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Yep, that's pretty much how I feel twitter.com/JanvierUK/stat…

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Who's up for opening a sweepstakes on "most ridiculous prediction to come true in the next decade"? I'll start with Battle of Gibraltar mk 2

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Coming in out of left field, it's your man Beveridge twitter.com/icecolbeveridg…

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Found on a PC at 10 Downing Street this afternoon.

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In reply to @standupmaths

@standupmaths I can heartily recommend @chris_fairless

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Someone at this garden centre has gone to a lot of effort for an "800 pound gorilla" joke

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Yiiiiiiiikes twitter.com/DavidOlusoga/s…

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This is the most majestic photograph I've ever seen twitter.com/dog_rates/stat…

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Bengali has a "numerator one less than the denominator" symbol, ৸ compart.com/en/unicode/U+0…

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Big list of @NclNumbas things to do today. These are just the easy fixes; lots more on the wishlist!

1 favourite 1 retweet

Valiantly resisting getting nerdsniped by this puzzle game with no right answer: Sumplosion labs.counterwave.com/sumplosion/

1 favourite 1 retweet

In reply to @MouldS

@MouldS OK, now find a gas that pours itself. I'll let you do plasma last.

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That was thoroughly enjoyable @MEIMaths @sigmahubs.

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What does "parallel to the horizon" mean? twitter.com/qikipedia/stat…

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In reply to @JanvierUK

@JanvierUK the best is the least worst

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In reply to @aperfect

@aperfect is this on a mac? It's ctrl-backspace on Windows, unless I've misunderstood

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Some people just want to watch the world boris

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July

In reply to @C_J_Smith

@C_J_Smith that's finite time blow-up, isn't it? You're a genius!

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HURRAH: It gladdens me that in this time of Brexit and constitutional crisis, theweekly.co.uk is still online.

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In reply to @jjsanderson

@jjsanderson is that to become a member of the co-op?

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@efrataitel cor! Well done her

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In reply to @jjsanderson

@jjsanderson ... waitrose?

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In reply to @jjsanderson

@jjsanderson this is like The Middle Class Price is Right. John Lewis?

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Sad Man Stories: watched a man down a bottle of wine, and another man just came into the vet's with his dead cat, suspecting poisoning

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In reply to @alisonkiddle

@ajk_44 brb, registering artisanalcoinflips.com

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I've fiddled with my 30 second challenge a bit; the layout is better on phones and easy mode is more kid-friendly christianp.github.io/30secondchalle…

4 favourites 3 retweets

Oooooh, I love these tiny teeny seaside dioramas! folksy.com/shops/Stickyou…

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In reply to @icecolbeveridge

@icecolbeveridge that is a very attractive cover

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#feature twitter.com/GhostMutt/stat…

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Is it just me or is this cloud unnaturally square?

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In reply to @chalkdustmag

@chalkdustmag @mattheas57 tennis fans and maths fans might enjoy this state diagram of a full tennis match I made: christianp.github.io/tennis-graph/

2 favourites 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor sad for me that I find it very hard to see red on top of black

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In reply to @Andrew_Taylor

@Andrew_Taylor it doesn't leap out at me

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In reply to @alisonkiddle

@ajk_44 thankfully, these days very few children have fruit in their lunchboxes.

2 favourites 1 retweet

In reply to @robeastaway

@robeastaway don't mention the football! I did once but I think I got away with it

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Westminster youtube.com/watch?v=XqPC08…

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In reply to @FryRsquared

@FryRsquared "predict" is a strong word for something that was largely settled 150 years ago

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In reply to @FryRsquared

@FryRsquared "remake" is one character shorter and inaccurate in a different but much more exciting way

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TFW when your summer intern has written loads of really good material but used "it's" instead of "its" throughout. 😞

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Whoah, very nearly up to half a million goes of the is this prime game! isthisprime.com/game/record.php.

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In reply to @benjamintormey

@BenTormey Bootleg YouTube Video Guy

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Definitely should've bought my holiday money before the referendum. Currently €1.17 to the pound 😩

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In reply to @irks5

@irks5 Ireland, at the start of August. Now I have to weigh up if it'll improve or continue falling for the next month

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Fold a piece of paper N times, then cut off the corners. How many holes when you unfold it? Nice new OEIS sequence oeis.org/A274230

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Woman angrily giving orders over the phone in an accent from the depths of Wales, like a character from the grimdark Fireman Sam reboot

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In reply to @standupmaths

@standupmaths you've seen the one at @MoMath1, right?

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In reply to @JimPropp

@JimPropp yes, couldn't fit that in the tweet

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In reply to @JimPropp

@JimPropp I saw your post on math-fun. Will think about it!

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In reply to @bit_player

@bit_player that's a(4), isn't it? Anyway, I just about got the next iteration: checkmyworking.com/misc/folded-ho…

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Playing GeoGuessr, the first place I got was exactly the spot I went on holiday last winter. Bonza!

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In reply to @JSEllenberg

@JSEllenberg of all the things that have happened in 2016, boycotting a symmetry group is the one I expected least

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In reply to @robeastaway

@robeastaway your solution reminds me of that puzzle with boarding a plane. Do you know it?

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In reply to @robeastaway

@robeastaway first passenger sits at random, subsequent passengers sit at their own seat or, if occupied, pick at random.

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In reply to @christianp

@robeastaway what's the probability the last passenger sits in their own seat?

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In reply to @FOTSN

@FOTSN @stecks @ColinTheMathmo @sciencemuseum but all of my most interesting retro calculators are at home! O misery, O woe

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Eating some absolutely horrendous crisps because it's too early to eat my sandwich. So hungry.

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Was complimented on the clarity and straightforwardness of my installation instructions for @NclNumbas today. 👌

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In reply to @mathsjem

@mathsjem and you can measure the safety of roads in micromorts-per-smoot en.wikipedia.org/wiki/Smoot

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Another day, another opportunity to look up the digits of π at three.onefouronefivenine.com

2 favourites 1 retweet

How do I efficiently and randomly shuffle 3 copies of each of n things into k piles so that no pile contains the same thing twice?

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In reply to @Pyfagorass

@Pyfagorass go on...

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In reply to @Pyfagorass

@Pyfagorass or you could use mathb.in

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Grow feet big enough to fit a water bottle in your shoe or go home

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In reply to @jgrahamc

@jgrahamc actually, there's a lot of leaning to be had in a walled garden. (sorry)

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In reply to @aperiodical

@aperiodical that was a real chin-stroker!

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So nice! twitter.com/BeadyMagpie/st…

2 favourites 2 retweets

I've started something. #shoebottle twitter.com/peterrowlett/s…

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In reply to @MrHonner

@MrHonner so the student needs to learn how to find things on the web, as well as how to make a website

3 favourites 0 retweets

In reply to @aaclarke4

@aaclarke4 can #tweetprinter do pictures? Here's a snowman painting a vibrant pastoral scene:

8A

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In reply to @Andrew_Taylor

@Andrew_Taylor I once convinced my best friend that my middle name was "Notso". (this was pre-double-barrelling)

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I've realised @elmlang is good for making simple state machines, like this puzzlebomb puzzle puzzlebomb.co.uk/interactive/pu…, but not much else

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Desperately exercising rights before May becomes PM. First joining some trade unions, then into town to assemble peacefully with friends

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I already can't send an email without someone subordinate to May reading it... twitter.com/Bishnavitch/st…

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Getting in some frantic last-minute satire.

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Theory: Vote Leave was run by a secret cabal of anarchists. Their only aim: an end to all government. Massive success.

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Ahhhhhh this is the version of Inkscape with the knacked wallpaper groups, isn't it? Bum.

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Some rude plumber has put a pair of pipes in front of @Gelada's lovely art!

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12:46! Time to dial Barbados

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While computing something else, came across this outstandingly arbitrary sequence with a very nice index: oeis.org/A222221

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Oh good grief, A222222 is the same idea. It deserves better! oeis.org/A222222

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In reply to @robinhouston

@robinhouston is this on wordpress.com?

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In reply to @robinhouston

@robinhouston and you're thinking of moving to github pages or something like that? If you have your own PHP, WP with plugins would work

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Glorious.

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Just got a text from my mum saying exactly this. Thankfully, she's not a member. twitter.com/aPaulTaylor/st…

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In reply to @ColinTheMathmo

@ColinTheMathmo integer sequences are the most fruitful topic for me - my window into just about every other area

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In reply to @Thalesdisciple

@Thalesdisciple radians are easier to use when you don't know what the angle actually is - the formulas are neater

1 favourite 0 retweets

In reply to @NCLMathsStats

@NCLMathsStats I know we don't have mortar boards to throw in the air, but this idea seems even more dangerous

1 favourite 0 retweets

In reply to @samholloway

@samholloway NEWCASTLE: Lawson-Perfect calls for more tweets that read like press releases at first glance

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In reply to @samholloway

@samholloway I'll have to touch base on that and call a raincheck going forward

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So, Newcastle people: how did they get away with building Eldon Square and not putting any public toilets in it?

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I spent my day off yesterday making an interactive version of Puzzlebomb 54: puzzlebomb.co.uk/interactive/pu… (it was complicated!)

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In reply to @JimPropp

@JimPropp Follow Underwood Dudley's advice web.mst.edu/~lmhall/WhatTo…

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There are six letters in Morse code which, when interpreted as regexes, match only themselves: J, Y, O, T, M, Q.

4 favourites 0 retweets

In reply to @robotmaths

@AdamCreen @samholloway but these toilets all become unavailable after closing time

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In reply to @robotmaths

@AdamCreen @samholloway I wasn't seeking loo advice, I was lamenting the sparsity of public toilets

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In reply to @robotmaths

@AdamCreen @samholloway I'm fairly sure I can remember some pencils. Maybe they were in photos taken before I was born?

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In reply to @divbyzero

@divbyzero that would probably be William Shanks

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In reply to @divbyzero

@divbyzero or actually, more likely Shanks' inspiration, William Rutherford, who published and edited quite a few books

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In reply to @divbyzero

@divbyzero @rmathematicus I've never heard it either, but if it's anyone it might be Rutherford

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In reply to @divbyzero

@divbyzero that's my favourite fact of 2016

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I know how 28 Days Later started: someone tried to put a bed together in a room only 10cm larger than the bed itself in each dimension

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In reply to @mayr2

@mayr2 left as an exercise for the reader

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In reply to @aperfect

@aperfect ideal would be a bit of machine learning on an individual session, narrowing down what I want using bayesian inference

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Bus Wars 2016 twitter.com/GreenpeaceUK/s…

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In reply to @IrishMathsFacts

@IrishMathsFacts I wonder how you pronounce "0'hEigeartaigh, Michaél" - "Michael Nought-Haggerty", maybe?

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Weren't you doing something related to this recently, @ajk_44 ? twitter.com/algoritmic/sta…

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In reply to @DavidKButlerUoA

@DavidKButlerUoA from Britain, I laugh at you. That's a decent day's weather here!

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Everyone in Newcastle, right now: twitter.com/nclroblib/stat…

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In reply to @libraryncl

@nclroblib I have a vague memory that you produced a Geordie phrasebook for freshers. Is there a physical version?

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In reply to @libraryncl

@nclroblib we're thinking of putting one in a conference goody-bag. If we make one, it could be a resource for other colleagues?

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In reply to @robeastaway

@robeastaway an incursion over the border into cheating: find another card with a 3 on it, and move it to the bottom of the right column

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In reply to @drvinceknight

@drvinceknight echoes of the laws of robotics. What's 3? "Please format your data nicely (unless it breaks 1 or 2)"?

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In reply to @MouldS

@MouldS @helenarney #spoilers

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Current status: writing mangled French to check I've caught all the localisable strings in this software

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My idiomatic French isn't great anyway, and there's all sort of jargon that goes with UI as well. Bof!

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Crikey, Wogan did well to bounce back from that and launch a broadcasting career in the 20th century. twitter.com/erik_kwakkel/s…

1 favourite 0 retweets

In reply to @HilariousCow

@HilariousCow #notallignoramuses

1 favourite 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @peterrowlett girls who mean Brexit means Brexit like boys who mean Brexit means Brexit

2 favourites 0 retweets

I have a question about a stat Jeremy Corbyn just used in PMQs plus.google.com/+ChristianPerf…

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In reply to @jgrahamc

@jgrahamc you mean you haven't memorised oeis.org/A075771 ?!

1 favourite 0 retweets

Googling to find out if "barney" meaning "fight" is a Geordie word, I'm now watching videos of a purple dinosaur whaling on all and sundry

3 favourites 0 retweets

In reply to @FOTSN

@FOTSN I listened for too long and now it's lost all meaning again

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In reply to @libraryncl

@nclroblib So I've made a little geordie phrases booklet based on your online guide. Is there an email address I can send it to you?

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New integer sequence! Discovered while preparing a talk about integer sequences! Smallest k such that k! > 2^n. oeis.org/A269225

2 favourites 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo yep, email me

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In reply to @ColinTheMathmo

@ColinTheMathmo yep

0 favourites 0 retweets

In reply to @irks5

@irks5 noun

1 favourite 0 retweets

Ice cream zero is my favourite zero twitter.com/DavidKButlerUo…

2 favourites 0 retweets

A book of number and word puzzles, featuring 631 of the weakest puns you've ever seen, in the @PublicDomainRev publicdomainreview.org/collections/gu…

2 favourites 0 retweets

In reply to @Lucy_Worsley

@Lucy_Worsley note the green sleeves.

1 favourite 0 retweets

Someone in IT services is having a bad day: even the system status page is unavailable 😖

1 favourite 0 retweets

Oof, someone's having a REALLY bad day.

1 favourite 0 retweets

In reply to @GhostMutt

@GhostMutt yeeeeikes

0 favourites 0 retweets

In reply to @aperfect

@aperfect they're underselling "with heritage stretching back 2,000 years" - why not go to 3,000 and include the Greek alphabet?

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In reply to @GhostMutt

@GhostMutt guess whether exactly that is happening here

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In other news, Microsoft Outlook does not deal at all well with %APPDATA% becoming unavailable

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When you buy a bunch of things at all sorts of prices but the mean price is a whole number of pounds: 👍

1 favourite 0 retweets

In reply to @HaggardHawks

@HaggardHawks amusingly, BRIE and DELI are both encoded as – · · · · – · · · · (as is, erm, TESTES)

4 favourites 3 retweets

In reply to @HaggardHawks

@HaggardHawks I can send you a full list of scrabble words with the same morse encodings, if you'd like. Took 5 mins in Python.

0 favourites 0 retweets

In reply to @HaggardHawks

@HaggardHawks oooh, is this better? BIOLOGICALLY and THEOLOGICALLY look the same in Morse

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An ambulance with an advert for a racecourse on its side just drove by. Huh?

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Oooooooh, purdy! twitter.com/matheknitician…

2 favourites 0 retweets

Very nice indeed! Critical values in unlikeliness twitter.com/Parcly_Taxel/s…

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In reply to @RobertTalbert

@RobertTalbert in the UK, particularly oxbridge, you 'read' a subject

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In reply to @StudentsNCL

@StudentsNCL @nclroblib wot no Booky McBookface?

5 favourites 1 retweet

Once I saw a kid on the metro at 8am in exam week, shakily holding a can of Monster. Suspect he didn't pass. twitter.com/Mr_Hanraham/st…

0 favourites 1 retweet

Working on very important material for @EAMSConf delegates

8 favourites 2 retweets

@moynihaj I watched the first episode of this! Good, but I think the one by that chap who used to work for channel 4 was better

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Eugh twitter.com/ucu/status/758…

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In reply to @think_week

@think_week try asking @WWTWashington

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Open source software people: have you ever designed a leaflet promoting your project? Got any tips? @wstein389 @ben_nuttall @drvinceknight

0 favourites 2 retweets

In reply to @ben_nuttall

@ben_nuttall I use inkscape, but lack design skills

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COOKIES?!?! #holidaycereal

1 favourite 0 retweets

OK, whoever it may concern: what do you think of this leaflet, to print at A5 format? github.com/numbas/logo/bl…

1 favourite 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft get you with your anachronistic zero joke

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Just passed an academic explaining the concept of a "lunchtime poster session" to her daughter, who looked surprisingly interested

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A nice little Chinese lady just held her umbrella over my head at a pedestrian crossing.
When I say 'just', I mean she almost didn't manage

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If those footsteps were real, my quick calculation reckons they'd be a size 2,4000 twitter.com/nclroblib/stat…

1 favourite 0 retweets

Two satisfying id numbers today: question #15000 and issue number #321

1 favourite 0 retweets

In reply to @PumphreysMath

@PumphreysMath well done, or was your son literally born yesterday?

0 favourites 0 retweets

Maths party trick intel: a 275ml appletiser bottle is very slightly taller than its circumference.

1 favourite 0 retweets

In reply to @NextLevelMaths

@NextLevelMaths the widest one

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @nomad_penguin ooh, that looks good

0 favourites 0 retweets

Well that's not a suspicious return address at all...

2 favourites 0 retweets

In reply to @robotmaths

@AdamCreen that is a TOP FACT

0 favourites 0 retweets

Who listened to mine and @stecks's podcast, All Squared? Did you like it? Did you not like it? aperiodical.com/category/main/…

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge ta. I'm looking for that rare No/Yes/Yes answer combo

0 favourites 0 retweets

A nice sequence: minimum number of crosses to get n distinct Bingo lines in an infinite grid oeis.org/A273916

0 favourites 0 retweets

In reply to @aperfect

@aperfect aw, she's doing her bit! Good cat

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Neither do I twitter.com/Parcly_Taxel/s…

0 favourites 0 retweets

So many of Corbyn's campaign tweets look like they're from Mad Libs: Policy Edition twitter.com/jeremycorbyn/s…

0 favourites 1 retweet

#everydaysexism

6 favourites 0 retweets

August

No flagged emails in my work inbox! Happy hooray! This happens approximately once every never.

3 favourites 0 retweets

In reply to @robinhouston

@robinhouston so 2x²+3x+1 would be written 2x²+2*(3/2)x+1 ?

0 favourites 0 retweets

Picking at random, you've got a 61/1800 ≈ 3.4% chance of getting an arrangement that works. twitter.com/MrJohnRowe/sta…

3 favourites 1 retweet

In reply to @stimarco

@stimarco @HaggardHawks hence "same pattern of dots and dashes" and not just "same in Morse code"

0 favourites 0 retweets

Satisfying: 369 Interesting Esoterica entries: read.somethingorotherwhatever.com
(or you can write it as 0369 for bonus fun)

0 favourites 0 retweets

Someone has sprayed a LOT of Lynx outside my office

1 favourite 0 retweets

"Caution: do not buy this book!" it says. I really really want to buy this book. lulu.com/shop/michael-n…

0 favourites 0 retweets

In reply to @StudentsNCL

@StudentsNCL @nclroblib #statuephotobomb

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths that's approximately a size -19 UK shoe

0 favourites 0 retweets

FIGHT! @TweetsofCushing

0 favourites 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing 19 = 1*1+9*2 is the only multi-digit number equal to the sum of its digits multiplied by their position

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson ♫ Hey now, you're Oracstar, get the cistern, ... ♫

0 favourites 0 retweets

Also me. twitter.com/GhostMutt/stat…

0 favourites 0 retweets

In reply to @plusmathsorg

@plusmathsorg are you going this year?

0 favourites 0 retweets

They're back! In an exciting new video format. 90% fewer jokes and 500% more windows 10 UI nightmares twitter.com/aperiodical/st…

2 favourites 2 retweets

v glad my ferry is tomorrow and not today

0 favourites 0 retweets

What mathematical sights should I see in Ireland this week? We're doing an anti-clockwise lap of the island. @CardColm @aoibhinn_ni_s

0 favourites 1 retweet

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s @CardColm broom bridge already in the list. Good shout about Cork - that's where we're staying longest!

1 favourite 0 retweets

An auspicious time to set off

4 favourites 0 retweets

#brexit

1 favourite 0 retweets

#eirrival

3 favourites 0 retweets

Incredible hexagonal symmetry at the giant's causeway! (this is the car park)

5 favourites 3 retweets

Bundoran, one of Ireland's top beaches.

4 favourites 1 retweet

Why on earth would this travelodge be blocking BBC.com?

0 favourites 0 retweets

In reply to @stecks

@stecks redirects to BBC.com because I'm abroad

0 favourites 0 retweets

Limerick is lovely, but it appears to have gone bust.

0 favourites 0 retweets

That fourth bullet point is the John Humphrys clause. twitter.com/PJTheEconomist…

0 favourites 0 retweets

Poppy the dog has so many fans in Cork!

0 favourites 0 retweets

Me ∧ Poppy ∧ your man @georgeboole200

4 favourites 1 retweet

In reply to @My_Metro

@My_Metro you're not going to do this every night, are you? Just put your working hours in your bio

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths I made one of those a few years ago. Still just about hanging together on top of my work PC

0 favourites 0 retweets

What the actual

1 favourite 0 retweets

Newbiggin is an odd place twitter.com/alicethelloyd/…

1 favourite 0 retweets

Holidaying has been tough on ol' Pop.

2 favourites 0 retweets

These graphs are not easy to compare. #mathspolice

11 favourites 6 retweets

#breentry

1 favourite 0 retweets

In reply to @ruimvieira

@ruimvieira my nexus 5x, with hdr turned on

0 favourites 0 retweets

An auspicious time to arrive home. (Just imagine I had it set to 12 hour clock)

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths @MathsInspiratn @standupmaths @ColinTheMathmo bah, wrong newcastle 😞

2 favourites 0 retweets

Playing Civ 5 while recovering from holidaying. The world will tremble under the rule of my bold avocado empire

2 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts Mrs Lawson-Perfect demands more Gwydion

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I saw some in Wyoming a few years ago. So cute! flic.kr/p/6GQQbz

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb my brother @aperfect is to be credited, with his expensive cameras and skill at composing a photo

0 favourites 0 retweets

In reply to @mattyridesmith

@matthewgundel but heat makes it compost quicker! You're a hero!

1 favourite 0 retweets

In reply to @TweetsofCushing

@TweetsofCushing is it maybe the political leanings of the people who invented each notation?

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK hugs

0 favourites 0 retweets

Wife: why don't you have any proper music, CP?
Me: *regrets decades of listening to avant-garde French radio*

0 favourites 0 retweets

AND YET I TOOK A 20% PAY CUT twitter.com/randal_olson/s…

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK my current plan is to vote for Corbyn so they put up a better candidate for the inevitable second coup

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt as time passes, I've come to think I enjoyed settlers 1 more than 2. I'm aware this puts me in a minority.

0 favourites 0 retweets

Back at work after my holidays, and there's a little tray of @NclNumbas stickers hanging outside my office!

2 favourites 1 retweet

Doing complicated wine maths while planning our conference dinner. Lots of fractions.

0 favourites 0 retweets

Suspiciously high-quality paper in the office printer today.

0 favourites 0 retweets

Good question. The first one. twitter.com/dmswart/status…

0 favourites 0 retweets

In reply to @dmswart

@dmswart interesting...

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor programmers.stackexchange.com/questions/1127…

1 favourite 0 retweets

In reply to @drvinceknight

@drvinceknight @explainevrythng ooh, that looks really nice! I've installed it and I might record some fun maths at lunchtime.

2 favourites 0 retweets

Every Gaussian integer (complex number a+ib, with a and b integers) can be written as a sum of powers of (-1+i). szdg.lpds.sztaki.hu/szdg/desc_nums…

6 favourites 0 retweets

Student has written "hypothesnus". My brain completely stalled; it took switching to the twitter window to get my brain to say "hypotenuse"

0 favourites 0 retweets

In reply to @JSEllenberg

@JSEllenberg Jordan I think you mean tou're

1 favourite 0 retweets

This kid just so much disdain for the metro ticket barrier as he swiped through. SO MUCH DISDAIN. I want to be in his gang!

0 favourites 0 retweets

In reply to @ZenoRogue

@ZenoRogue yeah, I think it says that on the page I linked, or the one that linked me to it

0 favourites 0 retweets

In reply to @phillord

@phillord I found its quickest to just go to the travelshop

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @stecks @aPaulTaylor @sidgupta234 what are the lower and upper bounds on the length of the pattern?

0 favourites 0 retweets

In reply to @christianp

@Andrew_Taylor @stecks @aPaulTaylor @sidgupta234 (reluctant to experiment on my own phone in case I lock myself out of it)

0 favourites 0 retweets

In reply to @christianp

@Andrew_Taylor @stecks @aPaulTaylor @sidgupta234 sorry to spam but I just googled it and someone came up with 389112 quora.com/Android-operat…

1 favourite 0 retweets

Terrible side-effect of my summer holiday: I've forgotten how to procrastinate. Someone nerdsnipe me, please!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I've seen that before somewhere

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge click this link if you want spoilers: oeis.org/A032434

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight crikey, that sounds like a recipe for stress! Glad you've separated them

1 favourite 0 retweets

I can make a rough guess... twitter.com/Parcly_Taxel/s…

0 favourites 0 retweets

If you can build this, do: the mobile interface is so cool! twitter.com/HilariousCow/s…

1 favourite 0 retweets

In Computer Science for a talk on victorian data processing. They're a different sort of people over here.

0 favourites 0 retweets

Today's job: give Clever Hans a pretty pink @oomlout button for when he gets confused

1 favourite 1 retweet

SO INSIGHTFUL twitter.com/outofthenorm2/…

2 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith 2016 claims another victim

2 favourites 0 retweets

Yeah, I have a few problems with this.

2 favourites 0 retweets

First time playing isthisprime.com/game/ in a while. Not too bad, not too great.

2 favourites 0 retweets

Geometry diagram challenge: show that a circle is a circle (and not an ellipse or worse) without using words

0 favourites 1 retweet

In reply to @GhostMutt

@GhostMutt the convention in diagrams is to assume that something that looks circular is. What if not? So, yes, wing it

0 favourites 0 retweets

Good question. I'll allow it twitter.com/Pyfagorass/sta…

0 favourites 0 retweets

Good effort, but this is what I don't want. Suppose you don't know c and r stand for centre and radius twitter.com/singinghedgeho…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge that's my first idea. Would that construction be enough to look circle-y? Might make this a mathsjam compo compo compo

0 favourites 0 retweets

In reply to @singinghedgehog

@singinghedgehog (non-English speakers?)

0 favourites 0 retweets

In reply to @singinghedgehog

@singinghedgehog I'm asking you to drop that exact convention

0 favourites 0 retweets

September

In reply to @tentivetodetail

@tentivetodetail @MathsWorldUK @robeastaway tweet it and they will come. #matrix2016

1 favourite 1 retweet

Setting off for Leeds for @MathsWorldUK #matrix2016

3 favourites 1 retweet

TITIL (Today I think I learned) that a banana has 5 sides. Inclined to believe it because 5 is a fibonacci number. Got a counterexample?

0 favourites 0 retweets

*slow handclap* twitter.com/irks5/status/7…

3 favourites 0 retweets

Like it. Best answer so far. twitter.com/CloudoidLtd/st…

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle BT YCL L

1 favourite 0 retweets

#matrix2016 people: what's the breakfast plan?

1 favourite 0 retweets

In reply to @RealityMinus3

@RealityMinus3 but where?

0 favourites 0 retweets

In reply to @RealityMinus3

@RealityMinus3 I'm already out if the building, but I'll meet you in the refectory

0 favourites 0 retweets

Monument commemorating the two bacon rashers who founded Leeds University. Very moving. #gosizzlers

18 favourites 3 retweets

In reply to @CounterOfSheep

@ajkiddle think of it as a cleaning process, BuT You CaLL it what you like

1 favourite 0 retweets

Just passed a hair salon called "Kurl Up 'N' Dye". #aspirational

1 favourite 0 retweets

Crikey. twitter.com/ebuie/status/7…

0 favourites 0 retweets

My next pancake day just got a lot more complicated twitter.com/MFAnnie/status…

1 favourite 0 retweets

Horrendous UX on Boots photo printing: not logged in, started uploading photos, <1 minute later it lost that and switched to a login page

0 favourites 0 retweets

In reply to @jamestanton

@jamestanton pictured: my wife, on working out how to do the international maths salute

3 favourites 1 retweet

In reply to @Massicrypt

@DrJakeyy thanks! Does it involve setting the maximum number very high? Crash is a bug, but easy high score is a feature ;)

0 favourites 0 retweets

In reply to @Massicrypt

@DrJakeyy yes but with probable prime checker so it would take a *seriously* big number. Watching strictly at the mo but will investigate

0 favourites 0 retweets

In reply to @Massicrypt

@DrJakeyy hrm, maybe I didn't use the same primality checker as the main site...

0 favourites 0 retweets

Happy 2²/3²/4²!

95 favourites 89 retweets

Northerner than thou: I got 9/10 on this quiz of Northern places play.bbc.co.uk/play/pen/g4xp1… (got Rievaulx Abbey, which I've visited, wrong 😩)

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I assumed he'd start at the more well-known wall

0 favourites 0 retweets

In reply to @theyellowstereo

@theyellowstereo I had to watch it as it was broadcast, over weeks. It was torture!

1 favourite 0 retweets

Cor. twitter.com/SeabirdCentre/…

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith I'm driving down tomorrow morning. Pray for me.

1 favourite 0 retweets

I love a notation question, me. I wonder if being taught "function machines" makes this easier. twitter.com/ColinTheMathmo…

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo First one is 2*sqrt(2). Next is on page 577 of Shamos' catalogue as a good approx. of 1+sqrt(2)/2: euro.ecom.cmu.edu/people/faculty…

1 favourite 0 retweets

Messing about with polar plots, I've just found my new signature desmos.com/calculator/ert…

2 favourites 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo there is: the Inverse Symbolic Calculator isc.carma.newcastle.edu.au

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yeah, it doesn't do simplification. Intriguingly, the second suggestion is 3*cos(Pi/12)-sin(Pi/12)

0 favourites 0 retweets

TEACHERS: can anyone help me out by taking a few screenshots of MyMaths? Any exercise will do, just want a few for illustration purposes

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen yes please!

0 favourites 0 retweets

Points deducted for making the canonical joke; points added for actually working it out twitter.com/zbvif/status/7…

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston I think that cat might be a wrong'un

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor what's this referring to?

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor that's crazy!

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor *weighing up whether to google "nun with bangs"*

1 favourite 0 retweets

I wonder when my nephew will become comfortable with his own existence. Doesn't look like it'll be soon. twitter.com/aperfect/statu…

6 favourites 0 retweets

Crazy idea of the day: use @NclNumbas to write the @EAMSConf feedback form

1 favourite 0 retweets

In reply to @COOLIO_FEAT_LV

@HELIUM_HEED I once sat near a 2-year-old called Odin

1 favourite 0 retweets

In reply to @stecks

@stecks youtu.be/-VsmF9m_Nt8

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts you might get some good advice from @MadeleineS or @haggismaths

1 favourite 0 retweets

Last year I accused a friend of being 30 on what turned out her 29th birthday. Making up for it this year with maths

6 favourites 1 retweet

In reply to @FennekLyra

@FennekLyra Oh no, mental maths error!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett 😏

0 favourites 0 retweets

In reply to @dandersod

@dandersod @mathhombre you might enjoy this codepen.io/christianp/ful…

2 favourites 2 retweets

In reply to @outofthenorm2

@outofthenorm2 there's a school of thought in conservation which prefers to make restored areas look obvious, instead of matching original

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz yes

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz in reverse order: I am, and yes, after my conference is finished 😀

0 favourites 0 retweets

Starting the second half of #eams2016 in LT1 is our keynote speaker Mike Gage of the WeBWorK project.

1 favourite 2 retweets

In reply to @mike_geogebra

@mike_geogebra question at this conference: how do you rotate a 3d Geogebra view on mobile?

0 favourites 0 retweets

In reply to @mike_geogebra

@mike_geogebra I'll pass that on. Haven't seen the problem she was having myself

0 favourites 0 retweets

In reply to @csgui

@csgui yes, assuming we didn't mess up, recordings will be online after the conference

1 favourite 0 retweets

In reply to @mike_geogebra

@mike_geogebra no dice. This is just a worksheet with some axes in space, embedded in a page. Dragging just scrolls the containing page.

0 favourites 0 retweets

OK, the #eams2016 delegates have gone home, we can let the normal Tyneside weather back 🌫️☁️

4 favourites 1 retweet

In reply to @outofthenorm2

@outofthenorm2 interesting!

0 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag re the last para: Google Maps needs to use a projection too, and it's Mercator! en.wikipedia.org/wiki/Web_Merca…

0 favourites 0 retweets

I think I know some people who might like this: 3d printed icosahedral bottle opener othr.com/products/ico-b… (*cough* @standupmaths)

2 favourites 0 retweets

In reply to @henryseg

@henryseg and that price!

0 favourites 0 retweets

In reply to @republicofmath

@republicofmath @mathhombre what's going on with the order of the choices in that question? And there are 9 steps, so why only 6 choices?

0 favourites 0 retweets

Well, that's my first github commit in a fortnight, and my second since August. Back on the wagon after a lengthy admin-based tangent

0 favourites 0 retweets

Interesting instance of Simpson's paradox (sort of) - Australia is no group's top choice, but is top choice overall twitter.com/YouGov/status/…

1 favourite 0 retweets

In reply to @christianp

... though the problem is that the categories overlap in odd ways, in addition to any Simpson-style paradox

0 favourites 0 retweets

In reply to @HaggardHawks

@HaggardHawks would it please you to learn that the night sky above Gotham is currently being lit by searchlights? chroniclelive.co.uk/news/north-eas…

0 favourites 0 retweets

But *of course* high-level Pétanque matches are abundant on youtube! youtube.com/watch?v=7DaI18…

0 favourites 0 retweets

Oh my god there are Petanque shoes why do I have such gigantic feet amazon.co.uk/RIVIERAS-Mocca…

0 favourites 0 retweets

In reply to @RobertTalbert

@RobertTalbert that's the British pronunciation

1 favourite 0 retweets

Dear Germans: what's your beef with card payments? So inconvenient!

0 favourites 0 retweets

Next month, I'll be abroad on @MathsJam night again. Oslo this time. And it looks like there's already a Jam there!

1 favourite 0 retweets

a) MathsJam is the most welcoming audience I've ever been in, and b) Alison is very calming, so... 👍👍 twitter.com/ajk_44/status/…

3 favourites 0 retweets

One of our new pure lecturers is the spit of @henryseg. Has he started 3D-printing clones?

0 favourites 0 retweets

My wife has drawn me a helpful euler diagram to show which clothes can be washed together. May interest @FOTSN. #crazyspousestories

5 favourites 0 retweets

This was my life pre-marriage. Helen says no. twitter.com/aPaulTaylor/st…

0 favourites 0 retweets

Challenge: guess number of pages in issue 4 of @chalkdustmag based on this tweet twitter.com/Pecnut/status/…

1 favourite 1 retweet

Have you organised a hack day or code camp for an academic open source project? I'd like to talk to you

0 favourites 4 retweets

A novel take on cumulonumbers twitter.com/Tony_Mann/stat…

1 favourite 1 retweet

The second derivative of the amount of daylight is positive again! Hooray! twitter.com/ColinTheMathmo…

4 favourites 2 retweets

In reply to @jjsanderson

@jjsanderson there's an official touchscreen uk.rs-online.com/web/p/products…

0 favourites 0 retweets

In reply to @christianp

@jjsanderson ... whoops, not 720p. What am I thinking of?

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson ah, I was thinking of hdmipi kickstarter.com/projects/raspi… but I can't see how to obtain one

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs @bluecombats @MarHarStar @chalkdustmag not unless I can appear via video link 😔

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN @BBCRadio4 hooray!

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA nah, that's just unhelpfully written

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall are you trying to find the minimum measurable unit of nostalgia?

2 favourites 0 retweets

That's really unsettling...
WHO TYPES LIKE THAT?

3 favourites 1 retweet

There isn't an emoji for how much this has confused me twitter.com/JamesMoosh/sta…

0 favourites 0 retweets

It brings me immense joy that Ian's shoelace site (fieggen.com/shoelace/) is second in google's autocomplete for "Ian's"

2 favourites 0 retweets

In reply to @JimPropp

@JimPropp @evelynjlamb but, if the most significant digit of your age is 1, with two-colours you can more easily take the 2's complement

0 favourites 0 retweets

True in incognito too, and top hit is "ian's bus stop", which I've never visited (and have no interest in) twitter.com/aperfect/statu…

0 favourites 0 retweets

The amount of thought and love that Ian has put into his shoelace site is inspiring: interactive lacing customiser! fieggen.com/shoelace/spide…

0 favourites 0 retweets

Spiderman taking photos of the garden of the future. #kpnupts

2 favourites 1 retweet

In reply to @pkrautz

@pkrautz aha! On reflection, I'm less sure. Get me on hangouts tomorrow though?

0 favourites 0 retweets

Pretty stoked about windows 10 updating itself and being unusable for an unknown length of time when I turn it back on. 🤘

5 favourites 1 retweet

And now my first ever Windows 10 BSOD!

2 favourites 1 retweet

@llewmihs that led me to this scary blog post: mattsteinglass.wordpress.com/2007/02/09/for…

0 favourites 0 retweets

In reply to @stecks

@stecks me!

0 favourites 0 retweets

This is a nice puzzle! twitter.com/Integral_Maths…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge bad LaTeX delimiter after "an equation of your line would be"

0 favourites 0 retweets

In reply to @Steve_Perfect

@Steve_Perfect youtube.com/watch?v=mwHJCi…

0 favourites 0 retweets

"Substitope" is my favourite new word today evl.uic.edu/cavern/rg/2004…

2 favourites 2 retweets

Following on my vague "who's run a hack day" tweet, I've written some more specific questions on google+ plus.google.com/+ChristianPerf…

0 favourites 0 retweets

Should've guessed: mine and @TweetsofCushing's interpretations of "a large number of decks of cards" differ by orders of magnitude

1 favourite 0 retweets

In reply to @noneatnamesleft

@noneatnamesleft I got a single letter

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith 😌

0 favourites 0 retweets

Incredible! twitter.com/Kekeflipnote/s…

0 favourites 0 retweets

In reply to @lukebacon

@lukebacon @mscroggs @chalkdustmag @icoutreach must take umbrage with the Katrina diss: lightsails could be said to walk on sunshine

3 favourites 0 retweets

*ack!*
Nerdsniped!
... tell my wife I love her ...

1 favourite 0 retweets

Bossa Nova Rammstein! youtu.be/PyTqXqRuYq0

1 favourite 0 retweets

omg where did september go please come back

2 favourites 0 retweets

In reply to @robeastaway

@robeastaway I've just found your "Jardin's principle" article. Is Jardin a reference to Chance the gardener, from Being There?

0 favourites 0 retweets

In reply to @CardColm

@CardColm since it needs to have uniform density, won't it cost a ton to print?

0 favourites 0 retweets

October

Prompts a good question: what's the most connected components you can win while taking the electoral college? I bet @wacnt twitter.com/JSEllenberg/st…

0 favourites 0 retweets

They ported A Kingdom for Keflings to Windows?! ... don't expect to hear from me for a while

0 favourites 0 retweets

Advert featuring a downbeat cover of a pop song season has started early this year.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge conjecture: with n variables, you can get at most 2^n - 1 local maxima in the graph (e.g. a,b,c=4,2,1 gives 7 peaks)

0 favourites 1 retweet

Obtuse art project: a vinyl record etched with a harmonograph. You have to recreate the initial conditions exactly to hear the recording.

1 favourite 0 retweets

A student appears to be speedrunning our diagnostic test: got 100% in 11 minutes on his 4th attempt. (100% on all previous attempts too)

2 favourites 2 retweets

In reply to @mscroggs

@mscroggs @chalkdustmag I... have... work... to do...

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall wot no input sanitisation?

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall ahh, I missed the 'if instruction in instructions' line. Not sure why, since that's what I was looking for.

0 favourites 0 retweets

Am I nerdy enough to buy one of these? twitter.com/ZenoRogue/stat…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett I see I have a reputation

0 favourites 0 retweets

Mathematics is the foundation of my work

28 favourites 25 retweets

In reply to @mscroggs

@mscroggs I heard some chump is busy tweeting instead of paying attention

1 favourite 1 retweet

In reply to @ProfNoodlearms

@ProfNoodlearms @drvinceknight and as long as it wasn't this one: 🍆

2 favourites 0 retweets

I have omg ban men every now and then if I get bored of pad thai twitter.com/JSEllenberg/st…

0 favourites 0 retweets

Suppose I place a man on every playing field in GB. Considering only A and M roads, under Carcassonne rules how many points do I earn?

0 favourites 0 retweets

In reply to @christianp

@christianp (project flyovers onto the ground, so they create intersections)

0 favourites 0 retweets

In reply to @stecks

@stecks quite.

0 favourites 0 retweets

I'll only celebrate ISO palindrome day, on 2020-02-02 twitter.com/mscroggs/statu…

8 favourites 6 retweets

In reply to @jjsanderson

@jjsanderson I'm having the same problem, setting it up on someone's old laptop! Turns out, windows update has a bug which makes it not run

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson @IanHopkinson_ @alistair and I use the standard windows command prompt, because I'm hardcore

0 favourites 0 retweets

In reply to @christianp

@jjsanderson @IanHopkinson_ @alistair (with ConsoleZ github.com/cbucher/console)

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem send him in as usual, and say he's come as a pair of pants: en.wikipedia.org/wiki/Pair_of_p…

2 favourites 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo your @MathsJam email comes just too soon: I was going to ask you today if you're going to do the planning wall again

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @MathsJam Trello? Never used it, but it leapt to mind

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo it looks pretty simple. Or, wekan.io is an open source thing which looks v simple

0 favourites 0 retweets

In reply to @mike_geogebra

@mike_geogebra @ColinTheMathmo Etherpad looks good to me

0 favourites 0 retweets

The dog is not a fan of Tuvan throat singing. Who would've guessed? Anyway, my Chromecast, my rules.

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK #thatwastheplan

0 favourites 0 retweets

Number 3, or map of post-brexit Britain?

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith you have the best parenting stories

0 favourites 0 retweets

"We believe it’s the people who use Metro - and also those who don’t – who are best placed to tell us what works"
Everyone is best placed

1 favourite 0 retweets

Turns out the juggling balls on my desk are perfect for dampening my phone's vibration. (Picture not included for obvious reasons)

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ajkiddle crikey, I can't think of a more dystopian phrase than "survivors will be prosecuted".

0 favourites 1 retweet

In reply to @CounterOfSheep

@ajkiddle @icecolbeveridge indeed!

0 favourites 0 retweets

Ooh, is there a name for this fallacy? "Inclusion-inclusion"? twitter.com/Andrew_Taylor/…

0 favourites 0 retweets

Official tweet of @MathsJam 2016 twitter.com/realBrianONola…

0 favourites 1 retweet

In reply to @NewcastleCC

@NewcastleCC that's a shocking thumbnail image!

0 favourites 0 retweets

Negotiating an arrangement with @jamesgrime where I write code for him and he writes words for me. Unsure who's brain and who brawn here.

3 favourites 0 retweets

*periodic rant about webpages containing inline links coloured in red with no underline*

4 favourites 1 retweet

In reply to @samholloway

@samholloway I'm not just being obtuse - I can't distinguish red from black!

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz what's the vphantom supposed to do there?

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz something like this? checkmyworking.com/misc/makebigma…

0 favourites 0 retweets

Who else still hasn't seen a plastic fiver? I've made six transactions where I get £5 in change and still no dice!

1 favourite 0 retweets

I've just remembered how good a film Lucky Number Slevin was

2 favourites 0 retweets

Sorry, non-cisgendered people, I've been writing `{% trans %}` all day to make my templates translate and now the word has lost all meaning

0 favourites 1 retweet

Looking at the menu of my hotel restaurant in Oslo, and weeping. £18 for a small margherita pizza!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge 10 NOK ≈ £1 at the moment

0 favourites 0 retweets

Guys, you can stop trying to make fetch happen. There's a polyfill: github.com/github/fetch

1 favourite 0 retweets

I don't think 2016 can handle many more bleak tweets like this twitter.com/ChrisMaslanka/…

0 favourites 0 retweets

In reply to @ChrisMaslanka

@ChrisMaslanka my employer will pay. The question is what I can get away with claiming for. Can I justify £12 on a choc brownie for dessert?

0 favourites 0 retweets

A Venn diagram might work - draw an X in the region corresponding to the constitutional arrangement you'd like twitter.com/Andrew_Taylor/…

1 favourite 0 retweets

Petrol is currently a numerologically, if not financially, satisfying price. I bought 41.14 litres for £45.54.

2 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass just checked, and it seems that's only in Python 2 - in Python 3, it doesn't reassign x

0 favourites 0 retweets

WHY ARE BRANSTON TINS SO HARD TO OPEN?!?!

1 favourite 0 retweets

I got myself a fancy-pants Zyliss bean-revealer, but it could gain no purchase on the tin. So delicious, yet so inaccessible! twitter.com/christianp/sta…

0 favourites 0 retweets

Oh, bravo twitter.com/icecolbeveridg…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett are you in Doncaster, or Huddersfield? I think I recognise that shiny wall

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett that must be what I was thinking of. Now trying to remember why I would ever have changed trains in Sheffield

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @solvemymaths ... there's an easier way, isn't there?

3 favourites 0 retweets

In reply to @christianp

@ColinTheMathmo @solvemymaths oops

1 favourite 0 retweets

Currently considering filling a 1TB drive with Champernowne's constant.

1 favourite 0 retweets

Rats! The cheapest you can register a .ne domain for is $286.50 dnpric.es/compare-regist…
champernow.ne was a beautiful dream

1 favourite 0 retweets

Just discovered my railcard had expired, and I'm getting a train next week. Eep!

0 favourites 0 retweets

In reply to @extremefriday

@extremefriday I've written a couple of blog posts collecting some favourites: aperiodical.com/2013/03/games-… aperiodical.com/2014/09/some-m…

0 favourites 0 retweets

I'm in Oslo AND it's @MathsJam night BUT Oslo Jam isn't meeting this month BUT I'm having dinner with mathematicians SO MAYBE hooray?

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @johndavidread is that "station codes OR logic gates", or "station codes XOR logic gates"? Would affect a Jam in Anderston

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @johndavidread doh, of course

0 favourites 0 retweets

I'm at a conference and I'm not scoffing as much food as I can get away with. What's happening to me?

Am I... old?

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge *tumbleweed rolls across aperiodical.com*

Congratulations!

0 favourites 0 retweets

This new game from @Nat_Numeracy, Star Dash Studios, is surprisingly good! I've played it for 15 mins and I'm hooked nationalnumeracy.org.uk/star-dash-stud…

3 favourites 1 retweet

In reply to @christianp

... it's a fairly mindless runner game crossed with some simple real-world maths problems. Does an unusually good job of motivating numeracy

0 favourites 0 retweets

Only two people taller than me in a crowd of 100 Norwegians is not bad going!

0 favourites 0 retweets

My flight leaves from gate E17. I guess the Norwegians want me to... stay another day. 🕶️

2 favourites 0 retweets

In reply to @christianp

@christianp whoops, it's now E16. Oh well! It's Alright, I can waste time Counting Clouds instead.

0 favourites 0 retweets

But in Bridget Jones's Baby, one of the love interests is a very charming mathematician twitter.com/CRMatematica/s…

2 favourites 0 retweets

My flight number is 0963. That's an arithmetic sequence in base 12! #nice

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ehh, whatevs

0 favourites 0 retweets

Newcastle doesn't really have enough money to serve current residents, but it's ready to take its share of refugees. So proud to live here! twitter.com/thewillmetcalf…

2 favourites 0 retweets

Just had a sneak peek at the National Trust's new slogan:
"It's somewhere nice to have a walk, but with toilets and cake."

2 favourites 0 retweets

Ooooh twitter.com/maanow/status/…

0 favourites 0 retweets

In reply to @JeffriesBilly

@JeffriesBilly hah, my wife's been playing this!

1 favourite 0 retweets

Well, I don't come close to fitting my legs in a Nissan leaf!

0 favourites 0 retweets

I want a big list of word problems that you might ask a primary school kid. Just text; don't care about presentation. Any ideas? @mathsjem?

1 favourite 1 retweet

In reply to @mathsjem

@mathsjem Yessss, thank you!

2 favourites 0 retweets

This is a really good one! twitter.com/numberphile/st…

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall This appeared serendipitously in my RSS reader, about the mozilla logo: jwz.org/blog/2016/10/t…

0 favourites 0 retweets

This sentence is very not very good twitter.com/My_Metro/statu…

1 favourite 0 retweets

Such a nice day!

1 favourite 0 retweets

How did they know I've been doing some more twiddling with #cleverhans?

0 favourites 0 retweets

I'm not going to RT them all, but @Ri_Science has just posted a series of increasingly excellent Pumpkin/Science reaction gifs twitter.com/Ri_Science/sta…

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith "man with tiny flag floating above his left shoulder, held up by eldritch power"?

0 favourites 0 retweets

Today: coming up with a polite way of saying "I don't want to be part of an all-male speaker lineup".

1 favourite 1 retweet

In reply to @christianp

12 out of 12 male speakers at an education conference implies you didn't try very hard

2 favourites 0 retweets

OK. Being one of those autistic ones, I'm wary of finding the right tone! twitter.com/walkingrandoml…

1 favourite 0 retweets

To do this constructively, I'd like to say something like "it's incumbent on conference organisers to make an effort to get women speakers" twitter.com/C_J_Smith/stat…

0 favourites 0 retweets

In reply to @christianp

but what can I point to to explain why it's the organiser's responsibility?

0 favourites 0 retweets

In reply to @miclugo

@miclugo @JSEllenberg I thought you twought

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith Not yet - needed to check with m'wife that I can attend

0 favourites 0 retweets

November

In reply to @icecolbeveridge

@icecolbeveridge 'postperson', while alliteratively appealing, sounds like something from a Ray Kurzweil book

0 favourites 1 retweet

In reply to @robeastaway

@robeastaway There's a contact form at the bottom of the page. Can't hurt to ask!

0 favourites 0 retweets

Would do if I knew the lineup. My response is based on the lineup last time the conference ran. twitter.com/spdegabrielle/…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett how did it go? I love it, but it didn't go down well at NCL MathsJam

0 favourites 0 retweets

In reply to @RealityMinus3

@RealityMinus3 @icecolbeveridge really makes the point that the Bechdel test is a very low bar to clear

0 favourites 1 retweet

"I don't want to be part of an all-male lineup" update: conference organiser agrees, and the first 3 speakers at this event are all women

7 favourites 0 retweets

In reply to @kenfodder

@kenfodder #cablegoals

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett it can drag on. Different groups work differently; I think Z5 ends quickly because there are so many ways of making the target

0 favourites 0 retweets

Today: successfully wrangled supervisord to do the boring keep-stuff-running work for me

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel alas no, it's short for supervisor daemon: supervisord.org

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro @billgibbon took me a while to work out what "Pfm2" meant. I'm sure you've thought about it in depth, but I think 'P2' is clearer

1 favourite 1 retweet

Having a very jolly time setting up a "Deploy to Heroku" button for the new @NclNumbas LTI tool. It's like magic!

2 favourites 0 retweets

If A50 appeal goes to the European court, what judge could resist the temptation to make some sick burns about democracy in their ruling?

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall Brexit, stage right

1 favourite 0 retweets

In reply to @drvinceknight

@drvinceknight "ehh, that would be an ecumenical matter"

1 favourite 0 retweets

You know what they say about apples with big stalks...

1 favourite 0 retweets

In reply to @apgox

@apgox @ladyjadeamanda My wife double-barrelled. Fair's fair.

0 favourites 0 retweets

Aaaaaaaaag. Recorded a skype interview on Friday, and the sound on the recording keeps cutting out for 10 seconds at a time. Grrrr!

0 favourites 0 retweets

In reply to @christianp

you'd think you'd be able to piece together the rest of a conversation when you've got five sixths of it, but nope!

0 favourites 0 retweets

In reply to @stecks

@stecks @standupmaths out of context, that tweet could be FILTHY

1 favourite 0 retweets

In reply to @stecks

@stecks @standupmaths yikes, that took a turn

0 favourites 0 retweets

The last series of Taskmaster (TV's best show) ended with some cracking game theory - lowest unique no. donuts wins uktvplay.uktv.co.uk/shows/taskmast…

0 favourites 0 retweets

In reply to @benorlin

@benorlin have you seen plus.google.com/11766301541354…

0 favourites 0 retweets

Nice: I've found a US school district whose website blocks requests which originate outside the USA.

1 favourite 0 retweets

That sounded fittingly truthy, but I can see it just fine. twitter.com/njj4/status/79…

0 favourites 0 retweets

I'd never thought about it this way: how many groups of 23 do I need to be in before I meet someone with my birthday? twitter.com/joemazur3/stat…

0 favourites 0 retweets

Trying a demo of an unusual VLE. It's just emailed me my password in plaintext. 😒

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge put it in the OEIS!

0 favourites 0 retweets

Oh no, I think I'm coming down with a cold just a few days before the @MathsJam weekend! Boo hoo

0 favourites 0 retweets

In reply to @jjaron

@jjaron But: of the votes for the winner, pick the ones that counted. So they all count, but some do redundantly

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge they even spelt grafitti right!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge #artisanalvandalism

0 favourites 0 retweets

Toblerone regretting picking a shape where it's so obvious they've reduced the amount of chocolate

(image from math.stackexchange.com/questions/7430…)

0 favourites 1 retweet

In reply to @mscroggs

@mscroggs yep, I'm listening to that too. Needed.

0 favourites 0 retweets

Here's a thing: in the 90s, a significant number of well-respected people thought history was over.

3 favourites 0 retweets

What is this ?
SET for ANTS?

8 favourites 1 retweet

In reply to @Pecnut

@Pecnut I've seen just "3", but it assumes a lot of context that makes me wary - what if the other person is mad and thinks it means B = 3A?

0 favourites 0 retweets

In reply to @divbyzero

@divbyzero see it converge to pi very slowly at checkmyworking.com/misc/pi-day-20… (click in the square)

3 favourites 1 retweet

Mathematical sequences on Pointless right now! My dream category!

3 favourites 0 retweets

One contestant "hates maths", but is going for the "obvious" Fibonacci sequence. Bonza!

1 favourite 0 retweets

And 74 of 100 people got it right!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo NAME BADGES!

0 favourites 0 retweets

Yes, I *did* want my car to acquire an Ominous Rattle the day before I drive down to MathsJam!

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs #MathsJam

0 favourites 0 retweets

In reply to @aperfect

@aperfect WHERE CAN I OBTAIN THIS MARVELLOUS MUSIC

0 favourites 0 retweets

I feel old twitter.com/computermuseum…

0 favourites 0 retweets

Will be of interest to people at #mathsjam twitter.com/ZenoRogue/stat…

2 favourites 0 retweets

Does anyone at @MathsJam have a USB keyboard with them?

1 favourite 1 retweet

In reply to @MathsJam

@MathsJam Hans is waiting at the back of the room for your questions twitter.com/MathsJam/statu…

2 favourites 2 retweets

In reply to @GhostMutt

@GhostMutt Chip!! I had it on the Atari Lynx. So good!

0 favourites 0 retweets

Inferring from context that some of the numbers on @Tony_Mann's slides are red

1 favourite 0 retweets

In reply to @Raspberry_Pi

@Raspberry_Pi at the weekend I presented my Pi-powered clever horse: checkmyworking.com/misc/clever-ha…

2 favourites 0 retweets

Top tip: if your plot is too computationally expensive to run in realtime, make it scratch-and-sniff twitter.com/aperiodical/st…

0 favourites 0 retweets

I've just sat down and worked out how @DavidB52s' trick at @MathsJam worked. I knew I'd seen it before!

1 favourite 1 retweet

In reply to @divbyzero

@divbyzero are you saying 'packed leaves' so you can assume they're incompressible?

0 favourites 0 retweets

In reply to @TeaKayB

@TeaKayB @MathsJam John Bibby: @aa42john

0 favourites 0 retweets

In reply to @aa42john

@aa42john I was wrong about the polynomial-naming trick: note that N>the constant term c, and f(N)-c is a multiple of N.

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow @ajk_44 @DavidB52s Doesn't n need to be bigger than all the coefficients?

1 favourite 0 retweets

I've just spotted that @MathsInspiratn is in Newcastle on pi day next year. π (zequals) cheers for @robeastaway!

3 favourites 1 retweet

Whenever I think on how 'fascist' is a term we now use seriously when talking about politics, I start humming 'Actual Cannibal Shia LaBoeuf'

2 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall vim can fold comment lines, which would just leave comments at the end of code lines rtfm-sarl.ch/articles/hide-…

0 favourites 0 retweets

Did I dream that there was an algebra workshop here in Newcastle called "f ∘ g on the Tyne"?

5 favourites 1 retweet

At the @MathsJam conference, Matt Peperell won my competition by coming up with a way of marking a circle as a circle in a diagram

8 favourites 2 retweets

In reply to @LucasVB

@LucasVB @MathsJam It's pi, because that's the circle constant

0 favourites 0 retweets

I'm not a teacher, but I'd say "it's complicated" twitter.com/LucasVB/status…

0 favourites 0 retweets

In reply to @hnodrog

@hnodrog @MathsJam that would be Kathryn Taylor

0 favourites 0 retweets

In reply to @MathsRoadshow

@MathsRoadshow you inspired me to make another one, and my stack of Post-Its has *just* enough stickers left!

0 favourites 0 retweets

Today: sorting names of Irish towns by length so we can pick a name for our new server

1 favourite 0 retweets

I'm adding to my list of notation ambiguities, for students entering maths into a computer. Suggestions please!
e.g. is 'x(x+1)' a product?

2 favourites 2 retweets

In reply to @christianp

A naive parser could interpret 'x(x+1)' as 'x of x+1', and require 'x*(x+1)' for the product. But students will write x(x+1) to mean product

1 favourite 0 retweets

Several people at @MathsJam joined in with my order of some very tiny versions of Set and No Thanks from 999games.nl/tinytins. So tiny! twitter.com/SamHartburn/st…

0 favourites 0 retweets

In reply to @CardColm

@CardColm @Wolfram_Alpha interesting. Would be easy to get it to catch denominators of the form 2^m*5^n

0 favourites 1 retweet

In reply to @pkrautz

@pkrautz @zorkow oh, yes! I mentioned that when I met my collaborator a month ago, but forgot to follow it up

0 favourites 0 retweets

Yes, just like that! twitter.com/Pyfagorass/sta…

0 favourites 0 retweets

In reply to @CounterOfSheep

@ajkiddle is there a homomorphism between the autism spectrum and the autism waiting list?

0 favourites 0 retweets

5/6 student finalists from the South-East. Crikey. twitter.com/GoodThinkingSo…

0 favourites 0 retweets

In reply to @michiexile

@michiexile is there an ambiguity or inconsistency in the "not equal" notations, or are they just different ways of writing the same thing?

0 favourites 0 retweets

In reply to @zorkow

@zorkow @pkrautz ooh, I hadn't thought about a comma in the brackets. What if we allow '(x,1)' to be a 2D vector?

0 favourites 0 retweets

In reply to @zorkow

@zorkow where's the best place for me to look to find out how SRE works?

0 favourites 0 retweets

In reply to @ZenoRogue

@ZenoRogue that's a good one, thanks!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo that looks very much like phishing to me

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett replace "women" with a heavy object that belongs to one person and other people covet.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett yeah, the point is that the coveter can't be left unattended with the object. Maybe unlocked suitcases?

0 favourites 0 retweets

In reply to @MatthewArbo

@MatthewArbo @peterrowlett @icecolbeveridge good point. How about replacing women with people who know TV spoilers?

0 favourites 0 retweets

Guys, it's just occurred to me... is Donald Trump actually The Mule?

0 favourites 1 retweet

After a very long time, the map of current and potential @MathsJam venus is up to date again: google.com/maps/d/viewer?…

1 favourite 4 retweets

In reply to @nustem_uk

@ThinkPhysicsNE just been told I'm pinching some of your tablets for my masterclass tomorrow. Thanks!

0 favourites 0 retweets

In reply to @Kojipuff

@Kojipuff @MathsJam it's not on mathsjam.com either. Is Katie aware?

0 favourites 0 retweets

New Year's day 2017, the remaining celebs gather to celebrate surviving 2016. Then the meteor hits. Because this is the worst timeline

1 favourite 1 retweet

In reply to @nustem_uk

@ThinkPhysicsNE I'm running an Ri maths masterclass at Northumbria. The organiser says she's borrowed your tablets for one of my activities

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge yep: @mikegibson2010

0 favourites 0 retweets

Pleasingly matched numbers on @kelseyahe's profile. And her name is too long for twitter too!

1 favourite 0 retweets

Looking at the source code for a wordpress plugin. Never ask how the sausage is made.

13 favourites 3 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @RobJLow see also @CardColm in the @aperiodical back in 2012: aperiodical.com/2012/05/in-wha…

3 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett I do listen! I've mispronounced your name more times than Hans can count, so we're even

0 favourites 0 retweets

My big problem with school maths questions is there are so many ambiguities we teach kids to ignore. My answer to this is 1200 or more. Why?

5 favourites 1 retweet

In reply to @mountain_ghosts

@mountain_ghosts exactly!

0 favourites 0 retweets

Yes! twitter.com/mountain_ghost…

0 favourites 0 retweets

Criticism is easier than improvement: how do we state this question so there's only one answer, while keeping it uncomplicated? twitter.com/christianp/sta…

0 favourites 0 retweets

... while also motivating the question twitter.com/mountain_ghost…

0 favourites 0 retweets

Because they're easier to mark, and today's rant does not include standardised testing twitter.com/bitcraftlab/st…

0 favourites 0 retweets

omg @NclNumbas has had an incorrect implementation of nPr literally since it began. All because I copied some code I could've written myself

0 favourites 0 retweets

In reply to @libraryncl

@nclroblib it's a #snowfake! Snowflakes have sixfold symmetry - makeitatyourlibrary.org/play/6-pointed…

1 favourite 0 retweets

In reply to @pozorvlak

@pozorvlak see my many other quoted RTs for other ways of doing it

0 favourites 0 retweets

ANOTHER CHALLENGER ENTERS twitter.com/mikegibson2010…

0 favourites 0 retweets

Teeny tiny maths men. So cute! twitter.com/matheknitician…

0 favourites 0 retweets

In reply to @mcrmathsjam

@mcrmathsjam @aPaulTaylor happy birthday Paul!

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Default layout: staff.ncl.ac.uk/christian.perf…
Kid-friendlier layout: staff.ncl.ac.uk/christian.perf…

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I've tried to adapt the @NclNumbas interface to better suit school use. Please compare the exams linked below and tell me what you think twitter.com/christianp/sta…

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.@wacnt number of turns to display the full cycle of a Life glider when each 3x3 block of pixels is represented by a Rubik's cube

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On my way into work this morning I saw taxi number 1248. That's interesting.

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In reply to @jamestanton

@jamestanton if you cleared 90% every day it would be (num digits=3) days; 50% would be (num binary digits=8). Not sure how to interpret 10%

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Surprisingly, @wacnt even answer this. twitter.com/skooooch/statu…

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In reply to @ben_nuttall

@ben_nuttall crikey, that is a terribly-made argument. What's the version of mansplaining where they throw a bunch of clever-sounding words?

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In reply to @CardColm

@CardColm familiar acronyms that can be pronounced as words are written in mixed case

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In reply to @stecks

@stecks #chiasmusgoals

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Professional mathematicians: would you like to tell me about the maths you do, for a new podcast idea, and are you free tomorrow?

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For about an hour between 9am and 4pm GMT twitter.com/p3d40/status/8…

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In reply to @elcaborotativo

@elcaborotativo ooh, that sounds interesting! Would you be able to talk me through a favourite paper or result?

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I may have bullied the uni library into making a more physically plausible paper snowflake. #pedantrygoals twitter.com/nclroblib/stat…

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Just registered christianperfect.com. On the checkout it also offered me christianflawless.com and now I'm sad about my boring name

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In reply to @peterrowlett

@peterrowlett it's alright, if you just integrate over the cracks then you can recover the... oh no, Green's theorem isn't that magic, soz

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I noticed this when I was little but I've never wondered why it happens. So interesting! twitter.com/MouldS/status/…

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Boaty McBoatface pipped at the last minute to the 2016 best comedy public vehicle name crown twitter.com/ProfFalken/sta…

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In reply to @peterrowlett

@peterrowlett I can see that happening to me. Note to self: don't have a daughter

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@efrataitel further up in the thread from that quoted tweet: makeitatyourlibrary.org/play/6-pointed…

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While googling to find if this was a photo of a PPE in PPE, I discovered that Osborne's degree was *Modern History*. And he was chancellor! twitter.com/UniofNewcastle…

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No good philosophy ever came out of stating an absolute twitter.com/aPaulTaylor/st…

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Today I am fighting with one of the two hard problems in computer science: cache invalidation. #dnsfail

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In reply to @nrichmaths

@nrichmaths my mum's just forwarded me your advent calendar (nrich.maths.org/12956) and everything's clickable except 16

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In reply to @standupmaths

@standupmaths @AEOUD is tomorrow sold-out because you used up so many wristbands showing off topology?

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Taylor and Francis want £31 for 24 hours' access to this paper, which might as well just be a blog post tandfonline.com/doi/full/10.10…

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In reply to @christianp

Interestingly, the article I originally wanted tandfonline.com/doi/abs/10.108… also tries to charge but it's marked as "editor's choice free access"

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In reply to @christianp

So if you go to it via explore.tandfonline.com/page/est/tmaa-…, a cookie is set which makes it just show you the full article. That's so shady!

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In reply to @bowenkerins

@bowenkerins @j_lanier @DavidKButlerUoA calculating the expected number of rolls can lead you to some helpful maths: oeis.org/A064168

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In reply to @DavidKButlerUoA

@DavidKButlerUoA sounds like something you might visit a physiotherapist for help with

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Reasons google music would put track 6 at the top of an album, even though every track is correctly tagged:

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My old blog is now sort of static checkmyworking.com/2016/11/this-s…

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In reply to @matthen2

@matthen2 why does the text slide away?

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In reply to @matthen2

@matthen2 could the torch continuously follow my view when I hold the button down?

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I should program some known-prime big numbers into isthisprime: isthisprime.com/12345678910987… twitter.com/pickover/statu…

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In reply to @christianp

and/or look up some of the more clever algorithms for proving primality in some big numbers

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A bit of wikipediaing later, I can now be sure about primality up to 25 digits, so isthisprime.com/12345678910987…

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In reply to @lunasorcery

@willkirkby @MathsJam several people at mathsjam don't like being recorded, so might be best to put that behind a password

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In reply to @christianp

@willkirkby having said that, would your dad mind if I pinched steve.kirk.by/data/mjc2016/_… ?

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In reply to @walkingrandomly

@walkingrandomly open source in action: after clicking on that link, I've submitted a PR to cicero.xyz: github.com/bast/cicero/pu…

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In reply to @OnThisWeeksEpi

@OnThisWeeksEpi I'm not sure how I feel about "promo'ed" as an abbreviation.

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@efrataitel about 3.5% of odd numbers under 10^25 are prime, so you're pretty safe just saying "not prime".

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Trying to imagine someone who would buy this t-shirt: spreadshirt.co.uk/i+know+html+3+…
I like to think if I saw them I'd sit them down for a chat

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Here's a problem: how does a REST API prove it's serving the API you think it is? Serve some unique shared information on a particular URL?

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In reply to @aperfect

@aperfect static site generator

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There are no prime number days left in 2016! The last one was the 3rd of November (20161103 is prime). Next is 21st of January (20170121)

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😢 twitter.com/RealityMinus3/…

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In reply to @Mathistopheles

@Mathistopheles ooh, a very long time. prob(n prime) is still 1% at around 10^43, so unlikely!

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My guess: a long time, longer than even the Long Now foundation can wait twitter.com/Mathistopheles…

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In reply to @Mathistopheles

@Mathistopheles oh, of course!

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In reply to @Mathistopheles

@Mathistopheles can you see how to extend the curves? Wikipedia gives big-O notation for Cramér and I can't understand Firoozbakht

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The universe is 8-bit twitter.com/poveryant/stat…

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In reply to @stecks

@stecks but at least we've learnt there's no bijection between the naturals and the set of all sex styles (or did we already know that?)

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My birthday will never be a prime in ISO format, but if I make it to 53 (a prime!), 14012039 is prime.

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In reply to @icecolbeveridge

@icecolbeveridge ooh, that is nice!

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I feel this may be too esoteric a hook for an Amazon Prime promotion. twitter.com/ProfSmudge/sta…

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@efrataitel are you 12 right now?!

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!!! twitter.com/poveryant/stat…

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December

In reply to @mscroggs

@mscroggs this is how the calendar looks to my protanomalous eyes. Are the numbers more legible for you?

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In reply to @mscroggs

@mscroggs yes, much better

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In reply to @mscroggs

@mscroggs ... although it makes finding today's door very easy

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In reply to @mscroggs

@mscroggs blurring the background helps a lot: codepen.io/christianp/pen…

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In reply to @pkrautz

@pkrautz what did I do wrong?

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In reply to @pkrautz

@pkrautz at what URL?

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In reply to @pkrautz

@pkrautz fixed!

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In reply to @pkrautz

@pkrautz wha?

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In reply to @pkrautz

@pkrautz it's only searching titles. Search is hard.

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In reply to @christianp

@pkrautz oh no, it is searching the body, just 'cm' and 'bright' don't appear in the blog post.

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Lots of false positives in my gmail spam folder. One because it's "in a different language to the one I normally use" - philistines!

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Superposition: on visiting a new journal publisher's site, open both PDF and "rich HTML" versions of a paper, in case the HTML's any good

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In reply to @christianp

the HTML version is almost never any good

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If I send one more tweet after this and lose 45 followers, I'll have 10 times as many tweets as followers. Calibrating offendometer...

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I am now Edgaware. Thank you. twitter.com/ColinTheMathmo…

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In reply to @DavidB52s

@DavidB52s @sxpmaths @suedepom I also think it's a geometric sequence. Just a rubbish one.

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VEXED IS ON NETFLIX!!!!!

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Nice! This game keeps getting more and more stuff twitter.com/ZenoRogue/stat…

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Is it only my sky-high self-esteem that lets me make pull requests to repos I've just discovered on github?

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In reply to @christianp

or is it my unreasonable optimism about other people?

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In reply to @FOTSN

@FOTSN it's now my mission in life to own those bowls

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Naters gonna nate.

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In reply to @C_J_Smith

@C_J_Smith what is 'abalability' please?

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In reply to @Eclectotype

@SchizotypeFonts @ben_nuttall bad, because it's not clear how many keypresses it should take to delete or move through them

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Why is it still possible to so completely trash Ubuntu by using too much memory? Is there something I should change with the swapfile?

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Parayellowgram (n): a quadrilateral with two pairs of parallel sides, made of custard.

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Here's a controversial starter for the day: to what extent is % a unit symbol?

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CLP SMASH UNDECORATED RED INLINE LINKS

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In reply to @RobJLow

@RobJLow how does sitcking a % on the end of a number differ from sticking 'cm' on?

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In reply to @RobJLow

@RobJLow yep. But it changes the meaning of a number in some other way, while acting a lot like a unit

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Next question: when does % vanish? Sometimes '4 times 20%' is '0.8', sometimes it's '80%'. What about '40 times 20%'?

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In reply to @ElzbthMcCrthy

@ElzbthMcCrthy uh huh... but sometimes after multiplying a percentage you're still talking about percentages, and sometimes not

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I'd say radians are a little bit more unit-y than percentages - they stick around longer twitter.com/icecolbeveridg…

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Yes. But my problem is I'm trying to get my computer to understand what a student means when they write a % symbol twitter.com/LucasVB/status…

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In reply to @MB_Whitworth

@MB_Whitworth @alexbellos I assumed guessing the side lengths would lead me down the wrong path. And the other way is so neat!

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In reply to @christianp

@MB_Whitworth @alexbellos it's also the same basic idea as used to solve the next question, with multiplication instead of addition

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In reply to @RobJLow

@RobJLow I'm trying to establish what's the best guess it can make

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In reply to @RobJLow

@RobJLow alas, this is e-assessment software, so the whole point is that I expect students to get things wrong!

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In reply to @jamestanton

@jamestanton no: N smallest for given p+q when p=1 & N=2^q. Then require q^2+1 = 2^(2q). False for all q>1.

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In reply to @pkrautz

@pkrautz the "improper" listings on that page are basically a list of everything I need to be able to handle

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This map is so detailed! What was the sample size? twitter.com/onlmaps/status…

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@jsreed5 Napier did it the hard way: en.wikipedia.org/wiki/History_o…

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In reply to @tweetsauce

@tweetsauce every digit of π: three.onefouronefivenine.com

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SO NICE twitter.com/alisonmartin57…

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In reply to @UKMathsTrust

@UKMathsTrust how long did you spend trying to make B=8 before giving up?

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A maths gallery with no equations is like a sausage factory with no pigs. theguardian.com/science/alexs-…

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In reply to @DavidKButlerUoA

@DavidKButlerUoA or wax the back of your hand. Whichever's easiest.

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Playing about with R for the first time. Whoopsy:

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In reply to @christianp

Given what happened before, I wasn't expecting this to also quit R:

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Something's wrong with the pigeonhole principle: this pack of 6 cans and this pack of 5 packets of crisps lasted the same amount of time

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This is a strong lead. Investigating. twitter.com/ajk_44/status/…

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In reply to @chalkdustmag

@chalkdustmag @televisionduck you mean there's an English version of Tiny Set?! I've wasted so many euros!

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In reply to @LauriLoveX

@LauriLoveX as god is my witness, I thought I'd overridden the built-in q function.

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In reply to @evelynjlamb

@evelynjlamb Paris! That's a bit closer to me than utah! 👍

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People who think -2 (or even 0) is not a whole number: what should the text "round your answer to the nearest whole number" be instead?

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In reply to @christianp

i.e., I want you to round -2.3 to -2, and -2.7 to -3.

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In reply to @icecolbeveridge

@icecolbeveridge but what about kids who don't know 'integer'? Is this a losing battle?

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Am I on the right side of history by saying 'whole number' is a synonym for 'integer'? If kid rounds -2.3 to 1, they learn a valuable lesson

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Sometimes the test is on how to round, but you need to clearly specify what you want, assuming they know the process. twitter.com/icecolbeveridg…

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In reply to @icecolbeveridge

@icecolbeveridge ooh, citation? I assume this is 'nombre entier'

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In reply to @icecolbeveridge

@icecolbeveridge I see MathWorld falls squarely on the 'negatives are not whole' side of the fence

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I once received an envelope with the text "Open now and free a bear!" I feel the same way about this tweet as I did about that. twitter.com/plusmathsorg/s…

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Swansea University's email system just rejected a message because it contained a link.
A bit over-eager, that.

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This is relevant to all of my interests: readingeuclid.org/printing-eucli…

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In reply to @eAssess

@eAssess the last paragraph of that is the correct interpretation. If you were guessing people's exact heights, you'd get 0% correct.

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Thinking of constructing a puzzle which can be solved by misapplying rules of arithmetic, like, 6/3-5 = 6/(3-5)

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In reply to @christianp

maybe it could be a derivation full of absolutely filthy tricks and abuses of notation, all but one of which produce the correct answer

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In reply to @natluurtsema

@natluurtsema @finaldraftinc looks like you're out of luck, according to this help page kb.finaldraft.com/article/1001/4…

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[citation needed]

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!!!!!

teespring.com/en-GB/falalala…

7 favourites 7 retweets

In reply to @standupmaths

@standupmaths because the range of answers to "Where's Wally" exemplifies the distinction between "correct" and "precise"

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Inside of my water bottle or wormhole to a parallel existence?

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The things to find on my where's wally advent calendar are getting easier each day. Today's is rubbish!

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In reply to @amqnerd

@amqnerd @MathsJam there isn't, and it's a bit moribund at the mo. If you're interested, email newcastle@mathsjam.com

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In reply to @alisonkiddle

@ajk_44 I think the last one - you can make about 10^2000 resources before you hit IE's URL length limit stackoverflow.com/questions/4171…

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It's the 13th of December and I've only just walked past fenwicks window for the first time. When did I become a grown up?

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In reply to @amqnerd

@amqnerd are you a student at Newcastle Uni?

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I am the Christian filling in a Chris-to-Chris email sandwich. #toomanychrises #2chris2furious

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In reply to @chalkdustmag

@chalkdustmag thanks for the christmas card!

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In reply to @CounterOfSheep

@ajkiddle @samholloway word on the street is it's not that great this year

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In reply to @christianp

@chalkdustmag mind if I colour it in red and blue? My protanomalous eyes won't cope well with red/green

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Well, after 13 days of decreasing challenge they've given up. I can't imagine how tomorrow's will be any easier. "Find the advent calendar"?

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Christmas cards

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In reply to @MathJax

@MathJax can it really be that mathjax runs a regex every time it computes a length? How is that fast?! github.com/mathjax/MathJa…

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In reply to @christianp

@MathJax (I may have misunderstood how often that function is used)

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In reply to @MathJax

@MathJax I'm working towards what will either be a confused email to mathjax-dev or a change to my own code

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In reply to @chalkdustmag

@chalkdustmag @mscroggs ruddy scroggs making me remember first-year number theory facts....

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+1 twitter.com/chris_fairless…

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Christmas cards: likes that cost upwards of a pound a pop

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In reply to @robinhouston

@robinhouston underestimating hacker news commentators is not an easy game

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If anyone asks what I do all day, I'll say "oh, I main args" twitter.com/dan_abramov/st…

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In reply to @ColinTheMathmo

@ColinTheMathmo are they papers that I might have access to by other means?

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I didn't know I needed snow-clearing bhangra dudes in my life twitter.com/asifintoronto/…

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Day 1 of working from home going really well: outlook in office 365 seems to be down

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In reply to @ChrisColden

@ChrisColden I assume so. I got into the web version a few minutes after sending that tweet

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In reply to @tim_hunt

@tim_hunt I make files starting with dots all the time on windows. Does he mean in explorer?

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Need to say this somewhere other than a reply to the email I just got: you can't have a linear relationship with categorical data!

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Day 2 of working from home: I have a stinking cold 🤒

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In reply to @walkingrandomly

@walkingrandomly is it just me who says 'stinking cold'? I don't know why I say it, and it makes no sense

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The dog has begun her rendition of the greatest epic poem in dog literature: The Ballad of You Are Cooking A Ham In The Oven And I Want Some

8 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge Math Teachers Hate This One Really Obtuse Analysis Fact

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In reply to @stecks

@stecks I could make a python script which makes a magic folder where that happens

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In reply to @evelynjlamb

@evelynjlamb it's incomplete: there's no Rue Gödel!

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I've got an unnecessarily complicated christmas wordsearch in this month's Puzzlebomb twitter.com/aperiodical/st…

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Cor, tables are an absolute knacker to write in reST

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"I want biccies."
"BICCIES FOR CP!" I bellow, to an empty house.

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And with that, my Christmas holiday begins. Code written in haste and deployed before you go away for a fortnight is good code, right? twitter.com/NclNumbas/stat…

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For the past week I've been hooked on a stupid game and I've just pulled off an incredible victory you need to see generals.io/replays/rcuk1s…

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In reply to @christianp

"need to see" is the opposite of the actual situation

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while I was pretending to do a PhD, I'd add plain English explanations after fiddly bits of maths, and my supervisor made me remove them. twitter.com/carolynz/statu…

3 favourites 2 retweets

In reply to @outofthenorm2

@outofthenorm2 I'd love to see those

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In reply to @ColinTheMathmo

@ColinTheMathmo that makes me sad

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Rocking my most mathematical Christmas jumper. Guess the theorem!

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In reply to @rmehigan

@rmehigan where's the fibonacci?

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A++ very cheeky monkey twitter.com/CardColm/statu…

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#realparsnips #stopparsnipshaming

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"Why are there Muppets?" my wife asks.
Before deciding how to answer, I make a mental note to look up a marriage counsellor

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In reply to @outofthenorm2

@outofthenorm2 we were trying to remember if we'd reviewed it, and that's reminded me we stuck it in a not mentioned post!

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In reply to @ColinTheMathmo

@ColinTheMathmo lagrange's theorem? Can at least communicate the gist with some symmetry groups

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In reply to @ColinTheMathmo

@ColinTheMathmo haven't got it to hand, but might "proofs from the book" contain some good results?

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In reply to @outofthenorm2

@outofthenorm2 @stecks yeah, new covers and looks like either 10 or 20 more books, depending on if they come up with titles for 51-60

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In reply to @ColinTheMathmo

@ColinTheMathmo did you see our post on good books for a 14 year​ old a while ago?

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In reply to @jgrahamc

@jgrahamc this no-semicolons JS fad has gone too far

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In reply to @robotmaths

@AdamCreen @icecolbeveridge @mathsjem that looks like £9.99 per book to me

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Turns out the dog's favourite Christmas movie is Love Actually. Currently at the bit where Emma Thompson is sad. Dog is so emosh

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Today's notation thought, inspired by a tweet I saw: should 'thousands' be written '1000s' or '000s'? (Which is best, not which is correct)

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I've given my Interesting Esoterica collection a bit of a zhuzh read.somethingorotherwhatever.com

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In reply to @peterrowlett

@peterrowlett @icecolbeveridge exactly!

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2017

January

Some fascinating fluid dynamics on the beach this morning, like a level from tomb raider

3 favourites 1 retweet

Oh no no no. There are too many squares! twitter.com/LinaresFreire/…

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Today's confusion: the sofa shop's website doesn't list all the sofas they sell, but does list some colours they don't sell any more 😕

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This is very relevant to my interests! twitter.com/Parcly_Taxel/s…

1 favourite 1 retweet

Idea: a course in Algebra, in puns. From "why is 6 afraid of 7" to "why can't you grow wheat in ℤ₆"

13 favourites 2 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I think I can remember seeing this a while ago. First link on google is arstechnica.co.uk/security/2016/… from October

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Thanks to @mathematish for spotting a tiny but important transposition typo in the explanation page for three.onefouronefivenine.com

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Registering with a new GP, some inadvertent information about the frequencies of different first letters in surnames

3 favourites 0 retweets

In reply to @christianp

@christianp later on the same form: I have several marvellous disabilities, but this line is too small to describe them

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A step from an automatic tutoring system which will remain nameless. This isn't OK, is it? Even if you don't have much space to explain

12 favourites 3 retweets

Because I haven't looked at it in depth yet, and because I make some software in the same arena, so I know how hard it is twitter.com/odtorium/statu…

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In reply to @odtorson

@odtorium I mean, yes, but if I'm going to complain about it I'd like to do it somewhere with more room than twitter

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In reply to @christianp

@christianp WHOAH WHOAH whoah - this is even less OK!

1 favourite 3 retweets

In reply to @RobJLow

@RobJLow yes: a-level is when kids should start asking all sorts of hard questions about what numbers are and treating ∞ as one doesn't help

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In reply to @DavidB52s

@DavidB52s built-in. In fact, it's the demo question on their front page. It's a series of steps, with multiple choice responses

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In reply to @RobJLow

@RobJLow STEP

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Gladly! twitter.com/ajk_44/status/…

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 could you dm me more info?

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In reply to @JanvierUK

@JanvierUK happy birthday!

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Pierre Py seems to have invented the word 'cubulable', which sounds like an underwater fart. via @NewtonInstitute newton.ac.uk/seminar/201701…

1 favourite 0 retweets

In reply to @Gelada

@Gelada is the glass an aperiodic tiling with two shapes?

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In reply to @jumping_uk

@riversjumping @csgillespie a typo on the front page, under Jamie's pic: "He has ran"

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Is there a word for the reciprocal of a lakh? I want a prefix in between milli- and micro-

1 favourite 1 retweet

Well done, IE, that's exactly what I was trying to do

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Just spotted @NclNumbas was mentioned in TUGboat: researchgate.net/profile/Sabri_…. Nice!

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In reply to @icecolbeveridge

@icecolbeveridge 10 minutes in the sin-bin, Beveridge.

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In reply to @icecolbeveridge

@icecolbeveridge the only Scottish maths/football pun I will accept is "East Fife 4, Forfar 5"

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Maths teachers! Do you put homework online? Do you have an online learning environment? Commercial product like mymaths? @mathsjem

8 favourites 5 retweets

@Whiteman_Maths what's your VLE?

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In reply to @jjaron

@jjaron but some systems are objectively worse than others, so progress can be made

1 favourite 0 retweets

In reply to @mathsjem

@mathsjem do you know who makes the portal?

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My secondary school online homework findings: overwhelmingly commercial prods, very self-contained. No evidence of open source alternative

1 favourite 2 retweets

In reply to @christianp

Schools don't have resources to set things up themselves, so buy in, & one big contract is easier than getting several to work together

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In reply to @christianp

So: is it a fool's errand for us to offer something based on Numbas as a free/cheap tool? Would it be unusable for institutional reasons?

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In reply to @icecolbeveridge

@icecolbeveridge thanks! I suppose something for tutors to use would be good - I've wanted Numbas while helping friends' kids in the past

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In reply to @singinghedgehog

@singinghedgehog yes, that's my fear

1 favourite 0 retweets

In reply to @christianp

Supplementary question: what format would a tool need to output marks to go into your other systems? Is entering marks by hand a big deal?

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In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful it's my (probably last) Mersenne prime-th birthday on Saturday

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In reply to @jamestanton

@jamestanton nice one: I started up python notebook, and while it was getting ready I worked out the answer on paper

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it's far too easy to fill a jupyter notebook with a billion lines of output, crashing your browser

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Has anyone else had the idea of importing sugar from Denmark, calling it 'shygge', and cashing in big time on that inane trend?

2 favourites 0 retweets

In reply to @jam3s_hollow

@jam3s_hollow I'm not a natural pessimist, but I don't think I'll reach that

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In reply to @icecolbeveridge

@icecolbeveridge the torygraph puts out these kind of nonsense items fairly regularly

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NO WAY! They've got blackboard fever! And the only cure is... CHALK twitter.com/BrunoDuchesne/…

2 favourites 0 retweets

In reply to @lukepearce85

@discoverymaths @peterrowlett

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In reply to @icecolbeveridge

@icecolbeveridge @asda a sieve you can write with? I'll take 5!

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In reply to @itabn_andrew

@itabn_andrew I get an error on this page: isthatabignumber.com/fact/populatio…
(turn off debug!)

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In reply to @stecks

@stecks a pencil. It only works if it's a pencil.

1 favourite 0 retweets

What is this future? I feel queasy. twitter.com/samholloway/st…

2 favourites 1 retweet

In reply to @Mathematical_A

@Mathematical_A 18% of what? Total adverts?

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♫ I'm dreaming of a white Christiansmas ♫

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In reply to @FryRsquared

@FryRsquared congratulations!

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Happy Christiansmas! My wife gave me these v. genteel bowls 👌

3 favourites 0 retweets

I didn't quite make it out! twitter.com/FactsOfMath/st…

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In reply to @CarshaltonHigh

@CarshaltonHigh unless I'm missing something, I can do it with just 1

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In reply to @peterrowlett

@peterrowlett @DavidKButlerUoA @cass_lowry I've been trying to make mathmo more widespread. Meaning can evolve!

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In reply to @CarshaltonHigh

@CarshaltonHigh on refelection, it's harder to do it by removing 3, so that's the puzzle, isn't it?

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett err... unicode decoding error, Peter?

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett I thought Peter was the Alfred to little Ben's Batman

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In reply to @timstirrup

@timstirrup there's a column for the sum of the digits in the product! Can't imagine what trick they'd be taught using that

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In reply to @christianp

@timstirrup oh no, I've looked more closely and it's the value mod 9. Now I get it

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In reply to @monsoon0

@monsoon0 oof, that's far too hot! You're in the right place

1 favourite 0 retweets

The water bottle I've just ordered from Amazon is labelled "unisex". Struggling to imagine a water bottle that isn't that.

2 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep new business idea: fluids for the genderfluid

1 favourite 0 retweets

Eduroam at ICMS is surprisingly slow. The dozens of other people on laptops in this lecture theatre might have something to do with that.

1 favourite 0 retweets

In reply to @christianp

whoah, passive-aggressively tweeting about it made it 10 times faster!

2 favourites 0 retweets

In reply to @monsoon0

@monsoon0 not at ICMS, but I'm in Edinburgh next Thursday, and again some undecided day in the next fortnight

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In reply to @walkingrandomly

@walkingrandomly I'm back to work now, but hope to do an hour or two on the interactions site, especially merging @rgaiacs's PR, today

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths you want the moon (correctly aligned with respect to) a stick, you do

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Just discovered that the a11y project has a very good and easy to understand accessibility checklist for web pages: a11yproject.com/checklist.html

1 favourite 1 retweet

In reply to @evelynjlamb

@evelynjlamb did this site steal your post? studyscorecalc.com/2015/09/07/the…

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please stay that way please stay that way please

8 favourites 2 retweets

Oh, I forgot to tweet this in the morning: happy first ISO-prime day of 2017! isthisprime.com/20170121

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I've never liked Fermi questions, but this might get me hooked: fermiquestions.com/play

8 favourites 2 retweets

In reply to @christianp

... having tried a few questions: nope, still don't like Fermi quesions

0 favourites 1 retweet

The amazon frontpage tells me I've been a member for more than half my life. This still feels like the future though

2 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow one of the big realisations of my life was that there's a state of mind where your brain insists it wants to work, but can't

1 favourite 0 retweets

Turns out a large part of maintaining an open source project is helping people learn git. Happy to do it! github.com/numbas/Numbas/…

4 favourites 5 retweets

In reply to @christianp

@HilariousCow I was in that state of mind yesterday. I played some mindless games while listening to podcasts, then did some house work

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I like this trick. It needs a name. I did something similar with counting negative objects in a room recently

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In reply to @icecolbeveridge

@icecolbeveridge #unnecessaryperthburn

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It's 10:30am and I want food. I've been at work for three hours, so I'm in the same relative state as a 9-5er who eats at midday, right?

1 favourite 0 retweets

Kudos to Cadbury for using a more seasonal symmetry group on their winter edition chocolate

6 favourites 3 retweets

In reply to @christianp

on reflection (ha!), it's less seasonal than I thought: it's just the frieze pattern pm en.wikipedia.org/wiki/Wallpaper…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge minusaur

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/^_^/ is both a jolly face and a regex that matches nothing. I propose it as the official smiley of nonconformists everywhere

11 favourites 9 retweets

In reply to @icecolbeveridge

@icecolbeveridge I almost said "it's the piano keyboard tie of regular expressions"

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Just plucked a hair out of my nose that must have been directly connected to the middle of my spinal cord. 😭

1 favourite 0 retweets

How come issue numbers in the titles of GitHub pull requests don't get linkified?

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My teacher wife has to do observations on an iPad, but can't get wifi at forest school, ~20m from classroom. Is there an easy wifi extender?

1 favourite 0 retweets

In reply to @christianp

Difficulty: it's a PFI school, so who knows what the rules are about plugging things in

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In reply to @chris_a_wagner

@chris_a_wagner go back

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In reply to @pkrautz

@pkrautz could just be on PR pages. They already do it elsewhere, e.g. usernames are linked inside commit messages github.com/numbas/Numbas/…

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We're always told scare stories about people moving the decimal place in dosage calculations. This happened a bit too close to home! twitter.com/michaeljgrove/…

1 favourite 0 retweets

Eee! Lovely birthday bowls from @aperfect!

2 favourites 0 retweets

Can I stretch Christiansmas out to a full month this year? It began on the 7th twitter.com/stecks/status/…

1 favourite 0 retweets

I'm not in Newcastle any more: this audience in Edinburgh has asked for the heating to be turned up. (Not my fault: I'm not talking yet!)

0 favourites 0 retweets

In reply to @MouldS

@MouldS easily solved: set up some rails traversing the room around hip height, and suspend the radiator from them, Nemesis-style

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As my phone's battery sputters its last once more, I'm more confident than ever that m-tickets are a terrible idea.

2 favourites 1 retweet

Yet again, I've trashed my PC by picking a foolishly large upper bound for a range in a jupyter notebook.

0 favourites 0 retweets

In reply to @CardColm

@CardColm I discovered that book by walking past Zamyatin's blue plaque in Newcastle. Apparently he lived there for a while!

1 favourite 2 retweets

Two questions:
1) what's a salad sandwich
2) have you ever eaten one

1 favourite 0 retweets

Rewriting War and Peace as a kids' picture book.
"Is there meaning here, in the army?" Pierre asked.
"No, this army is meaningless too."

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In reply to @christianp

"Is there meaning *here*, in the Freemasons?" Pierre asked.
"No, fraternal society is meaningless too."

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Is there a single verb for the act of blowing your nose? Like, 'exsnotulation'? @HaggardHawks, do you know one?

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Explaining to the dog the concept of going to the beach without a ball and just for a walk

1 favourite 0 retweets

I've just joined mastodon.social, because maybe it'll end up better than twitter: mastodon.social/users/christia…

2 favourites 0 retweets

Yes, that does work! twitter.com/HaggardHawks/s…

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#thatsthepoint twitter.com/BBCBreaking/st…

3 favourites 0 retweets

PyLint really doesn't like my code!

5 favourites 0 retweets

In reply to @christianp

PyLint and I are friends again

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge some warnings I disagree with but don't want to disable, in case they pop up elsewhere

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In reply to @icecolbeveridge

@icecolbeveridge huh?

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Today I am using R. It is mental. It's like someone took "PHP is a fractal of bad design" as an art prompt

10 favourites 2 retweets

In reply to @christianp

yes, I'm not used to its way of thinking and yes, you're very productive with it, but please don't defend `regmatches`

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This is causing #figgorative #explosions in my mind twitter.com/USGSVolcanoes/…

1 favourite 0 retweets

February

In reply to @MEIMaths

@MEIMaths what on earth did you use to make that image? And how come you don't use @MathJax? Here's a nicer version: checkmyworking.com/misc/makebigma…

1 favourite 0 retweets

I make no bones about the fact that `touch poo` is a fantastic thing to type into a terminal. Just tremendous. But what about `cat poo`?

4 favourites 1 retweet

In reply to @evelynjlamb

@evelynjlamb @elcaborotativo I planned on taking a photo of that when I was there last summer, but we took the dog to phoenix park instead

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In reply to @haggismaths

@haggismaths 😨

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oh goddddddd

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In reply to @walkingrandomly

@walkingrandomly sadly, there seem to be quite a few of his followers there

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Today: looking for just the right monad

0 favourites 0 retweets

In reply to @NewtonInstitute

@NewtonInstitute that sculpture's lovely, but what's it got to do with Fibonacci?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I have an "organise EAMS 2018" item on my to-do list. Yuck.

0 favourites 0 retweets

In reply to @panlepan

@panlepan have a look for William Dampier: scientist, and pirate!

1 favourite 0 retweets

The clothes caterpeuler diagram has had a significant upgrade, thanks to my unendingly patient wife, whom I don't deserve

3 favourites 0 retweets

Tried to tell my wife a bedtime story, but it was too intellectually stimulating. We abandoned after 2 minutes and the 3rd science question

2 favourites 0 retweets

In reply to @robinhouston

@robinhouston yes, through this library github.com/cosmologicon/U…

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Finding lots of goodies on arxivist.com - like last.fm for the arXiv!

6 favourites 4 retweets

In reply to @jamestanton

@jamestanton that's midnight here. Why is the recording only for people who join the livestream?

0 favourites 1 retweet

Am I missing something, or does this middle school maths question ask for some quite sophisticated insight into semantics?

4 favourites 1 retweet

In reply to @davidwees

@davidwees I'm not sure it's even correct pedantry: the second option is true, it just doesn't say anything about how they chose

1 favourite 0 retweets

OK, consensus is the question is wrong. Carry on about your business. twitter.com/christianp/sta…

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!!!!!!!!!!!!!!!!!! twitter.com/BrendanArmagh/…

1 favourite 2 retweets

We have a winner! Turns out the numbers are randomised. A second run has "2 students chose the 1", catching exactly this error twitter.com/aPaulTaylor/st…

1 favourite 0 retweets

In reply to @shahlock

@shahlock do you want "the Xs represent ..." prepended to each option?

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#examtechnique twitter.com/efrataitel/sta…

2 favourites 0 retweets

In reply to @RobJLow

@RobJLow @BrendanArmagh fortunately for all of us, inability to understand Cantor's diagonalisation is not hereditary

2 favourites 0 retweets

Pick 1000 integers. Integer n is picked uniformly from the range (0,n). What's the mode? Mean? Can you describe the whole distribution?

2 favourites 0 retweets

In reply to @RobJLow

@RobJLow oh, yes! Just thought about it a bit more.

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In reply to @RobJLow

@RobJLow yes, I don't mean diagonalisation. I mean the classic bijection

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In reply to @p3d40

@p3d40 you pick

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge no, nth integer is picked from (0,n)

1 favourite 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor MLEs for both

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc done and done etsy.com/listing/213778…

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In reply to @christianp

@jgrahamc or this rather fetching set sueper-store.de/product/planet…

2 favourites 1 retweet

if you're a terrible person, it's easy to accidentally make the same point as the actual nazis twitter.com/krautreporter/…

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People interested in maths e-assessment: I've been doing some nice work with scripted marking algorithms: github.com/christianp/mar…

1 favourite 1 retweet

In reply to @ben_nuttall

@ben_nuttall I envy your pepper plant. Must be those warm southern climes

0 favourites 0 retweets

I get to add Karl-Mikael Perfekt to my list of Perfects-working-in-pure-maths, yeah? ntnu.edu/employees/karl…
All-time list now has 3 people!

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Whichever brilliant architect put my building's ventilation inlet at ground level clearly didn't mind a good lungful of cigarette smoke

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor now you just need to order packages on ~100 different days, and establish how soon you can make a 95% confident prediction

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Exponential notation: 2.2e-3 = 0.0022.

2.2e-3 is given to 2 sig. figs. But how many decimal places?

1 favourite 0 retweets

In reply to @NextLevelMaths

@NextLevelMaths I think you mean 5, but yes, that's the argument we came up with

0 favourites 0 retweets

In reply to @christianp

@NextLevelMaths nope, you're right! off-by-one error by me

1 favourite 0 retweets

In reply to @walkingrandomly

@walkingrandomly cheeky @FOTSN mug in the background there

2 favourites 0 retweets

In reply to @FOTSN

@FOTSN scandal!

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN are those... biscuits of constant width?

0 favourites 0 retweets

In reply to @thinusp

@thinusp @mathsjampta I need to make another trip to Pretoria. Last time I was there on MathsJam night, protests prevented fun maths

0 favourites 0 retweets

In reply to @mathsjampta

@mathsjampta not likely to happen for a long while - there's a hemisphere between us!

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I think today might be a two-lunch day

2 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall is holding on to your chin part of the process?

1 favourite 0 retweets

Yet again I find myself wanting a unary division symbol.

2 favourites 0 retweets

In reply to @paulscoombes

@paulscoombes no, ~x = 1/x

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow I did that at MathsJam a couple of years ago. It got a round of applause.

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow no more of a problem than the normal division operation

0 favourites 0 retweets

Just discovered you can long-press some icons on the Android homescreen (such as Twitter) to get a context menu. Not sure I'll ever use it

0 favourites 0 retweets

In reply to @JamesMoosh

@JamesMoosh I have a nexus 5x, so whatever the latest version is. N?

0 favourites 0 retweets

Do you suffer from vertigo?

4 favourites 4 retweets

This morning: coding in special cases all over the place to cope with `sin^2(x)`.

1 favourite 2 retweets

Can anyone find that letter Babbage wrote complaining about the inconsistency of sin^2 notation?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge champion!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge winner!

0 favourites 0 retweets

In reply to @christianp

Midday: removing all the special cases, retreating to Ice Fortress

0 favourites 0 retweets

Friends don't let friends use ambiguous notation twitter.com/ShemsiAlhaddad…

2 favourites 0 retweets

auuhh the current caller on the radio show I'm listening to repeats "yeah, yep" about 5 times every time she answers and it's driving me mad

0 favourites 0 retweets

Hah, the British Museum's 500 server error page has a picture of a broken pot from their collection on it

2 favourites 5 retweets

In reply to @alisonkiddle

@ajk_44 and their furry companion, Dimensionless Dog

3 favourites 0 retweets

So *that's* how @evelynjlamb writes so many good maths articles: she's gone full-time! Meanwhile, @aperiodical filling up with tumbleweeds

0 favourites 0 retweets

Roses are red
Violets are blue
People seem to be riffing on this poem today
Why not me too?

1 favourite 0 retweets

Approved. twitter.com/chris_fairless…

0 favourites 0 retweets

In reply to @mutedestro

@mutedestro @evelynjlamb @aperiodical if you find a tumbleweed with a non-trivial symmetry group, I'll write about it

0 favourites 0 retweets

Kurt Gödel
Always wore a girdle,
He was very insistent;
At the least, he was consistent.
#clerihew

1 favourite 2 retweets

@AndresCaicedo 🤢

1 favourite 0 retweets

In reply to @ChromeDevTools

@ChromeDevTools is there a key+click combo to set a conditional breakpoint on a line, rather than selecting from the context menu?

0 favourites 0 retweets

That's almost beautiful. twitter.com/mscroggs/statu…

4 favourites 0 retweets

It's aimed at school teachers, but this by @WorkEdgeChaos contains excellent advice for @NclNumbas question authors dropbox.com/s/ogis2bl8ib61…

3 favourites 5 retweets

@WorkEdgeChaos if it takes your fancy, I'd love your input on how Numbas could be adapted for use by schoolkids, eg. numbas.mathcentre.ac.uk/exam/4439/gcse…

0 favourites 0 retweets

@WorkEdgeChaos you need to follow me first!

0 favourites 0 retweets

guess who just got caught out by twitter now sometimes not showing the @ username at the start of a reply

0 favourites 0 retweets

Just discovered that Hip Hop by Hocus Pocus is ideal music to juggle to youtube.com/watch?v=-HSmnI…

0 favourites 0 retweets

In reply to @aperfect

@aperfect crikey!

0 favourites 0 retweets

A calculus problem: @cabinetmagazine is perennially late publishing, but I'm even slower at reading them. Solution: decrease d(cabinets)/dt

0 favourites 0 retweets

Man with van to move sofa is late - would put me at risk of missing joiner, if he wasn't also late. I may not entertain any tradesmen today!

0 favourites 0 retweets

Enormous bird terrorises Canary Wharf

2 favourites 0 retweets

#lifehack twitter.com/hollykrieger/s…

5 favourites 2 retweets

In reply to @AklMathsJam

@AklMathsJam did you manage to finish a game before running out of space?

0 favourites 0 retweets

If you fancy a bit of data analysis, or your students do, all the data from the "is this prime?" game is available: isthisprime.com/game/record.php

15 favourites 9 retweets

In reply to @Kevin_T_42

@kevin_tsang yes, you're probably one of the rogue lines in this plot. (see aperiodical.com/2016/05/are-yo…)

1 favourite 0 retweets

So you can tell them about the game, right? twitter.com/efrataitel/sta…

1 favourite 0 retweets

In reply to @scienceatlife

@scienceatlife the Bright Club event page says it's £4 per person, but the stand booking page says £5 + a £1 booking fee. What's going on?

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway yes

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @icecolbeveridge alas, Feynman was in a couple of films and has a Bacon number of 3

0 favourites 0 retweets

In reply to @samholloway

@samholloway wow, there's something I'd almost completely forgotten!

1 favourite 0 retweets

In reply to @scienceatlife

@scienceatlife awfully kind of you! Yes please

0 favourites 0 retweets

Off to Edinburgh for two days! Don't suppose any maths friends will be around for dinner tonight?

0 favourites 0 retweets

Just passed a bison! In Northumberland!

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow I recognise that feeling. Don't know a solution for it, but walking away from the problem for a while def helps

1 favourite 0 retweets

Good sentiment, but bad logic: keeping labour in Copeland probably won't save the hospital, since it won't change the government twitter.com/UKLabour/statu…

0 favourites 0 retweets

Does anyone else feel that the symmetry group of their wedding ring is bigger than it really is? I keep wanting to do a reflection

3 favourites 0 retweets

In reply to @robeastaway

@robeastaway ooh, I might start talking about my income and expenditure in £Hz. e.g. Netflix costs 2.85 £μHz

4 favourites 0 retweets

In reply to @robinhouston

@robinhouston is that rotations of a circle and a flip?

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston aha! I can never remember the names of those kinds of groups.

0 favourites 0 retweets

In reply to @Raspberry_Pi

@Raspberry_Pi I've just applied!

0 favourites 0 retweets

Wow, @OnThisWeeksEpi is written by actual geniuses

1 favourite 1 retweet

In reply to @OnThisWeeksEpi

@OnThisWeeksEpi oh wow, I thought it was a deliberate joke!

1 favourite 0 retweets

In reply to @OnThisWeeksEpi

@OnThisWeeksEpi @leafarbuthnot in 2017, nobody can blame you for assuming the worst

1 favourite 0 retweets

In reply to @SLSingh

@SLSingh I feel a strong compulsion to run that through photoshop's sharpen filter

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge

1 favourite 0 retweets

Today :something with a 1/3 chance of happening happened 10 times in a row. 😕😟

1 favourite 0 retweets

So what are the odds? I reckon 3^9 and 3^10 are both decent answers, depending on your interpretation of "something". twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow ... so?

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow yeah, I abused notation

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow maybe: roll a 3-sided die. I say "something a 1/3 chance of happening happened once" with probability: (?)

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow the difference is whether you're watching for a *particular* thing to happen 10 times, or any one thing with prob 1/3 to happen 10x

0 favourites 0 retweets

There must be some killer thermals above St James' Park today - I can see gulls circling up almost too high to see

1 favourite 0 retweets

In reply to @paulscoombes

@paulscoombes fairly sure, and the ones that are lower down are definitely gulls

0 favourites 0 retweets

What's the reasoning: two no-fault accidents where eejits drove into me in the past two years have increased my insurance quote by £70

0 favourites 0 retweets

In reply to @christianp

line of reasoning is that I'm more likely to have another accident, but if they recoup all their costs from 3rd party what's the difference?

0 favourites 0 retweets

So pretty! twitter.com/biscuit_factor…

1 favourite 0 retweets

In reply to @christianp

(if you're ever in the position of needing to buy my love, marbled paper is an all-access pass)

0 favourites 0 retweets

In reply to @JSEllenberg

@JSEllenberg often, a good debugging tool can help you inspect the whole state of the program. Nothing wrong with a good print though

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths yeah, but I couldn't find anything significantly cheaper, and the company I'm with *did* deal with aforementioned eejits well

1 favourite 0 retweets

In reply to @MEIMaths

@MEIMaths your wording was very slightly but crucially different: didn't say you only look at one side

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts @scienceatlife exciting, but I'm wary of being near that many inventive nerds on April Fools' day

1 favourite 0 retweets

In reply to @natluurtsema

@natluurtsema thank you! I was trying to remember that word earlier. A bit too late to look clever in front of my wife though

0 favourites 0 retweets

In reply to @STEMNewcastle

@STEMNewcastle if you'd used the link for the actual post instead of the whole blog, this tweet would still make sense in the future

0 favourites 0 retweets

My name is Christian and I have a hyperboloid addiction

3 favourites 3 retweets

@ladydpw I work 4 days a week and took a 20% pay cut, so maybe don't follow my example

0 favourites 0 retweets

In reply to @CardColm

@CardColm and that's why subtle phrasing doesn't work on twitter

0 favourites 1 retweet

March

What's the penalty if you do it while driving on the right-hand side of the road, in Germany, like the picture shows? twitter.com/transportgovuk…

8 favourites 10 retweets

In reply to @mscroggs

@mscroggs I am, alas, in that North. Anyway, I retired undefeated after the one I did attend. Hope it goes well!

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut oh no, that would leave me out of sorts for the rest of the week

0 favourites 0 retweets

I was expecting a combinatoric magic square with the broken edges, but it's just the arc lengths. Is the thing I imagined possible? twitter.com/_FutilityClose…

0 favourites 1 retweet

In reply to @pozorvlak

@pozorvlak that's exactly what's happening in that picture

0 favourites 0 retweets

In reply to @christianp

@pozorvlak (apart from "straight-edged", but the pattern of edges is the same in every plate)

0 favourites 0 retweets

Today: downloading WireShark to work out why my websockets have suddenly stopped working, because they are completely opaque

0 favourites 0 retweets

They've taken a pound off my all-time favourite retail pricing joke!

8 favourites 2 retweets

In reply to @Mrrismithmaths

@Mrrismithmaths en.m.wikipedia.org/wiki/800-pound…

1 favourite 0 retweets

YIKES! twitter.com/TTRockStars/st…

1 favourite 1 retweet

In reply to @SLSingh

@SLSingh there are a couple of images missing on your page of recommended maths books simonsingh.net/books/recommen…

0 favourites 0 retweets

If you'd never heard of a pie chart before, this *might* be an OK way of presenting this data. Still hard to pick out highest/lowest %s twitter.com/YouGov/status/…

1 favourite 2 retweets

In reply to @christianp

YouGov presents this "favourite X" data like this quite often. It's missing measures of how "controversial" each item is, and more

0 favourites 0 retweets

I've done some thinking about this graphic. twitter.com/aperiodical/st…

0 favourites 0 retweets

In reply to @christianp

*currently conceptualising the space of pizza topping combo preferences*

0 favourites 0 retweets

In reply to @LearningMaths

@LearningMaths no. It's because I'm concerned for the potential 33% of people who would have pineapple and olives together

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge this isn't an open-and-shut case for the #mathspolice - I think this one may go to tribunal

0 favourites 0 retweets

In reply to @mattsmithetc

@mattsmithetc would you like some thoughts about it beyond "it's not a pie chart"? aperiodical.com/2017/03/not-a-…

0 favourites 0 retweets

In reply to @aoibhinn_ni_s

@aoibhinn_ni_s @UCDMathStat @SFIdiscover We tried a few of the more unusual methods a couple of years ago: aperiodical.com/2015/03/video-…

1 favourite 0 retweets

Here's my take on that Lissajous curves thing people are doing codepen.io/christianp/ful…

1 favourite 0 retweets

@dannytybrown is that fifth point in the same plane as the other four?

0 favourites 0 retweets

In reply to @christianp

@dannytybrown in fact, there's no way the two pentagons can both be flat unless that point's in line with the other two, is there?

0 favourites 0 retweets

This is very relevant to my interests twitter.com/divbyzero/stat…

2 favourites 0 retweets

In reply to @numberphile

@numberphile has he managed to track down his half-brother, Terry Pi?

5 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths I've just realised this leads on to the Thue-Morse sequence. Nice!

0 favourites 0 retweets

Don't put your phone on top of an empty tupperware unless you want to think a cargo ship is blowing its foghorn at you when it vibrates

5 favourites 0 retweets

Such a lovely evening!

0 favourites 0 retweets

This is making me very uncomfortable! twitter.com/panlepan/statu…

1 favourite 0 retweets

Best one yet twitter.com/qntm/status/83…

14 favourites 15 retweets

Just rang plusnet support. They seem to be storing my password in plain text - asked for two characters from it. 😨

0 favourites 1 retweet

In reply to @plusnethelp

@plusnethelp nope, home phone and broadband

0 favourites 0 retweets

This morning: investigating Blackboard Test. Currently: no idea what to do with this error message

1 favourite 0 retweets

In reply to @christianp

BB test export stores MathML in an XML attribute by replacing <> with «» and double quotes with ¨ (that's a diaresis). WHAT COULD GO WRONG

0 favourites 0 retweets

In reply to @christianp

when you upload questions in their stupid plaintext format, they recommend "at most 500" questions, to avoid timeouts. WHO WROTE THIS?

0 favourites 0 retweets

In reply to @christianp

I assume more than one person was involved in designing and implementing this, so it's astonishing that none of them had heard of CDATA

0 favourites 0 retweets

In reply to @christianp

Adventures in Mindlessly Copying and Pasting: Blackboard Docs Edition

0 favourites 0 retweets

In reply to @christianp

I think whoever wrote this document got bored: none of the last 3 question types' descriptions come close to matching how they actually work

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @SparksMaths fancy meeting up after the show tomorrow? I'll be attending the afternoon show

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway @SparksMaths if you need some refreshment at half time, @NCLMathsStats is having a pi day bake sale

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful is it the bit where it sounds like your kids nick a motorbike?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA is that a frustrated frustrum?

3 favourites 0 retweets

In reply to @FOTSN

@FOTSN maybe they routinely go 10% over budget?

1 favourite 0 retweets

In reply to @My_Metro

@My_Metro can you give a link? Searching for "Metro" turns up lots of apps that aren't yours

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 or watch the digits scroll past at three.onefouronefivenine.com

2 favourites 2 retweets

Today is π Day. If you need a quick reminder of the digits, they're all at three.onefouronefivenine.com

469 favourites 195 retweets

In reply to @RobJLow

@RobJLow yes

0 favourites 0 retweets

In reply to @CDAXY

@CDAXY @aperiodical starts at digit 762 - the Feynman point!

6 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths I'm going to run back to my office to pick up my coat. Can we meet in the bar?

1 favourite 0 retweets

In reply to @_Stibar

@SystemBread @tweetsauce in the same order? No - otherwise, your could write it as a fraction. Proof of that is longer than a tweet

0 favourites 0 retweets

In reply to @BrandonDriscoll

@BrandonDriscoll @tweetsauce it's been there for two years already, so yes

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge love the ", PhD". So American!

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge (ps well done, that is a lovely cover, a masterpiece of the cumulonumbers form)

0 favourites 0 retweets

In reply to @rws91

@rws91 want to bet?

0 favourites 0 retweets

In reply to @rws91

@rws91 OK, show me where it ends

0 favourites 0 retweets

In reply to @rws91

@rws91 the site doesn't end either

0 favourites 0 retweets

Can anyone think of a reason why, in MS Word, copying a picture copies it scaled down, but "save as picture" keeps the original size?

1 favourite 0 retweets

In reply to @christianp

like, are there people who use Word to resize their pictures for them?

2 favourites 0 retweets

In reply to @moocowpong1

@moocowpong1 @SystemBread @tweetsauce ooh, not sure that's quite true. Certainly not with equal gaps. With any gap: yes, *very* slowly!

0 favourites 0 retweets

In reply to @moocowpong1

@moocowpong1 ah yes, you're right

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett gee thanks!

0 favourites 0 retweets

In reply to @mathshewrote

@mathshewrote your profile pic is amazing! Did you draw it?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I interpreted it as the plural!

0 favourites 0 retweets

Another day, another failed attempt to get @NclNumbas to do arbitrary precision arithmetic.
It's just too complicated!

1 favourite 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel 1) no, this is javascript. 2) I have to change how numbers are used throughout the entire codebase

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel yes. But as I said, it's not simple to just plug in to a very big code base

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz I haven't. Would've been nice to set off from their code originally, but not worth the effort of moving now

0 favourites 0 retweets

Worked out why I can't request a book from the uni library: I have an overdue fine from 2010. I've definitely had books out since then.

1 favourite 0 retweets

In reply to @christianp

I'm also pretty certain I paid that fine

1 favourite 0 retweets

In reply to @paulscoombes

@paulscoombes it was 7 years ago and a 60p fine, so no

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen @DrBennison I think this is it, and @Wolfram_Alpha makes a good approximation wolframalpha.com/input/?i=%2812…

1 favourite 0 retweets

In reply to @robotmaths

@AdamCreen @DrBennison oh no, I need to divide by another thing, but my metro has just arrived

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen @DrBennison check my working: easy to work out the prob of getting what you want in asc order. Multiply by number of permutations

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen if I'd had more time, I would've done it in my head. There's a v cheap approximation to factorial via an integral

0 favourites 0 retweets

In reply to @paulscoombes

@paulscoombes luckily they don't add interest, but even to get to £1 now would require a 7.5% rate of compound interest

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz the what what?

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 @panlepan @JustinAion also interesting: twin Towers of Hanoi. Start with two sets in different states; do the same moves on both

2 favourites 0 retweets

In reply to @panlepan

@panlepan @monsoon0 @JustinAion for any pair of towers, there's always a valid move

1 favourite 0 retweets

In reply to @stecks

@stecks I did miss it! Why isn't it on the site?

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK I can't help in this instance, but I think many of your interests will coincide with @futurebird's

0 favourites 0 retweets

In reply to @profhelenwilson

@helenjbradley @jeremybradley isn't that basically calpol?

0 favourites 0 retweets

In reply to @MEIMaths

@MEIMaths yes but a tweet is too small to describe my solution

1 favourite 0 retweets

New sequence, inspired by @moocowpong1: A283714 = the digits of π found for the second time in π oeis.org/A283714

3 favourites 0 retweets

To what extent is integration harder than differentiation? Could you make a crypto system out of it?

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow exactly, so is there scope somewhere for a one-way function?

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 me! I do!

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 absolut. You've got my email, right?

0 favourites 0 retweets

So that's what they're for! twitter.com/mathemaniac/st…

2 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith frinkiac.com/gif/S07E02/678…

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA ace t-shirt, but I'm not sure "vacancy" is strictly correct - every room can be occupied and you can still fit more people

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I looked at the same problem with football stickers a few years ago. Swapping doubles helps a lot! plus.google.com/+ChristianPerf…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @smarimc I think I got it from @Gelada, years and years ago

1 favourite 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep and now I've got the theme from Earthworm Jim stuck in my head

0 favourites 0 retweets

Reading a book on modern computer algebra. tl;dr: Gauss knew it all.

9 favourites 3 retweets

In reply to @mrfranklinmaths

@mrfranklinmaths @MEIMaths there are 15 Fermat levels?! I only have 12

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow and you've seen gaussfacts.com ?

0 favourites 0 retweets

How angry should I get about seeing the first version?

1 favourite 0 retweets

In reply to @dmswart

@dmswart thank you. Unchecked, I might have flipped untold tables

1 favourite 0 retweets

In reply to @bluecombats

@bluecombats @ChalkDust @aperiodical hard to review with only one episode, but it was decent, and the presenters are nice

0 favourites 0 retweets

In reply to @Derektionary

@Derektionary no - \ldots stands specifically for dots on the baseline, in contrast to \cdots. See tex.stackexchange.com/questions/7773…

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths @Derektionary ah yes, I knew there was another set of macros but couldn't remember what they were!

1 favourite 0 retweets

In reply to @profkeithdevlin

@profkeithdevlin your article "Good stories, pity they're not true" has disappeared from the MAA website! Any idea where it is now?

0 favourites 0 retweets

I've started sorting my interesting esoterica collection into subtopics. How about some attention-grabbing titles? read.somethingorotherwhatever.com/collection/att…

3 favourites 0 retweets

In reply to @christianp

Or things that are easy to explain read.somethingorotherwhatever.com/collection/eas…, or things to make and do read.somethingorotherwhatever.com/collection/thi…

2 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass Cor, thanks! 😊

0 favourites 0 retweets

In reply to @poveryant

@poveryant that's what I used to do! I was too ill to come this month - was it well attended?

0 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag the lack of a space here made me think it was a portmanteau with 'incontinent', and I shuddered to imagine what that meant

0 favourites 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @chalkdustmag or they tried to talk at a really awkward time?

0 favourites 0 retweets

We've got to stop promoting these unrealistic images of beaks full of fish on the covers of magazines. Pufflings are very impressionable! twitter.com/orange60/statu…

2 favourites 1 retweet

Just seen some true bravery: a dude carrying opened tins of paint in his brand new white audi

0 favourites 1 retweet

Phew! My spring-cleaning effort continues: all references on read.somethingorotherwhatever.com now have years of publication, where I could find them

0 favourites 0 retweets

In Middlesbrough tomorrow for @CodeClub training. Might fit in some maths sightseeing: lovemiddlesbrough.com/venues/temenos and thisisstockton.co.uk/attractions/in…

1 favourite 0 retweets

In reply to @christianp

oh, and google maps doesn't recommend going over the transporter bridge as the "best" route. It is MISTAKEN

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen ehh, it's a highlight for travel *inside Middlesbrough*. I wouldn't expand that to the wider UK.. or even the North East

0 favourites 0 retweets

My phone has bricked itself. I feel very odd! Thankfully, it's in warranty

0 favourites 0 retweets

The Journal of Articles in Support of the Null Hypothesis, aka "Beveridge's Law: the Journal" jasnh.com (via @ionicasmeets)

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ahhh, I mean Betteridge's law!

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge I even looked it up on wikipedia, and my lying eyes must have skimmed over it!

0 favourites 0 retweets

"Every Metro car door opens 240k times per year" - @bbcnewcastle
Using this I estimate Airport to South Hylton takes 1 hour. Google agrees!

0 favourites 0 retweets

In reply to @christianp

240k times/year, running 20h each day means every ~2 mins. Doors open at each stop. 30 stops on the line, so ~1 hour start to finish.

1 favourite 0 retweets

Surely a STEM graduate would have a more sophisticated calculator than that twitter.com/uksciencechief…

2 favourites 0 retweets

Having decided I'm going to have a dirty lunch in town today, I can think of nothing else.

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @virgintrainsec one of many falsehoods programmers believe about names kalzumeus.com/2010/06/17/fal…

1 favourite 1 retweet

In reply to @aperiodical

@aperiodical (that's "scary" in the "don't get your hopes up just yet" sense, not the "something is not right" sense)

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep getting square eyes seems an appropriate thing to do as you turn 36

3 favourites 0 retweets

This can not be a niche worth sitting in: an energy supplier catering specifically to Italian-language speakers in the UK

0 favourites 0 retweets

April

In reply to @C_J_Smith

@C_J_Smith Ooooh that looks satisfying!

0 favourites 0 retweets

Compiling the index for my new calculus textbook illustrated with 3d stereograms, "Dot the Ts and Cross Your Eyes"

4 favourites 0 retweets

Tedious programming tweet ahoy!

I had a play with vue.js yesterday and I really like it. Had the opposite reaction to react.

2 favourites 0 retweets

An excellent article about what it's like to be autistic standardissuemagazine.com/voices/see-not…

0 favourites 0 retweets

Happy morning listening to, as one odious class mate put it in freshers' week, "music women listen to as they put their tampons in"

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs congratulations!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge this is a good law

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp @haggismaths while we're talking -ians, I've always enjoyed saying "Grassmannian". Algebraic structures are fun too: magmas, monoids, presheaves

0 favourites 0 retweets

it's been a week and I still haven't seen a new pound coin. Polyhedral currency is still just a beautiful dream to me

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths anyway, shouldn't you want salt to be less easy to absorb? We have too much salt anyway.

1 favourite 0 retweets

Judging by the smell in this travelodge's corridors, it's common to smoke your dope as soon as you've bought it

1 favourite 0 retweets

This is making me anxious

5 favourites 0 retweets

It looks like mastodon is picking up, but signups are locked on the main instance. Behold! Too many to choose from: instances.mastodon.xyz twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @robeastaway this is one of those knowing-there's-an-answer-is-a-clue situations: if points are arbitrary, move them to the corners

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Yeah, it's a shot in the dark at the moment, but many people are using octodon.social

0 favourites 0 retweets

In reply to @enchantedloom

@enchantedloom Earlier in the year the Express had a headline "16C scorcher!"
Incredible even for them

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @ColinTheMathmo Ehh, it's like a mix of the web and email: whatever you put out will stay out, and the domain is a proper part of your ID

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @ColinTheMathmo I think it needs the ability to merge names across instances in case one shuts down , and then it'll become something you can commit to

1 favourite 0 retweets

I've made use of mastodon's massive character limit to post an oddity I've found to do with π: mastodon.social/@christianp/21…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett I suppose a week ago I would've put it on my beta blog. Not an aperiodical post because 15 minutes later I worked out our was boring

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc sorry we couldn't make it. Don't suppose any of it'll be recorded?

0 favourites 0 retweets

In reply to @DrLucyRogers

@DrLucyRogers Wonder if a program could categorise what you're writing based on words/hour. Low: poetry, love letter; high: fantasy novel, angry comment

1 favourite 1 retweet

In reply to @matheknitician

@matheknitician ooooooh I like the 3D one a lot!

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @FOTSN nearly-snap! I had mine on yesterday

0 favourites 0 retweets

In reply to @stecks

@stecks have you seen mathematische-basteleien.de/eggcurves.htm?

0 favourites 0 retweets

In reply to @stecks

@stecks @ajk_44 @FOTSN detachable pigtails as a concept, or me with detachable pigtails?

1 favourite 0 retweets

In reply to @stecks

@stecks @ajk_44 @FOTSN PS why is your video not an @aperiodical post

0 favourites 0 retweets

Thanks to @mathsjem on the latest @WrongButUseful for alerting me to numdic.com. Shows more facts than numbergossip.com

5 favourites 4 retweets

In reply to @edsouthall

@solvemymaths @mathsjem @WrongButUseful "if brackets remain expanded for longer than 3 hours, speak to your doctor"

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge that binomial expansion makes me feel queasy. I'll stick with completing the square.

0 favourites 0 retweets

I have made it through the work day and only eaten four of my five allotted cookies.

Reward: a cookie.

5 favourites 1 retweet

In reply to @C_J_Smith

@C_J_Smith Are they given an example of what minutes should look like?

0 favourites 0 retweets

In reply to @Gelada

@Gelada It's only fair that the reward is proportional to how good I am

2 favourites 0 retweets

Why does the royal mint website not know about the new pound coin? royalmint.com/discover/uk-co…

0 favourites 0 retweets

Here's how to make every amount up to £3.88 with the fewest coins codepen.io/christianp/ful…

1 favourite 0 retweets

Taking this bag of coins to the bank. Any guesses how much it's worth? It's not much deeper than what you can see

1 favourite 0 retweets

In reply to @jiyameng

@jiyameng couple of kilos

0 favourites 0 retweets

In reply to @christianp

All guesses in the £40 range. Odd.
In order of accuracy:
@jiyameng £40.96
@Bishnavitch £43.40
@GreyAlien £45.

Actual value: £60.92! Wow!

3 favourites 0 retweets

In reply to @jamestanton

@jamestanton Your most successful nerdsnipe in a while. codepen.io/christianp/pen…

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths I wrote a few @NclNumbas questions similar to this a few weeks ago. They had much less fun framing than this though

1 favourite 0 retweets

The ceiling at my dad's house is like a quake level with a million bad brush errors

5 favourites 0 retweets

I'm holding my first three dodecagonal pounds and they were all minted in 2016. @peterrowlett was it you who said 2016s are rare?

0 favourites 1 retweet

#spuriouscorrelations

0 favourites 0 retweets

@quaristice may I reuse this photo in a post on aperiodical.com?

0 favourites 0 retweets

@quaristice thanks!

0 favourites 0 retweets

We had a lovely day out at @NTcragside today. The granddads-per-square-metre measurement was off the charts!

0 favourites 0 retweets

bbc.co.uk/news/uk-396823…
This makes me suspect that the eejit who suggested that awful stone last time is still employed by the Labour party

0 favourites 0 retweets

@tonikenergy just submitted my first meter readings to you. The form strips out decimal dots; I almost sent 10x the real values 😬 Dangerous!

0 favourites 0 retweets

In reply to @DrLucyRogers

@DrLucyRogers ... but you only had a 5.25" drive, and that's when you woke up?

0 favourites 1 retweet

In reply to @philipcball

@philipcball Related, those lazy images of floaty digits/notation, e.g. uk.pinterest.com/katiesteckles/…. Have you noticed this? I call it "cumulonumbers"

0 favourites 0 retweets

In reply to @misosusanowa

@misosusanowa @DrLucyRogers sudden flashback to PC Zone magazine launching with **HD floppy disks!!!**
Funny what you can get excited about when you're little

1 favourite 0 retweets

In reply to @philipcball

@philipcball yes, now you mention it I do sometimes swat theatrically at the equations as they float by, before shouting "Eureka!"

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @CounterOfSheep no, he lives very close to the bus depot

0 favourites 0 retweets

In reply to @NewcastleCC

@NewcastleCC @YouTube that address doesn't work without www. in front of it.

0 favourites 0 retweets

In reply to @tim_hunt

@tim_hunt that doesn't look like a link to a PDF

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA immediately reminded me of cameroncounts.wordpress.com/2015/05/11/don…, on a purely superficial basis

0 favourites 0 retweets

#me_irl

1 favourite 0 retweets

In reply to @jamestanton

@jamestanton I think it's p/(p-1). This tweet is too small etc. etc.

0 favourites 0 retweets

In reply to @WanderingPoint

@WanderingPoint @jamestanton Yes, 1/(p-1) is right. I spotted a 1/p at the start and promptly forgot about it!

1 favourite 0 retweets

Didn't think I wanted a rabbit update, but this one delivered twitter.com/charliesgames/…

1 favourite 0 retweets

We're watching the 1st series of Location, Location, Location. The production: hilarious. Following along with today's prices on Zoopla: not

0 favourites 0 retweets

"Strong against the weakest and weak against the strongest" is a lovely bit of chiasmus. Finally a decent bit of rhetoric! twitter.com/jeremycorbyn/s…

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Shuffle a pack of cards. Deal into piles, starting a new pile when you see a card already in the current pile.
Expected number of piles?

2 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge yes, same rank

0 favourites 0 retweets

Yes twitter.com/balrogz/status…

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK by giving away so much you end up in a state where someone else would give charity to you

0 favourites 0 retweets

Before GitHub, has anyone else built a billion-dollar company on a product whose name is a swearword?

1 favourite 0 retweets

Wait. I, a person who has vowed never to swear, have put myself in a situation where I retweet swearwords all morning. Oops.

2 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge I vowed.

0 favourites 0 retweets

In reply to @stecks

@stecks the world is awash with inopportunely-named open source projects

0 favourites 0 retweets

May

This is an excellent animation. Next challenge: convert general dot drawing to a scatter plot with given stats twitter.com/JustinMatejka/…

2 favourites 0 retweets

How to end ads on the internet: get your ad blocker to silently follow every single ad link, ruining clickthrough analytics

1 favourite 0 retweets

In reply to @christianp

(assuming you want that to happen and you use an ad blocker. I don't)

0 favourites 0 retweets

Opportunity to use the phrase "totally tropical" in a maths paper: missed by a hair's breadth. arxiv.org/abs/1606.00238

0 favourites 1 retweet

Just found this nice paper via the arXivist on how to make polyhedra out of PVC pipes arxiv.org/abs/1705.00100

5 favourites 3 retweets

Also via the arXivist: this paper which is very relevant to my 2016 @MathsJam conference compo arxiv.org/abs/1704.08483

0 favourites 1 retweet

Yet again, my decision not to bother getting a PhD is justified by someone opening an email with "Dear Dr Lawson-Perfect".

4 favourites 0 retweets

Question for people like @Raspberry_Pi and @DrLucyRogers: has anyone already written the necessaries to pass your phone's mic audio to a Pi?

1 favourite 0 retweets

In reply to @christianp

.@Raspberry_Pi @DrLucyRogers This might work: if I can get the Pi to pretend to be a bluetooth speaker, this app claims to stream the phone mic play.google.com/store/apps/det…

1 favourite 1 retweet

RELEVANT TO MY INTERESTS twitter.com/evelynjlamb/st…

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb minus points for that post linking to the paper at an NY library URL which doesn't even tell me its title unless I log in

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In reply to @evelynjlamb

@evelynjlamb I mean, when a headline says "all mammals poop in 12 seconds", I immediately have anecdata (N=1) that that's not true

1 favourite 0 retweets

In reply to @NYULibraries

@NYULibraries a blog post sent me to ezproxy.library.nyu.edu:3010/en/content/art…, which I'm not allowed to see. Could it at least show the title of the thing?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @benorlin If he can paint and form friendships, he can have affected speech, right? Maybe Data is a massive hipster

2 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb doesn't apply to continuously-pooping mammals like rabbits or guinea pigs. I've been sold a bill of goods!

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Hey @PopSci, what's the title of the paper this article is about? popsci.com/everyone-poops
Link in the post goes to NYU, which I can't see

0 favourites 0 retweets

In reply to @NYULibraries

@NYULibraries I don't! Thanks though. Is there a URL the post author could have used to show non-privileged people metadata about the paper?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb Read the paper, I'm even less happy. Better stated as "no correlation between weight and poo time". Observed times between 2 and 27 seconds!

0 favourites 0 retweets

In reply to @NYULibraries

@NYULibraries I've got a copy now, thanks. Showing what I've been directed to before asking for a login would be good UX.

0 favourites 0 retweets

In reply to @haggismaths

@haggismaths And here's the paper itself epubs.siam.org/doi/abs/10.113…

1 favourite 0 retweets

Is there such a thing as cat's cradle with two strings? (or, in this case, laccy bands)

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge huh? It's just a sign error: -10T=-17.5T etc. means distance travelled is in the same direction as initial velocity. Should be -10T=17.5T...

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge and the acceleration is in the same direction as the distance travelled, so should be negative. Who sold you this formula? Get a refund!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ah, I used u and didn't spot you hadn't. So is it a coincidence that 5/7 turns up both ways round? I'm lost in a maze of signs

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge That's what I first thought, but I convinced myself it wasn't quite it. I think I meant changing v without changing u or s, but that breaks

0 favourites 0 retweets

In reply to @GirlGeekUpNorth

@GirlGeekUpNorth @ben_nuttall @Raspberry_Pi Is that photo of @ThinkPhysicsNE in Northumbria Uni? I got excited and then noticed the event is in Manchester :(

0 favourites 0 retweets

Lovely bit of working. And I didn't know Spanish used a translated form of Q.E.D.! twitter.com/MelvinPerezCx/…

1 favourite 0 retweets

In reply to @reflectivemaths

@reflectivemaths @srcav @icecolbeveridge The most charitable I can be is to interpret "x^2 - y^2" as "x^2 to y^2", and the factorisations would range from x*x to y*y.

1 favourite 0 retweets

Did I dream about voting yesterday, or has BBC News forgotten that North Tyneside had a mayoral election? bbc.co.uk/news/topics/42…

1 favourite 0 retweets

In reply to @christianp

Oh look, an article titled "Council and mayoral elections: Are they being forgotten?" on... BBC News!
bbc.co.uk/news/election-…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge @reflectivemaths in that case, [stuff] would be "this part of the expression"

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@warwick_hunt79 But there are "not yet declared" entries for other elections

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North Tyneside maybe-a-dream-election update: our (good) Labour mayor was re-elected with a swing away from the Tories. Hooray!

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Oh great, I've got this stuck in my head again
youtube.com/watch?v=l7iVsd…

(it's really great, I meant what I said)

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If it's only 10C outside, why am I walking the dog in just a t-shirt?

2 favourites 0 retweets

There's always one twitter.com/RealityMinus3/…

0 favourites 0 retweets

There are often two twitter.com/adamcreen/stat…

1 favourite 0 retweets

Sometimes, when the stars align and you choose your words particularly poorly, there are three twitter.com/ChrisMaslanka/…

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb Douady certainly had a theme: he coined "carrot fields" read.somethingorotherwhatever.com/entry/Petersen…

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Excellent! twitter.com/stecks/status/…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett I mean, those are both killer features for me

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Print? Pencil?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @tombutton Yeah, only works on the website

0 favourites 0 retweets

In reply to @tombutton

@tombutton @peterrowlett on android, you can put the website on your homescreen, and it acts like an app

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz @ColinTheMathmo @tombutton @peterrowlett @MathJax Because of the protocol: toots can only be plain text, and clients show images as attachments at the bottom

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Ooooooh! twitter.com/MrTilston/stat…

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc @colinfoster77 alas, another article in a journal Newcastle doesn't subscribe to!

0 favourites 0 retweets

Over on mathstodon.xyz, people are making good use of the sensitive content button not for politics or triggers, but MATHS SPOILERS

3 favourites 1 retweet

A bit of default male in this localised mailshot from Open Britain?

1 favourite 0 retweets

In reply to @jjaron

@jjaron Hey, if it means she loses against all the odds, I can put up with it

0 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths @MegaMenger It'll be alright Ben, in time your memories of it will have measure zero.

3 favourites 0 retweets

In reply to @Pecnut

@Pecnut American parking signs are an information design nightmare

2 favourites 0 retweets

In reply to @robeastaway

@robeastaway I'd love to know what percentage of the economy is accounted for by inattentive consumers

1 favourite 0 retweets

I need to show Y1-Y4 kids fun maths next week. I have flexagons and 1089 already. Ideas please, @MathsRoadshow @robeastaway @nrichmaths

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @MathsRoadshow @nrichmaths what's the twenty game?

0 favourites 0 retweets

In reply to @helenjwc

@helenjwc @robeastaway @MathsRoadshow @nrichmaths it's a careers event: I'm to show them what a mathematician does. But my primary teacher wife has said I should have tricks up my sleeve

1 favourite 0 retweets

In reply to @helenjwc

@helenjwc @MathsRoadshow @robeastaway @nrichmaths (I mentioned them in my original tweet)

0 favourites 0 retweets

In reply to @helenjwc

@helenjwc they're going to ask me some questions, and then I thought I could demonstrate mathematical thinking via mathemagic or things like flexagons

1 favourite 0 retweets

Are you as excited about #eurovision as me? Have *you* made an online judging thingy so you can award nul points? somethingorotherwhatever.com/nulpoints/

1 favourite 2 retweets

😍 twitter.com/TPalmer207/sta…

0 favourites 2 retweets

#eurovision watching friends: if you want to play along with judging the songs in a whizzy way, I made a thingy somethingorotherwhatever.com/nulpoints

0 favourites 0 retweets

In reply to @christianp

We've just discovered it doesn't work on iPhones. Rats.

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson @gwydionuk It's banned in our house because I developed a problem. Incoming patak's jars are examined very closely by the relevant authority

0 favourites 0 retweets

I was impressed by google translate, then not so impressed, then fascinated

11 favourites 4 retweets

In reply to @geogebra

@geogebra this problem has reared its head again: help.geogebra.org/topic/web-appl…
Where's the right place to file it? Could I fix it?

0 favourites 0 retweets

In reply to @mcmwright

@mcmwright @CardColm you'd have trouble getting out of Newcastle - no canals up here!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths there's been a mix-up: you've got Zorro's order

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith all my marking is done automatically by computers, which means I'm spending this week configuring computers 😕

0 favourites 0 retweets

In reply to @extremefriday

@extremefriday @JohnDCook That's the best description of grobner bases I've seen so far!

1 favourite 0 retweets

Current status.

#hexaflexagon #debugface

1 favourite 0 retweets

@mikegibson2010 @twMetro Yeeeeikes!

0 favourites 0 retweets

I'm going to Amsterdam in a fortnight. What mathsy sights should I see while I'm there?

2 favourites 2 retweets

In reply to @bmansdahl

@bmansdahl thank you very much!

1 favourite 0 retweets

Phew! 😌
36 @NCLMathsStats hexaflexagons, ready to be flexed and hexed by kids tomorrow. (bonus binary numbers magic trick in the background)

7 favourites 1 retweet

In reply to @standupmaths

@standupmaths bahh, I'll be there on Saturday. Don't suppose you're around that long?

0 favourites 0 retweets

Some giddy students high on maths fumes have commandeered these whiteboards to say "THE ANSWER IS ALWAYS 7! (Fermat)" #revisionflotsam

0 favourites 0 retweets

Mind blown watching Location^3, as a couple in the South pay <inconceivable sum> for <terrible house>

1 favourite 0 retweets

In reply to @robotmaths

@AdamCreen @CardColm 1) semantics 😒
2) that's a kind of equation

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs Take your pick from the aperiodical?

1 favourite 0 retweets

Before visiting a primary school today, I asked them to draw a mathematician. I think this one is @stecks!

20 favourites 3 retweets

In reply to @standupmaths

@standupmaths And it makes a nice non-alcoholic alternative to wine at a meal

0 favourites 0 retweets

We're on our way to Edinburgh to see @henryseg's Brilliant Geometry exhibition summerhall.co.uk/visual-arts/br…

6 favourites 3 retweets

Those are some capital-L Looming rain clouds!

2 favourites 0 retweets

In reply to @standupmaths

@standupmaths @stecks Easy!

34 favourites 3 retweets

In reply to @standupmaths

@standupmaths @stecks Alright, Johnny Five-Pounds!

4 favourites 0 retweets

In reply to @stecks

@stecks @standupmaths The video ref has disallowed that one on the grounds it's completely naff

0 favourites 0 retweets

In reply to @IMAmaths

@IMAmaths well, I have...

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths You've got a paper copy!!! I only have a dejavu file of dubious origin

1 favourite 0 retweets

Oooh! trido.co.uk

0 favourites 0 retweets

Aaaah! productdesignaward.eu/winners/winner…

0 favourites 0 retweets

A sign to strike fear into the hearts of teachers everywhere

0 favourites 0 retweets

Is anyone doing proper modelling of seat counts for the election, instead of just national percentages?

0 favourites 3 retweets

Pretty pleased with this card I made for @aperfect's birthday, which is today. Because he's so old he didn't get the top right corner.

2 favourites 0 retweets

Discovering Malcolm Swan's material today thanks to #malcolmswanday. This statement isn't necessarily true: assumes straight cut?

4 favourites 2 retweets

@SylviaFysica @peterrowlett @NewtonInstitute @Quendus @divbyzero @SwedeWhite @PaulSecular they wanted a link to Cambridge, and Conway was at Cambridge while developing GoL

1 favourite 0 retweets

These days happen. Like a roller-coaster almost stopping at the top, they're necessary. twitter.com/extremefriday/…

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK if it dries out quickly, mould can't grow on it. See also aht.seriouseats.com/archives/2010/…

0 favourites 0 retweets

In reply to @CardColm

@CardColm crikey, that as well as the other two dishes?

0 favourites 0 retweets

In reply to @Raspberry_Pi

@Raspberry_Pi @jjsanderson @biglesp or, in short, Wasberry Pi

0 favourites 0 retweets

Today on mathstodon.xyz, the Interesting Esoterica bot has tooted a paper on my absolute fave puzzle mathstodon.xyz/@esoterica/413…

1 favourite 1 retweet

The wife just did bunny fingers while saying "democracy". Now want to know if she has a badly printed zine I can read for more jaded views

1 favourite 0 retweets

In reply to @christianp

(bunny fingers were prompted by our discussion of the first-past-the-post system. She's got a point.)

0 favourites 0 retweets

Help help a wicked witch visited in the night and turned me into a millennial

3 favourites 0 retweets

Dog election update

0 favourites 0 retweets

Spare room change of usage referendum update

1 favourite 0 retweets

Funniest misspelling of 'lad' plebiscite update

1 favourite 1 retweet

Best wedding thingy ever! twitter.com/jiyameng/statu…

0 favourites 0 retweets

I've been rinsing Dutch on duolingo. It's true what they say - it's basically German and English with some left-field nonsense thrown in

3 favourites 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy Hah, I'm in Amsterdam on Wednesday! I guess I'll never know what the book is about

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @MathsRoadshow Conversely, people started taking me seriously at a worryingly young age, and some people think I'm still in my early 20s!

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 A bad thing from the conference we organised: put out free coffee on first morning, then no coffee the next morning. Unhappy campers!

2 favourites 0 retweets

There's dialling a wrong number, and there's accidentally dialling my UK number instead of the Indian one you want. I can't imagine how.

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @plusmathsorg @MathsRoadshow yeah, wine at a conference puts me off

1 favourite 0 retweets

Somebody might have made a large diversion on his Welsh holiday to visit Tenby museum because of this... (it has some lovely calculators!) twitter.com/notonlyahatrac…

9 favourites 1 retweet

In reply to @eleonorasfalcon

@eleonorasfalcon Correct! Many fine eateries too

1 favourite 0 retweets

I'm going to retreat to the mountains and contemplate this joke for a while. It's perfect. twitter.com/macaronique/st…

3 favourites 0 retweets

June

There are some lovely things to play with at NEMO science museum

2 favourites 0 retweets

In reply to @christianp

(that's @NEMOamsterdam) and of course no Dutch science museum would be complete without a dam building exhibit

4 favourites 3 retweets

Seen you, @stecks

0 favourites 0 retweets

My glass is modelled on the new £1 coin

2 favourites 0 retweets

In reply to @stecks

@stecks Humbly report I didn't look inside. A marvellous set of bronze platonic solids caught my eye...

1 favourite 0 retweets

😱 twitter.com/icecolbeveridg…

0 favourites 0 retweets

It might look like someone did their queueing theory wrong, but this enormous queue down the length of Schiphol terminal 2 cleared quickly!

0 favourites 0 retweets

In reply to @CardColm

@CardColm Newtons per metre squared multiplied by metres squared

0 favourites 1 retweet

Yes! Landed one minute before we set off! #timezonegoals

6 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo Yes but I can't play this year because the weekend is our due date!

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths Tanya Khovanova has more fun maths (referencing you) about the best way to share a pile of things: blog.tanyakhovanova.com/2017/06/fair-s…

0 favourites 0 retweets

That's a proper speech, that. twitter.com/OwenJones84/st…

2 favourites 0 retweets

Our new PVC sending his monthly newsletter through a commercial service instead of the uni's own mailing list. Not sure how to interpret.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston I've never been able to convince myself that unrolling preserves the length.

1 favourite 0 retweets

My life: the comic strip qwantz.com/index.php?comi…

0 favourites 0 retweets

In reply to @mathyadriana

@mathyadriana That is a lovely room!

2 favourites 0 retweets

In reply to @mathforge

@mathforge @robinhouston It's the cartesian product bit I have trouble with. I assume that's an easy fact viewed from the right vantage point

0 favourites 0 retweets

In reply to @mathforge

@mathforge @robinhouston Thank you!

0 favourites 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy do you know what happened to the non-Oxford data from the old site? I'm interested in archiving it if possible

0 favourites 0 retweets

In reply to @numberphile

@numberphile have you seen this? A lovely little bit of speculative maths spelunking found the terrific number 13532385396179 twitter.com/aperiodical/st…

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway my speedrun record for the old-style GCSE is under 20 minutes. Not sure how I'd do with a new one

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I've just done this AQA paper 1 specimen in 24 minutes, but my brain is mush and I forgot the circle theorem for q21 filestore.aqa.org.uk/resources/math…

0 favourites 0 retweets

In reply to @christianp

@robeastaway in conclusion: the questions are much harder!

0 favourites 0 retweets

I got polled on Monday night. As a highly-educated Labour voter in the North East, I don't think I swung it much. twitter.com/jjaron/status/…

0 favourites 0 retweets

What kind of question is "what's the naughtiest thing you've ever done?" What would a good answer be?

1 favourite 2 retweets

In reply to @numberphile

@numberphile @aperiodical I can give you his email address. No idea other than that, sorry.

2 favourites 1 retweet

The pricing of bus tickets in Newcastle seems to be a process best summed up as "pick a number between 1 and 3 pounds when someone gets on"

2 favourites 0 retweets

Time for another instance of my favourite game: oh-god-did-I-defo-put-the-cross-in-the-labour-box-or-am-I-a-massive-moron

0 favourites 0 retweets

Is.... google.... down? Everything else is working for me but Google Maps and search aren't responding.

0 favourites 0 retweets

@efrataitel so no, then. Or not for you, at least

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @robeastaway He says, suspiciously a day later 😉

0 favourites 0 retweets

Sneaky hyperbolic plane spotted in Durham's maths building after @henryseg's talk

4 favourites 0 retweets

In reply to @JSEllenberg

@JSEllenberg Not sure that would be helpful, since the results are very much not independent. (PS they're constituencies not districts)

1 favourite 0 retweets

In reply to @MouldS

@MouldS That always annoys me!

0 favourites 0 retweets

As surely as night follows day, the general election is followed by the resignation of the leader of UKIP twitter.com/BBCBreaking/st…

1 favourite 0 retweets

So Scots tories want to split from the English tories but not Scotland to split from UK. One of those lake-on-an-island-on-a-lake scenarios

0 favourites 0 retweets

Welp, it's started: adverts for baby things appearing on every page I visit.

2 favourites 0 retweets

Clopen All Hours twitter.com/peterrowlett/s…

8 favourites 1 retweet

Waiting to find out how Cedric Villani did in the French legislative election. I *think* the result will appear here leparisien.fr/elections/legi…

1 favourite 1 retweet

In reply to @jjsanderson

@jjsanderson Don't look up his majority. I hit things when it came up on the live feed

0 favourites 0 retweets

I've spent the morning typing up explanations of maths jokes for an outreach event
checkmyworking.com/misc/jokes/
If you know more, tell 'em to me!

4 favourites 2 retweets

A classic!

I've just realised my mentions is going to be full of cheesy maths jokes for the foreseeable... twitter.com/bewdyrooster/s…

2 favourites 0 retweets

I think retweeting these will help spread the pun load.

Keep them coming! twitter.com/LearningMaths/…

3 favourites 0 retweets

In reply to @MrsOC6

@MrsOClee @LearningMaths aw man, I forgot to put MathJax in!

1 favourite 0 retweets

I'm moderately pleased with this impossible-looking quadratic equations question in @NclNumbas: numbas.mathcentre.ac.uk/question/22460…

1 favourite 2 retweets

In reply to @christianp

@NclNumbas ("impossible" if you can't do big sums or multiplication)

0 favourites 1 retweet

In reply to @Parcly_Taxel

@Parcly_Taxel @NclNumbas Well, quite - but plugging the numbers into the quadratic formula is not a good way to go. That's the point of it.

0 favourites 0 retweets

In reply to @Kevin_T_42

@kevin_tsang @NclNumbas ahhh, whoops!

0 favourites 0 retweets

This video's got it all: cumulonumbers, Cédric Villani, DONALD DUCK IN MATHMAGIC LAND twitter.com/InHenriPoincar…

1 favourite 0 retweets

"Are you ready for winter" advert on the metro. I know our summers are short up here, but that's really pushing it!

1 favourite 0 retweets

In reply to @extremefriday

@extremefriday Maybe they mean Five-Percenters? en.m.wikipedia.org/wiki/Five-Perc…

4 favourites 0 retweets

In reply to @JamesMoosh

@JamesMoosh @NclNumbas (now fixed)

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Just an old word, I think

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb does it help to report spam sites reproducing your blog posts? aboromedia.com/ai/2017/06/16/…

0 favourites 1 retweet

In reply to @elinoroberts

@elinoroberts @theAliceRoberts That would be massively unlikely, wouldn't it?

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Wow, that packs a punch. Such a powerful image twitter.com/UKDemockery/st…

1 favourite 0 retweets

There was a mixup with the shopping list and now we've triggered the summer's blockbuster event, CRISIS ON INFINITE BANANAS

1 favourite 1 retweet

Fuzzable might make a good middle name for the forthcoming LP twitter.com/LaurieStories/…

0 favourites 0 retweets

Doing indecent things to a minimilk

1 favourite 0 retweets

I've just discovered that Cambridge put a lot of their undergrad maths notes on the web maths.cam.ac.uk/notes-web

18 favourites 6 retweets

Just noticed that github.com/numbas/Numbas/… has 420 closed issues.

xX_420_Cl0sE_iT_Xx

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @WWMGT is there something neat about this that I wouldn't see by brute forcing it?

0 favourites 0 retweets

In reply to @ChrisMaslanka

@ChrisMaslanka obvious in hindsight!

0 favourites 2 retweets

Finally getting back to looking at the cool new marking algorithms feature for @NclNumbas, while my interns work away on transition material

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb Is it two square antiprisms stuck together?

2 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @panlepan Those squares didn't look flat to me. Cuboctahedron would be a good guess - easy to look up the working-out for edge lengths

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @thinkmaths Can you arrange a golomb ruler to knock out an interesting sequence of measurements as you sharpen the pencil?

1 favourite 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn A vector diagram showing the direction of flow of maths?

1 favourite 0 retweets

In reply to @jjaron

@jjaron There's a grim way of being reminded about skedasticity.
Also: we're poor up here, but at least we're *all* poor

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!!!!!!!!!! twitter.com/octonion/statu…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge It's the Culture Club function

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I've got a fiver, a tenner and a twenty in my wallet. Sorely tempted to get a fifty out just to complete the set

2 favourites 0 retweets

In reply to @FOTSN

@FOTSN We'll be Baby minus 1 week on the night you're in Durham. Has nerdity ever induced labour?

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN smooth

0 favourites 0 retweets

In reply to @MouldS

@MouldS "Time of day" looks perfectly good to me, and unambiguous

2 favourites 0 retweets

That might actually help me remember the definition of noetherian twitter.com/FactsOfMath/st…

2 favourites 1 retweet

In reply to @rjallain

@rjallain @panlepan @Derektionary There's a place where your dream comes true: mathstodon.xyz

3 favourites 0 retweets

How have I never seen Erich Friedman's Math Magic page before? Monthly recreational maths puzzles www2.stetson.edu/~efriedma/math…

7 favourites 1 retweet

More journal website unusability. Where do I click to view the paper? Took me 10-20 seconds.

0 favourites 0 retweets

A web-based tool to get readable alt text as well as an SVG, PNG, or MathML for a bit of LaTeX maths twitter.com/pkrautz/status…

2 favourites 0 retweets

I'd be wary of anyone who had a scar and couldn't vividly remember how they got it! twitter.com/gretchenrubin/…

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Turns out I need to check my no-unexplained-scars privilege

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Sad: Newcastle @MathsJam is on hiatus. I'm rarely there because of Family. Who in the North East is interested? mathsjam.com/cities/newcast…

0 favourites 4 retweets

I'm now in day 4 of Deep Code Plumbing, and beginning to see the light at the end of the tunnel. I need something fun to do after this!

0 favourites 0 retweets

In reply to @Dragon_Dodo

@Dragon_Dodo #raisedbywolves

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel umm? Not sure. What's special about it?

0 favourites 0 retweets

News to me! This is actually fascinating: look at that dependency graph change en.wikipedia.org/wiki/Proposed_… twitter.com/Parcly_Taxel/s…

1 favourite 1 retweet

There's a baffling simulator of Setun at trinary.ru/projects/setun…, though Fowler's ternary calculator's more my speed mortati.com/glusker/fowler… twitter.com/Gelada/status/…

2 favourites 1 retweet

Is it too early to drop hints for whoever gets me in Secret Santa this year? presentandcorrect.com/collections/no…

0 favourites 0 retweets

Providing a valuable public service. twitter.com/chalkdustmag/s…

1 favourite 2 retweets

In reply to @_tim_hutton_

@_tim_hutton_ Haha!

0 favourites 0 retweets

Ikea PRØDIGY twitter.com/FOTSN/status/8…

3 favourites 0 retweets

I had a fascinating chat with David about his work with topos theory and the continuum hypothesis. twitter.com/aperiodical/st…

1 favourite 0 retweets

A story on the BBC where "you" isn't assumed to be white, Christian, etc. etc.!!!
Very welcome.

2 favourites 0 retweets

A rare glimpse of the Coastal Woof Shark, seen here in her native habitat

1 favourite 0 retweets

First in to coin "stochastic communism" twitter.com/darrenglass/st…

2 favourites 2 retweets

In reply to @helenarney

@helenarney my brain just misinterpreted the tour name and leapt to a follow-up, "You Can't French A Nerd". Other nationalities that are also verbs?

0 favourites 0 retweets

Mental maths error, or essay from the future?
Source: bbc.co.uk/news/uk-politi…

1 favourite 1 retweet

Turns out
1) my wife never watched the crystal maze
2) now I'm making her watch it, she can't bear it
I thought we were soul mates!

1 favourite 0 retweets

I'd never heard of Genaille rods before. How gloriously impractical!
youtu.be/JCUPFZ0iH_s

0 favourites 1 retweet

I need an epidemiologist: have I fought off the vomiting bug, or has the vomiting bug allowed me to live?

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK *hugs*

0 favourites 0 retweets

Seems you can't press Shift+Delete to remove a bad autocomplete from the Chrome address bar any more. Boo!

0 favourites 0 retweets

Brings to mind read.somethingorotherwhatever.com/entry/NoThisis… twitter.com/hnodrog/status…

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN Nice, but I couldn't in good conscience wear a t-shirt which reports a fraction out of 16 to four sig figs

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN Oh man, I could talk at length about why it's worse than unnecessary. AT LENGTH

Wait... you got me!

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Wikipedia: the text adventure is surprisingly fun. I started at Stonehenge and I'm trying to get to London. Currently near Basingstoke

0 favourites 0 retweets

In reply to @christianp

Going to see if I can get to the London Eye. I know roughly where it is in London, but will wikipedia be too dense to find it?

0 favourites 0 retweets

In reply to @christianp

I'm stuck outside Windsor in a maze of twisty golf championships, all alike

0 favourites 0 retweets

In reply to @samholloway

@samholloway takes you to Colossal Cavern, Kentucky. Nice reference, but scuppers me!

1 favourite 0 retweets

In reply to @samholloway

@samholloway that's not a verb I recognise

0 favourites 0 retweets

In reply to @christianp

Wahey!!!

1 favourite 0 retweets

In reply to @robotmaths

@AdamCreen I think I might be. Give me a hint?

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen sounds very vaguely familiar. I don't think I've played it

0 favourites 0 retweets

July

I like it VERY MUCH!
brb, recreating for a variety of outfits twitter.com/PyViv/status/8…

4 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Have you seen this? publicdomainreview.org/collections/al…

0 favourites 0 retweets

All the estate security policies in the world won't stop me buzzing a man with a palette of müller corners into the building

2 favourites 0 retweets

Ooh, it's the princess in a castle problem!
I made an interactive version years ago checkmyworking.com/misc/princess-… twitter.com/alexbellos/sta…

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo it can only ever be too late to say that

1 favourite 0 retweets

My mother informs me @mathbabedotorg was very good talking about maths on Start the Week this morning. bbc.co.uk/programmes/b08…

0 favourites 0 retweets

In reply to @christianp

@mathbabedotorg I quote: "she says the things CP says about maths".
No higher praise from the matriarch P

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Don't let balloons fly away, guys! twitter.com/SteelySeabirde…

0 favourites 1 retweet

I searched for somebody with the surname "Emba" and now I'm getting a million adverts for MBAs

1 favourite 0 retweets

Never forget what a poset is again, by looking at your knick-knacks! twitter.com/PyViv/status/8…

1 favourite 1 retweet

Over on Mathstodon, David Eppstein is looking for maths papers with lots of authors mathstodon.xyz/@11011110/1012…
I found one with 13!

0 favourites 0 retweets

In reply to @DrSaraSantos

@DrSaraSantos I've read the rational tangles paper loads of times but never quite believed it. I think I need to do it for real. Does it really work?

0 favourites 0 retweets

I dream of a future where I'll be able to put an exclamation mark after a digit and nobody will make the canonical "joke" twitter.com/bit_player/sta…

1 favourite 0 retweets

To paraphrase Churchill, putting an exclamation mark after a digit is something up with which you will not put? twitter.com/theoremoftheda…

1 favourite 0 retweets

In reply to @nickteff

@nickteff nice! My script broke at some point after finding 13 and I lost interest. How did you find that one?

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @QMUL @thinkmaths have you seen this thing I made? christianp.github.io/hexaflexagon/
I think it'll be right up your street

0 favourites 0 retweets

In reply to @mathforge

@mathforge @DrSaraSantos read.somethingorotherwhatever.com/entry/Davis2012

0 favourites 0 retweets

In reply to @mathforge

@mathforge @DrSaraSantos Well, I have a "things to make and do" category read.somethingorotherwhatever.com/collection/thi…

0 favourites 0 retweets

Google claims I walked 100km last month. That's about 3km per day. I can't decide if that's a reasonable estimate or not.

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I reckon that's directly relevant. We have the same thing on Newcastle's campus to deter bike thieves

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @stecks Breaking news! You can do much, much better, with magnets archive.bridgesmathart.org/2017/bridges20…

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @Dragon_Dodo @RealityMinus3 @aga_furtak TIL purple is one of the Set colours.

0 favourites 0 retweets

Browsing GitHub, I've come across a package offering "stateless login". That sounds like an oxymoron.

0 favourites 0 retweets

It's only just occurred to me that rather than weighing up which of the two local foodbanks would benefit most, I could just donate to both

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight (hastily written) Makefiles

0 favourites 0 retweets

Early career researchers: have you been bullied into doing bad science? There's a letter to sign bulliedintobadscience.org

0 favourites 0 retweets

In reply to @profhelenwilson

@helenjbradley I think that's one of the lines from that Alanis Morissette song

2 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I get 72F = 22C, which is quite warm! We have our thermostat at home set to 19C = 66F which I'll admit is on the low side, but come on!

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb I see, so you don't need to adjust your clothing too much when you come in

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @icecolbeveridge @Dragon_Dodo @RealityMinus3 @aga_furtak 😱

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep It's fascinating watching you do all this thinking about your autistic self as an adult, when I did the same as a teenager.

2 favourites 0 retweets

In reply to @mathsjem

@mathsjem yes! I typed up a whole page of maths jokes last week, with explanations too! checkmyworking.com/misc/jokes

18 favourites 5 retweets

In reply to @CDAXY

@CDAXY @mathsjem I have not! I'll keep an eye out for it

0 favourites 0 retweets

In reply to @k_houston_math

@k_houston_math You are having much more success promoting an artistic outlook than I am!

0 favourites 0 retweets

In reply to @christianp

@k_houston_math Oh, it's the guy who was at matrix! I really liked his work!

0 favourites 0 retweets

Some good news I didn't expect to read any time soon! twitter.com/kayaburgess/st…

1 favourite 0 retweets

One fine day with a woof and a purr, a baby was Bourne and it caused a little stir twitter.com/jkeefe/status/…

2 favourites 0 retweets

Annoyed but delighted to see that my summer students somehow on my day off doubled the number of @NclNumbas questions I need to proofread

0 favourites 0 retweets

Oh hey, the Home Office made a poster exactly describing my design style github.com/UKHomeOffice/p…
PS that "raining cats and dogs" icon is 👌

4 favourites 0 retweets

In reply to @christianp

in other news, thanks to the Home Office for reminding I was going to write captions for the @NclNumbas screencasts

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow Well yes, good accessibility helps everyone, but items 2, 3 and 4 are particularly important with ASD

0 favourites 0 retweets

This is an element of oeis.org/A113797, added to the OEIS in 2006. twitter.com/wilderlab/stat…

2 favourites 0 retweets

In reply to @eAssess

@eAssess wot, no "it cost a tonne of money and is at the wrong end of the country"?

0 favourites 0 retweets

In reply to @eAssess

@eAssess but my travel budget is so small!

0 favourites 0 retweets

In reply to @eAssess

@eAssess ah, we thought we had to attend the dinner. Wasn't clear.

1 favourite 0 retweets

In reply to @monsoon0

@monsoon0 I can do you "non-Euclidean geometry for babies" amazon.co.uk/Non-Euclidean-…

8 favourites 4 retweets

In reply to @standupmaths

@standupmaths you're contributing to autocorrect resistance. Always complete the course!

0 favourites 0 retweets

I've just seen "another words" instead of "in other words". Is this common? I can hear the similarity, but can't imagine how to justify it

0 favourites 1 retweet

In reply to @sxpmaths

@sxpmaths do you have a file per section?

0 favourites 0 retweets

In reply to @Kevin_T_42

@kevin_tsang I'm aware of eggcorns. In this instance, I can't see how you'd think "another words" makes sense.

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths could you make something like a Makefile which produces a wrapper just to compile one section?

0 favourites 0 retweets

Oh myyy twitter.com/pikesley/statu…

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths a quick google turned up a package which claims to make this easier: tex.stackexchange.com/questions/7052…

1 favourite 0 retweets

TFW you're involved with so many different projects involving @stecks that you have four different messaging windows open to her at once

0 favourites 0 retweets

In reply to @alicekeeler

@alicekeeler @Thalesdisciple @monsoon0 @joboaler yes, I have issues with the book itself. But the title is fun!

1 favourite 0 retweets

In reply to @CardColm

@CardColm It's a bit mad that it doesn't exist.

0 favourites 1 retweet

In reply to @stecks

@stecks You need the http bit
talkingmathsinpublic.uk

0 favourites 0 retweets

In reply to @stecks

@stecks those losers?

0 favourites 0 retweets

In reply to @stecks

@stecks my continued fraction approximation says your capacity is either 35 or 486. Suspect it's somewhere in between

1 favourite 1 retweet

In reply to @stecks

@stecks

1 favourite 0 retweets

Five years later, this video I recorded about a mad way of representing SKI calculus got its first comment youtube.com/watch?v=fZQMmg…

3 favourites 0 retweets

Wahey! Just passed 50 @NclNumbas questions ready to use, created by my summer students. Only another 58 more to check...

0 favourites 0 retweets

As an academic, my pay offer this year is 1.7%, while my teacher wife's is 1%. In 29 years, my 0.8 FTE salary will catch up with hers

1 favourite 0 retweets

In reply to @christianp

(ignoring pay scales, and assuming the rates of increase stay the same, which they defo won't)

0 favourites 0 retweets

In reply to @christianp

But thanks to inflation at 2.9%, our combined pay will by then only be worth 64% of what it is today

1 favourite 0 retweets

In reply to @christianp

Supplementary question: have I given enough information for you to work out the ratio of our salaries?

0 favourites 0 retweets

In reply to @eleonorasfalcon

@eleonorasfalcon If I was working full-time, I'd be earning slightly more than her. Not much though.

1 favourite 0 retweets

I've just had an interesting discussion with a student. Too long for twitter, so described at length on mathstodon: mathstodon.xyz/@christianp/11…

4 favourites 0 retweets

Oh no, I'm trying to solve a boolean satisfiability problem! At least I know I can give up on looking for a fast, optimal solution.

1 favourite 0 retweets

In reply to @pozorvlak

@pozorvlak yes, so I need to look one up, rather than staring at my problem hoping for an optimal algorithm to pop out

1 favourite 0 retweets

where in the hierarchy of understanding does "I know just enough about this to be pedantic about it on twitter" lie?

3 favourites 1 retweet

In reply to @DrLucyRogers

@DrLucyRogers Bit grim but I like it

1 favourite 0 retweets

It turns out Taylor's paper on this was one of the first entries in Interesting Esoterica! read.somethingorotherwhatever.com/entry/Socolar2… twitter.com/christlet/stat…

1 favourite 0 retweets

How much effort would it be for BBC Sport to change their "Cricket" label to "Men's Cricket", since that's what it apparently means?

1 favourite 2 retweets

Increasing the number of people who will need treatment in the future is apparently preferable to letting people die now, but fewer of them twitter.com/jeremycorbyn/s…

0 favourites 0 retweets

In reply to @christianp

or, reject the false dichotomy and properly fund the health service, but that doesn't seem to be on the cards for the current government

0 favourites 0 retweets

I need to look at the number of questions approved for use instead of the number still to check, because both are growing #checkathon2017

0 favourites 0 retweets

🙇 twitter.com/stecks/status/…

0 favourites 0 retweets

This morning is an Alice Smith morning

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira ooh, now I want to make something which creates epochs with reasonable-sounding start times that coincide with lots of historical events

1 favourite 0 retweets

Today's editing trick: whenever students have used a name in a question statement, randomise it to a male or female one.

3 favourites 0 retweets

I think now is the time to write a @NclNumbas extension which gives you a random name and pronoun, picking uniformly from gender and culture twitter.com/ajk_44/status/…

1 favourite 0 retweets

omg someone named their baby "Json" in 2015 babycenter.com/baby-names-jso…

3 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira it's just not getting the same traction in the mainstream

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor deprecated in ES2017

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I just meant the message is deprecated...

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor a linter is like someone who insists on applying Latin grammar to English. Once you know enough to be confident, safely ignore.

0 favourites 0 retweets

In reply to @christianp

@Andrew_Taylor but I would recommend looking for a way of doing things that doesn't involve extending built-in prototypes

0 favourites 0 retweets

Rejecting the gender binary is leading me down some funny paths, such as this stackoverflow question stackoverflow.com/questions/2161…

1 favourite 0 retweets

OK, how about this? Have I got the rule for gender-neutral verb conjugation right?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @samholloway @ajk_44 I wrote this in the readme to the extension. There are more categories than just gender, so let the computer take it out of your hands

0 favourites 0 retweets

In reply to @christianp

@DavidKButlerUoA @samholloway @ajk_44 Furthermore, if you only ever use gender-neutral names, they can feel artificial. Sometimes the surgeon *should* be called Chantelle!

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @samholloway @ajk_44 Oh sorry, I ended up writing an extension to @NclNumbas which picks random people for you github.com/numbas/numbas-…

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Hmm.. Seems to be US-based, since the 5 ethnicity codes include "American Indian".

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Sorry, I misread. It's "Indian or Native American"

0 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @roger_mansuy I'm colourblind. Which ones are red? Is that why it was rejected?

0 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @roger_mansuy ta. Will colour vision be required for the rest of the book?

0 favourites 0 retweets

bloopdance.com is my new favourite website

0 favourites 0 retweets

In reply to @Akaria35

@Akaria35 @aperiodical 2014.

2 favourites 0 retweets

In reply to @Pecnut

@Pecnut @mscroggs seeing the Why bird again gladdens my heart

1 favourite 2 retweets

In reply to @theclairodactyl

@legolasismine @SamHartburn I won't be there this year, so you can have my spot. That's an order!

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Height of a house as a function of number of bricks used.

0 favourites 0 retweets

In reply to @christianp

@peterrowlett Apparent brightness of a light as a function of its distance. Strength of squash as a function of amount of water added

0 favourites 0 retweets

In reply to @jjaron

@jjaron the pic currently in the story is of an early design, so maybe they only drew the bit people care about

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson it's the new cycling utopia of Newcastle. We'll be ruddy Dutch by the end of the decade.

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith Something about this scene doesn't quite add up... is there a boy under that chair?

0 favourites 0 retweets

In reply to @mcrmathsjam

@mcrmathsjam I want to see what you come up with!

0 favourites 0 retweets

Just thought of a @Raspberry_Pi project to help train my dog: release a biscuit whenever someone knocks on the door

0 favourites 0 retweets

In reply to @stecks

@stecks I'll have to check our Numbas pen stocks. Not sure we still have 100 left.

0 favourites 0 retweets

Truth. Like many other American things, bafflingly old-fashioned. twitter.com/DavidKButlerUo…

2 favourites 0 retweets

In reply to @jjaron

@jjaron it's a password you can never change. What could possibly go wrong?

3 favourites 1 retweet

In reply to @theoremoftheday

@theoremoftheday to paraphrase Box, all models are wrong, and most of those are made up by psychologists

2 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt the latter

0 favourites 0 retweets

In reply to @mathhombre

@mathhombre @brilliantorg What error did they make?

0 favourites 0 retweets

In reply to @robotmaths

@AdamCreen That's your last chance - spot the SOLD sign!

0 favourites 0 retweets

Oh, happy π approximation day everyone!

25 favourites 9 retweets

In reply to @hnodrog

@hnodrog Too approximate

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans Yikes! What they don't know won't hurt them right?

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans Well, I was going to register 22over7.com to go with three.onefouronefivenine.com but I forgot. So we both failed!

0 favourites 0 retweets

In reply to @BikeMath

@BikeMath Huh wha?

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @QMUL I've had the same password at uni/work for the past 13 years. Every now and then I think I should change it, just in case someone's seen it

1 favourite 0 retweets

In reply to @hnodrog

@hnodrog In your head, or measured against something? The joy of that trick is occasionally getting it wrong!

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA There's a Neighbours board game?!

0 favourites 0 retweets

The Interesting Esoterica bot tooted one of my favourite paper titles today: A Smaller Sleeping Bag For A Baby Snake
mathstodon.xyz/@esoterica/140…

1 favourite 0 retweets

A nice post by David Bailey about recent "peer-reviewed" papers which give the wrong value for π.
mathscholar.org/pi-and-the-col…

4 favourites 7 retweets

In reply to @wblut

@wblut @nicoptere @ways000 @moebio @stevenstrogatz Fading the canvas a bit each frame makes nice pictures!

2 favourites 2 retweets

!!!!
The only thing that could beat this for me would be finding a Curta calculator. twitter.com/maanow/status/…

2 favourites 1 retweet

Is anyone interested in a copy of Indiana Jones and the Last Crusade for PC on 5.25" floppies? I think I'm finally ready to let it go

5 favourites 3 retweets

In reply to @victorolosaurus

@victorolosaurus God no!

1 favourite 0 retweets

But you're more likely to be calling when they do have a higher than average volume of calls twitter.com/cbahlai/status…

1 favourite 1 retweet

Is the degree to which a clock runs slow, like X seconds per day, dimensionless?

1 favourite 2 retweets

Using Firefox because some IT policy has unexpectedly removed Chrome from my work PC. Quite miffed I can't use multiple profiles at once!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo that's the kind of thing I'd want to follow a single-purpose account for

1 favourite 0 retweets

In reply to @Ingolf_He

@Ingolf_He Ahh, that rings a bell. I thought I'd heard of a way of doing it!

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Don't I know it! twitter.com/CIRCA_StAndrew…

1 favourite 0 retweets

Outlook summary of an email: "Hi Christian Perfect!"
Uh-oh, my old name!
Actual content:
"Hi Christian
Perfect!"
Just a coincidence 😌

2 favourites 0 retweets

99 @NclNumbas questions created by our summer students ready to use!
Time to take a break.

1 favourite 1 retweet

In reply to @christianp

@NclNumbas I got 99 problems and they've each been rigorously proofread.

0 favourites 0 retweets

What about that time I had Bell's palsy?
Or, like, any of the myriad other ways your face can change
bbc.co.uk/news/av/techno…

0 favourites 0 retweets

In reply to @christianp

PS not convinced they can tell identical twins apart if they're currently only 95% accurate (that's 1 in 20 incorrect)

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In reply to @christianp

Are they *sure* that no two people in a city of 9 million will look the same to this? The birthday paradox means they need a *big* ID space

1 favourite 0 retweets

In reply to @christianp

so, given the people involved aren't stupid: what's this system really for? What error rate have they decided to accept?

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In reply to @christianp

I suppose one way of getting anon people to test your face recognition system is to give them a monetary incentive to point out bad matches

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Perfect encapsulation of gender roles:
1) ideas v smiles
2) 'man' v 'girl'
3) girls' design more intricate
4) boys' one is cheaper!
🙅‍♂️ twitter.com/solvemymaths/s…

1 favourite 1 retweet

Delight in seeing a street cleaner with an anarchy tattoo. Split personality?

0 favourites 2 retweets

The end is just beginning to peek over the horizon...

#checkathon2017

0 favourites 0 retweets

In reply to @panlepan

@panlepan nice. Not sure it replaces the compass - what if you want to draw a circle whose radius isn't a whole number of cm?

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow the high-viz with council logo puts paid to that idea

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow @panlepan you have to put your pencil in a hole to draw a circle. It looks like they're every half centimetre. If only there was a high-res pic!

0 favourites 0 retweets

In reply to @christianp

@RobJLow @panlepan ahh, but five rows of holes. Looks more encouraging now

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths ooh, now I can't look at it an not want them lined up

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I'm going to be pedantic! Things become less true when we generalise axioms, e.g. anything following from the parallel postulate

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett no, but "lines cross once or never" is a different statement to "lines on a Euclidean plane cross once or never", though... (1/2)

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In reply to @christianp

@peterrowlett ... people before non-Euclidean geometry would've been happy saying they're effectively the same

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In reply to @peterrowlett

@peterrowlett right! So theorems don't always stay as big: by generalising, the part of the mathematical world they apply to gets smaller

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In reply to @peterrowlett

@peterrowlett my point is that Euclid's axioms were the only game in town. I'm getting at the idea that something that always applied becomes less so

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Not a day goes by that I don't internally thank @peterrowlett for asking for the 'except' operator in @NclNumbas

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett stick that on your REF

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!!!!

svahausa.com/collections/sv…

4 favourites 0 retweets

In reply to @be4zley

@be4zley @kevinrutherford Yes. I had half a thought that you can concoct some kind of 'derivative world' with base unit per-seconds, where it isn't dimensionless

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I'm getting the 16:43 to Paddington. Anything later would mean I get back to Newcastle around midnight

0 favourites 0 retweets

The @aperiodical slack channel now has a bot that sets up posts for us when we have half an idea. Maybe this will get us back on track...

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo Let me tell you I got a normal ticket for 37.50!

0 favourites 0 retweets

In reply to @christianp

@ColinTheMathmo (but thanks anyway!)

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Such a nice graph! twitter.com/CodyPhelan/sta…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge It does, but I'm impervious to nerdsniping while making my lunch

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge now I'm sitting down I can think about it. Has anyone got my new spa treatment, SINE/CURE?

0 favourites 1 retweet

In reply to @christianp

@icecolbeveridge best I can do with the metric "sum of squares of each word's length" is TEMPERA/MENTALLY

0 favourites 1 retweet

In reply to @christianp

@icecolbeveridge will we accept EXPECT/ORATION?

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @RealityMinus3 I'll chuck in MART/IN/GALE and be on my way

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The weather was very dramatic on Tynemouth pier this morning

6 favourites 3 retweets

Forget false positive or false negative - the long-rumoured Type III error, finally spotted in the wild. twitter.com/Richards_fiona…

5 favourites 2 retweets

In reply to @hollykrieger

@hollykrieger That's not how it is everywhere?!

0 favourites 0 retweets

Moderately nice print-yourself mathsy posters, $2 each. The ones about mathematicians are my favourites mathposters.net/mathematicians

14 favourites 7 retweets

Can you help me work out what mistake the company my mum bought furniture from have made in calculating a discount? mathstodon.xyz/@christianp/17…

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Done!!!
And a nice power of 2, so we can run an instant-knockout tournament to find the best question.
#checkathon2017

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc Yuck! Apart from anything else, the incredibly terse statements are very hard to work with.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Maths error in the last paragraph: closing ) instead of }

0 favourites 0 retweets

Sad when the HR department doesn't get the difference between 'discreet' and 'discrete'.

1 favourite 0 retweets

Uni is collecting data on disabilities so it can comply with non-discrimination law: 😊

Form only lets you pick one disability: 😒

1 favourite 0 retweets

In reply to @christianp

oh, it's a SAP form. Which means they've paid a huge amount of money for the form to be useless.
And it doesn't even save, anyway.

0 favourites 0 retweets

In reply to @christianp

seems HR's solution is an option "two or more disabilities".
So the form might as well be a checkbox "I'm disabled in some way".

1 favourite 0 retweets

In reply to @christianp

If someone's making the effort to tell you about their disability, why would you not want as much information as they're willing to give?

3 favourites 1 retweet

In reply to @christianp

What can you usefully do to help, knowing that X % of your research employees have "a specific learning difficulty" (but not which one)

0 favourites 1 retweet

In reply to @JamesMoosh

@JamesMoosh Quite. But this information won't help them comply, since they need to know exactly what's up so they can accommodate and adjust

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge huh! I was convinced I'd written "TeX error". You might be right!

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz I've seen it from a few people. Your tweet wasn't the immediate trigger, no

0 favourites 0 retweets

In reply to @pkrautz

@pkrautz why?

0 favourites 0 retweets

I've come up with a cracking one for @wacnt: number of babies born in the UK during the minute's silence on 11/11

0 favourites 0 retweets

August

In reply to @notonlyahatrack

@notonlyahatrack @bhampton271828 you might find some more inspiration at aperiodical.com/2013/04/art-fo…

3 favourites 0 retweets

In an arty mood so I'm picking random entries from read.somethingorotherwhatever.com to illustrate.
First: read.somethingorotherwhatever.com/entry/NonSexis…

0 favourites 0 retweets

Email from local UCU rep says that the pension fund's deficit has increased by 9,000,000,000,000. Is my professor in line for a superyacht?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @panlepan have you seen math.toronto.edu/~drorbn/Galler… ?
Click on a wallpaper group to see photos of real-world examples

2 favourites 0 retweets

In reply to @jjaron

@jjaron I'm amused by their outrage at the idea boys should know how it works as well

0 favourites 0 retweets

Clever paper folding *and* chocolate! Nobody even try to stop me!
visuall.net/2017/07/29/uto…

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN @standupmaths Like this?
"Up above / down below / to the left / you're too slow / move along a fifth axis / higher-dimensional salutation praxis"

1 favourite 0 retweets

Boring maths tweet: is there a comprehensive taxonomy of topics in maths up to undergrad level? The mathcentre one is very spotty

1 favourite 1 retweet

In reply to @tomas_lbl

@tomas_lbl I'd like a bit more detail - that page has two layers of categories - and Khan Academy is not famously rigorous

1 favourite 0 retweets

In reply to @michaeljgrove

@michaeljgrove @maanow The mathcentre one is based on that. I want it to include things like sums of series, and GCDs and LCMs

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @Dragon_Dodo make the dog a member of the parachute regiment and you're fine

0 favourites 0 retweets

In reply to @peterseibel

@peterseibel @CompSciFact that's a corollary of "your keys are always in the last place you look"

4 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @Pecnut So only a problem if the train doesn't reach capacity? Because you're taking a seat from someone who could make the more popular journey

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut HI EVERYBODY! IT'S ME, DR {FIRSTNAME}!

3 favourites 0 retweets

I'm old so I've stopped buying DVDs. Humanity's clever so storage gets cheaper. One day it'll be affordable to rip my DVDs. But not yet.

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith ahh, what compression ratio do you get?
My dream is to replace the (as compact as it can get) boxes of DVDs with a RasPi + big HDD

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge they work for netflix, but because of Economics they don't make everything they've ripped available at once

0 favourites 0 retweets

What to do when the trisector comes.
mathstodon.xyz/@esoterica/191…
#illustratedesoterica

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight @C_J_Smith Depends if you're the kind of person who enjoys mindless, repetitive tasks. Maybe while listening to a podcast...

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith @drvinceknight which means I have... 15 weeks to get this done!

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith @drvinceknight might be why I'm coming up with displacement activities!

2 favourites 0 retweets

this must be what my friends hear when I start talking about different kinds of infinities twitter.com/DrWhoUSA/statu…

1 favourite 0 retweets

The graph showing the evolution of languages is not a directed acyclic graph.
This picture should have lots more loops in it! twitter.com/qikipedia/stat…

1 favourite 0 retweets

Step 1: set up private GitLab for the department
Step 2: fill colleague's repo with issues
Step 3: hear him groan through the partition wall

2 favourites 0 retweets

In reply to @RobJLow

@RobJLow kinds as in countable v uncountable, and the sizes of each

0 favourites 0 retweets

In reply to @pozorvlak

@pozorvlak exactly: it's not acyclic

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow did you see aperiodical.com/2017/06/the-cu… ? It gets more and more mind-blowing

0 favourites 0 retweets

Had to compare rounding 0.67*x, 2/3*x and 0.66*x to two decimal places. Plot shows different combinations of agreement. Interesting!

0 favourites 1 retweet

Need to try! twitter.com/lesliewattsart…

2 favourites 0 retweets

The wife has offered to paint me in the nuddy. "For balance" 😐 twitter.com/IanSimmons/sta…

2 favourites 0 retweets

@IanSimmons Based on a painting by William Blake, so I think it counts!

0 favourites 0 retweets

In reply to @jjaron

@jjaron They're equivalent in bee-ano arithmetic

2 favourites 0 retweets

👍👍👍 twitter.com/danielcolquitt…

1 favourite 0 retweets

In reply to @aperfect

@aperfect @DJIGlobal You've never bought yourself a drone! The horror!

1 favourite 0 retweets

I've got a little bit hooked on mini metro

2 favourites 0 retweets

It's cumulonumbers man! twitter.com/ZoeLGriffiths/…

1 favourite 0 retweets

I reorganised the @MathJax docs so the top hierarchy is much less cluttered. Config options easier to find now! docs.mathjax.org/en/latest/inde…

1 favourite 5 retweets

In reply to @plusmathsorg

@plusmathsorg typo: "When A=D the surface area of the come"

0 favourites 0 retweets

Have just discovered via @CyclingEclipse that there's a town in Oregon called Philomath. brb, setting up a @numberphile knock-off

1 favourite 0 retweets

Already knowing about it, I was expecting to be underwhelmed by the Giant's Causeway. I wasn't - it's truly incredible. twitter.com/MarcusduSautoy…

1 favourite 0 retweets

In reply to @divbyzero

@divbyzero @myfavethm @SongExploder I tried sth similar: get a mathmo to tell me about something they're currently thinking about, until I understand
aperiodical.com/2017/06/the-cu…

0 favourites 0 retweets

There's a fascinating conference on gerrymandering happening right now. Follow #gerrymandr and be shocked at the shape of American districts twitter.com/j_lanier/statu…

1 favourite 0 retweets

This looks like an instant classic twitter.com/MathPaper/stat…

2 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett @icecolbeveridge Just went down 50%

2 favourites 0 retweets

why is the co-op trying so hard to sell me electrical goods?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA I think I have a solution. Are degenerate triangles not really triangles?

1 favourite 0 retweets

In reply to @panlepan

@panlepan @DavidKButlerUoA well, since you've spoiled it, I'll add that I reckon with non-integer lengths, the shortest stick is 30/13cm long. (minus epsilon)

2 favourites 0 retweets

In reply to @panlepan

@panlepan @DavidKButlerUoA yep, that'd be ε.
BTW, unicodeit.net is very good - type LaTeX, get unicode

3 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 the blog Turismo Matematico has a ton of mathsy things to see in Florence: mateturismo.wordpress.com/?s=florencia

0 favourites 0 retweets

If you want to do some maths sightseeing on your Summer hols:
1) look up your destination's name in Spanish
2) go to mateturismo.wordpress.com

3 favourites 6 retweets

In reply to @jjaron

@jjaron that's madness! When do you listen? While working?

0 favourites 0 retweets

Clever Hans is having a little sleep.

0 favourites 0 retweets

In reply to @johndavidread

@johndavidread @aperiodical Oh dear! I was sure I'd seen Robert Recorde, but must've been somewhere else. I can recommend the Tenby museum for its tiny Recorde exhibit

1 favourite 0 retweets

LOVE THIS twitter.com/ajk_44/status/…

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 Children sufficiently young to play this might not be accurate enough to do the sum properly, and will get cross when incorrectly accused

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 if the kids work out your trick, you can offer to fix it with scores 1,6,9,54,81

1 favourite 1 retweet

In reply to @christianp

@ajk_44 oh! Or 1,2,5,13,34

1 favourite 0 retweets

In reply to @christianp

@ajk_44 it's possible I've over-thought this codepen.io/christianp/ful…

2 favourites 1 retweet

In reply to @CardColm

@CardColm I'm with windows - uninstall mcafee!

0 favourites 0 retweets

Is there a word for when autocorrect changes a misspelt word to 'unintelligible', making your text... unintelligible?

2 favourites 0 retweets

In reply to @CardColm

@CardColm well, they're offering Windows Defender

0 favourites 0 retweets

I'm having a lovely morning listening to this twitter.com/laRadioNova/st…

1 favourite 0 retweets

In reply to @CardColm

@CardColm certainly better than McAfee.

0 favourites 0 retweets

I went to refurbished mcdonald's in town yesterday. It's got those whizzy ordering screens, and I noticed it offers other languages...

0 favourites 0 retweets

In reply to @christianp

so of course I chose Welsh. While bits were in Welsh, there was a lot of English, and my receipt was completely English. What's the point?

0 favourites 0 retweets

Have I done a "find the link to read the article" for CUP journals before?
Try this one. Took me two passes, then some lateral thinking

2 favourites 1 retweet

In reply to @christianp

That's this page: cambridge.org/core/journals/…
Once you get to the article: apparently the gazette is typeset in Word!

0 favourites 0 retweets

In reply to @Mathematical_A

@Mathematical_A It's an icon, with no label, hiding next to some social sharing buttons.

0 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass ooh good, we've been meaning to catch up with it

0 favourites 0 retweets

This visualisation of a baby's sleeping patterns is giving me the fear reddit.com/r/dataisbeauti…

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @MathTeachScholl @joeykelly89 @nomad_penguin Can I ask one number to combine with itself?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Ahh, got it

0 favourites 0 retweets

In reply to @DrCaroSummers

@DrCaroSummers Similar thinking is why TEFL became EAL!

0 favourites 0 retweets

Excellent cover! twitter.com/ProfileBooks/s…

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @RogoNic Now I wonder what solution you've got if the answer to this question isn't necessarily yes

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @RogoNic Wrote this earlier but it seems to have got lost.
Pick x,y.
a=x+y
b=a+x=2x+y
c=b+x=3x+y
d=c+x=4x+y
e=c-a=2x
f=d-a=3x
g=e/x=2
h=f/x=3
1=3-2

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @RogoNic If zero is a number, you need a first step to check x isn't zero by checking if x+y = y.

0 favourites 0 retweets

JSTOR show how to make reading articles easy:
"Download PDF" button to right of metadata, then repeated next to "To read the article:" later

1 favourite 1 retweet

Am now three issues behind on @cabinetmagazine. I need to do more electronics-free travelling so I can catch up!

0 favourites 0 retweets

Purdy! twitter.com/panlepan/statu…

6 favourites 1 retweet

"100 problems around scalar curvature"
Info: newton.ac.uk/seminar/201708…
Live stream: newton.ac.uk/events/streami… twitter.com/NewtonInstitut…

4 favourites 5 retweets

In reply to @alisonkiddle

@ajk_44 I can do colourblindness! And autism, obv.

1 favourite 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel @JSEllenberg Yes. aperiodical.com/2017/08/p-migh…

0 favourites 0 retweets

Deep in the depths of an enormous wodge of knockout.js code, I wish Elm had been around when I started. Now I understand 'technical debt'

0 favourites 0 retweets

I'd never heard of Piet Hein's grooks before. I like them. poetrywithmathematics.blogspot.co.uk/2017/08/the-wi…

4 favourites 1 retweet

In reply to @mathpunk

@mathpunk I've done lots of inkscape and svg hacking! I can probably (possibly) help!

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt 128. I assume you've got a different answer?

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt To interpret it that way you'd have to have a non-native understanding of English grammar. Consider "how many 1/4 in 1"

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt Yeah, it's poorly-worded at best, but an answer of 8 is very wrong

0 favourites 0 retweets

In reply to @mathpunk

@mathpunk @___Mc__ @elplatt Not at my PC now, but: you might be able to get away with flipping your viewbox height and wrapping the whole scene in a transformed <g>

0 favourites 0 retweets

In reply to @christianp

@mathpunk @___Mc__ @elplatt Just to get the global coords you expect

0 favourites 0 retweets

I've had some questionable pizzas in France before, but that is an abomination twitter.com/roger_mansuy/s…

2 favourites 0 retweets

Was going to say I don't think I can cope with the run-up to the war again, but looks like the real news is going to do it anyway twitter.com/RealTimeWWII/s…

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @ben_nuttall why send two spanners up?

1 favourite 0 retweets

This is bums. twitter.com/DrBennison/sta…

0 favourites 0 retweets

Apparently I have muscle memory for typing the word 'availability'. My fingers just typed it all with no real intervention from m'brain

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow Play with Scratch!

0 favourites 0 retweets

In reply to @jamestanton

@jamestanton no: N=7
1,2,3,4,5,6,9
11,7,8,14,10,13,12

0 favourites 0 retweets

In reply to @TeXtip

@TeXtip I'd love to read that, but it's paywalled

3 favourites 0 retweets

In reply to @JimPropp

@JimPropp And now that's what I'm going to call them!

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel I'm as ready as someone nowhere near the eclipse can be

0 favourites 0 retweets

@efrataitel whaaaaa! How?

1 favourite 0 retweets

Facebook messenger now renders LaTeX! Wrap your message in \[ and \] twitter.com/efrataitel/sta…

146 favourites 111 retweets

In reply to @panlepan

@panlepan don't bother - it's only on the desktop site

2 favourites 0 retweets

In reply to @d_spiegel

@d_spiegel how long did that take? Did you plot out the radii first?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Looks like only in messenger

0 favourites 0 retweets

In reply to @gg1613gon

@Ggimenez74Ho It only works on the desktop site, not in any of the apps

1 favourite 0 retweets

In the middle of Eldon Square: advert for flights from Teesside airport to Aberdeen. Who is that going to appeal to??

0 favourites 0 retweets

@CopernicusCF Yeah, but it doesn't make sense starting from Newcastle

0 favourites 0 retweets

In reply to @eleonorasfalcon

@eleonorasfalcon @CopernicusCF rome2rio.com says pretty much the same time, ignoring the time spent at airport departures. Train costs half as much as flying

1 favourite 0 retweets

@PicSouWiki It only works on the desktop site

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson they serve different methods depending on your device

0 favourites 0 retweets

In reply to @CyclingEclipse

@CyclingEclipse @standupmaths did you see that the name of the road joining that is given to TWO decimal places? google.co.uk/maps/place/733…

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson Maybe it's an imperative?

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson I would've gone with "Maybe". You're setting yourself up for a fall here.

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson The eternal goal of the mathematician: say something technically true, but effectively pointless

2 favourites 1 retweet

A Big Mac, modulo the action of S_3 on bread

5 favourites 0 retweets

@mikegibson2010 If he's moved away from a time-based approach, then the aphorism about stopped clocks applies

0 favourites 0 retweets

Do any of my followers write fiction, and have a reference for the "flip a coin to determine gender" rule to ensure gender balance?

1 favourite 0 retweets

In reply to @christianp

I've read about that being a thing you can do to easily subvert stereotypes, but can't remember where

1 favourite 0 retweets

In reply to @panlepan

@panlepan I read that right-to-left as divergence and spread

3 favourites 0 retweets

In reply to @robinhouston

@robinhouston Good, but requires good working memory. I'm writing a blog post about how I used ONS data and weighted sampling to take this out of my hands

0 favourites 0 retweets

I'm tech support for a @NclNumbas resit exam. I've got my most reassuring t-shirt on

3 favourites 0 retweets

This is the work my summer students did. They made loads! And it's quite good! twitter.com/NclNumbas/stat…

2 favourites 0 retweets

The 1st and 2nd lines of my new address rhyme and the post code is the right no. of syllables so of course I made a limerick to announce it

2 favourites 0 retweets

Email from @stecks: Can you make me a thing?

Me: I've already made the thing, a year ago.

#clairvoyancy

4 favourites 0 retweets

Enjoying this game which is like mastermind but for inductive logic - you can't be *sure* you've spotted the pattern
play.google.com/store/apps/det…

2 favourites 1 retweet

Dyspraxia, moving day, and a pregnant wife don't mix

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts Thanks! Forgot I hadn't really mentioned it here properly

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts We've been keeping strict Facebook silence. Not really sure where to draw the line - mainly want to avoid being annoying

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Love this! twitter.com/MissMastalio/s…

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In reply to @pkrautz

@pkrautz I read that as 'Kind legen' and wondered what on earth you could be doing

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Apparently it's not allowed to name babies after fictional elephants

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SWOTS FOR THE SWOT GOD twitter.com/edwest/status/…

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I started using a Python package, thought of a feature it needed, so added it myself. Open source is ace! github.com/Frozen-Flask/F…

2 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts I got pretty good at guessing which balls were whose until the boy over the back got a Frozen ball

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Sunday is time for the Big Questions twitter.com/JanvierUK/stat…

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In reply to @Simon_Gregg

@Simon_Gregg @mpershan Spoilers aperiodical.com/2016/05/maths-…

1 favourite 0 retweets

In reply to @elinoroberts

@elinoroberts Happy birthday Squid!

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In preparation for #tmip17, I've updated my homepage with a list of interactive maths things I've made somethingorotherwhatever.com/#interactives

5 favourites 1 retweet

In reply to @jamesgrime

@jamesgrime at first I was like "oh, it's a fixed point joke!"
Then I groaned.

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I'm getting a strong VGA screensaver vibe

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Setting off for 3 days in Bath, @NclNumbas workshop first and then #tmip17. Or, this train terminates at Guildford, I could just go there

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In reply to @christianp

@NclNumbas Though I probs won't, because Cross Country's idea of how long a human's legs can be differs from mine.

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Cor, Birmingham New Street has changed a lot!

1 favourite 0 retweets

In reply to @miclugo

@miclugo There is no idiomatic way to do something in R.

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In reply to @miclugo

@miclugo Rly?

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Well that wouldn't work. It'd take forever to dry out!

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @Raspberry_Pi Should you start weighting full stops more highly as the sentence gets longer?

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In reply to @Andrew_Taylor

@Andrew_Taylor @Raspberry_Pi That's one way. Do you want it to be technically possible for really long sentences to happen sometimes?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA I did!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA it's not a classic of the genre, but enjoyable enough

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They found a way to contain him... but for how long?

1 favourite 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep My sister-in-law has many of the same mentalnesses I do, and oh my God she wastes so much money! Poor impulse control doesn't help though

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In reply to @mathforge

@mathforge @twolivesleft Nice! A dodecahedron is Hamiltonian, so you should be able to have less abrupt rotations, shouldn't you?

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In reply to @Pyfagorass

@Pyfagorass Considering it as a side gig?

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September

Spent 15 minutes renewing letsencrypt certificates. I feel like I get reminders more often than I should.

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In reply to @FryRsquared

@FryRsquared @AdamRutherford that's a nice kitchen! (I'm having a new kitchen put in at the mo)

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In reply to @ColinTheMathmo

@ColinTheMathmo I have a horrible suspicion that me updating mathstodon has caused your script to retweet everything

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@llewmihs And you're still nowhere near the top, Joe!

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I did it!!!

(this will only appeal to other people who have played this game)

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A lot of people at #TMiP17 have asked me what I do. I wrote "a day in the life of CP" for my wife's primary class aperiodical.com/2017/03/a-day-…

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Interesting - while connected to eduroam at Bath, I can access JSTOR using their subscription. That's either very generous or an oversight

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It's only 8:45am and I'm already melting. That settles it - I can never live in the south 😰

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In reply to @MathsTeacherKYP

@MathsTeacherKYP @CambridgeMaths Over 100 is PHENOMENAL. Did they really do it? Big respect!

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In reply to @MathsTeacherKYP

@MathsTeacherKYP @CambridgeMaths 60 is still extremely good! I should make certificates

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#TMiP17 @ColinTheMathmo showed mathstodon.xyz. It's like twitter, but with LaTeX maths!

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#tmip17 hat problems read.somethingorotherwhatever.com/entry/item59

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In reply to @WebbMaths

@WebbMaths I can tell mine isn't just by looking at the last digit. In fact, I'd have to cut it down to just the first 2 digits before there's a chance

1 favourite 0 retweets

Just passed the place where they print the daily mail. I scowled

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In reply to @C_J_Smith

@C_J_Smith Oh, so it is Reading pride today! I just saw a happy chappy with a rainbow flag on the station platform as my train passed through

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A mere six and a bit hours after I left #TMIP17, I'm back home 😴😴😴

5 favourites 0 retweets

In reply to @MarcusduSautoy

@MarcusduSautoy That is a nice cover!

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In reply to @alisonkiddle

@ajk_44 Nice inadvertent pun there

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An intriguing spam waiting for me in my work inbox this morning

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In reply to @mathforge

@mathforge @chalkdustmag @aperiodical send something in!

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PrimeGrid has found a new biggest generalised Fermat prime, and 12th largest of all known primes:
919444^1048576+1

primegrid.com/forum_thread.p…

12 favourites 17 retweets

I've just remembered Diff Collector exists: mkagenius.github.io
Insultingly easy idea, aggravatingly hard in practice

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Making a load of @NclNumbas questions on functions. Strategy: start with a big question like "when is a function injective", then (1/N)

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In reply to @christianp

@NclNumbas then attack it from lots of angles, e.g. give partial def of f, then "f(b) = 2 and f is injective. What's b?" (2/N)

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In reply to @christianp

@NclNumbas The big question could be answered on paper, but since we can only mark numbers or multiple-choice selections, need to ask more detailed qs

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On a toilet with two flush buttons, the sizes of the buttons correspond to:

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It's 2^10 o'clock! Split something in half 10 times!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA 44^55 + 4455 ↔ 44^55 - 4455
49^5 + 495 ↔ 49^5 - 495
54^99 + 5499 ↔ 54^99 - 5499
76^5 + 765 ↔ 76^5 - 765
88^2 + 882 ↔ 88^2 - 882

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Feel like computing digits of π might have some use down the line? *Really* waste your time computing more terms of oeis.org/A100129

4 favourites 1 retweet

In reply to @ytandrewdawson

@ytandrewdawson @_primes_ Immeasurably more useful than A100129

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Hijacking this to say those place names sound like an Only Connect sequence.
Catford, Ladywell, Dogger Bank, Manchester, Mumbai, … twitter.com/helenarney/sta…

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In reply to @CounterOfSheep

@CounterOfSheep Another member of the Friday cool-down club!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge well done whoever spotted that an X for an election doesn't make sense in the US! (and well done you too, obv)

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In reply to @icecolbeveridge

@icecolbeveridge seems my instant reaction to you tweeting is to put my Massive Pedant hat on

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Outlook doesn't let you snooze reminders for less than 5 minutes. My attention span isn't always that long!

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Is google's unending creepiness a price worth paying for the ability to type in a vague description of a place and see photos I took nearby?

1 favourite 0 retweets

In reply to @extremefriday

@extremefriday Nice! I love the chicken mcnugget puzzle

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What does it say about me that my first thought was "Tickle-Bot"? twitter.com/futurism/statu…

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I absolutely love this.
Has a chamber choir soundtrack which you shouldn't miss.
vimeo.com/231498722

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Trying to find appropriate gifs to use in a blog post. I've never felt so old.

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I'm making some @NclNumbas doodads for a 1st year set theory course. I'd like to know what you think, please! checkmyworking.com/misc/interacti…

3 favourites 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo @NclNumbas oh yeah, the old android browser is way out of date. Have decided, like old IE, to ignore it!

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Where's that John Carmack quote about using a function? twitter.com/JavaScriptDail…

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@efrataitel @NclNumbas oh yes, good idea

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In reply to @monsoon0

@monsoon0 There are only two maths papers with the word "cow" in the title. arxiv.org/find/grp_math/…
This must be rectified!

6 favourites 2 retweets

Wow!

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Convergent evolution: this month two people have shown me tools they've written to convert LaTeX documents to HTML, written in Python 2.

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In reply to @DavidKButlerUoA

@DavidKButlerUoA One of my first year lecturers took great pains to teach us how to write a really loopy ω so it's easy to differentiate

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A short survey:
cow: 2
sheep: 0
pig: 0
chicken: 6
horse: 2

banana: 5
mango: 0
orange: 1
apple: 9
tomato: 0
potato: 2 twitter.com/monsoon0/statu…

6 favourites 5 retweets

In reply to @monsoon0

@monsoon0 most match "Appl." as part of a journal name. In fact there are only two with the exact word "apple"

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There's a "your dog scratched my front bumper!" level of introspection going on here bbc.co.uk/news/uk-englan…

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The latest version of Mastodon fixes a lot of the little UX oddities. An excellent time to come and play on mathstodon.xyz

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In reply to @peterrowlett

@peterrowlett @AlexCromb Well done, but also: Toon Army!

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The person who wrote this deserves a ruddy medal for communicating risk clearly and without distraction nhs.uk/news/pregnancy…

1 favourite 0 retweets

In reply to @SLSingh

@SLSingh I think maybe not: Cajori says the same symbol was used for subtraction earlier

3 favourites 1 retweet

In reply to @christianp

@SLSingh twitter won't let me paste a tripod link (?!!), so here's an attempt at hiding it in bitly: bit.ly/1Ce4CoJ

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In reply to @Pecnut

@Pecnut I haven't even been waiting for anyone to ask

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In reply to @Pecnut

@Pecnut All gone!

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I've set up another auto-tooting account: mathstodon.xyz/@dudeney_puzzl…. It's going to toot a puzzle from "Amusements in Mathematics" once a day.

2 favourites 1 retweet

In reply to @eblueaxe

@eblueaxe Fascinating! What are they used for?

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In reply to @eblueaxe

@eblueaxe is there a reason they're polyhedra, and not round?

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In reply to @FOTSN

@FOTSN @standupmaths is a dongle really yours until you've cattle-branded it?

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There's a moderately accessible explanation of Lehmer's number by Eriko Hironaka at math.fsu.edu/~aluffi/archiv… twitter.com/JSEllenberg/st…

1 favourite 2 retweets

In reply to @christianp

some more on Lehmer's problem dredged from the internet archive at web.archive.org/web/2013102720…

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In reply to @jjsanderson

@jjsanderson @helenarney @soozaphone it's non-integer if we're brave and buy tickets - exactly one week before the due date!

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Another cracking rainbow!

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In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful I've got a million things I haven't had time to type up on the aperiodical

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This is an idiom that can run and run twitter.com/prezflipflops/…

1 favourite 0 retweets

In reply to @MathsDunbar

@MathsDunbar @Mathematical_A crikeyyy, it's the land graphic design forgot!

2 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall For the price of a can of coke to go up from 70p to £1250 in the 18 months until March 2019, monthly inflation would have to be 151%

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In reply to @christianp

@ben_nuttall this isn't unprecedented: inflation as bad as that has happened 30 times before, according to upload.wikimedia.org/wikipedia/en/8…

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Welp, I just found out that the HTML spec says <textareas> must normalise all linebreaks to \r\n on submit. How have I never noticed before?

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Incredible! A playable game of tetris, on a RISC computer, running inside the game of life! codegolf.stackexchange.com/questions/1188…

4 favourites 3 retweets

In reply to @aperfect

@aperfect Get you with your clickbait

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Newcastle @MathsJam (@NEWCMathsJam) is alive again! This Tuesday, the 19th, at the Charles Grey pub but now coordinated by Michael Gibson!

2 favourites 1 retweet

Just had a 33 minute convo with a EDF chap about the way those many-clocks meters work. Resisted playing the "I'm a mathematician" card

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In reply to @christianp

The nub of it is that this reads 80822, not 81822, because each dial rolls continuously, like how an hour hand is v close to 12 at 11:55

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In reply to @christianp

you'd think a utility company support person would be well-versed in that kind of thing...

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In reply to @gg1613gon

@Ggimenez74Ho There'll be gears behind the face to connect them all

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In reply to @robeastaway

@robeastaway I think it already has! Somewhere deep in the depths of @MathsJam's timeline

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In reply to @aperfect

@aperfect Because behind the face they're driven by linked gears

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In reply to @pkrautz

@pkrautz @ossia @MathJax @NUMBAS @zorkow That's @NclNumbas

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In reply to @mathforge

@mathforge @chalkdustmag @aperiodical yep!

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In reply to @christianp

@mathforge @aperiodical Preferably reworked to be more of an essay than a permanent reference

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In reply to @outofthenorm2

@outofthenorm2 @ColinTheMathmo Strong and stable!

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In reply to @GNMH_MathsHub

@GNMH_MathsHub @Central_Exc Ooh, that looks like a good room for maths!

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A quiet moment at the #NCLvisit maths and stats stand means I can work on my "is this prime" game skills

3 favourites 0 retweets

In reply to @bluecombats

@bluecombats @stecks @MathsJam an elf has fixed it

1 favourite 0 retweets

Koalas are so good at hanging on to things! This little guy tookt it a bit far though bbc.co.uk/news/world-aus…

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I love seeing a bit of #buildermaths in the new house

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A tricky dominoes puzzle on @dudeney_puzzles@mathstodon.xyz today: mathstodon.xyz/@dudeney_puzzl…

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One of the bad things about getting old is I don't have the time to keep track of when an album comes out after hearing a good single

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In reply to @njj4

@njj4 @icecolbeveridge you're missing out on some lovely music

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In reply to @njj4

@njj4 @icecolbeveridge depends very much on your taste! I listen to stations like amazingradio.com, novaplanet.com and 6Music to hear new stuff

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In reply to @FryRsquared

@FryRsquared @AdamRutherford That caveat about people with family trees from outside the UK is putting pretty massive load on the word "we" in the title.

1 favourite 0 retweets

In reply to @christianp

@FryRsquared @AdamRutherford how much more info would you need to estimate the proportion of all humans descended from Edward III? Is that in the book?

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This is taking forever to finish but it's so cool - will make all sorts of previously tricky stuff possible in Numbas twitter.com/NclNumbas/stat…

0 favourites 0 retweets

In reply to @NEWCMathsJam

@NEWCMathsJam I'm setting off now. Will be a little bit after 7 because I need to pop into my office first

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Ahoy @MathsJam! Resurrected @NEWCMathsJam is happening, but Mike didn't charge his phone so can't tweet 😑
(what's this?)

4 favourites 2 retweets

In reply to @NEWCMathsJam

@NEWCMathsJam Michael is practising his harmonic brick balancing

1 favourite 0 retweets

In reply to @NEWCMathsJam

@NEWCMathsJam SET dice has a board! Not sure how I feel about this

1 favourite 1 retweet

In reply to @NOTMathsJam

@NOTMathsJam @MathsJam @mathpocalypse @standupmaths Another interface to get those is unicodeit.net

1 favourite 0 retweets

In reply to @aperfect

@aperfect Suggests you're looking at something expensive

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp Ask them what "within 1 day" would mean, and work from there

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I love this site twitter.com/davidsirota/st…

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In reply to @JimPropp

@JimPropp Call it "fencepostgate" and you've got a real scandal on your hands

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I think our new house is haunted by Mr Blobby

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared @icecolbeveridge You've got a little something on your face there

1 favourite 0 retweets

WELCOME TO ELESTAWNC! #NUSUfreshers

1 favourite 0 retweets

Just saw this on metafilter and oh my god it's true: the UK is Europe's Quebec

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Interesting, and there's a print-your-own version for $2! veldigames.net/shop/quadrum-p… twitter.com/haggismaths/st…

0 favourites 0 retweets

In reply to @christianp

although not calling it "2Dominoes" is a massive missed opportunity

1 favourite 0 retweets

In reply to @miclugo

@miclugo the UK's Quebec. It's Quebecs all the way down.

1 favourite 0 retweets

They wrote: "Spare sandwiches in the school office after stage 1 induction"
They meant: "Who wants the latest flu strains?"

1 favourite 0 retweets

In reply to @lostinrecursion

@lostinrecursion @henryseg @Gelada I didn't have that much, but I commissioned @Gelada

2 favourites 0 retweets

In reply to @Gelada

@Gelada @lostinrecursion @henryseg very happy! Here are some photos: flickr.com/photos/christi… (though flickr seems to have lost some!)

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I'm really enjoying solving a puzzle each morning thanks to mathstodon.xyz/@dudeney_puzzl…. Yesterday's was nice and simple mathstodon.xyz/@dudeney_puzzl…

9 favourites 6 retweets

I've just discovered that the windows command prompt maps π to p and ∞ to 8 (yes, the figure eight). That's less helpful than just giving up

3 favourites 2 retweets

In reply to @JimPropp

@JimPropp @jamestanton @GlobalMathProj here you go: codepen.io/christianp/ful…

2 favourites 0 retweets

In reply to @jamestanton

@jamestanton @GlobalMathProj can you send me an email with a list of requirements? (christianperfect@gmail.com)
I'll try to make a proper thing tomorrow

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In reply to @mathsjem

@mathsjem by @sangwinc!

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths where's that from? Looks like a good companion to lkozma.net/inequalities_c…

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp @jamestanton @GlobalMathProj OK, I've done some crude things to try and place the dots in open space

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welp, @jamestanton has comprehensively nerdsniped me again with exploding dots

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths but of course!

1 favourite 0 retweets

It's my day off.

11 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep #fridayclub toot toot!

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo Looks like your retooter loses newlines

1 favourite 0 retweets

In reply to @GNMH_MathsHub

@GNMH_MathsHub @Central_Exc Thanks for having me! I really enjoyed it

1 favourite 0 retweets

October

Peril, now with double the genus!

14 favourites 4 retweets

In reply to @christianp

45 minutes later, I realise that my phone doesn't know 'persil'

1 favourite 0 retweets

It's a 10:30am lunch day...

2 favourites 0 retweets

A nice short explanation of what HoTT's about twitter.com/apgox/status/9…

1 favourite 0 retweets

Not quite - it's 100 questions with solutions for each module of a standard-ish degree programme twitter.com/alexbellos/sta…

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts yes!

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo what's the second type of Erdos number?

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp I diagnose your child as "ill to one significant figure"

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo ahh, a counter to the "I had a holiday job at CERN" route

1 favourite 0 retweets

In reply to @maddiemoate

@maddiemoate that link seems to go to an ad for a game called Homescapes

1 favourite 0 retweets

Yesssssssss

2 favourites 0 retweets

Today @dudeney_puzzles@mathstodon.xyz is taking a break from puzzles to show how to make a smoke vortex box mathstodon.xyz/@dudeney_puzzl…

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway When I'm on the metro, I factorise the number of the carriage I'm in. Normally boils down to some small primes and one I have to look up

0 favourites 0 retweets

I'm looking at an A Level past paper which seems to have been typeset in Word. Surely not?

1 favourite 0 retweets

😲 twitter.com/Pecnut/status/…

0 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag I'm opting to preserve my 100% win record at the quiz.

1 favourite 0 retweets

It took me five minutes of reading this page before I spotted the pun community.arm.com/iot/embedded/b…

0 favourites 0 retweets

My desktop menagerie are about to drop the hottest album of 2017

2 favourites 0 retweets

In reply to @monsoon0

@monsoon0 have you seen my collection of attention-grabbing titles? read.somethingorotherwhatever.com/collection/att…

0 favourites 0 retweets

Pears are lush

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Of course. Variety selection is v important

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut I've always stayed away from those kinds of terms, but I have used "really nice" in the past

1 favourite 0 retweets

We're gonna need a bigger spud

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?!?!?!

usb.brando.com/usb-retro-tele…

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN Hopefully you're not staying in the same premier inn I did when I was there. Well-located for mathematicians and drug dealers, it turned out

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK Any of the ℵ₁ other Dimblebies

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts @jjsanderson @gwydionuk Omg Mrs L-P will go NUTS for this

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK *hug*

0 favourites 0 retweets

I have a new favourite maths question ever twitter.com/daveinstpaul/s…

9 favourites 4 retweets

In reply to @Gelada

@Gelada A very familiar theorem to anyone who used DOS-era paint programs

2 favourites 0 retweets

Ooooh, this is a nice puzzle! mathstodon.xyz/@dudeney_puzzl…

1 favourite 1 retweet

In reply to @WoollyBenguin

@WoollyBenguin such as?

0 favourites 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin 1d would entail at least £1, 1s, 1d. I think Dudeney would consider 1d on its own to be "£0, 0s, 1d".

0 favourites 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin I agree about £0, 0s, 0d. '0' as a number is a different thing from including leading zeros.

0 favourites 0 retweets

In reply to @TimHarford

@TimHarford Unfortunately, in that situation the clueless bigots were on the other side

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo the inverse symbolic calculator isc.carma.newcastle.edu.au

1 favourite 0 retweets

They say physicists like symmetry, but the opposite of an electron is a positron, and the opposite of a proton is an 'antiproton' 😒

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge usurptron

1 favourite 0 retweets

In reply to @Richvn

@Richvn @jjaron @TimHarford @FullFact oh but of course someone else did the same calculation quicker! I suppose I'll show my working:

2 favourites 0 retweets

In reply to @christianp

@Richvn @jjaron @TimHarford @FullFact I've done a simply terrible bit of modelling: p(join party) increases with age, what params describe the data we've seen:

0 favourites 0 retweets

In reply to @christianp

@Richvn @jjaron @TimHarford @FullFact guys, I'm having a mare. Here's the pic I meant to include

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Cor!

7 favourites 0 retweets

Here's a question: how many people live at house number 1, and work at building number 1?

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The Adventures of Alice (Silverberg) in Numberland: math.uci.edu/~asilverb/Adve…
I thought it wouldn't surprise me, but WOW!

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Today, google music instant mix seems to have picked "German feminist hard electro".
I have a surprising amount!

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In reply to @helenarney

@helenarney I'm going to start captioning all my videos with "(laughter and applause)"

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.@FOTSN have a DVD of their last show. Not the current one or the first one, one between those.
Maybe I could explain that better visually.. twitter.com/helenarney/sta…

1 favourite 0 retweets

In reply to @helenarney

@helenarney I bet the captioner was like, "for this gig, there's no such thing as over-eager"

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In reply to @Pecnut

@Pecnut I used to be able to say "big-endian architecture" and look smart. No idea now!

1 favourite 0 retweets

In reply to @niveknosdunk

@niveknosdunk I've had lots of 'lunn' this week

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Ooh, there's some maths in this game definitely! A bit like 2048 on a circle
dotowheel.com

2 favourites 1 retweet

There's a dog called Scamp at the vet's and yes he *is* a little scamp!

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In reply to @ruimvieira

@ruimvieira Congrats!

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans isthisprime.com/10000000000000…

1 favourite 0 retweets

"From boiling lead and black art: An essay on the history of mathematical typography"
practicallyefficient.com/2017/10/13/fro…

0 favourites 1 retweet

Cor!!

9 favourites 3 retweets

Good grief! twitter.com/extremefriday/…

1 favourite 0 retweets

In reply to @csgillespie

@csgillespie Tunnels are way cheaper than existing victorian infrastructure. Everyone knows that

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Starting to reconsider my plan to chop this tree down

3 favourites 0 retweets

10 minutes of grinding calculation, then the a-ha moment! mathstodon.xyz/@dudeney_puzzl…

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Today: document everything I'm responsible for at work before I go on paternity leave. Or, in my boss's words, "what's in your head, CP?"

4 favourites 0 retweets

Lunchtime!

1 favourite 0 retweets

In reply to @DrCaroSummers

@DrCaroSummers Award bonus marks for cooking it - demonstrates great understanding of the material

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@efrataitel not pictured: the huge box of peanut egg noodles and leftover crispy duck

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Oh no! oeis.org is down!

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It's back! twitter.com/christianp/sta…

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I'm not responsible for these numbers on the beach but I do approve of them

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Is it worth spending £2 just to have a tool about one day? I can't think where I'd need to cycle rather than walk in Newcastle twitter.com/NewcastleCC/st…

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This looks pretty wild twitter.com/CultureMath/st…

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Try typing the word 'accessibility' quickly. If baroque harpsichord music doesn't start in your head, I can't relate to you

1 favourite 0 retweets

In reply to @Gelada

@Gelada have just sent the new head of school an email to that effect 🤞

1 favourite 0 retweets

Why doesn't Ctrl+Enter save and close an appointment in Outlook???

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I've updated my "everyone's a mathematician" script to work as a bookmarklet.
Get it at gist.github.com/christianp/14a… or aperiodical.com/2014/03/everyo…

3 favourites 2 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @sxpmaths ooh, I think "obtuse reasons for number facts" could be a thing!

2 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly @duolingo I love this about duolingo: it forces you to abstract and spot the underlying grammar

2 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @sxpmaths I should, but not off the top of my head

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Somehow, the 15 minutes I gave myself before this meeting to install outlook on my phone and set up my work email was enough. Unsettling.

2 favourites 0 retweets

In reply to @MrHonner

@MrHonner prescriptivist!

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My 8-month pregnant, 31-year-old, wife just got ID'd buying wine. 🙃

(ps the wine is for someone else)

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson @MobikeUK uh-oh, that doesn't bode well for my gangly self. I was planning on trying it out tomorrow

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In reply to @jjsanderson

@jjsanderson @MobikeUK hrmm. Might give it a miss then

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!!! twitter.com/pickover/statu…

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ooooooh!
thisiscolossal.com/2017/10/kernel…

1 favourite 1 retweet

In reply to @ColinTheMathmo

@ColinTheMathmo @andrewwr235 I highly recommend "enlightening symbols" by Mazur. It delves into a lot of this type of question

1 favourite 1 retweet

A mysterious confluence of combinatorics and bad DIY instructions. It says and shows 12 of part D but I only have 6. Why? Solution to follow

1 favourite 0 retweets

In reply to @GhostMutt

@GhostMutt Yep

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In reply to @christianp

Solution: holes a, b, c and d are mutually exclusive options for where the middle shelf goes. So you only need 6 of part D

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In reply to @christianp

If there had been fewer options, there wouldn't coincidentally been as many potential holes as screws in the pack (there are two sides)

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Curtain pole bracket or abstract cobra?

3 favourites 1 retweet

In reply to @RichardElwes

@RichardElwes Echoes of Dr Strangelove

1 favourite 1 retweet

!!! twitter.com/nnoouuvv/statu…

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So long, Newcastle's awkward 60s architecture! twitter.com/NewcastleCC/st…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @chalkdustmag Until you said it, I hadn't realised just how much I hate that notation

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @chalkdustmag Like, I've always thought it was awkward, but you're right - it's got absolutely nothing going for it

0 favourites 1 retweet

In reply to @Pecnut

@Pecnut @icecolbeveridge @chalkdustmag At least it doesn't mean anything else

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In reply to @Pecnut

@Pecnut @icecolbeveridge @chalkdustmag I'm all for innovation in notation. Sticking to a set of conventions can end up making things awkward

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In reply to @hollykrieger

@hollykrieger Commiserations! I think I managed it this year, *and* I avoided all three of my wife's nursery class colds

1 favourite 0 retweets

In reply to @ajtpartridge

@ajtpartridge @mscroggs "22d plus a factor of 12"?

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In reply to @mscroggs

@mscroggs @ajtpartridge then I see your problem!

1 favourite 0 retweets

Can you find a book with an inadvertent string of Pilish longer than 5 words? I didn't in the top 15 Project Gutenberg books

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In reply to @christianp

The stumbling block is that nine-letter words are very rare.

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I use Pukka pads for scribbling because the paper's good and the perforation is just right. But it's ruled! Is there a blank equivalent?

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Odd: colleague mentioned Shanks transformation, I said "that's probs local hero William Shanks!". It isn't, but this one also set a π record

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In reply to @christianp

Daniel Shanks was the first to compute π to 100k decimal places: en.wikipedia.org/wiki/Daniel_Sh…, knocking William Shanks' 527 into a cocked hat

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In reply to @sxpmaths

@sxpmaths @ZatuGames noted...

1 favourite 0 retweets

In reply to @aperfect

@aperfect they're so expensive!

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In reply to @christianp

@aperfect and the pages aren't all perforated in Leuchtturm books, are they?

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In reply to @aperfect

@aperfect aha, pukka make one, but it isn't wirebound amazon.co.uk/Plain-Paper-80…

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In reply to @HilariousCow

@HilariousCow you've finally made the perfect game

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In reply to @jonpenguin

@jonpenguin but of course Mike Keith has already had the idea!

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In reply to @christianp

@jonpenguin looks like I do need to scan the entire Project Gutenberg corpus if I want to get long strings

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In reply to @robinhouston

@robinhouston no need to be hyperbolic

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In reply to @dennisprangle

@dennisprangle It does for me, on the desktop.

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In reply to @christianp

@dennisprangle PS congrats on ⌊ 100π ⌋ tweets

1 favourite 0 retweets

My energy company gives me, a wealthy person, the benefit of the doubt all the time: I can be 'in debit' for months. Benefits should be same twitter.com/JonnieMarbLes/…

2 favourites 1 retweet

In reply to @christianp

... and if they recalculate and I'm suddenly behind by a lot, they work out a repayment plan rather than demanding it all at once

1 favourite 0 retweets

In reply to @AftSchSciClub

@AftSchSciClub you mean apart from "Jenny From the Block"?

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If you don't think this nugget must have been made from at least two chickens, you might be Alfred Tarski twitter.com/qikipedia/stat…

3 favourites 1 retweet

Falling down the javascript build tools rabbit hole again.
I wish people would document how to actually use their code!

5 favourites 2 retweets

Wow! I've found an Android app that not only corrects protanomaly but names colours too!
#colourblindhooray
play.google.com/store/apps/det…

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A nice article about Conway's weirdo computer FRACTRAN in esoteric.codes: esoteric.codes/post/166814604…

4 favourites 2 retweets

Nice to get a personalised receipt from @tynesidecinema

2 favourites 0 retweets

In reply to @MathsJam

@MathsJam @WorcsMathsJam I've added it

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November

In reply to @pkrautz

@pkrautz The Numbas editor had an enormous floating feedback button for years. Was used like twice. People just block it out

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt Time to write "... and then some magic happens"

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😍 twitter.com/soma_arc/statu…

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In reply to @elinoroberts

@elinoroberts Once they're out of sight

2 favourites 0 retweets

Unlike the Highlander, it turns out there can be more than one disgraced former defence secretary twitter.com/bbclaurak/stat…

1 favourite 1 retweet

In reply to @robinhouston

@robinhouston The way the OEIS deals with this kind of comment is very frustrating. It should be possible to add lots more justification

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Our new L-P is out!
Philippa Rowena Lawson-Perfect was born 31/10, weighing 3.85kg. She's practically (lawson-) perfect in every way.

61 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK I KNOW!!! I wish you could be around to snuggle her.

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In reply to @ColinTheMathmo

@ColinTheMathmo SORCEROR

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What a nice idea for a bot! twitter.com/congratsbot/st…

2 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @peterrowlett @evelynjlamb The @maanow have had a long-running column and Flickr gallery of found math: flickr.com/photos/4433583…

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Who needs to blast foot fighters at 8:40 in the morning?!
My neighbours, apparently

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In reply to @christianp

And now they've set off their smoke alarms. Is this revenge for the baby crying last night?

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In reply to @Plattsc

@Plattsc Thanks! She's pretty faultless, in my opinion

1 favourite 0 retweets

In reply to @helenarney

@helenarney @nosuchthing ... nappy cover? I have so much to learn

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RTed 100% for the gif twitter.com/Mathematical_A…

1 favourite 0 retweets

My amazon parcel has been on the van since 1am this morning. I hope it hasn't been the same guy driving it all day!

3 favourites 0 retweets

Look out for "Perturbation theory and its applications to baby-gro poppers" (Lawson-Perfect, 2017)

1 favourite 0 retweets

No one should be homeless.

I feel very strongly about this. twitter.com/jeremycorbyn/s…

2 favourites 1 retweet

Pals, I want to quit twitter because of its Awful People problem, but I don't think all 525 people I follow will leave with me. What to do?

6 favourites 1 retweet

In reply to @christianp

Mastodon is great, we could give that a go - joinmastodon.org
(I run a maths-centric instance at mathstodon.xyz)

4 favourites 1 retweet

In reply to @christianp

It's yet to be seen how Mastodon copes with large numbers of varyingly awful people. Requires lots of moderation!

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In reply to @Steve_Perfect

@Steve_Perfect Aw, thanks, potential-relative!

1 favourite 0 retweets

In reply to @BathMASH

@BathMASH Congratulations Cheryl! Three days before my own epsilon.

1 favourite 0 retweets

In reply to @mattpep

@mattpep I think Mastodon might have enough momentum behind it to take off

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow I'm thinking more of twitter's broader non-action on harassment of women and minority groups, and this pinknews.co.uk/2017/11/05/twi…

2 favourites 1 retweet

In reply to @christianp

@RobJLow My timeline is a very pleasant stream of people I like

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In reply to @RobJLow

@RobJLow Exactly

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In reply to @BathMASH

@BathMASH Philippa Rowena Lawson-Perfect. A nice, short name... Since she was born on Halloween, she's our pumpkin pip 🎃

1 favourite 0 retweets

In reply to @BathMASH

@BathMASH Induced early because she was getting a bit big

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In reply to @henryseg

@henryseg #treeception

0 favourites 0 retweets

In reply to @RealityMinus3

@RealityMinus3 @CounterOfSheep I tried it for a laugh first time I used the screen. About half the interface is untranslated 😒

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Ironic: I can’t attend our equality & diversity committee cos 1) I’m on paternity leave 2) I don’t work on Fridays because of my disability!

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A spot of satire via a logic puzzle, by Tanya Khovanova blog.tanyakhovanova.com/2017/10/who-li… (who else?)

2 favourites 2 retweets

I've just got round to watching this year's Dance Your PhD winner. The production values have certainly gone up! aperiodical.com/2017/11/braid-…

1 favourite 0 retweets

@efrataitel I think you could do with being a bit more choosy!

0 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl I'd definitely stick it up on my office wall

1 favourite 0 retweets

Louche. #DescribeYourDogInOneWord

0 favourites 0 retweets

In reply to @ClaireLYoung

@ClaireLYoung @schoolspeakers Very occasionally.

1 favourite 0 retweets

This is really good! twitter.com/elinoroberts/s…

1 favourite 1 retweet

In reply to @Craigos87

@Craigos87 @TwitterSupport @Derektionary !!!

2 favourites 0 retweets

Very sad to be missing the #mathsjam gathering this year. I've been trying to explain euler's formula to the babby, but it's just not the same.

13 favourites 0 retweets

In reply to @Pecnut

@Pecnut @chalkdustmag @ColinTheMathmo @stecks @televisionduck @mscroggs @SmokyFurby @standupmaths @Dragon_Dodo @aaclarke4 Why and how am I tagged in this photo?

3 favourites 2 retweets

A day late and in the wrong year, I've come up with a notation idea for #mathsjam: there should be a different zero symbol to show (lack of) precision.
e.g. 3xxx instead of 3000 when figure is correct to the nearest 1000.

16 favourites 4 retweets

In reply to @christianp

Maybe "Greek letter archaic koppa" will do: Ϙ

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge already in use by spoddy computer types to differentiate zero from the letter O

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* Receive email from academic in Gävle
* Write courteous, professional reply to the questions posed.
* Succumb to excitement and sign off wishing the @Gavlebocken the best of luck this year

0 favourites 0 retweets

In reply to @christianp

or, since you're rounding after a particular digit, a separator would do, like 3~000

1 favourite 0 retweets

In reply to @HilariousCow

@HilariousCow Why it works:

If A and B are both >= 0, then

(1) A > B
is true if and only if
(2) A^2 > B^2

so if you check (2), then you also know (1), and vice versa

0 favourites 0 retweets

In reply to @Gelada

@Gelada you might enjoy this: codepen.io/christianp/ful…
(put x*y in the "function" box)

1 favourite 1 retweet

In reply to @mathpunk

@mathpunk what's yours?

0 favourites 0 retweets

In reply to @mathpunk

@mathpunk make an account on mathstodon.xyz. It's quiet enough to leave unattended

1 favourite 0 retweets

In reply to @Dragon_Dodo

@Dragon_Dodo @peterrowlett That's an excellent analogy!

0 favourites 0 retweets

Hey @standupmaths I'm organising a Christmas 5-a-side tournament. Which logo should I go with?

32 favourites 5 retweets

In reply to @standupmaths

@standupmaths 👺

0 favourites 0 retweets

In reply to @ShipsLadyG

@ShipsLadyG @standupmaths 😈

0 favourites 0 retweets

In reply to @Aoife_Hunt

@Aoife_Hunt I'm at home dealing with fatherhood! Sorry to miss you

0 favourites 0 retweets

In reply to @Aoife_Hunt

@Aoife_Hunt You're here again for maths inspiration, aren't you?

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Best present the baby's had so far!

10 favourites 2 retweets

In reply to @christianp

Though I think everyone can find something to disagree with on this page

7 favourites 1 retweet

In reply to @BTNMathsJam

@BTNMathsJam @ColinTheMathmo I had that in mind

0 favourites 0 retweets

This Christmas card from @UKLabour is gloriously childish

5 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith Gosh those buttons are small for young fingers

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo 😮

0 favourites 0 retweets

It's 12:30pm and I've eaten:
⋅ all my lunch
⋅ all my fruit
⋅ all my naughty chocolate

I'd hoped to avoid a sneaky snack sortie...

2 favourites 0 retweets

Heads of states with names very similar to their countries'?

Uhuru Kenyatta
Kemal Atatürk

I'll also accept names like Charles de Gaulle

2 favourites 1 retweet

Just noticed the uni has a shared drive containing progs and data for all departments.
It contains just under 400 files last modified before 1990, including ten last modified in 1980!!

3 favourites 0 retweets

In reply to @tombutton

@tombutton @icecolbeveridge I'm happy with Ataturk changing his name, but not the other way round - see the many places named after Alexander.
Arsene Wenger and Arsenal is very strong.

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut @ColinTheMathmo @SLCComms you get an annual statement of your balance between each February and April?

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut @ColinTheMathmo @SLCComms as an editor of the @aperiodical, I can only approve

2 favourites 0 retweets

@efrataitel yeah, not going to take that one.

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@efrataitel did you look at a list of heads of state to find that?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge nah, country's named after the House of Saud

0 favourites 0 retweets

@efrataitel same difference

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge conquering a country and naming it after yourself is, and I might be alone in holding this opinion, not as impressive as ascending to power through sheer nominative determinism

0 favourites 0 retweets

@efrataitel It's allowed!

0 favourites 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam Nah, I'm not interested in people who give their names to the places they rule

0 favourites 0 retweets

Geometers HATE this one weird trick for drawing a hexagon!

121 favourites 39 retweets

In reply to @FOTSN

@FOTSN Is that Sesame Street video the 123rd in the series?

0 favourites 0 retweets

In reply to @akivaw

@akivaw @standupmaths niiiice :)

0 favourites 0 retweets

In reply to @PaulaKrieg

@PaulaKrieg I was making a reference to those sketchy adverts: reddit.com/r/OutOfTheLoop…

2 favourites 0 retweets

Wanted: ASCII art which shows one image when displayed obeying newlines, and a different one with newlines stripped and wrapped to N (let's say 80) chars

7 favourites 1 retweet

we have a minimum viable product twitter.com/samholloway/st…

1 favourite 0 retweets

In reply to @christianp

First attempt

2 favourites 0 retweets

In reply to @ZenoRogue

@ZenoRogue There is a seventh marker in the centre but I pulled it back so it didn't make a mark

4 favourites 0 retweets

Magic twitter.com/FabriceNEYRET/…

0 favourites 0 retweets

Does anyone know how exactly this worked? twitter.com/susie_dent/sta…

1 favourite 0 retweets

In reply to @SamHartburn

@SamHartburn thanks!
So it's just a counting table. Wikipedia's description made it hard to imagine how the cloth would end up looking like a chess board.

0 favourites 0 retweets

Cue a proliferation of ed-tech products costing a decent fraction of £600 per student twitter.com/Mathematical_A…

1 favourite 1 retweet

In reply to @alisonkiddle

@ajk_44 2501 is 41*61, that's pretty nice. Very close to sqrt(2501)≈50

1 favourite 0 retweets

Thank goodness! twitter.com/nick_forbes/st…

0 favourites 0 retweets

In reply to @MathedUp

@MathedUp @AdamCreen @MathsMrCox Snap!
twitter.com/christianp/sta…
There's lots to disagree with on that page.

1 favourite 0 retweets

In reply to @jjaron

@jjaron testify!

0 favourites 0 retweets

This is going to be horrendous, isn't it?

1 favourite 0 retweets

Have spent a happy couple of hours learning Rust. I've written a stupid to-do list program.

4 favourites 0 retweets

Another escapade in the long tradition of (in)numerate politicians twitter.com/DuncanWeldon/s…

1 favourite 0 retweets

Letter from the GP has misspelt the new L-P's name. This doesn't bode well.

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK I see that you have just as close a bond with your cousin as I do with mine

0 favourites 0 retweets

In reply to @outofthenorm2

@outofthenorm2 @wacnt Seriously impressive!

4 favourites 0 retweets

Sudden, uncontrollable hunger for a stottie

0 favourites 0 retweets

In reply to @aperfect

@aperfect I've been using it for a few weeks. What kind of bugs?

0 favourites 0 retweets

In reply to @Thalesdisciple

@Thalesdisciple Congratulations!

0 favourites 0 retweets

Look, @sangwinc! twitter.com/Foone/status/9…

1 favourite 0 retweets

In reply to @screencasto

@screencasto is there a way of exporting captions to a file? The recorder app won't let me include captions when uploading to youtube or vimeo.

0 favourites 0 retweets

Does anyone else share my love for the Journal of Number Theory's video abstracts? mathstodon.xyz/@christianp/99…

0 favourites 0 retweets

In reply to @DrVeronikaCH

@vcheplygina is there a way of viewing appendices on that page that I've missed? I can't find it in the PDF

0 favourites 0 retweets

The perfect shirt for @icecolbeveridge tshirtsbot.com/product/yes-i-…

2 favourites 0 retweets

I expected a Proustian moment and I got SOCIAL MEDIA NONSENSE!

2 favourites 0 retweets

In reply to @DrVeronikaCH

@vcheplygina thanks! I wonder why the supplementary material went missing from the final publication.

0 favourites 0 retweets

In reply to @jjaron

@jjaron I've noticed some jitter in the latest Firefox, but not jumping all the way to the top. How long has it been going on?

0 favourites 0 retweets

I've spent arguably too long making this madlibs ourobouros: checkmyworking.com/misc/almost-po…
Don't tell anyone.

0 favourites 0 retweets

@efrataitel We need a 'this isn't a word' link, which I decided I shouldn't waste any more work time putting in.

0 favourites 0 retweets

In reply to @COOLIO_FEAT_LV

@COOLIO_FEAT_LV I think there's a sorting hat involved

1 favourite 0 retweets

Cor, the Interesting Esoterica bot on mathstodon, mathstodon.xyz/@esoterica, has over a hundred followers! Might have to reconsider the 'esoteric' part of the name.

1 favourite 2 retweets

In reply to @helenarney

@helenarney It's not just you - I always go a bit fluttery when I see off-duty paramedics

0 favourites 0 retweets

It's snowing on Northumberland street and the bagpipers are beating a hasty retreat. Surely this is the weather kilts were made for?

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs Never mind, we can all still argue about the cause

0 favourites 0 retweets

In reply to @bit_player

@bit_player I wonder if you could come up with a probabilistic estimate of this stat based on a partial record of searches

0 favourites 0 retweets

In reply to @jamestanton

@jamestanton 22 isn't the best for fourth powers: 7 works too. This is oeis.org/A046017

2 favourites 1 retweet

aaaa I've spent too long writing code in strongly-typed languages and now JavaScript is freaking me out!
I don't know what anything means!

0 favourites 0 retweets

In reply to @bit_player

@bit_player It's feasible to store every unique query ever: 15% of 500m is 75m new per day. Over 15 years that's ~400 billion. Since most searches have lots in common, could be stored in a clever data structure in <1TB, I reckon

0 favourites 0 retweets

December

Testify!! twitter.com/DavidKButlerUo…

1 favourite 0 retweets

In reply to @tombutton

@tombutton It's those gosh darned times tables. Bought on amazon prime? 😉

3 favourites 0 retweets

Oh my goddd, someone's remade insane 90s strategy oddball Netstorm! store.steampowered.com/app/718650/Dri…

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK Yes.

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In reply to @aperfect

@aperfect did you not drive up Porlock Hill? Did you see the weird "aquarium" in the village?

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I took this photo of my Towers of Hanoi set for a mathstodon post, but each time I look at it something else catches my eye mathstodon.xyz/@christianp/99…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @reflectivemaths Advice to live by

2 favourites 1 retweet

In reply to @sangwinc

@sangwinc I'm sure I've seen something like this before, but I can't find it.
Have you seen en.tcheb.ru?

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs where?

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs I've done two

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In reply to @mscroggs

@mscroggs aha!

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith @Athena_SWAN Keep tweeting! I'm about to go into my department's first Athena SWAN planning meeting for this round

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Hah! Whamageddon: try to last as long as possible without hearing "Last Christmas"
whamageddon.com

0 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass I did the same thing a few years ago: checkmyworking.com/2012/06/a-hugg…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Similarly, I've come to believe that any political slogan beginning with "Let's" can be replaced with "We almost definitely won't"

1 favourite 1 retweet

Chocolate crinkle cookie cake time! #nomnomnom

1 favourite 0 retweets

In reply to @LukeSelfwalker

@LukeSelfwalker I'd say "Ah! Ah! Ah!" after each number

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In reply to @CounterOfSheep

@CounterOfSheep Some number of years ago I switched from complete silence in pain to making a loud noise. Except the volume isn't very well correlated with the amount of pain. I hadn't realised this was a common autism difficulty!

1 favourite 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep Brings back strong memories of my autism assessments

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Has anyone used "Problem Solving Through Recreational Mathematics" with undergrad students?
store.doverpublications.com/0486409171.html

2 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths Yeah, I just found it today as a side effect of a search for something else. It's on my amazon wish list 😁

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Ta!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @ColinTheMathmo@mathstodon.xyz

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @ColinTheMathmo @aperiodical @stecks Nope

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🤔

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Ready for @NCLMathsStats Christmas jumper day!
We're raising money for @PKnewcastle

5 favourites 1 retweet

Forced to interact with the "modern" javascript build tools again, and once again I'm amazed by how much memory it all needs

1 favourite 0 retweets

A new horror: a parser for a regular language written by someone who apparently didn't know about regular expressions

1 favourite 0 retweets

Cross-referencing the index for my daughter's new self-help book, "Wake Yourself Up By Farting!"

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In a training workshop about Microsoft Forms. It supports maths, and I was expecting MS' poopy renderer, but it's @MathJax!

1 favourite 0 retweets

Me too! twitter.com/LukeB_UK/statu…

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Remember when mice didn't have wheels? Good grief.

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Do you, or anyone you know of, use a text-to-speech communication aid to present maths? I'm interested in how you'd emulate or work around the variations in rhythm and tone that make spoken maths easier to parse

0 favourites 6 retweets

In reply to @plusmathsorg

@plusmathsorg I wish I had time to extend oeis.org/A045494 to the 280th term, so I can know when to expect that account to break

0 favourites 0 retweets

In reply to @chalkdustmag

@chalkdustmag thanks for the Christmas card, and thanks for the implied doctorate!

1 favourite 0 retweets

Ooh, this is extraordinarily clever: a game where the rules are pieces of the world that you can move about
rockpapershotgun.com/2017/12/12/bab…

16 favourites 6 retweets

In reply to @jjsanderson

@jjsanderson @CraigFair it means you can do for example random(0,len(string)) and be sure you'll get an index of a character in the string. It's less hassle in most cases than making the max inclusive

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 if you get them all to point at each other, they'd be a category

1 favourite 1 retweet

In reply to @monsoon0

@monsoon0 x ↦ person who understands category theory better than x

1 favourite 0 retweets

In reply to @newscientist

@newscientist Interesting choice of word to put in quotes there

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@opcampbell @RobJLow how often are patents granted in more than one name? I guess that's the root of it

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In reply to @CounterOfSheep

@CounterOfSheep 🤗

1 favourite 0 retweets

Google helpfully offers the full lyrics of the twelve days of Christmas.
It's... not the normal version. It reads like something generated by a neural net trained on Christmas songs

381 favourites 179 retweets

@robthemasterg Yes, I gathered it was from a medley version. Doesn't speak well of Google's ability to organise the world's knowledge

4 favourites 0 retweets

Can someone else check which version of the twelve days of Christmas Google gives you? twitter.com/robthemasterg/…

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😣 twitter.com/obgrmb/status/…

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge That pun is so basic my French teacher told us it in year 8. And yet, it's irresistible

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With some interactive doodads by me! twitter.com/JimPropp/statu…

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @chalkdustmag @stecks Spoiler alerts are most effective *before* the spoiler

1 favourite 0 retweets

Ooh, that is a lovely way of illustrating notation! Like TeX metrics come to life! twitter.com/pidaymars/stat…

2 favourites 0 retweets

*for people with full colour vision* twitter.com/JanWillemTulp/…

25 favourites 5 retweets

In reply to @jjaron

@jjaron I like - "He's on the decorum spectrum"

1 favourite 0 retweets

In reply to @MrDee_Maths

@MrDee_Maths I looked into this a few years ago, when they were using the nonsense dimensions "volumetric area" - aperiodical.com/2014/11/appare…
Excitingly, you could pack an unacceptable parcel diagonally inside a larger volume box and make it acceptable!

11 favourites 3 retweets

In reply to @helenarney

@helenarney @SarahBearchell They're still making Aquila!! I *loved* it when I was a kid

3 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep I'm currently spread-eagled on the sitting room floor, surrounded by in-laws. I hope you find similar peace

1 favourite 0 retweets

In reply to @graveolens

@graveolens @inversed_ru I was just thinking about these numbers in a different context this morning. What a coincidence!

4 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts 😲

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In reply to @BTNMathsJam

@BTNMathsJam I congratulate you on your dedication to absurd shopping arithmetic

1 favourite 0 retweets

Is this a fact anyone already knows? twitter.com/mathforge/stat…

0 favourites 0 retweets

In reply to @mathforge

@mathforge 2^30 is quite small and there are lots of symmetries, so you could brute force it

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In reply to @Plattsc

@Plattsc Do I want to know what a flower wall is?

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem Yes, it looks like long multiplication. I bet @jamestanton would enjoy this - exploding dots leads up to "base x"

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith That's a strong look

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In reply to @Plattsc

@Plattsc 😮

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2018

January

In reply to @JanvierUK

@JanvierUK Now you've said it, I realise I'm the same!

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Is this normal? Is Zuul about to appear?

2 favourites 0 retweets

First day back at work, and I'm instantly reminded my office chair broke last year 😧

1 favourite 0 retweets

In reply to @Alby

@Alby @peterrowlett @stecks points deducted for typesetting the formula clearly. A list of variable names with no context would be more authentic

2 favourites 0 retweets

I can comfortably say that child CP would *not* have been able to put up with the dark side boss battles #SuperMarioOdyssey #NintendoSwitch

3 favourites 1 retweet

In reply to @JanvierUK

@JanvierUK happy birthday! 🎂

0 favourites 0 retweets

In reply to @worrydream

@worrydream maybe that came from asking "what still uses COBOL?"

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Pro move from this survey: data protection statement *after* you've submitted your response

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Time for more griping about online journal interfaces. This time, Wiley.
Does it look to you like actually reading the article is among the least prominent things on this page? Greyed-out, looks almost deprecated to me, compared to "related content"

0 favourites 0 retweets

In reply to @christianp

at least this time, there's a nice, *labelled* PDF link floating aside from the rest of the interconnectedness-of-all-things cruft

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Imagine being as useless as Theresa May

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Uhh, @My_Metro? I think @drummondcentral
might need the toilet.

0 favourites 0 retweets

In reply to @tombutton

@tombutton @icecolbeveridge ooh, not sure how I feel about that. It's in the uncanny valley of presidential autonyms

0 favourites 0 retweets

In reply to @margaretwerth

@margaretwerth @evelynjlamb reminded me of "Officially, home plate doesn't exist": gosper.org/homeplate.html

1 favourite 0 retweets

Sometimes MS Office is extra helpful

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In reply to @helenarney

@helenarney We're going to do the same in a bit. Already given our remaining first-size nappies, and this baby won't stop smashing her growth targets!

1 favourite 0 retweets

AMBIGUOUS PHRASING OF ODDS KLAXON twitter.com/qikipedia/stat…

0 favourites 0 retweets

In reply to @d_spiegel

@d_spiegel is it alright if I send you an email with a question about communication of odds in the news, for a piece on @aperiodical?

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Does anyone know if there's a dataset of UK national lottery jackpot amounts going back to when it started somewhere on the web? Surely someone was noting them down each week?

0 favourites 0 retweets

In reply to @timstirrup

@timstirrup ta!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett ooh, lovely

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Current status: just been told edf energy's communications department is an internal department and doesn't communicate with customers

1 favourite 1 retweet

In reply to @benorlin

@benorlin Happy birthday! One year minus two days after me 🎂

1 favourite 0 retweets

In reply to @benorlin

@benorlin Then pass on my heartiest congratulations

1 favourite 0 retweets

In reply to @Bluebirdlouise

@Bluebirdlouise @ShonaDav That is such a good way of thinking about it!

3 favourites 0 retweets

The dog is deeply unimpressed with the baby's farts. I told her that's very much like the pot calling the kettle black, but my dog has trouble with idioms

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Turing-complete mechanical linkages!!!
arxiv.org/abs/1801.03534
This will appeal to @standupmaths and @sangwinc

0 favourites 1 retweet

In reply to @JanvierUK

@JanvierUK Thanks!

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN @stecks When did she do that?! I don't have any direct evidence that she sleeps, and plenty of circumstantial evidence to suggest she doesn't.

1 favourite 0 retweets

I'm visiting Dublin tomorrow and Wednesday. Will almost def fail again to make it to Broom Bridge, but what other maths things can I see near UCD?

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NEWS: Conservative in favour of keeping things as he currently perceives they are twitter.com/estwebber/stat…

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Challenge: date this fridge by inferring that its name apparently didn't provoke a trademark infringement case

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @rak_1507 here's one: ssf!ssf!ssf, where s is square root, f is floor, and ! is factorial, evaluated from left to right

1 favourite 0 retweets

In reply to @christianp

@DavidKButlerUoA @rak_1507 here's the python script I wrote to play about with this: gist.github.com/christianp/2bd…

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @MrChaconMath @DavidKButlerUoA @rak_1507 I've crunched the numbers and can do 4 in 28 steps: ssf!sf!ssssf!sssssf!sssssssf
By the way, I'm also delivering a workshop so you're all slowpokes

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In reply to @christianp

@icecolbeveridge @MrChaconMath @DavidKButlerUoA @rak_1507 It looks like no new values < (100000!) after 64 steps, unless some gimongous factorial would eventually collapse

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @icecolbeveridge @MrChaconMath @rak_1507 here's my python notebook:
gist.github.com/christianp/f8b…
basically, keep track of shortest sequences to produce unique values, and try adding operations to the end

1 favourite 1 retweet

In reply to @DavidKButlerUoA

@DavidKButlerUoA @icecolbeveridge @MrChaconMath @rak_1507 Yep. And only show values less than 10^5

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @icecolbeveridge @MrChaconMath @rak_1507 I have a sequence of operations to apply, e.g. "sf!" is "square root then floor then factorial".
If a long sequence produces a result I've already made with a shorter sequence, obviously no point in looking at it any more.

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Fairly easily done, since you've got the list of steps for each number. Missing cycles of course

1 favourite 0 retweets

In reply to @rak_1507old

@rak_1507 @DavidKButlerUoA @MrChaconMath @icecolbeveridge Ah, you're allowing non-integer factorials, aka the gamma function. Lots shorter solutions if you do that

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In reply to @MrChaconMath

@MrChaconMath @icecolbeveridge @DavidKButlerUoA @rak_1507 About to get on a plane in literally 10 minutes. Will check tomorrow

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In reply to @rak_1507old

@rak_1507 @MrChaconMath @icecolbeveridge @DavidKButlerUoA Home!

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Fancy some lunchtime turbonerdery?
Play MatchTheNet, where you have to match 3d polytopes to their nets: matchthenet.de

13 favourites 7 retweets

In reply to @BTNMathsJam

@BTNMathsJam we discovered last night that the Italian cafe round the corner from my mum's stocks chinotto san pellegrino! The lady who ordered it was *not* impressed

2 favourites 2 retweets

In reply to @BTNMathsJam

@BTNMathsJam She said she thought it looked like diet coke 🤨

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In reply to @fermatslibrary

@fermatslibrary here's a sequence of 10, computed with @cocalc_com

13 favourites 0 retweets

Over on mathstodon.xyz, I see @dudeney_puzzles@mathstodon.xyz has reached another classic: mathstodon.xyz/@dudeney_puzzl…

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Hah! Nice: someone categorising games based on their (sometimes incorrectly assessed) computational complexity.
I've collected some papers on that topic: read.somethingorotherwhatever.com/collection/com… twitter.com/ZenoRogue/stat…

2 favourites 0 retweets

In reply to @jamestanton

@jamestanton Let one short side be a.
hypotenuse = ½(1 ± √5)a
Second short side is the geometric mean of the other two.
Can't have the hypotenuse be the geometric mean of the two short sides.

1 favourite 0 retweets

In reply to @JP_Mc_C

@JP_Mc_C @jamestanton yes, I should've checked...

1 favourite 0 retweets

😠🤯 twitter.com/CounterOfSheep…

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what

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Compound interest at 2% is about twice as quick to double your investment as compound interest at 1%.
5% is about 5 times as quick.

But not exactly! 10% is only about 9.5 times as quick.

Does this count as a rule of thumb?

1 favourite 0 retweets

I imagined some accountants must have already spotted it.
When was the last time computing logs was difficult, though? twitter.com/ptwiddle/statu…

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Today's conventions and concepts question: does a 0×0 matrix exist? How about 0×m? If yes to both, are they different objects?

(Interpret 'does' and 'exist' as you wish)

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Academia in 2018: trying to remember if a site is one of those skeezy content aggregators or a real journal publisher's necessarily-generic name for their online offering.
See: sciencedirect.com, researchgate.net, academia.edu

2 favourites 0 retweets

In reply to @darrenjw

@darrenjw interestingly, this (ftp.cs.wisc.edu/Approx/empty.p…) claims Bourbaki only defined a single 'empty matrix'. I can see people fudging the distinction pre-computers

0 favourites 0 retweets

In reply to @christianp

@darrenjw I can make a devil's advocate case for them all being the same thing if you only look at multiplication: the product of any matrix with the empty matrix is the empty matrix

0 favourites 0 retweets

In reply to @darrenjw

@darrenjw Only so that the result is well-defined. But here it is: it's always the empty matrix

0 favourites 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn @ChrisMaslanka I'll see you next Tuesday 😉

1 favourite 0 retweets

Emails from two colleagues in my inbox this morning. One called me Chris, the other Christine.
youtube.com/watch?v=v1c2Of…

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In reply to @Steve_Perfect

@Steve_Perfect really? Do people misspell it?

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Yeah, why not cross a magic square with the fifteen puzzle?
WHY NOT?!
mathstodon.xyz/@dudeney_puzzl…

1 favourite 1 retweet

Welp, there went my morning. Here's an interactive version of the puzzle: christianp.github.io/Dudeney403/
I got to play with CSS grids, so can I count it as professional development? twitter.com/christianp/sta…

3 favourites 3 retweets

In reply to @christianp

on reflection, setting up a bot with the express intention of nerdsniping myself was a bad idea

1 favourite 0 retweets

In reply to @chalkdustmag

@chalkdustmag can I be really pedantic and say that "a phenomena" makes my hackles raise?

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @chalkdustmag yes, that one

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @chalkdustmag as I was writing it, I was thinking "isn't it normally 'raise my hackles'"?

0 favourites 0 retweets

In reply to @benorlin

@benorlin oh man, that reminds me that @TweetsofCushing used to try to get to my blog with weird phrases constructed from unusual words I'd used in my posts, in the hope I'd see them in the logs. Things like "Nathan in the zero-knowledge hall of fame"

2 favourites 0 retweets

In reply to @ChrisHazell72

@ChrisHazell72 @ajk_44 @icecolbeveridge @chalkdustmag well, this went about as well as I expected

0 favourites 0 retweets

@efrataitel Hey, on Fridays I literally just sit in a chair and eat whatever's nearby. Not every day can be a winner!

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@efrataitel Me!

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Five years ago today was the most rock-n-roll my mathematical career has got so far: I was pretty pleased I'd made an origami icosahedron.

8 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo yes

1 favourite 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor @ColinTheMathmo challenge: assuming the answer to Colin's question is "yes", find the siblings-in-law equivalence class that spans the most generations

2 favourites 1 retweet

My barber's has a new barber and a fish tank has replaced the old coffee table of out-of-date magazines. I've read too many Robert Rankin books to see this as anything other than an omen of Ragnarok

3 favourites 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam @ColinTheMathmo @aPaulTaylor I hope so! My first thought was that the family tree(s) of Europe's royal families would be a good starting point

0 favourites 0 retweets

In reply to @Aoife_Hunt

@Aoife_Hunt @robeastaway @ColinTheMathmo what are your plans around the @MathsInspiratn shows tomorrow? I'd like to pop into the first show and see you afterwards if poss but I've got a meeting 2-4pm

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @CounterOfSheep I think it's more of a friends-with-penefits situation

2 favourites 0 retweets

In reply to @elcaborotativo

@elcaborotativo That's @TweetsofCushing and pals!

1 favourite 1 retweet

February

How can you write a whole article about 'shrinkflation' and not look at price per gram?
Just saying that some products are smaller and some have gone up/down in price and joining the two misses the point entirely.
bbc.co.uk/news/uk-428646…

13 favourites 6 retweets

In reply to @christianp

THE WHOLE POINT OF THE ARTICLE WAS THAT THE 200g TOBLERONE DOESN'T EXIST ANY MORE

3 favourites 1 retweet

In reply to @christianp

THEY'RE BASICALLY ALL WORSE DEALS!
This took me 15 minutes, including the formatting!

10 favourites 3 retweets

In reply to @christianp

"While price cuts for products are not always in proportion to size reductions - it is not the case that customers are being short-changed all the time."

15 out of 19 sweets are worse value now. So by and large, customers *are* being 'short-changed'.

6 favourites 1 retweet

Victory, of a sort: @stecks has pointed out that the article now has a chart showing price per gram, and they've got rid of the "not being short-changed" bit twitter.com/christianp/sta…

4 favourites 0 retweets

I'm an hour and a half into trying to submit a one-line code fix to @moodledev. A lot of yak-shaving to get MDK to run and give me an instance based on the latest stable version.

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Are you kidding.

4 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @mathequalslove ooh, I got addicted to Undead for a long time. It's just the right amount of thinking.

2 favourites 0 retweets

In reply to @christianp

Still kidding?
This has been on the screen for like 3 minutes

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Congratulations! I've checked, and my first post on checkmyworking.com was in 2010: checkmyworking.com/2010/02/whats-….
I feel like that can't have been my first blog post ever though.

0 favourites 0 retweets

Currently reading: sigaccess.org/welcome-to-sig…

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I'd be amazed if anyone can beat that. twitter.com/DrSMJames/stat…

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I think my new office chair wanted to be the USS Enterprise instead

6 favourites 0 retweets

I've just discovered that Pearson have renamed "MyMathLab" to "MyLab Math".

I eagerly await "MathMyLab".

3 favourites 0 retweets

Never stop partying! 🥞🥞🥞🥞
It's fat American ones this morning, so that counts as a different meal, right?

5 favourites 0 retweets

Have YOU ever told a story so exciting your daughter spontaneously barfed?

6 favourites 0 retweets

On my way to #devacuk to talk about @NclNumbas and @MathJax, and learn about other spoddy coding things.

1 favourite 0 retweets

Just passed someone waving a chequered flag at my train. We... won?

5 favourites 0 retweets

In reply to @erickratamero

@erickratamero should say: this is a fork of stackedit.io adapted for a particular student. The original site is best for everyone else.

1 favourite 0 retweets

Ooooooh! twitter.com/jtmaths/status…

7 favourites 2 retweets

In reply to @BTNMathsJam

@BTNMathsJam @peterrowlett @SOSMathsJam a*f(a-1) if a>0 else 1

0 favourites 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam @peterrowlett @SOSMathsJam I think there's a language with a single command, 'compute n!'

0 favourites 0 retweets

Just saw an actual butcher's van with "Pleased to meet you, meat to please you" on the side!!!
My favourite chiasmus!

0 favourites 0 retweets

Frozen canal!
(coming from the North East, canals are a novelty, OK?)

2 favourites 0 retweets

I've just set up a separate presentation account on my laptop for my #devacuk talk.
Windows 10 has filled the start menu up with an astounding quantity of nonsense.

2 favourites 0 retweets

In reply to @statto

@statto Every time I need to check I've got write permission in a directory, I type 'touch poo'. Every single time.

1 favourite 0 retweets

BRB, printing that koala photo at A3 for my bedroom wall twitter.com/kitttenqueen/s…

0 favourites 0 retweets

In reply to @mathpunk

@mathpunk @tweetsauce I'd guess it goes by checking everything up to the first power of 10 bigger than 9!

0 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel Ooh, nice! Thanks for pointing it out

0 favourites 0 retweets

Spotted a book with a nice title in the @NCLMathsStats library: "Plane answers to complex questions".
Can't work out if "complex" is punning on anything good though.
springer.com/gb/book/978144…

0 favourites 0 retweets

I love translations, me.
Very gratifying to see Numbas being used around the world.

Now getting sucked down the rabbit-hole of adapting the interface for right-to-left languages. twitter.com/NclNumbas/stat…

2 favourites 0 retweets

In reply to @stecks

@stecks nice to see the computers-go-wrong-near-Katie symbol go wrong. #wrongception

0 favourites 0 retweets

What is "one month after January 31"?
I want answers you can justify, not "tool X says it's Y"

0 favourites 0 retweets

In reply to @miclugo

@miclugo What's one month after January 30?

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@efrataitel More than that

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The votes are in: the majority seem to reckon you go to the last day of the next month. Hardly anyone went for what was my favourite answer, "just February". I feel that's most accurate, if not most precise. twitter.com/christianp/sta…

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow anyone can insert words to make a (stupid) point

0 favourites 0 retweets

In reply to @ruimvieira

@ruimvieira Congratulations!

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*makes copious notes* twitter.com/JSEllenberg/st…

1 favourite 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU @UniofNewcastle ooh, I was planning on doing some baking this weekend, and on picketing on Monday. Let's see if I can get it together to do both!

0 favourites 1 retweet

In reply to @evelynjlamb

@evelynjlamb sadly, none of 456789, 456987, 456123 or 456321 are prime

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And this is why we're on strike.
DB (defined benefit) is how the pension currently works. DC (defined contribution) is how they want it to work.
uss-pension-model.com

1 favourite 0 retweets

In reply to @jonpenguin

@jonpenguin 1.5% did seem a bit high!

0 favourites 0 retweets

In reply to @aap03102

@aap03102 Ooh, that's a nice one!

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths A more robust hash that could cope with minor copy-edits might be to take all the nouns and adjectives, optionally sort them alphabetically, and convert to lower-case.

4 favourites 0 retweets

In reply to @christianp

@standupmaths (then run through your hash of choice)

0 favourites 0 retweets

In reply to @ToonLibraries

@ToonLibraries Ooh, dixit and mysterium!

1 favourite 1 retweet

In reply to @NewcastleUniUCU

@NewcastleUniUCU sorry, I don't think there's going to be any left tomorrow...

0 favourites 0 retweets

In reply to @mathforge

@mathforge @standupmaths I've heard the same story.

0 favourites 0 retweets

In reply to @jamestanton

@jamestanton I'd love a concise way of saying "you're getting hung up on fitting this into one of the categories you already know about, why not just look at what it does?"

1 favourite 0 retweets

In reply to @solidangles

@solidangles @jamestanton But if it was called something like "a Lawson-Perfect error", I could just say "you're making a Lawson-Perfect error" and be on my way

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I have known true fear: a tube of superglue exploded on my hand.
#justkeepscrubbing

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Wow, @NewcastleUniUCU have run out of armbands for picketers. It's a huge showing!

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I see this prime number every time I walk upstairs and for ages I've been meaning to take a photo of it.
It doesn't *look* prime

5 favourites 1 retweet

In reply to @robotmaths

@AdamCreen Sure about that?

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts That's to take to messy play, right?

0 favourites 0 retweets

In reply to @GameAssistYT

@Criptacular @ucu @verbal_remedy Great article. I'm autistic and have dyspraxia and I picketed yesterday, for the first time. It knackered me.
Striking isn't just picketing - staying at home is also withholding your labour.
(Is there still an NCL autism group? Used to meet in a pub when I was a student 🙄)

1 favourite 0 retweets

Fairly sure I'm not a soccer wunderkind. twitter.com/RyanDeto/statu…

3 favourites 0 retweets

In reply to @CmonMattTHINK

@CmonMattTHINK I'm very interested, but not sure how much time I have to give detailed feedback

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor Ooh, I like that one! A subtle variation on the usual innumeracy

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc That's much closer than I was expecting!

2 favourites 0 retweets

I've spent my #ucu #strike days working on this toy language for computing with dates. It can finally work out MathsJam dates! It's approximately as efficient as Peano arithmetic 😬

1 favourite 0 retweets

March

In reply to @RobJLow

@RobJLow @sangwinc I think it's one of those things whose exact meaning only becomes apparent from context after it's used

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This video by @Ayliean is the nerdiest thing I've seen in weeks: solving the Towers of Hanoi to a beat, with a different note for each colour of disk.
(on what looks like an ironing board, in her PJs)
youtube.com/watch?v=dZ08FQ…

23 favourites 6 retweets

I bought a print of this years ago, when I visited the National Gallery. Never decided what to do it, but it's a cracking picture. twitter.com/NationalGaller…

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I'm looking for a reference about how students with things like dyslexia use calculators even when doing high-level pure maths, for basic arithmetic. My google-fu is failing me. Anyone? @DrSMJames

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"According to a regulatory filing Icahn was able to sell his shares for $32 to $34. On Friday morning Manitowoc’s shares had fallen 5.48% to $26.37."

$26.37 is 17.59% less than $32.

So is 5.48% a single-day drop? Percentages are hard enough to report!

theguardian.com/business/2018/…

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#leanin

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Sorry, I've forgotten - can someone remind me whose this fog is?

2 favourites 0 retweets

WHY AYE! twitter.com/njj4/status/97…

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What are some straightforward-ish things you can do to integers to produce another integer, and has at least 2 parameters?
I've got add/subtract/multiply by n; remainder when dividing by n; digit sum; gcd with n; lcm with n.
Not interested in square root - only one param!

0 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths ooh, that's a good one

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grows a bit too quickly - I'd like things that end about the same order of magnitude or smaller twitter.com/WoollyBenguin/…

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In reply to @SparksMaths

@SparksMaths nice!

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too easy - I want things that will take a couple of seconds of thinking, at least twitter.com/darrenjw/statu…

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In reply to @christianp

one avenue I'm particularly interested in: what can you do with the base-10 digits of an integer?

0 favourites 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam nice!

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I've made a little game to occupy my mind in a non-challenging way:
The Never-Ending Sum
christianp.github.io/the-neverendin…
It's like a colouring-in book, but for people who like doing sums.
I'm interested in ideas for other kinds of sums.

6 favourites 3 retweets

In reply to @christianp

Oh, forgot to say: it uses some disgracefully new browser features, so wont work on anything more than a year old

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In reply to @peterrowlett

@peterrowlett ?!?!

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In reply to @christianp

@peterrowlett Ohh, I see what's happening. Thanks for your continuing pedantry. Will fix.

0 favourites 0 retweets

In reply to @miclugo

@miclugo My wife agrees with you it's 'colouring book'

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"snicker-snack went the vorpal sword into the jabberwocky's creamed truffled spelt with buttered girolles"
(this menu is trying too hard)

3 favourites 0 retweets

In reply to @Plattsc

@Plattsc Thanks! Yes, see you then

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In reply to @robeastaway

@robeastaway @furthermaths The second one

2 favourites 0 retweets

If I've done things right, it should now be possible to add christianp.github.io/the-neverendin… to your phone's homescreen, for maximum idle summage

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#superfan twitter.com/efrataitel/sta…

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Snow is over (if you want it)

1 favourite 0 retweets

In reply to @statto

@statto the more crispy and extracted my chocolate, the better

1 favourite 0 retweets

In reply to @DrLucyRogers

@DrLucyRogers @standupmaths Graphemica's maths symbols section has 949 symbols - graphemica.com/categories/mat…
A few duplicates with different weights/sizes, and a lot that are just combinations of others. But "about 1000" is a decent order of magnitude for "symbols in use". Of course, anyone can make new ones

2 favourites 2 retweets

I can't not do this, now that I've noticed I've got four bottles, each made up of four parts

17 favourites 1 retweet

I've got an answer for this puzzle and it's absolutely done my noggin in.
mathstodon.xyz/@dudeney_puzzl…
Feels similar to that one about tying your shoelaces on a travelator

2 favourites 1 retweet

I've been trying to think of things to add to three.onefouronefivenine.com for this year's π day.
Anyone got any ideas? Maybe the continued fraction? twitter.com/aap03102/statu…

4 favourites 1 retweet

I'm picketing outside the Robinson library (currently on my own!) because it's not just lecturers who stand to lose out with the #uss changes

3 favourites 0 retweets

In reply to @christianp

And just handed a leaflet about joining @ucu to a chap who says he's just starting his job this week. Hope he does!

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w @NewcastleUniUCU @UCUNorthern I love your strike comics! Cheered up a few students on their way into the library today too

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge it's this little @aperiodical knock-off edited by young people

3 favourites 1 retweet

Just realised that if I accept the proposed #USS model of life expectancy growing 1.5%/year, then when I retire in 40-odd years, life expectancy will be double what it is now, i.e. about 160 🤨 #USSstrike

0 favourites 0 retweets

In reply to @jonpenguin

@jonpenguin Phew!

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In reply to @Andrew_Taylor

@Andrew_Taylor But I bet avocado is an absolute knacker to scrub out of train seat upholstery

1 favourite 0 retweets

It's #piday again! For reference, here are all the digits of π:
three.onefouronefivenine.com

11 favourites 6 retweets

In reply to @OlafDoschke

@OlafDoschke Yes, the hard part is putting them in order

1 favourite 0 retweets

In reply to @christianp

little Easter egg: you can keep adding digits to the URL - three.onefouronefivenine.com/twosixfivethre… - but it'll give you a 404 if you get it wrong - three.onefouronefivenine.com/twosixfivethre…

1 favourite 0 retweets

In reply to @christianp

I also made these slides to go with a talk for #piday 2016, about different ways of calculating π: checkmyworking.com/misc/pi-day-20…

2 favourites 0 retweets

Consider:
Rounding 49.7% to 50% shouldn't raise any eyebrows.
Rounding 99.7% to 100% is 😲

1 favourite 0 retweets

In reply to @jjaron

@jjaron Passover starts on the 30th

1 favourite 0 retweets

This post has existed in draft form since 2014. I've now been on #USSstrike for so long that I got round to finishing it off. Every cloud has a silver etc. twitter.com/aperiodical/st…

1 favourite 2 retweets

Reckon I can claim it on expenses, @NewcastleUniUCU? #USSstrike

0 favourites 0 retweets

In reply to @stecks

@stecks @bechillcomedian @AEOUD If you get the list of available items, we could knock up a script which picks a random combo for you to order each morning

3 favourites 0 retweets

In reply to @christianp

@stecks @bechillcomedian @AEOUD Oooh, here's a terrible app startup idea: an app that automatically downloads the menu of the restaurant you're in and suggests a randomly picked order. Bonus points if it can make the order for you (eg at wetherspoons)

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Back in Expiremont again. What scoince should I do while I'm here?

1 favourite 0 retweets

In reply to @AklMathsJam

@AklMathsJam It's interesting but needs a MASSIVE table

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This part of the world's like a misspelled geek paradise.

3 favourites 0 retweets

A puzzle castle! I wish we had something like this at home

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Hands of bananas helpfully labelled for those who can't count?

3 favourites 1 retweet

In reply to @JSEllenberg

@JSEllenberg Will you also enjoy a method that does not exist? read.somethingorotherwhatever.com/entry/Akritas1…

0 favourites 0 retweets

In reply to @TheHaitorean

@TheHaitorean This was in a Leclerc in France

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I wonder if l'expert comes from Les Mathes

4 favourites 0 retweets

Yet another geeky place name near Expiremont: there's a commune called Matha a bit north of here. en.m.wikipedia.org/wiki/Matha,_Ch…

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A list of mathematical concepts named after places! twitter.com/drvinceknight/…

2 favourites 0 retweets

In reply to @TheTomGannon

@TheTomGannon The @aperiodical has thousands of followers and always welcomes guest posts...

1 favourite 0 retweets

A Firefox extension which automatically puts Facebook in its own container, isolated from the rest of your browsing. Nice!
I suppose the other option is to prevent non-facebook sites from loading Facebook content blog.mozilla.org/firefox/facebo…

2 favourites 1 retweet

In reply to @Parcly_Taxel

@Parcly_Taxel As a picture?

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April

In reply to @peterrowlett

@peterrowlett V satisfying. Much more satisfying than my nephew's sorting toy, which has a hole at the top that all the pieces fit through 😣

0 favourites 0 retweets

In reply to @miclugo

@miclugo I have no suggestions, I just want to say you're definitely doing the right thing. Cook as much food as you can possibly fit in your freezer!

0 favourites 0 retweets

In reply to @FryRsquared

@FryRsquared @oliviawalch oh wow, that is spectacular!

1 favourite 0 retweets

In reply to @christianp

@FryRsquared @oliviawalch brb, printing out the page with the moon god

1 favourite 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU Weird, the options were displayed the other way round for me.

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro one of the doors on carriage 4021 is refusing to open. Will the driver be aware?

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In reply to @My_Metro

@My_Metro Front

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Oooof.

That's the sound of my brain being simultaneously nerdsniped and screeching to a halt on reading today's Dudeney puzzle: mathstodon.xyz/@dudeney_puzzl…

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100% truth twitter.com/benorlin/statu…

7 favourites 0 retweets

@mikegibson2010 Unfortunately, cooler heads prevailed and it's 'trits' en.m.wikipedia.org/wiki/Trit

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician I have that book!

1 favourite 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam @SmartGames_eu ooh, that looks interesting! What's it called?

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths I saw that magic square and immediately went round the corner to the gift shop to buy a t-shirt of it!

3 favourites 0 retweets

I see Northumbria Uni have now got a crest instead of that silly swoosh in their logo: northumbria.ac.uk/about-us/our-n…
Their new site looks way better than ours!
What with this, and the pensions, the poly is looking quite appealing!

0 favourites 0 retweets

When I was assessed for DLA (never mind PIP!) I broke down in tears at having to list all the ways I struggled.
The doctor said "are you sure you're not just depressed?" twitter.com/LoomesGill/sta…

7 favourites 3 retweets

In reply to @smorgasbord

@smorgasbord @TfL THERE ARE DIFFERENT COLOURS?!

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I know I said this months ago, but it's more true now: the end is in sight for my work on @NclNumbas v3. I'm at the end of my "must-have" feature list, and I've spent today writing documentation. Next: lots and lots of testing. 😅

1 favourite 1 retweet

In reply to @FOTSN

@FOTSN I cannot allow a misspelling of the word 'Perfect' to stand uncorrected.

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway a while ago I read something about pre-metric units that persist in continental Europe. I wish I could remember what they were! Lots were to do with food

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway I wonder if that's been translated from American - it also has references to cups and tablespoons.

0 favourites 0 retweets

In reply to @christianp

@robeastaway I'll consult my foodie mum, who is also a linguist and French teacher!

1 favourite 0 retweets

I love marbled paper so much twitter.com/MarshsLibrary/…

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson need a hand?

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson I've never used uwsgi, sorry.

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson have you tried any of flask.pocoo.org/docs/0.12/depl… ?

In the past I've either used Apache+mod_wsgi, or supervisor to run the Python app on port 8000-ish and nginx as a reverse proxy. Reverse proxies will defo take a day or two of head-bashing though.

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday you know, the formula for conversion between degrees and radians might be enough to push me over into preferring τ over π

0 favourites 0 retweets

In reply to @statto

@statto or, more pertinently, on the order of 100,000,000,000,000,000 for every transistor that's ever been produced

1 favourite 0 retweets

A masterpiece of the "gather a few people from the office and put your nicest figures all on one slide for the marketing photo" form twitter.com/ConnectomeLab/…

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I assume that some text in this paragraph on the @UKLabour disability access page is a different colour to hint that it's a link, but my colourblind eyes can't see it!
The contact page didn't make it clear how to get this comment to them either, hence this tweet.

1 favourite 1 retweet

Ah, the noble sound of a mighty Triumph conservethesound.de/en/sound-en/re…

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc It was in the IGCSE last time I looked. I agree entirely with that excerpt

1 favourite 0 retweets

In reply to @samholloway

@samholloway @JamieTheDyer @BBCNews Eunice?

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday I very nearly misattributed this theorem to Euclid just yesterday!

1 favourite 0 retweets

In reply to @stecks

@stecks Yep that's defo it

1 favourite 0 retweets

Happy 13²-th birthday, Felix Klein!
Happy 5²/2², everybody else!
Happy 6th birthday, @aperiodical!

7 favourites 5 retweets

In reply to @standupmaths

@standupmaths there's got to be a "Where's Matt?" in working out what flight you took based on the times of your tweets.

2 favourites 0 retweets

This has just reminded me I made an interactive punchcard simulator christianp.github.io/punchcards/ twitter.com/TeXtip/status/…

0 favourites 0 retweets

In reply to @stecks

@stecks So did you work it out in the end?

0 favourites 0 retweets

@danieltybrown I had the same conversation with my sister-in-law recently. So, don't hold out hope of eating all your cake at any point in the future

0 favourites 0 retweets

In reply to @stecks

@stecks the Lawson-PerGects receive your thanks.

2 favourites 0 retweets

In reply to @bengoldacre

@bengoldacre is the data that used to be on nerdydaytrips.com still in existence anywhere?

1 favourite 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel I agree. Still, it got people looking, and sometimes just knowing it's possible is a big help

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @suedepom @Pecnut No, it's more readily understood as a mixed fraction.

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc they haven't finished their big flashy rewrite, then?

0 favourites 0 retweets

"circle the number that is the same as the number of pictures" twitter.com/mafchauffeur/s…

0 favourites 1 retweet

May

In reply to @csgillespie

@csgillespie It is. Pipenv is supposed to make it better. I haven't looked at it properly yet

1 favourite 0 retweets

In reply to @JimPropp

@JimPropp I think you're supposed to spot that 10 shouldn't be multiplied by x. They're trying to get you to understand when things should have an x next to them - kids often sprinkle them about because they don't understand what it means

5 favourites 0 retweets

Recently I discovered a surprising fact about numbers, so I made an online web thing to give it the recognition it deserves.
Give it a go: somethingorotherwhatever.com/sum-of-3-palin… twitter.com/aperiodical/st…

20 favourites 8 retweets

In reply to @kiramaththan

@kiramaththan ahhh, it looks like it should have rotational symmetry but it doesn't!

0 favourites 0 retweets

In reply to @EuclidAcademy

@EuclidAcademy "0 is not a number" went out of fashion in the Renaissance.
I decided adding extra zeros was easier than changin my claim to "up to three palindromes"

0 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths @EuclidAcademy I think the sense @EuclidAcademy is going for is: if I say "there are a number of people in this room", negative numbers, 0 and 1 are all invalid quantities of people satisfying that statement.
That's just one context in which "number" is used, though

0 favourites 0 retweets

In reply to @christianp

(slightly embarrassed face: my testing code had bugs, so the code it was testing had undiscovered bugs. I think I've fixed them, and checked every number up to 10^7)

0 favourites 0 retweets

In reply to @Bishnavitch

@Bishnavitch

2 favourites 0 retweets

In reply to @mathemaniac

@mathemaniac What about the eyes and mouth?

1 favourite 0 retweets

In reply to @miclugo

@miclugo Congratulations!

0 favourites 0 retweets

You can always get my attention with a zero knowledge proof. The sudoku one is ace! twitter.com/OddsAndEvening…

0 favourites 0 retweets

In reply to @Derektionary

@Derektionary @panlepan nice idea!

1 favourite 0 retweets

In reply to @jjaron

@jjaron nah, the few millennials who are rich with inherited wealth or otherwise will consolidate their power. Why believe we'll look out for each other as a generation?

0 favourites 0 retweets

In reply to @jjaron

@jjaron I meant, why assume we'll as a generation attain political power, when we're not getting wealth?

0 favourites 0 retweets

In reply to @hnodrog

@hnodrog @mathemaniac I thought that was going to be a link to youtube.com/watch?v=LYs_GC…

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson remember when we all started using google because it didn't put adverts at the top like AltaVista and Yahoo did?

0 favourites 0 retweets

I especially enjoy the LED date display, just in case you (justifiably) think you've timewarped backed to the 1980s twitter.com/My_Metro/statu…

0 favourites 0 retweets

In reply to @getnorth2018

@getnorth2018 my colourblind eyes can't see the text in these boxes very well. I had to zoom in and max my screen brightness. Did your designers not consider accessibility while designing the accessibility box?! @colourblindorg

2 favourites 2 retweets

In reply to @jasonlikesbikes

@jasonlikesbikes @colourblindorg @getnorth2018 now I'm in my office looking at it on a big screen, I can read it, but it's very low contrast

1 favourite 0 retweets

This looks good twitter.com/MarcusduSautoy…

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In reply to @DanielColquitt

@DanielColquitt your own?

0 favourites 0 retweets

In reply to @DanielColquitt

@DanielColquitt depends on how much accompanying talking the slides need to be comprehensible. I use a format which lets me write notes alongside, but that's a lot of effort

0 favourites 0 retweets

In reply to @MrTilston

@MrTilston glad it delivered on its promises :)

1 favourite 0 retweets

In reply to @getnorth2018

@getnorth2018 @colourblindorg @jasonlikesbikes it's really good that you've got that page!

1 favourite 0 retweets

it's come to my attention that some new calculators show recurring decimals with a dot above the recurring digit, instead of showing as many digits as possible. Is that true? Any idea what model of calculator does that?

1 favourite 0 retweets

In reply to @Mathematical_A

@Mathematical_A ta!

0 favourites 0 retweets

Just had a real 'my hovercraft is full of eels' moment: Mrs L-P asked me "can you take the electric toothbrush to the undertaker and say it's for the tombola?"

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep When I met my wife, my best friend gave me two pieces of advice:
1. Don't be needy.
2. Don't talk about your poos.

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Yesterday I played Anomia for the first time. I think of it as "The axiom of choice: the game"
boardgamegeek.com/boardgame/1422…

2 favourites 0 retweets

Oh but of course this is an autism thing!
Mrs L-P quite often writes me instructions for things like "when we're putting the baby to bed" and "how to do a washing load".
I'm not stupid, I'm just brilliant at missing a step out or completely forgetting a crucial detail twitter.com/ShonaDav/statu…

4 favourites 0 retweets

In reply to @Shona_Mu

@ShonaDav is that Google Keep? I use it a lot to keep things I need to remember. Mainly ideas for birthday/Christmas presents for people, so I can just order when the time comes and don't lose a day to shopping stress

2 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @panlepan I'm missing something in Geometry Snacks #7. What fixes the angles in the smaller triangle?

2 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @panlepan phew!

Now I wonder how many people have (a) assumed that, and got the solution, and (b) not fully understood the given solutions, but moved on anyway

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @stecks also very hard to type without then wondering why Nikolai Gogol had a number named after him

0 favourites 0 retweets

The baby's current status:

1 favourite 0 retweets

In reply to @crashMATHS_CM

@crashMATHS_CM Question 1 looks wrong: I think you meant to have x^3 - 100x, not plus, in the numerator.

0 favourites 0 retweets

Yes please! twitter.com/merylkenny/sta…

0 favourites 0 retweets

In reply to @MathsTechnology

@MathsTechnology @crashMATHS_CM and don't forget x=0!

0 favourites 0 retweets

In reply to @MathsTechnology

@MathsTechnology @crashMATHS_CM 👎

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett it should start with a few questions assessing how pedantic you are, to establish if you're a professional mathematician

2 favourites 1 retweet

In reply to @RobJLow

@RobJLow @peterrowlett

0 favourites 0 retweets

First to implement this in a LaTeX package wins a Kit-Kat twitter.com/erik_kwakkel/s…

1 favourite 1 retweet

In reply to @mathforge

@mathforge go on then

0 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @panlepan one more: in the first solution to #16, I think you mean ADB' = 60, not DAB' = 60.

0 favourites 0 retweets

In reply to @christianp

@solvemymaths @panlepan then in the second solution, do you mean MC instead of CN? (there is no N)

0 favourites 0 retweets

In reply to @lorentzframe

@lorentzframe is the code for that online anywhere?

0 favourites 0 retweets

In reply to @xacobeo2002

@xacobeo2002 @lorentzframe Thanks!

0 favourites 0 retweets

criiiikey, was it really 4 years ago that I last reviewed mathsy games for @aperiodical? aperiodical.com/2014/09/some-m…

0 favourites 0 retweets

theguardian.com/business/2018/…
Article is about passenger numbers falling on the East Coast main line. To explain, cites people in London cycling more and getting Uber instead of the bus.
🤷‍♂️ 🤷‍♂️🤷‍♂️🤷‍♂️🤷‍♂️🤷‍♂️🤷‍♂️

1 favourite 0 retweets

So not Brexit, then. twitter.com/JDF/status/998…

1 favourite 0 retweets

In reply to @robotmaths

@AdamCreen are you any relation to Malcolm Creen, who works at Newcastle Uni?

0 favourites 0 retweets

In reply to @lunasorcery

@willkirkby in the vein of read.somethingorotherwhatever.com/entry/Kahan1998 ?

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I see Calvin-livetweets-conferences season has begun. Half the stuff I know about teaching I learnt from your conference tweets!

1 favourite 0 retweets

At @NEWCMathsJam I remembered that I'd coded up a version of the "I can name your polynomial" trick I saw @DavidB52s perform at @MathsJam, but never put it online.
It's now at somethingorotherwhatever.com/name-your-poly…
It's quite a nifty trick!

5 favourites 0 retweets

Oooooooooh! twitter.com/ZenoRogue/stat…

0 favourites 0 retweets

Hah, this is an account I can get behind! twitter.com/red_green_plot…

3 favourites 0 retweets

In reply to @rooneyvision

@rooneyvision There's making your tower look like a willy, and then there's naming your tower like a willy. Top marks on both counts here

0 favourites 0 retweets

In reply to @MrHonner

@MrHonner @Desmos I never thought of visualising that function! Nice!

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo Would Geogebra work?

2 favourites 0 retweets

In reply to @MrHonner

@MrHonner @JimPropp @Desmos I would expect to see the lines x+y=n more clearly. Maybe they could shift right to (T_n, 0) in one step, then rotate around those points until they lie flat on the x-axis

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @SparksMaths @k_houston_math @geogebra @Justamathnerd Inkscape is another option, if you just want to draw some shapes. The interface takes some getting used to though, more than Geogebra

0 favourites 0 retweets

In reply to @DrBennison

@DrBennison @sxpmaths @NclNumbas @edhall125 I'm happy to answer any questions you've got.
I'm very keen to look at how the interface could change to better suit younger students - at the moment it's mainly used in higher ed

1 favourite 0 retweets

Shopping for stair gates.
"Green and red pressure indicator ensures safety".
Not in this house it doesn't!

3 favourites 0 retweets

In reply to @TimHarford

@TimHarford but now I want a line of Princess Bride inspired Crayola colours. Indigo Montoya, Red Pirate Roberts, Main in Black, etc

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge

1 favourite 0 retweets

June

In reply to @NewcastleUniUCU

@NewcastleUniUCU @BirkbeckUCU This is a subject I'm passionate about but... I'm mindful of my workload and don't think I can spare the time

1 favourite 0 retweets

WHY WOULD MY LAPTOP GO TO SLEEP WHILE WINDOWS WAS UPDATING?!?!

1 favourite 0 retweets

On my way to Edinburgh to deliver a @Ri_Science maths masterclass. Twice. My daughter was up all night with her first cold, so I'm feeling tip-top!

6 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @DaveDysonSmith sudden flashbacks to downloading PDFs of Le Monde while doing A-Level French

0 favourites 0 retweets

In reply to @edsouthall

@solvemymaths @panlepan I've picked up your book again. In #29, what am I missing that forces the angle in the small triangle to be 90? It looks like the middle-sized square needs to have side length twice the shaded square. I can maintain the marked equal lengths without that

0 favourites 0 retweets

In reply to @panlepan

@panlepan @solvemymaths Phew! The proof didn't justify it at all, so I thought I was missing something trivial

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths I think you'll enjoy this: use the logistic map to get a function which fits any scatter plot perfectly colala.bcs.rochester.edu/papers/piantad…

4 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths yes. They pick it to hit given points at integer x, but let it go wild in-between

0 favourites 0 retweets

IMPORTANT GEORDIE NEWS
chroniclelive.co.uk/news/north-eas…

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans We're within a week of that happening, I reckon. Thanks for the warning

0 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl it's quite common to have an existential crisis when you're tired. If you want to not be having an existential crisis, take deep slow breaths.

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl Yeah, I get the same, and the same trick works. It's like a slow-burn panic attack

1 favourite 0 retweets

In reply to @christianp

@pwr2dppl It's funny how I care less about the extremely pressing issue of the uncaring cosmos in the morning

2 favourites 1 retweet

the stars of a very rare 2-term entry in the OEIS! oeis.org/A139410 twitter.com/wilderlab/stat…

4 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor finally, a counterpoint to all the listings and adverts in Newcastle that refer to "tram stops"

0 favourites 0 retweets

The high-pitched whine being emitted by this metro carriage is the sound of Summer 2018

1 favourite 0 retweets

Lawks! twitter.com/AdamBienkov/st…

2 favourites 0 retweets

Mrs L-P had a very happy accident at the photo printers

2 favourites 0 retweets

In reply to @robinhouston

@robinhouston where's that t-shirt from?

0 favourites 0 retweets

Wondering if there's any joy in backronyms: taking the last letter of each word.
For example, ERM = threE letteR backronyM

2 favourites 0 retweets

I really enjoyed the latest episode of @Samuel_Hansen's Relatively Prime, about a maths camp: relprime.com/girlstalkmath/

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith "budding"

1 favourite 0 retweets

When people move jobs between Durham and Newcastle unis do they have to buy a whole new wardrobe?

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 it's a balmy 18C here today, so not too different!

1 favourite 0 retweets

Got to applaud this international school doing web 1.0-style search engine optimisation in its website's title tag lis.ac.in

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo ooh crikey, that reminds me I need to pay!

0 favourites 0 retweets

Today: writing lots of code, writing tests, discovering code is wrong, fixing code, ad infinitum.

So high confidence and low ability today?

0 favourites 0 retweets

Most helpful statement of the year, from @ColinTheMathmo: "That's a list of 10 (in some base)"

7 favourites 1 retweet

tfw the smallest denomination of currency is way too large for the scale you chose

0 favourites 0 retweets

In reply to @christianp

never mind #bigdata, I'm concentrating my efforts on the real future of mathematics: #bigzero

1 favourite 0 retweets

In reply to @edsouthall

@solvemymaths I've just realised I'm in Huddersfield tomorrow and that's where you are! Would be nice to meet up.

1 favourite 0 retweets

In reply to @christianp

@solvemymaths actually, sorry, I've just been told my services are no longer needed in Huddersfield! Oh well!

0 favourites 0 retweets

Getting into a shoebox: The Dog Way™

2 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor a span with class="sortkey" style="display:none"

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor a template for formatting number values, looks like: en.wikipedia.org/w/index.php?ti…

0 favourites 0 retweets

In reply to @henryseg

@henryseg @JimPropp Sounds like an opportunity for @MathsGear

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith "dad bod poldark" is a glorious collection of syllables to roll around your mouth

0 favourites 0 retweets

I'm running a four-round instant knock-out tournament throughout the month of July to basically squeeze a load of fun maths out of my friends.
Let's see if we can make it all come together! Voting starts on the 1st of July. twitter.com/aperiodical/st…

7 favourites 4 retweets

Do you want ants? Because this is how you get ants!
#oneweirdtrick

1 favourite 0 retweets

In reply to @denmellen

@denmellen yeah, it's a very sugary sweet

0 favourites 0 retweets

This paper shows, among other things, that no hexagonal number is double another hexagonal number: arxiv.org/abs/1806.07981…

5 favourites 3 retweets

In reply to @pwr2dppl

@pwr2dppl I don't like getting t-shirts or laptop stickers from events for that reason

1 favourite 0 retweets

Maths lecturers: do you use Maple TA, and can my research scholarship students talk to you about it?

0 favourites 1 retweet

In reply to @DanielColquitt

@DanielColquitt @JoelHaddley Fab, thanks! @JoelHaddley, can my students email you some questions?

0 favourites 0 retweets

In reply to @SheckyR

@SheckyR I think @standupmaths will be mightily offended to be called British!

1 favourite 0 retweets

I'd completely forgotten about this visualisation of a proof-without-words of the pizza-cutting theorem (geogebra.org/m/C9kMuwj8), mentioned in a @tweetsauce video that @JoelHaddley (the real pizza expert) just sent me: youtube.com/watch?v=SXgF57…

1 favourite 0 retweets

An interesting piece on mathematically modelling toxic work culture, with interactive simulations, by @mmmaaatttttt: mattlane.us/stories/dishin…

1 favourite 1 retweet

I had an idea about a dynamical system, then had a fun time coding it up in @glitch: resonant-geography.glitch.me

8 favourites 2 retweets

In reply to @jamestanton

@jamestanton @knottedbowties @FictionConnect @ch_nira @aperiodical @sphs_maths @Beamathsteacher @Tiescou @FunkyNChunky_ I am greatly enjoying this bowties subplot to the competition.

1 favourite 0 retweets

In reply to @Pecnut

@Pecnut This tweet gives me the cold shivers. Rather you than me!

2 favourites 0 retweets

In reply to @nomad_penguin

@nomad_penguin @fyimaths Nice!

1 favourite 0 retweets

In reply to @Gelada

@Gelada @curvahedra now cook something on/in it!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ajk_44

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 @peterrowlett

0 favourites 0 retweets

It's 2AM. Do you know where your yoghurt is? twitter.com/hersenprofesso…

9 favourites 3 retweets

In reply to @colmmacc

@colmmacc If you were worried about RAND_MAX mod N earlier, shouldn't you also be worried about how quickly N! overtakes the number of states your RNG can be in?

0 favourites 0 retweets

July

And they're off! I can't believe I've managed to put this together. Hooray for maths! #bigmathoff twitter.com/aperiodical/st…

16 favourites 3 retweets

Round 2 of #bigmathoff starts in 10 minutes!

2 favourites 0 retweets

Maths: don't sweat the details twitter.com/Tony_Mann/stat…

0 favourites 0 retweets

In reply to @christianp

Meanwhile, round 1 could not be any closer! aperiodical.com/2018/07/the-bi…

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I do!

0 favourites 0 retweets

In reply to @Samuel_Hansen

@Samuel_Hansen @peterrowlett @aPaulTaylor Hah! It's one of the most popular poll plugins for WP. That is a ridiculous bug for it to have

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs if I tell you the first poll is at aperiodical.com/wp-json/wp-pol…, can you work out where the rest are?

1 favourite 0 retweets

In reply to @christianp

@mscroggs and please don't do anything silly like fetch that every second

1 favourite 0 retweets

Match 3! twitter.com/aperiodical/st…

0 favourites 0 retweets

I've updated my #bigmathoff wall chart. Have you?

4 favourites 1 retweet

In reply to @mscroggs

@mscroggs outstanding!

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs and it's helped me spot that the Propp/Griffiths poll wasn't set up correctly

1 favourite 0 retweets

In reply to @nrichmaths

@nrichmaths @ajk_44 this is like ENG-BEL all over again - both sides want the other to win!

1 favourite 0 retweets

Another stat to look out for: will @aperiodical pass 10,000 followers before the #bigmathoff finishes?

0 favourites 1 retweet

40 minutes to go in the @Samuel_Hansen v @aPaulTaylor first-round #bigmathoff match, and there are only 8 votes in it. This one's going down to the wire!
aperiodical.com/2018/07/the-bi…

1 favourite 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge does everyone else know about n-tuple elimination except me?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge to consider for next year. A bit hard to follow along with, I reckon.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge ... its Only Connect. I don't have Victoria Coren-Mitchell's wit or taste for the whimsical to carry it off

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo it means don't rest on your laurels!

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 you manage loads more interaction than I do

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 Yes, it took me a long time to find that balance, and it is heavily weighted towards sitting-quietly

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @Gelada @aperiodical and if the umpire had any say in the matter, he'd get big points for that

3 favourites 0 retweets

In reply to @christianp

@peterrowlett @Gelada @aperiodical (I just make the rules, I don't enforce them)

2 favourites 0 retweets

In reply to @Gelada

@Gelada @peterrowlett @aperiodical Famously named after me, of course

1 favourite 0 retweets

In reply to @mathhombre

@mathhombre @Gelada @peterrowlett @aperiodical He'll have been friends with my great-great-great-great-uncle Notso, right?

1 favourite 0 retweets

In reply to @Gelada

@Gelada @mathhombre @peterrowlett @aperiodical I can't believe I'm making jokes about my stupid surname on twitter

0 favourites 0 retweets

Just half an hour to settle the @peterrowlett v @ajk_44 #bigmathoff match. Notebook doodling or notebook folding? Get your vote in!
aperiodical.com/2018/07/the-bi…

1 favourite 2 retweets

The @Gelada / @ColinTheMathmo #bigmathoff match is hotly-contested: both have more votes than any other competitor so far, and they're only halfway!
I know Colin loves a graph, so here's one.

6 favourites 2 retweets

The #bigmathoff is paying off: I just showed @ColinTheMathmo's card trick to a student ambassador who'll be wowing kids with it at our primary STEM fest this weekend.

6 favourites 2 retweets

In reply to @Gelada

@Gelada @ColinTheMathmo 😉

0 favourites 0 retweets

Loving being able to watch my summer student coding in @glitch while he's sat next door

3 favourites 0 retweets

I just noticed a fact that I hadn't seen before, which I've illustrate with two examples over on Mathstodon, where we have LaTeX rendering:
mathstodon.xyz/@christianp/10…

What's the pattern?

0 favourites 0 retweets

In reply to @jjc578

@jjc578 @msbjacobs @Lisaqt314 @MathsJam that problem is veeeeery old!

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @aperiodical @Gelada @aPaulTaylor Martha Matics has many tricks up her sleeves

0 favourites 0 retweets

yesssss it's working! Look at those tasty numbers! #bigmathoff

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical @standupmaths @mscroggs guess who forgot to set up a header image and corrected title for this post...

1 favourite 0 retweets

In reply to @Gelada

@Gelada @ColinTheMathmo here's the final graph. Edmund, just how many people did you canvass?!

2 favourites 1 retweet

There's still plenty of time to vote in the @evelynjlamb v Tiago Hirth #bigmathoff match. I really like this one - both things were new to me, a novel rope trick and an unusual holey space. Evelyn currently slightly ahead.
aperiodical.com/2018/07/the-bi…

4 favourites 2 retweets

I'm setting up the posts for round 2 of #bigmathoff. The last two are currently in a superposition of states: I've got to write text as if all 4 competitors won their round 1 matches.

4 favourites 0 retweets

In reply to @Gelada

@Gelada @ColinTheMathmo I think we can all agree that Colin's is the connoisseur's favourite.
However, my love for aperiodic tilings is evident in the name of my website.

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs a strange game. The only winning move is not to play.

7 favourites 0 retweets

I've finally enabled HTTPS on aperiodical.com! Phew, my host didn't make that easy. getssl (github.com/srvrco/getssl) saved the day

3 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb I haven't yet had to employ my Very Scientific method for breaking ties

1 favourite 0 retweets

In reply to @ReadingEuclid

@ReadingEuclid Is the Arabic printed? Would it be typeset, or an engraving?

0 favourites 0 retweets

@robbderkatz @aperiodical @standupmaths @mscroggs That is MASSIVELY intriguing

0 favourites 0 retweets

Half an hour to go in the @evelynjlamb v Tiago Hirth #bigmathoff match, and Evelyn is ahead by 35 votes. There's still time to swing it if rope tricks get you tied up in knots! aperiodical.com/2018/07/the-bi…

0 favourites 0 retweets

And at the halfway point in the Big Internet Matt-Off, @mscroggs is ahead by quite a way, which means @standupmaths will go through to round 2.
Prefer fruity #dataviz to matchbox #ML? Get your #bigmathoff vote in!
aperiodical.com/2018/07/the-bi…

3 favourites 1 retweet

In reply to @c0mplexnumber

@c0mplexnumber Inkscape's clone tool is erratic as heck but can do basically anything you can think of

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician @mathhombre @stecks @evelynjlamb @aPaulTaylor Katie is forbidden from taking part because we basically need to stage an intervention to stop her doing unpaid work.

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs it's alright: the S is silent

0 favourites 0 retweets

At the halfway point in the @JimPropp / @ZoeLGriffiths match, and the airplane seating problem is running away with it!
Is the knot trick too unbelievable? Try it yourself! #bigmathoff

3 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @mscroggs @Andrew_Taylor @Mrrismithmaths @MathsJam well, that's now my entry. Next year's #bigmathoff needs to be absolutely byzantine

0 favourites 0 retweets

Half an hour left in the @JimPropp v @ZoeLGriffiths #bigmathoff match, and it's looking like a victory for absentminded flyers. Both competitors put a huge amount of effort into their pitches - have a look and a think, and vote!
aperiodical.com/2018/07/the-bi…

0 favourites 1 retweet

What does it mean when you've peer-reviewed tons of papers but only published one?
Is there such a thing as PhD-by-standing-in-community?

4 favourites 0 retweets

I've made a thing which draws diagrams to compute divisibility by N in any base, using @glitch.
divisibility-diagrams.glitch.me

28 favourites 10 retweets

In reply to @cameronesfahani

@cameronesfahani @theoremoftheday start at 0. Dotted line leads back to 0. First digit 1, move 1 green arrow round to 1. Dotted line leads to 2. Next digit 2, move 2 green arrows round to 0. Dotted line leads to 0. Final digit 0, don't move.
You finished on 0, so 120 is divisible by 4

0 favourites 0 retweets

In reply to @cameronesfahani

@cameronesfahani @theoremoftheday It's awkwardly worded to save space. I'll have another go

0 favourites 0 retweets

In reply to @christianp

I think the rectangular pattern in that divisibility by 22 diagram should be much better known. Would you have expected it?

0 favourites 0 retweets

This is divisibility by 98 in base 66. That's an interesting shape!

7 favourites 3 retweets

In reply to @cameronesfahani

@cameronesfahani @theoremoftheday I've changed the wording - any clearer now?

0 favourites 0 retweets

In reply to @lunasorcery

@willkirkby @glitch like, technically, or the maths?

0 favourites 0 retweets

In reply to @christianp

@willkirkby @glitch you're interested in the remainder when dividing k by N. Start with remainder 0. For each digit in k, multiply your current remainder by 10 (i.e. shift all previous digits left 1 space), then add the digit. Work mod N. If you end up back at 0, you've got a multiple of N

0 favourites 0 retweets

In reply to @christianp

@willkirkby @glitch Dotted blue lines from space i point to (10*i) mod N. Solid green lines point to (i+1) mod N

0 favourites 0 retweets

In reply to @christianp

@willkirkby @glitch I've written this, but in more detail, at divisibility-diagrams.glitch.me/what.html

1 favourite 0 retweets

In reply to @Tony_Mann

@Tony_Mann @mathsjem Yellow card: simulation. Play on.

1 favourite 1 retweet

The best part of the #bigmathoff is the top-notch game show host patter I use in emails that only the competitors see.

1 favourite 1 retweet

In reply to @christianp

(If you took part in the #bigmathoff and didn't get an email with a segue performed by a load-bearing pun, you may be entitled to compensation)

0 favourites 0 retweets

In reply to @Gelada

@Gelada @standupmaths @peterrowlett @aperiodical @mscroggs I'm now thinking about the time we were on Matthew Parker Street and wondering if this is a Talented Mr Ripley situation

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett *may*

0 favourites 0 retweets

In reply to @CPANJGamble

@CPANJGamble The vertices represent remainders. Like divisibility by 12 in base 10 has 12 vertices.

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn "probably not possible" is like a red rag to a bull at MathsJam

2 favourites 0 retweets

In reply to @Gelada

@Gelada @peterrowlett @aperiodical There will be tomorrow

0 favourites 0 retweets

My brain clung on to this illusion until the very last frame. Wow! twitter.com/juliomulero/st…

20 favourites 5 retweets

My #bigmathoff wallchart is up to date. Is yours?

9 favourites 2 retweets

I quite like the look of my divisibility diagrams, collected together. Here are the diagrams for 1 to 12 in base 10.

6 favourites 3 retweets

In reply to @alisonkiddle

@ajk_44 *takes a closer look at the accompanying images*

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @ch_nira @ajk_44 technically second place, the best kind

1 favourite 0 retweets

Email from hotel: "would you like to add breakfast to your booking, for just €23.50 per person per night?"
I don't spend that much on dinner! 😂

5 favourites 0 retweets

In reply to @MathWithWoody

@MathWithWoody @c0mplexnumber @ngpshth Snap! twitter.com/christianp/sta…

2 favourites 0 retweets

In reply to @OlympicsProf

@OlympicsProf @colourblindorg Pedantry: I'd expect there to be a selection effect leading to that stat being lower. Could say that 1 player on every team *should* be colour blind

0 favourites 0 retweets

In reply to @colourblindorg

@colourblindorg @OlympicsProf I think it's worth looking into. Selection effects in pro sports can be huge - like fencers are roughly 50% left-handed.

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 What am I, your magic graph fairy? @ch_nira #bigmathoff

2 favourites 1 retweet

In reply to @CounterOfSheep

@CounterOfSheep @samholloway I'm in my early 30s and remember the Italia 90 themed memorabilia at the Happy Eater on the A1

1 favourite 0 retweets

Herringbone patterns are everywhere in The Hague. But that's not my most exciting tiling spot of the day...

7 favourites 1 retweet

In reply to @christianp

... this Cairo tiling is! @evelynjlamb @panlepan

9 favourites 1 retweet

We might be out of the football but we're the sand castle champions Of THE WORLD!
(also: "Baldrick Buckle" is such an astoundingly British name it must be fake)

0 favourites 0 retweets

In reply to @christianp

Looks like Baldrick might have won purely for not getting the horn and putting gratuitous totty on his sculpture, like basically all the other entrants

0 favourites 0 retweets

In reply to @christianp

Although, kudos to the Irish entrant for protesting the prudishness of other nations (that was literally on his artist's statement) with an almighty slab of SAND HUNK

0 favourites 0 retweets

In reply to @panlepan

@panlepan @evelynjlamb @tessellationfan Crowne Plaza Hotel, Den Haag

1 favourite 0 retweets

Just realised I got the order of the #bigmathoff matches wrong and either @evelynjlamb or @ZoeLGriffiths only have 48 hours to write and send me their semi-final pitches. Sorry! All in favour of moving back to the 18th?

1 favourite 0 retweets

tfw when you're in a world heritage site but someone once told you a fun fact about the different ways of laying bricks so that's all you can concentrate on

15 favourites 2 retweets

Be still, my beating heart!

4 favourites 0 retweets

I love this legally mandated symbol at the bottom of an advert showing a person literally weighed down by their debt

2 favourites 0 retweets

In reply to @SheckyR

@SheckyR @ZoeLGriffiths @ch_nira @standupmaths @Gelada How come you used surnames for men and first names for women?

0 favourites 0 retweets

When's the last time mathematical typesetting this good appeared in a newspaper? twitter.com/phalpern/statu…

7 favourites 2 retweets

Just over half an hour until the #bigmathoff gets going again.
Furthermore, I'm back from my holiday, so can return to thinking about FUN MATHS

1 favourite 0 retweets

In reply to @apgox

@apgox he'll be paying tax on some of that $11 million

0 favourites 0 retweets

In reply to @NewcastleCC

@NewcastleCC do you only publish these colour-coded calendars for term dates? Are they in text anywhere? newcastle.gov.uk/education-and-…
Very hard for my colourblind eyes to interpret! @colourblindorg

1 favourite 1 retweet

This gives me the absolute horrors: "let's take Cuisenaire rods, remove all the abstraction, and bolt on the completely arbitrary shapes of digits" touchmath.com/index.cfm?fuse…
But *of course* it's an American product

4 favourites 2 retweets

In reply to @christianp

aaarrrrrr, I looked at it again and I'm angry again!

3 favourites 1 retweet

In reply to @Pyfagorass

@Pyfagorass breadth-first, depth-first, ... length-first?

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett I extremely approve

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor it is interesting that despite all of the other parts of the constitution going out the window, there's been no talk of the Queen intervening

0 favourites 0 retweets

The second #bigmathoff semi-final is starting in 10 minutes. Meanwhile, we're at the halfway point in the @ch_nira v @ZoeLGriffiths match and it's close! This one could go either way

5 favourites 3 retweets

In reply to @mscroggs

@mscroggs @ColinTheMathmo @ZoeLGriffiths there have been a few swapped leads, but most notable was @ch_nira overtaking @jamestanton late in round 1. Was fairly close before that, but James was mostly ahead.

2 favourites 1 retweet

In reply to @christianp

@mscroggs @ColinTheMathmo @ZoeLGriffiths @ch_nira @jamestanton the @Gelada v @ColinTheMathmo round 1 match also turned round after about 6 hours, and never really looked back. (This one's a percentage chart because the gradient went crazy)

2 favourites 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths @mscroggs @ColinTheMathmo @ch_nira @jamestanton I see the rumour that I'm a magic graph fairy is spreading. Kiddle v Chamberlain was close, but Nira was basically always in the lead

1 favourite 0 retweets

In reply to @DaliBee67

@AliDaliBee @MathsJam Assuming equal numbers of each colour, and enough sweets to ignore change in proportions, 6/125, or just over 4%. Three 1 in 5 picks, and 6 orders the colours can appear.

0 favourites 0 retweets

Our maths e-assessment conference is fast approaching!
Free for students, reassuringly cheap for everyone else. Two and a bit days in gloriously sunny Newcastle, with some top speakers, and @getnorth2018 will still be on! What's not to like? twitter.com/EAMSConf/statu…

2 favourites 3 retweets

In reply to @christianp

@getnorth2018 (I don't often tweet about work from this account, but when I do, I make rashly optimistic statements about the local weather)

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @ajk_44 @mscroggs @ch_nira @aperiodical I'm glad the #bigmathoff made this conversation happen.
(I won't be at MATRIX because it clashes with the tiniest L-P's birthday. Nira, come to big mathsjam!)

6 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ajk_44 @ch_nira but Zoe's name has an odd number of letters, while all the others in the semis have an even number. If you care about diversity *at all*, you should vote Zoe.
(Overthinking your vote is strongly encouraged)

0 favourites 0 retweets

I still have yet to break out my Extremely Fair method for breaking ties. Vote underdog if you want to see it! twitter.com/evelynjlamb/st…

1 favourite 1 retweet

As someone who took a pay cut to have a 4-day working week, for health reasons, this both gladdens and saddens me twitter.com/tentivetodetai…

1 favourite 0 retweets

Well, I've found the location for dinner on the first night of #EAMS2018 - chroniclelive.co.uk/whats-on/food-… @sangwinc

0 favourites 0 retweets

Name something that between one half and two thirds of people do.

0 favourites 0 retweets

VERY RELUCTANT RETWEET twitter.com/drvinceknight/…

2 favourites 0 retweets

Here's the final graph of the @ch_nira v @ZoeLGriffiths #bigmathoff semi-final. What a contest!
#graphfairy

6 favourites 2 retweets

Not keen on counting this as a thing you 'do', but good stat searching! twitter.com/Kevin_T_42/sta…

1 favourite 0 retweets

*pats head of daughter*

This baby can fit so much rice pudding in her

6 favourites 2 retweets

In reply to @nomad_penguin

@nomad_penguin @Gelada Omg, we have an @aperiodical post on exactly that coming out tomorrow morning!

1 favourite 0 retweets

Forgot to post this photo from my holiday, of the saddest item in the toy shop: a pad full of extra sums and spellings to do on your holiday.
God help the kid that's given this.

1 favourite 0 retweets

This is why I married her: in-depth wee wee position knowledge twitter.com/Helen31098957/…

1 favourite 0 retweets

The @aperiodical has just passed 10,000 followers! Thanks for loving maths, everyone! Well done @peterrowlett, @stecks and everyone else who's contributed to the site

20 favourites 1 retweet

In reply to @evariste1832

@evariste1832 @aperiodical Number, Colour, Shading and Shape. I've just spotted that I incorrectly changed the "value" column for Number - coordinate 0 should correspond to 3 shapes

1 favourite 0 retweets

I've finally managed to order a 3D printer for @NCLMathsStats! Whoop!

2 favourites 0 retweets

One for @wacnt - Proportion of UK train routes that don't go through London

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 I take it D_n doesn't refer to the dihedral group here.
TikZ is something I'd gladly spend vast portions of my time on if I could. It's like magic!

1 favourite 0 retweets

Votey McVoteface! twitter.com/aperiodical/st…

4 favourites 2 retweets

In reply to @CardColm

@CardColm Looks like pm to me: one reflection, and translations

0 favourites 1 retweet

In reply to @christianp

@CardColm but there's more symmetry if you add "swap colours"

0 favourites 1 retweet

In reply to @NEWCMathsJam

@NEWCMathsJam I'll be celebrating a tiny relative's birthday tonight, but make sure you all look at the #bigmathoff: aperiodical.com/2018/07/the-bi…
30 bits of interesting maths to talk about!

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @aperiodical well-spotted; fixed

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Following discussion of the names that @nrichmaths uses in its puzzles, I've made a standalone version of the tool I made to randomly pick statistically fair names for @NclNumbas, and put it on @glitch:
random-people.glitch.me
Randomly pick names following ONS frequency stats!

6 favourites 3 retweets

I just saw a roughly 1 in 1000 event: 10 males in a row, when I was picking any gender! twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @christianp

oh no, 1 in 500, because I would've been equally surprised by 10 females

0 favourites 0 retweets

In reply to @reflectivemaths

@reflectivemaths I thought I saw an ad for a Christmas panto yesterday, but it was for... a Summer panto?!?!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @nrichmaths @NclNumbas @glitch I *knew* someone had generated names recently! Not clear from that site if names are picked uniformly

0 favourites 0 retweets

In reply to @jjc578

@jjc578 mathpuzzle.com is a classic.

0 favourites 0 retweets

12 and a bit hours to go in the #bigmathoff final, and @ch_nira is over 200 votes ahead!
Is it a done deal for applied maths, or is there a big swing towards fractions waiting to happen?
aperiodical.com/2018/07/the-bi…

10 favourites 9 retweets

Just under an hour to go in the #bigmathoff final and @ch_nira is maintaining his lead.
I highly recommend listening to @Samuel_Hansen's #relprime interviews with Nira, me and @standupmaths: relprime.com/bigmathoff
Then vote!
aperiodical.com/2018/07/the-bi…

1 favourite 1 retweet

Magic is happening!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @GKStill arg! I forgot it was doing this. I've closed the poll manually

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @onceoffac @ch_nira I've always been very clear that math-off means math-off

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ajk_44 I prefer to think of it as joint-second-last

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Phew, that was fun! I've so enjoyed running the #bigmathoff, and seeing the 30 bits of fun maths that the competitors came up with.
I really appreciate all the positive comments from people following the competition.
Many thankyous to follow...

25 favourites 1 retweet

In reply to @christianp

First of all, thanks to the competitors, who agreed to go along with what began as a very vague idea, and were all such good sports: @jamestanton, @Samuel_Hansen, @peterrowlett, @ColinTheMathmo, Tiago Hirth, @mscroggs, @JimPropp, @Tony_Mann, ... (1/2)

5 favourites 0 retweets

In reply to @christianp

@jamestanton @Samuel_Hansen @peterrowlett @ColinTheMathmo @mscroggs @JimPropp @Tony_Mann ... @ajk_44, @aPaulTaylor, @evelynjlamb, @mathsjem, @ZoeLGriffiths, @Gelada, @standupmaths, and of course, the World's Most Interesting Mathematician, @ch_nira!

8 favourites 1 retweet

In reply to @christianp

@jamestanton @Samuel_Hansen @peterrowlett @ColinTheMathmo @mscroggs @JimPropp @Tony_Mann @ajk_44 @aPaulTaylor @evelynjlamb @mathsjem @ZoeLGriffiths @Gelada @standupmaths @ch_nira Thanks to @stecks for providing input and her usual superhuman admin powers, @mscroggs (again) for making a ruddy CEEFAX PAGE! of the results, and @Samuel_Hansen for podcasting throughout.

11 favourites 3 retweets

I'm going to assume this happens to me daily now twitter.com/tim_jeffree/st…

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc @katemath There's something to think about in the possible combinations of ages you'll see, depending on the order of their birthdays. 2 options for 3 kids, but (n-1)! options for n kids?

0 favourites 0 retweets

it's a year since we bought our house, which means that _everything_ is coming up for renewal. Can I be bothered to shop around for each of the many suppliers involved in making a house habitable?

#sadmin

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In reply to @lyd_w

@lyd_w @ICCE52906275 UEL, the only university located on a runway

0 favourites 0 retweets

Imagining the size of a survey that would justify reporting that percentage to 3 sig figs. How many professional DJs are there in the UK? twitter.com/qikipedia/stat…

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans Would POP SONG'S FOR PEDANTS be both acceptable and infuriating?

2 favourites 0 retweets

In reply to @christianp

By continued fraction approximation, 23.1% is incredibly close to 76/329 or even 3/13. Those are small samples!

0 favourites 0 retweets

In reply to @WoollyBenguin

@WoollyBenguin Good point!

0 favourites 0 retweets

Yes! When I hear colleagues complain about laptops in lectures, I want to say I wouldn't know 10% as much maths if I hadn't been playing FreeCell throughout my entire degree twitter.com/RobertTalbert/…

1 favourite 0 retweets

In reply to @denmellen

@denmellen @peterrowlett @aPaulTaylor I googled it: fivethirtyeight.com/features/the-u…
42 out of 182 wedding playlists submitted to fivethirtyeight. Barely enough for 2 sig figs. That fraction does indeed reduce to 3/13. Poor show, @FiveThirtyEight!

1 favourite 0 retweets

MMM?!?!

2 favourites 0 retweets

In reply to @christianp

The form has gone on to tell me that I've submitted my own personal details incorrectly.

2 favourites 0 retweets

In reply to @christianp

Ah, the unrecoverable error was to put a space in the middle of my postcode, like I did on the price comparison site, and because that's how postcodes work

0 favourites 0 retweets

In reply to @christianp

... and someone hasn't done their GDPR audit properly: opt-out checkboxes for SMS marketing

1 favourite 0 retweets

Oooh, that's annoying of JavaScript:

> 1/0.00001
99999.99999999999
> 1000/0.01
100000

5 favourites 0 retweets

In reply to @christianp

it gets worse!

>1/0.0000001
10000000
>1/0.000001
1000000
>1/0.00001
99999.99999999999

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett yeah, the problem is with floating point numbers

0 favourites 0 retweets

In reply to @samholloway

@samholloway @peterrowlett I suppose the problem in JS is that not using the built-in floats is an absolute slog

0 favourites 0 retweets

In reply to @samholloway

@samholloway @peterrowlett 😲

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow @peterrowlett indeed

0 favourites 0 retweets

In reply to @jd_p

@jd_p ONE HUNDRED PERCENT!!!

1 favourite 0 retweets

August

The motion graphics at #icm2018 are pretty groovy!

1 favourite 0 retweets

Those vignettes about the Fields medal winners are absolutely excellent #ICM2018

4 favourites 3 retweets

In reply to @christianp

Beautiful, humanistic videos about being a mathematician and doing maths. I'm a little bit emosh

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge So it's Augustus' Laws and Abraham's Laws?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I consider those to be the same thing

0 favourites 0 retweets

I let out an involuntary 'ooooooh!' when I came into the office and saw this. So pretty!
This is @henryseg's "Developing Hilbert curve"

159 favourites 42 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge According to this, Leonardo da Vinci called himself Leonardo da Vinci thoughtco.com/what-was-leona…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett if I say "da Vinci", you know who I'm talking about

0 favourites 0 retweets

I've got a new laptop.
1) I need a new sticker for the lid
2) can I put up with this, or will my left hand become crippled after too much Ctrl+Fn?

0 favourites 0 retweets

In reply to @christianp

@henryseg I downloaded the model from thingiverse and left it printing overnight.
thingiverse.com/thing:1696383
Isn't the future fab!

6 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt it's got a numpad, so I'm considering remapping the - and + keys to page up/down

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt I've remapped the - and + keys, and as long as I don't look down I think I'll be OK

0 favourites 0 retweets

Ooooh! polysphe.com twitter.com/zellersamuel/s…

0 favourites 0 retweets

In reply to @aperfect

@aperfect There's a numpad to the side, and I think I'm going to have to get used to using it

0 favourites 0 retweets

In reply to @DominiqueMassot

@DominiqueMassot Elles ne sont pas si chers: nous avons dépensé vers €400 (£400, mais c'est la même maintenant) pour la notre.

1 favourite 0 retweets

in "23 kg/m^2", what do you call the "kg/m^2" bit? Units formula, units description, just 'units'?

0 favourites 0 retweets

In reply to @christianp

I want a word for the bit of notation, not for the abstract dimension/unit it represents

0 favourites 0 retweets

90% of the thinking behind my convoluted surname was a pragmatic strategy to get us and any children past the fascists at border control with less fuss. What's a surname if not a tool of the state, anyway? twitter.com/ukhomeoffice/s…

3 favourites 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths you try saying it quickly

0 favourites 0 retweets

I was just thinking about this yesterday! In short: brand-new Fields medallist Peter Scholze thinks he's spotted a big problem in Mochizuki's abc proof twitter.com/stevenstrogatz…

6 favourites 3 retweets

In reply to @benjamindickman

@benjamindickman @QuantaMagazine drama!!!

0 favourites 0 retweets

In reply to @joonu75

@joonu75 @stevenstrogatz or this might be like "Is Thompson's group F amenable?" and drag on for decades

1 favourite 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep Is there any other way?

0 favourites 0 retweets

Earlier, I'm not sure if I made a sign or a parity error: I tried to unlock the door of the room I was leaving, instead of the door of the room I was going into

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep The impossible dream. I usually end up delivering postcards by hand

0 favourites 0 retweets

Spontaneous weetabix smiley

5 favourites 0 retweets

I don't keep up with youtube any more, but thanks to @evelynjlamb's newsletter for showing me this video about food labelling shenanigans by @vihartvihart youtube.com/watch?v=mxNPpt…

1 favourite 0 retweets

In reply to @aperfect

@aperfect uh-oh! ultimatelenshood.com

0 favourites 0 retweets

In reply to @PaulRodrigo2718

@PaulRodrigo2718 @Mathematical_A @edfringe London has Isaac Newton outside the @britishlibrary, at least.

0 favourites 0 retweets

Is this a standard 3d printer beginner's idea: a cube, and copies with double the volume, surface area, and side length.

19 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge you can't nerdsnipe me into finding numbers which multiply by n=3,4,...,9, I've got real work to do! Not today, Beveridge!

2 favourites 0 retweets

In reply to @carolspringett5

@carolspringett5 absolutely. The one we've got, a Flashforge Finder, took about 20 mins to set up and got printing straight away. The software is v easy to use, download objects from thingiverse.com and press 'print'!
Resulting objects very sturdy.

1 favourite 0 retweets

In reply to @apgox

@apgox now I feel bad about not knowing any Galois theory, again

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge still not nerdsniped

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge .... STILL ... not ... nerdsniped ...

1 favourite 0 retweets

I've just discovered that Blackboard have a page listing their patents. Among them is this absurdly broad one for "allowing something to happen based on who's asking to do it" patents.google.com/patent/US87630…

1 favourite 1 retweet

In reply to @lunasorcery

@willkirkby less ranty

1 favourite 0 retweets

Are chemists universally terrible at computers? I'm trying to find a downloadable set of spectroscopic data for the elements, and to call the pages I'm finding "web 1.0" would be to flatter them.
Does everyone just use a commercial package? Where's the open chemistry software?

0 favourites 0 retweets

Earlier on, a butterfly flew alongside me and I was like

Is this a meme?

17 favourites 0 retweets

I will never complain about the way mathematicians name things again: chemists have it way worse.

7 favourites 0 retweets

4 Herschel enneahedra, with parameters from 0.25 to 1. Next job: convince some naive youngsters that somewhere in this range there's a fair nine-sided die.

5 favourites 0 retweets

I'm doing some hard thinking about type systems, and getting serious impostor syndrome. I'm not a computer scientist! Whatever I end up with will doubtless be less than ideal in many ways. Hrm

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans Since the distance is constant, if it was a graph of speed it'd look the same *and* the axes would make sense

3 favourites 0 retweets

In reply to @ch_nira

@ch_nira @aperiodical @JJrhule1 @IMAmaths @BB_STEM @GKStill @SophieBays @snezanalawrence Oh my god, the t-shirt!!! 😍
Well done @JJrhule1

1 favourite 0 retweets

The number for reception at this hotel is 1729.
Nobody else here is as excited by that as I am!

133 favourites 28 retweets

There's *quite* sine implied sexism on this sign, isn't there?

1 favourite 0 retweets

In reply to @stecks

@stecks #femaleprivilege

0 favourites 0 retweets

I think of the baby as a black hole, and she's just reached critical mass: if food goes near her, it doesn't escape.

5 favourites 0 retweets

I could watch this all day twitter.com/dhabecker/stat…

1 favourite 0 retweets

Me, a mathematician, overthink things? Perish the thought!
#bikeworries

7 favourites 3 retweets

In reply to @peterrowlett

@peterrowlett

0 favourites 0 retweets

In reply to @OddsAndEvenings

@OddsAndEvenings re the combinations thing in episode #18: massive spoilers, and a cool card trick, here: aperiodical.com/2012/08/davids…
@jamesgrime did a video about the exact lock you were talking about a while ago, but I can't find it

1 favourite 0 retweets

In reply to @jamesgrime

@jamesgrime @OddsAndEvenings That's the one!

0 favourites 0 retweets

In reply to @reflectivemaths

@reflectivemaths Price of a pint of milk

1 favourite 0 retweets

There's lots of activity happening over on mathstodon.xyz, the Mastodon instance that @ColinTheMathmo and I run.
One highlight: ways of deriving the formula for the sum of squares without using induction mathstodon.xyz/@karenshancock…

1 favourite 1 retweet

I've been giggling for days at the idea of a Londoner trying to ask for directions to Swalwell

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor @matheknitician How often do you divide your dishwasher tablets up evenly?

1 favourite 0 retweets

What's the maximum distance I can orbit the Earth and still respond to an RFC 6238 one-time code challenge? @wacnt

0 favourites 0 retweets

In reply to @christianp

@wacnt if I do some of the thinking for WolframAlpha, it can do it: just under 11,000 times as far away as the ISS, assuming we're using the default 30 second time step wolframalpha.com/input/?i=(spee…)

0 favourites 0 retweets

Peak waffleheadedness: I've just had to look up the title of the talks I'm giving next week, on the website that I wrote, for the conference I'm organising,

10 favourites 0 retweets

"I know, I'll start the working week with an easy five-minute bug" twitter.com/NclNumbas/stat…

1 favourite 0 retweets

In reply to @SamHartburn

@SamHartburn I'd imagine you have two proofreaders read the book, then do something with the number of errors only found by one proofreader

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @SamHartburn My brilliant plan not to read your blog right now has backfired

1 favourite 0 retweets

In reply to @mathsjem

@mathsjem @aperiodical mainly @stecks' work. Glad you like it!

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson pretty much exactly my reaction

0 favourites 0 retweets

I've woken up, had a shower, got dressed and eaten my breakfast, and the baby is still asleep.

3 favourites 0 retweets

If neat, handwritten notes about graph theory are what you want, this thread delivers twitter.com/MarkSukaiti/st…

1 favourite 3 retweets

it me twitter.com/PaxsonScience/…

3 favourites 0 retweets

oh wow, gvim renders emoji!

0 favourites 0 retweets

In reply to @BarneyMT1

@BarneyMT1 Correct

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett

2 favourites 0 retweets

In reply to @SallyJordan9

@SallyJordan9 not that I've encountered!

0 favourites 0 retweets

In reply to @anniek_p

@anniek_p hey, notation is a cultural object too

2 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday yes, that's her. Never had any contact with her, but after she died I was offered her maths library. I had nowhere to keep it and no way of collecting it :(

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday @LMS @SusanMOakes sorry, I know very little about her! I have a couple of issues of the Mathematical Gazette that she had pieces in.

0 favourites 0 retweets

I *very* nearly responded when Colin called my name in the latest @WrongButUseful podcast.
#playitcoolCP

1 favourite 1 retweet

Crikey, if I'd known how much love the @NclNumbas units extension would get at #vicephec18 I would've implemented it years ago!

2 favourites 0 retweets

I missed this while my RSS reader was broken: the brilliant blog Turismo Matemático has passed 1,000 entries! mateturismo.wordpress.com/2018/08/16/y-l…
I don't know how Ángel gets about so much, but I do appreciate it!

0 favourites 0 retweets

Ohhh, that's so clever! twitter.com/arcticisleteac…

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @emfcamp That's superb!

1 favourite 0 retweets

This fits perfectly. *very* satisfying

4 favourites 0 retweets

In reply to @_james_wilsonn

@_james_wilsonn @colourblindorg I tend to awkwardly stand outside the door for half the journey or until someone comes out 🤷‍♂️

3 favourites 1 retweet

About to start a conference, realise there's no clock in the room. A quick bit of @glitch later... a-big-clock.glitch.me

21 favourites 2 retweets

In reply to @StackNewcastle

@StackNewcastle hi, what time are the eateries open until today?

0 favourites 0 retweets

Uh oh, it's #hannahssweets again! #EAMS2018

0 favourites 0 retweets

I like the idea of MeLQS, currently being presented at #EAMS2018 - a structure for describing e-assessment questions, but not automatically translating between systems

0 favourites 1 retweet

The baby has learnt to say 'dada', or rather, 'DADAAA!!!!'
Eagerly looking forward to my next quiet moment, in about twenty years' time.

19 favourites 2 retweets

In reply to @FryRsquared

@FryRsquared have you heard of the film "The Laws of Thermodynamics"? Looks like your kind of thing: youtube.com/watch?v=NXUtq-…

1 favourite 0 retweets

In reply to @aperfect

@aperfect I like this photo a lot supersonicfeet.com/photograph/ove…

0 favourites 0 retweets

September

In reply to @standupmaths

@standupmaths Like two diplodoci doing a mind meld

5 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I have a secret second life in music at work that my wife knows nothing about

2 favourites 0 retweets

In reply to @Parcly_Taxel

@Parcly_Taxel There are several every day

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A local school has put up a banner boasting "Best A Level results ever: grades improved by 10%".

👏 YOU 👏 CAN'T 👏 INCREASE 👏 CATEGORICAL 👏 DATA 👏 BY 👏 TEN 👏 PERCENT 👏

3 favourites 1 retweet

Dear web-based Outlook: I never, ever want to continue adding text to a link after a line break.

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Write the numbers 1 to N in a list.
Namer names a distance d.
Claimer claims a subset of remaining numbers such that no two are d apart.
How long does it take Claimer to claim every number?
This paper proves it's O(log log n) turns. twitter.com/MathPaper/stat…

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A notational conventions question:
It's common to write "sin(x)" as "sin x", omitting the brackets. It's not just laziness: it makes the text less busy. "log log n" is easier to parse than "log(log(n))".
Which functions is it OK to do this for? Is "f x" OK?

5 favourites 2 retweets

In reply to @ThomasEWoolley

@ThomasEWoolley @lsinfosec INQUIRING MINDS NEED TO KNOW

1 favourite 0 retweets

In reply to @apgox

@apgox So my question is, under what circumstances is there a unique correct interpretation?

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In reply to @RealityMinus3

@RealityMinus3 @icecolbeveridge @samholloway so you'd always write "h(x) = f(g(x))" and not "h = f ∘ g"?

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In reply to @Pyfagorass

@Pyfagorass I've been asking for a pay increase for years, with no success. The public sector is less responsive to such things.

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I was sure the twitter pedant brigade would be with me on this. Am I wrong? twitter.com/christianp/sta…

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@aajohannas @icecolbeveridge @ChrisMaslanka Here's an example of "sin n" in use: users.auth.gr/~siskakis/sin(…

1 favourite 1 retweet

In reply to @Parcly_Taxel

@Parcly_Taxel how does that first one show Beal's conjecture is false? Beal's conjecture is about integers, not matrices. I'd expect to see a counterexample: A,B,C coprime such that A^x+B^y=C^z

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Another day, another important committee I'm on has scheduled a meeting for a Friday, when I don't work here 🤷‍♂️

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In reply to @Parcly_Taxel

@Parcly_Taxel ah, misread your original tweet

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In reply to @icecolbeveridge

@icecolbeveridge sneak them into your local IKEA

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith and you'd travel 400 more...

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In reply to @robeastaway

@robeastaway I've long been unsatisfied with that slot, and now I've been asked to submit a puzzle for it. I possibly spent too long thinking about it. I came up with a puzzle that I like, but I'm not sure it'll work when only read out once. I'm very ambivalent about the whole thing.

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In reply to @robeastaway

@robeastaway yes. I'll DM you.

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Sumaze is brill, and available on Android as well as iOS: mei.org.uk/sumaze2 twitter.com/kevinsmithsd/s…

3 favourites 1 retweet

Little victory lap down to the chocolate shop because the thing I've spent the week working on now works.

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In reply to @christianp

I'm working on a pattern-matching syntax and algorithm for mathematical expressions. Like an analogue of regular expressions, but for trees.
I worked out the last few missing pieces while talking with someone at #eams2018 last week.

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In reply to @christianp

Ich win ein Berliner

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In reply to @peterrowlett

@peterrowlett ooh, I think I showed Joe that last year!

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Saw this lovely, if slightly knacked, adding machine in the Sun Inn, in Morpeth.

5 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Is 'Notintone' the most disastrous misspelling of Nottingham ever?

0 favourites 1 retweet

In reply to @stecks

@stecks You're too organised for your own good

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In reply to @knotunknot

@knotunknot @CoburgHouse @jcrennie1798 Ooh, I like that pattern a lot

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In reply to @rooneyvision

@rooneyvision The station that makes you ask, "am I fuel?"

1 favourite 0 retweets

In reply to @monsoon0

@monsoon0 @RobJLow @RowenaBall I was a cool dude who only carried a small backpack, until we had a baby.

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett How would you visually distinguish an engineer from a scientist or a builder?

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Now I wonder if these batch numbers are in binary

1 favourite 0 retweets

Finally, the formula for the perfect necklace, and it's not nonsense! twitter.com/theoremoftheda…

3 favourites 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam I think so

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In reply to @blatherwick_sam

@blatherwick_sam 10^2+11^2 = 221 = 13*17

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In reply to @blatherwick_sam

@blatherwick_sam It's certainly not a coincidence that 1296 = 6^4. Solution is n=3+log(2)/(log(2)+log(3)) (thanks wolfram alpha!), so maybe he meant 648 on the right hand side

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Unprecedented levels of style down at my minimum as I've inadvertently bought socks that match my shoes (according to Mrs L-P)

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In reply to @Pyfagorass

@Pyfagorass what a shouty man!

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In reply to @ncl_LTDS

@ncl_LTDS can I pop down with some Numbas stickers and leaflets?

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In reply to @ncl_LTDS

@ncl_LTDS I've left a canvas EAMS bag on your table

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In reply to @peterrowlett

@peterrowlett crikey, and I thought my 1811 textbook was completist for including firkins!

1 favourite 1 retweet

eugh, now I have to prove this algorithm is correct

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Write lots of zeros on a pad
fifty, then fifty more - and add
a 1 before them all
a 'googol' we now call
this giant number - not bad!

That's the entry for 'googol' in the Omnificent English Dictionary in English Form.
There are loads more mathsy words at oedilf.com/db/Lim.php?Wor…

0 favourites 1 retweet

In reply to @kyledevans

@kyledevans Was that from one of those print-on-demand sites, or is someone making mandelbrot shirts at scale?

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In reply to @Plattsc

@Plattsc Hah, those are brill!

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is there a thing like patreon where I do the fun things I was doing anyway for free, but you pay for the witty domain names I put them on?

1 favourite 0 retweets

In reply to @christianp

Anyway, here's what I've made today: factorisation-list.glitch.me
A never-ending list of factorisations. Turns out that you can't scroll faster than the absolutely most naive algorithm imaginable can keep up with.

15 favourites 9 retweets

@wordisx thanks for that serious answer to a frivolous question. That's quite a name for a company! I'm surprised they don't insist on alphabet-only names.

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yes.
reciprocals-list.glitch.me twitter.com/OHSMaths/statu…

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How did I not know this? The decimal expansion of 1/2017 repeats every 2016 digits!

62 favourites 23 retweets

Fortunately, I've memorised my 97 times table twitter.com/ChrisHazell72/…

2 favourites 0 retweets

In reply to @BarneyMT1

@BarneyMT1 No rule they anyone knows of: oeis.org/A006883

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths Why require 4 colours of pen? I can only distinguish two in that photo

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In reply to @sxpmaths

@sxpmaths I have protanopia (bad red cones), so basically no combination of colours works for me. I can use labelled pens, but they don't help me. All my schoolwork was in one colour. 1 in 12 boys are colourblind, so expect a couple in each class.

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In reply to @soupie66

@soupie66 @sxpmaths Why not? Because *you* try determining the grade of pencil used to draw one side of a polygon

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall @MiniGirlGeek Crikey! I've attempted many hard things in CS, but never syntax highlighting

1 favourite 0 retweets

In reply to @MiniGirlGeek

@MiniGirlGeek @InDesign @github Ohh, that's a very nice feature!

1 favourite 0 retweets

My beautiful red dualit hand mixer has died. Following a period of mourning, I am now looking covetously at v expensive hand mixers online.
In time, I might have the strength to look at the more feasibly-priced alternatives.

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@mikegibson2010 2029

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In reply to @FOTSN

@FOTSN that difficult Nth tee after the nerd identity matrix. The only one of my maths t-shirts that continues to get unimpressed blank looks *after* being talked about

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In reply to @advance_lunge

@advance_lunge is it an adding machine, or does it do something cleverer?

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In reply to @GhostMutt

@GhostMutt Oh, it's online!

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The new @numberphile video, where @jamesgrime (1) claims to be my friend, and (2) shows off somethingorotherwhatever.com/sum-of-3-palin…, is online!
youtube.com/watch?v=OKhacW…

26 favourites 8 retweets

In reply to @christianp

@numberphile @jamesgrime as a demonstration of our friendship, I will be live-tweeting the number of views of the video throughout the day.
Currently, 2958 = 2002+949+7

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In reply to @christianp

@numberphile @jamesgrime It has increased to 3213 = 3003 + 202+8 while I was typing that.
Well, I started it, so I'd better go through with it

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In reply to @christianp

@numberphile @jamesgrime 3612 = 3553 + 55 + 4 (did that one in my head!)

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In reply to @christianp

@numberphile @jamesgrime 4641 = 4004 + 636 + 1

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In reply to @unhiddenness

@unhiddenness @numberphile @jamesgrime Can you give a bit more detail?

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In reply to @unhiddenness

@unhiddenness @numberphile @jamesgrime What browser are you using, on what device?

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In reply to @unhiddenness

@unhiddenness @numberphile @jamesgrime Hm. What numbers did you try?

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In reply to @unhiddenness

@unhiddenness @numberphile @jamesgrime found it. I introduced a typo while fixing something someone else reported. Try again now.

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In reply to @christianp

Back from some real work.
Now at 8204 = 8008 + 191+5

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In reply to @christianp

Last one before I leave work: 14994 = 14941 + 44 + 9

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In reply to @mathforge

@mathforge Oh yes, good point. Thanks!

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Since being mentioned on @numberphile a load of randos have sent me friend requests on facebook. What could they want?

3 favourites 0 retweets

In reply to @FOTSN

@FOTSN will you be publishing this series of polls as a choose-your-own-adventure book?

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Just flipped Trigg's 'Mathematical Quickies" open and found this lovely puzzle.

1 favourite 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge latter

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In reply to @christianp

@icecolbeveridge otherwise you'd be obtuse not to write (ab)^2c

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In reply to @icecolbeveridge

@icecolbeveridge oh, good point. It doesn't have to be, but it really looks like it!

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In reply to @hollykrieger

@hollykrieger Is that a bit spongy to write on with the felt behind it? I had a blackboard sticker on a wall for a few years and you could really feel the texture of the paint behind it!

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In addition to the colour problems, the vertical axis is area planted as a percentage of area planted in 2004, right? Otherwise it's a massive coincidence that all four crops had 100 hectares planted in 2004, the inflection point. twitter.com/seanhargrave/s…

1 favourite 0 retweets

In reply to @aPaulTaylor

@aPaulTaylor You know, I read that line several times and I never twigged that was what it meant

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In reply to @blatherwick_sam

@blatherwick_sam What kind of error is this: in the bottom diagram, my first impression was that the square root is the size of one of the boxes.
Would only labelling the horizontal side have helped? I'm not sure, and I can't think of a clearer way of showing a square root!

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What are the circumstances that lead to amazon selling CDs of albums for half as much as they sell the MP3 download version?

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In reply to @profRoys

@profRoys 1986 also saw Chernobyl, and me. I take your point.

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77992 = 444+77377+171. Three palindromes on my dashboard!

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Now do 'subtweeting' twitter.com/GermanQuatsch/…

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In reply to @mathforge

@mathforge @BBCTwo 0.05, 0.03 and 0.02 all look the same to me

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This is the main reason I don't do pub quizzes twitter.com/mrdavidwhitley…

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And in "absurdly precise numbers suspiciously close to 100,000 / 6" news... twitter.com/qikipedia/stat…

11 favourites 3 retweets

In reply to @christianp

So, apart from my perennial gripes about @qikipedia's continuing citation-free problems with numeracy, this begs a question: what does a cheeseburger weigh six times as much as, or have six times as many calories as?

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In reply to @christianp

@Wolfram_Alpha says a cheeseburger weighs 200g or 7.1oz, which isn't six times anything, but it give 548 calories, which is close to 540 or 600. So a blue whale needs 9 or 10 million calories a day? Wikipedia says it's 1.5 million.

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In reply to @christianp

However, Wikipedia says a blue whale *sometimes* eats up to 3,600kg of krill in one day. 16667*200 is about 3,333kg, so we might be going by weight. But that's not every day!

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In reply to @christianp

Assuming krill have roughly the same caloric content as cheeseburgers (@Wolfram_Alpha doesn't know it), it looks like whales can eat 6 or 7 times their daily energy needs in one day. Wikipedia says they eat seasonally.
So that fact looks...

fishy.

😎

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In reply to @christianp

Actually, I'm not done with this yet: is 16,667 cheeseburgers more or less than I'd expect a blue whale to eat? Me to @itabn_andrew, which tells me 3,333kg is a bit more than an adult giraffe and a bit less than a shipping container. Or, excitingly, about 2500 human brains

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In reply to @christianp

And lots more comparisons besides: isthatabignumber.com/itabn/compare?…
It also tells me that 1 million calories is about 500 times a woman's recommended daily intake. So 10 million is enough for 5,000 women. That does seem like a lot!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @awconservancy I desperately want a numbat mascot for @NclNumbas

1 favourite 0 retweets

In reply to @TimandraHarknes

@TimandraHarknes @kjm2 @StatsJen @standupmaths @stecks congratulations! I remember my small part in your homework-moaning journey.

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That's really clever - this bottle of olive oil also has an expiry date for the prime minister. I wonder how they do that?

2 favourites 1 retweet

A few years ago, the BBC reported that Opeyemi Enoch had proved the Riemann hypothesis, and we (@aperiodical) immediately said "no, he hasn't" - aperiodical.com/2015/11/rieman…
Now, Sir Michael Atiyah claims he's proved it and we said "well, let's see".
Why the difference?

8 favourites 7 retweets

In reply to @christianp

@aperiodical Enoch looked like any crank: went straight to the wrong venue - BBC News, not other mathematicians - didn't publish his proof in the open, and presented it at a very scammy looking conference run by Nina Ringo, who we've encountered before.

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In reply to @christianp

@aperiodical And we'd never heard of him. The false-positive rate for "anyone on the planet" with a claimed big proof is much, much higher than for, say, professors of maths in big universities.

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In reply to @christianp

@aperiodical So for all those reasons, we were fairly sure he hadn't done it, like I can fairly confidently say you're not holding a winning lottery ticket right now.

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In reply to @christianp

@aperiodical Atiyah, on the other hand, has a Fields medal, an Abel prize, and a very long list of publications. We still think he probably hasn't proved it, based on his other recent pronouncements, but he says he's going to present his proof, so we give him the benefit of the doubt.

1 favourite 2 retweets

In reply to @NasdaqCrypto

@NasdaqCrypto @aperiodical nope. But @stecks is there in person

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical @stecks All three of whom lived to nearly 100, corroborating the statement 'if you prove the prime number theorem, you become immortal'
#HLF18

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In reply to @aperiodical

@aperiodical @stecks Todd function is a weakly analytic L^2 function of s ∈ ℂ, s≠0.
Maps the Euler equation to Euler-Hamilton.
Gives some properties of T(s).

1 favourite 0 retweets

In reply to @aa42john

@aa42john how about 3≈≈≈?

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In reply to @robeastaway

@robeastaway Determining what's true, and restricting yourself to the times that's a sensible question to ask.

5 favourites 2 retweets

Meanwhile, in other Serious Maths news, the OEIS mailing list is seeing its longest thread in years as the great minds of our age try to come up with the best pun slogan for the site, in French.
First offering was "toutes suites tout de suite", by Neil Sloane.

7 favourites 4 retweets

That Riemann hypothesis proof in full:

30 favourites 11 retweets

In reply to @christianp

By the way, credit for that absolute classic of a cartoon is due to S. Harris of sciencecartoonsplus.com/gallery/math/i…, who I hope won't mind it being copied just one more time.

4 favourites 0 retweets

In reply to @ZazzyAustin

@ZazzyAustin Good afternoon. Which one?

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Very pleased with these Numbas numbers twitter.com/NclNumbas/stat…

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Clever maths pals, how easy is it to come up with an integer-valued 5x5 matrix with a given eigenvalue?

1 favourite 0 retweets

In reply to @christianp

whoops, I mean eigenvector

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In reply to @robinhouston

@robinhouston had a specific form in mind, for the purposes of a very nerdy joke, now sorted

1 favourite 0 retweets

In reply to @lyd_w

@lyd_w The three genders

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc ooh, that's a very good ref, particularly in actually-accessible form at web.maths.unsw.edu.au/~jds/Papers/li….
I had slightly different requirements, and came up with something which I've posted at mathstodon.xyz/@christianp/10…

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In reply to @sangwinc

@sangwinc while filing that away in my bib file, I spotted abstractmath.org. Have you seen it before? What do you think of it? I like the idea but actually reading it is quite hard

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In reply to @BTNMathsJam

@BTNMathsJam @ColinTheMathmo I dunno, it does a pretty good job of showing there's variance in usage. Though their British definition of 'natural number' includes 0, which I don't think matches common use: collinsdictionary.com/dictionary/eng…

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In reply to @robinhouston

@robinhouston I'm amazed it doesn't use None!

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This backfires when you ask the speaker how to pronounce their name, they mishear you and start asking about projector connections, and then you mishear that and very nearly introduce the next speaker , who you're very glad to meet, "veejee-ay".

(May have happened to me) twitter.com/DrRichJohnston…

1 favourite 0 retweets

Let's say that was the intended effect

12 favourites 1 retweet

In reply to @RobJLow

@RobJLow @FryRsquared @aperiodical Linked in the post. That's the best look at the mathematical aspect I've seen.

3 favourites 0 retweets

In reply to @aperfect

@aperfect just used this. Let's hope it's accurate!

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I invented a puzzle for the radio that didn't get used, so of course I put it straight on my blog.
Please have a go at it! twitter.com/aperiodical/st…

3 favourites 0 retweets

In reply to @aperfect

@aperfect a new clone of Dinopark Tycoon! rockpapershotgun.com/2018/09/25/par…

1 favourite 0 retweets

I know all but one of the digits of my new debit card.
WAIT! I KNOW SOME MATHS FOR THIS!
A quick bit of Luhn algorithm later, I confirmed my hunch that the missing digit is a 2.
Phew!

2 favourites 0 retweets

In reply to @extremefriday

@extremefriday Worse: it's something nobody else can work out is wrong, so they assume it's a glimpse of genius and have it engraved on your gravestone

1 favourite 0 retweets

October

In reply to @peterrowlett

@peterrowlett @MathsJam I see we've both submitted talks about our children's toys

3 favourites 2 retweets

In reply to @monsoon0

@monsoon0 the alternative is the way that chemists name things. I think the current way is the lesser evil!

1 favourite 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths look at this! twitter.com/MathPaper/stat…

0 favourites 0 retweets

Just spotted that David H. Bailey has started posting "simple proofs of great theorems" on his blog: mathscholar.org/2018/09/simple…
This proof that π is irrational is about as straightforward as it can be: mathscholar.org/2018/09/simple…

30 favourites 13 retweets

Glaziers turned up at our house this morning with our new window. It's 10cm too wide, because somebody made a mistake converting imperial to metric.

WHY DID ANYONE USE IMPERIAL AT ANY POINT?!?!

6 favourites 1 retweet

it me I make bad joke twitter.com/aperiodical/st…

9 favourites 0 retweets

Your illuminati codewords for today

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @chalkdustmag The plot thickens!

0 favourites 0 retweets

In reply to @timstirrup

@timstirrup 🤯

0 favourites 0 retweets

In reply to @eleonorasfalcon

@eleonorasfalcon the people who make the windows use metric. You might get a round number in imperial, but they're hardly operating at sub-millimetre precision

1 favourite 0 retweets

How do you feel about lines like this:

a = b < c = d

If you're skim-reading, and the terms a,b,c,d are quite long, you might not notice the < in the middle, and think that a = d.
Is there a better way?

3 favourites 0 retweets

In reply to @nershly

@nershly it's not code. It's the kind of notation commonly used in maths

0 favourites 0 retweets

In reply to @benorlin

@benorlin let's just say I'm enormously thankful that G is only worth 2 points in Scrabble

3 favourites 0 retweets

In reply to @BTNMathsJam

@BTNMathsJam @stecks @benorlin @RobJLow furthermore, I can remember sitting at a table with him and @stecks in the bar

1 favourite 0 retweets

In reply to @FryRsquared

@FryRsquared @sophiechristoph congratulations! I supposed I'd better get myself a copy then

1 favourite 0 retweets

In reply to @stecks

@stecks @benorlin Ben's a very unassuming chap. Terrible at drawing, though.

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @Fuzzel76 it's like the 112th time for me, and it's still one of my faves (but it's normally Napoleon in my telling)

1 favourite 0 retweets

So many toy shops get this wrong: I select age 0-2 years, and they show me products designed for ages 2-3.
Those intervals should be open!

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Me too! I meant to tweet about it, and entirely forgot.

Like any paper I've ever been asked to review. twitter.com/peterrowlett/s…

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Just in case you don't know that panic attacks have a pretty much instant cure.
Best thing a doctor ever told me twitter.com/IanColdwater/s…

7 favourites 2 retweets

Graph diameter bants twitter.com/joncstone/stat…

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There must be maths in this mistake I just made: I split a poster into a 6×3 grid of A4 pages.
I made the mistake of printing double-sided. I want to salvage as much as possible. I can't make two rows, but I can do every other column.
What's the biggest contiguous area I can do?

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In reply to @christianp

I can do a "comb" -
1,4,5,7,10,11,13,16,17
or
2,3,6,8,9,12,14,15,18.
Any others?

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo where's your graph of registrations?

1 favourite 0 retweets

In reply to @Shona_Mu

@ShonaDav Every now and then my (android) phone gives me directions to where I 'parked', whether I've driven recently or not. So it may already be able to do what you want, but I have no idea how

1 favourite 0 retweets

Yesss this is the news I need news.com.au/lifestyle/home…

1 favourite 0 retweets

The PhD-by-hanging-around route is starting to catch on: the office staff are on board!
(please, nobody gatecrash these tutorials)

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo solipsys.co.uk/cgi-bin/MJ_Wik… and solipsys.co.uk/MathsJamRegist…

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I've got a conic projection of the UK hanging up at home, but I've never seen a literal conic projection onto a cone before!
Photo at the end of this post:
mateturismo.wordpress.com/2018/10/04/el-…

0 favourites 0 retweets

Planted to commemorate the shortest meeting to decide the new chair of the corporate planting committee in history

0 favourites 1 retweet

In reply to @jjsanderson

@jjsanderson Can't spell mackerel without 'maker'! (where have you moved to?)

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Ooh, back at the coast near us! Hooray!

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I've just discovered there's a horse called 'Matematica', whose mother was called 'Mathematicienne'. Not sure what to do with this information.
Any other mathematical horse names you can think of?
sportinglife.com/racing/profile…

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @samholloway sqrt(-1) often gives NaN, for example. Likewise acos(5).

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @samholloway that would be NaN

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I got 108 problems but a warning ain't one

9 favourites 1 retweet

In reply to @tessellationfan

@tessellationfan omg: Hypoteneuse has four children: "Maths Prize", "Pythagorean", "Sextant" and "Longside".

... what happened to Shortside?!

0 favourites 0 retweets

In reply to @helenarney

@helenarney yeah but when's the jongleur coming to town to deliver the chanson de geste version?

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In reply to @BarbaraFantechi

@BarbaraFantechi @profkeithdevlin @monsoon0 Compulsory education finishes at 16, so you can't really make any A Level compulsory. We do have a fair few students coming to do STEM-ish subjects without A Level maths. Core Maths (stem.org.uk/core-maths) is meant to fix that.

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In reply to @BarbaraFantechi

@BarbaraFantechi @profkeithdevlin @monsoon0 lots of data on the government's website, if you can bear to trawl through all the excel files: gov.uk/government/sta…
The "main text" and "additional text" PDFs present the data fairly reasonably

1 favourite 0 retweets

Today in "the month is not a unit of measurement" twitter.com/GreyAlien/stat…

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Currently thinking about this automaton: brindle-bass.glitch.me

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Love this! twitter.com/SteevNewman/st…

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There's either a set of bagpipes or an angle grinder a couple of streets away.

1 favourite 0 retweets

In reply to @FryRsquared

@FryRsquared @insimonated @ceekayell @ITVBe I've seen soft maths porn, and that, madame, was no soft maths porn.
vimeo.com/15492339

1 favourite 0 retweets

Which numbers are both a power of 3 and a cube?

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In reply to @GhostMutt

@GhostMutt a power of 3 is " 3 times 3 times 3 ... times 3" some number of times. A third power, or cube, is "a times a times a" for some number a.

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In reply to @christianp

Which numbers are both a power of 1/3 and a cube root?

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In reply to @j_lanier

@j_lanier @hollykrieger Cars coming from where the kid is standing can't turn left.

1 favourite 0 retweets

Does this look plausible? @itabn_andrew twitter.com/HelAdams/statu…

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In reply to @itabn_andrew

@itabn_andrew I wonder if it's something like (amount a penguin wees in a year X number of penguins X number of years penguins have existed)

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In reply to @SheckyR

@SheckyR @evelynjlamb That was my favourite site for a while. I see my top one is at number 69! gaussfacts.com/view/Mathemati…

0 favourites 0 retweets

In reply to @christianp

@FryRsquared I've just caught up with your programme. Is that guy for real?!

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I love seeing how much you enjoy being a parent

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In reply to @C_J_Smith

@C_J_Smith my one got her first proper shoes yesterday. She's so cool!

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In reply to @C_J_Smith

@C_J_Smith @njj4 I think this was your 23,000th tweet. Made it a good one!

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Hey @standupmaths, seen this? Calculator forensics: the result of arcsin(arccos(arctan(tan(cos(sin(9))))) on different makes of calculator rskey.org/~mwsebastian/m…

7 favourites 0 retweets

All in favour of renaming number theory "integerology"?

8 favourites 2 retweets

In reply to @hartkp

@hartkp what do you mean?

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In reply to @hartkp

@hartkp ok

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My daily Dudeney puzzle tooter over on mathstodon today picked this absolute whopper of a #FakeContext ratios puzzle: mathstodon.xyz/@dudeney_puzzl…

1 favourite 0 retweets

In reply to @suedepom

@suedepom someone on mathstodon commented that in Spanish it'd be 'enterología', which is even more medical-looking

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I have received an email requesting tech support written entirely in Comic Sans.

4 favourites 1 retweet

Grumpy @stecks thinks I shouldn't get any credit for making an oblique reference to top Edinburgh restaurant the Ubiquitous Chip in the first line of this post. twitter.com/aperiodical/st…

0 favourites 1 retweet

In reply to @monsoon0

@monsoon0 given how your PM turned out, that might not be worth celebrating

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Inspired by a line in a textbook about imagining people standing in circles to show set membership, I've made a @glitch simulation of people spontaneously forming a Venn diagram: spontaneous-venning.glitch.me

18 favourites 5 retweets

In reply to @yet_so_far

@sblgpln @FryRsquared I have some code that can do that...

1 favourite 0 retweets

In reply to @ProfNoodlearms

@ProfNoodlearms @MathProfBill Proof by adhesion!

1 favourite 0 retweets

In reply to @yet_so_far

@sblgpln @FryRsquared Not yet, it's part of a current project at work. I hadn't had the idea of applying it to portraits though, so next time I have some spare time I'll see if I can share something usable

2 favourites 0 retweets

In reply to @nillie_kj

@nillie_kj @aperiodical is that a real thing?

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That's a nice magic square! mateturismo.wordpress.com/2018/10/15/el-…

1 favourite 1 retweet

In reply to @DavidKButlerUoA

@DavidKButlerUoA @samjshah2 I agree entirely

1 favourite 0 retweets

Ooh, this is pleasingly geometrical. I will make every effort to visit! twitter.com/_Artimage/stat…

6 favourites 2 retweets

I like the absurdity of using the wrong date format to get the wrong value of π to celebrate the subject that has been described as 'the art of not being wrong' twitter.com/aperiodical/st…

4 favourites 2 retweets

In reply to @llaisdy

@llaisdy @sassilia12 @aperiodical 22/7 is probably a bit close to the end of the school year for a day that's supposed to be celebrated by teachers and pupils. Where I live, 22/7 is the last day of the school year this year.

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In reply to @llaisdy

@llaisdy @sassilia12 @aperiodical couldn't agree more

1 favourite 0 retweets

In reply to @miclugo

@miclugo what better day to celebrate counting?

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In reply to @miclugo

@miclugo another problem with using a mathematician's birthday is stereotype threat

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I've just finished "Inventing the Mathematician" by Sara N. Hottinger. It's about how we construct the idea of who can be a mathematician. I didn't need convincing, so I was hoping for some good ideas to counter the straight-white-male norm, which I sadly didn't find!

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In reply to @christianp

There was lots of "in the following chapter/section I will show ..." and "in the previous chapter I showed ...", which felt like it actually made the gist of the book harder to follow. My wife the sociology graduate says this is quite common, and it used to annoy her too.

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In reply to @christianp

The majority of the book is about mathematical 'subjectivity' - for those like me who don't know the way that word's used here, it's not the opposite of 'objectivity', it means "what kind of person we think about when we think about maths"

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In reply to @christianp

It's made me more aware of all the situations in which we reinforce a fairly exclusive idea of math subjectivity:

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In reply to @christianp

* textbooks mainly feature famous male mathmos, fine, we already knew that
* exercises rarely feature female/BME characters (I'm on top of that in @NclNumbas: numbas-editor.readthedocs.io/en/latest/exte…)

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In reply to @christianp

@NclNumbas * textbooks specifically aimed at girls and women help to include them as math subjects, never mind "girlification" - I *think* I already agreed with that
* for women, there's a tension between being 'feminine' and being 'mathematical', which is unnecessary

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In reply to @christianp

@NclNumbas That's made me think more about the contexts we use in exercises and examples: 'neutral' contexts are often coded more as 'male' than I had appreciated. We should more often use explicitly 'female' contexts.

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In reply to @christianp

The last couple of chapters, about mathematicians on postage stamps, and ethnomathematics, didn't do much for me. I'm not sure what the point was - just saying "lots of people see stamps, so that's an important factor shaping their impression of mathmos" would've done.

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In reply to @christianp

And I really didn't get the bit about ethnomathematics. She talks about how it's rooted in anthropology and all its colonialist baggage (no surprise), and gives a good example of a more reflective and collaborative study, but doesn't really offer ideas for how it should be done

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In reply to @christianp

Like, how *should* we incorporate maths outside the standard Western narrative in the story of maths?

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Spend a month drawing Emmy Noether!

... I'm sorry, have you got something *better* to be doing? twitter.com/aperiodical/st…

11 favourites 3 retweets

In reply to @chalkdustmag

@chalkdustmag I love maths magazines and jokes involving the numbers 7 and 9. Will I love your latest issue?

3 favourites 0 retweets

While waiting for the baby to wake up, I'm replaying Caterpillar Logic, a fun game about inductive logic.
play.google.com/store/apps/det…

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Talking of deals you should walk away from... #PeoplesVote

6 favourites 1 retweet

In reply to @Bishnavitch

@Bishnavitch Get an oven thermometer

1 favourite 0 retweets

I'm awake before my wife and baby today. I'm selfishly getting ready for work. Here's hoping she knows which end food goes in! twitter.com/manwhohasitall…

1 favourite 0 retweets

In reply to @jjaron

@jjaron Same idea as Crown Copyright?

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In reply to @monsoon0

@monsoon0 I prefer A8: looks like a snowman doing a painting

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I'm a big fan of this Dudeney puzzle: mathstodon.xyz/@dudeney_puzzl…

1 favourite 1 retweet

In reply to @christianp

it's very much in "I want to show you this cool thing I found" territory though, rather than something you'd realistically solve entirely yourself

0 favourites 0 retweets

In reply to @nazgar001

@nazgar001 @SparksMaths @OxUniMaths @CardColm @CityLdnSinfonia oh, that tweet is doing a lot of work! Well done!

1 favourite 0 retweets

I had never heard that the standard trigonometric addition formulae have a really long-winded name: the prosthaphaeresis formulas mathworld.wolfram.com/Prosthaphaeres…

1 favourite 0 retweets

In reply to @monsoon0

@monsoon0 at least 2

0 favourites 0 retweets

In reply to @ajoy_allen

@ajoy_allen @My_Metro I'm on one!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @Dragon_Dodo @Simon_Gregg @Gelada @mathhombre @chalkdustmag @mathinyourfeet @PuntMat @dandersod @DavidKButlerUoA @csarahj @CcBcnMvd @druizaguilera you nerdsniped me. Nothing like brute-forcing it: here's a page which will make all the Truchet tiles for shapes up to 16 sides: truchet-polygons.glitch.me

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In reply to @christianp

@icecolbeveridge @Dragon_Dodo @Simon_Gregg @Gelada @mathhombre @chalkdustmag @mathinyourfeet @PuntMat @dandersod @DavidKButlerUoA @csarahj @CcBcnMvd @druizaguilera looks like it's (spoilers!) this sequence: oeis.org/A054357

1 favourite 0 retweets

In reply to @Simon_Gregg

@Simon_Gregg @icecolbeveridge @DavidKButlerUoA @Dragon_Dodo @Gelada @mathhombre @chalkdustmag @mathinyourfeet @PuntMat @dandersod @csarahj @CcBcnMvd @druizaguilera I think they need to meet the edges of the polygon at right angles

2 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @icecolbeveridge They're def circular arcs. I *think* they're at right angles, would need to do some working out to show it

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In reply to @christianp

@DavidKButlerUoA @icecolbeveridge yes, of course they are: the centre of the circle lies on both lines formed by extending the edges

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I'm looking in A-Level textbooks for examples of "simplification".

On the first page of content in this EdExcel C1 book, this made me so cross: you're not applying the rule (a^m)^n=a^(mn), you first need (ab)^n=a^n b^n, but that rule isn't even listed!

1 favourite 1 retweet

In reply to @christianp

This is more what I was looking for: in the C3 book, they ask you to simplify "sin(θ)cos(θ)(sec(θ)+cosec(θ))". The answer they give is "sin(θ)+cos(θ)".
So do they mean "put it in terms of sin and cos"?
I suppose @sangwinc has written something about this. Must get his book out...

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In reply to @sangwinc

@sangwinc I just had a happy while reading your CAA book, then Carette's paper and a couple of other refs. I've come to the conclusion that I disagree with Carette, and "simplify" in the example above means "write what I'm thinking of".

1 favourite 0 retweets

In reply to @nakamura8

@nakamura8 Hi, I got it, will answer when I have time. Do you have a deadline?

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In reply to @glitch

@glitch I started a project on one PC, continued on another PC and renamed it, then resumed on the first PC without refreshing. It still used the old subdomain. Changes saved properly. When I remixed it, I got a brand new project, I assume cos the old name doesn't exist any more

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Go for it! There are no Romans around to stop you any more

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith Conversely, last week one of my tutees asked me if I'm a postgrad. I'll take it.

1 favourite 0 retweets

In reply to @edsouthall

@solvemymaths In case this was a serious question: 39. Here's my working-out: gist.github.com/christianp/2fe…
There's an absolutely unreasonable number of different ways of making them, which implies that the prices are more consistent than they might look

5 favourites 2 retweets

I've spent probably too much of my morning making my Truchet polygons tile the plane: truchet-polygon-tiling.glitch.me
@icecolbeveridge @Gelada @peterrowlett

9 favourites 2 retweets

In reply to @robinhouston

@robinhouston @icecolbeveridge @Gelada @peterrowlett yeah, I can believe that. I'll run it through babel and so on later

2 favourites 0 retweets

In reply to @Gelada

@Gelada @Simon_Gregg @DavidKButlerUoA @icecolbeveridge @peterrowlett @mathhombre oh yes, that was my next idea!

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A = 0
B = 1
C = 10
D = 11

Given a binary number, substitute letters for strings of digits, e.g. 1001 = CAB.

Can you write an algorithm to find the ShortLex minimal letter representation of any number? ShortLex: compare by length, and then alphabetically, e.g. CA<BAA, BC<DA.

1 favourite 0 retweets

In reply to @KennyEvil

@KennyEvil @TimHarford I second that, and a spooky apparition thirds it. Extremely enjoyable, and much more accessible for non-boardgamey family members than Pandemic

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Very pleased with my week's work: using the new @NclNumbas pattern-matching algorithm to add a "pattern to match" restriction on mathematical expression parts.
I've got lots of use cases, but this one is nice and simple: put fractions over a common denominator

1 favourite 1 retweet

In reply to @christianp

@NclNumbas Here's the editing interface.
The cryptic syntax will, of course, be well-documented!

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge Nice!

0 favourites 0 retweets

In reply to @JSEllenberg

@JSEllenberg That's a beautiful phrase

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl @Suibeom Fundamental Gotcha of topology: a set can be both closed and open

6 favourites 0 retweets

I've done a bit more work on my Truchet polygons thing, and moved it over to my own site: somethingorotherwhatever.com/truchet-polygo…

0 favourites 0 retweets

Inspired by an article in @chalkdustmag, I wrote code to generate Truchet tiles for any even number of sides. Then I looked up which tilings of even-sided polygons exist, and here we are: somethingorotherwhatever.com/truchet-polygo…

687 favourites 177 retweets

In reply to @mathforge

@mathforge @chalkdustmag Yes, replaces with another one of the same shape

1 favourite 0 retweets

In reply to @graveolens

@graveolens @Sabetta_ @chalkdustmag 🤷‍♂️

1 favourite 0 retweets

In reply to @jongerlach

@jongerlach @chalkdustmag You need every polygon to have an even number of sides. Other than that, nothing stopping you

0 favourites 0 retweets

In reply to @joshmillard

@joshmillard @jongerlach @HoeflerCo Ooh, where's your version?

0 favourites 0 retweets

In reply to @joshmillard

@joshmillard @jongerlach @HoeflerCo That partitions paper is a good one! I now have a feeling I may have seen this on Mastodon, where I already follow you.

1 favourite 0 retweets

We all know that the moon only comes out at night. But when the clocks change, you can catch it out.

6 favourites 1 retweet

In reply to @mik3caprio

@mik3caprio Yep: github.com/christianp/tru…

1 favourite 0 retweets

What a treat! Over the weekend I received an unexpected email from a fan, containing proofs of the Riemann hypothesis, Fermat's last theorem, the Beal conjecture *and* the abc conjecture!
Furthermore, they're all proved by the one proof!
#blessed

14 favourites 0 retweets

Not sure if the straight edges are the Sun's mockups or if the idiots are even in charge of the mint now. twitter.com/nicktolhurst/s…

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @TheSun hah, jinx!

0 favourites 0 retweets

If I ask you to "decompose a fraction into partial fractions", what should you do?

Warning: I'm looking for edge cases and loopholes.

3 favourites 0 retweets

From an email about thefts on campus: "the perpetrators have started dressing to blend in."

Code for: "the perpetrators are charvers"

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @Adobe what sad course of events has led to you interacting with Adobe Captivate?

1 favourite 0 retweets

In reply to @CardColm

@CardColm @wolframalphacom If you have the time to learn the syntax, @cocalc_com will tell you, through either GAP or sage

5 favourites 1 retweet

In reply to @sangwinc

@sangwinc I'll just say this: it involves a novel interpretation of the equality symbol

0 favourites 0 retweets

November

In reply to @monsoon0

@monsoon0 @DavidKButlerUoA But if x=-3, you're in luck!

2 favourites 0 retweets

#noethember day 1.
I'm starting exactly as shoddily as I intend to continue

15 favourites 1 retweet

In reply to @BarbaraFantechi

@BarbaraFantechi @MathsBooks yes, poor oversight on my part, having seen recently just how much hair newborn babies can have!

2 favourites 0 retweets

In reply to @stecks

@stecks sounds like you just gave yourself a job

2 favourites 0 retweets

In reply to @soupie66

@soupie66 @tessellationfan your dedication to scanning the Racing Post for mathematical horseys is commendable

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w, you might find #noethember interesting

2 favourites 0 retweets

In reply to @tessellationfan

@tessellationfan @soupie66 I sense a game of "greyhound, horse, or mathematician?" coming up

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Have just asked @stecks if there are any admin jobs she needs me to do, and she can't think of any.
Opportunity: WASTED

0 favourites 0 retweets

In reply to @EsotericCodes

@EsotericCodes @rottytooth Either!

1 favourite 0 retweets

In reply to @0rganics

@0rganics @FOTSN I've got no. 181

1 favourite 0 retweets

In reply to @FOTSN

@FOTSN @peterrowlett @0rganics @aperiodical @stecks @Limax7 @DrLucyRogers @edent excellent capitalism, guys. That's three free DVDs for one review!

0 favourites 0 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi @theoremoftheday @StA_Maths_Stats It's taught as Bézout's identity here in Newcastle too. May be a British thing?

2 favourites 1 retweet

Ready for a day of responsible geometry, thanks to @FOTSN.
They sent me this t-shirt to review, so I can confirm it is topologically isomorphic to other t-shirts I've enjoyed, and the message it bears remains compelling after application to my dad bod

9 favourites 4 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA after shuffling the deck, prob that the top card is red, and prob that the bottom card is red

0 favourites 0 retweets

In reply to @christianp

@FOTSN I've just spotted tiny Einstein lurking over my shoulder. I feel like there should be an evil physicist on the other one.

3 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA yeah. But it feels slightly different in some way, doesn't it?

1 favourite 0 retweets

#noethember day 5. Mathematical Noethers in age order.
Turns out when I looked at Fritz's photo all I thought was "big face"

14 favourites 2 retweets

It's turning out to be one of those days where you have to look at an RFC

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Outlook logic: write half a line of text, then paste from the clipboard. Notice text has formatting, so press ctrl+z to undo.
The text I'd written before disappeared, and the pasted text remained.

... whaaaaaaaaaaaaatttt?

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson because of a difference in gravity?

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University: *spends ungodly amount on SAP*

HR department: everything we do happens inside Excel files that we pretend are forms

2 favourites 2 retweets

In reply to @CmonMattTHINK

@CmonMattTHINK @Desmos ooh, that's really cool!

1 favourite 0 retweets

In reply to @apgox

@apgox @ajk_44 That is a solid dad joke, well done

1 favourite 0 retweets

Welp, my work PC won't start and nobody else is due in for 45 minutes, so I suppose I'll just crack open some puzzle books

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if I'd got a mathematical object named after me before I double-barrelled my surname, maths would've become a little bit more case-sensitive than before ("Perfect doodad" ≠ "perfect doodad")

Are there any objects named after similarly surnamed people? Like, a Normal subgroup?

8 favourites 0 retweets

I like this one twitter.com/BTNMathsJam/st…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I'm looking for names that are also adjectives used to describe mathematical properties. As far as I know, none of those are

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths that's the exact page that sparked that thought. The 'Herschel' makes it an imperfect example

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths PS when we're at big mathsjam I want to talk to you about books

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician @standupmaths bums. In January then.

0 favourites 0 retweets

TIL that 0 is a valid order number at McDonald's. I thought they'd skip it to avoid the wrath of the 'counting numbers start at 1' crowd

4 favourites 0 retweets

In reply to @aa42john

@aa42john Is that a thing?

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Ding ding ding! We have a winner, if you're bilingual. It's 'Kleinsche', not just 'Klein', in German though, isn't it? twitter.com/aa42john/statu…

4 favourites 0 retweets

In reply to @TimonGutleb

@TimonGutleb There are probably other things named after Klein that are masculine though?

1 favourite 0 retweets

In reply to @TimonGutleb

@TimonGutleb Yes, I get that.

1 favourite 0 retweets

In reply to @Groteskerie

@Groteskerie @TimonGutleb again, I know how that works

0 favourites 0 retweets

In reply to @drtjwalton

@drtjwalton is 'moody' a property an algebra can have?

0 favourites 0 retweets

In reply to @drtjwalton

@drtjwalton that's a case of the adjective following the name

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @AlanTuringYear @UniofBath @MathsatBath @ConversationUK @MailOnline @guardianscience @Telegraph apart from anything else, I'd greatly look forward to buying a cake from those bigoted NI bakers with a big gay fifty

1 favourite 1 retweet

In reply to @drtjwalton

@drtjwalton no prob, I don't think I was particularly clear

0 favourites 0 retweets

In reply to @extremefriday

@extremefriday don't tell him about Doron Zeilberger

4 favourites 0 retweets

In reply to @NewcastleCC

@NewcastleCC Is that sentence worded the right way? So 61% are less likely to experience anxiety or depression?

1 favourite 0 retweets

In reply to @BeingHumanFest

@BeingHumanFest @EngageNCL @nuhri_ncl @UniofNewcastle I saw one at Monkseaton yesterday. Do you really want photos of your adverts?

1 favourite 0 retweets

#noethember day 8

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The inequality relations have the property that x<y iff y>x.
The relation '>' has an opposite, '<', which works the other way round.

Are there any other pairs of operators which work this way?

1 favourite 0 retweets

In reply to @Aoife_Hunt

@Aoife_Hunt where is this magical place?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge no, just the usual Riemann ones

0 favourites 0 retweets

In reply to @CmonMattTHINK

@CmonMattTHINK No

0 favourites 0 retweets

In reply to @christianp

@CmonMattTHINK Oh, you said congruent!

0 favourites 0 retweets

In reply to @christianp

@CmonMattTHINK The answer's no in general anyway, I think: if DEF is a translation of ABC, all three distances will be the length of the translation.

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My lovely Nexus 5x phone is cracked even more than it was before. I have no idea what's a comparable phone these days. Are the days of reasonably-priced good phones over?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb My mum told me it would make me blind

2 favourites 0 retweets

All in favour of renaming elbows 'woulders' and wrists 'coulders'?

3 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Shoulders

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA youtu.be/B3KBiJupqOo

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Could this be a thing: lottery arbitrage, exploiting the difference between expected return and maximum reward.

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In reply to @christianp

Someone who was going to spend £5/week on the lottery instead gives that to me. I don't buy lottery tickets, but occasionally they 'win' a prize, with expected value greater than the real lottery. I make sure I stay in profit. Win/win, right?

1 favourite 0 retweets

In reply to @christianp

Alternately, I offer a bigger amount of money than the real lottery, just less likely. Caters to people who play the lottery for the possibility of winning big, not the expected return.

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In reply to @aperfect

@aperfect yep

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In reply to @aperfect

@aperfect I think the 'lying to the person who thinks they're buying tickets' part is novel, though

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My dad have the tiny one a 'tablet' which is actually some kind of slate - pressure makes marks appear, and the 'bin' button clears it with some kind of electrostatic thing?
Don't trust little L-P not to eat it, but it's good for maths working-out!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I regret throwing the box away! Will ask my dad. I fancy getting some to go in my fun maths box at work

0 favourites 0 retweets

In reply to @christianp

@peterrowlett actually, just put "LCD tablet" in amazon and got this: amazon.co.uk/dp/B073XC1ZV6/…

2 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett you can erase everything or nothing on this, so not quite as good as chalk

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In reply to @peterrowlett

@peterrowlett yeah, I reckon P will enjoy this in a year or two. For now, the pen gives me the horrors as a choking hazard

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In reply to @michaeljgrove

@michaeljgrove @peterrowlett someone on Mastodon said he had one of those, and it's got a digitiser in for transferring images out, although not very good quality. Mine is much more basic

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In reply to @RobJLow

@RobJLow I had one of those, but this isn't it. I suspect a similar principle is at play though

1 favourite 0 retweets

In reply to @DavidB52s

@DavidB52s @robeastaway and the follow-up probability puzzle, "one of David's answers is correct; what's the probability of picking the correct answer at random?" also submits to your method

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway Have you answered the same question for the case when bags come in triples, quadruples, or n-tuples?

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In reply to @robeastaway

@robeastaway I have a solution that is too beautiful for twitter

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In reply to @DavidB52s

@DavidB52s @AJMagicMessage @robeastaway I assumed each conjoined set (i.e., a double or a single) is equally likely. Gives a different answer!

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In reply to @michaeljgrove

@michaeljgrove @peterrowlett a photo works pretty well. Apparently the boogieboard app just takes a photo, too

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In reply to @nhealey

@nhealey @robeastaway my daughter has developed a hobby of 'helping' her grandmas make tea, so it's been on my mind lately too

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I've just spotted this question in an Edexcel GCSE maths paper (1MA1/3H from June 2017).
If the table showed 'penis length' v 'number of men', what would your first thought be?

6 favourites 2 retweets

In reply to @christianp

oh, and the range of lengths is between, let's say 5 and 7 inches

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In reply to @christianp

elsewhere in the paper:
* 'Daniel' bakes 420 cakes.
* We compare the amount spent on holiday by males and females, and decide if 'Chris' is correct to say "female students spend more money than the male students"
* 'Naoby' invests £6000
* 'Jeff' is choosing plants for his garden

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In reply to @christianp

* 'Jake' makes an incorrect assumption about measuring the length of a train track

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Years after impishly proposing a 'unary division' operator at big #mathsjam, I find myself actually needing to introduce one in my real work.

2 favourites 0 retweets

Here's an untrue statement:
An even three-digit number is divisible by 6.
What's the best statement like this that *is* true?

7 favourites 3 retweets

In reply to @robeastaway

@robeastaway No. Were you of the 'each bag has an equal chance of being' picked school, or 'each n-tuple has an equal chance'?

0 favourites 0 retweets

In reply to @DannyKodicek

@DannyKodicek @ChrisMaslanka Just so.

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In reply to @knightofmaths

@knightofmaths @ChrisMaslanka It's subjective, clearly. I'd interpret it as something like 'most satisfying'

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I like this one twitter.com/Ayliean/status…

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In reply to @WoollyBenguin

@WoollyBenguin @robeastaway I plotted all states the tin (box? What was it?) can be in, like '3 3s, a 2 and a 1', and counted the number of times each n-tuple occurred

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In reply to @christianp

@robeastaway Oh wait, that is what I got! Doh!

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In reply to @BeingHumanFest

@BeingHumanFest @EngageNCL @nuhri_ncl @UniofNewcastle Here you go, almost a week later. Your advert in Monkseaton metro station

4 favourites 2 retweets

In reply to @stecks

@stecks "A number whose digits are all 1 can only be prime if the number of digits is prime" is decent, yes

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Puzzle-ino (the smallest measurable quantity of puzzlement):

Raab
Abbott
McCabe
Cruddas
Freeman
Coffey
Rees-Mogg

Allan
Cummins
Benn
Blackman-Woods
Heappey

Barron
Amess
Abbott

Antoniazzi

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Thanks to #noethember I've just discovered @minouette and her brillo prints. They're for sale at etsy.com/shop/minouette and my Christmas list just got bigger

3 favourites 0 retweets

In reply to @christianp

@minouette I mean, just look at this gurning Turing (Guring?) etsy.com/uk/listing/105…

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In reply to @christianp

@minouette brb filing the necessary paperwork so my name starts with a K and I can use this koala monogram etsy.com/uk/listing/164…

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I would like it if there was a 'member of' symbol which doesn't need to name the element in question.
That is, something like x ∈ ℝ but without the 'x'.

Something like '∈ℝ' would be confusing. Maybe above the set instead?

What symbols other than ∈ could I use?

2 favourites 1 retweet

In reply to @pippinsboss

@pippinsboss better because it's fewer digits?

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In reply to @SaucySigma

@SaucySigma For things like:
(∈ℝ)^2 >= 0,
∈ℝ + ∈ℝ ∈ ℝ (hence why I want the symbol above the set's name, not to its left)
But the thing I'm thinking about at the moment is pattern matching, where I want to write something like x^(∈ℤ) or x^(∈ℚ) for integer or rational powers of x

1 favourite 0 retweets

In reply to @christianp

@SaucySigma so basically statements of the form "f(x,y,z) where x,y,z ∈ ℝ" would be replaced with "f(∈ℝ,∈ℝ,∈ℝ)"

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett it was designed by Tom Flemons, who speaks a lot of tensegrity woo: intensiondesigns.ca

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In reply to @christianp

@peterrowlett the convex hull is an icosahedron.

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We're about to observe for the first time the Planck tory: the smallest measurable unit of matter that can govern a country

3 favourites 0 retweets

From Esther Mcvey's resignation letter:
"With employment over 3.3 million more than in 2010 we have helped 1,000 more people into work each and every day since we took office."
It's possible for that to be true and an individual's likelihood of being in work to go down

1 favourite 0 retweets

It's not a good day when you encounter an integer sequence with such a long OEIS entry: oeis.org/A001147

2 favourites 0 retweets

In reply to @ptwiddle

@ptwiddle In this case, I got lucky and the interpretation I was looking for was near the top of the entry. I wasn't looking forward to reading the whole thing!

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They're pretty hard not to notice, in my case! twitter.com/utafrith/statu…

1 favourite 0 retweets

In reply to @mathsjem

@mathsjem It wasn't me, but I now wish it was. I'm a big fan of discretionary trophy engraving

5 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @Samuel_Hansen I haven't set off yet, and I'm planning on taking a *very* circuitous route

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#BigMathsJam attendees, you're in for a treat: my electric razor just ran out of battery halfway through a shave

8 favourites 0 retweets

In reply to @nomad_penguin

@nomad_penguin @ajk_44 I'll do a video or something

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I've put the SCAD and STL files for my generalised 3d-printable Truchet tiles on thingiverse: thingiverse.com/thing:3223544
#BigMathsJam

2 favourites 0 retweets

In reply to @morethanadodo

@morethanadodo where did you get the statement that 3% of ice in antarctic glaciers is made of penguin urine? twitter.com/HelAdams/statu…

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#BigMathsJam I legitimately love Numberblocks!

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I forgot to tweet my #noethember day 17, drawn during @Samuel_Hansen's podcastravaganza at #BigMathsJam

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#noethember day 18 is this counterfeit note, which is the prize for my #BigMathsJam competition competition competition

15 favourites 1 retweet

Who else caught a cold at #BigMathsJam?

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In case anyone's interested, here's the working-out for my lowest-entry-not-in-an-arithmetic-sequence-with-two-other-entries #BigMathsJam competition: gist.github.com/christianp/18d…

2 favourites 0 retweets

In reply to @redmanwinoshoes

@redmanwinoshoes @peterrowlett and if you haven't watched the zero episode yet, make sure you're in a good mood before you do

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @njj4 ooh yes, and consider that worthy of receiving an aperiodical magnet

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In reply to @peterrowlett

@peterrowlett you have a gas oven?!

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In reply to @peterrowlett

@peterrowlett I can't remember the last time I saw one

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In reply to @nomad_penguin

@nomad_penguin @ajk_44 here you go aperiodical.com/2018/11/zecken…

1 favourite 0 retweets

In reply to @stecks

@stecks @ColinTheMathmo That reminds me, I have video of that with just Colin and Tiago in shot. Want to see it?

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In reply to @JimPropp

@JimPropp Yes, @peterrowlett did in 2011 nature.com/articles/47516…

6 favourites 2 retweets

This tweet is cursed. Three of the four horsemen of the closed-source programming apocalypse. twitter.com/peterrowlett/s…

9 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett Mathematica?

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In reply to @peterrowlett

@peterrowlett actually yes, Maple is more cursed than Mathematica

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This thought occurred to me in the shower this morning: in a knights and knaves puzzle, where knights always tell the truth and knaves always lie, what is a knave's inner monologue like?

2 favourites 1 retweet

I like my pecorino how I like my women

2 favourites 0 retweets

In reply to @theclairodactyl

@legolasismine I think there's a case for sanitising hand gels near the cake competition

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I've just discovered this video by Welch Labs which accompanies bold use of graphics with some iffy maths history
youtu.be/T647CGsuOVU

1 favourite 1 retweet

Pretty miffed I wasted valuable dream time last night planning a lesson about symmetry.

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Unexpected zero-failing-tests situation this early in the morning. Feel like doing a victory lap.

0 favourites 0 retweets

In reply to @ireaderinokun

@ireaderinokun there's a space that shouldn't be there in ". bashrc", just under "how to create an alias"

3 favourites 0 retweets

In reply to @pkrautz

@pkrautz yeah, it ran out of space. The 'public' folder is enormous, but the command to remove remote media doesn't remove anything, so I'm trying to work out what's gone wrong

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Because of poor choices I have made in my life, today I am using node.js.

WHY DOESN'T IT HAVE A STANDARD LIBRARY

1 favourite 0 retweets

In reply to @MathYourLife

@MathYourLife yeah, seen that. Nothing about the node ecosystem makes sense

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In reply to @DaveGorman

@DaveGorman Maybe @aperfect knows?

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In reply to @blatherwick_sam

@blatherwick_sam Rounding up gives you a bigger number, we want a big number, so choose the biggest number that rounds up to 60.

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In reply to @Sabetta_

@Sabetta_ @kvdspek Ooh, what's the title of that article?

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In reply to @Andrew_Taylor

@Andrew_Taylor it's like vedic maths and trachtenberg arithmetic had an even less impressive baby

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You can get a rough idea of if this is fair by modelling it:
Suppose Bercow picked order of questions at random. About 1 in 6 questions on the 26th were supportive. A geometric distribution gives the expected number of non-supportive questions before a supportive one (1/) twitter.com/MattChorley/st…

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In reply to @christianp

Probability of success, p = 1/6. The expected number of failures before a success is (1-p)/p = 5. So 31 questions before a supportive MP was called suggests that Bercow wasn't picking questions at random. (2/2)

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In reply to @christianp

Picking at random isn't a good way of doing things, as a speaker. I know next to nothing about parliamentary procedure, but I assume he'd use some judgement to pick questions so as to ensure the range of opinions is heard. There might be lots of competing non-supportive views

1 favourite 0 retweets

In reply to @RachelandDesign

@RachelandDesign I've heard that one of the attendees even does something disgustingly practical with radar

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current status: lexicographic parity check matrix hell

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Send help

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FINALLY! t.co/7AohHA0kIZ

3 favourites 0 retweets

In reply to @Coni777

@Coni777 That's a superb final drawing

3 favourites 0 retweets

December

In reply to @honeypisquared

@honeypisquared Sweet Straker Straightedge!

3 favourites 0 retweets

😭 twitter.com/DameLEGOVC/sta…

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Colleague's email auto-reply says "I have no internet at home". True fact, or blunt way of saying "don't expect anything from me at the weekend"?

1 favourite 0 retweets

In reply to @lyd_w

@lyd_w

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I'm going to Amsterdam next week, so a quick check of the Zwarte Piet situation...

Dutch people still inexplicably happy to black up: dutchnews.nl/news/2018/12/h…

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Video player uses arrow keys to jump back and forth: 👍
... in increments of one minute: 😭

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Looking for family calendars - ones with a column for each family member - on amazon. So many of them are called things like "Mum's family calendar"!
Literally the one feature they have beyond listing days is that they're for the whole family! Grr

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I'm bringing zenzi back

5 favourites 1 retweet

You can just about make Möbius paper chains with a post-it note, if you cut it into very thin slices. @aperiodical

9 favourites 2 retweets

This feels like terrible communication of risk to me:
"Most adults living unhealthy lifestyle"
bbc.co.uk/news/health-46…
"The data from the Health Survey for England showed nearly nine in 10 had at least one unhealthy trait."

How unhealthy is unhealthy?

4 favourites 3 retweets

In reply to @christianp

Smoking and drinking too much are some of the traits, as you'd expect, but so are "don't eat 5 fruit or veg a day" and "low rates of physical activity", which are in a completely different league of risk.

1 favourite 1 retweet

In reply to @christianp

No link to more information, of course, because this is BBC News, and the "related internet links" seem to have been picked by a robot: a link to a random GP practice, the YMCA, and a community garden. No explanation of how those are relevant.

1 favourite 1 retweet

In reply to @christianp

I've tracked down the summary of the HSE report; it's at files.digital.nhs.uk/5B/B1297D/HSE%…
As I expected, 71% of adults don't eat five portions of fruit and veg a day. Half of those have one or more other risk factors. Not convinced this categorisation is helpful

1 favourite 1 retweet

In reply to @christianp

Oh, that's not necessarily true - 36% of people have only one risk factor, which I incorrectly assumed was always not enough fruit and veg.

1 favourite 0 retweets

In reply to @pennylongstckng

@pennylongstckng @aperiodical they haven't even stayed stuck together on my desk, so using them as a garland might be asking a bit much of them

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. @wacnt least populated timezone

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An interesting Dudeney puzzle today over on Mathstodon: mathstodon.xyz/@dudeney_puzzl…

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Just passed 1024 unit tests on my development branch of @NclNumbas. That's 126 more than the current released code.
Let's just say I'm being very careful not to break anything.

0 favourites 0 retweets

In reply to @colourblindorg

@colourblindorg I have protanopia and I *think* I can read everything on that sign. What's missing?

0 favourites 0 retweets

In reply to @colourblindorg

@colourblindorg They look pretty identical to me, so I don't know what I'm missing!

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In reply to @JimPropp

@JimPropp Because explaining it in words of four letters or fewer has been done

3 favourites 0 retweets

Keeping the @mathsinthecity dream alive twitter.com/mathcitymap/st…

1 favourite 0 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi I have enjoyed that wifi several times. Makes you feel welcome!

0 favourites 0 retweets

If you're struggling to find a present for me this Christmas, hurry down to the Crowne Plaza in Amsterdam where this levitating dodecahedron is a snip at €249

20 favourites 5 retweets

On the eve of the stupid brexit vote, I remember a line of reasoning I first heard @peterrowlett use: "something must be done; this is something; so let's do this".

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Seriously considering making one of these for myself twitter.com/christianp/sta…

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Plaque reads "In memory of the sticklebricks lost in the great construction toy war"

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I'm at a conference where a company is presenting a product with "open" content.
Very generous, but the content is mainly "adapted" from CC-BY licensed material from openstax.org, but they've put a CC-BY-NC-SA licence on it. Is that allowed?

0 favourites 0 retweets

In reply to @christianp

Since the value the company is adding seems to consist of the automatic marking and LMS interoperability software, which isn't open, what have they added that allows them to put a different licence on the material?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @stecks @SHUMaths My long-term plan to have @aperiodical made entirely in the North-East has moved one compass direction closer to completion!

3 favourites 0 retweets

Me, earlier: I've got a couple of spare hours in Amsterdam, so I'll do a spot of shopping and enjoy seeing the city.

The news channel on the TV in my hotel room: watch this absolute car crash.

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This pad of paper only has 9 sheets. What's the minimum viable 'pad of paper' in new condition?

1 favourite 0 retweets

In reply to @ChrisMaslanka

@ChrisMaslanka Yes cardboard backing; spent longer writing that message than counting the pages

1 favourite 0 retweets

In reply to @CmonMattTHINK

@CmonMattTHINK I had a very interesting chat with David Roberts a while ago, about his work looking at making models of maths where different kinds of continuum hypotheses are true: aperiodical.com/2017/06/the-cu…

2 favourites 0 retweets

In reply to @CmonMattTHINK

@CmonMattTHINK @mathyawp I did?!

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In reply to @CmonMattTHINK

@CmonMattTHINK @mathyawp Ah!

0 favourites 0 retweets

In reply to @ch_nira

@ch_nira @icecolbeveridge I hereby promote you to The Most Interesting Conceivable Mathematician

1 favourite 0 retweets

Today, in JavaScript is tonnes of fun and can be relied on when used carefully: I put a closing bracket in drastically the wrong place yonks ago, and it didn't cause so much as a syntax error. Just caught it while reusing that line of code.
github.com/numbas/Numbas/…

0 favourites 1 retweet

Have just been notified I have 1.5GB of my data allowance left, and it renews tomorrow.
I also have 5 hours until my flight...

0 favourites 0 retweets

In reply to @RobJLow

@RobJLow Challenge noted, let's say

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor Curl that cable up a few more times and see if you can levitate some paperclips above it

2 favourites 1 retweet

In reply to @benjamin_leis

@benjamin_leis this puzzle might be relevant: aperiodical.com/2018/09/a-puzz…

1 favourite 0 retweets

In reply to @BarneyMT1

@BarneyMT1 @SparksMaths The answer is to print them at a load of different sizes and see what looks good together

1 favourite 0 retweets

In reply to @pimbellinga

@pimbellinga hi Pim, I never got round to showing you the other project on making a specification for maths questions. It's called MeLQS; here's the talk from our @EAMSConf this year: eams.ncl.ac.uk/sessions/light…

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Includes my 'spontaneous Venning' toy: spontaneous-venning.glitch.me twitter.com/glitch/status/…

2 favourites 0 retweets

🤨 twitter.com/My_Metro/statu…

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In reply to @christianp

For those who haven't been to Whitley Bay: imagine a fairly mediocre high street, but without many big chains. That's Whitley Bay.

1 favourite 0 retweets

Look and say: 2444666668888888

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In reply to @christianp

13388888

2 favourites 0 retweets

In reply to @robinhouston

@robinhouston That's fascinating. I want to have a good think about it before I read the PDF. My first guess is its doing something like encoding the statement "x is prime"

4 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge Be still my heart!

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical I promise I didn't look at the post queue before putting this jumper on this morning

3 favourites 0 retweets

The maths of Dobble, which if you know me you probably already know, but also some history twitter.com/LinRod/status/…

5 favourites 0 retweets

Help help my cracker hat has the wrong genus

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge was it this? youtube.com/watch?v=Myaj1H…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Your hardest challenge yet!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I think my wifi just died for a bit, but I thought it looked funny

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I have yet to meet another person whose enjoyment of that song is even on the same side of zero as mine

0 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight where does he stand on tabs v spaces?

2 favourites 0 retweets

Currently converting postscript macros that I didn't write, with no comments, to HTML5 canvas routines.
It might be easier to just reimplement postscript...

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician @aperiodical very good point. Good maths stock imagery is hard to find. One day I'd like to get together people and money to make a bank of good maths stock images

0 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths @MEIMaths the first two questions that occurred to me were: how deep in thr ground will that cube sink, and what will the temperature in the middle be?

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I write Electric Light Orchestra. What are we talking about?

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge As with anyone, write it how he writes it

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Tangram shark do doo do doo do do

9 favourites 0 retweets

In reply to @mscroggs

@mscroggs I'm still assuming I'll have time to blitz the lot on Christmas Eve

2 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I follow you for homology and homology alone. Don't start branching out

1 favourite 1 retweet

In reply to @matheknitician

@matheknitician Not in the next few days, that's for sure

1 favourite 0 retweets

In reply to @samholloway

@samholloway It is my longheld opinion that the metro centre consists of a non-euclidean pocket dimension

0 favourites 0 retweets

In reply to @COOLIO_FEAT_LV

@COOLIO_FEAT_LV Stop hanging out at the warhammer shop

0 favourites 0 retweets

In reply to @GhostMutt

@GhostMutt Tell me how!

0 favourites 0 retweets

I THREW AWAY THE POTATO WATER!!!! 🤬

1 favourite 0 retweets

In reply to @FryRsquared

@FryRsquared I'm concerned someone is going to make a fence post error. Does the schedule finish at 3 or 3.15?

0 favourites 0 retweets

These are exquisite and 100% my jam twitter.com/samira_mian/st…

7 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I sort of want those as a poster

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Pirate Pete has walked the plank!

1 favourite 0 retweets

In reply to @walkingrandomly

@walkingrandomly I'd put an SSD above a faster processor or fancy display

1 favourite 0 retweets

There's got to be a joke involving the ffi ligature and the words 'puffin' and 'pun'.

23 favourites 2 retweets

In reply to @christianp

If there was, for example, a pub with this sign, that'd work, right?
@FakeUnicode

4 favourites 0 retweets

2019

January

In reply to @GreyAlien

@GreyAlien As a geordie, the thought of not having multiple Greggses within walking distance unsettles me

1 favourite 0 retweets

Some #thirdsday reading: Division By Three
arxiv.org/abs/math/06057…
"We prove without appeal to the Axiom of Choice that for any sets A and B, if there is a one-to-one correspondence between 3xA and 3xB then there is a one-to-one correspondence between A and B."

8 favourites 2 retweets

In reply to @christianp

And I feel this is also in the spirit of #thirdsday: What to do When the Trisector Comes, by Underwood Dudley
web.mst.edu/~lmhall/WhatTo…

4 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @samholloway You can set a header using a .htaccess file. See something like htaccessbook.com/add-custom-hea…
I'm not sure that'll help though. I don't think chrome has had an rss viewer for yonks

0 favourites 0 retweets

Was feeling a bit down about my endeavours, and then I see that someone has posted my Interesting Esoterica collection to @mefiblue: metafilter.com/178580/Orange-…

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In reply to @Pecnut

@Pecnut Doubletree

2 favourites 0 retweets

In reply to @christianp

@mefiblue oh, and @ColinTheMathmo too on the same day: metafilter.com/178577/it-help…. MeFi was having a maths day, I suppose

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett I have had the same password for 14 years. I'm so glad newcastle's IT have got their heads screwed on

0 favourites 0 retweets

In reply to @stecks

@stecks @Kit_Yates_Maths @VANS_66 @SparksMaths @MathsatBath @robeastaway @MathsWorldUK @MathsJam @MoMath1 @nrichmaths @plusmathsorg They used to have a warehouse under the redheugh bridge in Newcastle. Can't remember their name though!

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This story is currently at the top of BBC News, next to the serious issues of the day: bbc.co.uk/news/av/world-…
I guess it's up there because the clickbaity headline got it lots of clicks.
Demonstrates really poor maths literacy among the editors.

3 favourites 2 retweets

In reply to @christianp

I don't want to pooh-pooh that boy: he's quick at doing sums, which is a fun skill to have.
But the reporter picks big numbers with lots of zeros on the end. Tonnes of 10 year olds would be able to do the sums shown.

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In reply to @christianp

So the video demonstrates the reporter's poor number sense, and then who knows how many layers of editors who either didn't know or didn't care whether there was anything worthwhile in the report at all. Would they run a "boy finds rare animal" video showing a kid with a rabbit?

0 favourites 0 retweets

In reply to @christianp

Or gobsmacked reaction shots as a child recites "she sells seashells by the seashore"?

1 favourite 0 retweets

In reply to @christianp

The kid can probably do lots more (I hope so!)
The reporter couldn't ask the right questions.

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Sir Humphry Davy
Abominated gravy
He had to live with the odium
Of having discovered sodium

#clerihew twitter.com/royalsociety/s…

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @poveryant read.somethingorotherwhatever.com/entry/CajoriNo…

0 favourites 0 retweets

In reply to @jjaron

@jjaron could Germany be low because it's more common for a parent to stay at home, and that hasn't been accounted for?

0 favourites 0 retweets

In reply to @jjaron

@jjaron If one parent stays at home and doesn't get paid, net income is lower, but childcare costs are zero, so childcare as a % of net income is zero.

1 favourite 0 retweets

Holy prime producing patterns, batman!
Simon Plouffe has found a formula which produces 50 prime numbers in a row:

a(0) = 10^500 + 961
a(n+1) = a(n)^(101/100)

⌊aₙ⌋ is a prime number for the first 50 n!

Paper on the arXiv: arxiv.org/abs/1901.01849

32 favourites 18 retweets

Just automatically tested all ~1500 questions in our private @NclNumbas editor against the new version. It works!
(Well, I found several bugs and fixed them and *now* it works)

0 favourites 1 retweet

In reply to @profRoys

@profRoys @KateHoeyMP @UKLabour and I don't expect those protections to last long once we're out and there's nobody left to hold the tories back

1 favourite 0 retweets

The Organum Mathematicum is a fabulous-looking thing: vps280516.ovh.net/divulgamat15/i…
A box of sticks which form tables to help with mathematical calculations, sort of like Napier rods, but for artillery and music?!
Of course this oddity is a product of Athanasius Kircher!

1 favourite 0 retweets

In reply to @geoviews

@geoviews @OrdnanceSurvey They say they look for the longest distance between opposing vertices. That's not necessarily the longest straight line in the polygon, if it's non-convex. If there are enough vertices, this won't matter too much, though.
Taking elevation change into account would be interesting!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge @WrongButUseful @reflectivemaths this is giving me flashbacks to when I used to send in a million links to math/maths every week

0 favourites 0 retweets

In reply to @Pecnut

@Pecnut That's quite a thing, to have a single, massive SCOTLAND and all those English regions

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge is the paper you did online somewhere?

0 favourites 0 retweets

Bad Bayesianism:

1) My daughter is wonderful beyond my expectations
2) When bad things happen to people, people on the news say how remarkably good they were
3) In my experience, not all of humanity is particularly good

Therefore, 4) something bad will to happen to my daughter

0 favourites 0 retweets

Testing some @NclNumbas homeworks on ODEs.
Never mind "I can't do calculus... yet", my current frame of mind is "I can't do calculus... still".

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Running down to the printers to get this t-shirt made

7 favourites 1 retweet

In reply to @sxpmaths

@sxpmaths Coefficient of friction between the tyres and the ground isn't given, and you'd expect it to be much less than the friction on the skip, so can infer it's negligible. They should definitely have said that explicitly, though.

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths it's like those geometry puzzles where an important length isn't given, so you can sometimes find an answer by inferring it's independent of the solution and setting it to 1

2 favourites 0 retweets

In reply to @sxpmaths

@sxpmaths @themathdiva but famously, wheels mitigate friction

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @Thalesdisciple Thanks! 'Equal' is one.

2 favourites 0 retweets

In reply to @ionicasmeets

@ionicasmeets As someone responsible for an academic software project, I can say that this kind of mistake is alive and well.

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor More achievable: one that enforces the rule 'I before E except after C'

2 favourites 0 retweets

Looky what just arrived. Thanks, @glitch!

5 favourites 0 retweets

Time for the brexit vote. I've got my cake and I'm eating it!

8 favourites 0 retweets

In reply to @matheknitician

@matheknitician @SparksMaths @IllusiveSteve Oooh!

1 favourite 0 retweets

In reply to @christianp

@matheknitician @SparksMaths @IllusiveSteve I'd really like to use that as a spray paint stencil

1 favourite 0 retweets

So glad I don't get DLA any more. What's the master plan here? twitter.com/DrFrancesRyan/…

0 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor interesting choice of faces on the front cover

0 favourites 0 retweets

In reply to @reflectivemaths

@reflectivemaths @honeypisquared @icecolbeveridge It's good! Best with 4 players

0 favourites 0 retweets

In reply to @reflectivemaths

@reflectivemaths @honeypisquared @icecolbeveridge It gets unmanageable after 6

1 favourite 0 retweets

What exchange rate would cause this to be inaccurate? twitter.com/john_overholt/…

0 favourites 1 retweet

In reply to @rooneyvision

@rooneyvision it looks like the city is sliding gently into the sea

1 favourite 0 retweets

In reply to @aperfect

@aperfect @Fotospeed Get the dithered gif look

0 favourites 0 retweets

In reply to @mathyadriana

@mathyadriana Pronounced 'euro d'?

1 favourite 0 retweets

In reply to @COOLIO_FEAT_LV

@COOLIO_FEAT_LV Cool story

0 favourites 0 retweets

In reply to @myfavethm

@myfavethm Something to do with the crocodile paradox: read.somethingorotherwhatever.com/entry/Gerogior…

1 favourite 0 retweets

In reply to @Mathgarden

@Mathgarden Were you playing isthisprime.com/game/?

11 favourites 0 retweets

I've just learned about Grete Hermann, a German mathematician and philosopher, and student of Emmy Noether. She was an anti-fascist, and provided a sort-of constructive solution to Hilbert's Nullstellensatz.
en.wikipedia.org/wiki/Grete_Her…

6 favourites 1 retweet

In reply to @Mathgarden

@Mathgarden Cool! Was it new to you?

1 favourite 0 retweets

In reply to @Sabetta_

@Sabetta_ @jeremy_fielding Do either of you know what constraints there are on what shapes can be made into gears?

2 favourites 0 retweets

Hey @MoMath1 do you reckon your next MathHappening could be a demonstration of Zeckendorf's theorem in Union Square, outside Zeckendorf Towers?

2 favourites 0 retweets

In reply to @Neuro_Skeptic

@Neuro_Skeptic what's the link between ASD and skull deformity?

1 favourite 0 retweets

In reply to @morethanadodo

@morethanadodo @gsciencelady A while ago I asked you where you got this factoid and you didn't answer - twitter.com/christianp/sta…
Do you know?

0 favourites 0 retweets

In reply to @benorlin

@benorlin I call him Croissanthony

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl BRB, printing "all mathematical progress has measure zero" on a load of t-shirts

12 favourites 3 retweets

In reply to @pwr2dppl

@pwr2dppl either something deep about the foundations of maths, or BAHFest

1 favourite 0 retweets

The Molly and Mack songs are really catchy

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans Are those the Adam Buxton ones? I'm saving them up for when tiny L-P gets bored of Mr Tumble and Yakka Dee

0 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl If you haven't already, Google 'goat tower'

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc tiny L-P is getting started early

0 favourites 0 retweets

Does it bother anyone else that the numbers on the shapes don't correspond to their orders of rotation?

14 favourites 2 retweets

In reply to @robeastaway

@robeastaway @rfkharris @SparksMaths Oh no! I bought his album "Paris Jazz Piano" on a whim in fnac and it's one of my absolute faves.

0 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts That maths behind finding layouts that work is surprisingly complicated: lamington.wordpress.com/2011/12/02/lay…

1 favourite 0 retweets

In reply to @Mathematical_A

@Mathematical_A @stevejmcc There's always time to have another think. Not much effort to be clearer

0 favourites 0 retweets

In reply to @Mathematical_A

@Mathematical_A @stevejmcc Yes, please do that

0 favourites 0 retweets

In reply to @jjaron

@jjaron Weezer are available for weddings, bar/bat mitzvahs, and retirement parties

1 favourite 0 retweets

In reply to @Elyl_V

@Elyl_V @SamsungHelpUK @Android @colourblindorg I guess Samsung, because I have it turned on on my Nokia running Android Pie, and I don't have a notification

1 favourite 0 retweets

In reply to @BexhillMathsjam

@BexhillMathsjam you might get away with using Octave, the open source Matlab clone gnu.org/software/octav…

1 favourite 0 retweets

In reply to @brittneybean

@brittneybean How long until he outdoes Philip Green and runs away with the accumulated pension pots of every high street chain?

0 favourites 0 retweets

My co-milkshake brings the yard to all the boys

9 favourites 2 retweets

Just published asciimath2tex to npm, because someone asked me to: npmjs.com/package/asciim…

0 favourites 0 retweets

In reply to @DavidB52s

@DavidB52s @robeastaway the only other two letters this is possible for are B and S. Both of those are much more popular than L. Bury is the only B team in league two, and Southampton is the only S team in the premiership.

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I know why! 😁
Hint: lazy coders

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge even better, this is what desktop Twitter shows me

0 favourites 1 retweet

In reply to @stecks

@stecks @davidallengreen A likely story

14 favourites 0 retweets

The new web Outlook design has separate buttons for Reply and Reply-All.
This alone is worth switching for.

2 favourites 0 retweets

In reply to @matheknitician

@matheknitician you nerdsniped me and I programmed this: codepen.io/christianp/ful…

2 favourites 0 retweets

He brings shame on the Perfect name twitter.com/john_overholt/…

2 favourites 0 retweets

February

In reply to @Samuel_Hansen

@Samuel_Hansen Fancy writing a quick @aperiodical post with that info?

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith @JeremyJHardy There's the title of your parenting memoirs, righ there

1 favourite 0 retweets

I made an RPN calculator with some nifty features using @glitch. It's at nice-calculator.glitch.me twitter.com/aperiodical/st…

12 favourites 1 retweet

In reply to @anildash

@anildash Thanks!

0 favourites 0 retweets

In reply to @anildash

@anildash @glitch So I should add the ability to embed a calculation in the URL, right?

1 favourite 0 retweets

In reply to @anildash

@anildash @glitch done!
nice-calculator.glitch.me/#15,$%F0%9F%A6…

4 favourites 0 retweets

In reply to @firasd

@firasd @anildash @glitch ahh, what characters will email clients object to? The commas?

1 favourite 0 retweets

In reply to @christianp

@firasd @anildash @glitch because I like being able to see what the calculation is in the URL, which base64 encoding would ruin

2 favourites 0 retweets

In reply to @ch_nira

@ch_nira @aperiodical Hence our first use of the "not that one the American one" tag in our post!

1 favourite 0 retweets

In reply to @jjaron

@jjaron Absolutely the same

1 favourite 0 retweets

In reply to @msmirandasawyer

@msmirandasawyer @BarryJenkins I enjoyed it a lot!

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem what's special about a November sitting? Is it a resit?

0 favourites 0 retweets

I've written a @NclNumbas question which marks a formula given by the student, then checks that they can apply it.
Lots of custom marking stuff to make sure their formula is equivalent to the expected one, and the number they give satisfies their formula
numbas.mathcentre.ac.uk/question/41804…

2 favourites 1 retweet

In reply to @CmonMattTHINK

@CmonMattTHINK @NclNumbas guess who forgot to use the randomised variable

1 favourite 0 retweets

Got my @ucu ballot. There's an election with two candidates, which is being conducted by single transferable vote. 🤔

2 favourites 0 retweets

tfw you're taking a big swig of a drink and have to abort because you're approaching a door frame. #TallPeopleProblems

1 favourite 0 retweets

In reply to @timstirrup

@timstirrup I have to stoop a little bit to go fit under most door frames. When taking a swig, you straighten your back, which means I'd have to bend my legs instead. Looks like the ministry of silly walks!

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge STEP!!!!!

0 favourites 0 retweets

I've just paid for the full version of @devilscalc. It's one of those 'work out what the calculator is doing' games, but it's really good! The calculator is truly _cursed_. I was a bit optimistic thinking I'd do it on the metro though. My brain hurts!

5 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Oh dear! Wishing you a speedy recovery

1 favourite 0 retweets

In reply to @christianp

I'm only on level 14 and there are like 50 more 😭

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem @Samuel_Hansen it was nice to hear you speaking so positively about #BigMathOff on Relatively Prime!

2 favourites 0 retweets

In reply to @MBarany

@MBarany BEEP BOOP I LIKE DATABASES

2 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall I think that list is really just telling you how big those things normally are

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans Just wait until they start talking about group actions

0 favourites 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam Geogebra!

0 favourites 0 retweets

It's always good when you put a sequence in the OEIS and the first hit begins "An obvious ..."
oeis.org/A029578

0 favourites 0 retweets

JS RegExp is getting lookbehind and named capture groups!! 🤩 twitter.com/JavaScriptDail…

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Best one yet

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @icecolbeveridge Finite group do do do do do do!
Quotient group do do do do do do!

7 favourites 1 retweet

The little L-P is a natural mathematician.
We were looking for a kitchen utensil she'd stolen. She went to look under her favourite chair. It wasn't there!
When we did find it, she immediately ran and put it under the chair: now it's a problem we know how to solve! 🤓

30 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith I feel she already has an intuitive, if not rigorous, understanding of that fact

0 favourites 0 retweets

In reply to @jamesgrime

@jamesgrime @jamestanton @maanow Ooh, this is that thing you were talking about! Do you (or they) have it in you to do a bit for the aperiodical about it?

2 favourites 0 retweets

Can I reverse engineer how long I should expect my new freezer to last beyond the standard warranty by using the cost of the extended warranty and a guess at the shop's markup?

2 favourites 1 retweet

In reply to @miclugo

@miclugo We had that problem for a long time. After a while it becomes clearer and then you can post-date the first word, with the knowledge that it really did mean what it sounded like

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 I'm sure I can find the real expected lifespan somewhere (excuse me, I mean 'elicit ground truth' or some such rot)

0 favourites 0 retweets

Does anyone else have the same problem I just had with my smart meter thingamajig?
Clue: there's nothing wrong with the vertical scale

1 favourite 0 retweets

.@My_Metro I'm having trouble with the smart bike lockers. I'm colourblind, so can't tell between red, green and amber lights. (cc @colourblindorg)
The info page says bikes at most 1720mm fit - which dimension is that? Surely all of width, height and length are constrained

3 favourites 1 retweet

In reply to @My_Metro

@My_Metro @colourblindorg Just left Monkseaton. Chained my bike to the rack

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro @colourblindorg ... so, what are the maximum dimensions? It looked like my bike was too tall and the handlebars too wide, but 1720mm must be the length

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro @colourblindorg that doesn't contain any information about the maximum dimensions that will fit. If you can't answer the question, that's OK.

0 favourites 0 retweets

Now a moot point: it's been stolen. twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @tarrou

@tarrou I locked it on a rack like I normally do, so asking about the smart lockers this morning was just exceptionally poor timing

0 favourites 0 retweets

In reply to @ben_nuttall

@ben_nuttall @github Yeah, this has annoyed me for ages.

0 favourites 0 retweets

Breakfast is going really well

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @mark_datko @MathsJam intriguingly, it claims there are 106. It must be including ones on hiatus

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow hyperbolic space! I know of some Japanese people doing a similar radial thing for writing maths

1 favourite 0 retweets

That's 5×60×60 = 18,000 pizzas, around one pizza for every 3,500 people in the UK. Is that a lot? Not very many? Feels the right order of magnitude for what I'd expect. twitter.com/qikipedia/stat…

6 favourites 0 retweets

In reply to @wtgowers

@wtgowers @johncarlosbaez @divbyzero that's a statement I definitely want to put to the test!

0 favourites 0 retweets

In reply to @johncarlosbaez

@johncarlosbaez @wtgowers @divbyzero There's got to be some good psychology in quickly making up random-looking sequences. I wonder if any digit is more likely to slip past unnoticed, being repeated more often than it should

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @OddsAndEvenings This is one of those "I have a fact that I want to show you" puzzles. Not my favourite type.

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor *extremely unsure face*

0 favourites 0 retweets

Lots of colour-based sequences on only connect tonight. I've got even less of a chance than normal!

0 favourites 0 retweets

@charmingnumbers @reflectivemaths @icecolbeveridge It doesn't use LaTeX directly, but a lot of its layout rules are derived from TeX

0 favourites 0 retweets

In reply to @reflectivemaths

@reflectivemaths @Pecnut @icecolbeveridge That kind of thing is fairly straightforward in latex. Maths mode in general is fairly reasonable, with a good reference for the commands to produce different symbols. It's whole-page layouts that are a nightmare.

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ajk_44 @RobJLow @reflectivemaths @Pecnut Less obliquely: there are some cool new tools that fairly easily take LaTeX and produce both printable PDFs and web pages. Most of them involve pandoc. I was just composing a reply saying we should chat about that, because it's something nrich should do

1 favourite 1 retweet

In reply to @reflectivemaths

@reflectivemaths @peterrowlett @njj4 @icecolbeveridge Yeah, you can use \bigger and \smaller and other similarly-named macros to change the size fromvthe default. But like Peter said, you don't really want to make the superscript much smaller

0 favourites 0 retweets

Further evidence the tiny L-P is a mathematician, at bathtime last night:

* holding a bottle full of water *
"Can you put some water in the jug, please?"
* stands bottle upright in jug, spilling none *

Must learn to speak more precisely __to my 1 year old__

19 favourites 0 retweets

@oliver_daddow @colourblindorg @Mariesthename which kind? I have protanomaly and they're easy to distinguish

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge wow, wordpress did *not* enjoy the TeX in that title!

0 favourites 0 retweets

In reply to @Bullsy_Ironside

@Bullsy_Ironside @kyledevans I came here to say that

1 favourite 0 retweets

Witness my very professional technique for transferring PLA filament onto a spindle that fits the 3d printer.

0 favourites 0 retweets

In reply to @nomad_penguin

@nomad_penguin For exams in particular, there were two presentations at @EAMSConf:
eams.ncl.ac.uk/archive/2016/s… by Jennifer Moody
And eams.ncl.ac.uk/archive/2016/s… by Natasa Brouwer-Zupancic

3 favourites 0 retweets

In reply to @christianp

@nomad_penguin @EAMSConf We've run both low and high stakes exams at Newcastle successfully for a few years using @NclNumbas. I can describe what we do if you like, but we haven't got anything published about it yet.

1 favourite 0 retweets

In reply to @christianp

@nomad_penguin @EAMSConf @NclNumbas There's a paper by the eminent @sangwinc which looks at secondary level maths exams, and what kinds of questions can be automatically marked: sciencedirect.com/science/articl…

2 favourites 1 retweet

In reply to @nomad_penguin

@nomad_penguin @EAMSConf @NclNumbas Can you email christian.perfect@ncl.ac.uk? Not sure I have it in me to do it all in tweets!

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith @peterrowlett I would recommend @glitch!

3 favourites 0 retweets

YES. t.co/91gUw4dcEg

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA I would dispute that "very hot" begins between 37 and 39C

1 favourite 0 retweets

In reply to @mathforge

@mathforge @aperiodical root@aperiodical.com, thanks!

0 favourites 0 retweets

Playing around with interconnecting #3dprinted Herschel enneahedra

12 favourites 1 retweet

In reply to @win11sucks

@ThisIsBullet51 I don't know for sure, but I'd be extremely surprised if it did

0 favourites 0 retweets

do I know anyone who's read "The Square Root of Summer" by Harriet Reuter Hapgood?

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn I've left a teeny bit too much wiggle room, so they go together nicely and hold fairly well, but slip off a bit too easily when manipulating it

2 favourites 0 retweets

In reply to @soupie66

@soupie66 do I know them?

0 favourites 0 retweets

Has anyone got something mathematical they'd like to say on International Women's Day, on the @aperiodical?

0 favourites 6 retweets

Just started a 3d print that claims it'll be finished in 9 minutes. Now on the lookout for 3d printers travelling at relativistic speeds. It's the only plausible explanation.

0 favourites 0 retweets

Why doesn't every calculator have a "divide by smallest factor" button?
#NumberTheoryProblems

5 favourites 0 retweets

In reply to @samholloway

@samholloway @LNER Is that the minimal observable unit of chilli?

0 favourites 0 retweets

If you had to pick a symbol for the operation "divide by smallest factor", what would it be? twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @jjaron

@jjaron Gosh that's brilliant, but also terrible UX

1 favourite 0 retweets

Good morning! 🤖

10 favourites 0 retweets

In reply to @Simon_Gregg

@Simon_Gregg Affirmative

1 favourite 0 retweets

In reply to @panlepan

@panlepan Because it looks like a down arrow on top of a vinculum?

0 favourites 0 retweets

In reply to @FOTSN

@FOTSN @BBCRadio4 Where can I put all my tupperware?

1 favourite 0 retweets

just did `git reset --hard` on a directory I'd spent weeks on without committing!!!!
AAAAAAAAAAAAAAA

0 favourites 0 retweets

oh phew, the `git diff` I did before means I can make a patch and get it back 😅

0 favourites 0 retweets

In reply to @CloudoidLtd

@CloudoidLtd Nope

0 favourites 0 retweets

A fab page full of stats and good graphics about growing up twitter.com/MikeEllicock/s…

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc Not at all, except for when I'm proofreading number theory exercises!

0 favourites 0 retweets

March

In reply to @RealityMinus3

@RealityMinus3 Thanks, I'm aware, but currently at the bottom of a pile of relatives. Will try to fix tonight

1 favourite 0 retweets

One of the problems with e-learning is that this never happens to me. twitter.com/Original_Vaugh…

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Right. If I put "all mathematical progress has measure zero" on a t-shirt, what pedantic, smart-alec retorts are you all going to come up with?

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Noted!
Vitali sets are unmeasurable, so this is similar to the "what if interesting numbers don't admit a well-ordering?" response to the classic joke. twitter.com/hartkp/status/…

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In reply to @henryseg

@henryseg @0themdubs @roice713 nice NSF acknowledgement at the end

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In reply to @matthematician

@matthematician #ThatsTheJoke, I think?

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In reply to @CardColm

@CardColm I've got a copy of that in my office!

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In reply to @C_J_Smith

@C_J_Smith

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In reply to @C_J_Smith

@C_J_Smith I've just come downstairs after a bathtime that was going swimmingly until she banged her head on the tap. Now she's crying herself to sleep

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MCDONALDS DOES TWO COLOURS OF SAUCE?!?! 🤯 twitter.com/TheMrBirch/sta…

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Somebody has either sprinkled corn flakes into this toilet bowl or needs to see a doctor ASAP

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In reply to @CounterOfSheep

@CounterOfSheep is this requirement new? It's ridiculous!

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Who writes for statisticsviews.com? You'd expect Wiley and Sons to apply some of their famous added value and fix things like unfinished sentences, which are abundant in this piece. twitter.com/MEIMaths/statu…

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@B_u_r_t_o_n yeah, another point against it. Stick www in front of it

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In reply to @CounterOfSheep

@CounterOfSheep I wonder how I was supposed to hear about it in order to comply. I can't imagine it being upheld if ever challenged.

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In reply to @christianp

this has completely nerdsniped me. The statisticsviews article cites an article in SE London local paper "News Shopper" for the majority of its factoids. That article, of course, gives no references.

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In reply to @christianp

But we can do carbon-dating on the milk in swimming pools factoid! It says 2 pancakes per person, or 117 million pancakes. So the population of the UK was 117/2 = 58.5 million. That was around the turn of the Millennium (the population stat would be a year or two old when used)

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In reply to @christianp

Or, the author of the factoid had a really really out of date reference book. I can't find any hits for "117 million pancakes" before 2014, so that's probably the right explanation.

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In reply to @christianp

And lo, as surely as the sun rises in the east, I've found the source of the stat: an infographic released by Asda. visual.ly/community/info…

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In reply to @christianp

Actually, there are two figures at play: '117 million pancakes' is oddly precise, but '2 pancakes each' could be anything between 1.5 and 2.5!
Dividing 117 million by the population of the UK in 2014, 64 million, gives 1.8 each, which does indeed round to 2

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In reply to @christianp

So we're already 10% off. If you're filling swimming pools with milk, that could lead to an unfortunate spillage.

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In reply to @christianp

Now, swimming pools. An Olympic pool is about 2.5 million litres big, according to google. 93 swimming pools makes 232.5 million litres. That's more than a litre per pancake!

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In reply to @christianp

The recipe I use (Delia Smith's, obv.) asks for 200ml milk per batch, to make about a dozen pancakes. That's 1.95 million litres for the UK, or 78% of a single Olympic swimming pool.

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In reply to @christianp

So where did 93 Olympic swimming pools come from? It's a factor of about 100 off. Centimetres instead of metres on one dimension? Misinterpreted a percentage as a real number?

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In reply to @christianp

The figure for the amount of flour is easier to approximately check: 117 million is almost 10 times bigger than 13 million, so that'd be about 100g of flour per pancake.
I love pancakes more than anyone else I know, and I have never eaten a pancake that big.

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In reply to @christianp

If you're sharing this article with students as a source of fun real-world stats and your prompt isn't "do these stats make the slightest bit of sense?", please reconsider.

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In reply to @robotmaths

@robotmaths What does that mean?

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I love an integerology/lexicography crossover twitter.com/HaggardHawks/s…

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In reply to @peterrowlett

@peterrowlett Turns out there's an undocumented simplifier 'exptrigsimp': docs.sympy.org/1.0/_modules/s…

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In reply to @alexbellos

@alexbellos @BBCRadio4 @BBCr4today I agree, and @robeastaway has written some criticism on his blog: robeastaway.com/blog/radio-puz…

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Being dyspraxic is loads of fun and definitely doesn't result in a permanent exhibition of bruises

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Following the example of the oesophagoose, here's another public health campaign with challenging orthography: "Take Ovar", about ovarian cancer.
Good spelling could save your life!

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In reply to @christianp

(yes, 'oesophagoose' is a thing you're supposed to see on a bus and remember long enough to put into Google, which autocorrects to 'esophagus', leaving you no closer to oesophagoose.org)

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Current status: Making these cups and saucers accessible

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Is there decent offline speech to text software for the @Raspberry_Pi yet? I have a grammar that I recognise, but it can't be compiled to a list of commands.
Needing wifi to talk to google is quite limiting.
(@ben_nuttall, do you know?)

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In reply to @evelynjlamb

@evelynjlamb and now they're going to label your pint of blood 'Sophie Germain'

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In reply to @ben_nuttall

@ben_nuttall @Raspberry_Pi @mycroft_ai @RachelRayns Thanks, I don't think mycroft existed last time I worked on this project. I'll have a look.

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In reply to @christianp

@ben_nuttall @Raspberry_Pi @mycroft_ai @RachelRayns From the docs it looks like mycroft needs to be connected to the internet too. That's the bit I want to avoid

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I would 100% buy this if the quality of threadless t-shirts hadn't gone to the dogs twitter.com/nathanwpyle/st…

3 favourites 1 retweet

In reply to @elinoroberts

@elinoroberts I'm not looking forward to costume days. The thought of it would've given tiny me the horrors!

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In reply to @helenarney

@helenarney whoah there overachiever, give the rest of us time to catch up!

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The most interesting part of this story for me is that the Totnes pound appears to have a £21 note. What are the ramifications of that?
I bet @Pecnut has done the maths.
bbc.co.uk/news/uk-englan…

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The struggle is real t.co/BiK3BD38zZ

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In reply to @MBarany

@MBarany Never mind the Fields medal and Abel prize, there should be awards for mathematicians with particularly good board writing.

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😮 twitter.com/wumi0212/statu…

1 favourite 1 retweet

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @icecolbeveridge @benjamindickman @benorlin @benjamin_leis Levenshtein distance 3

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I made some #math t-shirts!
Would it be worth me putting them up for sale on a print-on-demand site?

11 favourites 2 retweets

In reply to @Fran997331

@Fran997331 @aperiodical Thanks!

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In statistical inference, the most common error is Type III: forgetting which way round Types I and II go.

116 favourites 27 retweets

In reply to @sxpmaths

@sxpmaths @JimPropp Yep, that's one of the ones I've forgotten. The one in the replies about pregnancy, too.

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Today on @BBC6Music, Amy Lamé's show is about numbers and statistics!
bbc.co.uk/programmes/m00…

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Imagining the meeting where it was decided that square metres are probably beyond the cbeebies audience twitter.com/CBeebiesHQ/sta…

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I'm making a bold foray into entrepreneurialism with these t-shirt designs, sold for pretty much the lowest margin redbubble would allow. twitter.com/aperiodical/st…

2 favourites 1 retweet

In reply to @christianp

@PaulsPrattle @drvinceknight you asked, so I obliged!

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In reply to @Gelada

@Gelada @numberphile well, I'm still trying to find my towel

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In reply to @mathforge

@mathforge @aperiodical @SamHartburn Checks out!

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😍
brickbending.com

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In reply to @mathforge

@mathforge @aperiodical @SamHartburn Thingiverse has files you can put in your own printer. Shapeways has printers and will send you what they produce.

Please write your addendum as a comment on the post!

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Theresa May's government resembles one of those genetic algorithms that was supposed to learn to play Mario but instead learned that never leaving the pause screen means it never loses

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COOL WEB PEOPLE: how easily could I set up a livestream of a full screen web page, to run unattended for 24 hours?

2 favourites 1 retweet

In reply to @GhostMutt

@GhostMutt Thanks!

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In reply to @christianp

Next question: Twitch or YouTube? Which is least likely to get brigaded by pimply fascists?

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Yesterday there was one. Today there are two. #LecternMutiny

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In reply to @christianp

Sorry, forgot to add a description to that photo. It's two lecterns in a corridor.

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In reply to @devilscalc

@devilscalc twitch's interface scares and confuses me.

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Check out my pro streaming setup.

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Current source of frustration:
1 -0.9 - 0.1 = -2.7755575615628914e-17

#javascript

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In reply to @jjaron

@jjaron Doublenorwayplusungood

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My income from t-shirt sales has just passed £π!
I'll try to remember you all whenever I use my gold-plated protractor and set square.
redbubble.com/people/christi…

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All my tests pass. Going for a long walk to think about the choices I've made in life.

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In reply to @wtgowers

@wtgowers If you've got a better idea, her door is always clopen

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Coming up to 300,000 digits now! youtu.be/wDW3nF9tX3c

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In reply to @jack_davis_sfu

@jack_davis_sfu it's the speed at which new digits appear

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In reply to @GhostMutt

@GhostMutt Yeah, thanks for the tip

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An automatic portmanteu and rhyme finder! punchlinedesign.net/pun_generator
@icecolbeveridge I bet you'll love this

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In reply to @MathematicsUCL

@MathematicsUCL @chalkdustmag Emilie du Charolais

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😍😍
princess-awesome.com/collections/gi…

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In reply to @christianp

I put in 'britain' and 'leave' and it came up with 'expelgium'.
If we were following policies based on compelling portmanteaux, I'd be fully behind that one!

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In reply to @mathforge

@mathforge @aperiodical @SamHartburn It is?!

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In reply to @BraneRunner

@BraneRunner @peterrowlett @aperiodical @FlintyMcQwerty To get the value of the Nth base 10 digit from the base 16 digits, you need to know all of the first ~N*10/16, not just the last one or two.

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In reply to @peterrowlett

@peterrowlett @BraneRunner @aperiodical @FlintyMcQwerty They'll have verified the base 16 digits, probably, and then converted to base 10

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In reply to @blatherwick_sam

@blatherwick_sam If I was feeling like a smart-alec, I'd just say "symmetry".
Pressed for more details, I'd say that the polygons GBAE and HACF are the same, and GB and HA are perpendicular.

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In reply to @Plattsc

@Plattsc Story checks out. I've only been out with you once, and you said "let's go somewhere else" a couple of times.

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In reply to @blatherwick_sam

@blatherwick_sam symmetry because you're placing a point at the same position on each of the four sides of the square

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In reply to @davidallengreen

@davidallengreen a stream of old men walks past my house to buy the Mail from the corner shop each morning

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Francophone academics: how do you open emails to other academics?
In English, I typically go with "Hi <name>,"
What's the normal level of formality in France?

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In reply to @jiyameng

@jiyameng very nice! Do the sections correspond to fillings?

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Hmm. Not prime.

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In reply to @divbyzero

@divbyzero should the last number be 102, not 120?

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In reply to @robinhouston

@robinhouston @apgox Conway wrote a standalone paper about this with O.G. Cassani, and called it 'Neumbering' - they credit John von Neumann for coming up with it.
link.springer.com/article/10.100…

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In reply to @jjsanderson

@jjsanderson Not at all! Thank you for the advice. Sorry to hear your throat is still bad

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In reply to @tombutton

@tombutton I played my daughter Gangnam Style this morning, but I think I got away with it

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Theresa May
Wanted to stay
But all the other Tories
Were sick of her stories
#clerihew

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In reply to @edsouthall

@solvemymaths @Mathematical_A There's an absolutely enormous amount of info on this sequence in the OEIS: oeis.org/A000081
It pops up in all sorts of places!

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In reply to @statto

@statto @chrislintott I believe that's the aim of @kielder_obs. I don't know enough about astronomy to know how big their telescopes are, but they've got some lovely ones

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In reply to @icecolbeveridge

@icecolbeveridge Not threadless. The ones I recently ordered from redbubble were alright - go for the heavy cotton style, not standard.

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In reply to @peterrowlett

@peterrowlett That makes sense: I had much more success explaining the teacups Latin square puzzle as "each row includes every colour" instead of "no colour appears more than once".

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In reply to @statto

@statto @kielder_obs @chrislintott I highly recommend it

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Code examples in the @NclNumbas documentation are now automatically added to the unit tests to confirm they produce the results the documentation claims they do: 👍

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Swotting up before the indicative votes

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In reply to @icecolbeveridge

@icecolbeveridge Hmm. Is there a way of doing it that isn't just wrapping up "prove the contrapositive" in a contradiction?
Assume n^2 even and n odd, say n=2m+1. Then n^2 = 4m^2 + 4m + 1, odd, so contradiction.

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In reply to @icecolbeveridge

@icecolbeveridge oh, whoops

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In reply to @christianp

@icecolbeveridge so, we get to talk about implicit domains!
Is it fair to assume the convention that n is always an integer is being followed, or do they need to explicitly say it?

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I'm really getting into @devilscalc now. The binary operation levels feel a lot more tractable than the unary ones.

1 favourite 1 retweet

Looks like it's approval voting (vote for as many options as you like; option with most votes wins)
Some parliamentary procedure geeks are having all their Christmases at once! twitter.com/HugoGye/status…

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What fresh hell is this?
(excuse the pun?) twitter.com/Stephenmevans1…

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In reply to @evelynjlamb

@evelynjlamb @myfavethm Newton?

3 favourites 0 retweets

In reply to @jeremyjkun

@jeremyjkun This chimes with me. I've recently started working on storytelling as a skill, both for my own benefit and for maths work.

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This has been going on as long as Brexit, and (until Brexit moved) had the same completion date. The steady, competent progress and on-time delivery have kept me sane. twitter.com/paulappleby01/…

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April

This feels appropriate for today: "Alternative Math"
youtube.com/watch?v=Zh3Yz3…

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Hah, @glitch has come up with a random name that is extremely relevant to my project

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In reply to @northumbriana

@northumbriana I've always thought Thirsk should be north of the border

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In reply to @edsouthall

@solvemymaths if the content is half as good as the title, I believe you

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I decided to try livestreaming coding a maths thing. I failed in several ways:
1) didn't tell anyone I was doing it
2) didn't check I'd switched video output to my screen
3) crashed my PC
Nevertheless, I made a nice hyperbolic thing on @glitch: witty-kick.glitch.me

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In reply to @christianp

@glitch oh!
4) I didn't set it to capture any sound

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In reply to @christianp

@glitch I'm on my own in the office today, and I can probably spin this as both professional development and good outreach, so who's up for watching me do some more maths coding after lunch?

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In reply to @euros

@euros @glitch nope, plain old JavaScript

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Here's a challenge: draw the net of a cube, and label the faces. Then draw another net, and label the faces as if you've turned the cube 90 degrees

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In reply to @peterrowlett

@peterrowlett I feel like we need to start collecting his sayings into a book

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Right, I've got a couple of hours while all the other L-Ps are out of the house, who's up for a bit of streaming maths coding and potentially some baking too?

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Absolutely no promises that this'll be worth watching or even work, but here's a link to watch me try to code up some hyperbolic tilings: youtube.com/c/ChristianPer… twitter.com/christianp/sta…

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In reply to @PaulsPrattle

@PaulsPrattle I got as far as the circle inversion not working

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Our server admin has set a global vim config with shiftwidth=8 and tabstop=2.
I'm more confused than anything else.

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In reply to @nomad_penguin

@nomad_penguin @nhoskee @park_star @carloliwitter They're MathJams in the US.

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In reply to @robinhouston

@robinhouston Seems to!

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In reply to @icecolbeveridge

@icecolbeveridge CON starts slightly lower than UKIP

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In reply to @BarbaraFantechi

@BarbaraFantechi @DrJessBoland @tigerinstemm @j_bertolotti @daisyshearer I'd put the things Jess mentioned in the same category as providing drinks during breaks. Not everyone will need them, but they could be a standard part of the organisation when you run an event

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In reply to @ShriramKMurthi

@ShriramKMurthi Is this just a problem with the phrasing of the message, or would the checker need to do more work to give a more accurate message?

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In reply to @semillerimages

@semillerimages At least one of the many, many cases in my implementation of the algorithm has a typo. I've got a pile of reports of numbers that don't work, that I need to sit down and resolve one day.

1 favourite 0 retweets

I'm really glad we did this interview. Follow @DrJessBoland for videos of mathematical signs!
And if you have a sign for 'topology', please show me! twitter.com/aperiodical/st…

10 favourites 4 retweets

In reply to @jjaron

@jjaron I'm not interested until it can slide the other way to reveal some largely useless "media" buttons. Nokia N95 for life!

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Striking a balance between how much time you want to spend on a short email to a colleague and how well you want to grammar

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An advert on French radio for an Italian pasta sauce, with a slogan in English spoken with a French accent.
🤨

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That is a top notch shop pun. If only @DaveGorman was still doing Pun Street! twitter.com/roger_mansuy/s…

1 favourite 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @FryRsquared @standupmaths SevenYatesNine

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In reply to @SLSingh

@SLSingh I'd be surprised if not - it's something we (at my uni at least) have been expecting for a few years, and experienced this year

3 favourites 1 retweet

In reply to @kyledevans

@kyledevans @SLSingh It's what you said: the new maths GCSE

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In reply to @SLSingh

@SLSingh Mainly the new maths GCSE (and did that cohort do the new A level?), as far as I know. At Newcastle we weren't as badly hit as we feared, which our recruitment people take credit for

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In reply to @christianp

@SLSingh I half remember about there just being fewer 18 year olds this year, too. Engineering was very down on last year, again not unexpectedly

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In reply to @paulscoombes

@paulscoombes @SLSingh I am not a recruitment officer, so I don't want to say anything authoritative. All I know for sure is we were expecting the drop

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Really enjoying the latest episode of @MathsObjects, all about Pythagoras aperiodical.com/2019/04/mathem…

4 favourites 3 retweets

In reply to @BBC6Music

@BBC6Music @FryRsquared Two Dots, by Lusine

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In reply to @miclugo

@miclugo That definitely happens! There's a sizeable contingent of people who commute to London from France, too

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I'm a big fan of this sequence. twitter.com/numberphile/st…

3 favourites 0 retweets

In reply to @mathsjem

@mathsjem "Oh, dreadfully sorry, we're not Jacobins, we're talking about *Jacobians*! "

*two hundred seditious sorts shuffle out of the room*

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In reply to @roger_mansuy

@roger_mansuy @Polytechnique Est-ce que vous connaissez l'origine ou la signification de la diagramme sur l'affiche?

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I've just booked my place for #TMiP2019!
talkingmathsinpublic.uk

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I'm finally getting my head round blender. I've just made this teeny tiny #3dprinted house

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Welp, looks like a couple of hours of using Blender has killed my middle mouse button!

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In reply to @COOLIO_FEAT_LV

@COOLIO_FEAT_LV well done, you've spotted the long con.

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway Hmm, I'm trying to articulate what's surprising about this. Is it that at each iteration sqrt(n) is a suffix of n?

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In reply to @robeastaway

@robeastaway How do you feel about blowing out any of the candles, not just the leftmost few? The candle numbers in that case are then oeis.org/A046829, which currently doesn't have a name or much of anything written about it

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In reply to @standupmaths

@standupmaths @robeastaway If your calculator has a 9th root button and you are the big bad wolf, 999999 is pretty good

0 favourites 1 retweet

In reply to @C_J_Smith

@C_J_Smith I considered shorts, but I reckon I can get another day out of these jeans. #soz

1 favourite 0 retweets

Well, now I've got yet another project twitter.com/Ian_Willey/sta…

20 favourites 3 retweets

In reply to @christianp

Did it! About as irregular a dodecahedron as you can imagine, but I'll love it anyway

6 favourites 0 retweets

In reply to @dmswart

@dmswart In GIMP?! Bravo!

1 favourite 0 retweets

In reply to @dmswart

@dmswart I'd be interested in that. The picture above looks like it'd be far easier in something like inkscape

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In reply to @stecks

@stecks It would make a good t-shirt

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The #PuzzleForToday is rubbish, for a variety of reasons. Yesterday's was particularly egregious - more a "guess what I'm thinking" riddle.
What would a positive version of the segment look like?
My starting point: 30 seconds of maths that you can think about for up to 10 minutes

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In reply to @christianp

Puzzles are fun, but unless you do lots of them, the vast majority of the time you'll bounce straight off them.
It's too easy, as seen in the Puzzle for Today, to dress up a fun maths fact as a puzzle, when just saying the fact would be just as satisfying.

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In reply to @christianp

However, puzzles give you a way of taking a family of problems that is completely understood in the abstract, and picking particular instances that still take some brainpower to solve. For example, I can write a general algorithm to solve sudokus, but I still enjoy them

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In reply to @christianp

If you just want to share a maths fact, it's very hard to boil it down to 30 seconds in a way that both gets the point across and motivates it

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In reply to @blatherwick_sam

@blatherwick_sam Something like:
Suppose x=a^m and y=a^n.
Then xy=a^(m+n) .
And log xy = m+n = log x + log y.
Whether that's a "proof" in that it says something you didn't already know is debatable.

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In reply to @93Purp

@dwendl1 @hollykrieger There's a dedicated community of people doing exactly that on project Gutenberg: gutenberg.org/wiki/Mathemati…

10 favourites 0 retweets

In reply to @kyledevans

@kyledevans @FOTSN And the person they cast to play the main character never looks how you imagined

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This thread has lots of ideas for fun maths things t.co/GorAeLTVKo

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I'm sure other people just hop on trains without a care in the world

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In reply to @drvinceknight

@drvinceknight I struggled to balance PhD thinking time with the work that was paying for it, realised it'd be the same forever, so gave up on research.

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @stecks @MathsObjects #teamindifference

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In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett @stecks @MathsObjects Yeah, this is one of the few things I will strongly disagree about

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Not where I would put the line break

27 favourites 1 retweet

one of my colleagues had his first and surname switched, so just be glad it didn't say "Perfect Christian", because I know myself and I know I'd never take that badge off twitter.com/stecks/status/…

1 favourite 0 retweets

In reply to @thomas_bland

@thomas_bland I feel like we need to codiscover a new colour so we can call it Perfect-Bland

0 favourites 0 retweets

In reply to @JDHamkins

@JDHamkins @pliny_the_ill If you play on an N by N board, the first token dropped in never reaches the bottom. Is it sufficient that the tokens are dropped in sequence, without waiting for them to stop moving?

1 favourite 0 retweets

Why is everything in Edinburgh open 10 til 6? I was hoping to do some shopwandering before or after this conference

1 favourite 0 retweets

In reply to @jamestanton

@jamestanton @panlepan Could you do that again with colours that I can distinguish, please? Varying lightness or using a pattern in addition to colour would be ideal

0 favourites 0 retweets

In reply to @panlepan

@panlepan @jamestanton Thanks! Here's a more accessible version

2 favourites 0 retweets

May

In reply to @Pecnut

@Pecnut @mscroggs Oh god, not this again

3 favourites 0 retweets

The Mastodon instance that @ColinTheMathmo and I run, mathstodon.xyz, had 134 active users in the last week, all talking about #math!
And the wider fediverse is continuing to grow. If you haven't already, have a look!

4 favourites 4 retweets

In reply to @RobJLow

@RobJLow @divbyzero yes, that is much easier to keep track of

1 favourite 0 retweets

Just remembered I've been sent a copy of "99 variations on a proof" by Philip Ording, to review.
It's brilliant, you should buy it if you've ever written, read, or thought about a proof.
press.princeton.edu/titles/13308.h…

35 favourites 7 retweets

In reply to @christianp

It's inventive, it's witty, and by god it's erudite. Every proof contains something new and interesting even to me, a jaded maths hipster.

2 favourites 0 retweets

In reply to @edsouthall

@solvemymaths if my bio doesn't already scream "jaded maths hipster" then I can't help you

2 favourites 0 retweets

In reply to @CDAXY

@CDAXY @ColinTheMathmo I think the introduction to this book mentions that one.

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc Bad transcription or a real life eggcorn?

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb Other mathematical foods: doughnuts, cookies, cake, carrots, banana trees, eggs read.somethingorotherwhatever.com/collection/food

2 favourites 0 retweets

In reply to @porridgebrain

@porridgebrain @DrLucyRogers I set a specific time when I'm going to switch to the other thing.

2 favourites 0 retweets

In reply to @IamHappyHiker

@IamHappyHiker @UnrealMcKay @colourblindorg @BBCBreakfast R A G would work perfectly. Don't bother messing with the colours - an extra way of differentiating in addition to colour is always better

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc Jealous!

2 favourites 0 retweets

Have just realised that talking about going 'to space' is the real life equivalent of that joke about the mathematician drawing a tiny circle round himself and declaring he's on the outside

2 favourites 0 retweets

Email about an imposter syndrome workshop. Recipients hidden.

... am I the only person they sent it to?

13 favourites 1 retweet

In reply to @stecks

@stecks 😭

0 favourites 0 retweets

aaaaand all my tests pass again. 😅

2 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @Desmos I always have time to talk about rounding methods! There are loads! Banker's rounding is my hate crush. Wikipedia has this surprisingly interactive diagram: upload.wikimedia.org/wikipedia/comm…

3 favourites 0 retweets

In reply to @estwebber

@estwebber

0 favourites 0 retweets

My last year's work! Glad to get this out - some proper hard thinking went into it twitter.com/NclNumbas/stat…

1 favourite 0 retweets

In reply to @profRoys

@profRoys @LibDems @ForChange_Now @TheGreenParty Mrs L-P accused me of being a secret tory today after both theirs and the brexit party's leaflets arrived, addressed to me. Started to wonder if I'd walked into the wrong house

0 favourites 0 retweets

In reply to @henryseg

@henryseg I'm just imagining the overfull box errors when your time's up and they try to compile that TeX document at the pearly gates

5 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge You can't spell topology without drawing at least three holes

6 favourites 3 retweets

In reply to @Will_Der_Thrill

@U_MagFhloinn @colourblindorg @sfbrownlee @therainbowbee That sounds like something I could fix! Will talk to my local R expert

3 favourites 0 retweets

In reply to @Will_Der_Thrill

@U_MagFhloinn @colourblindorg @sfbrownlee @therainbowbee Actually, looks like something's already been done: www-r--bloggers-com.cdn.ampproject.org/v/s/www.r-blog…
Which bit of the docs did you want to see something about colourblindness in?

3 favourites 0 retweets

In reply to @monsoon0

@monsoon0 @smh Have you read "Inventing the Mathematician"? It's got some good points about the use of historical mathematicians in textbooks. In short: beware that including loads of rich European dudes shapes the student's perception of who can be a mathematician.

17 favourites 3 retweets

In reply to @Ayliean

@Ayliean @MathsGear @wilderlab had a proper set made a few years ago, which I bought some of. As far as I remember, it was a right knacker to manufacture.

0 favourites 0 retweets

In reply to @christianp

@Ayliean @MathsGear @wilderlab Sorry, not @wilderlab at all! Not sure what I was thinking of. Anyway, the set I got was this: aperiodical.com/2012/09/penros…

0 favourites 0 retweets

There's got to be something in the fact that 'elucidate' and 'Euclid ate' are anagrams

4 favourites 0 retweets

In reply to @Ayliean

@Ayliean I really like that!

4 favourites 0 retweets

eek!

8 favourites 1 retweet

In reply to @evariste1832

@evariste1832 @peterrowlett @nrichmaths In particular, wild.maths.org has lots of activities that need research-like thinking.
And also give her a pile of marking to do and some mandatory GDPR training, for the real uni experience

7 favourites 2 retweets

I agree with all of this twitter.com/northumbriana/…

1 favourite 0 retweets

In reply to @hollykrieger

@hollykrieger Don't worry too much though, it goes the other way too. A pal of mine was once asked after a talk if he'd read the work of Cushing et al.
My pal's name: Cushing.

4 favourites 0 retweets

In reply to @extremefriday

@extremefriday Noted

1 favourite 0 retweets

I'm a big fan of this sequence: oeis.org/A081512
"a(n) = smallest number which can be expressed as the sum of n of its distinct divisors"
(integer sequence reviews sadly still plummeting down the ravine @TweetsofCushing and I drove it into)

1 favourite 1 retweet

In reply to @Cshearer41

@Cshearer41 @_Kat_Agg I *do* have £9 to spare!

3 favourites 0 retweets

In reply to @robeastaway

@robeastaway Division by 6: famously easy

4 favourites 0 retweets

In reply to @robeastaway

@robeastaway £4.95?

0 favourites 0 retweets

What a nice idea! twitter.com/libraryncl/sta…

3 favourites 0 retweets

Rubbish airport breakfast.
Tines of fork: too weak to puncture skin of sausage.
Contents of sausage: too mushy to hold tines of fork.
#GuessImDrinkingThisSausage
#ooerr

3 favourites 0 retweets

In reply to @aperfect

@aperfect Do you have somewhere you write them down?

0 favourites 0 retweets

People who use the notation (a,b) for the gcd of a and b: I bet you're the kind of people who take up an extra seat on the bus with your bag

44 favourites 13 retweets

In reply to @glitch

@glitch is it possible to link a project with a (new) github repo after it's created?

0 favourites 0 retweets

I and the other two members of the e-learning unit @NCLMathsStats have won the Vice Chancellor's Education Excellence Award for our work on @NclNumbas!

25 favourites 6 retweets

I'm not normally one to encourage a twitter hate mob... twitter.com/Pyfagorass/sta…

2 favourites 0 retweets

In reply to @mikeandallie

@mikeandallie Not sure if there's anything specifically mathematical on there at the mo, but @SciGalleryDub is worth a visit

1 favourite 0 retweets

In reply to @christianp

@glitch ahh never mind, found the git stuff under "Tools". I clicked everything at the top of the page and never thought to look at the bottom!

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday I don't think it's unreasonable to insist on "gcd(a,b)". A bare set of brackets could mean so many things

7 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday what happens on scratch paper stays on scratch paper. My beef is with this set of lecture notes

7 favourites 1 retweet

In reply to @christianp

@NCLMathsStats @NclNumbas ... and I've just had confirmation of my promotion!
(Well, new job description, because I have transcended categorisation)

8 favourites 0 retweets

I forgot that @Tegglington is on twitter. The award was also for his work on our tool which converts LaTeX lecture notes to accessible web pages, plus tons of other stuff. It's really good! Not yet open source, though twitter.com/christianp/sta…

5 favourites 0 retweets

In reply to @samira_mian

@samira_mian I am well jel of that shed

0 favourites 0 retweets

In reply to @Mathowitz

@Mathowitz @missbrooksclass @Mathgarden @cbrownLmath 30 is really good for a first go!

1 favourite 0 retweets

In reply to @FryRsquared

@FryRsquared Congratulations!

2 favourites 0 retweets

I've fixed some bugs in my incredible palindromic hat-trick page, and explicitly checked every number up to 9 digits long. Phew!
So it's still true that every whole number can be written as the sum of 3 palindromes
somethingorotherwhatever.com/sum-of-3-palin…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett note to self: never thank Peter for anything

3 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @icecolbeveridge Yes

1 favourite 0 retweets

In reply to @pwr2dppl

@pwr2dppl It's 14C here today and I've been out in a t-shirt all day long. I've never related to a tweet less

2 favourites 0 retweets

Stress-testing the @NclNumbas LTI provider before a high-stakes exam due to take place tomorrow morning. Simulating 1200 sessions, each saving an answer every 5 seconds, with no problems. Exam is ~400 students, so phew! 😌

5 favourites 1 retweet

I really love this piece by @Gelada, in the @NCLMathsStats stairwell

23 favourites 5 retweets

In reply to @jjsanderson

@jjsanderson I'm having an ECG next month. I've never noticed there being too many electrodes

0 favourites 0 retweets

In reply to @wtgowers

@wtgowers I don't think those reviews are real

1 favourite 0 retweets

In reply to @soupie66

@soupie66 @wtgowers No. Do I have to?

1 favourite 0 retweets

The geordie character on Gigglebiz is hate speech

0 favourites 0 retweets

I've just spotted this Hilbert curve marble run by @moebio: thingiverse.com/thing:3031891
It's a brilliant way of demonstrating what a Hilbert curve does

29 favourites 5 retweets

In reply to @christianp

The exam went beautifully! Now enjoying the famous Newcastle sunshine

1 favourite 0 retweets

In reply to @CardColm

@CardColm If I want an approximation to 6/(sqrt(10)-sqrt(7)), I'll put it in my calculator. How is that more important than algebraic manipulation? In a country where less than half the population are comfortable with percentages, this is a silly argument to be having

0 favourites 0 retweets

A #clerihew:

Theresa May
Ran through fields of hay
Everything else she did was wronger
So she's PM no longer

6 favourites 1 retweet

In reply to @jamestanton

@jamestanton That is an excellent picture and will be fixed in my mind from now on

1 favourite 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths On our wedding day, it was raining all morning but lifted just as we said our vows, and the birds started singing. Reading between the lines of your forecast, that's probs what it's saying

2 favourites 0 retweets

Original art prints by Louise Perfect louiseart.anadigi.net

0 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge Flashforge Finder. We plugged it in, and it worked. Takes standard sized filament. Not a spot of bother.

4 favourites 1 retweet

In reply to @helenarney

@helenarney @TheHooveringPod @jessicafostekew @lauralexx @brionymaybakes @WellsComFest Beware the exponential growth of sourdough starter! I wrote this with @stecks yonks ago: aperiodical.com/2012/05/grow-y…

4 favourites 0 retweets

DM me if you'd like to take part in the #bigmathoff 2019.

3 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge July

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After difficult night with the baby, open eyes to see it's bright daylight, and feel awake enough to start the day. Infer that it must be a reasonable time to get up, maybe you even slept in a bit.

FIVE. THIRTY.

7 favourites 0 retweets

@Sara_Tindall Currently happening. We need to get up at 6 to catch a plane, and she's slept through for the first time in ages

0 favourites 0 retweets

The worst sign in the world

39 favourites 11 retweets

In reply to @christianp

I'm "down from level 1 to the toilets on level 1". What are you?

1 favourite 0 retweets

In reply to @stecks

@stecks Ta

1 favourite 0 retweets

In reply to @Wikunia_de

@Wikunia_de All the numbers correspond to floors. Newcastle barely has one terminal!

0 favourites 0 retweets

June

#bigmathoff 2019 is happening! Just emailed all 16 of this year's competitors.

10 favourites 3 retweets

Visiting my dad, who lives in an unfinished quake 1 mod

3 favourites 0 retweets

In reply to @matheknitician

@matheknitician @peterrowlett Currently one repeat.

1 favourite 0 retweets

In reply to @eqdynamics

@eqdynamics It looks like that ceiling is full of clipping errors

0 favourites 0 retweets

There aren't enough logic puzzles about two parents trying to exchange an unwieldy item while carrying both a baby and everything the baby owns

18 favourites 2 retweets

In reply to @christianp

A mechanical puzzle: the baby has grabbed my glasses. I have to close my eyes so she doesn't blind me with their arms, but then I can't see where she's about to ram (or throw) them

2 favourites 1 retweet

In reply to @christianp

A public announcement puzzle where two sets of parents have to work out particular information about each other's babies, solely by loudly declaring facts to their own babies

0 favourites 1 retweet

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @honeypisquared @ajk_44 @nrichmaths @plusmathsorg @MathsWorldUK @maths_week @MathsJam @SparksMaths @SamDurbin1 For consistency, is a human a kind of humanoid?

1 favourite 0 retweets

In reply to @profRoys

@profRoys Under what circumstances would you say that a uni needs to change more slowly? It's easy to identify things we're not doing yet

0 favourites 0 retweets

In reply to @profRoys

@profRoys I might not have phrased my point very well. What could be the downsides of reducing this friction?

0 favourites 0 retweets

Feeling mildly affronted when your phone fails to autocorrect a perfectly cromulent collection of typos

2 favourites 0 retweets

In reply to @glitch

@glitch isthisprime.com

2 favourites 0 retweets

Number of books containing a sentence longer than the entire text of "Dear Zoo" @wacnt

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow That's a good insight

0 favourites 0 retweets

Have installed Toca Kitchen for the little L-P to play with.
It's not her turn yet 🤫

1 favourite 0 retweets

In reply to @HilariousCow

@HilariousCow Not sure you need to

0 favourites 0 retweets

Absolute horror after moving furniture round and plugging in my @Raspberry_Pi containing all our photos and backups: drive mounts, but is totally empty apart from 'swapfile' 😵

Considered jumping out a window, before finding the USB hub has an on/off button I needed to press 😅

3 favourites 0 retweets

In reply to @christianp

@Raspberry_Pi (don't worry, I have a second backup too, after *last time*)

0 favourites 0 retweets

Thanks to @evelynjlamb's newsletter, I've discovered Missing Numbers, a blog by @darkgreener about numbers the government should be tracking but isn't.
missingnumbers.org

6 favourites 4 retweets

Today's ECG was only three electrodes @jjsanderson

0 favourites 0 retweets

This has given me some brain problems twitter.com/Nereide/status…

3 favourites 0 retweets

Today's the day this tweeter learned about windows

6 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful @reflectivemaths You could mention the #bigmathoff. I haven't decided who's in your group yet

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths And shelix cinema. They've decided to call off date night

0 favourites 0 retweets

In reply to @northumbriana

@northumbriana How have I not heard if that!

0 favourites 0 retweets

Crikey, just noticed that isthisprime.com/game/ is approaching the 1.5 million games played mark.
There are some stats to play with at isthisprime.com/game/record.php

10 favourites 7 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @mathsjem that is some top trivia!

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb I feel like there should be a form you can fill in to certify that you've fully considered both your and your partner's roles in the house, and whether a cleaning appliance is an acceptable gift. Something like canibuymyspouseahoover.com

2 favourites 0 retweets

A man just as tall as me has nabbed the front seat with all the legroom on this empty @My_Metro. Now, should we be legroom buddies or should I find somewhere else to sit?

0 favourites 2 retweets

Does anyone need a set of orthogonal whiteboard markers? #3dprinted

9 favourites 2 retweets

This year's "GCSE Maths exam hard" story doesn't seem to pick out an individual question for condemnation: unilad.co.uk/featured/gcse-…
Is this progress?

6 favourites 1 retweet

Your idiot colleagues: store whiteboard pens on end to get all the ink out
You, an intellectual: store them flat to make sure the solvent mixes properly
Me, a bona fide genius:

17 favourites 0 retweets

In reply to @Ri_Science

@Ri_Science I think you mean *shudders in Southerner*

8 favourites 0 retweets

In reply to @elinoroberts

@elinoroberts congratulations!!!

1 favourite 0 retweets

Currently #3dprinting notched planks to make a model of the roof of the Sheldonian theatre.
See if you can spot a youthful CP in this @mathsinthecity document: maths.ox.ac.uk/system/files/a…

0 favourites 0 retweets

In reply to @stecks

@stecks @aPaulTaylor Natural History Museum, surely

0 favourites 0 retweets

In reply to @christianp

It's taking shape!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ajk_44 reset the parallelepiped counter, please

1 favourite 0 retweets

In reply to @alisonkiddle

@ajk_44 @icecolbeveridge Made the mistake of asking a student what he's working on

2 favourites 0 retweets

Managed to crash the lift (in a software way, not physically).
Quite proud of that.

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston @panlepan are you just reading from "Foolproof"? ams.org/notices/200501…

3 favourites 0 retweets

I've published a couple of #3dprint designs on thingiverse:
Write angles cube thingiverse.com/thing:3686353
Sheldonian theatre roof: thingiverse.com/thing:3688567

1 favourite 0 retweets

Sizes of infinity:

the number of whole numbers
<
the number of real numbers
<
the number of times my daughter wants to bake a cake in the Miffy's World game

23 favourites 0 retweets

All I Want for Christmas is Pu twitter.com/harrietalida/s…

1 favourite 2 retweets

In reply to @robinhouston

@robinhouston I'm currently on a beach, but later on I want to check if the ShortLex ordering of the naturals by Roman representation is in

1 favourite 0 retweets

I've made an incident counter using @glitch.
incident-counter.glitch.me/parallelepiped

3 favourites 0 retweets

In reply to @christianp

@glitch *ahem*
incident-counter.glitch.me/wasted-work-ti…

1 favourite 0 retweets

In reply to @sxpmaths

@sxpmaths I was ready to come in with 'rational and fraction aren't necessarily synonyms', but the rest of the text makes even that charitable interpretation impossible

8 favourites 1 retweet

In reply to @miclugo

@miclugo I'm currently having the same struggle. Why do they make it such a deep colour?!

0 favourites 0 retweets

In reply to @profRoys

@profRoys Soon to be renamed the Conservative and Solipsist Party

1 favourite 0 retweets

You've probably played dots and boxes. Can you beat the computer at dots and *triangles*?
Try this, by Tomas Rokicki
tomas.rokicki.com/dottri.html

3 favourites 1 retweet

A yak-shaving day:
Our website broke because a wordpress plugin decided to make one of its features paid-only.
So: write our own plugin.
Need: a development WP server
Problem: work PC is so out of date
Now falling down a rabbit hole of dependencies for docker

4 favourites 0 retweets

In reply to @christianp

I want to use docker-compose, but it tries to run my system's Python 2, which has a broken version of pyopenssl. I don't have root, so I need a python virtual environment.

1 favourite 0 retweets

In reply to @christianp

if fewer than half of the nouns in those tweets make sense to you: consider yourself lucky

5 favourites 0 retweets

In reply to @RAnachro

@RAnachro what does that mean and how would it help me?

0 favourites 0 retweets

In reply to @RAnachro

@RAnachro ah. I just copied /usr/bin/docker-compose to my home bin directory, and changed the top line to use /usr/bin/env python instead of /usr/bin/python

0 favourites 0 retweets

In reply to @christianp

Conclusion: the documentation for Gutenberg block development is not yet complete enough to be useful

0 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass Well, are you?

0 favourites 0 retweets

In reply to @MattPDickinson

@MattPDickinson @OpposeCorbynism well, you've just made me aware of it

0 favourites 0 retweets

Recently I've started putting gherkins in my ham sandwich and I don't think I can eat anything else now.
Vinegar is life.

6 favourites 1 retweet

This is an odd bot twitter.com/LetSandwich/st…

1 favourite 0 retweets

When I buy just a few things at a supermarket, I like to play a game I call "impromptu Macgyver".
Today: size 5 nappy pants, burger buns, slices of cheese and a pot of tahini.
What ingenious use am I putting all of those to?

4 favourites 0 retweets

Has anyone compared the membership of the conservative party with the size of the electorate before the 1832 Reform Act?

1 favourite 1 retweet

In reply to @christianp

Wikipedia says the electorate before 1832 was about 400,000, or around 3.3% of the population.
The Conservative party now has 124,000 members, or around 0.2% of the population.
I thought it'd be closer!

2 favourites 0 retweets

In reply to @TimHarford

@TimHarford I'd like some evidence for that. I bet there are people getting by with really knacky toilets because they don't understand enough, or got a non-plumber to fix it

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans And Suarez seems to have got the immigration paperwork done in under 60 seconds, in between scoring for both teams

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared @tishateaches @SaraHottinger She's on twitter?! 🤩

0 favourites 0 retweets

In reply to @SophieBays

@SophieBays @ch_nira @GingerTom92 @Tony_Mann @FraserProf @mathsExplorers Where did you get that? I want one!

1 favourite 0 retweets

Functional analysisters twitter.com/funnymaths/sta…

10 favourites 0 retweets

In reply to @christianp

Homotopeople

4 favourites 0 retweets

@3bits Hey, call Samaritans

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared "Don't lick the baby!"

2 favourites 0 retweets

My first two-colour #3dprint wasn't a *complete* failure!

2 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith whoop! High fives!

1 favourite 0 retweets

In reply to @badmachinery

@badmachinery I don't know if I'm brave enough to look back at my scrobbling history. Back when I was using it, someone on last.fm sent me a message because I was listening to Eels so much, and I took that as a sign I should reassess my life

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans He'll even steal the shirt off your back?! I'm right off this fella

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc @C_J_Smith I wish we had one of those! I spent yesterday writing a document on learning design for our student interns

0 favourites 0 retweets

In reply to @christianp

@sangwinc @C_J_Smith Wait a mo, I think *I'm* our one of those. Rats.

1 favourite 0 retweets

Am I going mad, or does the new wordpress block editor replace double backslashes with single slashes when you paste into it?

0 favourites 0 retweets

In reply to @yenergy

@yenergy I don't know if you primed me to think that or if I would've had the same reaction unprompted, but I think I'm with you.
That's too many of the same thing to be in one place.

1 favourite 0 retweets

In reply to @alexcorner

@alexcorner But you got your #bigmathoff pitch in to me, so your priorities are in order 👍

0 favourites 0 retweets

So if I have 60% packet loss to my own router, what problem do I have?

1 favourite 0 retweets

In reply to @PaulsPrattle

@PaulsPrattle Consider? I've done it three times today

0 favourites 0 retweets

The hottest say of the year so far is a good day to stand in a crowded room for 8 hours and be enthusiastic to potential maths students, right? #nclvisit

5 favourites 1 retweet

In reply to @My_Metro

@My_Metro if I tapped in before realising there's a replacement bus on, so I'm going to drive into town instead, how do I tap out without going to another metro station?

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro Pay as you go

0 favourites 0 retweets

In reply to @My_Metro

@My_Metro Thanks!

1 favourite 0 retweets

In reply to @theclairodactyl

@legolasismine I'm stood next to a table filled with Danish pastries. You've got it worse, sorry

2 favourites 0 retweets

I've just scheduled the first #BigMathOff post, to go out 9am tomorrow morning. It's nearly here!

15 favourites 4 retweets

In reply to @Steve_Perfect

@Steve_Perfect we moved house before that happened to our bin. I am in awe of your composting skills

0 favourites 0 retweets

The #BigMathOff has an unofficial sticker album! The (in)estimable @mscroggs has set up
mathoffstickerbook.com
Share stickers with me:
mathoffstickerbook.com/friend/Md7OU4G…

4 favourites 3 retweets

In reply to @icecolbeveridge

@icecolbeveridge @mscroggs same

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @peterrowlett @icecolbeveridge You need my favourite database restraint which could also serve as a 90s pop single title: unique together

1 favourite 0 retweets

July

This is the content I come to this website for twitter.com/funnymaths/sta…

28 favourites 1 retweet

In reply to @honeypisquared

@honeypisquared But... my mortgage?

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared Missed opportunity to get in the Tom Jones/The Cardigans banger "Burning Down the House"

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn Quick one, harder if you're doing it in your head: what does a triangle on a sphere with internal angles summing to 3π radians look like?

0 favourites 0 retweets

In reply to @SheckyR

@SheckyR I don't think publishing odds, even as a joke, is helpful

2 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn and there's always mathstodon.xyz/@dudeney_puzzl…

2 favourites 0 retweets

In reply to @alexcorner

@alexcorner @honeypisquared I'm really looking forward to seeing how this one goes. Two very different styles of exposition.

2 favourites 1 retweet

In reply to @FOTSN

@FOTSN little L-P's first (and probably last?) encounter with a floppy disk

2 favourites 0 retweets

In reply to @alexcorner

@alexcorner @benjamin_leis I've *just* realised that e represents that base of the natural log, and not a generic identity element.

0 favourites 0 retweets

In reply to @AnonMathMom

@AnonMathMom We've been through that. There's an uneasy peace maintained by regular payments of balls to the dog. On the plus side, the baby has developed a very accurate 'dog biting this ball with her sharp teeth' mime

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @FlintyMcQwerty @aperiodical new pic who dis

1 favourite 0 retweets

In reply to @ToonSlim

@ToonSlim @FryRsquared @alexcorner @honeypisquared "math-off" is easier to say than "maths-off". That's pretty much the entirety of the logic to that

2 favourites 0 retweets

In reply to @matheknitician

@matheknitician That's what they call me on the mean streets of Whitley Bay

1 favourite 0 retweets

Just 15 minutes left to vote in the @panlepan v @plusmathsorg #BigMathOff match, before today's starts: aperiodical.com/2019/07/the-bi…

0 favourites 1 retweet

In reply to @SophieBays

@SophieBays crikey, that's my old school!

0 favourites 0 retweets

Bot idea: tweet daily news headlines accompanied by a screenshot of a 3×3 Civ 2 grid.

2 favourites 0 retweets

In reply to @becky_k_warren

@becky_k_warren Ooh, that diagram looks familiar! Might make an appearance in the #bigmathoff if I've read my notes properly

1 favourite 0 retweets

Excellent thread twitter.com/erik_kaars/sta…

2 favourites 0 retweets

Doing some #BigMathOff admin on my day off while the baby sleeps. There's some really good stuff coming up in the next few days!

10 favourites 1 retweet

In reply to @KarenCampe

@KarenCampe @aperiodical @icecolbeveridge @kyledevans just did a few minutes ago, or so I thought

1 favourite 0 retweets

Self-visualising data. Guess which is the little L-P's favourite colour

12 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared @PaulsPrattle

0 favourites 0 retweets

In reply to @SophieBays

@SophieBays Glad to hear it!

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Ooh, that's very satisfying

1 favourite 0 retweets

In reply to @GillLoomesQuinn

@LoomesGill @Shona_Mu I have an arrangement with the office that they'll help me with forms and things, even when I'm supposed to do them myself

7 favourites 0 retweets

Is there a conventional name for the set of rationals closed under taking square roots? It's not ℝ because it doesn't include the transcendentals, and it doesn't include things like ∛2.

1 favourite 2 retweets

Correct answer twitter.com/daan_van_berke…

1 favourite 0 retweets

In reply to @RAnachro

@RAnachro Yes, that's what led me to the question. I feel like something like ℚ[√] should do

2 favourites 0 retweets

In reply to @thinkmaths

@thinkmaths @aperiodical #MattOnYourMind

0 favourites 0 retweets

I'm really enjoying the #BigMathOff, both the entries and people's reactions to them. Thanks all round!

14 favourites 1 retweet

In reply to @kyledevans

@kyledevans One of my jobs next week is to go to the toy shop and buy some toy goats. Thank you for the warning

2 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths @becky_k_warren @GioHio @aperiodical The voting will continue until morale improves

3 favourites 0 retweets

In reply to @MathTechCoach

@GioHio It's a way of getting 54 bits of fun maths from a wide group of people, most of whom I'd never met before. I'm doing everything I can to make the competition aspect unimportant.

4 favourites 0 retweets

In reply to @samira_mian

@samira_mian Have you seen a coaster like this before? It's from imagesdorient.com

1 favourite 0 retweets

In reply to @samira_mian

@samira_mian I got mine in a cookery shop in The Hague. They get around!

1 favourite 0 retweets

In reply to @benjamin_leis

@benjamin_leis @CmonMattTHINK @DavidKButlerUoA And with 10 trillion marbles?

0 favourites 0 retweets

Email from me pal Jez saying Labour would campaign for Remain in a second ref. Finally!

2 favourites 0 retweets

In reply to @SheckyR

@SheckyR @icecolbeveridge @stecks @mscroggs you can try bribing Matt, but I can't see how it'll help

0 favourites 0 retweets

In reply to @ch_nira

@ch_nira @aperiodical I had that thought just last night! This year, just keeping up with getting the pitches on the site has used up a lot of my time. I'll see if I can do something at some point.

3 favourites 0 retweets

In reply to @christianp

@ch_nira @aperiodical I have a feeling I set up a JSON endpoint for @mscroggs's ceefax page. Fancy whipping up a graph, Matthew?

4 favourites 0 retweets

In reply to @mscroggs

@mscroggs @ch_nira @aperiodical Almost definitely

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs @icecolbeveridge @stecks I'm enjoying the stickers though

4 favourites 0 retweets

In reply to @colinjcotter

@colinjcotter Yeah, but it feels a bit closer than what he's said before

0 favourites 0 retweets

In reply to @mscroggs

@mscroggs @ch_nira @aperiodical Try this: aperiodical.com/wp-json/wp-pol…

2 favourites 0 retweets

In reply to @johndavidread

@johndavidread @aperiodical Yeah, I think 24 hours is a bit too short. I only needed an extra day to allow 48 hours in the group stage, but that pushed the final into August, when I'm on holiday. The other option was more than one match starting per day, which I think is too much to keep up with

1 favourite 0 retweets

In reply to @johndavidread

@johndavidread @aperiodical Yeah, that's what I meant - it entails another day before the result is known, which pushes the schedule into August

1 favourite 0 retweets

In reply to @matheknitician

@matheknitician @johndavidread @aperiodical Exactly

2 favourites 0 retweets

In reply to @mscroggs

@mscroggs @ch_nira @aperiodical @honeypisquared @3blue1brown and here it is a graph of percentages! I just got back to my desk and found my old Jupyter notebook.

4 favourites 0 retweets

#BigMathOff twitter.com/JimPropp/statu…

1 favourite 0 retweets

Here's a #math #3dprint I've just made.
What can you say about these pieces?

8 favourites 1 retweet

In reply to @christianp

When I stack them on top of each other, this is what it looks like.
What do you notice?

4 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared Farts-in-waiting

1 favourite 0 retweets

In reply to @benjamin_leis

@benjamin_leis @honeypisquared Uhhh, you mean @SophieBays

2 favourites 0 retweets

In reply to @SophieBays

@SophieBays @honeypisquared @benjamin_leis We've already got one competitor made of two people, so two competitors made of one person wouldn't be a huge upset

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans @aperiodical @becky_k_warren Every day! Time to take a hatchet to the polls plugin

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared @SophieBays @benjamin_leis Does that mean... eeeeee!!!

0 favourites 0 retweets

Has anyone been following along with the #BigMathOff using a screenreader or other assistive tech? Was anything important inaccessible? Please say it was worth my while writing out all that alt text, I feel bad I haven't had time to check YouTube captions.

8 favourites 4 retweets

We're halfway through the group stage of the #BigMathOff! Whoop!

Why did I volunteer to do this much admin?

12 favourites 0 retweets

In reply to @JimPropp

@JimPropp I think @alexcorner can teach you a thing or two about brevity

2 favourites 0 retweets

In reply to @metroapologises

@metroapologises Have some ambition: faulty aircon might interfere with the wifi

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Crikey! Lends new meaning to the phrase 'railway sleeper'.

5 favourites 0 retweets

In reply to @panlepan

@panlepan There's a site called aperiodical.com that will publish anything you write about your favourite maths, any time of year. 😉
The math-off provides motivation, though, which is 90% of the battle

2 favourites 0 retweets

In reply to @becky_k_warren

@becky_k_warren @panlepan would it help if I shared figures like number of readers, at the end?
They're quite good

3 favourites 0 retweets

I needed to get this out of my head @standupmaths

930 favourites 68 retweets

In reply to @alisonkiddle

@ajk_44 @becky_k_warren @easternmaths ahh, is that what it is? I'll change it to a link

0 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @becky_k_warren @easternmaths I've updated the post so you have to press a button before the geogebra app loads. Please tell me if that fixes it

2 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 @becky_k_warren @easternmaths you discovered my secret middle name, revealed only when my name is spoken backwards

4 favourites 0 retweets

As promised, I have taken a hatchet to the wordpress plugin powering the #BigMathOff polls. Hopefully they'll all behave from now on.

6 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Are you still on the train?

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared @JimPropp If you haven't read Jim's blog, please do. He's one of my favourite writers about maths.

3 favourites 0 retweets

In reply to @umbernhard

@umbernhard @standupmaths I originally had it that way round, but then I thought someone would point out that his hair was quite glossy

4 favourites 0 retweets

In reply to @SophieBays

@SophieBays @aperiodical YouTube can do it automatically. I just need to go through and check the maths words

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith @peterrowlett Best to nip that in the bud: it's imaginary, not jmagjnary

7 favourites 1 retweet

Totes putting this on a t-shirt twitter.com/christianp/sta…

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical @kyledevans @becky_k_warren Where have I seen a 52%-48% split before?

3 favourites 0 retweets

In reply to @jolyonjenkins

@jolyonjenkins I'm still cross about the roofer who, after refusing to take payment by bank transfer, said "it's not worth paying tax on little jobs like this"

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Wait until I tell you about the absolutely brilliant tournament structure I've come up with for next year's #BigMathOff

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans @becky_k_warren @aperiodical @mscroggs Too soon.

1 favourite 0 retweets

I get the strong impression that if my daughter could say "for God's sake, Dad, look lively!" she would.
#SixAM

2 favourites 0 retweets

Newcastle pals who work near the centre for life: is there a toddler friendly cafe nearby? (I'm not going in the fun bit, to head off the obvious answer)

0 favourites 0 retweets

I'm preparing the #BigMathOff posts for the week. You've got so many treats coming your way!
And the silly sports have all finished today. We're only halfway through!

7 favourites 0 retweets

In reply to @matheknitician

@matheknitician @srcav @RealityMinus3 @icecolbeveridge @aperiodical @becky_k_warren @bluecombats I've just sent you 50 bonus stickers. Hope it's in there!

1 favourite 0 retweets

Are you kidding.

0 favourites 0 retweets

Some good questions about how the #BigMathOff plays out twitter.com/SheckyR/status…

0 favourites 0 retweets

In reply to @C_J_Smith

@C_J_Smith @TheLabAndField Send it to us

1 favourite 0 retweets

Today's #BigMathOff match contains two brilliant pitches. If you haven't voted yet, do! I'm glad I'm exempt, I'm not sure which I'd pick, cows or calculus.
aperiodical.com/2019/07/the-bi…

6 favourites 3 retweets

HOW DO YOU PASTE A BACKSLASH INTO THE NEW WORDPRESS EDITOR

0 favourites 1 retweet

In reply to @PaulsPrattle

@PaulsPrattle guess again! It strips them out, for reasons that I'm sure sounded good at the time

1 favourite 0 retweets

In reply to @christianp

(you're also in for a treat tomorrow, and have had indistinguishably brilliant treats for the previous fortnight!)

1 favourite 0 retweets

In reply to @DrCaroSummers

@DrCaroSummers Of course a linguist would know all the alt codes! I can type a single backslash, but they get stripped out when I paste a block if text in.

0 favourites 0 retweets

In case you didn't see me at work today, it was a lot like this twitter.com/northumbriana/…

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge 6 1 de siste

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans Now you mention it, a super over isn't a bad idea for the Extremely Fair Tiebreaker

0 favourites 0 retweets

Well, gang, I lasted half an hour doing real work before nerdsniping myself. Might have pretty pictures to share in a mo

1 favourite 0 retweets

In reply to @christianp

So, @robeastaway tweeted, which made me think about zequals.
It's his brilliant time-saving device: when doing arithmetic, forget about all the digits after the first one.
For example, 123 z≈ 100.
You can look at the relative error of zequals compared to doing it precisely

1 favourite 0 retweets

In reply to @christianp

If even the different kinds of digit are too much to keep in your head, you can also do zequals in binary. Here's what that looks like:

1 favourite 0 retweets

In reply to @christianp

But I'm always looking for ways to do worse. So, what if you did zequals, but instead of keeping the most significant digit, you kept the least significant (non-zero) one? I'll call that 'meequals',
For example, 123 m= 300.
What does the relative error of that look like?

0 favourites 1 retweet

In reply to @christianp

It looks like this! The error changes drastically from one number to the next, but you can still see the fractal-ish pattern. That's interesting!
But don't let the scaling on the plot fool you: this method is way, way worse than zequals.

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway Good point! Will modify my code after this graduation ceremony

0 favourites 0 retweets

In reply to @becky_k_warren

@becky_k_warren @helenarney we had that! And a Europe one too

1 favourite 0 retweets

Just found out that when your toddler turns on Google assistant and says 'mama', it shows information about the 2013 horror film 'Mama'

3 favourites 0 retweets

In reply to @panlepan

@panlepan @stevenstrogatz Or even 𒁹

1 favourite 0 retweets

In reply to @VickyMaths1729

@VickyMaths1729 @OddsAndEvenings @aperiodical @alexcorner I've just approved a few comments, including yours. The consensus seems to be that the conjecture is true (phrased in varying levels of "it's obvious")

2 favourites 0 retweets

In reply to @HigherGeometer

@HigherGeometer Elsevier is Dutch, so the GDPR should allow you to ask for your email address to be removed from their database

0 favourites 0 retweets

In reply to @christianp

@HigherGeometer Or do you need to be an EU citizen? I can't remember

0 favourites 0 retweets

In reply to @HigherGeometer

@HigherGeometer yes, the GDPR allows you to request that your data is removed from the database, not just unsubscribe from the emails

1 favourite 0 retweets

tfw your employer gives your unit £5,000 in recognition of the excellent work you do making an open source e-assessment system, then your commercial competitor gets $7 million from investment funds

0 favourites 0 retweets

In reply to @christianp

(Newcastle spends a significant chunk of money on employing me, Chris and George to develop and support Numbas, and gives it away to the wider world, which it doesn't need to do. That is the value of a public service institution)

7 favourites 1 retweet

A mention of rithmomachia will always catch my eye, but this one's really something: arxiv.org/abs/1509.03177
The authors have found a way to extend rithmomachia to infinitely-wide boards!
Fancy a game, anyone? Won't take a moment. @standupmaths @tomscott @jamesgrime @stecks

2 favourites 0 retweets

In happier #BigMathOff news, the world's most interesting mathematician (2018) has had a nice day in Greenwich twitter.com/ch_nira/status…

11 favourites 5 retweets

In reply to @lyzidiamond

@lyzidiamond @glitch What?!?! How?

0 favourites 0 retweets

In reply to @lyzidiamond

@lyzidiamond @glitch So is python already installed? The Ruby example in one of the other replies had a glitch.json file - is that documented somewhere? Sorry if I could've found it easily, I'm reading all this on my phone

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Apart from the match on the 24th?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge

1 favourite 0 retweets

In reply to @stevenstrogatz

@stevenstrogatz Sumaze from @MEIMaths is a very good puzzle game at that level

5 favourites 1 retweet

In reply to @C_J_Smith

@C_J_Smith "Irish night"

1 favourite 0 retweets

In reply to @wtgowers

@wtgowers That's got to be a glitch in the matrix.

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo the ICO: ico.org.uk/make-a-complai…

1 favourite 0 retweets

I've had a couple of student interns, Holly and Alex, working with me on #3dprinted #math for the last few weeks. They've done some brilliant work, which we'll be sharing. For now, I want to show you this kaleidocycle designed by Alex. It printed as one piece - that blew my mind!

95 favourites 26 retweets

In reply to @christianp

The question I have at the moment is: what's the locus of the points on this thing?

2 favourites 1 retweet

In reply to @matheknitician

@matheknitician Of course!

1 favourite 0 retweets

In reply to @soupie66

@soupie66 How weird! It's just a 3d printed thingy rotating. My hands are in shot, so maybe it thought it was a nudey show

1 favourite 0 retweets

In reply to @k_houston_math

@k_houston_math Yes!

1 favourite 0 retweets

*goes on a wild chip-eating binge*
*keeps precise count of how many were eaten*
Only explanation: Dracula twitter.com/MoMath1/status…

1 favourite 0 retweets

Your best ideas for when you'd want this instead of a set of compasses, please twitter.com/MachinePix/sta…

35 favourites 10 retweets

@koszuldude there should also be an embargo on saying "my child sleeps through the night!" until they're 18

1 favourite 0 retweets

It's the penultimate match of the #BigMathOff group stage! This one really matters, if you're following the competition: whoever wins today goes through to the semi-final.
(If you're not, it's worth a look for two bits of fun maths) twitter.com/aperiodical/st…

4 favourites 2 retweets

I can't believe this account has fewer followers than I do. It's really good! twitter.com/CarveHerName/s…

0 favourites 0 retweets

In reply to @christianp

is nobody bothered that it doesn't actually draw circles?

8 favourites 1 retweet

In reply to @christianp

anyway, I'll only accept one alternative circle-drawer, and it's the thaMographe: thamtham.fr
youtube.com/watch?v=6XHpEy…

4 favourites 0 retweets

In reply to @christianp

Here's the thingiverse entry for the kaleidocycle, with files you can print or customise: thingiverse.com/thing:3763476

5 favourites 1 retweet

In reply to @elinoroberts

@elinoroberts so he can't pretend in his first speech that he's going to be able to govern, I suppose

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I don't think that's quite it - the distances between the points aren't constant - but it makes a nice shape

1 favourite 1 retweet

In reply to @christianp

@icecolbeveridge You must be right that the centres are always in the same plane. So does that mean that the hinges don't move in circles?

1 favourite 1 retweet

I feel like the author of this form and I disagree on some major aspects of ontology

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I did some fiddling to get it to work, and the middles don't seem to stay in the same plane. It confused me so I stopped!

0 favourites 0 retweets

In reply to @AlexSGWilson

@AlexSGWilson OK, that's a good reason

1 favourite 0 retweets

In reply to @noctnica

@coffem0m @shiffman @thecodingtrain I used regularexpressions.info a lot

0 favourites 0 retweets

In reply to @SophieBays

@SophieBays @VickyMaths1729 *twiddles moustache*
Now you HAVE to do more maths!

3 favourites 0 retweets

*cries in Northern*
Imagine getting anywhere for £1.50!
Imagine knowing how much the bus will cost before getting on it! twitter.com/adambecket/sta…

10 favourites 4 retweets

In reply to @intersectarian

@intersectarian choose!

1 favourite 0 retweets

In reply to @samjshah2

@samjshah2 Could you write a quick piece about this for the @aperiodical?

0 favourites 0 retweets

I've just realised the train I've booked for #tmip2019 at the end of August leaves Newcastle at 05:58.
The perils of using the "arrive by" option on the booking form!

0 favourites 0 retweets

In reply to @thamographe

@thamographe that's a very good point!

1 favourite 0 retweets

John Lewis's men's section is brilliant if you like wearing plain blue, or occasionally brown

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge that looks right!

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway You were in Newcastle?!

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway Lots of (most?) cafes, restaurants, and other places with taps in the centre of Newcastle have stickers up saying they'll fill your water bottle for you. A big public water fountain would be helpful too

1 favourite 0 retweets

I've had a coupe of days to think about @honeypisquared's #BigMathOff pitch, and I'm still not completely sure how I feel.
I'd like to hear your opinions! twitter.com/aperiodical/st…

9 favourites 1 retweet

In reply to @KarenCampe

@KarenCampe @aperiodical @samjshah2 but the whole thing's about working out why that pattern breaks, right? Anyway, if I'm going to change it I had esprit d'escalier this morning and realised "chord progressions" would've been way better

1 favourite 0 retweets

In reply to @christianp

@KarenCampe @aperiodical @samjshah2 I've changed it to "an unexpected chord progression". Hooray compromise!

2 favourites 0 retweets

In reply to @extremefriday

@extremefriday @honeypisquared I've heard rumours it's a 30,000 word essay on Morse theory

4 favourites 0 retweets

Testify! twitter.com/MhairiMcF/stat…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Does he know all the jelly beans' names yet?

1 favourite 0 retweets

In reply to @northumbriana

@northumbriana At least they haven't offered us a plaster cast of it, like the Elgin marbles

2 favourites 0 retweets

Well, I managed an entire month before having to type up a #MathOff post the morning of. I've got a bone to pick with whoever scheduled the final for Mrs L-P's birthday

5 favourites 0 retweets

In reply to @christianp

did it!!! Two minutes to spare!

4 favourites 0 retweets

I've finally completed the #BigMathOff sticker book. I didn't have time to trawl through making swap requests, so I've just been accepting requests other people send me.
I've got 39 spare stickers left. If you're still playing, send me a swap request: mathoffstickerbook.com/friend/Md7OU4G…

4 favourites 0 retweets

While investigating this, I made this lovely plot, which I want on a t-shirt or a poster or something twitter.com/david_cobac/st…

8 favourites 0 retweets

In reply to @stecks

@stecks I am currently moving at about 50mph away from the code that made it happen

0 favourites 0 retweets

In reply to @samjshah2

@samjshah2 Is it true that any permutation of the columns (or rows) would produce another grid with the same property? In that case, I want to do something like sort the columns, and see if that looks nice.

0 favourites 0 retweets

In reply to @samjshah2

@samjshah2 Want to hear my argument?

0 favourites 0 retweets

In reply to @samjshah2

@samjshah2 Suppose swapping columns A and B introduces a bad rectangle.
Then at least one side of the rectangle must be in column A or B, say A w.l.o.g.
Then swapping the columns back puts that side of the rectangle in column B. But that's the initial arrangement, which had no rectangles

0 favourites 0 retweets

In reply to @samjshah2

@samjshah2 I think you can express this as "the number of bad rectangles is invariant under permutations of the rows and columns"

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Don't make me write a rulebook

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In reply to @icecolbeveridge

@icecolbeveridge I've just realised that every game of cricket ever has been played on the surface of a sphere, so one team could just stand on the other side of the boundary and declare the other team out of bounds

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If @SophieBays's #BigMathOff pitch today has sparked a fascination with the prosecutor's fallacy, this is the quiz for you! twitter.com/d_spiegel/stat…

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In reply to @SophieBays

@SophieBays I was hoping someone would save me some work and pitch a schedule this year, but no luck!

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In reply to @icecolbeveridge

@icecolbeveridge it's happening again twitter.com/i/events/11562…

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In reply to @icecolbeveridge

@icecolbeveridge @hartkp I'm not against it, but I'm not all for it either.
The Maclaurin series for e^x, in RPN, is:

1 x x 2 ^ 2 ! / x 3 ^ 3 ! / ... + + + ...

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In reply to @honeypisquared

@honeypisquared @panlepan Welcome to the fraught world of gendered nouns in French

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In reply to @icecolbeveridge

@icecolbeveridge @hartkp it could, but my point was about how awkward expressions with lots of terms look. I'm sure there's been some cognitive science done about this.

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In reply to @christianp

@icecolbeveridge @hartkp You also encounter problems when trying to write down the general formula: how do you write the differential operator? And then, how do you write the derivative of the composition of two functions? I think you end up needing a function application operation

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In reply to @northumbriana

@northumbriana we sold our house to him. Very nice man

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In reply to @SheckyR

@SheckyR man, I wish I was getting paid for this

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In reply to @samjshah2

@samjshah2 as a consolation prize, here's a 40x40 image of you that is also a prime number (I think)

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In reply to @JulianMaths

@JulianMaths @mathsjem yes, it's really good. Properly hard though!

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In reply to @samjshah2

@samjshah2 @Gelada @zacharyabel ahhh, so sorry! I actually made the image data for the en-primed version, but that's the original. Hang on...

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grep "simply" -r instructions_written_by_student

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In reply to @christianp

find instructions_written_by_student -type f -exec sed -i "s/ simply//g" {} \;

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In reply to @christianp

@samjshah2 @Gelada @zacharyabel Here you go. Not quite as nice this time. It seems to occasionally get lucky and find a prime without changing too much, and other times messes things up. I'm sure I could apply some simple divisibility tricks to the last few digits to make it quicker

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In reply to @jjsanderson

@jjsanderson I had two students spend six weeks writing some instructions on 3d printing. They did some great stuff, but I now realise I should've kept a closer eye on their writing style

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In reply to @christianp

@samjshah2 @Gelada @zacharyabel ah! It found this one after only changing 104 pixels. That's pretty much ideal

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In reply to @jjsanderson

@jjsanderson sub-editing doesn't currently feel like it'd be any quicker than just writing it myself. I know that's not true, though. They were really good!

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August

Look upon my works, ye mighty, and despair!
(I'm trying to learn #blender)

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Ha!

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In reply to @mscroggs

@mscroggs so is the #BigMathOff definitely back next year too?

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In reply to @johncarlosbaez

@johncarlosbaez Since D.H. Lehmer was involved, I bet the proof was computational. Lehmer was the inventor of the photoelectric number sieve: computerhistory.org/collections/ca…

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In reply to @mscroggs

@mscroggs @matheknitician I've basically signed myself up for not having any free time in July each year. This year was a lot more efficient than last year, though.

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In reply to @zacharyabel

@zacharyabel @dandersod @MathyMcMatherso @samjshah2 @Gelada ... wait a minute, I have a huge HPC cluster available to me. Something to play with when I'm back in work next week!

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In reply to @zacharyabel

@zacharyabel @arundquist @Gelada @samjshah2 @dandersod While we're talking dithering algorithms, for a long time I've been meaning to have a go at implementing Hilbert curve dithering: possiblywrong.wordpress.com/2017/12/26/hil…

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In reply to @zacharyabel

@zacharyabel @arundquist @Gelada @samjshah2 @dandersod for reference, here's my Python prime-image-finding notebook: gist.github.com/christianp/8b0…

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In reply to @SophieBays

@SophieBays @SamHartburn @icecolbeveridge @mscroggs @matheknitician Thanks for the offers of help, everyone. ♥
95% of the work is typesetting the pitches in wordpress, and I couldn't work out a good way of sharing that even with Katie. I'd have to have much bigger lead times, which wouldn't be fair on the competitors. I'll do some thinking

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In reply to @honeypisquared

@honeypisquared @SophieBays @SamHartburn @icecolbeveridge @mscroggs @matheknitician I'd take that up in a heartbeat

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In reply to @kyledevans

@kyledevans 👋

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In reply to @0apropos

@0apropos @aperiodical Sorry, you'll have to go cold turkey

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In reply to @icecolbeveridge

@icecolbeveridge @SophieBays @0apropos @aperiodical Actually, I was just considering a league format for next year...

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In reply to @benjamin_leis

@benjamin_leis @icecolbeveridge @SophieBays @0apropos @aperiodical Getting the pitches on the site. Lots of image and video uploading, retyping maths as latex, writing alt text

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In reply to @mathsjem

@mathsjem @Mathematical_A We've still got maths year 2000 posters up in our stairwells. 🧓

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In reply to @JanvierUK

@JanvierUK They'll solve any mystery!

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In reply to @JanvierUK

@JanvierUK ... me?
I like to read the credits, OK?

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In reply to @JanvierUK

@JanvierUK If you don't read the credits you don't find out about incredible people like Nikolay Fartunkov m.imdb.com/name/nm3046916/

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It's reassuring to know that in 2019 children's birthday party DJs still start with Mambo No. 5

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In reply to @christianp

My daughter is drinking a Fruit Shoot. Pray for us

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In reply to @icecolbeveridge

@icecolbeveridge IT'S BEGUN 🦈

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In reply to @christianp

@icecolbeveridge We are now riding shotgun

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In reply to @panlepan

@panlepan @wilderlab @TradeTexasBig Yeah, I vaguely remember doing that

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Having a toddler is like playing Monkey Island sometimes. Just now I was holding a blue balloon, a stuffed chicken, and a bowl of cereal.
I just worked out that I need to "USE teddy WITH fabulous jewels" in order to get her out of bed.

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Answer: twenty years ago.
@TynemouthPool

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In reply to @peterrowlett

@peterrowlett A classic ruse

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In reply to @C_J_Smith

@C_J_Smith Uh oh uh oh uh oh!

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I didn't know this! Way more noble than Galois.
(what is it about impending doom that makes French people do maths?) twitter.com/sesmith/status…

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In reply to @FOTSN

@FOTSN Helen L-P is v v v interested

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Trying out a new puzzle on Mrs L-P

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The passive voice is being edited out of this document.

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That was surprisingly intuitive!
Must resist the temptation to sit and play it all day twitter.com/panlepan/statu…

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Oh my god. I actually have to solve the word problem in a group.
I never expected my master's dissertation to be useful!
(available at somethingorotherwhatever.com/old/the%20word… if you're interested)

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In reply to @pkrautz

@pkrautz server ran out of space again. I don't know how other instances avoid this - there's no automatable task to clear up preview cards that fill up the disk

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In reply to @ben_nuttall

@ben_nuttall Sounds like a project idea to me

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I'm a big fan of this twitter.com/intersectarian…

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In reply to @ShriramKMurthi

@ShriramKMurthi Clearing is for students who didn't get the grades necessary for the unis they got offers from. In England and Wales, unis make offers before you've got your grades. When results come out, there's a mad dash to find a place

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In reply to @christianp

@ShriramKMurthi Unis below the top tier, i.e. not Oxford or Cambridge, try to get students who didn't apply to them but are at least as good as the students who did (and now, just try to bulk out their numbers with students they can just about justify taking)

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In reply to @ShriramKMurthi

@ShriramKMurthi @elinoroberts Not at all! You'd do everything by phone on clearing day. The UK isn't *that* small!

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The word 'hyperboligami' popped into my head this morning and now I need to make it happen

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Identify the error correcting code. These cards came with my daughter's new toy

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In reply to @robinhouston

@robinhouston We haven't got any batteries for it yet, so no idea

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In reply to @robinhouston

@robinhouston I think that's exactly what's happening. I wonder if there's any more consideration for which 6

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In reply to @profhelenwilson

@profhelenwilson @intersectarian @El_Timbre @honeypisquared This idea's got legs

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Just licked my phone's screen.
Defence: I'm making brownies

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In reply to @christianp

Current status: whipping eggs with a potato masher.
#selfcatering

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Mixed fractions on an Italian restaurant menu!
I wonder how members of @BTNMathsJam and @PisaMathsJam feel about that

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In reply to @Cshearer41

@Cshearer41 Which one is yellow?

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In reply to @Cshearer41

@Cshearer41 Not distinctly at all for my colourblind eyes!

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In reply to @Cshearer41

@Cshearer41 It's a complicated topic, and hard to act on any advice with felt tips. Standard advice is to use pattern as well as colour, e.g. dots and stripes. I did some work on diagrams recently, with examples at numbas.github.io/numbas-extensi…
(including copies of some of your puzzles!)

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In reply to @Cshearer41

@Cshearer41 Yes, I can almost always do your puzzles. Thanks for making the effort!

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In reply to @honeypisquared

@honeypisquared With that kind of attitude you'll never get to nationals

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In reply to @EminDuman1963

@EminDuman1963 @Cshearer41 Except what looks light to you might look dark to me

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I love how the @glitch code editor highlights all other occurrences of the text you've got selected. Makes it very easy to see where things are used

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Watching my friend's teenage son mow our lawn is like watching the DVD idle graphic

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In reply to @C_J_Smith

@C_J_Smith Solidarity. (no pun intended)

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One day I'll swirl a hot chocolate around a mug without getting it all over myself. Not today though. #dyspraxia

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In reply to @aperfect

@aperfect @thetrainline It's not the trainline's problem, there just isn't an under 5 ticket on LNER. You could book a child ticket

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In reply to @christianp

They did lots of good work making mathematical things, and then I asked them to put together this guidebook in the last couple of weeks.
I hope it'll be useful for staff and students here, and maybe even outside Newcastle.
It could do with more care, but it's passable right now.

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The #3dprinting #math material that my summer students Holly and Alex created is now online at mas.ncl.ac.uk/3dprintguide/

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In reply to @christianp

Finally, that site was created with the same system we use to turn LaTeX course notes into accessible web pages.
Not quite the right tool for the job, but it meant the tool got some much-needed improvements.
It'll be open source... at some point. Not mine to release!

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In reply to @christianp

One of the most important bits is the "things we've made" page - mas.ncl.ac.uk/3dprintguide/i… - with source files and thingiverse links for all the objects they produced.

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In reply to @MouldS

@MouldS very nice Steve but my mug is round, I want a circled circle

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Maths vocab question: when do two variables represent the 'same' value?
Let x be the number of biscuits in my left hand, and y the number of biscuits in my right hand.
If I have two biscuits in each hand, do x and y represent the same value, or are they still different 'things'?

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In reply to @Helen31098957

@Helen31098957 not currently

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In reply to @samholloway

@samholloway But x isn't identically equal to y, right?

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In reply to @agbuckley

@agbuckley @samholloway I very deliberately said two of the same kind of thing. I think there's still a difference between them to be preserved

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In reply to @apgox

@apgox Is that what that is?

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In reply to @christianp

I'll add some context: I was writing about algebraic simplification. I wanted to say that x and y represent different values, so they can't be collected together, e.g. 'x+y" can't be rewritten '2x'. But x and y might *coincidentally* have the same value.

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In reply to @christianp

So how do you describe the 'differentness' of x and y without talking about what they represent? They are different, but in what ways?

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In reply to @elinoroberts

@elinoroberts Oh, now I do too

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In reply to @peterrowlett

@peterrowlett I really feel like we're missing a word.

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In reply to @henryseg

@henryseg are there two misaligned tilings meeting in the middle?

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In reply to @alisonkiddle

@ajk_44 @geogebra what's the bottom half showing?

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In reply to @alisonkiddle

@ajk_44 @geogebra aha!

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I hav com up wit a gre tim sav dev. As wel as rou num to thr sig fig, I hav sta rou all my wor to thr sig let. Wit the spa sav by thi met I can fit muc mor int eac twe, lea roo for ext con, lik thi lov poe:

Ros are red,
Vio are blu,
I lik to go
For a dip in the poo

#3sl

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In reply to @MadMatheMatiker

@MadMatheMatiker @davidwees Only 2% of people can see the colour bluel

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Little L-P is having her second nursery visit today, so I'm working from home. 'Home' is currently a cafe next door to the nursery (what a sap I am).
Anyway, while she's achieving, I'm achieving too: I've made the first step toward a choose-your-own-adventure mode for @NclNumbas.

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Your suggestions of mathematical puzzles that have a few significantly different solution methods, please.
Ideally, ones where seeing a list of possible methods wouldn't constitute a spoiler.

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In reply to @SparksMaths

@SparksMaths Ooh yes, that's just the kind of thing I want!

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I take issue with the use of the words "any" and "any" in that headline twitter.com/Mathematical_A…

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In reply to @kyledevans

@kyledevans @robeastaway @SparksMaths Does the neat observation involve the fact 4=3+1?

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In reply to @DavidB52s

@DavidB52s Someone else sent me that one in a DM. It's lovely, but a bit beyond what I was thinking of. I really just wanted some toy examples to play with in my e-assessment system

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In reply to @JanvierUK

@JanvierUK There'd be all the usual trouble with who in particular in those countries gets the money, and whether conserving the environment means moving people out

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A Smullyan-esque dialogue in this episode of Waffle the Wonder Dog:

Evie: "Now do you understand what yes and no mean?"
Waffle: "Yes!"

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Did you know that @UniofNewcastle acceptance letters come foil-wrapped?
That's because we're part of the Rustle Group of universities.

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In reply to @jamestanton

@jamestanton Do you have anything in exploding dots on treating fractions as two parallel tracks of dots?

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In reply to @ben_nuttall

@ben_nuttall Exceptional!

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What's the smallest name? Can you beat Millicent?

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In reply to @LargeCardinal

@LargeCardinal @FishermansEnemy @standupmaths @aperiodical I saw a very similar mug in @jamesgrime's hands recently. I think he was trying to get them made up for mathsgear.co.uk.
He agreed it's genus 3

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In reply to @blatherwick_sam

@blatherwick_sam Very strong!

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Here's a prototype of a "choose your own adventure" mode for @NclNumbas.
It makes it easy to write explorations where the student can decide what info they want, and you can offer follow-up questions based on what they do.
How would you use this feature?
youtube.com/watch?v=bTTGJD…

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Has anyone seen this before? Looks like flexible quadrilateral-ish pieces that join together. I wonder if it'd be any good for making hyperbolic models

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In reply to @elinoroberts

@elinoroberts Ooh yes please! At work or at home?

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In reply to @samjshah

@samjshah If you want a Fermi problem, I thought of a nice one recently: the number of people who got engaged yesterday

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My body is apparently getting ready for my absurdly early train to #tmip19 tomorrow by waking up at 4:45. Again, that train is *tomorrow*. Stupid brain.

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In reply to @christianp

For the record, it's #TMiP2019.

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Umm.. wow! Haven't seen that in a while.
The bigger problem is: why didn't this PC boot into Linux?

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In reply to @DigitalEd

@DigitalEd An @NclNumbas expert 😉

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In reply to @christianp

Forgot an image description: it's the windows 7 "startup repair" screen

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In reply to @PaulsPrattle

@PaulsPrattle Not if you're a cool guy like me and pull the plug

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In reply to @PaulsPrattle

@PaulsPrattle This is a campus managed PC, and I don't think it's even meant to have windows 7 on it.

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In reply to @Shona_Mu

@Shona_Mu well, yesterday our dog ate the baby's poo out of the potty while she was having her bum wiped, so it could be worse

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Maybe e-assessment is a bad idea. Halfway through this resit exam, I can see that the vast majority of the students are still miles away from passing 😔

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In reply to @eqdynamics

@eqdynamics It's supposed to dual boot

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In reply to @eqdynamics

@eqdynamics this is a campus managed PC, it's working fine, I just accidentally let it boot into windows for the first time in ages

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Eugh.... #TMiP2019

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In reply to @DrSMJames

@DrSMJames @isaacphysics I didn't know you're going! You must be on the train after me

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How is it colder in Peterborough than Newcastle?

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I went the wrong way on the bus. Fortunately, turns out the route is a figure 8, so I'm back where I started and can just stay on.
#ThanksTopology #Thopology

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Guess who doesn't get their name on the website

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In reply to @icecolbeveridge

@icecolbeveridge @ajk_44 I was off math before I was cool

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In reply to @d_yellowlees

@d_yellowlees @stecks OK, you can have (1 - 0.9....) pounds from me any time you like.

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In reply to @d_yellowlees

@d_yellowlees @stecks OK, let's up the ante. You can have a thousand times as much as that.

Actually no, make it a BILLION times as much!

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I've really enjoyed #TMiP2019, meeting fun maths people, and getting loads of ideas.

If you want to practise writing about maths or try out a maths comm idea, the @aperiodical is always open to you.
Get in touch at aperiodical.com/submit/ or email root@aperiodical.com.

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In reply to @d_yellowlees

@d_yellowlees @stecks It's still the same amount, so no, it's not very much

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These houses could be in Newcastle, but they're not, they're in Cambridge.
I wish I knew an architectural historian who could tell me how housebuilding styles spread around the country.
Did architects travel around? Were there journals? Did everything come from London?

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In reply to @christianp

On a related note - pretentious names for housing developments. I thought the fad had subsided, but it seems to be alive and well here.
Near home there are ones called "Horizon" and "Opulence" (🤮)
Is it coming back? What's the fanciest one you've seen?

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In reply to @christianp

PS I'll take a "Quintessence" over pseudogeographical nonsense like "Charmington Mews" any day of the week

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I've got a reputation for holding grudges. That's why they call me

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In reply to @stecks

@stecks Neon Sheep sells these and didn't call them utencils!

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HOW IS PETERBOROUGH SO COLD???

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In reply to @samholloway

@samholloway That seems to be the case!

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Following very serious discussions with @stecks and @k_houston_math at #TMiP2019, I've made a calculator where you can change the order of operations and see what happens: checkmyworking.com/misc/samdob/

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In reply to @BiggestTriangle

@BiggestTriangle @QualityStreetUK The symmetries of an equilateral triangle?

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In reply to @OlafDoschke

@OlafDoschke @stecks @k_houston_math Well, it doesn't do implicit multiplication, so what you really got was '4, 4' in the first case.
And it doesn't allow things to have the same precedence, because I can't think of a simple way of letting you specify that. Any ideas?

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In reply to @OlafDoschke

@OlafDoschke @stecks @k_houston_math Yeah, I wasn't sure if that'd be accessible to kids. I suppose it would

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In reply to @OlafDoschke

@OlafDoschke @stecks @k_houston_math It knows about prefix unary plus and minus

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In reply to @OlafDoschke

@OlafDoschke I need to write some text about how it works. I just wrote what you've seen on a train, and wanted to get it out. The idea is to think about what "order of operations" means. This is one interpretation

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@katemath @TrueSciPhi @evelynjlamb @FryRsquared @mathbabedotorg @monsoon0 @EricaKlarreich @DrEugeniaCheng @extremefriday @math3ma @emilyriehl in the with-men list, I'm at a prime position, but I'm not in the list of actual mathematicians, apparently because I don't have a PhD 🤷

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September

Of all the theorems, 0% of them can be written down, so why do we bother with maths?

Deep within this nest-o'-threads is the question: why do kids spend so much time on factorising quadratics?
Like, they've got to do *something*... twitter.com/HigherGeometer…

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In reply to @extremefriday

@extremefriday You were applying for tenure and you took time out to play in the Math-Off?!

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In reply to @anildash

@anildash I was on a train yesterday so had to make a thing on localhost instead of glitch. It was alright, I suppose...

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Things are dire when you've stirred the tories of Whitley Lodge into action!
#StopTheCoup

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In reply to @SheckyR

@SheckyR @JimPropp "gen is nev und in its own tim" - Bil Wat

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In reply to @math_doc_ron

@math_doc_ron @Noah121Weiss @ProfNoodlearms @virtualcourtney can I get that on a t-shirt?

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In reply to @samholloway

@samholloway @stecks @CoreMathsCat @MoMath1 @ajk_44 YES

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I've just made myself cheese on toast, and now I'll have to live with the consequences.

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Somebody in the Labour Party merchandise team needs a promotion

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In reply to @mathforge

@mathforge @benjamin_leis I'm getting nothing at all, on mobile.

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In reply to @estwebber

@estwebber You know what they say: dress for the title you want, not the title you have

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Time to log off the internet and darn some socks: I just read a comment by a grown-up adult on a serious website saying that they were too young to remember the Spice Girls

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In reply to @MBarany

@MBarany @KroneckerWallis If our interview had been a back and forth, rather than a one-shot, I would've pressed the on that. Happy to update the post if they give names!

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In reply to @MBarany

@MBarany @KroneckerWallis Thank @stecks for that!

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My one-year-old just did a brilliant rendition of the Hey Duggee theme, be a use I couldn't decode repeated shouts of "Bizzo!!!"
#SongsSpeakLouderThanWords

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In reply to @christianp

While we're on the subject, has anyone totted up how many of the non-speaking animals are male, and how many female?

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In reply to @peterrowlett

@peterrowlett All the cool kids are missing it because of their even cooler kids

1 favourite 0 retweets

Oh no, I've deliberately obscured large portions of this ruler and I need to make sure these vegetables are whole numbers of inches long or my toddler will eat me instead: a #RealWorldMaths thread

694 favourites 94 retweets

In reply to @christianp

As you might know, my daughter is both a very fussy eater and a superhero whose superpowers are an unbounded appetite and precisely eyeballing lengths.
Everything she eats needs to be a whole number of inches long (thanks for telling her about inches, grandad!)

56 favourites 1 retweet

In reply to @christianp

When I stand up straight I'm exactly 6'5" tall.
I need to get these measurements exactly right, and I don't want to think about the alternative.

30 favourites 1 retweet

In reply to @christianp

Only the 0, 1, 4 and 6 marks are visible. So I can definitely cut sticks that are 1, 4 and 6 inches long, like this:

29 favourites 1 retweet

In reply to @christianp

But how can I measure 2, 3 or 5 inches?

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In reply to @christianp

Fun maths fact: 2 = 6 - 4. So to make sure something is 2 inches long, I just need to line it up with the 4 and 6 marks.

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In reply to @christianp

I can use some more Advanced Maths Theorems such as 3 = 4 - 1 and 5 = 6 - 1 to measure the two other lengths, like this:

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In reply to @christianp

Rulers with this property - as many distinct lengths as possible for a given number of marks - were investigated by a few people, including Simon Sidon, Wallace Babcock, Sophie Piccard and Solomon Golomb, in the 1930s.

Ready for the punchline?

26 favourites 1 retweet

In reply to @christianp

Hooray, all the food is the right length and I will live to see another meal time!

But have you noticed that there are 4 × 3 ÷ 2 = 6 ways of picking two marks from 4? So this ruler gives me as many different lengths as it possibly can!

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In reply to @christianp

If you find that hard to believe, like I do, you can read a proof on Justin Colannino's page about Golomb rulers: cgm.cs.mcgill.ca/~athens/cs507/…
It's full of facts about all sorts of fruity variants on the setup, like circular rulers and modular rulers.

23 favourites 2 retweets

In reply to @christianp

This is the best you can do!

There's no ruler with more than four whole-number marks that can measure every possible length up to the distance between the lowest and highest mark.

That's a lemma, a theorem, and a stone cold fact.

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In reply to @christianp

If you're relaxed about measuring *every* length and just want a ruler that measures more different lengths than any other, nobody knows a formula for making one!

At the moment, we know the best rulers for up to 27 marks. After that it's all conjecture.

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In reply to @christianp

And if you were keen to get involved with the burgeoning field of Ruler Maths but are sad that it's been entirely resolved, take heart: there's still something we don't know and that you can help with!

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In reply to @christianp

To take part in the OGR project (distributed.net/OGR) you just need to run a little program on your computer. It'll churn away, looking for rulers that do as well as they can, even though we already know they're not going to be perfect.
And isn't that all you can ask for?

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In reply to @christianp

So you can either sit down and do some hard thinking and come up with a formula, or you can join the distributed effort to check ever bigger rulers using computers.

(One of these is easier than the other)

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In reply to @christianp

End of thread!

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This thread was inspired by #TMiP2019 twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @thepetitioner

@thepetitioner @ImmyKaur @honeypisquared Thanks for this comment. I tried my best to make it clear I wasn't presenting either a realistic situation or a sensible solution: it's all a frame to present this nice bit of pretty abstract maths.
I consider it part of the 'symphony' you're talking about.

3 favourites 0 retweets

Best take so far twitter.com/TeamSolid14/st…

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In reply to @callmemeowskr

@callmemeowskr If you don't like maths, you're not going to like the answer

1 favourite 0 retweets

In reply to @I8icecream

@I8icecream @tweetsauce I wish!

5 favourites 0 retweets

In reply to @matheknitician

@matheknitician I do now!

1 favourite 0 retweets

In reply to @legibleredeem9

@tinysepticfan @tweetsauce Yes, but there are rulers with that many marks that can measure even more different lengths.
This is the idea: suppose that making marks in rulers is really, really expensive. What's the best value you can get by creatively using a limited number of marks?

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In reply to @legibleredeem9

@tinysepticfan @tweetsauce With more marks, you can make a ruler that measures lots of different lengths, but there'll always be some lengths you can measure in more than one way, so there's in a sense some wastage.

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In reply to @FryRsquared

@FryRsquared Who am I supposed to be listening to, Petr or you?

5 favourites 0 retweets

In reply to @robeastaway

@robeastaway Fancy doing anything with the @aperiodical?

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In reply to @robeastaway

@robeastaway @aperiodical give us something to have a go at doing on the back of an envelope? Field some approximation questions from the audience?

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In reply to @BarneyMT1

@BarneyMT1 Soon the whole imperial system will be back - you give an inch, they'll take a mile

2 favourites 0 retweets

In reply to @Trudgeteacher

@Trudgeteacher Pedantry is not one of her superpowers (it runs in the maternal line)

1 favourite 0 retweets

Hello dragons, thanks for inviting me today. I'm here to pitch my new range of sportswear for mathematicians, "Left As An Exercise".
I'm looking for £100k for a non-measurable subset of the business, which I believe we can double within a year.

16 favourites 1 retweet

In reply to @KAPBOXM

@KAPBOXM you have significantly fewer problems in your life

1 favourite 0 retweets

In reply to @pwr2dppl

@pwr2dppl It feels so weird seeing the union flag being waved by people protesting colonisation

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In reply to @icecolbeveridge

@icecolbeveridge To be fair, this is how most episodes of Grand Designs start

1 favourite 0 retweets

Let a(1) = 1.
Define a(n) = a(n-1) + n^k, where k is the lowest positive integer such that a(n-1)+n^k has more decimal digits than a(n-1).

Is it always true that a(n) has n digits?

0 favourites 1 retweet

This inspired me to make Columbus cubes for the first time. Nice! twitter.com/WilkinsonAndy/…

1 favourite 0 retweets

Some real world maths happening in the L-P household today: tiny one is potty training, but still needs a nappy overnight. Do we buy just a few disposable nappies, or is it better to buy some expensive reusable ones? Need to estimate how long we'll need them, and price per night

0 favourites 0 retweets

In reply to @carolspringett5

@carolspringett5 Disposables because we couldn't stomach constantly washing poo out of reusables

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In reply to @CNUMathDept

@CNUMathDept

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In reply to @miclugo

@miclugo @icecolbeveridge More accurate math does not give that answer.
Python can handle very long integers without any intervention

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There's some significant Weather hanging above Newcastle at the moment!

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In reply to @HigherGeometer

@HigherGeometer I hate filling in that kind of form. Always good to think about why the question exists and what they're going to do with the answer you give - provide support to you, plan organisation of the department, something else?

1 favourite 0 retweets

In reply to @HigherGeometer

@HigherGeometer Best to ask your line manager.

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In reply to @theclairodactyl

@theclairodactyl @curvahedra YES

1 favourite 0 retweets

In reply to @Skippa23

@Skippa23 @lyd_w @hannahksackett @neillcameron @Inkpots1 @DundeeComicsCS @Comicsyouth

3 favourites 1 retweet

This is how grownups move things around, right?

9 favourites 1 retweet

In reply to @christianp

Whoops, just outed myself as wearing a jumper in Newcastle in September.

Geordie privileges: revoked

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Just published a new thing to thingiverse: the Seven Triples puzzle thingiverse.com/thing:3856293

4 favourites 2 retweets

I'm doing some artistic thinking because I've got to fill a bunch of picture frames in the department in a hurry.
Ignoring the colours, which of these do you like the most?
(1/2)

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In reply to @christianp

... and here are some more.
(2/2)

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In reply to @samholloway

@samholloway the awkward handshakes!

2 favourites 0 retweets

In reply to @johndavidread

@johndavidread How did I forget that masterpiece?

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @BBCNewsround Men have a height advantage - slightly closer to the stars

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A spot of pre-bed OEISing informs me that the sequence n*2^n follows Benford's Law (without proof)
oeis.org/A036289

2 favourites 1 retweet

@ladydpw Yeeeeeeeeesss!

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In reply to @jjsanderson

@jjsanderson 👶

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In reply to @teafairy79

@teafairy79 @Just_Maths @Hermesparcels There have been plenty in this genre. I wrote this in 2014: aperiodical.com/2014/11/appare…

6 favourites 2 retweets

In reply to @reflectivemaths

@reflectivemaths Yes - here at Newcastle, only FX-83 or FX-85 are allowed in exams. Students of course use cutting-edge computing resources outside exams, but that's probably not germane

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In reply to @kyledevans

@kyledevans @BBCMoreOrLess My mum said "there was a very good maths comedian on More or Less", but couldn't remember your name. So there's a review

1 favourite 0 retweets

In reply to @lunasorcery

@lunasorcery I sense a big @MathsJam talk

1 favourite 0 retweets

Ideas to use up the end of this spool of filament?

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In reply to @christianp

Art* is going on walls!
On the right is one of the Truchet pieces I shared above, and the other is made up of handwriting samples I gathered from colleagues. It feels good to finally put something out with this!

6 favourites 1 retweet

In reply to @christianp

Here's a closeup of the handwriting one. I wandered round @NCLMathsStats knocking on doors, asking people to write some mathematical notation. It was fascinating seeing the different symbols and conventions used in different disciplines.
What can you spot in this snippet?

6 favourites 2 retweets

In reply to @christianp

My idea was to have something that gives you an idea of notation used by mathematicians, but better than the 'cumulonumbers' nonsense you normally get.
There's just enough coherence to identify subdisciplines, but I didn't worry about keeping whole formulas intact

1 favourite 0 retweets

In reply to @christianp

To make this, I took photos of all the handwriting samples, then used inkscape to convert them to vector images. I separated out individual characters, then wrote code to lay out characters along line segments making up a hexagonal tiling.

3 favourites 0 retweets

In reply to @christianp

I wanted it to have a dark background so it would look like writing on a blackboard, but I was told I can't print a 99% black page at A0

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In reply to @christianp

Everyone loves talking about the subject they're interested in, and maths is a truly enormous subject!

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In reply to @christianp

Eventually, I want to put the original handwriting samples on the school website, along with links to the authors' homepages and short explanations of what they're about.
I learnt a lot about what my colleagues do just by asking them to write a line or two of maths!

3 favourites 0 retweets

Behold, the squircle-oid!
This is the shape defined by the equation
(x/2)⁴ + y⁴ + z⁴ ≤ 1
I made it as part of a set of props for explaining Lᵖ norms. p=2 gives an ellipsoid, and in the limit p → ∞ you get a cuboid.

14 favourites 3 retweets

In reply to @christianp

... I mean inequality, not equation. Don't @ me

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In reply to @christianp

it's available on thingiverse at thingiverse.com/thing:3866307

1 favourite 0 retweets

In reply to @christianp

Another one. Here, flocks of arrowheads are tracing out the Herschel graph.
The Herschel graph is something I keep returning to, because our building is named after its inventor.

1 favourite 0 retweets

In reply to @christianp

There's an easy proof of this: you can colour the vertices red and blue so that no vertices joined by an edge are the same colour, and there are an odd number of vertices.
So any lap visiting each vertex once has to end on a different colour to the start.

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In reply to @christianp

It's the smallest non-Hamiltonian polyhedral graph - you can't draw a path on it which visits each vertex exactly once, and it corresponds to a polyhedron.
There's no such thing as a "lap" of this graph which doesn't cross itself somewhere.

1 favourite 0 retweets

In reply to @christianp

Here's an image showing the colouring property, by David Eppstein. If you start on blue, you have to finish on red, and vice versa.

1 favourite 0 retweets

In reply to @christianp

How do you convey non-hamiltonianicity? I've got flocks of boids endlessly trying to trace out the graph. They're chasing (invisible) rabbits which are randomly walking the graph.

0 favourites 0 retweets

In reply to @jjaron

@jjaron I've never visited, but from what I'd seen of it elsewhere I'd always assumed that was the case, at least in attitude

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @sxpmaths why pick a separate Z, and not replace {A, B} with {B, A*B}, or similar?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @sxpmaths I like this puzzle. I feel like you should be able to get all algebraic numbers, but haven't worked out how yet

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA if we're talking about the original problem where all the real numbers are dressed up, you can defo find all the rationals in finite time. It takes 2*max(m,n) moves to find m/n, when m and n are coprime.

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I've done this twitter.com/familylife1822…

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Just heard the words 'algebraic geometry' on @BBC6Music!

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It's 12:12 on 19/9/19. Warm fuzzy feelings

1 favourite 0 retweets

They're not allowed to be in the same place at once! Can the world cope with that much concentrated maths fun? twitter.com/IMAmaths/statu…

14 favourites 2 retweets

In reply to @robeastaway

@robeastaway @WestminsterUS I like it!

0 favourites 0 retweets

Bing makes more sense when you realise it's The Good Place for babies.

Bing: Eleanor
Flop: Michael
Pando: Jason
Coco: Tahani
Sula: the other Eleanor

3 favourites 0 retweets

The colourblind lottery

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The one year old thinks Untitled Goose Game is a HOOT

1 favourite 0 retweets

In reply to @christianp

Unintended Goose Pun

1 favourite 0 retweets

I've made a game of @DavidKButlerUoA's "Number dress-up party" puzzle:
number-party.glitch.me
All the numbers have come to a party in fancy dress. Which numbers can you correctly identify?

10 favourites 2 retweets

In reply to @honeypisquared

@honeypisquared @statto or you're now under a terrible curse 🤷

2 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 I never knew long division until polynomial long division at A-Level. Still don't use it for arithmetic.

1 favourite 0 retweets

In reply to @MathsTechnology

@MathsTechnology @ajk_44 which one?

0 favourites 0 retweets

In reply to @jgrahamc

@jgrahamc I had the same thought on reading that quote!
Are we the most populated island with the closest neighbours? Not sure how to quantify that.

0 favourites 0 retweets

In reply to @LizahvdAart

@LizahvdA Specifically in Newcastle, or nearby? Because there's Keel Row books in North Shields and Barter Books in Alnwick

3 favourites 0 retweets

In reply to @NewcastleData

@digitalinst @UniofNewcastle How was this event advertised? I would've liked to attend!

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson @stecks @biglesp @simonmonk2 @nostarch dress for the experiment you want to be doing, not the experiment you are doing

2 favourites 0 retweets

In reply to @anildash

@anildash @glitch For an instant I thought this thread would contain a revelation that 'glitch' is a really obscure portmanteau involving the word 'ichthus'. No such luck.

0 favourites 0 retweets

In reply to @evelynjlamb

@evelynjlamb @yenergy I'm currently trying to work out if you're both talking about garden peas, or that weird American legume that you also call peas.
(in other news, Mrs L-P made me stop feeding the little L-P frozen peas because apparently uncooked they give you a bad tummy)

1 favourite 0 retweets

In reply to @ptwiddle

@ptwiddle @evelynjlamb @yenergy Yes, it's rice and peas I was thinking of!

2 favourites 0 retweets

In reply to @benjamin_leis

@benjamin_leis I have a bot on Mastodon that toots a Dudeney puzzle each day: mathstodon.xyz/@dudeney_puzzl…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Glad to oblige! And thanks again for playing in the #mathoff.
(PS pics or it didn't happen)

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge Thanks, Captain Hashtag!

0 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees @NCLBusiness When I visited Pretoria Uni, they showed me their 600-seater lecture halls. I half expected to see a t-shirt cannon.

2 favourites 0 retweets

In reply to @lisafishburn79

@lisafishburn79 @GraemeBoxwell @CanvasLms @UniofNewcastle @Instructure Yesssssssss

2 favourites 0 retweets

In reply to @AndrewM_Webb

@AndrewM_Webb @ZoeLGriffiths did a brilliant video on this puzzle for last year's #BigMathOff: youtu.be/NyL0ws-65aQ (contains a solution)

2 favourites 0 retweets

In reply to @lisafishburn79

@lisafishburn79 @GraemeBoxwell @CanvasLms @UniofNewcastle @Instructure I mean, it was only my preferred option of a list that didn't include moodle, but certainly better than the others

0 favourites 0 retweets

In reply to @apgox

@apgox @wtgowers Don't tell anyone, but we have several boxes in the stationery cupboard at work. Weirdly, nobody has taken them in the years they've been there.

0 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees @NCLBusiness Zoinks!

1 favourite 0 retweets

Just you try and Simpson's Paradox your way out of this!
I'm skeptical of a satisfaction rating that's higher than the punctuality stat twitter.com/metroapologise…

3 favourites 2 retweets

In reply to @MadMatheMatiker

@MadMatheMatiker That's the most obvious explanation

0 favourites 0 retweets

Morpeth, morproblems

3 favourites 0 retweets

In reply to @samholloway

@samholloway No idea, it's the missus who's going

0 favourites 0 retweets

I've just found my favourite gif.

8 favourites 0 retweets

have you seen the weather though twitter.com/OrdnanceSurvey…

3 favourites 0 retweets

In reply to @christianp

Oh alright then

3 favourites 0 retweets

I hereby announce this shop is clopen!

16 favourites 0 retweets

In reply to @robeastaway

@robeastaway @kyledevans The focus group is headed by Tester Rantzen

0 favourites 0 retweets

October

In reply to @funnymaths

@funnymaths

1 favourite 0 retweets

Trying to remember the name of that boxer with the posh accent and the lisp and all I can come up with is "Shemley Bemley"

0 favourites 0 retweets

In reply to @christianp

Crispian Quiver

0 favourites 0 retweets

In reply to @christianp

Stephen Biff

0 favourites 0 retweets

In reply to @christianp

Heavyweight champion of the world, Porto Delightful

0 favourites 0 retweets

In reply to @christianp

Returning to defend all three of his belts, Shawap Balapalap

0 favourites 0 retweets

In reply to @christianp

Signalling for medical attention, Octavius Barmcake

0 favourites 0 retweets

In reply to @theclairodactyl

@theclairodactyl Yes!!!

0 favourites 0 retweets

In reply to @UniofNewcastle

@UniofNewcastle oh cripes, is that today?!

0 favourites 0 retweets

In reply to @UniofNewcastle

@UniofNewcastle and I'm supposed to be speaking at 12!

2 favourites 0 retweets

In reply to @alisonkiddle

@ajk_44 happy birth-and-a-half day!

2 favourites 0 retweets

I've just discovered The Paper Puzzle Book, by Ilan Garibi, David Goodman and Yossi Elran.
worldscientific.com/worldscibooks/…
Looks like it's full of good puzzles to do with folding and cutting paper

7 favourites 1 retweet

Just fell foul of this quintessentially PHP nonsense: the DateTime->add method not only returns a DateTime object with the resulting time, it modifies the original DateTime.
php.net/manual/en/date…

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett does he know the "let's count back in Ns from 10N" song?

0 favourites 0 retweets

In reply to @statto

@statto GIF: dude tapping his head and smiling

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Let's count back in 1s from 10,
Cock-a-doodle-doodle-doo!
10, 9, 8 and 7
Cock-a-doodle-doodle-doo!
6,5,4 and 3
Cock-a-doodle-doodle-doo!
2 and 1 and don't forget the zero
Cock-a-doodle-doodle-doo!
(Increment N; GOTO start)

3 favourites 0 retweets

There are buses driving round Newcastle still with adverts on the side for that Men In Black film that came out in June.
#NorthernPowerhouse

1 favourite 0 retweets

Have I switched to the good timeline where puzzle enthusiasts rule the world?

5 favourites 0 retweets

In reply to @benorlin

@benorlin Nilpotent, because a) how it sounds, and b) every time I look up what it means, I forget again immediately

13 favourites 1 retweet

In reply to @evelynjlamb

@evelynjlamb @benorlin Was I that friend? I rarely pass up an opportunity to link to that song (ollraight!)

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA {2,5,7,13,32,45}?

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA That was the plan

1 favourite 0 retweets

In reply to @DavidOlusoga

@DavidOlusoga Have you seen the plaque in Tynemouth to commemorate the time Garibaldi passed through on a boat or something? So even ignoring all those connections, the bar is low!

2 favourites 0 retweets

In reply to @ptwiddle

@ptwiddle @tjohnhos @ColinTheMathmo mathstodon.xyz is still chugging along, slowly growing

1 favourite 0 retweets

Mastodon's no. 1 selling point t.co/vTXKyp4ldI

0 favourites 0 retweets

In reply to @mayhematics

@mayhematics @CardColm In Newcastle, there's one for George Stephenson outside the train station - co-curate.ncl.ac.uk/stephenson-mem… - and one to Lord Armstrong near the uni co-curate.ncl.ac.uk/armstrong-memo…

0 favourites 1 retweet

In reply to @mathsjem

@mathsjem What a long week this has been - I'd forgotten I'd made that!

1 favourite 0 retweets

In reply to @alexbellos

@alexbellos @ch4rleston I've made an interactive version using @glitch at coins-out-of-the-bank.glitch.me

10 favourites 2 retweets

In reply to @RobJLow

@RobJLow @gregeganSF It's safer to say "always wear a high vis" than "put a high vis on when it gets dark"

2 favourites 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths Takeaways: the delivery driver just left two minutes ago

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared I don't even know where to begin with @stecks.
*gestures at basically every maths comms thing that's happened in the last decade*

4 favourites 0 retweets

I think I've just about got a handle on how @MathJax v3 works.
The API needs a *lot* of documentation.

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow @MathJax I thought there would be, but there aren't! The config is in a slightly different format, but there's a tool to convert your old one: mathjax.github.io/MathJax-demos-…
Other than that, you just change the address of the script and you're done

0 favourites 0 retweets

In reply to @SirWaffle2

@SirWaffle2 it's shy

2 favourites 0 retweets

Just walked back from the local shops with my Nana in a small box under my arm.
Second freakiest experience of my life so far.

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When you rewrite an entire file and @github picks out a single line of whitespace as unchanged.

#YouTried

3 favourites 0 retweets

Mathematical WordPress users: today I updated the Simple MathJax plugin to support @MathJax v3: wordpress.org/plugins/simple…
Getting the latest maths typesetting is as easy as picking version 3 from the settings page!

4 favourites 1 retweet

In reply to @benjamin_leis

@benjamin_leis @MathJax You're not, and the difference is that v3 is a lot faster. See docs.mathjax.org/en/latest/upgr…

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @EmporiumMaths Yes, if kids are going to see it, please use representatively sampled random names, and avoid just using names of people you know

1 favourite 0 retweets

I didn't know that Philip Glass had composed a piece of music for Sesame Street, and its about geometry!
m.youtube.com/watch?v=19hRQf…

20 favourites 10 retweets

Writing code in Ruby is really making me appreciate Python

3 favourites 0 retweets

Following the trend of indecipherable tech abbreviations such as a11y and i18n, and in line with my ambition to have The World's Most Awkward Name, I'm going to start writing my surname as L5-6t.

1 favourite 0 retweets

I'm testing something with a screen reader on linux, which means I'm using Orca. God help me. At least it works in firefox (finally!), but I can't work out how to get Orca to read out its own help page!

0 favourites 0 retweets

In reply to @CBeebiesHQ

@CBeebiesHQ Is this an attitude to maths that cbeebies encourages?

9 favourites 0 retweets

In reply to @PaulsPrattle

@PaulsPrattle Ubuntu 16.04's default one. Don't blame me, blame my IT people

0 favourites 0 retweets

In reply to @CBeebiesHQ

@CBeebiesHQ try a bit harder, please!

1 favourite 0 retweets

One million hours is 114 years and 28 days (plus or minus a leap year).
All of the 100 oldest women ever reached a million hours, but only 7 of the oldest men ever.
Fascinating!

2 favourites 1 retweet

In reply to @benjamin_leis

@benjamin_leis @MathJax Can you give me a URL?

0 favourites 0 retweets

I've made a new thing. I've called it "The Homologist's Nightmare".
homologists-nightmare.glitch.me

9 favourites 1 retweet

In reply to @robeastaway

@robeastaway @simonmayo it's got absolutely nothing else to recommend it, but will you accept 'ocho' instead of 'eight' in this song? youtube.com/watch?v=0S3foI…

0 favourites 0 retweets

Just discovered that guards on Royal Mail coaches used to be armed with blunderbusses (postalmuseum.org/blog/arming-th…)
Time for that gritty Postman Pat reboot

1 favourite 0 retweets

In reply to @krismicinski

@krismicinski @owenarden unicodeit.net is very good for that. If you don't know the latex command, there's shapecatcher.com

2 favourites 1 retweet

In reply to @honeypisquared

@honeypisquared if literally anyone had been paying for the #BigMathOff to happen, this'd be the kind of impact they'd like to hear about

3 favourites 0 retweets

In reply to @statto

@statto you live in Slough, don't you? Can you recommend somewhere for dinner tonight?

0 favourites 0 retweets

In reply to @statto

@statto So nothing's changed! Thanks

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall Condolences. I'm at the memorial service for my Nana today.

1 favourite 0 retweets

In reply to @TanDhesi

@TanDhesi thank you so much for coming to my Nana's memorial service today, especially at what must be a very busy time!

4 favourites 1 retweet

In reply to @northumbriana

@northumbriana It's got to be Oesch's die Dritten for me youtu.be/SvP-Jen_AgM

0 favourites 0 retweets

In reply to @wtgowers

@wtgowers @johncarlosbaez And now I get the joke! Never would've got there on my own

3 favourites 0 retweets

I mean honestly

14 favourites 4 retweets

Try to clear your mind and answer this as quickly as possible:

In a certain tower block, half the flats have a single occupant, and half have two. How many flatmates does the average person in the tower have?

25 favourites 10 retweets

In reply to @helenarney

@helenarney You may keep your nerd badge!

That decimal though - once a physicist, always a physicist.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge *whoosh*

there's a bit of knackered LaTeX around "Honestly, can’t anyone do basic arithmetic?"

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett The power of positive thinking!

2 favourites 0 retweets

In reply to @statto

@statto Might spammers just start stripping these plus-suffixes out, to cover their tracks?

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston there is an anagram of 12345678 whose square is an anagram of 1122334455667788

1 favourite 0 retweets

We're scratching our heads about a line in a student's work: "This is a scalar quantity, so can't be negative." Is this a different definition that they could've been taught at school, like how some teachers define "whole numbers" to be positive?

6 favourites 2 retweets

In reply to @christianp

(I'm not ready to have another argument about whether whole numbers are always positive, by the way)

1 favourite 1 retweet

In reply to @samholloway

@samholloway yeah, I think that's it, but if they've been taught that then we need to make sure to teach the whole class our definition

2 favourites 0 retweets

In reply to @geomathsblog

@geomathsblog @ColinTheMathmo @alexbellos What are the two options for three dots?

0 favourites 0 retweets

In reply to @geomathsblog

@geomathsblog @ColinTheMathmo @alexbellos I thought that three collinear points was disallowed in the original puzzle, but it seems not!

0 favourites 0 retweets

The bio on the parody account @BoJoNum10 just made me do a big cathartic chuckle

1 favourite 0 retweets

In reply to @JimPropp

@JimPropp 😱

0 favourites 0 retweets

Just using my colourblind app to help me appreciate the beauty of autumn leaves 👍😎👍

42 favourites 3 retweets

There's esprit d'escalier, and then there's thinking of new ways to deface the "Vote Conservative" sticker your teacher put in her office window twenty years ago

2 favourites 0 retweets

In reply to @WAWoloszyn

@WAWoloszyn I think it just has a dictionary mapping colour values to names

1 favourite 0 retweets

I've just realised that since everything went digital, we now send each other numbers instead of letters

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans Mine stayed up late of her own accord. Can't believe my luck

1 favourite 0 retweets

An dyspraxic, can confirm the thaMographe is much easier to use than a pair of compasses twitter.com/thamographe/st…

1 favourite 0 retweets

Somebody has just bought a print of my t-shirt design with the Dudeney dudes: redbubble.com/people/christi…
I'd forgotten I did that!

4 favourites 0 retweets

In reply to @DrCaroSummers

@DrCaroSummers @germanatleeds I'd love to know what's in the cybernetics one

0 favourites 0 retweets

I've made a new 3d-printed puzzle: the Hexiamond lantern

thingiverse.com/thing:3944186

10 favourites 0 retweets

In reply to @VickyMaths1729

@VickyMaths1729 @OxUniMaths @NorthumbriaUni I'm in Newcastle! How long will you be up for?

1 favourite 0 retweets

In reply to @extremefriday

@extremefriday Welcome to the club!

0 favourites 0 retweets

November

In reply to @funnymaths

@funnymaths

0 favourites 0 retweets

You really get an appreciation for the noncommutativity of 3d rotations when you've pulled a muscle in your lower back.

5 favourites 0 retweets

In reply to @walkingrandomly

@walkingrandomly Life hack: just use an HTML img tag

3 favourites 0 retweets

In reply to @christianp

@walkingrandomly Sorry, this was a very neckbeardy way of saying: since you can use HTML inline in markdown, and end up with the same result, I find it easiest to remember only the html and not bother with markdown's awkward syntax for images

3 favourites 0 retweets

In reply to @panlepan

@panlepan @aperiodical Wow, did that just arrive?

0 favourites 0 retweets

In reply to @panlepan

@panlepan @aperiodical Ah! It still took way longer than the others. Glad you finally got it!

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared @AJMagicMessage @maths_week I did a maths wee once. Perfect parabola.

5 favourites 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths If it's not imperative that someone does choose 1 or 25, I'd live with the ambiguity.

2 favourites 0 retweets

In reply to @TeaKayB

@TeaKayB will you have time to pop into @NCLMathsStats?

0 favourites 0 retweets

In reply to @TeaKayB

@TeaKayB @NCLMathsStats is this the enigma machine that's been in the discovery museum?

0 favourites 0 retweets

In reply to @TeaKayB

@TeaKayB @NCLMathsStats On facebook @jjsanderson said he's organising something to be delivered in December that would benefit from an Enigma machine

1 favourite 0 retweets

All these people on #TeamTrees didn't think about my colourblind self having to find my dog's poo in the leaf litter, did they?
What I'm saying is, there are pros and cons

1 favourite 3 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi Whoops! I've manually set the featured image to the photo of the pieces. Try again

2 favourites 0 retweets

In reply to @MathsJam

@MathsJam This month?! In my head it's in December and that's ages away! Eep

2 favourites 0 retweets

In reply to @TeaKayB

@TeaKayB @icecolbeveridge City library! There are sockets! Fairly sure you can get into the university library too, if you ask

1 favourite 0 retweets

In reply to @Raspberry_Pi

@Raspberry_Pi I've already built a Pi-powered voice-activated toy horse that does maths, so I can't really see where I could go from there

1 favourite 0 retweets

In reply to @AndrewM_Webb

@AndrewM_Webb @InertialObservr @LucasVB @Quantensalat I finally got the hang of blender this summer. Once you make your peace with the fact that almost everything is done with keyboard shortcuts that don't appear on screen, you can make headway.

4 favourites 0 retweets

In reply to @AndrewM_Webb

@AndrewM_Webb @InertialObservr @LucasVB @Quantensalat The official tutorials for the latest version are decent: youtube.com/playlist?list=…
I did a lot of googling to get my head round the *many* concepts involved. Sadly, the text-based documentation is still very hard to follow

2 favourites 0 retweets

I've improved the logging for the @NclNumbas app at Newcastle, and I wish I hadn't.
I now realise I didn't want to know how many students are looking over their homework feedback at 1am.

3 favourites 0 retweets

I wish @TweetsofCushing was still reviewing integer sequences, because I have things to say about oeis.org/A255165

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans You need to specify which century

0 favourites 0 retweets

In reply to @kyledevans

@kyledevans There's no leap year in years that are multiples of 100 but not 400.

0 favourites 0 retweets

In reply to @christianp

@kyledevans Oh, now I see what you mean. An affected year wouldn't be a prime! Doh

4 favourites 0 retweets

In reply to @robinhouston

@robinhouston Ooh, I've definitely seen a few. Can't think of any names at the moment though

0 favourites 0 retweets

The mum in this story only got 8 weeks' paid leave. The dad got a semester, which I think is around 15 weeks, also no great shakes. America is, in many ways, a terrible place. twitter.com/amermathsoc/st…

5 favourites 1 retweet

Just realised it's only a fortnight until big @MathsJam!
So my 'get the talk done with plenty of time to spare' plan is out the window

4 favourites 0 retweets

In reply to @LukeD1uk

@LukeD1uk @DougCollinsUX I have protanopia, like 1.3% of men, and I can't distinguish red and green lights like these at all. Do you think colour blind people just see different colours?

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Here's my go:
ln is monotonic increasing on its domain, the positive numbers.
At x=1, we have ln(1)+ln(2) = ln(2).
So 0<x<1.

1 favourite 0 retweets

Do any of my @NCLMathsStats colleagues also grind their teeth when @My_Metro announces that "no trains will be running in both directions"?

4 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Yeah. And I think this is less clear than the ln(x)+ln(x+1) = ln(x*(x+1)) solution, because I got x=1 by inspection.

1 favourite 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU and when I moved up to G recently, I was surprised to learn that didn't include the compulsory 20 minute lunch break, which they factored into my part-time calculation to reduce my pay even further.

1 favourite 0 retweets

In reply to @christianp

@NewcastleUniUCU I had to make a statement of the form "I work 8 hours per day not including the 20 minute lunch break" to get my contract to say 0.8 FTE. It wouldn't have even been a question if I worked full time.

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared a million questions about diagrams and people with motor or vision impairments

0 favourites 0 retweets

In reply to @helenarney

@helenarney @standupmaths @MouldS @FOTSN @jondharvey Is there finally going to be a jingle to get the Extra Time For Questions tune out of my head?

1 favourite 0 retweets

In reply to @erinleeryan

@erinleeryan @divbyzero @aperiodical good point. I've removed it from the @aperiodical article.

4 favourites 0 retweets

In reply to @christianp

@erinleeryan @divbyzero @aperiodical and made a pull request to remove it github.com/mscroggs/realh…

4 favourites 0 retweets

In reply to @jjaron

@jjaron I can believe that.

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful How many can I do? read.somethingorotherwhatever.com/collection/fun…

1 favourite 0 retweets

Attention @FryRsquared and other fellow devoted orange clothoid-peelers: did you know ornamental orange peeling is a thing? I didn't until now!
publicdomainreview.org/collections/th…

9 favourites 1 retweet

In case you were wondering, it looks like it's still shorts weather in Newcastle.

But it also seems to be 'start on the tabs before your voice has even broken' weather, so maybe don't look to geordies for health advice

2 favourites 0 retweets

I love the whimsical names that @glitch automatically gives to projects, but I wanted them to feel a bit more like home. So, I combined their word list with a list of British placenames from @OrdnanceSurvey to make automatic-namesby.glitch.me

13 favourites 2 retweets

In reply to @d_yellowlees

@d_yellowlees how should I respond or how do I respond? Because the answer to one of those involves a theatrical eyeroll

3 favourites 0 retweets

In reply to @christianp

@glitch @OrdnanceSurvey PS incident-counter.glitch.me/wasted-work-ti…

2 favourites 0 retweets

Ooh, I'm going to have to play around with zine-machine.glitch.me

0 favourites 0 retweets

That's @GwoMaths twitter.com/hollymathnerd/…

0 favourites 1 retweet

In reply to @d_yellowlees

@d_yellowlees The dog has offered to help but I think she's getting more out of it than I am

2 favourites 0 retweets

In reply to @AnonMathMom

@AnonMathMom we're at the stage where we often have the opposite problem: either a toddler or a dog gets on the scene to 'help' clean up whatever excreta before I've had a chance to get cleaning products

1 favourite 0 retweets

Email from the Labour party asking me to donate £6, £7 or £12. I wonder how they picked those numbers. I'd be surprised if they weren't linked to my previous donations. Has anyone else had the same email, with different numbers? (Subject line is "Winning")

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @stecks you say pseudorhombicuboctahedron, I hear youtube.com/watch?v=-VsmF9…

2 favourites 0 retweets

Phew, my big #MathsJam talk is written!

3 favourites 0 retweets

I know it's meant to be a joke, but this paper tantrum form might be pretty great for autistic people: knockknockstuff.com/collections/no…

0 favourites 0 retweets

I've had a brilliant maths outreach idea but I don't know how to make it happen.
@Beamish_Museum could have a day where you have to pay for everything in old money. They'd convert pounds, shillings and pence at the door, and it'd be bedlam as nobody can make the right change

7 favourites 1 retweet

In reply to @samholloway

@samholloway @Beamish_Museum "you can hurl it at us from the doorway if you'd like"

2 favourites 0 retweets

In reply to @PaulsPrattle

@PaulsPrattle @samholloway @Beamish_Museum Have I got the website for you! cashrailway.co.uk/index.htm

2 favourites 0 retweets

@koszuldude @eschatom Yes. Very. The median income is £23k

0 favourites 0 retweets

Looking at this again, "Dame Dr. Mary Cartwright" vs "Professor Sir @wtgowers" has made me unsure about the ordering of titles. With degrees swapped, would it be "Professor Dame Mary Cartwright", or "Sir Dr. Timothy Gowers"? twitter.com/Daily_Epsilon/…

4 favourites 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor There's no way those dice are fair.

0 favourites 0 retweets

Maths pals: Geomag is currently in amazon's black Friday sale

2 favourites 0 retweets

So when I'm 71 I'll be the same age as my dog, and then she'll start getting younger than me. twitter.com/newscientist/s…

3 favourites 1 retweet

In reply to @christianp

Are 104 labradors enough to fit an exponential model to two sig figs? I mean, they're doubtless all good dogs, but think about the error barks

1 favourite 0 retweets

In reply to @christianp

A log-linear model is more appropriate for cat-egorical data

3 favourites 0 retweets

In reply to @christianp

I wonder if dog age is a long-tailed distribution

3 favourites 1 retweet

In reply to @matheknitician

@matheknitician @mscroggs @bluecombats I was going to ask if anyone wants to go for a drive to somewhere nicer

0 favourites 0 retweets

STONE. COLD. LEGEND. twitter.com/lslothuus/stat…

2 favourites 1 retweet

In reply to @SolidarityShark

@SolidarityShark if it's not rude to ask, what kind of shark are you? Because Greenland sharks can live to 500 and I'm worried how you'll fare with a DC pension

0 favourites 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU @NCLBusiness I was planning on going there today but there was no sign in sheet for it in the office. I'll go tomorrow

0 favourites 0 retweets

Science is the study of what's true.
Mathematics is the study of what can be true.
Discuss, please.

4 favourites 1 retweet

In reply to @HoeflerCo

@HoeflerCo Well, you can come up with mutually contradictory but internally consistent universe of mathematics, so I don't think I agree with that definition

0 favourites 0 retweets

Every time we get a delivery from a Yodel van
youtu.be/SvP-Jen_AgM

0 favourites 1 retweet

In reply to @NewcastleUniUCU

@NewcastleUniUCU How could I help?

0 favourites 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU I am not. Soz!

0 favourites 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU is there anyone who could bring more leaflets up to USB?

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep A friend once sent me the following text: "Just took the biggest dump of my life. I saluted as it went down."
I think about that text often.

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK Did you find this? royalvendors.com/customer-servi…

0 favourites 0 retweets

Can anyone see what I'm missing? This is from Simon Tatham's minesweeper, which is supposed to always have a unique solution. There's one mine left.

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Well spotted!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @ajk_44 @icecolbeveridge The first year I went (mathsjam 2?) Colin W suggested that everyone should move tables after each session.

0 favourites 0 retweets

In reply to @aperfect

@aperfect Ah, the old 'semantics' loophole in Newton's laws

0 favourites 0 retweets

In reply to @jjaron

@jjaron You're always wiping something. Nose is one of my preferred zones

1 favourite 0 retweets

This is one of those things that you probably wouldn't think of unless it affected you, but needs to be a part of written policy beforehand. This is why waving your hands and saying "we don't discriminate against women when making grant decisions" isn't enough twitter.com/PughRhiannon/s…

7 favourites 0 retweets

In reply to @christianp

This is something that @NCLMathsStats does really well (notwithstanding the fact I'm currently on #ucustrike about the gender pay gap) - we have a restart fellowship, funded by the school, for exactly this kind of situation

0 favourites 0 retweets

I have arrived in the town of Stone for #BigMathsJam, and twitter tells me that #stone is trending. It's not a coincidence, is it? The results are, of course, of no use to me.

6 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared Need a lift?

0 favourites 0 retweets

December

In reply to @icecolbeveridge

@icecolbeveridge "I never thought I'd find myself so close to Birmingham!" said Bradley, astonished

0 favourites 1 retweet

Just typed a ç using a keyboard combo on the first attempt
#UnicodeGoals

7 favourites 0 retweets

In reply to @WillFurnass

@WillFurnass Alt Gr, comma, c

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn @becky_k_warren And where would you like to publish that write-up? 😉

1 favourite 0 retweets

First day back at work after #UCUStrikesBack. 99 unread emails in my inbox.
#FeelBadForYouSon

4 favourites 0 retweets

I need a long German word for when I agree with the sentiment of a political video but can't deal with the cringey dialogue twitter.com/Ed_Miliband/st…

5 favourites 0 retweets

In reply to @aperiodical

@aperiodical @MathsObjects I've just looked, and Curtas are going for £1,100 on ebay. WHY DIDN'T I BUY AT £200?!?!

0 favourites 0 retweets

In reply to @henryseg

@henryseg what kind of expenses will you need covered?

0 favourites 0 retweets

#tiling

19 favourites 2 retweets

#reflections

7 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett By jove...!

1 favourite 0 retweets

One for @icecolbeveridge:
"Here, I've got perfect pitch. I'll help you tune your guitar" said Ieuan, chummily.

2 favourites 1 retweet

In reply to @KentHaines

@KentHaines @DavidKButlerUoA If you want to tell them exactly which number it is, 'zillion' in base 36 is 77312048855 in base 10

1 favourite 0 retweets

I've just discovered something incredible: @kisonecat has compiled TikZ to WebAssembly!
That means you can render TikZ diagrams in web pages, **on the fly**!!
I've made a demo page with an editor, so you can see it and believe it: tikzjax-demo.glitch.me

39 favourites 15 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi @kisonecat Ideally yes, but not yet: it's not clear from the published source how it's compiled, so I don't think it's very robust at the moment.

1 favourite 0 retweets

I've just learned there was a physicist called John Crank! en.wikipedia.org/wiki/John_Crank

0 favourites 0 retweets

In reply to @theoremoftheday

@theoremoftheday 👏👏👏

0 favourites 0 retweets

They said running second in the polls against the worst government in living memory was impossible, but we did it. twitter.com/jeremycorbyn/s…

3 favourites 0 retweets

In reply to @SophieBays

@SophieBays @IMAmaths that's my birthday!

2 favourites 0 retweets

While looking at my daughter's advent calendar this morning, I noticed Mary is the only female on it. I wondered how many books of the bible pass the Bechdel test. This blog post says it's only four! paidiske.wordpress.com/2013/01/22/the…

4 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge "Neapolitan, please, but could you replace the strawberry and chocolate with vanilla?" asked Chanelle, extraordinarily

2 favourites 2 retweets

I've just noticed that if you choose "wheelchair accessible" on google maps directions, it still shows an icon of a dude walking

0 favourites 0 retweets

When you say "boiler", does it have two or three syllables?

0 favourites 0 retweets

Looks like 1% of you aren't going to get a joke I'm going to make in about a month's time.
Thank you for your participation. twitter.com/christianp/sta…

3 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @KWeatherwalks

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans

0 favourites 0 retweets

A late contender for Understatement of the Year twitter.com/SumDumThum/sta…

7 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge "I'm so proud my boy's in the toon's starting XI for the boxing day match" said Pa Shearer, seasonally

0 favourites 1 retweet

In reply to @SophieBays

@SophieBays @FryRsquared Do you have a team of cleaners?!

1 favourite 0 retweets

I have a cylinder and an octagon to wrap. Any advice, geometry pals?

I'd also like to refute right now that I buy presents because of the interesting wrapping consequences

10 favourites 0 retweets

In reply to @knotunknot

@knotunknot That would be excellent advice if I could get out the to shops!

0 favourites 0 retweets

In reply to @gorlitsa

@gorlitsa @knotunknot That's a good technique, but the diameter of the cylinder in question makes that quite hard!

0 favourites 0 retweets

In reply to @FakeUnicode

@FakeUnicode @AstroKatie Makes more sense in LaTeX from the author's perspective, if you think of the math environment as 'the way of getting weird symbols to appear'. arXiv then renders that using MathJax.

3 favourites 1 retweet

In reply to @CounterOfSheep

@CounterOfSheep Dyspraaaxiaaaaa!

0 favourites 0 retweets

In reply to @CounterOfSheep

@CounterOfSheep It is I, your local let's-diagnose-Alison expert

0 favourites 0 retweets

In reply to @wtgowers

@wtgowers Man Employs Ambiguity of English Grammar to Make Point, is Hoisted by Own Petard

1 favourite 0 retweets

In reply to @wtgowers

@wtgowers The lack of a hyphen between 'tree' and 'felling'?

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn @samholloway This feels like game theory in action

3 favourites 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam @Ridermeister I think you need the twin primes conjecture to be true for that

1 favourite 0 retweets

In reply to @funnymaths

@funnymaths If you consider statements of the form 'x = x', where x is a real number, as a provable math statement, then I think no: there are only countably many things that can be written, but uncountably many real numbers. Doesn't matter how many monkeys you've got.

3 favourites 0 retweets

In reply to @derSimor

@derSimor @funnymaths Uncountably Many Monkeys is a good name for a band

5 favourites 0 retweets

In reply to @NdeRancourt

@NdeRancourt @funnymaths Good point!

1 favourite 0 retweets

2020

January

Just remembered something - at #BigMathsJam, who asked me about my droste Dobble set?

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Take your like and get out

2 favourites 0 retweets

In reply to @KESMathematics

@KESMathematics HOW MANY YEARS AGO???

0 favourites 0 retweets

Ed Pegg, Jr has started updating mathpuzzle.com again! Hooray!

8 favourites 1 retweet

In reply to @sxpmaths

@sxpmaths Yeah, those are great!

0 favourites 0 retweets

🧓 "That's a nice dress, (2-year-old)"

👶 "IT'S GOT POCKETS!!!"

#StartYoung

6 favourites 0 retweets

I think this hyperbolic tiling I left in my last office might be ten years old!

6 favourites 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor "I would've got away with HS2 if it wasn't for you pesky kids!"

0 favourites 0 retweets

Oh no, I've written 'except' six times and it's now an unpronounceable mess of letters

5 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared do you know of a decent taxonomy of mathematical topics, covering as wide a range as possible but particularly secondary and HE? At the moment I'm using the mathcentre taxonomy (mathcentre.ac.uk/types/communit…) which is old and missing lots of things

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared I want a set of categories to describe what ideas a question assesses. The mathcentre taxonomy is a hierarchical thing with entries like "Numbers and Computation -> Arithmetic -> Operations -> Multiplication".
I don't think a hierarchy is correct, but (1/2)

0 favourites 0 retweets

In reply to @christianp

@honeypisquared I want someone else to have thought about all the concepts involved in maths at the level I'm working in, and how they relate to each other, so I can have a standard way for question authors to say "this question is about factorising quadratics" without making up their own tags

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @GermanQuatsch might get it?

1 favourite 0 retweets

Is my daughter too young for NP-hard problems?

26 favourites 1 retweet

In reply to @Simon_Gregg

@Simon_Gregg It's a poncey toiletries advent calendar

0 favourites 0 retweets

In reply to @Simon_Gregg

@Simon_Gregg Oh, it's the twelve days of Christmas. That hadn't twigged in my head

0 favourites 0 retweets

@ncllibsage 1906?

0 favourites 0 retweets

In reply to @MouldS

@MouldS Maybe @colourblindorg?

0 favourites 0 retweets

The phishing is coming from _inside_ the social network!

4 favourites 1 retweet

In reply to @NewcastleUniUCU

@NewcastleUniUCU @UniofNewcastle Known knowns - that's knowledge squared

1 favourite 0 retweets

I can't work out what WolframAlpha is doing wrong with this query: wolframalpha.com/input/?i=deriv…"derivative of (vector{1,2} dot vector{x,x^2}) with respect to x"

It can do the dot product properly on its own: wolframalpha.com/input/?i=vecto…

0 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees I hit deleted items 420 yesterday.

1 favourite 0 retweets

Is anyone planning anything for the next palindrome day, 2020-02-02?

26 favourites 8 retweets

In reply to @letsgetmathing

@letsgetmathing I think that means it's a feast day for you

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared @AlxHague 70

1 favourite 0 retweets

Yes!!! twitter.com/breenmij/statu…

4 favourites 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn @StatsJen @hughhunt @tomrocksmaths Will any of you have time for a drink?

0 favourites 0 retweets

Recipe for instant mathematical delight: search MathWorld for the word "surprisingly"
mathworld.wolfram.com/search/?query=…

8 favourites 2 retweets

Is this @My_Metro stat misleading? Does "escalators were working" mean:
- every escalator was working
- every station had a working escalator
- every station had working escalators in both directions
- they measured time each escalator was running, and took the mean

10 favourites 5 retweets

In reply to @christianp

The first two options are straight out, because one of the escalators at Haymarket has been broken for weeks. And if it's the mean, should it be weighted by usage?

1 favourite 0 retweets

In reply to @Smylers2

@Smylers2 That's the most pessimistic option, which I didn't even want to think about

2 favourites 0 retweets

In reply to @tomrocksmaths

@tomrocksmaths @SamHartburn @StEdmundHall @UniofOxford Sounds fun!
Format feels familiar...

1 favourite 0 retweets

In reply to @christianp

Uh oh.

6 favourites 0 retweets

In reply to @christianp

It's 95% all the way down.

(95% of the way down)

3 favourites 0 retweets

In reply to @christianp

Writing a follow-up to "How to Lie with Statistics", titled

"The Enormous Difficulty of Telling the Truth with Statistics"

4 favourites 0 retweets

In reply to @RAnachro

@RAnachro Some people say 'percentage points' to make that distinction. E.g. if 20 if 100 people were ill and now it's 30, that's an increase of 100 percent or 10 percentage points

1 favourite 0 retweets

In reply to @SamHartburn

@SamHartburn to make the graphic work. I don't have a problem with it

1 favourite 0 retweets

Does *your* calculator give the numbers happy little emoji names?
Mine does.
somethingorotherwhatever.com/nice-calculator

2 favourites 0 retweets

Dredging through @aperiodical's comment moderation backlog, I spotted this interesting app by @NathanFallet: delta-math-helper.com
Looks like it'd be useful if you have a few calculations that you need to over and over

4 favourites 2 retweets

In reply to @Shona_Mu

@Shona_Mu Someone should tell the conference I spoke at, where I had to submit an actual 8-page paper to go with my talk. Not sure the paper was ever published anywhere

3 favourites 0 retweets

February

Cor golly, ten years today since I wrote my first maths blog post: checkmyworking.com/2010/02/whats-…
In the ten years since then, I've narrowed down my interests from "all maths" to "all maths except pregroups"

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall But Choco Liebniz is right there.

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician @WoollyBenguin My grandad was one of the first dialysis patients and held the record for longest time on dialysis. I'm glad someone donated theirs to keep you going

1 favourite 0 retweets

In reply to @matheknitician

@matheknitician @WoollyBenguin No, London. Don't tell anyone, but I have Southern roots

1 favourite 0 retweets

In reply to @JimPropp

@JimPropp Yes: I wrote a parser for asciimath syntax, and it has an open bug from someone who encountered just such an ambiguity. It involved normal parentheses too, somehow

7 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared "Playing With Infinity", written by Rózsa Péter while confined to a Jewish ghetto during the war, is as good a pop maths book as any.

2 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared @AlexandraBerke's Beautiful Symmetries is a worthy contribution to the genre beautifulsymmetry.onl

2 favourites 0 retweets

In reply to @kyledevans

@kyledevans @TLMaths oh my god. Please say he got a computer to generate these

0 favourites 0 retweets

Currently embroiled in an all-Chris email conversation. Have had to resort to using surnames to have any chance of knowing who we're talking about

5 favourites 0 retweets

In reply to @christianp

#Diversity

1 favourite 0 retweets

In reply to @stecks

@stecks @mscroggs @aPaulTaylor I know which way it was for my puzzles

0 favourites 0 retweets

In reply to @KentHaines

@KentHaines Not sure I have something ready-made, but you could ask "does doing <operation> to both sides of an equation always/sometimes/never preserve the equation?"

1 favourite 0 retweets

Maths modelling exercise: describe the shape of this pack of butter as it's used up

0 favourites 0 retweets

In reply to @Daily_Epsilon

@GwoMaths @MathsTim What's a nickel worth, and what's a dime worth?
Yours,
Confused of Great Britain

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Presumptuously, Austin sat down before the dinner gong was sounded

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Alright:

Ever since his rambling speech, Mr Romney was intermittently asked "But why do you want to be buried under _that_ ward?"

0 favourites 1 retweet

In reply to @FOTSN

@FOTSN are you telling me you haven't watched the Clangers with the subtitles on?

3 favourites 0 retweets

In reply to @FOTSN

@FOTSN oh no, cooler heads have prevailed on series 3. What a bore!

Series 1 was like this:

1 favourite 0 retweets

In reply to @becky_k_warren

@becky_k_warren @DavidKButlerUoA There's a really good French word for people like this: 'yakafokon' (just do... /you just have to...) fr.m.wiktionary.org/wiki/yakafokon
V satisfying to shout when annoyed.
Mrs L-P has also banned "it should work" for similar reasons.

1 favourite 0 retweets

I'm not sure I've seen this puzzle before, and I really like it:

We have n keys and n boxes. Each key fits only one box. We shuffle the keys and put one in each box. Then we randomly break open 1≤k≤n boxes. What is the probability that we can unlock all the other boxes?

90 favourites 17 retweets

In reply to @christianp

I'm trying to see if I can turn this into an intuition-challenging result, like the birthday paradox.

"100 boxes, I open 99 of them, prob you can open the last one?" (really high, not surprising)

"100 boxes, I open 1, prob you can open all the rest?" (higher than you'd think?)

6 favourites 0 retweets

In reply to @christianp

The birthday paradox works as a demo because you can engineer an astonishingly high probability from what looks like a small part of the probability space.

Maybe this is the one probability puzzle that *does* match our intuitions.

7 favourites 0 retweets

In reply to @PetersenGraph

@PetersenGraph that's certainly true!

2 favourites 0 retweets

In reply to @victorolosaurus

@victorolosaurus @stevenstrogatz A key can be in the box that it unlocks. If you're worried about that happens practically, maybe a box snaps locked when you push its lid down.

1 favourite 0 retweets

I've been thinking about the fact that an n×n square grid has as many cells as a triangular lattice with n triangles on each side.
Is there a nice continuous bijection between them? When n is odd, you can at least keep one line of symmetry throughout.

31 favourites 7 retweets

In reply to @christianp

Here's the same thing for a 2×2 grid. The triangle in the middle has to go one way or the other, so you have to break the vertical line of symmetry

7 favourites 0 retweets

In reply to @christianp

I've made a nice looping thing!
triangle-square.glitch.me

29 favourites 4 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo open k boxes first

0 favourites 0 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi ah, like this!

3 favourites 0 retweets

In reply to @Pecnut

@Pecnut @stecks getting that on a t-shirt post-haste

1 favourite 0 retweets

In reply to @SamDurbin1

@SamDurbin1 @stecks Conversely, I maintain there's no way to get a gang of unruly year 10s on board like a rude-sounding name and a rude-looking diagram.

0 favourites 0 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi currently negotiating getting some time set aside at work to do arty stuff, so: soon!

1 favourite 0 retweets

In reply to @MathsInspiratn

@MathsInspiratn That'd be lovely. Would you like different colours, or a black background?

0 favourites 0 retweets

In reply to @mrtheta33

@mrtheta33 Yes

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway or, since months are cyclical, shift everything right by three months. That's easier to visualise

3 favourites 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths @robeastaway I was surprised Feb 29th was higher than those. You'd expect four times as many on the 28th as the 29th, but apparently not!

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway @ZoeLGriffiths ah!

0 favourites 0 retweets

In reply to @christianp

Thanks to tips from a couple of people, I've done some more work on what I'm calling the squiangle.

8 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge @SamHartburn @Trianglemancsd random-people.glitch.me

3 favourites 1 retweet

Oh, to have the confidence of a man explaining prime-finding algorithms to Simon Plouffe

6 favourites 1 retweet

In reply to @SamHartburn

@SamHartburn @icecolbeveridge Absolutely!

1 favourite 0 retweets

In reply to @SamHartburn

@SamHartburn Yep, that's right. And tell me, because I could use data from other countries!

0 favourites 0 retweets

New #MathArt on display in @NCLMathsStats. Based on my 'squiangle' triangle → square transformation.
This piece shows the sequence of moves triangle → square → 90° rotation → triangle → 120° rotation

20 favourites 1 retweet

In reply to @christianp

@NCLMathsStats You can see that transformation in motion at squiangle.glitch.me

1 favourite 0 retweets

In reply to @Ayliean

@Ayliean @NCLMathsStats Hmmm! 🤔

0 favourites 0 retweets

Were you expecting this?

4 favourites 1 retweet

This is an incredible integer sequence: oeis.org/A000201

14 favourites 2 retweets

In reply to @roger_mansuy

@roger_mansuy the Jessica Stockholder sculpture at IHES is what inspired me to find that sequence :)

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston @theoremoftheday I got to it via the "if n is in the sequence then n+(rank of n) is not in the sequence" definition. I was very surprised to find the fibonacci word!

4 favourites 0 retweets

In reply to @OpenLab_Ncl

@OpenLab_Ncl do you know if there are any laser cutters on campus that I (a staff member) could use?

0 favourites 0 retweets

In reply to @jjaron

@jjaron *gasps in Northern*

2 favourites 0 retweets

I know what I'm doing this morning oeis.org/A093579

5 favourites 1 retweet

I am not a lecturer. I am on strike. I'm on strike both for my own pension, and for others who have it worse than me, due to insecure employment or inequitable opportunity. twitter.com/pipmcgowan/sta…

9 favourites 3 retweets

This is your semi-regular reminder that the thaMographe exists, is easy to use, and less hassle to keep in your bag than a set of compasses, protractor and ruler. twitter.com/thamographe/st…

9 favourites 2 retweets

In reply to @jjsanderson

@jjsanderson A glitch in the matrix

0 favourites 0 retweets

Nominative determinism and Tyson Fury:

0 favourites 0 retweets

In reply to @NewcastleUniUCU

@NewcastleUniUCU @Athena_SWAN My favourite thing about the uni's EDI events is how many of them are outside core hours...

1 favourite 0 retweets

My daughter calls 10 'one-zero' and, honestly, she's got a point

14 favourites 1 retweet

In reply to @acubley

@acubley A perfectly cromulent number

1 favourite 0 retweets

@mikegibson2010 I think I'd go 'f twice'

0 favourites 0 retweets

In reply to @rooneyvision

@rooneyvision @thetrainline Is it bad that I recognise the film that's from?

0 favourites 0 retweets

In reply to @rooneyvision

@rooneyvision @thetrainline this one from 1948, about UCLA's mechanical computer vimeo.com/70589461

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared Happy bday!

1 favourite 0 retweets

In reply to @haggismaths

@haggismaths @stecks @peterrowlett @aperiodical @NewtonInstitute Peanocast: each episode is about the previous episode

4 favourites 0 retweets

Best use of the Bercow gif, 2020 twitter.com/EnDirectDuLabo…

3 favourites 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam I'd never been bothered before about whether 100 had to be a square number

1 favourite 0 retweets

I'm a big fan of whatever this is mateturismo.wordpress.com/2020/01/30/cha…

0 favourites 0 retweets

When we say 'time is a dimension', this is what that means. twitter.com/JanWillemTulp/…

13 favourites 4 retweets

In reply to @RrrichardZach

@RrrichardZach I had to look at the source of kpathsea recently, and I just shook my head and closed the editor

0 favourites 0 retweets

In reply to @SLSingh

@SLSingh a similar site in English is numdic.com

0 favourites 0 retweets

As the song goes:

🎶 Blue and yellow and that is all,
Yellow and blue and that's it.
I can see both colours
Of the rainbow,
There are only two. 🎶 twitter.com/DrJeniMillard/…

4 favourites 1 retweet

March

In reply to @christianp

My first thought, 'Sleuth Women', was stronger, but I'd have had to recuse myself

0 favourites 0 retweets

I need you all to know that our team name at the murder mystery yesterday was "We've got a Maigraine" and I think the organiser thought I'd just misspelt 'migraine'.
Anyway, the prize for best name went to 'Giggle girls', so it was clearly a fix.

1 favourite 0 retweets

In reply to @AnonMathMom

@AnonMathMom We've had the same - noticed all four molars last night. After the nightmare of the other teeth, this feels like an anticlimax

1 favourite 0 retweets

In reply to @MathsTechnology

@MathsTechnology @TMiPUK @MathsWorldUK Up north *would* be good!

2 favourites 0 retweets

Not sure how I feel about this.

8 favourites 2 retweets

In reply to @christianp

Or this.

1 favourite 0 retweets

In reply to @GhostMutt

@GhostMutt In JavaScript, render each frame to a png file using the node 'canvas' module, then use ffmpeg to make them into a movie.
The code is online at github.com/christianp/ani…

0 favourites 0 retweets

In reply to @christianp

Slightly favourable about this

1 favourite 1 retweet

In reply to @christianp

Whoosh!

3 favourites 0 retweets

In reply to @yenergy

@yenergy Have you seen Miss Fisher's Murder Mysteries? Extremely low-peril and camp detective drama

2 favourites 0 retweets

In reply to @christianp

Kaboing

0 favourites 0 retweets

A day's break in the strike has allowed @Tegglington to open-source Coursebuilder, the tool we made to produce accessible web-based versions of lecture notes.
github.com/coursebuilder-…
It takes in LaTeX, and outputs HTML pages and slideshows.

10 favourites 4 retweets

In reply to @christianp

@Tegglington There's a load of related stuff around automatically building notes and providing access to them through the VLE, which we'll also open source later, but we thought it was important to get the main part of the tool out, for those who can use it.

1 favourite 0 retweets

In reply to @christianp

Triangular!

0 favourites 0 retweets

Inspired by the recent fuss about who Michael Bloomberg could give $1 million to, I've made a thing on @glitch which asks for your net worth then tells you where in the USA you could give everyone $1 million (or $1, or $100, or ...)
make-it-rain-bloomberg.glitch.me

53 favourites 18 retweets

In reply to @christianp

@glitch I've written a bit about it on @aperiodical: aperiodical.com/2020/03/where-…

3 favourites 0 retweets

In reply to @anildash

@anildash @glitch Oh yes, good point! Will do.

1 favourite 0 retweets

In reply to @christianp

@anildash @glitch Although what that would look like on phones needs some thought

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @neil_calkin Colin, the only conclusion that makes any sense is that you wronged a computer at some point in the past and it put a hex on you

0 favourites 0 retweets

In reply to @alexandersafir

@alexandersafir @anildash @glitch They are

1 favourite 0 retweets

In reply to @joelbezaire

@joelbezaire @mathhombre It looks like part of the way towards peasant multiplication: en.m.wikipedia.org/wiki/Ancient_E…

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Wikipedia says 9 is an 'absorbing element' en.m.wikipedia.org/wiki/Absorbing…
But I'd always call it a 'zero element'.

6 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA But ZERO IS SO COOL

1 favourite 0 retweets

In reply to @christianp

@DavidKButlerUoA Just spotted I wrote 9 instead of 0 🙄

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA What do we call the coolest thing possible? ABSOLUTE ZERO. Quod Erat Demonstrandum, CP out

2 favourites 0 retweets

In reply to @lyd_w

@lyd_w How is it only day 10?! I've forgotten what my job is

0 favourites 0 retweets

In reply to @lyd_w

@lyd_w

1 favourite 0 retweets

In reply to @UncannyStatic

@uncanny_static I camel-case the title. I don't do a lot of scholarly writing, so this scheme might not be tenable for anyone else

1 favourite 0 retweets

Well done to whoever on the @NewcastleUniUCU #UCUStrike made this placard!

24 favourites 3 retweets

How does Richard K. Guy not have a MacTutor biography?!

0 favourites 0 retweets

@mikegibson2010 @oganikathegames Did I see an early version of this a year or two ago? It feels familiar

1 favourite 0 retweets

In reply to @CardColm

@CardColm John Conway has one.

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow @ColinTheMathmo Yeah, I can't think many English mathematicians of the 19th century had PhDs

0 favourites 0 retweets

In reply to @christianp

Clonk

2 favourites 0 retweets

In reply to @christianp

Ah! That's how you do it!

4 favourites 0 retweets

Who called it a magma and not a hemidemisemigroup?

6 favourites 0 retweets

In reply to @siwelwerd

@siwelwerd @katemath @impredicativity @maryepilgrim @Oreo You have not lived.

1 favourite 0 retweets

Colleague sending follow-up emails to ask why I haven't responded, as if he's completely unaware of the #UCUStrike 🤷‍♂️

2 favourites 0 retweets

In reply to @christianp

Kerchonk

1 favourite 0 retweets

I've made a t-shirt out of my squiangle design. Here's what it looks like on algorithmically-generated hunk Chad McYank redbubble.com/shop/p/4574510…

6 favourites 1 retweet

I've just found out there's an episode of Postman Pat about change-ringing bbc.co.uk/cbeebies/shows…

5 favourites 1 retweet

2020 and the Cambridge journals website still has the link to read the PDF behind an obscure icon next to the sharing links.

2 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared *consults Cluedo board*

I'll be in the... ballroom

3 favourites 0 retweets

(quietly assuming that the people who keep the server farms running are still going in to work)

9 favourites 3 retweets

In reply to @peterrowlett

@peterrowlett I am so ready to talk with your son about this kind of algebra!

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Yeess, yeeeesss, feel the call of the dark arithmetic!

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK I mean, it'll put people off knocking on your door, so in a way, yes

0 favourites 0 retweets

There is a Microsoft Teams app for Linux. What a crazy world.

2 favourites 0 retweets

The person doing the Abel prize announcement appears to have chosen as his green screen background "unregulated hotel room"

2 favourites 0 retweets

I want as many different conventions for writing numbers as you can give me. I'm interested in contexts where there are different rules for how numbers are written, e.g. scientific notation, percentages, currencies.
I'm also interested in 'optional' things like grouping digits

4 favourites 0 retweets

In reply to @christianp

Which numbers can you represent with different notations? For example, decimals represent numbers of the form a×10ᵇ, so not even all of ℚ!
What fruity sets can we find a corresponding notation for?

1 favourite 0 retweets

In reply to @semiBad

@semiBad that's a brilliantly lateral way of finding some! I've looked at the source code for a few internationalisation formatters though, so cut out the middleman

0 favourites 0 retweets

In reply to @christianp

I've seen gas stations in the US show the tenths part with a fraction instead of a decimal.
Have you seen any other signage with a fixed denominator that isn't 10?

1 favourite 1 retweet

In reply to @christianp

Or, more thrillingly, are there contexts where numbers are written as decimals, but some decimals are illegal?
This is sometimes true for currencies: a price like £1.054 would normally be rounded to the nearest penny. But if it's a price per unit, you might need that extra digit

2 favourites 0 retweets

In reply to @LearningMaths

@LearningMaths that's exactly what I'm looking for! Thanks!

1 favourite 0 retweets

In reply to @miclugo

@miclugo that rings a faint bell! Thanks!

0 favourites 0 retweets

In reply to @UD_engr88

@UD_engr88 thanks! Do you know roughly when it changed?

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @LearningMaths ahh, I knew I'd seen that kind of thing recently! Thanks

1 favourite 0 retweets

I've just seen that @mickaellaunay is doing daily fun maths livestreams: youtube.com/watch?v=J6tcnc…

Is anyone doing something similar in English?

0 favourites 0 retweets

In reply to @boss_maths

@boss_maths @UD_engr88 yess, this is the kind of knowledge I need!

1 favourite 0 retweets

In reply to @christianp

Percentages highlight an often-ignored point about rounding: if you've got a boundary, rounding to it can be very misleading.
For example, if something works 999 of 1000 times, it's not correct to say it's 100% effective. 99% is further from the true value, but shows the failure.

2 favourites 0 retweets

In reply to @jonpenguin

@jonpenguin oh, that's new to me. Thanks!

1 favourite 0 retweets

@oscarwlog Yes, that's a good vein of odd notation. Have you seen fractional numbers in hex or octal notation? I've definitely seen binary fractions, but can't think where I might have seen a fractional hex value

0 favourites 0 retweets

In reply to @CPANJGamble

@CPANJGamble ... how did that help?

1 favourite 0 retweets

In reply to @poveryant

@poveryant As in 3,300? That's new to me, thanks

0 favourites 0 retweets

In reply to @EmJayLambert

@EmJayLambert @icecolbeveridge That intrigued me greatly, but this page - metricviews.org.uk/2012/05/fire-h… - says the top number is the size of the mains, and the bottom is the distance to it, so it's just a scalar

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @TeaKayB @samholloway @theclairodactyl @SamHartburn

2 favourites 0 retweets

In reply to @bbarber_

@bbarber_ Could you do it online?

3 favourites 0 retweets

Slowly becoming more and more annoyed that the android and web-based versions of @msonenote don't have the "insert space" tool.

1 favourite 0 retweets

#WorkingFromHome

#NoPlagueToday

2 favourites 0 retweets

In reply to @algorithmachine

@algorithmachine @katemath @AndrewR_Physics @pa28 @ChrisMihos 85 is unimaginably hot to me. I'm on your kids' side

1 favourite 0 retweets

In reply to @dennisprangle

@dennisprangle Are you in the MSP online teaching group on Teams? We've been looking into that

0 favourites 0 retweets

In reply to @k_houston_math

@k_houston_math @_jcken @stecks It's very good for self-service formative use, and doesn't need anything installed to use. We're doing all sorts to support online teaching here, but early next week I should have a simple LTI solution which doesn't need installation but allows reporting score back to your VLE

0 favourites 0 retweets

In reply to @christianp

@k_houston_math @_jcken @stecks VLEs with built in SCORM players such as Moodle and Blackboard (but BB is full of bugs) can also put scores from Numbas directly into their grade books without any software setup.

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In reply to @christianp

@k_houston_math @_jcken @stecks On the subject of exams: we're still thinking this through ourselves. Exams could happen in Numbas, but because everything has to be auto-marked, you're a bit limited in what you can ask. Randomisation reduces the efficiency of copying answers, though.

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In reply to @christianp

@k_houston_math @_jcken @stecks You can set questions creatively to test student understanding of concepts, but you can't ask for a proof. So, good for things like service courses and applied subjects, but less so for pure maths

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In reply to @christianp

@k_houston_math @_jcken @stecks One feature of Numbas' design will come in very handy: it runs entirely on the client, so not affected by poor Internet connections when submitting answers or rendering maths.

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In reply to @k_houston_math

@k_houston_math @_jcken @stecks No problem, go ahead!

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In reply to @poveryant

@poveryant So the games like NBA 2K3 conflict with that

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In reply to @honeypisquared

@honeypisquared @asharpeducator And here's me with my own stupid name as a username!

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@BiCapitalize Would you say you are rouxful?

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In reply to @k_houston_math

@k_houston_math I'm not sure that's the kind of thing we'd ever be allowed to share. Might get away with a question from a mock, when they exist

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In reply to @ColinTheMathmo

@ColinTheMathmo PeerTube?

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Tech support email: "We encountered many errors while following the instructions published at <address>. Do you have a version without errors?"

Just.... what.

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What forethought of @peterrowlett and @stecks to round up and interview the makers of every maths podcast going, just before we all got locked down. twitter.com/aperiodical/st…

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In reply to @statto

@statto I've been meaning to ask if network theory can tell me either:
- how many of the people I know should I expect to be infected, or
- given how many people I know are infected, can I estimate the population infection rate?

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Not since GDPR day have I been made aware of so many mailing lists that I didn't ask to be on.
No, hotel I went to 9 years ago for afternoon tea, I don't want to know what you're doing about coronavirus.

13 favourites 1 retweet

In reply to @BassMonkey_

@BassMonkey_ @glitch @standupmaths I think that might be @glitch doing some maintenance. Surely even Matt can't send enough traffic to cause them trouble?

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In reply to @christianp

@BassMonkey_ @glitch @standupmaths ah, the status page says they're deploying a fix: status.glitch.com

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In reply to @GhostMutt

@GhostMutt More tins of veg means either 2 or 3 veg.
Prob(3 veg) is easy, because there's only one way of doing it: 5/9 * 4/8 * 3/7.
Prob(2 veg) is a bit harder: either VVT, VTV, or TVV. So 3*(5/9 * 4/8 * 3/7)
Add those together to get total prob

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In reply to @christianp

@GhostMutt You could work out the probs for VVT, VTV, and TVV separately, but it works out the same (try proving that!)

PS: what system is that?

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In reply to @GhostMutt

@GhostMutt A rule of thumb is: if you write more than a page of working for one calculation, consider looking for a one-liner

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Liven up lock-down: it's not social distancing, it's Covid Ops.

Sneak in and out of the park without being seen by another soul. Erase all trace of your activities with thorough hand-washing.

9 favourites 2 retweets

I promise I didn't plan this

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Is it 'lockdown' or 'lock-down'?

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A few years ago, we paid a web developer to make a website for us. The HTML uses single quotes for attributes, and is double-spaced throughout - there are two linebreaks after every line of code!

Just why.

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In reply to @wordsandbuttons

@wordsandbuttons what's TFS?

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In reply to @jjsanderson

@jjsanderson sed would fix it for me. It just boggles me that anyone would write code that way

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In reply to @pimbellinga

@pimbellinga What do you do if a student can't explain their work? Write off the whole test?

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In reply to @honeypisquared

@honeypisquared Very erudite.

Verudite.

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In reply to @pimbellinga

@pimbellinga If you're only checking a sample of students, and one or some of them fail your check, you have to assume some unchecked students also cheated, so punish the whole class. I can't imagine students will think that's fair

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Youngest L-P has pointed out that the Indonesian part of New Guinea looks like a dinosaur.

6 favourites 1 retweet

Everything about building mobile apps makes me cross.

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In reply to @aperfect

@aperfect I'm doing everything. We might need to make an app to deliver to all our students

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In reply to @aperfect

@aperfect "just build a web app" is the part I can't do. I just need to load a particular URL in a web view

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April

Nice to have this tested in the real world: a student doing a @NclNumbas test lost internet connection halfway through the test. Fortunately, all data is duplicated in local storage, so later that evening they re-entered the test and all the data was saved back to the DB. Phew!

5 favourites 1 retweet

In reply to @AdrianJannetta

@AdrianJannetta @NclNumbas No, it was a CBA that they had all week to complete

1 favourite 0 retweets

In reply to @jamesgrime

@jamesgrime @stecks I was about to say #spoilers, but if the spoiler raises more questions than it answers, is it a spoiler?

3 favourites 0 retweets

The toddler has started using the words 'maybe' and 'probably'. Time to inoculate her against frequentist interpretation.

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Real-world analysis: for any ε>0, there is a dog δ such that δ's whiskers are within ε of my toast.

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Rats, that's another space on the lock down bingo card crossed off. 🍞

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Finally got a quiet moment to record a #BigMathOff pitch.
Big fan of whatever this is that my face has decided to do

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In reply to @letsgetmathing

@letsgetmathing My bro was delivered 3kg of bread flour as a substitution for something else he wanted, so he gave it to me. I'd be in trouble otherwise!

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Now up to 7 #BigMathOff pitches. Nearly time to start!

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An interesting example of Brouwer's fixed point theorem: I think the tummy button of the snowman on the girl's PJs lines up with her own tummy button.

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In reply to @christianp

I now realise that I've added another exponential growth problem to my life.
Fortunately, I've already got a mathematical model for this one aperiodical.com/2012/05/grow-y…

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My wife is a primary teacher and while her school don't use quite as many services as this, it's still too many passwords to remember.
I wonder why LTI hasn't taken off in primary like it has in higher ed. twitter.com/dibsonmuad/sta…

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Just fitted a new aerator to the tap on the bathroom sink. Now in full control of flow rate. Feel like Handy Andy crossed with a Pharaoh*.

[*] en.wikipedia.org/wiki/Hydraulic…

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In reply to @honeypisquared

@honeypisquared stretcher for a subbuteo player

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Print your own dobble!!
print-and-play.asmodee.fun

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In reply to @AnonMathMom

@AnonMathMom At least you got to watch different episodes. We've been watching the same episode of Bing since February

1 favourite 0 retweets

In reply to @RrrichardZach

@RrrichardZach @Brightspace @CanvasLms QTI is the standard format for representing quiz questions. Apparently D2L's export is in QTI format: community.brightspace.com/s/question/0D5…

2 favourites 1 retweet

In reply to @tim_hunt

@tim_hunt @RrrichardZach @Brightspace @CanvasLms well yes, but for copying MCQs between systems it does the job, doesn't it?

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In reply to @christianp

@tim_hunt @RrrichardZach @Brightspace @CanvasLms though having spotted your post on the moodle forum, I see now that D2L adds a load of unhelpful rubbish. Oh well!

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I've just discovered that if you paste markdown into WordPress it converts it to HTML for you. That's nice!

4 favourites 1 retweet

In reply to @christianp

this is like the time I discovered that Jabubul automatically refronds TRV receipts from PlasNost

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In reply to @tim_hunt

@tim_hunt @RrrichardZach @Brightspace @CanvasLms yeah, I assumed D2L would at have a common cartridge export, but it seems not

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Uh oh twitter.com/mscroggs/statu…

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In reply to @evelynjlamb

@evelynjlamb Have you been doing the rainbows thing?

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In reply to @mscroggs

@mscroggs @matheknitician @aperiodical that makes me feel *slightly* better

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Everything in the L-P household is decided democratically. Starting to think the toddler is gaming the system. I don't recognise these voters but she's on first name terms with all of them.

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In reply to @christianp

youtu.be/qYlWjxs3BSQ

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Back on my animations nonsense.
The toddler came to look:

"You doing maths, daddy?"
"I like that maths!
"How is that maths?"

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Welcome to my webinar on interpreting graphs of exponential functions, "Beware the Log"

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In reply to @christianp

Just worked out the punchline!

17 favourites 1 retweet

In reply to @click_arun

@click_arun node.js with the 'canvas' package to render frames, then ffmpeg to turn them into a video. Source code at github.com/christianp/ani…

8 favourites 0 retweets

In reply to @natluurtsema

@natluurtsema morphology? en.wikipedia.org/wiki/Morpholog…

1 favourite 0 retweets

Have just realised that @jamestanton's exploding dots is the same thing as Papy's minicomputer.
Now excitedly awaiting his treatment of Papy's "Groups" youtube.com/watch?v=RnLOmc…

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In reply to @jamestanton

@jamestanton Have you seen this? rkennes.be/Papy-Minicompu…

It maps pretty well on to a lot of the 2→1 exploding dots stuff.

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In reply to @PaulsPrattle

@PaulsPrattle @jamestanton The same

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In reply to @GhostMutt

@GhostMutt did anybody *not*?

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In reply to @matthen2

@matthen2 did you see Stephen Wittens' version, back in the day? acko.net/blog/how-to-fo…
Yours is easier to follow, I think

71 favourites 14 retweets

Five minutes back and forth with @overleaf claiming it's never heard of \mathbb until I realised I hadn't done \usepackage{amsmath}

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In reply to @overleaf

@overleaf could the help message "if it's part of a package, make sure you've included it" recommend the package to use for widely-used macros like this?

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The Baby Buddy app from @BestBeginnings is really good. Each week it gives a rough size for the foetus along with a similarly-sized object to help you visualise it.

(and also a creepy drawing of the foetus which you shouldn't look at while eating)

(1/2)

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In reply to @christianp

Unfortunately, 'size' seems to mean 'length', with no consideration of volume or eccentricity.

So, in the last few weeks, L-P mk2 has been:

A tea bag 😊
A bar of soap 😐
A tin of beans 🥴
A CD 😬
A pen 😅

I don't think anyone would say those are in increasing size order.

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In reply to @christianp

Quiz: the doctor has found a stray object in your fundament.
Pick the one you really don't want it to be:

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In reply to @Helenintgarden

@Helenintgarden @aperiodical @james_a_9283 @K_Severn The poll plugin seems to be erratic about who it allows to vote. The buttons are there for me, and for the 14 people who have voted so far

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In reply to @ben_nuttall

@ben_nuttall that might just be you. For me it says 12:xx

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In reply to @ben_nuttall

@ben_nuttall it's 12:xx on WhatsApp web for me too. I wonder if it's a localisation thing

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Couldn't do anything else, so made a wobbly clock

3284 favourites 409 retweets

In reply to @glitch

@glitch what does ""Project <project-name> suspended: Suspending for too many remixes - contact support" mean? I wanted to choose a project name, and it turns out someone else already has it, but viewing their project gives that message

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In reply to @christianp

I've made it into a full, real-time clock: wobble-clock.glitch.me

107 favourites 25 retweets

In reply to @christianp

yesssss

240 favourites 41 retweets

In reply to @kyledevans

@kyledevans @yppahpeek 12:00 is going to be good

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In reply to @christianp

@kyledevans @yppahpeek phwoarrrrr

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The good thing about the way that Linux works is that asking JS to allocate a list with 5^100 elements in Firefox has crashed my entire system.

5 favourites 0 retweets

In reply to @KangarooPhysics

@KangarooPhysics nice!

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In reply to @dj__error

@dj__error Javascript

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall @pickover That's-a me!

2 favourites 0 retweets

In reply to @DanDin01665436

@DanDin01665436 @dj__error github.com/christianp/ani…

4 favourites 1 retweet

This reminds me of every meeting I've ever been in where we propose changing to a drastically improved process twitter.com/howie_hua/stat…

6 favourites 0 retweets

In reply to @mikeydoubled

@mikeydoubled @round Thanks for making me feel bad!

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In reply to @sharpestthought

@sharpestthought I reckon you could cheat with electromagnets to hold the end in place

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I tried the #BigMathOff and I'm up against the editor of Math Horizons! @TedG has pitched a really good bit of number theory that I'm not sure if I've seen before.
I had fun trying to record a video about fusible numbers. twitter.com/TedG/status/12…

6 favourites 1 retweet

The first week of the #BigMathOff lock-down edition is almost done and we've still got enough material for at least a couple more.
Thanks to the players so far, @mathspace, @matheknitician, @kyledevans, @samjshah2, @james_a_9283, @K_Severn and @TedG, and the players yet to come!

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In reply to @christianp

And thanks to @james_a_9283, @SamHartburn, @mathforge and @stecks for helping with the admin, because I've just realised I haven't acknowledged them for that yet! The #BigMathOff wouldn't happen without them

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In reply to @mathforge

@mathforge @james_a_9283 @SamHartburn @stecks I meant you!

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*opens BSL dictionary app*
"ooh, videos, better make sure my sound's turned off"

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Going to try this today twitter.com/c0mplexnumber/…

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In reply to @matthras

@matthras @futurebird @TChihMath Give @NclNumbas a go - it can create printed worksheets as well as the usual interactive quizzes. If you really want it to be a markup language instead of using the graphical editor, you could always write the question files by hand

1 favourite 0 retweets

In reply to @christianp

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths The pessimist's view could be that this rule won't work as a deterrent for people who don't understand exponential growth

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In reply to @drvinceknight

@drvinceknight I just... use git?

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If anyone felt like making an anonymous #BigMathOff pitch, that would help me out...

2 favourites 1 retweet

In reply to @k_houston_math

@k_houston_math @C_J_Smith Once online exam hell is over, I want to have a look at making coursebuilder easier to use

1 favourite 0 retweets

In reply to @statto

@statto As they say, you're always preventing the last pandemic

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Solipsists: what if nothing exists?

Mathematicians: what if nothing DOESN'T exist? twitter.com/wtgowers/statu…

7 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett the two-year-old version of this is that things in the gardens have numbers, and we take turns shouting "run to 3!", "run to 1!" and so on. Recently she introduced number 7, which turned out to be "behind the little tikes car"

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In reply to @peterrowlett

@peterrowlett I think so. I haven't pushed her to derive an incompleteness/inconsistency result

1 favourite 0 retweets

The expression " 2^x / x^2 " is a palindrome when written in that syntax, but has a sort of rotational symmetry when laid out as a vertical fraction.

23 favourites 7 retweets

In reply to @mikeandallie

@mikeandallie @MrHonner I haven't seen a counterexample to that, yet

4 favourites 0 retweets

In reply to @SciencePundit

@SciencePundit @evelynjlamb Or, I flippantly considered drawing the 2 with an 8-segment display.

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In reply to @christianp

@SciencePundit @evelynjlamb Wait, I mean 7-segment

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Just used @overleaf 's "compare versions" tool to see what changes my collaborator made, or rather didn't make, last night.
A++ would recommend (Overleaf, not the collaborator)

5 favourites 0 retweets

In reply to @sangwinc

@sangwinc @ColinTheMathmo Loogabarrooga!

2 favourites 0 retweets

Just accidentally discovered that Ctrl+Shift+X switches the direction of text in a text area in Firefox. That was a very confusing 30 seconds!

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I was jealous of how much fun the toddler was having with her Memory game, so I made my own. It's absolutely huge. absolutely-huge-memory.glitch.me

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May

In reply to @Thalesdisciple

@Thalesdisciple @hannahnpbowman Mine's the same age as yours. Yesterday she made potions using water with food colouring in it and blossom petals, then she painted the nails on some hands drawn on cardboard. Today we're going to bake some cakes and then try connect the dots with chalk

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In reply to @mscroggs

@mscroggs

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In reply to @mscroggs

@mscroggs

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I couldn't possibly comment on any large donations I might recently have made

3 favourites 1 retweet

springerlink.com is giving a rather cool 404 message for every page at the moment. I'll take this as a sign that I shouldn't be doing maths

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The @CBeebiesHQ programme DipDap just showed a monster dividing a cake into five pieces with two cuts. Is this what I pay my TV licence for?!

7 favourites 1 retweet

In reply to @christianp

Mrs L-P immediately pointed out that if the cuts aren't straight lines there's no problem. I retract my complaint.

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I thought more people would be interested in my absolutely huge memory game (absolutely-huge-memory.glitch.me).
It wasn't straightforward to implement; here's a little explanation of how it works

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In reply to @christianp

tfw you make something that appeals to exactly your brand of autism

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In reply to @ZenoRogue

@ZenoRogue I made a hyperbolic version a while ago. It's impossible.

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In reply to @ZenoRogue

@ZenoRogue Yeah, but 'small' has to be a very small number. If the view auto pans to whichever tile you pick, it could be as small as three tiles and it'd be very easy to get disoriented

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In reply to @josstified

@josstified Autodesk Sketchbook's time-lapse feature

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The #BigMathOff submission queue is running low, but I've just prepared two pitches. If I pit myself against myself, I'm guaranteed to win.

Am I that much of a chicken?

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge so you're saying you're up for a best-of-three Beveridge v L-P grudge match?

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In reply to @anildash

@anildash @glitch Writing the numbers in "base emoji" is on my to-do list!

2 favourites 0 retweets

In reply to @alephJamesA

@alephJamesA Not sure what non-academic means, but if it's maths I'll take it

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This is a good thread twitter.com/blatherwick_sa…

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Would you just look at that crumb though!
#SourdoughGoals #SourGoals

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In reply to @benjamin_leis

@benjamin_leis Cor!

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Today's JavaScript headache: Math.pow(Math.E,0.9) is more precise, but less accurate than, Math.exp(0.9).

3 favourites 1 retweet

In reply to @lisyarus

@lisyarus More precise: more digits given.
Less accurate: those digits are incorrect

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In reply to @lisyarus

@lisyarus that's precisely what I'm doing.

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In reply to @lisyarus

@lisyarus I don't know why you're being so pedantic. I said 'more digits given'. Who are you? Do you just scan twitter for people tweeting about javascript?

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In reply to @Cshearer41

@Cshearer41 @ajk_44 @anniek_p @becky_k_warren Thank you all for sharing this! I hadn't fully articulated it before, but now I think maybe "know when to go away and calm down" should be one of the steps in any problem-solving guide.

9 favourites 3 retweets

In reply to @Robotbeat

@Robotbeat @aperiodical She was the first woman, and the first Iranian, to win the Fields medal, one of the top prizes in maths. Her work was mainly in geometry.

1 favourite 0 retweets

In reply to @mathzorro

@mathzorro intrigued to know how much brute-forcing you did to find those

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In reply to @PeterKagey

@PeterKagey Thanks!

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Yesterday I could count on one hand the people who thought my waffle about weird maths made them go 'aha!'. Now I need to use my feet too. Vote for @pogonomaths' much more interesting pitch in the #BigMathOff twitter.com/aperiodical/st…

2 favourites 0 retweets

In reply to @eqdynamics

@eqdynamics @EFF Dad it's Wednesday

2 favourites 0 retweets

hey @wordpressdotcom, your "this address doesn't exist" page returns HTTP code 200. Could it return something like 404 instead? For example: wordpress.com/typo/?subdomai…

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tfw a pure mathematician tries to write a motivational message

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Just over an hour left to vote for @pogonomaths and finger counting aperiodical.com/2020/05/the-bi…

1 favourite 1 retweet

As a person whose job is to make e-assessment software, I'm greatly enjoying the /r/PearsonDesign subreddit as a catalogue of things to avoid. I live in fear of @NclNumbas showing up.
Point: auto-marking maths is hard.
But: please at least make an effort!
reddit.com/r/PearsonDesign

4 favourites 0 retweets

In reply to @profRoys

@profRoys Everybody catching coronavirus while celebrating the war would be Peak 2020 Britain.

2 favourites 0 retweets

You, a coward: Python doesn't have a switch statement

Me, a modern-day Galileo:

12 favourites 1 retweet

In reply to @christianp

of course, this has been done before: code.activestate.com/recipes/410695…

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Tired: this is baby X Æ A-12

Wired: I have chosen a truly marvellous name for the baby, which this margin is too narrow to contain

10 favourites 1 retweet

Spent too long making this

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Today's #BigMathOff pitch by @icecolbeveridge is unexpectedly relevant: are the possibilities *really* endless, bargain bin toy box? twitter.com/aperiodical/st…

1 favourite 1 retweet

In reply to @SamHartburn

@SamHartburn @icecolbeveridge 'The possibilities are finite, modulo your child's imagination!"

1 favourite 0 retweets

Google Maps has sent me my "April timeline update".
#BigData

5 favourites 1 retweet

In reply to @Krzysztof_Syruc

@Krzysztof_Syruc Fewer

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In reply to @peterrowlett

@peterrowlett @mscroggs @matheknitician Outrageous

2 favourites 0 retweets

In reply to @mscroggs

@mscroggs @peterrowlett @matheknitician Do it quickly, I've only got another couple of days' worth of pitches

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @peterrowlett @matheknitician I want it on my desk by 2!

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In reply to @robeastaway

@robeastaway I think this is the motivation: if you give a precise number, you're still thinking of each death individually. If you round off, each death is just part of a statistic. Rounding implies somebody being forgotten, and those in charge caring less.

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In reply to @robeastaway

@robeastaway Absolutely

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I see the Nonsense Formula Disapprove-o-Matic 3000 is beeping wildly from the cupboard I left it in, but I have a personal policy of not giving air time to fascists

1 favourite 1 retweet

In reply to @peterrowlett

@peterrowlett looks like you're walking this one!

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Drivin' round town
Painting things brown
It's Hugh Laurie
In his hue lorry

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You: movies such as "if..." exaggerate the violence of the British upper class as a metaphor for the class system

This public school's website: what's a metaphor?

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In reply to @christianp

legitimately thinking of putting this on a babygro for the new arrival

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In reply to @SamHartburn

@SamHartburn @peterrowlett @theclairodactyl My plan is to occasionally log in to accept swap requests

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Thinking about how every organisation had a "2020 vision" document, none of which envisioned a pandemic precipitating an almost total shutdown of society

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In reply to @mathforge

@mathforge Python's itertools.permutations has a lovely algorithm for generating tours of every permutation like this. If you haven't seen it, there's an explanation on stackoverflow: stackoverflow.com/questions/2565…

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In reply to @mathforge

@mathforge @Cshearer41 @RobJLow bah, I'd been saving that up to do next time I get some free time!
Why did you think it might not be possible?

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In reply to @benorlin

@benorlin Straight to the top of the class, Orlin

5 favourites 0 retweets

In reply to @christianp

@benorlin On a related note, a scene from my market stall:

Me: "quality shapes for sale!"
Them: "enneagon?"
Me: "no, I've still got plenty of stock!"

12 favourites 0 retweets

Uh oh incident-counter.glitch.me/nerdsniping

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The #BigMathOff has been running for a whole month! Thanks to everyone who's submitted so far.
There aren't many pitches left in the queue, so it might end this weekend, unless somebody sends more in.
Could *you* be somebody?

7 favourites 4 retweets

Serendipity! I'll be talking about this and other interactive maths things I've made in today's @TMiPUK event, at 3pm BST: talkingmathsinpublic.uk/#tmil twitter.com/SWCHS_Maths/st…

4 favourites 0 retweets

Mrs L-P is trying to upload a video to @Seesaw for her class. The browser keeps crashing on the caption page, when you first see the video. Surely it's not trying to transcode the video in the browser?!

1 favourite 0 retweets

In reply to @Seesaw

@Seesaw Tried both chrome and Firefox, and another laptop. No other seesaw tabs open

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn @nicole_cozens @robeastaway @mrsdenyer That is incredible. Had you been to Slough before then? Did you spend all four days in the hotel or did you venture out to the trading estate? A romantic tour of the pedigree chum factory?

4 favourites 0 retweets

To C, who sent me a postcard about the #BigMathOff: what a lovely thing to do! Thank you!

3 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Thanks, @sioroberts!

3 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @mscroggs @FennekLyra @matheknitician @MarHarStar @soupie66 @DrSmokyFurby @MsGreenMaths @SamHartburn @karenshancock @theclairodactyl @Dragon_Dodo @Helenintgarden @notonlyahatrack @LizWindxor I have no idea what's going on. This is starting to feel similar to how Mork and Mindy was a spin off of Happy Days

5 favourites 0 retweets

In reply to @SophieBays

@SophieBays I didn't know about world baking day, but I'm going to try to turn this into pizzas

1 favourite 0 retweets

In reply to @jjaron

@jjaron I set up a personal Funkwhale instance a couple of weeks ago. It's a very good Google music replacement, but needs turbo nerd powers to set up

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge You nerdsniped me into looking at min/max bounds for the uncertainties in all the measurements. Even my lower bound is still over 60, so you're probably right

3 favourites 1 retweet

TALMO: Baltic trading port or surprisingly-memorable workshop acronym?

Answer: talmo.uk

0 favourites 0 retweets

In reply to @christianp

someone should do a "Baltic city, IKEA furniture, or academic meeting?" quiz

1 favourite 0 retweets

In reply to @eqdynamics

@eqdynamics Of course

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp You mean two tilings with the same symmetry group? Do you have to preserve the symmetry during the morph?

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician I wouldn't say "desparate"...

0 favourites 0 retweets

In reply to @matheknitician

@matheknitician if there was massive demand, but I'm happy with 21 matches

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett He might enjoy thinking about muddy children: phiwumbda.org/~jesse/slides/…

1 favourite 0 retweets

In reply to @ZenoRogue

@ZenoRogue Are you aware of unicodeit.net?

0 favourites 0 retweets

In reply to @ZenoRogue

@ZenoRogue ah, sorry! I scanned the readme. As you were..

1 favourite 0 retweets

In reply to @KarenCampe

@KarenCampe Last time I looked there were another two pitches, so you've got a couple more days at least

1 favourite 0 retweets

This is how pros do US to metric conversions: measure a liquid by weight, add a digit of precision, and shift the decimal point to end up incorrect by a factor of 10.
Glad I stopped to think if that measurement sounded reasonable!

1 favourite 1 retweet

In reply to @RealityMinus3

@RealityMinus3 Oh yes, they made that error too!

1 favourite 0 retweets

In reply to @heavymetalmaths

@heavymetalmaths @Mathgarden Infinitely many! news.liverpool.ac.uk/2016/01/12/mat…

1 favourite 0 retweets

Catching up on my reading, here's a post from Turismo Matemático relevant to @pogonomaths's #BigMathOff pitch (aperiodical.com/2020/05/the-bi…) : a panel from Frankfurt am Main showing counting on fingers mateturismo.wordpress.com/2020/04/27/la-…

1 favourite 0 retweets

Dyspraxia is thinking about whether you also need to shave while picking up the shampoo bottle, then finding yourself staring at the shampoo trying to remember if it goes on your hair or your chin.

4 favourites 0 retweets

In reply to @christianp

When I want to know what 3 quarts is, I just look at the bottom of my pan.
(#CheckMyPanPrivilege)

1 favourite 1 retweet

In reply to @evelynjlamb

@evelynjlamb "The first number with N distinct prime factors" grows like the factorial of N. That makes 30 seem more reasonable to me.

1 favourite 1 retweet

In reply to @heavymetalmaths

@heavymetalmaths @KarenCampe @peterrowlett yeah, on Sunday we had nothing, and now we have another week's worth of pitches!

8 favourites 1 retweet

In reply to @AlexKontorovich

@AlexKontorovich @evelynjlamb I knew someone would pick me up on this! Point is they're both the product of an increasing sequence, so grow quickly

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Yes, I realised this morning that we're back to the 'perpetually imploding government ' phase of tory rule

1 favourite 0 retweets

In reply to @samjshah

@samjshah @KarenCampe @aperiodical Voting ends on Thursday

1 favourite 0 retweets

In reply to @christianp

Dyspraxia is your wife finishing making your sandwich for you because you spread a dollop of mayo *next to* the bread.

Twice.

2 favourites 0 retweets

In reply to @FryRsquared

@FryRsquared @kyledevans @geoffreydahl Do you know @lyd_w? These comics are exactly her sort of thing

1 favourite 0 retweets

In reply to @carolspringett5

@carolspringett5 @soupie66 sorry, I haven't really been playing the sticker book game

1 favourite 0 retweets

In reply to @gregeganSF

@gregeganSF @JDHamkins Trivial for you, but someone who isn't well-practised in proof methods wouldn't come up with that quickly

1 favourite 0 retweets

In reply to @k_houston_math

@k_houston_math How many hundreds is it now? Should I be worried?

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In reply to @k_houston_math

@k_houston_math 😬

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The #BigMathOff is close to ending again, unless some more maths appears.
If we get to 26 matches, that's 52 bits of maths, aka a full deck of cards. Exciting spin-off opportunity?
#spinoffportunity

13 favourites 4 retweets

In reply to @peterrowlett

@peterrowlett I wouldn't mind if it did end

1 favourite 0 retweets

June

In reply to @mathforge

@mathforge that's not a stat I'm interested in calculating

1 favourite 0 retweets

Someone has just emailed me a powerpoint containing a single slide, which contains a single link, to the thing they want to show me.

Do they not know that you can put links in emails? I get people putting screenshots in powerpoints, but this is a step beyond

18 favourites 0 retweets

In reply to @christianp

Now imagining the cursed corporate email system that forbids links in emails "for security", but allows powerpoint attachments so anyone can get their work done.

4 favourites 0 retweets

In reply to @panlepan

@panlepan @ColinTheMathmo I also do this, and am also quickly shouted down

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Simon Plouffe has found a sequence of 565 primes in 'geometric progression' (meaning they're the closest integers to the first 565 terms of a geometric sequence)
Wowza!
Some explanation at plouffe.fr/NEW/Formula%20…

8 favourites 6 retweets

In reply to @Shona_Mu

@Shona_Mu Yes! I've sometimes felt like I need someone, even just one person, on the other side of the screen to direct my talk to.

1 favourite 0 retweets

I'm at the "linter reports 3000 problems with the documentation" of preparing a code release

1 favourite 0 retweets

In reply to @ben_nuttall

@ben_nuttall I thought I hadn't made a YouTube account until quite late on, but it seems I beat you!

1 favourite 0 retweets

If you feel like you need to make a visual statement of (1) your beliefs and (2) your mega-nerdity, @realKatePoirier's brilliant "Math for equality" badges and shirts are just the thing: zazzle.co.uk/store/mathfore…
They're expensive but that's because the proceeds go to @BEAMmathHQ

11 favourites 4 retweets

In reply to @AudiC

@AudiC @MinoritySTEM @ch_nira @aperiodical I've encountered more than enough professional mathematicians who claimed not to know of any notable Black mathematicians

2 favourites 0 retweets

I have started writing the release notes for @NclNumbas v5.0!

2 favourites 1 retweet

Where do UK people buy computer bits from when avoiding amazon? Specifically, I want a USB webcam. Options less heinous than Argos and Curry's, please. Back in the day it was dabs, but that seems not to exist any more

4 favourites 3 retweets

In reply to @TimandraHarknes

@TimandraHarknes Thanks! But it looks like they've sold out of webcams

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In reply to @matheknitician

@matheknitician Yeah, I did but the framerate was quite low. I have a webcam on my laptop but I want something higher quality

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I'm going to try making plaited bread. This will involve some group theory.
Follow along with me!
First, here's some dough that I've left to rise and just knocked back

18 favourites 6 retweets

In reply to @christianp

I've divided it into 8 by cutting in half three times

1 favourite 0 retweets

In reply to @christianp

Now I've rolled the bits into strands of equal length.
OK, similar length.

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In reply to @christianp

Next I have to connect them up like this, which reminds me of that puzzle about the hydra that I can never solve.

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In reply to @christianp

Your man Paul says: "Step 1: place 8 under 7 and over 1 Step 2: place 8 over 5 Step 3: place 2 under 3 and over 8 Step 4: place 1 over 4 Step 5: place 7 under 6 and over 1"
I need to label these tentacles

2 favourites 0 retweets

In reply to @christianp

That looks like this. I think. I might not have done exactly the right thing, but I've definitely done some overs and unders.
To answer a comment: the numbers refer to positions, not tentacles, so you relabel after each step

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In reply to @christianp

So the immediate question is: where did each strand end up?
The steps are, in permutation notation (I say where each strand ends up) :
(2,3,4,5,6,7,8,1)
(1,2,3,4,6,7,8,5)
(1,8,2,3,4,5,6,7)
(2,3,4,1,5,6,7,8)
(2,3,4,5,6,7,1,8)

1 favourite 0 retweets

In reply to @christianp

You can work out the final permutation by applying those in turn, to get:

(8,4,5,6,7,1,2,3)

So things don't end up where they started.

So... how many times do I have to do this to get them back where they started?

1 favourite 0 retweets

In reply to @christianp

(brief intermission while some parenting happens)

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In reply to @christianp

One dance recital, one full potty and a cuddle later, I'm back!

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In reply to @christianp

This cycle includes every strand, so I don't get to do a fun bit of maths. I was hoping it'd be several disjoint cycles - cycles that don't share any strands.

This cycle is 8 elements long, so if I apply it 8 times I get back where I started.

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In reply to @christianp

You can write that permutation, (8,4, 5,6,7,1,2,3) as a cycle: now (a, b, c) means "a goes to b goes to c goes to a"

That is:
(1,8,3,5,7,2,4,6)

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In reply to @christianp

If the permutation *had been* a product of disjoint cycles, I could use a cool fact to work out how many times I need to apply it: the least common multiple of the lengths of all the cycles.

That's what I get for trying to apply maths in the real world...

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In reply to @christianp

Fans, I forgot to keep count. Let's say I did it a multiple of 8 times so everything's back where it started.

(ignore the big mush of I-got-bored at the end of this plait)

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In reply to @christianp

The Proof and the Pudding by Jim Henle
press.princeton.edu/books/hardcove…

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In reply to @christianp

We'll see if the bread is as good as the maths!

Some books about maths and baking:

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In reply to @christianp

That's it! I'll try to add a photo when it's baked.

1 favourite 0 retweets

In reply to @christianp

And How to Bake Pi by Eugenia Cheng
profilebooks.com/how-to-bake-pi…

1 favourite 0 retweets

In reply to @christianp

lol 🌈

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In reply to @eqdynamics

@eqdynamics If I was applying my master's thesis, I'd show that it was impossible to undo the permutation.

Oh, wait.

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#ff for everyone who took part in the #BigMathOff this year:

(tweet 1 of 2)
@alephJamesA @mathforge @matheknitician @BiggestTriangle @K_Severn @pogonomaths @samjshah2 @ZoeLGriffiths @kyledevans @El_Timbre @SamHartburn @TedG @honeypisquared @ZenoRogue @peterrowlett

19 favourites 6 retweets

In reply to @christianp

@alephJamesA @mathforge @matheknitician @BiggestTriangle @K_Severn @pogonomaths @samjshah2 @ZoeLGriffiths @kyledevans @El_Timbre @SamHartburn @TedG @honeypisquared @ZenoRogue @peterrowlett #ff for everyone who took part in the #BigMathOff this year:

(tweet 2 of 2)
@heavymetalmaths @mscroggs @icecolbeveridge @intersectarian @PeterKagey @wsbarhem @alexcorner @VickyMaths1729 @markdcloud1 @FergusPowell @MarHarStar @jamestanton @Clare_L_Wallace @KarenCampe @TeaKayB

15 favourites 4 retweets

In reply to @christianp

@alephJamesA @mathforge @matheknitician @BiggestTriangle @K_Severn @pogonomaths @samjshah2 @ZoeLGriffiths @kyledevans @El_Timbre @SamHartburn @TedG @honeypisquared @ZenoRogue @peterrowlett @heavymetalmaths @mscroggs @icecolbeveridge @intersectarian @PeterKagey @wsbarhem @alexcorner @VickyMaths1729 @markdcloud1 @FergusPowell @MarHarStar @jamestanton @Clare_L_Wallace @KarenCampe @TeaKayB and again for my indispensable helpers, who did so much admin to keep things ticking all along: @alephJamesA @SamHartburn @mathforge and @stecks

19 favourites 2 retweets

This is a highly intriguing integer sequence entered into the OEIS by Scott Shannon oeis.org/A328680
I didn't rediscover it: I chopped the first 1,000 terms off a completely different sequence, and that was the only hit. I have no reason to believe there's a link. How odd!

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @icecolbeveridge @WrongButUseful brb, getting "Bigger than the Beatles (under certain choices of metric)" printed on a t-shirt

1 favourite 0 retweets

Tweet 1 of this thread mentions a person I've had enough of, but the rest of it is a brilliant argument for trans inclusion twitter.com/NMRLPH/status/…

5 favourites 0 retweets

Petition: Introduce Mandatory Ethnicity Pay Gap Reporting petition.parliament.uk/petitions/3001…

1 favourite 1 retweet

Once I spent most of a metro journey agonising over what to do, weighing up my own beliefs against others' rights, then just before we got to haymarket I very discreetly peeled a national front sticker off the window next to me.
Wish I was as brave as the statue topplers

13 favourites 0 retweets

While gathering links for today's school EDI meeting, I came across this ace article by @drchris_maths on Gurruṯu, which I always mention as a great example of a dynamical system but can never remember the details of: teachermagazine.com.au/articles/indig…

4 favourites 1 retweet

The batch number on my shampoo bottle is 9⁴.
#ShowerThoughts

3 favourites 0 retweets

In reply to @christianp

And to think some people have the impudence to ask what's the point of divisibility tricks!

3 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees How often do you do this?

1 favourite 0 retweets

In reply to @NowOverAndOut

@NowOverAndOut glitch.com gives you a terminal.

2 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees yeah, I'm interested but don't have the spare time this Thursday

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @close It's not in the OEIS! 🤯

0 favourites 0 retweets

In reply to @benjamindickman

@benjamindickman @DavidKButlerUoA @close Ah, I had 19 in it, which was wrong

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I've taken the day off normal work to support the #Strike4BlackLives #ShutDownSTEM, but I've got the 2yo all day, so I need something to do in my head. I'll try planning my 'inclusive e-assessment' talk for @EAMSConf

4 favourites 0 retweets

I want to try this with other triangle centres, particularly ones that can go outside the triangle t.co/LitEuD6EgX

3 favourites 0 retweets

Pogs! Memories!
Who else got a set of Sunderland City Council pogs from school with messages about refuse collection and libraries? t.co/OPuGoXwWfd

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This is one of the first paintings I can remember noticing and appreciating. Such a calming scene. twitter.com/LaingArtGaller…

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When we started planning to run @EAMSConf online this year, one of my main reasons was how hard it is for many to travel to the UK.
We've had more international registrations than normal, but still largely UK, EU and USA.
I want to do more to reach outside this bubble.

1 favourite 1 retweet

In reply to @christianp

So, please spread the word: @EAMSConf is a free, entirely online conference about e-assessment in mathematical subjects, largely focusing on open source software. It starts 22nd June. More info at eams.ncl.ac.uk

2 favourites 7 retweets

In reply to @chalkdustmag

@chalkdustmag @SparksMaths sorry, the version of me that has abundant spare time isn't on twitter

3 favourites 0 retweets

I keep seeing photos of 'packed' beaches and parks in the news. I'd like to see how that compares to the density of people in a terraced street. If the walls weren't there, what would it look like?

0 favourites 0 retweets

Problem: people signing up for a conference sometimes make typos in their email address.

Solution: bulk email the entire participant list, and wait for "message undelivered" responses.

4 favourites 0 retweets

In reply to @permutans

@permutans here's my code: gist.github.com/christianp/a92…
Looks like a pretty brute force program!

2 favourites 0 retweets

Currently stuck in a very British conversation that could be replaced by the following program:

10 ECHO "Great, thanks."
20 GOTO 10

2 favourites 0 retweets

In reply to @El_Timbre

@El_Timbre Great, thanks.

1 favourite 0 retweets

In reply to @aperiodical

@aperiodical A #piku about the sum of the reciprocals of the square numbers:

π × π
is
six times greater

4 favourites 0 retweets

In reply to @k_houston_math

@k_houston_math I'm going to hang on until we're back with the quadrivium

0 favourites 0 retweets

Very much enjoying using @explainevrythng to record my @EAMSConf talk.
First run through, with lots of pauses and umms, took 10:51 of my allotted 10:00. Not bad!

1 favourite 0 retweets

My turbo professional @EAMSConf hosting setup.

1 favourite 0 retweets

Mathematicians working in French universities: do you do any kind of computer-based assessment? What systems do you use?

4 favourites 6 retweets

In reply to @christianp

Mathématicien(ne)s travaillant en universités françaises: est-ce que vous faites des évaluations sur ordinateur? Quels systèmes utilisez-vous?

0 favourites 2 retweets

The difference between necessary and sufficient conditions: they say only mad dogs and Englishmen go out in the midday sun, but while this Englishman is happy to go out, my mad dog is not.

4 favourites 2 retweets

In reply to @christianp

Je voulais peut-être dire 'devoirs', je ne sais pas le mot juste

0 favourites 0 retweets

In reply to @mathforge

@mathforge @bbarber_ @peterrowlett "The Haskell road to logic, math and programming" (staff.fnwi.uva.nl/d.j.n.vaneijck…) is very good. There seems to be a PDF on Kees Doets' homepage

1 favourite 0 retweets

Me: storytelling is a wonderfully creative activity. Starting from a basic plot I can refine the story each time I tell it.

The toddler: if you so much as change one word from last time I swear I won't sleep until 2050

18 favourites 0 retweets

How high does zoom's market cap have to get before they let you use a 24-hour clock in the date picker?

1 favourite 0 retweets

In reply to @northumbriana

@northumbriana @NewcastleMedSch Me too! How much worse than chance did you do on the rearranging-colours task?

0 favourites 0 retweets

What do you think the difference between "Maybe" and "Not sure" is?

8 favourites 3 retweets

In reply to @christianp

The council cabinet has 10 members. "Balance" would be 5 men and 5 women (assuming a gender binary...)

What are the chances of exactly that happening in a meritocracy? Just under 25%. Far from odds on! (wolframalpha.com/input/?i=10+tr…)

0 favourites 0 retweets

Let's take Greg in good faith and suppose he wants a meritocracy, where gender isn't considered.
So each position has a 50% chance of being filled by a woman. (1/N)
twitter.com/nick_forbes/st…

4 favourites 2 retweets

In reply to @christianp

Of course, there is widespread gender bias, in favour of men, so this cherry-picking is either ignorant or dishonest. It's certainly not evidence that there's a problem of too many women.
You can make just about any stat you like with a small enough sample.

4 favourites 0 retweets

In reply to @christianp

The chance of having 7 or more women is just over 17%. (wolframalpha.com/input/?i=10+tr…)

So even if there was no gender bias, you'd expect 1 in 6 councils in the country to look this imbalanced (or 1 in 3 if you include imbalance the other way, with 7 or more men)

0 favourites 0 retweets

In reply to @FergusPowell

@FergusPowell Zoinks! What does your supervisor do? I'd hope every supervisor would recommend a reference management system these days

0 favourites 0 retweets

In reply to @ptwiddle

@ptwiddle @FergusPowell I bet you've got a hand-me-down TeX template as well, you monster

1 favourite 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths I'd really like a public spreadsheet listing named theorems or objects, next to alternative names. Might set that up

4 favourites 0 retweets

In reply to @roger_mansuy

@roger_mansuy J'aime beaucoup le fer à repasser! Je vais l'utiliser moi-même.

1 favourite 0 retweets

In reply to @roger_mansuy

@roger_mansuy Incroyable

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs @pecnuts never mind hats, did you know there's a latex package for ironing symbols? twitter.com/roger_mansuy/s…

2 favourites 0 retweets

In reply to @christianp

No idea why my phone completed @Pecnut to @pecnuts

0 favourites 0 retweets

In reply to @LucasVB

@LucasVB But I have ℵ₁ wishes

9 favourites 0 retweets

In reply to @sangwinc

@sangwinc That's brilliant. It winds me up that my daughter's alphabet jigsaw is cut so that some letters can fit in more than one place.

0 favourites 0 retweets

This is a very good book twitter.com/robotmaths/sta…

0 favourites 0 retweets

I've just delivered my talk on inclusive e-assessment at @EAMSConf. The video, transcription, and references are online at staff.ncl.ac.uk/christian.perf…

6 favourites 3 retweets

In reply to @robeastaway

@robeastaway A knowledge of the rule for deciding who serves is what I'm lacking

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In reply to @robeastaway

@robeastaway can I wave my hands at having identified that point and say I've solved the problem? Feels a bit like that joke about the mathematician who wakes up to find a fire in his room

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston @panlepan I've definitely looked askance at 39 in the past

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge which episode?

1 favourite 0 retweets

They said: Cauchy-Schwartz.

YouTube heard: koshish warts.

6 favourites 0 retweets

@katemath wow. "Deeply problematic" is an understatement!

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July

My "mathematicians for inclusion" and "mathematicians for change" stickers have finally arrived!

16 favourites 0 retweets

In reply to @christianp

They're by @realKatePoirier and you can get your own at zazzle.com/store/mathfore…

3 favourites 0 retweets

In reply to @aperfect

@aperfect "story"

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About to discover if I can send an email BCCed to over 400 people

3 favourites 0 retweets

In reply to @christianp

Based on the number of out of office replies I'm getting, it looks like the answer is yes

2 favourites 0 retweets

Explain why you'll never have to carry a 9 when doing long multiplication

5 favourites 0 retweets

In reply to @FergusPowell

@FergusPowell @gloombario Yep, that's the unexpectedly awkward wrinkle I wanted to share

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb I worry that if someone in a restaurant kitchen is contagious, they're going to infect a lot more people than just the other staff

0 favourites 0 retweets

In reply to @mathsjem

@mathsjem @El_Timbre I'm a big fan of those pictures.

3 favourites 0 retweets

Not a single place name on this map sounds real.

4 favourites 0 retweets

That's nowhere near an accurate transcription of this video but now I''ve got the opening lyrics for my new album

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @MathforLove @JSEllenberg Yeah, I've got no idea where the red text is

0 favourites 0 retweets

Supperman.
#AddALetterImproveASuperhero

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I'd like to share some thoughts from @EAMSConf, which ran a couple of weeks ago, to help anyone else running an online conference.

We were lucky that we'd decided to do everything online back in January, so all the hard thinking was done before lockdown started.

4 favourites 3 retweets

In reply to @christianp

We decided to go online because of the subject of the conference (e-assessment) but also in order to include more people around the world who would find it hard or impossible to get to Newcastle for a physical conference.

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In reply to @christianp

Having decided to move online, we realised that the normal format of a couple of days packed with activities wasn't necessary or even desirable. Unlike travelling to another city, there's nothing stopping you just abandoning an online conference halfway through.

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In reply to @christianp

Travelling for a conference is a huge burden in time, energy and money, even when you don't need a visa. Personally, I'm restricted in what I can attend because Ehlers-Danlos syndrome leaves me shattered after a day of travel and standing talking.

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In reply to @christianp

So, we set a hard rule of two one-hour live sessions each day, at 9am and 4pm, spread across eight days instead of the normal two.
I think that worked really well, and the feedback from attendees agrees.

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In reply to @christianp

And, as most of us have discovered since, staring at a video call all day is knackering. There's also a timezone problem: there are only short times in the day when the UK working day overlaps with the Americas or the far east.

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In reply to @christianp

All questions were taken through the course website using a stackoverflow-like interface, rather than Zoom. This worked brilliantly. It let moderators carefully pick and reword questions, rather than the mess of unmuting people, and conversation could continue afterwards.

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In reply to @christianp

In the live sessions, we had a chair who introduced speakers and read out questions at the end, and someone else (always me) who played out pre-recorded videos via screen share. This worked better than expected! I forgot the sound a couple of times, but nothing terrible happened.

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In reply to @christianp

A lot of the talks were pre-recorded. I think maybe they should all have been. A couple of the non-recorded talks had technology problems, in spite of our efforts to rehearse beforehand.

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In reply to @christianp

We initially planned for more interactive sessions, such as workshops for the popular systems, but they made way for more talks. I think we should have made sure to keep them. There was very little of the sort of casual discussion you get at break times in a physical conference.

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In reply to @christianp

(We used the MoodleOverflow plugin: moodle.org/plugins/mod_mo…)

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In reply to @christianp

"Main", for conference info, general discussion, and reference. The general questions MoodleOverflow was used a bit, but the standard forum and wiki-style reference not at all.
There was an "introduce yourself" glossary which a few dozen people used, but nothing happened with it.

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In reply to @christianp

For non-Zoom activity, we set up a Moodle environment. It worked brilliantly, but some bits were used less than I hoped. We really wanted to give attendees an opportunity to see in action the systems we were talking about.
I set up four areas:

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In reply to @christianp

"Talks", with a link to the zoom meeting, recordings of all the sessions and individual talks, the question areas, and associated material such as slides. This worked very well.

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In reply to @christianp

"Play area", where everyone was enrolled with teacher privileges. I hoped that people would use this to try out the systems we had access to or show off things arising in discussion, but nobody touched it. We'll have to rethink how this should work next time.

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In reply to @christianp

"Software demos", with a course for each system being presented. There was a MoodleOverflow questions section for each system, which was well-used.
The stats show that only a couple dozen attendees clicked on anything in these sections.

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In reply to @christianp

I don't know how much people who didn't attend live sessions engaged with the non-live material. None of the recordings had more than 60 views at the end of the conference.
We were advised to expect about a quarter of people who signed up to actually attend live sessions.

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In reply to @christianp

We kept registration open throughout the conference. We had just over 300 registrations on the morning it started, and 420 by the end. Attendance in the live sessions was in the 80s early on, down to around 60 by the end.

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In reply to @christianp

Feedback from attendees: they really liked the stretched-out format, and the short sessions. Most made use of the recordings. Many missed the ad hoc discussion you get in person.

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In reply to @christianp

All the videos went on a YouTube channel (youtube.com/channel/UCMN_1…). Every video was initially unlisted, available only through the conference website. Now they're published and linked from the conference website: eams.ncl.ac.uk/programme/

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In reply to @christianp

In conclusion: A++ would do it this way again.

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In reply to @k_houston_math

@k_houston_math Massive school run envy.

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I think I gave my brain a stitch. twitter.com/Mathgarden/sta…

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In reply to @d_yellowlees

@d_yellowlees Dramatic late entrance, say nothing, write one word on blackboard, wait for applause

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In reply to @statto

@statto Another benefit is it'll mean we finally have a real-world analogy for those infuriating coin-weighing puzzles

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In reply to @alisonkiddle

@ajk_44 How many spikes?

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I have just learnt about unicode property escapes in regular expressions. Wow! developer.mozilla.org/en-US/docs/Web…

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In reply to @AmyJCast

@AmyJCast @c0mplexnumber @amanda_l_austin I didn't know I needed flowery Columbus cubes in my life!

1 favourite 0 retweets

In reply to @HappeLab

@HappeLab I find video meetings more comfortable but also more tiring.

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In reply to @C_J_Smith

@C_J_Smith Weirdo

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In reply to @bundlegerbe

@bundlegerbe @monsoon0 @nhoskee I suggest we call them Lawson numbers

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Endlessly proud of Mrs L-P. On consecutive days she has voluntarily spotted a prime number *and* a fencepost error!

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In reply to @InertialObservr

@InertialObservr @SLSingh did Simon share it somewhere?

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In reply to @TimahR_S

@TimahR_S @standupmaths @InertialObservr @SLSingh The most common wrong answers are, in decreasing order of frequency:
51,57,39,1,63,5,69,49,59,79

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In reply to @mathsjem

@mathsjem @greg_roberts86 @MissStokesMaths did it go away?

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In reply to @greg_roberts86

@greg_roberts86 @mathsjem @MissStokesMaths At first glance I thought you were saying your score was 143 and I nearly had a heart attack!

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In reply to @peon47

@peon47 @lukemckinney The short answer is, lots of statements are simpler to state if 1 isn't prime.
For a longer answer, there's this good history paper: arxiv.org/abs/1209.2007v2

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In reply to @LauraKTully

@LauraKTully @SLSingh Crikey, tell your 8 year old he did better than I did, and I made the thing!

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In reply to @icecolbeveridge

@icecolbeveridge @evelynjlamb BRB, writing an expository essay about this expository essay about an expository essay.
(Evelyn's post is probably where I first picked up the Caldwell reference)

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In reply to @MissStokesMaths

@MissStokesMaths @mathsjem @greg_roberts86 It's great fun getting a class of kids to shout 'yes!' and 'NO!!!' while one of them attempts to play the game on the projector

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"The swing didn't stop, daddy! I wonder why..."

I'll take that as 90% of a law of motion from the toddler. They say just asking the right question is the hardest part of science, don't they?

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In reply to @evelynjlamb

@evelynjlamb So cool!
I had a tantrum trying to sew a mask, so my 2 year old will have to remain unmatched

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In reply to @JWGarratt

@JWGarratt @SLSingh Well done! Was that with the standard time limit?

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Next door are having a new conservatory built.

Me, a genius: today I will subtitle two hours of video.

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In reply to @RobertTalbert

@RobertTalbert I completely agree that we need to trust students rather than set up more barriers, but I don't agree that the incentive to cheat goes away. If I as a student don't want to do any work, I can still get someone else to do it for me under mastery grading.

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In reply to @northumbriana

@northumbriana I thought this photo might get me closer to understanding a tiny niggle that's bothered me for years, but I don't think it does.
Why do the house numbers on Sandringham Drive start at 8? There's nowhere for numbers 1 to 7 to fit even if they had once existed and been demolished

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Oooooooh twitter.com/ehardy21/statu…

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wow, the Executable Book Project looks good: executablebooks.org/en/latest/
Even on its own, having Sphinx's features with markdown syntax is so good!

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@ChronInvisSTEM Who says it doesn't get to go in your CV?

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@ChronInvisSTEM You're a nonstandard person! The kind of person they should hire!

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I've seen some combinatorial underestimates on packaging before, but this one looks particularly low.
#TheyDidntDoTheMath

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In reply to @DrCaroSummers

@DrCaroSummers In that case, they could have put it as "the vast majority of these clothes clash with each other!"

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In reply to @jjaron

@jjaron I watched the whole thing recently. It's a quality film!

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In reply to @evelynjlamb

@evelynjlamb "Maybe the real roots of the function were the friends we made along the way..."

<gif from the end of Buckaroo Banzai>

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In reply to @alisonkiddle

@alisonkiddle Too many worms. Steering clear of this.

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Oh, it's π approximation day, 22/7. I nearly didn't notice!

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An estimation problem: how many tweets do you see each day?
I'm tempted to say "wrong answers only", but I'd actually like to know the right answer. So, do either, and it'll be fun to guess which is which

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In reply to @dichigedamaar

@dichigedamaar @garima_1909 It's a very high score, but not quite the highest. Well done!

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Oh my god, I've just remembered I've been waiting since March for a rheumatology appointment twitter.com/chronicallycal…

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In reply to @JanvierUK

@JanvierUK SUPERSLUG!!!

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In reply to @mscroggs

@mscroggs @peterrowlett @HappyApproxDay You've given yourself space to improve.

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Once I spent ages looking for my keys, but then I found them in the last place I looked twitter.com/fermatslibrary…

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In reply to @k_houston_math

@k_houston_math @fermatslibrary I'll guess 'something to do with catastrophe theory'

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Just realised my GCSEs are old enough to do their A Levels

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We're about to see a spate of newspaper stories featuring people who think 0 is both even and odd, again. twitter.com/NewcastleCC/st…

9 favourites 1 retweet

In reply to @peterrowlett

@peterrowlett @stecks Ah yes, the fiendish villain known as Batman's Complement

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August

10:24. Gotta love it

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In reply to @christianp

I have a friend who calls 10:24 "2 to 10". I think it's a brilliant way of getting people to turn up half an hour early

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In reply to @JimPropp

@JimPropp I think this was an abuse of grammar to make the pun work. It took me a while to work out what he meant.

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Skilfully dodged the two odd numbered days in a row problem last week! twitter.com/NewcastleCC/st…

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I'm sure this must already be a thing, but I can't come up with the right google words to find it, so I've made my own:
A tool to take a subtitles file and a video and make a page showing the transcript alongside the video itself.
github.com/christianp/tra…

1 favourite 1 retweet

In reply to @christianp

At the moment it just copes with Vimeo, because that's where the two videos I want it for are hosted.
Here's one of them: numbas.org.uk/talks/numbas-t…
I have a load of @EAMSConf talks on YouTube, so I'll support that next

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In reply to @christianp

@EAMSConf I'd like to know if this is worth having, and if it is, how it could be improved.
I'm particularly interested in accessibility: is it usable with a screenreader?

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In reply to @permutans

@permutans I don't think any of the results there do what I want - display a video along with the transcript

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Does it bother anyone else that this says x1 and then 1x?

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In reply to @ZenoRogue

@ZenoRogue @ProfKinyon The - is a list marker, not a minus sign

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Me: Today I will get some good honest work done.

Everyone I've ever had any sort of professional dealing with: <just an unremitting stream of nonsense>

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In reply to @christianp

If you emailed me today, I value and cherish every interaction with you.

It's just, in aggregate, it's all a bit much.

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In reply to @honeypisquared

@honeypisquared What

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In reply to @JanvierUK

@JanvierUK keep watching Robin Hood until they cut you off?

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It's 5/8, or Almost The Worst Approximation to Φ day!

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In reply to @mscroggs

@mscroggs on a related subject, I can't remember if it was you that told me about this, but just in case it wasn't: have you seen the Ramanujan machine? Lots of nice continued fractions for constants: ramanujanmachine.com

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How many decimal digits would it take to write down the number of hamburgers you've eaten so far?

4 favourites 2 retweets

In reply to @robinhouston

@robinhouston I can describe an algorithm, but it won't be fast

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In reply to @robinhouston

@robinhouston @RAnachro yep, that's what I had in mind

1 favourite 0 retweets

In reply to @ccppurcell

@ccppurcell God help me if I ever try to hire anyone based on their answer to a question like this

2 favourites 0 retweets

In reply to @NewcastleEduca1

@NewcastleEduca1 @UniofNewcastle @Tegglington @NclNumbas @NCLMathsStats This isn't a work account, but thanks!

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"Daughter, are your knickers wet?"

"No, daddy!"

Turned out she didn't have any on.
Vacuous truth: the last refuge of the scoundrel.

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Chillies! Grown outside! In the North of England!
#SpicyMiracle

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I've had answers of 1, 3 and 4 digits. Can anyone credibly answer 2 or 5? twitter.com/christianp/sta…

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Rats, my brilliant plan to use just the right amount of annual leave has been scuppered by a bank holiday.

*yells in unpaid work*

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In reply to @MrBsMaths

@MrBsMaths @mathsjem @Just_Maths @tessmaths There are tonnes. I make one, aimed at Higher Ed but also usable at secondary: @NclNumbas

2 favourites 1 retweet

In reply to @JimPropp

@JimPropp I think I have seen this book in a second hand book shop!
But sorry, I can't remember any more details than you already have.

2 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I think you might be missing some context: meaww.com/brooklyn-new-y…

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Apart from anything else, I really like that cover twitter.com/DrEugeniaCheng…

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@NathanielProf @DisabledStem @ChronInvisSTEM Converting to HTML is the best thing to do. PDF is really only good for print. There are loads of tools that will do it automatically. Pandoc and PlasTeX are two.

1 favourite 1 retweet

Ableism: assuming everyone can access your lectures.

Abelism: assuming it doesn't matter what order you deliver them.

16 favourites 1 retweet

In reply to @bbarber_

@bbarber_ Nomacs is alright. Works a lot like irfanview on windows

1 favourite 0 retweets

@NathanielProf @DisabledStem @ChronInvisSTEM You can make a single HTML file, which can be uploaded to Blackboard. I can put together some instructions tomorrow

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@NathanielProf @DisabledStem @ChronInvisSTEM With pandoc, you need to explicitly ask for mathjax with the --mathjax command line option

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In reply to @panlepan

@panlepan @geogebra @christianmercat c pas moi!

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In reply to @FryRsquared

@FryRsquared I wonder if "A Level algorithm" will enter common use as a shorthand for a statistical error, like the tank counting and damaged bomber problems from WW2.

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A helpful message added by IT to the bottom of an email thread in my inbox: "Warning: this message came outside from the university".

One problem: my university, or theirs?

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I have a user interface problem that I hope isn't only solved by adding yet another option for authors to understand.

Student types a mathematical expression. We want to allow implicit multiplication, so `xy` is interpreted as `x*y`.
What to do about `pi`? Is it `p*i` or `π`?

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In reply to @christianp

My guess is that most of the time, you'd expect it to be interpreted as π. But it's completely reasonable that you might be doing something with complex numbers, and `p*i` is really what you meant.
I suppose rendering π would at least give you a hint to add the * symbol

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In reply to @GhostMutt

@GhostMutt It doesn't replace what they type - there's a plain text input field, and a graphical rendering of the interpreted expression next to it. The interpreted expression is then marked.

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In reply to @GhostMutt

@GhostMutt I do, but that's not something I want to do

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In the vein of "Falsehoods Programmers Believe About Names", I'd like to read "Falsehoods Politicians Believe About Statistics".

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In reply to @christianp

If you haven't seen the thing about names, it's by @patio11 and I highly recommend it: kalzumeus.com/2010/06/17/fal…
And there's a list that makes me think every belief held by programmers is false: github.com/kdeldycke/awes…

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In reply to @christianp

I'll start the list of Falsehoods Politicians Believe About Statistics. Please add in your own!

1: The success of a policy objective can be measured.
2: There's only one way of measuring success.
3: If the average has increased, everything has increased.

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In reply to @christianp

* A 5% decrease followed by a 5% increase is a net zero change.

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In reply to @christianp

For reference, @Desmos does implicit multiplication for most letter pairs, but replaces 'pi' with the symbol π. Pressing backspace just deletes the entire symbol. You have to type 'p*i' to get the product of p and i.

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In reply to @christianp

@Desmos @geogebra also does implicit multiplication most of the time, and 'pi' is interpreted as 3.14... but it isn't replaced with the symbol.

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I've got a half-written @aperiodical post titled "The Enormous Difficulty of Telling the Truth with Statistics" that was mainly about @My_Metro escalators. The alevelgorithm might prompt me to finish it.

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In reply to @marcuswu

@marcuswu I think you're solving the parsing problem, which isn't as hard. What I'm concerned about is the practicality of students using this - they shouldn't be expected to understand how the parser works. They're often shown juxtaposed letters meaning multiplication, so they do it too

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In reply to @Tony_Mann

@Tony_Mann And 'sin2x' could be just about anything. This is a rabbit hole I don't want to spelunk in!

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Add a frisson of peril to statements of fact with the word 'currently'!

My house is currently two miles inland.
Money can currently be exchanged for goods and services.
The official language of France is currently French.

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In reply to @christianp

This tweet was prompted by the realisation that we often say "the current Government" but never "the current Royal family"

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In reply to @christianp

There are currently 24 hours in a day

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In reply to @NclNumbas

@NclNumbas This is a convenience feature that arose from writing this year's exams - quite often we had questions with several scenarios, each with multiple corresponding bits of data.

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In reply to @christianp

@NclNumbas The variable generation consisted of making lists of the values for each scenario, picking a list at random, then assigning each item from the chosen list to a different variable. This change makes it possible to do all of that in one go.

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I've been seeing all sorts of doctors about why I'm so wobbly since I was 17. Now 34, and we've narrowed it down to "maybe Ehlers-Danlos, see a rheumatologist". twitter.com/_SamBosworth/s…

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My computer's processor uses 64 bit addressing AND chessboards are made of 64 squares, each either black or white, BUT I have yet to see a tool which shows my computer's memory layout using chessboards.
#SortItOut

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In reply to @apgox

@apgox Henry Ford has two motorised contraptions named after him: the car and the vacuum cleaner.
😐

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I'm alarmed to discover I want to learn more about alarms twitter.com/alicecbennett/…

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In reply to @extremefriday

@extremefriday What are all the smoke detectors for? Do they hold a vote?

In undergrad, I lived in a flat whose smoke detectors seemed to be tuned to "someone thought about making toast"

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Today I planned to write a series of introductory @NclNumbas tutorials.

Four hours later, still on the first one: nobody has ever given a correct answer to a maths question, and I don't think anyone ever will.

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In reply to @christianp

@NclNumbas 90% of my time has been spent trying to find ways around writing "I'm sorry you have to touch a computer in order to make this happen."

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In reply to @christianp

@NclNumbas I think the root of the problem is I'm trying to anticipate every possible objection to anything I recommend. Maybe I should just write out a list of instructions, then deal with pedantic objections at the end of the document

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In reply to @jamesgrime

@jamesgrime @icecolbeveridge @njj4 *reclusive millionaire superhero Binary Man takes a long, hard look at his finances*

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In reply to @MrBishopGeog

@MrBishopGeog "Is That A Big Number" by @itabn_andrew is sometimes good for comparing big numbers. It says it's 50 times the biomass of the Earth: isthatabignumber.com/itabn/compare?…

1 favourite 0 retweets

Over on mathstodon.xyz, our Mastodon instance for mathematicians, I've just implemented live LaTeX preview while writing a post.

6 favourites 0 retweets

In reply to @aperfect

@aperfect I can't remember ever actually playing that

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I've made a clock which runs through every permutation of a deck of cards, swapping one pair every second.
It's not very useful.
permutation-clock.glitch.me

24 favourites 3 retweets

In reply to @christianp

This nonsense brought to you by this nonsense: mathstodon.xyz/@christianp/10…

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Euler was born 57 years after Descartes died. twitter.com/MathType/statu…

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In reply to @christianp

I reckon they meant to say 'independently' instead of 'simultaneously'.
Now thinking about what other facts would be livened up by substituting one of those words for the other.

3 favourites 1 retweet

In reply to @Andrew_Taylor

@Andrew_Taylor @lunasorcery I'm disappointed that the software section is so wishy-washy. Surely public version control would allow someone to find a program whose source code doesn't have a single line in common with its first release

2 favourites 0 retweets

I'm getting strong DO NOT STEP ON THE DANGER GEOMETRY warnings from my hypothalamus while watching this twitter.com/RFJamesUK/stat…

2 favourites 0 retweets

In reply to @stecks

@stecks A model of mathematics is either complete or condescending. #ChangeOneWordAndRuinATheorem

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Frantically tidying things up before I go on annual leave followed by paternity leave!

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Why is outlook so insistent that I should write "must" instead of "has to" because it's more concise?

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I love it when I rediscover an integer sequence with an enormous OEIS entry: oeis.org/A008292

3 favourites 1 retweet

Six years after the last one, I've done another Aperiodical Round Up.
Now *that's* aperiodic! twitter.com/aperiodical/st…

1 favourite 0 retweets

In reply to @christianp

I've made a version which uses a deck of cards instead of emoji, and starts at the unix epoch instead of whenever you open the page: unix-permutation-clock.glitch.me

1 favourite 0 retweets

In reply to @lunasorcery

@lunasorcery I think knowing this was coming made it even better

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @matheknitician @MathsObjects Sorry, my fault yesterday while I was upgrading wordpress

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In reply to @peterrowlett

@peterrowlett I think that's enough to pass the stage 1 pure maths module

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In reply to @peterrowlett

@peterrowlett @matheknitician @MathsObjects fixed now, I think

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In a few days my wife's 99-year-old grandma will have 27 direct descendants down to great-grandchildren, meaning the Lawson family has an R rate of exactly 3

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In reply to @jjaron

@jjaron I know at least one has a Bacon number

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@DrElleOBrien @FryRsquared Ah now, the Perfect R rate is much lower!

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In reply to @benjamin_leis

@benjamin_leis Yep!

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Tribute to Sol LeWitt

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September

In reply to @colourblindorg

@colourblindorg I'd totally follow a twitter account that each day tweeted a different thing and told colourblind people what colour it is.

5 favourites 1 retweet

In reply to @soupie66

@soupie66 @colourblindorg Please stop. This isn't funny

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In reply to @NTCouncilTeam

@NTCouncilTeam @GoSmarterNT I wish I'd seen this a few hours earlier before I cleaned my bike!

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway That's a nice one

1 favourite 0 retweets

In reply to @samjshah

@samjshah I don't know what this means, but: a POGs round

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In reply to @cs_kaplan

@cs_kaplan @henryseg @thedicelab I came here to say this. Pity it has negative connotations because it's a strong pun

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In reply to @benjamin_leis

@benjamin_leis @mathforge @MrHonner @KarenCampe @UDMichy @geogebra @MathforAmerica Ooh, a Geogebra @elmlang binding might be a fun project

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I can't imagine what prompted this integer sequence: "Least multiple of n in which the n-th digit from left is 3."
oeis.org/A113558

6 favourites 3 retweets

Our second L-P is finally out. Early reviews describe him as "sleepy" and "cuddly".

56 favourites 0 retweets

@katemath Preferably with a clip of this scene from Good Will Hunting

0 favourites 0 retweets

twitter.com/christianmerca…

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The baby's stomach seems to be able to measure three hours to the second.
Is it too late to apply for the longitude prize?

11 favourites 0 retweets

In reply to @MathigonOrg

@MathigonOrg @Mathgarden I've encountered this kind of thing as well with @NclNumbas. I usually reply something like "we don't sell anything, I'm happy to answer any questions you have", but I think I'm less bothered about whether they use my software than you are

1 favourite 0 retweets

In reply to @FOTSN

@FOTSN @standupmaths numbergossip.com/34 says that 34 is the smallest number with the property that it and its neighbors have the same number of divisors.
It also says something @standupmaths probably already knows: 34 is the magic constant of a 4 by 4 magic square

2 favourites 0 retweets

In reply to @mscroggs

@mscroggs The Kevin Bacon Cinematic Universe

1 favourite 0 retweets

Can't foresee needing to recite an interesting fact about (15-4√2)/8), but in case I ever do, this entry now exists.
Try to guess what it is before you click on the link. I was nowhere near! twitter.com/Parcly_Taxel/s…

4 favourites 0 retweets

Is this a nephroid?

12 favourites 0 retweets

In reply to @bbarber_

@bbarber_ I'll take either of those over what my former colleague used to do: \;\;\;\,

1 favourite 0 retweets

In reply to @IRainsby

@IRainsby Alright Magritte, how've you been?

0 favourites 0 retweets

In reply to @HoeflerCo

@HoeflerCo Is that equals sign not in the same plane as the people? It looks like it's sneaking up on them

2 favourites 0 retweets

In reply to @HoeflerCo

@HoeflerCo Actually, now I can only see this: 😭

0 favourites 0 retweets

In reply to @mathhombre

@mathhombre I started writing "math is hard" to be provocative, but decided against. But since nobody suggested anything else, here it is.

1 favourite 1 retweet

In reply to @robeastaway

@robeastaway This is begging for empirical validation. Can it do better than an order of magnitude guess by eyeball? What's the right precision to use for the final estimate?

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway Yes, I'd be impressed with a number correct to 0.5 metres.
For very plump trees (or wide and deep houses), do you have a horizon problem, where you can't see the very top of the tree?

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Tweet me one word and I will reply with a related bit of mathematics.

(until I get bored or the baby needs attention)

29 favourites 8 retweets

In reply to @samholloway

@samholloway A cat chasing a mouse on a graph is a well-studied area of problems, e.g. "catching a mouse on a tree" read.somethingorotherwhatever.com/entry/Catching…

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Lava's conjecture states that "Giuga numbers are the solutions of the differential equation n' = n+1, where n' is the arithmetic derivative of n"
arxiv.org/abs/1103.2298

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson The song "badger badger badger" in its original form contains the word "badger" 45 times.
(sorry, I can try harder if this is not sufficiently mathematical)

3 favourites 0 retweets

In reply to @olliethinks

@olliethinks Each of these sandals has fundamental group ℤ³

1 favourite 0 retweets

In reply to @ionicasmeets

@ionicasmeets @stecks One of my favourite animals, but the most mathematical connection I can get is that it's name looks like what I say when asked to do a 180° turn: "OK, a π!"

2 favourites 0 retweets

In reply to @alancameron65

@alancameron65 @stecks "The Phillip Island penguin parade (a mathematical treatment)" by Serena Dipierro, Luca Lombardini, Pietro Miraglio, Enrico Valdinoci
arxiv.org/abs/1611.08715

1 favourite 0 retweets

In reply to @b_penders

@b_penders @ionicasmeets "Mathematics, morally" by @DrEugeniaCheng
eugeniacheng.com/wp-content/upl… (a PDF file)

1 favourite 0 retweets

In reply to @theclairodactyl

@theclairodactyl I hoped someone would ask for eggs! See this compendious collection of mathematical models for the shape of an egg, by Jürgen Köller: mathematische-basteleien.de/eggcurves.htm

2 favourites 0 retweets

In reply to @Manuel_do_rio

@Manuel_do_rio @stecks I mean, what do you want? My favourite homeomorphism?
Here's a mug that isn't homeomorphic to a doughnut: mathsgear.co.uk/products/extre…

2 favourites 0 retweets

In reply to @SvenHilbrants

@SvenHilbrants "A singular mathematical promenade" by Etienne Ghys is an excellent book about singularity theory (and lots of other things) arxiv.org/abs/1612.06373…

1 favourite 0 retweets

@BroekeNina @ionicasmeets That's two words, I think?

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@rob_m_curry "The hammer and nail phenomenon in mathematics education" by Kien H. Lim

files.eric.ed.gov/fulltext/ED573…

0 favourites 0 retweets

In reply to @ionicasmeets

@ionicasmeets @janbeuving Any advice before I lose an entire afternoon to this?

0 favourites 0 retweets

In reply to @Marijevhouw

@Marijevhouw @ionicasmeets "Mathematics applied to dressmaking" by Christopher Zeeman contains a fun anecdote about trying to make mathematical sense of a dress pattern
lms.ac.uk/content/mathem…

3 favourites 0 retweets

In reply to @edskeizer

@edskeizer @ionicasmeets The Levenshtein distance on strings is often used to find the closest correctly-spelled word to a typo en.m.wikipedia.org/wiki/Levenshte…

7 favourites 1 retweet

In reply to @IllestPreacha

@IllestPreacha "Treachery! When fairy chess pieces attack" by Christopher Hanusa and Arvind V. Mahankali
arxiv.org/abs/1901.01917
"We introduce a new 1D discrete dynamical system reminiscent of mathematical billiards that arises in the study of two-move riders, a type of fairy chess piece."

1 favourite 0 retweets

@BasHelpt @ionicasmeets "The mathematics of love" by @FryRsquared: ted.com/talks/hannah_f…

1 favourite 0 retweets

@logicmonkey0 @stecks Jim Fowler, Andrew Groot, Deven Pandya and Bart Snapp solve the "no three in a line" problem on a torus by computing Gröbner bases: arxiv.org/abs/1203.6604v1

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson I googled the lyrics and did not include the title

0 favourites 0 retweets

In reply to @louisabro

@louisabro @ionicasmeets Veel geluk voor te zoon!

1 favourite 0 retweets

In reply to @AlistairFrith

@AlistairFrith @stecks "no fibonacci" is a harder than "no graph theory" for leaves.

Avoiding both: here's what's claimed to be the first mathematical model for how buds grow into leaves youtube.com/watch?v=G4lLGT…

2 favourites 0 retweets

In reply to @Quantum__Walker

@Meromorphic_ I could go and dig up some biomathematics about how endorphins interact in the body, but instead I'll go with a lovely piece of music that produces endorphins in me: Two Dots by Lusine
youtube.com/watch?v=4iIvRX…

0 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths "Liars and their motivation", a series of puzzles in a blog post by Tanya Khovanova: blog.tanyakhovanova.com/2014/02/liars-…

2 favourites 0 retweets

In reply to @miclugo

@miclugo will this video on mathematical present wrapping by @stecks satisfy you? youtube.com/watch?v=NwmHHL…

2 favourites 0 retweets

In reply to @christianp

@AlistairFrith @stecks I'm coming back to this because I've just found the thing I first thought of, and I'm unlikely to get 'leaves' again: House of Leaves of Grass, a combinatoric poem: fugitivetexts.net/houseleavesgra…

1 favourite 0 retweets

In reply to @EmmaSManning

@EmmaSManning What's purple and commutes?

4 favourites 0 retweets

In reply to @ccppurcell

@ccppurcell @jjsanderson Unlike in set theory, there is often more than one empty sett.

3 favourites 0 retweets

In reply to @FranMaths

@FranMaths they say you either love marmite or you hate it. Intuitionist mathematicians reject the law of the excluded middle.
In "Meaning in Classical Mathematics: Is it at Odds with Intuitionism?", Karin Usadi Katz and Mikhail G. Katz consider infinitesimals with respect to intuitionism

2 favourites 0 retweets

In reply to @ViviennevdWalle

@ViviennevdWalle @ionicasmeets "Dynamical models of love" by J.C. Sprott
sprott.physics.wisc.edu/pubs/paper277.…
"This paper examines a sequence of dynamical models involving coupled ordinary differential equations describing the time-variation of the love or hate displayed by individuals in a romantic relationship"

2 favourites 0 retweets

In reply to @alephJamesA

@alephJamesA "Train sets" by Adam Chalcraft and Michael Greene proves that model train sets are Turing complete.
monochrom.at/turingtrainter…
I can do 'trains' again if needed.

5 favourites 2 retweets

In reply to @BracewellMr

@BracewellMr @stecks Paul Erdős offered cash bounties for solving mathematical problems. After his death, they were administered by Ron Graham. I'm not sure if anyone's taken over since Ron died this year.
Here's an article about them: quantamagazine.org/cash-for-math-…

3 favourites 0 retweets

In reply to @Pierelint

@Pierelint I feel there's something at the back of my mind that would be more appropriate, but I'll pick on "super" and give you "H-supermagic labelings for firecrackers, banana trees and flowers" which is pretty supercalifragilisticexpialidocious
arxiv.org/abs/1607.07911…

1 favourite 0 retweets

@dd4ta "Mathematics with a metamathematical flavour" by @wtgowers
dpmms.cam.ac.uk/~wtg10/metamat…

0 favourites 0 retweets

In reply to @sara_marine

@sara_marine Sticking to what you know, is it?

"Index of Lie algebras of seaweed type" by Vladimir Dergachev and Alexandre Kirillov
emis.de/journals/JLT/v…

1 favourite 0 retweets

In reply to @RamakerNiels

@RamakerNiels "Cool irrational numbers and their rather cool rational approximations" by Francesco Calogero
link.springer.com/article/10.100… (sorry, closed access)

0 favourites 0 retweets

In reply to @aa42john

@aa42john "The perils of birth weight--a lesson from directed acyclic graphs" by Allen J Wilcox
pubmed.ncbi.nlm.nih.gov/16931545/

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared "Why does women's fertility end in mid-life? Grandmothering and age at last birth" by Peter S. Kim, John S. McQueen and Kristen Hawkes
arxiv.org/abs/1906.12048
(link does not equal endorsement)

0 favourites 0 retweets

In reply to @theblub

@theblub Is that a word? I can barely see it

1 favourite 0 retweets

In reply to @theblub

@theblub "The accuracy of Buffon's needle: a rule of thumb used by ants to estimate area" by S. T. Mugford, E. B. Mallon and N. R. Franks.
academic.oup.com/beheco/article…

1 favourite 1 retweet

In reply to @honeypisquared

@honeypisquared I have a feeling I've seen this paper before in the context of an angry refutation.

0 favourites 0 retweets

In reply to @RichardElwes

@RichardElwes Rhombicuboctadodecahedron

1 favourite 0 retweets

In reply to @honeypisquared

@honeypisquared Looking forward to their follow-up paper, "Men: Why?"

0 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared en.m.wikipedia.org/wiki/Sokushinb…

0 favourites 0 retweets

In reply to @benorlin

@benorlin I can't do you a koala, but I can do you a kangaroo: "How long does it take to catch a wild kangaroo?" by Ravi Montenegro and Prasad Tetali
arxiv.org/abs/0812.0789v2

1 favourite 0 retweets

In reply to @TobyBailey

@TobyBailey "Haruspicy and anisotropic generating functions" by Andrew Rechnitzer
sciencedirect.com/science/articl…

0 favourites 0 retweets

In reply to @KerryLiles

@KerryLiles I hope you'll accept something that applies to any citrus: "Orange Peels and Fresnel Integrals" by Laurent Bartholdi and André G. Henriques.
arxiv.org/abs/1202.3033

0 favourites 0 retweets

In reply to @dandersod

@dandersod "Battling over barrels" by William Deringer in cabinet magazine is a brilliant essay on the development of calculus and statistics to establish the alcohol content of beer. Subscription required, sorry, but @cabinetmagazine is fabulous.
cabinetmagazine.org/issues/49/deri…

0 favourites 1 retweet

In reply to @PickAardvark

@PickAardvark Ramanujan was famously perspicacious. The most widely know examples of this was when he remarked that the number of Hardy's taxi, 1729, is the smallest integer that can be expressed as a sum of two positive integer cubes in two distinct ways.

1 favourite 0 retweets

In reply to @Rosalot

@Rosalot I can do you another fish: the mathematical tetrodon. Mathematical only by name, I think. publicdomainreview.org/essay/dr-mitch…
How the devil are you? It's been ages!

0 favourites 0 retweets

In reply to @Rosalot

@Rosalot Well, here's a mathematical not tion editor called Guppy: guppy.js.org/site/

I'm good, still at Newcastle uni, currently on paternity leave for my second born

0 favourites 0 retweets

In reply to @macaronique

@macaronique Robert Recorde, in his Whetstone of Witte, coined the term 'zenzic' to mean the second power of a number. He repeated it to produce higher powers: 'zenzizenzizenzic' means the eighth power.

1 favourite 1 retweet

In reply to @george_jessup

@george_jessup Get a strip of paper. Fold it in half. Then fold it in half again. Keep folding it in half. When you unfold it, it produces a fractal curve called the Heighway Dragon. It tiles the plane!
larryriddle.agnesscott.org/ifs/heighway/h…

1 favourite 0 retweets

@dd4ta @wtgowers What would that involve? Do you mean an explanation of how you go from "I think this might not be provable" to "this definitely can't be proved?"

0 favourites 0 retweets

In reply to @wtgowers

@wtgowers @dd4ta That's the page I linked to two tweets up!

1 favourite 0 retweets

In reply to @wtgowers

@wtgowers @dd4ta I mean, it's a good page, I think it holds up to being linked twice

0 favourites 0 retweets

In reply to @Quantum__Walker

@Meromorphic_ Yes, it's a very good movie!

0 favourites 0 retweets

In reply to @yet_so_far

@yet_so_far Darn tootin'. It's from the biopic of Shakuntala Devi - highly recommended!

1 favourite 0 retweets

In reply to @RogerWolff2

@RogerWolff2 The sieve of eratosthenes is a dreadfully slow means of finding prime numbers

0 favourites 0 retweets

The "I'm feeling lucky" of twitter engagement twitter.com/RogerWolff2/st…

1 favourite 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam I've been discussing graph sketching with the @isaacphysics people, who are trying to automatically assess sketches. It's hard to pin down what a sketch of a graph is. I agree with what you said.

1 favourite 0 retweets

In reply to @BrewEdMaths

@BrewEdMaths @woodhouse_a The pattern made by reflected light at the bottom of an empty mug is called a nephroid. It's not a cardioid, as I thought for a long time.

1 favourite 0 retweets

Parenting first child:
CAN'T BLINK, BABY WILL DIE.

Parenting second child:
"Do you know where the baby is?"
...
"The new one."
...
"No, me neither."

29 favourites 0 retweets

In reply to @aa42john

@aa42john The NHS will shortly be making that an impossibility

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow So that's equivalent to multiplying the rotation by itself, but the benefit of this way is that you can do fractions like 1.5 times more easily?

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October

I've always got time for a clerihew twitter.com/tentivetodetai…

2 favourites 2 retweets

In reply to @wtgowers

@wtgowers I won't just say you should move to a host that does proper LaTeX, though I can help whenever you want to do that.
Until wordpress.com fixes their bug, here's a bookmarklet which replaces their images with MathJax: fix-wordpress-dot-com-maths.glitch.me

3 favourites 0 retweets

In reply to @wtgowers

@wtgowers I'm not sure what hosts offer it, but it's a built-in feature of the WordPress software. "WordPress multisite" is the thing to search for. You want that plus the ability to add plugins, for MathJax.

0 favourites 0 retweets

In reply to @christianp

@wtgowers What isn't always clear is that there's wordpress.com, the free service run by the company that makes WordPress the software, which is open source and can be installed and run by anyone. There are plenty of companies offering hosting for WordPress configured as you like

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @MathEdSciTech Now there's a blast from the past!

0 favourites 0 retweets

While the baby is sleeping, I'm having fun working through the Lean natural numbers game wwwf.imperial.ac.uk/~buzzard/xena/…

8 favourites 0 retweets

In reply to @christianp

So far, I'm repeating the background reading of the PhD I never finished. I'm glad I didn't finish, because Lean makes it superfluous

2 favourites 0 retweets

In reply to @christianp

If anyone wants to pay me to write "Proof assistants for babies", I'm open to it

3 favourites 0 retweets

In reply to @standupmaths

@standupmaths @stecks have you seen this anamorphic football pitch in Nantes? mateturismo.wordpress.com/2020/09/17/fey…

4 favourites 0 retweets

In reply to @virtualcourtney

@virtualcourtney @Thalesdisciple @dzackgarza Are you getting images of maths notation to paste in to tools that don't support LaTeX? You might get on with this that I made, to do this quickly: checkmyworking.com/misc/makebigma… Just take a screenshot of the rendered maths when you're done

0 favourites 0 retweets

Paternity leave over. Yikes!

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How do you feel about a video transcript using mathematical notation, e.g. "∑ x²" instead of "the sum of x squared"?
My hunch is that the fact notation isn't always read strictly left-to-right would make following both the video and transcript harder.

3 favourites 0 retweets

In reply to @northumbriana

@northumbriana What was your dad doing to his suits that he needed three a year?!

0 favourites 0 retweets

In reply to @stecks

@stecks @standupmaths ... I now have a feeling that might have been me

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @standupmaths Oh my god, I think I know which line of the PHP config caused this.

9 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths my guess, knowing nothing about what happened other than the tweet you quoted, is: they set up a server to upload reports to, running a script written in PHP. The default PHP config sets a maximum size for uploaded files, to prevent errors or attacks which fill the server up.

1 favourite 0 retweets

In reply to @christianp

@Kit_Yates_Maths The default maximum filesize is big enough that you rarely bump into it when testing, unless you have particularly good presence of mind or you've been tripped up by it before.

1 favourite 0 retweets

In reply to @standupmaths

@standupmaths @Kit_Yates_Maths Adding a line to my professional bio:

"Unsurprising" - Matt Parker

7 favourites 0 retweets

In reply to @standupmaths

@standupmaths @Kit_Yates_Maths

0 favourites 0 retweets

In reply to @christianp

Time to clock off?

2 favourites 0 retweets

@CopsAndClouds I read them all.
I sent 18 replies while I was going, and flagged 25 to look at later. I received another 15 emails while I was doing this.

0 favourites 0 retweets

In reply to @virtualcourtney

@virtualcourtney @Thalesdisciple @dzackgarza ah!

1 favourite 0 retweets

In reply to @JimPropp

@JimPropp I think I agree with your HR people

1 favourite 0 retweets

In reply to @kyledevans

@kyledevans I think it's 'pathematical'

0 favourites 0 retweets

In reply to @helenarney

@helenarney Helen. Friends don't tell friends about the four month sleep regression.
(Solidarity 🤜)

1 favourite 0 retweets

You, a gentleperson of distinction: two spaces after a full stop.

This hero I'm copy-editing: at least three spaces after a full stop.

7 favourites 1 retweet

Working on moving @NCLMathsStats's material from our private @NclNumbas database to numbas.mathcentre.ac.uk.
1729 good quality questions soon to be published! (What's interesting about that number?)

0 favourites 1 retweet

In reply to @jjsanderson

@jjsanderson To be clear, I only use one.

0 favourites 0 retweets

Have any universities explicitly put an upper bound on the number of Covid cases that they're willing to tolerate and continue face-to-face teaching, or have they all decided that if they don't do that they're not liable?
@NewcastleUniUCU

0 favourites 1 retweet

In reply to @christianp

Day 2: I've cleared the backlog of emails to the @NclNumbas users group, too! I might be able to do some actual new work by the end of the week.

0 favourites 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I can have a look tomorrow if you haven't solved it by then

0 favourites 0 retweets

That's an odd number of rolls

19 favourites 1 retweet

In reply to @d_yellowlees

@d_yellowlees Do you find Droid cam worthwhile? I couldn't get it to work at a decent framerate

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees ah, cool

1 favourite 0 retweets

In reply to @Maths2014sow

@Maths2014sow Every now and then I relive the shame of my PE teacher in year 9 saying "there's 17 of you. Why's that bad, Perfect?" and not being able to answer

1 favourite 0 retweets

In reply to @presentations

@presentations @d_yellowlees what kind of phone do you have?

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees @presentations I meant @presentations, since he seems to have a magic feature we don't!

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees @presentations that's what I suspected. I've heard iOS devices can share to macs nicely

1 favourite 0 retweets

In reply to @joshlaison

@joshlaison YES

1 favourite 0 retweets

In reply to @presentations

@presentations @d_yellowlees I do think this is an apple only thing support.zoom.us/hc/en-us/artic…

1 favourite 0 retweets

In reply to @helenarney

@helenarney I had it lots when I was little. I remember it as "that fun time I stopped breathing and got to stand over the kettle" but I'm sure it was less fun for my mum

1 favourite 0 retweets

In reply to @helenarney

@helenarney My mum combined steam with a homeopathic pill from the homeopath next door. I'm a living control group!

1 favourite 0 retweets

I have a scratch on my monitor exactly where people's profile pictures appear in Outlook. It makes everyone look like Blofeld.
Can recommend.

6 favourites 0 retweets

In reply to @helenarney

@helenarney trying to work out which way to round negative years is making my head hurt. I feel like if you're 0 on the day you're born, you should be -1 the day before

1 favourite 0 retweets

People keep writing @NclNumbas in caps as NUMBAS.
Fortunately, Numbas is case-insensitive.

0 favourites 1 retweet

In reply to @standupmaths

@standupmaths @MiniGirlGeek Would you say you have learned from exp(erience)?

2 favourites 0 retweets

In reply to @RobertsDavidJ

@RobertsDavidJ @robeastaway @ben_nuttall A case of statutory instruments moving faster than the editing process

2 favourites 0 retweets

In reply to @christianp

@RobertsDavidJ @robeastaway @ben_nuttall Though the maximum for a table of 6 is worth working out, if you want to give it a go

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow Yes Aubrey!

1 favourite 0 retweets

What dullard called it 'remote exam invigilation' and not Proctors Without Borders?

33 favourites 5 retweets

In reply to @HilariousCow

@HilariousCow Give it a go! They're easier than they look. The hard part is leaving them in the oven long enough so try don't collapse, but even if they do they still taste good.
I can take a photo of the recipe in my daughter's "my first cook book"

0 favourites 0 retweets

In the list of consecutive positive base-ten integers: 1, 2, 3, the 1111111111st occurrence of 1 is the first 1 in 1111111111.

Discovered by Hans Havermann - gladhoboexpress.blogspot.com/2020/10/propor…

9 favourites 2 retweets

In reply to @mathzorro

@mathzorro @aperiodical I'm going to answer for Katie and say no

1 favourite 0 retweets

In reply to @AndreasVohns

@AndreasVohns @NclNumbas @H5PTechnology I've added a ?language parameter to the preview and embed URLs, so you can specify the language to use. For example: numbas.mathcentre.ac.uk/question/74755… is guaranteed to use German.

1 favourite 0 retweets

In reply to @gazatron13

@gazatron13 you're right!

0 favourites 0 retweets

!!!!! setwithfriends.com lets you change the colours !!!
There are tears in my colourblind eyes

13 favourites 1 retweet

In reply to @samholloway

@samholloway which app is it?

0 favourites 0 retweets

In reply to @samholloway

@samholloway are there three colours in that screenshot?

0 favourites 0 retweets

In reply to @becky_k_warren

@becky_k_warren yes I have

0 favourites 0 retweets

In reply to @christianp

@becky_k_warren I mean, I have no idea what they're called. The hex codes are #800080, #0AEF0D and #E66565. If I was serious I'd get some colours from colorbrewer2.org

2 favourites 0 retweets

In reply to @howie_hua

@howie_hua How do you feel about '-x'?

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway is that because you only cut by length?

0 favourites 0 retweets

In reply to @robeastaway

@robeastaway yes, that's what I was thinking

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA do you have a written set of rules or code of conduct for 100!?
We're setting up a similar thing, and I think it would be good to have stuff like "be nice to each other", "don't give spoilers unless asked" on record

1 favourite 0 retweets

In reply to @mozzichi

@mozzichi @DavidKButlerUoA that's the way I was taught it in the UK, too

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA thanks!

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA do you mind if I pinch that pretty much wholesale?

2 favourites 0 retweets

One of our PhD students has just passed their viva with no corrections.
I'm in the presence of greatness.

59 favourites 4 retweets

I thought of a brilliant, short domain-name for a self-hosted git server, but just before registering it I realised that owners of a .it domain need to be EEA citizens and I'm not sure if that'll include me after January

1 favourite 0 retweets

In reply to @madebyburton

@madebyburton yes but l-p-g.uk doesn't work as a pun

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@mortal_ordinary The viva is the spoken exam after you've submitted your written thesis. The examinees decide whether to award your degree. Most of the time, they award it subject to corrections - fix the errors or weak bits they've spotted, and you're a doctor. This student didn't have any!

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In reply to @VickyMaths1729

@VickyMaths1729 @LPPbooks Crikey, a #BigMathOff reference on the back!

Congratulations on your new book

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In reply to @icecolbeveridge

@icecolbeveridge What feelings does this python code provoke in you?

max(n for n in range(100) if str(factorial(100))[-n:]=='0'*n)

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge that was my first draft, but I thought re was a bit of a sledgehammer

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In reply to @bbarber_

@bbarber_ @icecolbeveridge Conjecture: n! does not have more than n zeros on the end.

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge ahhh, I had a feeling there was a function to strip suffixes! Well done

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In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge without strings: max(n for n in range(100) if factorial(100)%(10**n)==0)

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In reply to @icecolbeveridge

@icecolbeveridge @ColinTheMathmo is @ColinTheMathmo's point that the question is "how many zeros on the end?" and your code doesn't do that directly, it uses a theorem which avoids writing out the zeros

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @ColinTheMathmo I was getting at that from the other direction - computing for 100 in the most brute way I could think of

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Stupid idea: record or write a proof of the same theorem every day for a month.
It's already been done in "99 variations on a proof", I suppose

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In reply to @ccppurcell

@ccppurcell Ooh, nice!

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In reply to @howie_hua

@howie_hua I don't think "simplifies to 1" is any better than "cancels to 1". "Simplify" has so many meanings

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Something that puts a chill down your spine: an email from the university's executive board that begins "The government has been clear"

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300g of sugar into Sunday morning, we've decided not to let the girl watch the Bake-Off any more

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In reply to @jemmaths

@jemmaths @MathsTechnology @onechriswhite @VMN_alex @Whitehughes @mathstiger70 @tm_maths Wikipedia says that's why τ was chosen, so no pretending necessary en.m.wikipedia.org/wiki/Angular_u…

1 favourite 0 retweets

In reply to @jemmaths

@jemmaths @MathsTechnology @onechriswhite @VMN_alex @Whitehughes @mathstiger70 @tm_maths I mean, I literally just learnt it while trying to look up what gradians are, so that makes both of us

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Should it bother me that Sainsbury's obvious Penguin knock-off chocolate is called "polar bar"? They live at opposite ends of the planet!
(In case you're interested: chocolate filling fine; biscuit doesn't have quite the right texture)

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In reply to @peterrowlett

@peterrowlett "surely"

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Why don't any of the icon buttons in @CanvasLms have tooltips?!

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In reply to @kyledevans

@kyledevans Now I have "Sir, we need to reverse the polarity on the chocolate bars!" circling round my head

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gcd(0,-5) =

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In reply to @RobJLow

@RobJLow does that mean gcd(a,b)=0 for all a and b?

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"Annual leave carried over must be used by 31st September."

Ummmm

4 favourites 0 retweets

In reply to @lukejanicke

@lukejanicke the "correct" answer was a surprise to me this morning, so I don't think there's a trick

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson the year of our lord two thousand and twelveteen

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In reply to @DanielTruchet

@DanielTruchet Ideally yes, but knowing the way "people services" works, they probably meant 1st October, leaving me 24 hours to use my 10 carried over days

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In reply to @lukejanicke

@lukejanicke Fair enough

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In reply to @mayhematics

@mayhematics Opinion on that differs!

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In reply to @alisonkiddle

@alisonkiddle @peterrowlett My firstborn is currently stuck on "three months ago" as a way of referring to any moment in the past. If she wants to be more specific, "three months ago before bad germs" or "three months ago before the baby was here"

3 favourites 0 retweets

In reply to @GraemeBoxwell

@GraemeBoxwell Probably the same one I did.

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In reply to @apgox

@apgox I'll say what the _conventional_ answer is when the poll closes

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There's nothing like arbitrarily rebalancing scores for the Nth time to make you a believer in standards based grading.

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Tom Lehrer has released all his songs into the public domain! tomlehrersongs.com

56 favourites 36 retweets

when will the emails stop aaaaaaaaaaaaa

6 favourites 0 retweets

In reply to @martinjc

@martinjc @drvinceknight For quick quiz questions: could you embed a @NclNumbas question?

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In reply to @martinjc

@martinjc @drvinceknight @NclNumbas Fair enough! Keep it in mind, though - quiz questions rapidly get complicated and it's not worth reinventing the wheel.

2 favourites 0 retweets

In reply to @profRoys

@profRoys Thinking about a socially distanced Gendarmenmarkt has been making me sad all year, so I'm glad it's not happening

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What's the most interesting integer sequence that only uses the numbers 1 to 5?

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In reply to @GhostMutt

@GhostMutt oeis.org, I suppose

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In reply to @Whitehughes

@Whitehughes integers 1 to 5

1 favourite 0 retweets

In reply to @mathforge

@mathforge @matthewhaworth them's fighting words!

2 favourites 0 retweets

In reply to @ZenoRogue

@ZenoRogue My friend, you clearly haven't seen 1,2,3,4,5

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In reply to @Whitehughes

@Whitehughes Well, it's in the OEIS, but nobody has felt moved to write any interesting comments on it: oeis.org/A039703

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tfw just anybody can name someone else the world's most interesting mathematician and kids believe them twitter.com/MissB_Williams…

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In reply to @icecolbeveridge

@icecolbeveridge so you're saying I need to start accepting bribes?

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In reply to @Quelklef

@Quelklef I had that in mind, which is why I didn't include 0

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In reply to @Quelklef

@Quelklef Yeah, fair enough. I suppose I want something with more than 2 distinct elements

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In reply to @kyledevans

@kyledevans That's weird, it's also my mother's maiden name!

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Galaxy brain twitter.com/Oktahedro/stat…

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In reply to @neil_calkin

@neil_calkin @Quelklef I do! Lovely sequence.
This was prompted by me thinking that there's a huge gulf between binary-ish sequences that only use 0 and 1 or 1 and 2, and others with much bigger range. I should have asked for sequences with between 3 and 5 distinct elements.

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In reply to @christianp

@neil_calkin @Quelklef Hmm.. The Wikipedia illustration for the Calkin-Wilf tree only uses the numbers 1 to 5 😉

1 favourite 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths "Call My Bluff Routine"

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In reply to @christianp

the first sequence in the OEIS with 5 distinct values in its a-file (but more in the whole sequence) is oeis.org/A000091. If you can work out what it's about, please enlighten me

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In reply to @christianp

The first sequence just using the numbers 1,2,3,4,5 in its a-file is oeis.org/A007001, which combines a nice entry number with a charming simplicity.
Novelty: 4/5
Aesthetics: 5/5
Explicability: 3/5 ("orbit"??)
Completeness: 5/5

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It's value added publishing time again!
See if you can beat the full minute it took me to work out how to read this article. Where on this page did I have to click?
sciencedirect.com/science/articl…

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In reply to @robinhouston

@robinhouston yes. I foolishly expected a link to read the article after the abstract, and then I was misled by the "get rights and content" link, along with "open archive".

1 favourite 0 retweets

In reply to @JSEllenberg

@JSEllenberg Draw the monkey first, then the pringle, then erase the monkey

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Monday morning. 62 unread emails in my inbox.

Why have I been having stress dreams?

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It's "tell me not to use ambiguous notation" time!
Context: I have to interpret students' ambiguous notation.

I want to interpret `xy` as `x*y`.
Should `x/yz` be `(x/y)*z` or `x/(y*z)`?

Yes, it's ambiguous, but of the two options, which would be the least surprising?

9 favourites 1 retweet

In reply to @AndreasVohns

@AndreasVohns @NclNumbas Bitte darf ich über diese Fragen im Numbas-blog schreiben?

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In reply to @mathforge

@mathforge Both those cases match the behaviour I currently have, so I'm glad we agree

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In reply to @SdixonSharon

@SdixonSharon You can follow the order of operations for x/y+z. Do you think there's another way of interpreting it?

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In reply to @christianp

... now I have vague memories of seeing a comment along the lines of "juxtaposition binds more tightly than operator symbols" somewhere in someone else's code

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In reply to @knightofmaths

@knightofmaths as typed on a keyboard, so the four characters x/yz

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In reply to @robinhouston

@robinhouston so how would you interpret it?

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In reply to @christianp

Really annoying follow-up:

Is `xy!` equivalent to `(x*y)!` or `x*(y!)` ?

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In reply to @robinhouston

@robinhouston The reason I'm thinking about this is that you might type something like `xy^2` to mean `x*y^2`.
I think in that case the juxtaposition doesn't bind more tightly - the exponentiation should happen first. Maybe juxtaposition is a way of breaking ties for ops with equal precedence?

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In reply to @robinhouston

@robinhouston I'll... inform my colleague who just wrote xy^2 that they're in the wrong timeline

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In reply to @robinhouston

@robinhouston yes, this is for my job writing e-assessment software.

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In reply to @peterrowlett

@peterrowlett @icecolbeveridge Yeah, they get a live 2D rendering so *in theory* they can check it's been interpreted as they intended.

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In reply to @Sally_Keely

@Sally_Keely That's true if you apply the normal order of operations after inserting the missing multiplication symbol, but most people replying interpret x/yz as x/(y*z). I think the intuition is that juxtaposition is a bit stronger than using the * symbol

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In reply to @virtualcourtney

@virtualcourtney @Sally_Keely I think this is a prescriptivist/descriptivist argument.

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In reply to @christianp

Is now a good time to link to the thing I made that lets you make up your own order of operations? checkmyworking.com/misc/samdob/

4 favourites 1 retweet

In reply to @virtualcourtney

@virtualcourtney @Sally_Keely well, people wrote prescriptive rules saying you shouldn't split an infinitive or end a sentence with a preposition, but that's something up with which many people will not put

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In reply to @bwebste

@bwebste @pkrautz Does this work when you replace letters with numbers, or are there different rules?

How do you feel about:
x/2z
3/4z
1/yz

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In reply to @virtualcourtney

@virtualcourtney @Sally_Keely I suppose I'm willing to go with "the rules are wrong", based on how people use this notation in practice

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I'm getting some very authoritative answers in both directions to this. twitter.com/christianp/sta…

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In reply to @bwebste

@bwebste @pkrautz so 3/4z is 3/(4*z)?

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In reply to @virtualcourtney

@virtualcourtney @Sally_Keely I have yet to encounter a situation where adding parentheses made things worse

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I promise I'm not just coming up with these to troll you:

What information is lost when you consider 100% of 0 as identical to 0% of 0?

(This question brought to you by a colleague's Canvas quiz progression that didn't seem to be working)

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Powers. The following are all considered the same: I for Indices, E for Exponents, O for Ordinals

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In reply to @christianp

@DavidKButlerUoA I've just googled it, and apparently O is for "Orders" and I've misremembered it my whole life

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🎶 Let's get farty and have a farty party 🎉

(babies are magic and I cherish every moment)

3 favourites 0 retweets

In reply to @christianp

Friendship with farting is over.
Now snoring is my friend.

1 favourite 0 retweets

Achievement: introduced a southerner to the word 'hoy', as in "I'll just hoy together some questions"

5 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared I can't account for what they get up to in Hartlepool

1 favourite 0 retweets

In reply to @Clare_L_Wallace

@Clare_L_Wallace @honeypisquared kets?

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In reply to @Clare_L_Wallace

@Clare_L_Wallace @honeypisquared sorry, I don't do Durham. Too far south for me ;)

1 favourite 0 retweets

In reply to @christianp

@Clare_L_Wallace @honeypisquared Who am I kidding? As if I didn't grow up within shouting distance of the River Wear...

1 favourite 0 retweets

In reply to @MathigonOrg

@MathigonOrg having read "Inventing the Mathematician", I think it would be better if you made mathematical topics more prominent in the timeline than people

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All of you insisting that `a⁡(b+1)` must be interpreted as a function application because it doesnt have a multiplication symbol, as if the unicode character U+2061 FUNCTION APPLICATION doesn't exist

10 favourites 2 retweets

In reply to @christianp

It looks like this: ⁡
I can tell when it's missing.

6 favourites 2 retweets

In reply to @christianp

@MathigonOrg and the list of non-mathematical events at the bottom is very eurocentric

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This is the content I come to this website for twitter.com/ZenoRogue/stat…

2 favourites 0 retweets

In reply to @Cshearer41

@Cshearer41 Is the bottom-right triangle yellow, and the other two orange?

2 favourites 0 retweets

In reply to @howie_hua

@howie_hua Ah yes, flippered learning

3 favourites 0 retweets

In reply to @alephJamesA

@alephJamesA @24hmaths Well done! I watched it with the baby on my lap. He wanted more magic involving things disappearing and reappearing, but otherwise gave it a good review

1 favourite 0 retweets

I can only work 80% of full time because I'm disabled. I'm also limited in what I can do when I'm at work, which has limited my career options. twitter.com/UCUequality/st…

7 favourites 0 retweets

November

Does this function have a name?
For a, b > 0, max(a/b, b/a)

4 favourites 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth Yes. Does it have a short name, like 'abs' for 'absolute value'?

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Why has the wordpress editor replaced the list of sensible image sizes with a series of buttons to pick a scale factor for the source image? I don't care what 50% of my original image is, I want to make it the same size as all the others in the page!

2 favourites 0 retweets

I'm up for calling it 'squareness'. (And yes, on reflection, min is more useful than max) twitter.com/mayhematics/st…

4 favourites 0 retweets

In reply to @AnonMathMom

@AnonMathMom So is your little one as pedantic as mine is?

1 favourite 0 retweets

In reply to @Pyfagorass

@Pyfagorass Coming into this without any context: is Galen Druke the name of a character from Star Wars?

0 favourites 0 retweets

In reply to @jjaron

@jjaron Eventually it'll have replied to everyone, so its output will follow a logistic curve. As I show in my viXra paper, this means ...

1 favourite 0 retweets

Student asking for altercations following their homework submission.

If it's an altercation they want...

11 favourites 0 retweets

In reply to @alisonkiddle

@alisonkiddle @Dragon_Dodo Have you got a Big Knife? I was terrible at cutting things and then I got a Big Knife and it became loads easier. I think the diff is you can use more of the knuckles on your off hand to lean the knife against

1 favourite 0 retweets

Can't believe it's 2020 and I'm debugging an internet explorer compatibility problem

7 favourites 0 retweets

In reply to @bourne_2_learn

@bourne_2_learn brb, emailing several hundred thousand students around the world

0 favourites 0 retweets

In reply to @christianp

Victory! A tale in 12 tabs

1 favourite 0 retweets

In reply to @christianp

Coworker has arrived to ceremonially close IE for another year

9 favourites 0 retweets

In reply to @Shona_Mu

@Shona_Mu (I'm autistic but not ADHD)

I also have trouble understanding mindfulness. I think I'm quite mindful anyway? Sorry I don't have any great insight for you, but it's not just you who doesn't understand.

1 favourite 0 retweets

In reply to @bourne_2_learn

@bourne_2_learn it was a flippant comment. I have no way of knowing exactly who is using Numbas, or which browser they're using

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In reply to @christianp

Now a student wants to know if someone can reprimand the problem they're having.

If it's a reprimand they want...

2 favourites 0 retweets

In reply to @TamasGorbe

@TamasGorbe @roger_mansuy ... how often did he have cause to say that?

5 favourites 0 retweets

In reply to @ptwiddle

@ptwiddle @TamasGorbe @roger_mansuy Good point!

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths Finally, it's worth knowing about random walks!

1 favourite 0 retweets

N=33, but this is a hilarious experiment twitter.com/tomstafford/st…

6 favourites 3 retweets

In reply to @christianp

Today, a student asking how to combat a problem.

If it's combat they want...

3 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow In this analogy, which one is like People Like Us?

0 favourites 0 retweets

In reply to @HilariousCow

@HilariousCow Don't apologise, I have no idea what either of those US programmes is about

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Currently running a severe spoons deficit

5 favourites 0 retweets

In reply to @suedepom

@suedepom thebraincharity.org.uk/whats-on/news/…

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In reply to @christianp

In happier news, I've just received a letter referring me for an appointment with "Elderly Care", so things are looking up

2 favourites 0 retweets

In reply to @MathsTeacherKYP

@MathsTeacherKYP ???

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In reply to @MathsTeacherKYP

@MathsTeacherKYP I have, but I didn't get that that was what you meant

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How time has been passing this week twitter.com/christianp/sta…

17 favourites 2 retweets

In reply to @jjaron

@jjaron Depends on how sorry you are about all the people your grandad killed, I suppose

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Just encountered a really weird firefox bug (I think) where window.setTimeout just never ran

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I'm enjoying seeing a lot of people who'd never crossed my timeline before on #BlackInMathWeek

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oeiswhack: enter a short, meaningful, sequence of integers into oeis.org, returning no results.

I think this is probably the best oeiswhack I'm ever going to get

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In reply to @christianp

Here's what it means:

I have a process that begins by picking a number N, and totting up a total T that begins at 0.
Repeatedly do this:

* add N to T
* if N divides T, add 1 to N, otherwise subtract 1
* if N is 1, stop

I searched for N where the process stops

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In reply to @TimonGutleb

@TimonGutleb yeah, I'm going to. I've just sent an email to seqfans asking for help making up the short description, because I'm never happy with those

1 favourite 0 retweets

In reply to @christianp

@TimonGutleb I had a go: oeis.org/draft/A338807 🤷

1 favourite 0 retweets

Rookie mistake by this correspondent: mentioned that their problem needs to be resolved by January 2021.

Anything later than three months ago is going to the bottom of the pile

5 favourites 1 retweet

3-year-old told me that she got a sticker at playgroup for staying quiet while they thought about puppies this morning.

Something's been lost along the way there...

10 favourites 0 retweets

In reply to @robeastaway

@robeastaway @aperiodical you nearly nerdsniped me last time to rank league seasons by closeness of the goal/match ratio to π, and I *really* don't have time to do it now, but ...

1 favourite 0 retweets

In reply to @christianp

@robeastaway did you spot that in the 15/16 season there were 22 goals after 7 matches? That's the best π approximation in the last 10 years

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In reply to @christianp

@robeastaway and in 2012/13 there were 44 goals after 14 matches

1 favourite 0 retweets

Oh wow, brutalism makes so much more sense when you realise photos at the time were almost all black and white! twitter.com/ZndrP/status/1…

1 favourite 0 retweets

I have another question about notation. I'll give the question, then please like each of the tweets in the thread with a notation that you'd accept.

Context: an online homework. Text shortened: it's not really about fractions.

Divide -5 by -55. Give your answer as a fraction.

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In reply to @christianp

-5/-55

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In reply to @christianp

5/55

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In reply to @christianp

1/11

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In reply to @christianp

and why the heck not:
−5 ÷ −55

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In reply to @christianp

(-5)/(-55)

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In reply to @BernhardWerner

@BernhardWerner yeah, they're all unambiguous, but I wonder how far down the hole of unusual notations I need to go. Like, arbitrarily nested brackets are unambiguous, but I think it's fair to say a rational number doesn't need any brackets in it

1 favourite 0 retweets

In reply to @BernhardWerner

@BernhardWerner sorry, I can't see the difference you mean

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In reply to @BernhardWerner

@BernhardWerner I thought I was...

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In reply to @christianp

(1/11)

9 favourites 0 retweets

In reply to @christianp

1.0/11.0

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In reply to @christianp

2/22

6 favourites 0 retweets

In reply to @stem_wales

@stem_wales no, just interested in the value, and the form doesn't matter at all - we just specified a fraction so we don't have to deal with recurring decimals

0 favourites 0 retweets

In reply to @christianp

@DH_Seifert you'd really accept this one?

0 favourites 0 retweets

In reply to @SamHartburn

@SamHartburn @panlepan @mathhombre @geogebra ffmpeg can probably do what you want

1 favourite 0 retweets

In reply to @RichardElwes

@RichardElwes Have you got the book "Magnificent Mistakes in Mathematics"?

2 favourites 0 retweets

In reply to @alexbellos

@alexbellos if you'd said 4 letters, I could've sent you this classic of constrained writing: muppetlabs.com/~breadbox/txt/…

But you did not so I am sad

3 favourites 0 retweets

In reply to @mathforge

@mathforge @virtualcourtney alas, I am middle class and have parents from Slough, so my accent is distressingly non-provincial

2 favourites 0 retweets

In reply to @statto

@statto I had a bit of a freak out last night about what's going on in a single drop of water, so no thanks

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees does "I've given this sort of talk dozens of times" count as presentation prep? Asking for someone who has a talk to give on Friday morning

1 favourite 0 retweets

In reply to @dcsohl

@dcsohl @Hros @standupmaths @MathsJam 2021-08-(4!)

0 favourites 0 retweets

In reply to @standupmaths

@standupmaths @honeypisquared Project: count the women contributors to the OEIS

2 favourites 0 retweets

In reply to @knowledgehook

@knowledgehook @MathforLove @theresawills Will you be doing anything to make this accessible to colourblind users?

3 favourites 0 retweets

In reply to @MathforLove

@MathforLove @knowledgehook @theresawills Why not make it the standard visualization?

0 favourites 0 retweets

Is it just me or is this graph sad?

20 favourites 1 retweet

In reply to @KohoutJW

@KohoutJW Oh no I've failed a Rorschach test of my own making

5 favourites 0 retweets

In reply to @knowledgehook

@knowledgehook @MathforLove @theresawills Yes!

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith Now I need to update my definitions of 'top' and 'bottom'

2 favourites 0 retweets

In reply to @k_houston_math

@k_houston_math Make up a new one!

1 favourite 0 retweets

In reply to @k_houston_math

@k_houston_math That's one example of a new task to make up

0 favourites 0 retweets

Those interested in such things might want to know that aldi and amazon are selling geomag very cheaply at the moment

3 favourites 0 retweets

In reply to @Pyfagorass

@Pyfagorass Making a note to find you in 2025 when nihilism is the greatest threat facing humanity

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There's encouraging women to study technical subjects, and then there's making it look like you're an all-women's institution, TU Dublin.

On reloading the page I get shown a different image at the top, with a bit more diversity. Let's blame the algorithms!

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In reply to @FOTSN

@FOTSN @stecks every time I take that tote out I feel like I'm living a lie. I feel like writing "(but I much prefer a Python notebook)" on the other side

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FAO @FOTSN I've found the title of your next show twitter.com/HaggardHawks/s…

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In reply to @mathhombre

@mathhombre "first day you enjoy hearing Christmas music" might be better

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In reply to @LearningMaths

@LearningMaths I love this!

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In reply to @mscroggs

@mscroggs @chalkdustmag Squolaf!

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In reply to @christianp

@mscroggs @chalkdustmag can I be petty and say that the dots should be in different places for each norm?

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In reply to @christianp

@LearningMaths I've made a @NclNumbas explore mode question of this: numbas.mathcentre.ac.uk/question/81628…

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In reply to @ColinTheMathmo

@ColinTheMathmo @Gelada I am available to make interactive computer based activities

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In reply to @AndreasVohns

@AndreasVohns You could try doing a different tie knot each time: arxiv.org/abs/1401.8242

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In reply to @JanvierUK

@JanvierUK sorry, you're in tier -1. You must go outside

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In reply to @stecks

@stecks A classic

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In reply to @krzhang

@krzhang @genebkim @SherlockpHolmes @monsoon0 Hah, I was just about to say constructivists are trolls and then this reply popped up.

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In reply to @tomrocksmaths

@tomrocksmaths lovely pictures. I was going to say they're giving @benorlin a run for his money, but they're too good for that

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I'm grateful for @jamesgrime's continued patronage of my interactive-maths-thingy-making skills. Just made him a lovely, accessible, graph theory toy.

If you're going to run a maths workshop and need an interactive thingy, I might be able to help.

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In reply to @christianp

@jamesgrime See it this weekend:
twitter.com/jamesgrime/sta…

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I'm just getting sad clown vibes from this twitter.com/MathArt4All/st…

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Yes, this. twitter.com/BendyBotanist/…

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When a recipe says 'doubled in size', does it usually mean 'doubled in diameter' or 'doubled in volume'?

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In reply to @icecolbeveridge

@icecolbeveridge I suppose I should look in either "The Proof is in the Pudding" or Eugenia Chengs's baking book

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In reply to @icecolbeveridge

@icecolbeveridge Have you got Nikki Segnit's "Lateral Cooking"? It is _very_ mathematician friendly

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In reply to @C_J_Smith

@C_J_Smith can I live at your house? Here I just have to play the Orchard Games pizza game over and over and over and over

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@FoxtrotRomeo130 A rising dough doesn't double in mass

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In reply to @icecolbeveridge

@icecolbeveridge 7-year-old might be just the right age to start Redwall

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In reply to @lunasorcery

@lunasorcery Seeing Luna's last tweet of the night at the top of my timeline each morning when I wake up

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In reply to @lunasorcery

@lunasorcery I'd like to join the chorus of people asking why you make life so hard for yourself

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Your best guesses about what the job title "Solution Architect" entails, please.

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In reply to @honkjhonk

@honkjhonk I'm fortunate to live in a jurisdiction where such reasonable rules don't exist

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In reply to @jjaron

@jjaron The Gömböc is patented, isn't it?

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December

Today: lots and lots of testing of @NclNumbas questions. It's a bit mind-blowing how many people are using it

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In reply to @christianp

@NclNumbas just over 1400 questions edited this week! Wow!

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I've just learnt that there is an ANSI escape code to render characters in Fraktur!
fau.re/blog/20140406_…

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I've got a new sequence in the OEIS. It's to do with a really simple number game I made up. Here's a video explaining the rules
youtube.com/watch?v=ZtGcd0…

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In reply to @christianp

Which starting numbers eventually get to 1? In the video, it looks like starting at 4 doesn't, but starting at 2 does.

My new sequence, oeis.org/A338807, lists the numbers that eventually reach 1. I'd love to know if there's a pattern!

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In reply to @christianp

Think of a number, and keep a running total starting at 0. Each turn, add your number on to the total. Then, if the old total was a multiple of your number, add one to your number. Otherwise, subtract 1.
The game ends when your number is 1.

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In reply to @christianp

You could think of this game as "the Collatz sequence with a running total" - what happens next doesn't just depend on which number you're on now, it also depends on all the numbers you've seen before.

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In reply to @christianp

(my enemies might like to look at the editing history of the OEIS entry to see what a mare I had trying to compute it correctly and then format it properly)

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In reply to @BEBischof

@BEBischof nope

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What's not in an encyclopedia?

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In reply to @christianp

Wikipedia: all the right facts, not necessarily in the right order

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In reply to @BEBischof

@BEBischof yeah, I think so: call your number at step i N_i, and the total T_i. Consider the set of triples (N_i, N_j, T_i mod N_j) for all j<=i. If at some step all those triples are ones you've seen before, nothing new is going to happen so you'll never reach N = 1

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In reply to @sarahlovesmaths

@sarahlovesmaths This exact question was answered by @CardColm in 2012 on @aperiodical: aperiodical.com/2012/05/in-wha…

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In reply to @CardColm

@CardColm @aperiodical that sounds plausible

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In reply to @nicole_cozens

@nicole_cozens @AJMagicMessage Replace "what are the boys' ages" with "what could the boys' ages be?" and you've got one of those new-fangled open questions

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In reply to @chris_fairless

@chris_fairless Is that a mean or a median or what?

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In reply to @icecolbeveridge

@icecolbeveridge What's your preferred method for finding a cross product?

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Got ready for a bike ride but discovered a flat tyre. Now walking but directing envious glowers at every cyclist who crosses my path

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In reply to @JanvierUK

@JanvierUK @DailyMirror A charitable reading is that it's a typo and they meant 'catches'

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In reply to @alephJamesA

@alephJamesA @icecolbeveridge *cracks fingers*
Time for a professional to show you how to _really_ not get it

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In reply to @icecolbeveridge

@icecolbeveridge @alephJamesA Just had a look at it. Rewriting rules! that's where I'm a viking!

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In reply to @christianp

@icecolbeveridge @alephJamesA Dang, it was just a DAG

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In reply to @Thomaths2

@Thomaths2 @roger_mansuy est-ce que vous avez vu les polices des frères Demaine? erikdemaine.org/fonts/

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I've thought of an interesting, easily explained maths thing and I don't know whether to do something about it now, or save it for next year's #BigMathOff or #BigMathsJam.

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In reply to @jjaron

@jjaron crikey, there's a blast from the past. I think about that bit every now and then, and the bit with the 'surreal' comedian who just compares everything to lemurs

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In reply to @Andrew_Taylor

@Andrew_Taylor What is this, noto for concepts that need to be represented pictorially?

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In reply to @mgt_grunthos

@mgt_grunthos @KloKlo @Josh_More @kizzyblackburn We go even further and say D'hams, pronounced 'Darms'

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In reply to @fermatslibrary

@fermatslibrary I want 1 to appear either twice or not at all, but just once there looks weird

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I dreamt a joke so mediocre it woke me up:

"I have a gymnast friend who wrongfully had his medals taken away. I'm helping him win them back, but we've got to jump through a lot of hoops."

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In reply to @jjaron

@jjaron Maybe the other half are unemployed?

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In reply to @jjaron

@jjaron Rats

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I'd forgotten how comfy my Christmas jumper is. Why don't I wear it all year?

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In reply to @Ayliean

@Ayliean Lovely!

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Beautiful twitter.com/UKMetric/statu…

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What's this a drawing of?

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In reply to @christianp

So a(5) = 2 because it doesn't appear in column 2, which is 1,3,6,10,...

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In reply to @christianp

The columns of Pascal's triangle are

1,1,1,1,...
1,2,3,4,...
1,3,6,10,...
1,4,10,20,...
...

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Can someone save my sanity: I can't believe this isn't in the OEIS, I must have made a mistake.

"a(n) = the first column of Pascal's triangle in which n does not appear".

Labelling the first column 0 and starting at n=2, I get
2,3,2,2,3,2,2,2,4,2,2,2,2,3,2,2,2,2,2,3,2,2,2,2,...

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In reply to @stecks

@stecks OK, ignoring column 0

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In reply to @Derektionary

@Derektionary Umm,... Yes

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It's "arbitrarily change the marks available for questions until they add up to the magic number" season again.

But mastery grading is so subjective...

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In reply to @christianp

It's also "I've helpfully highlighted my changes in red" season.

@colourblindorg

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In reply to @blitzmunter

@blitzmunter The dialog is provided by the browser, so you can't style it

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Wanted: a function that takes a description of a family relation and returns the number of different paths in the family tree it could describe (considering siblings with the same parents as equivalent)

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In reply to @honeypisquared

@honeypisquared Entropy!
When a thing falls down and it makes you frown,
It's entropy!
When you're out of luck and it comes unstuck,
It's a sad day.
It always increases, goes only one way

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In reply to @sarahlovesmaths

@sarahlovesmaths good question

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Very frustrated with the number of people, both students and colleagues, who email me saying "there's a problem with my test" without giving any hint about which test it is.
There were 138 @NclNumbas tests active yesterday, at Newcastle alone!

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In reply to @christianp

@NclNumbas Fortunately, I'm a powerful wizard and can divine which test they're talking about with a combination of spells and database queries, but I'm not happy when I do it

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Weird: the python datetime library can make a datetime for 1st January 1AD, but can't produce its unix timestamp:

> datetime(1,1,1,0).timestamp()
ValueError: year 0 is out of range

> datetime(1,1,2,0).timestamp()
-62135510325.0

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In reply to @TimonGutleb

@TimonGutleb I think the last comment in that thread explains what I saw, since I'm in GMT.

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In reply to @theFoldster

@theFoldster @matthematician tell that to all the people whose discoveries were named after somebody else

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In reply to @robinhouston

@robinhouston this tweet is a denial of service attack on my brain

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I'd been wondering if duolingo mare sure that the parts of phrases were presented in a derangement. Now I know!

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I haven't enjoyed it in previous years, but I'm actually keeping up with this year's #AdventOfCode. Either the puzzles are a lot easier or I've got cleverer. One of those is much more likely

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Does this exist: Euclid's Elements, in origami.
All the propositions would need reworking to cover the stuff you can do with folds instead of straightedge and compass.

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In reply to @chesstutor

@chesstutor @mayhematics thanks! I found a copy I can read at jstor.org/stable/3607531

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Thinking again about that year the Dutch government handled everything so badly that their citizens ate them

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In reply to @Htbaa

@Htbaa en.m.wikipedia.org/wiki/Rampjaar

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In reply to @alicecbennett

@alicecbennett It would be so much less effort on their part to just make everyone answer that question. Pure aggravation!

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The recipe says to use 2 cloves of garlic, but it's on the sainsbury's website so I'll use 6

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In reply to @christianp

Step 3 of this recipe is something I should have started doing before steps 1 and 2, so joke's on me I suppose.

Well played, anonymous recipe author. Well played.

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In reply to @tombutton

@tombutton Correct

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In reply to @mscroggs

@mscroggs Hahaha fun joke I'm going to bed at 8

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Just in case you were wondering who the Queen of Wrapping is, @stecks has wrapped an individual pencil with remarkable precision

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In reply to @jjaron

@jjaron Crikey, well done! Hope you feel better soon

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In reply to @alephJamesA

@alephJamesA I remember being told how to do this in physics class, thinking "that's cool", then not doing it. That's why I'm a pure mathematician

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In reply to @edsouthall

@edsouthall At this time of year, we should all take a moment to think about our role in triangle inequality

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I think @matheknitician will like this twitter.com/obi_obita/stat…

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In reply to @matheknitician

@matheknitician I think side-on, and you change colour for each layer

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In reply to @christianp

@matheknitician No, that's not it. I've got no clue, I can't even see what the colours are

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My 3-year-old would like to know what winter looks like around the world. Could you reply with a photo of what it looks like near you at the moment?

Here's what it looks like near us.

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This film is loads of fun. If you can, I highly recommend you watch it twitter.com/aperiodical/st…

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In reply to @christianp

Thanks for your photos, everyone! I made the same request on mastodon and got loads more photos.
If you'd like to see them, the thread is at mathstodon.xyz/@christianp/10…

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In reply to @esdaniel

@esdaniel Yikes!

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Toddler is playing Toca World on the ipad, in the pretend vet's practice.
"I don't like that animal."
Picks up an axolotl and puts it in the bin.
Sorry, @helenarney.

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2021

January

In reply to @kyledevans

@kyledevans The version I've seen most often involves algae or water lilies or something covering a pond

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All these apps offering to organise your monthly outgoings or show stats on your TV viewing habits have given me the idea to write an app to help you remember your mother's maiden name

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In reply to @amermathsoc

@amermathsoc @tpsemath @maanow @TheSIAMNews @AmstatNews @Profpatrice That link says "page not found" and I can't find it by searching for the title. Is there a direct URL?

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In reply to @christianp

@NclNumbas First day back at work, and the email at the top of my inbox is from a student asking about "my statistics assessment", sent from their yahoo account. Who knows if they're even one of our students?

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In reply to @Shireling89

@Shireling89 @NclNumbas ahhh, those are the worst. Glad it wasn't serious!

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In reply to @Shireling89

@Shireling89 @NclNumbas I mean, many of these emails are sent as a consequence of them not remembering the stuff we're already trying to teach them in lectures, so I'm not sure teaching them email etiquette will eliminate this problem

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Is there a way to make it so that pressing Ctrl+Q doesn't close Firefox without so much as a confirmation prompt?
Ideally it would do nothing, because I never need to Entirely Leave The Internet in that much of a hurry

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In reply to @samholloway

@samholloway I've looked in about:config, and both those settings are set to true, I think from last time I had this problem. Weird!

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In reply to @samholloway

@samholloway ubuntu

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In reply to @JoatStewart

@JoatStewart Maybe making two decisions about the same problem is more decisive than just deciding on one course of action

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*doing a homework problem*
"Compute the determinant of (horrendous matrix)"
*determinant is -1*

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In reply to @heavymetalmaths

@heavymetalmaths I'd be happy to sit in a maths-related gather town all day, to be honest

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There's making a rounding error, and then there's rounding off to two decimal places after each step of the calculation. And a PhD student did this!

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In reply to @KarenCampe

@KarenCampe this situation involved exponentials. I'm quite concerned!

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In reply to @eqdynamics

@eqdynamics I've already got that set to true, and it still happens

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Is there a gpiozero-style Python package for sending gcode over a serial connection? I can find a lot of hacked-together scripts, but no nice reusable package so far.
Suppose @ben_nuttall is a good person to ask first. Any idea?

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In reply to @JanvierUK

@JanvierUK Happy birthday! Another year of successfully escaping youth

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In reply to @robinhouston

@robinhouston I voted "finite state machine" but my actual first thought was "is this one of those weird kink acronyms I have to be careful not to google?"

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This is simultaneously objectively rubbish and subjectively lovely.
My very first #plottertwitter

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For _reasons_, I want to know what the densest British coin is. I'm astonished that google doesn't already have the answer, but it does have this table.
Finally, a reason to use a spreadsheet!

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In reply to @christianp

So for reference, the 20p is the densest coin, with pretty much everything except 1p and 2p tied for second place.

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In reply to @bbarber_

@bbarber_ no, but my first guess is that the metal mix of the 50p is more hard-wearing, but too expensive for the 20p

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In reply to @lukejanicke

@lukejanicke I got an EleksDraw, a v v shonky alternative to the AxiDraw, but about 25% of the price.

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In reply to @Aldernero

@Aldernero @pentronik Next time you need this, MathJax has an SVG renderer, so probably has SVG versions of the fonts that you can use

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In reply to @pentronik

@pentronik @Aldernero Yeah, it might be best just to use MathJax itself to produce SVG files

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@ChronInvisSTEM Something similar recently started happening to my sternum. I didn't even know that was possible!

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I knew I chose the right day to be born twitter.com/snezanalawrenc…

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It's like they trained an AI to write my ideal arXiv preprint title twitter.com/mathHOb/status…

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In reply to @HigherGeometer

@HigherGeometer No thee and thou in this book from 1811, either. aperiodical.com/2013/05/all-sq…

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In reply to @HigherGeometer

@HigherGeometer and it's still in use in parts of Yorkshire today

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Today is my birthday! Please tell me fun maths facts

20 favourites 1 retweet

In reply to @edsouthall

@edsouthall I'm in my semiprime for the third year running. It's touch-and-go whether that will happen again

1 favourite 0 retweets

In reply to @FrancoKillTweet

@FrancoKillTweet Thanks, I love a bit of slack in my theorems!

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In reply to @edsouthall

@edsouthall

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In reply to @linguanumerate

@linguanumerate Homework! I love it!

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In reply to @honeypisquared

@honeypisquared Quantifiers! I love it!

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In reply to @evoluchico

@evoluchico @linguanumerate *gasping for breath*
I tried to get here as soon as I could, but my train left Newcastle at 10:37 and I had exactly the right change to buy a ticket 50% of the way but could buy a ticket for the whole journey in two different ways and

3 favourites 0 retweets

In reply to @BarbaraFantechi

@BarbaraFantechi It's got my name in it! I love it!

2 favourites 0 retweets

In reply to @ValerioCalvelli

@ValerioCalvelli @BarbaraFantechi mathb.in/48992

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@DBackstroem Satire! I love it!

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In reply to @rajenki

@RajenkiD @FrancoKillTweet nice!

1 favourite 0 retweets

In reply to @abeliangrape_

@abeliangrape_ thanks! I've heard of that game but never tried to play it. And it's World Logic Day too, apparently

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In reply to @christianp

@abeliangrape_ and happy birthday to you!

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In reply to @blatherwick_sam

@blatherwick_sam An overambitious approximation! I love it!

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In reply to @honeypisquared

@honeypisquared @RobJLow @DavidB52s word on the street is Dirichlet's box has at least two pigeons in it, _if you know what I mean_

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In reply to @icecolbeveridge

@icecolbeveridge A base-agnostic fact! I love it!

And thanks for the card, too

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In reply to @MsJSteel

@MsJSteel I didn't know that! Thanks!

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In reply to @abeliangrape_

@abeliangrape_ it's also Gödel's death day and Tarski's birthday

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In reply to @aaronSG15

@aaronSG15 Magic! I love it!

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In reply to @kyledevans

@kyledevans I've been seriously considering a full enumeration of all the routes around our estate, one a day

2 favourites 0 retweets

In reply to @chris_fairless

@chris_fairless are all these houses the same colour and that's the joke? Or are they different colours?

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Decided to compose a sea shanty:

My name's Aloisius
And my only wish is
That all of these dishes
Are full of fishes

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Today I'm doing a thing with social scientists where I'm supposed to make the case for doing teaching and learning online.
I know nothing about social science and I've had no time to prepare. I have no idea what I'm going to say!

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In reply to @k_houston_math

@k_houston_math the conceit is "should we keep doing this after lockdown?"

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In reply to @k_houston_math

@k_houston_math what aspects of online teaching have led to more and better conversations, in your experience? My impression, as not-a-teacher, was that everyone was struggling with engagement

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In reply to @christianp

Four pages into my draft notes: "but do I actually have anything to say?"

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In reply to @christianp

hmm, might as well use this Explain Everything subscription I accidentally paid for another month of

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths I bet there's a strong overlap with people who believe in the invisible hand of the market

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In reply to @robeastaway

@robeastaway is "Three Times Seven" by Doc Watson in the maths inspiration playlist? youtube.com/watch?v=tle4ET…

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In reply to @robeastaway

@robeastaway every time it comes on shuffle I think it'd be a great one for maths inspiration, then I can never remember if I've suggested it before

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In reply to @KangarooPhysics

@KangarooPhysics @alisonmartin57 @joshmillard @GerardWesty31 @crabbbaskets so is this a solution to the Icosian Game?

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I had a discussion last night with my mum about the warmth of my LED lightbulbs.
Apparently this is life in 2021 twitter.com/natluurtsema/s…

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In reply to @KangarooPhysics

@KangarooPhysics @alisonmartin57 @joshmillard @GerardWesty31 @crabbbaskets It's a out visiting each edge once, I think

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In reply to @KangarooPhysics

@KangarooPhysics @alisonmartin57 @joshmillard @GerardWesty31 @crabbbaskets Ah! I stand corrected

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This week I have answered @NclNumbas support emails from England, Wales, Ireland, Belgium, Spain, Sweden, Australia and the USA.
Wow!

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Mathematicians, get ready: a new reference point for "how many holes does this have?" arguments is coming. twitter.com/designboom/sta…

15 favourites 2 retweets

In reply to @christianp

Also mathematicians: finally, a real-world use for pairs of pants!

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In reply to @eleonorasfalcon

@eleonorasfalcon whaaaaaat?!

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In reply to @TeacherBowTie

@TeacherBowTie Ha!
A covid-era order of operations: Powers, Exponentials, eXponentials, Multiplication, Addition, Subtraction

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I decided to plot the number of users, and number of items created, on the @NclNumbas editor at numbas.mathcentre.ac.uk.

See if you can spot when lots of people realised they needed to plan for online-only teaching!

2 favourites 1 retweet

In reply to @nomad_penguin

@nomad_penguin @SeanMaths4EAL @mrbartonmaths random-people.glitch.me

2 favourites 0 retweets

Excuse me for reading the first paragraph and assuming the investment in the north would be on the same order of magnitude as the one in the south
bbc.co.uk/news/business-…

7 favourites 1 retweet

In reply to @edsouthall

@edsouthall @divbyzero That is glorious!

0 favourites 0 retweets

In reply to @helenarney

@helenarney Strong approval from our no. 1 Moana fan

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In reply to @FrancoKillTweet

@FrancoKillTweet Correct!

2 favourites 0 retweets

"I did everything I could to prepare dinner," I say, as the clock strikes midnight.

I make a mental note to check for ingredients in the fridge tomorrow.

2 favourites 0 retweets

A few days into #plotter fiddling, this is the first thing that has really made me go wow!
#plottertwitter
(video alt: a pen plotter drawing a really intricate diagram)

3 favourites 3 retweets

In reply to @christianp

Here's some of the other stuff it's drawn while I've been working out how to use it

1 favourite 0 retweets

In reply to @baabbaash

@baabbaash A new paradigm in 3d printing photography.
Cat's paw >> @henryseg's finger

2 favourites 0 retweets

A bar chart that is not a bar chart. Or is it?

6 favourites 2 retweets

In reply to @icecolbeveridge

@icecolbeveridge @RealityMinus3 Nice!

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In reply to @C_J_Smith

@C_J_Smith I love that wallpaper!

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith Ooh, that would wind me up

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It's a lovely book. twitter.com/evelynjlamb/st…

2 favourites 0 retweets

In reply to @mathforge

@mathforge Clothoid: length always the same, angle changes at a constant rate

2 favourites 0 retweets

In reply to @jjaron

@jjaron I had the same thought earlier when I was listening to a radio

1 favourite 0 retweets

February

Back at work after a week off, 160 unread emails. One of the first ones I read referred to "Semester 3". What fresh hell is this?!

10 favourites 0 retweets

In reply to @standupmaths

@standupmaths Did you do what I did, and on reading 'once every 200 years', scroll through your calendar app to find the previous and next years?

1 favourite 0 retweets

In reply to @christianp

@standupmaths because there's no way that factoid was worth doing the quick maths to work the dates out without looking at a calendar

1 favourite 0 retweets

In reply to @desdotdev

@desdotdev @standupmaths the leap year rule is more complicated: year N is a leap year if N is divisible by 400, or by 4 but not 100.

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett at that point, you need to ask what's the compressive strength of a numberblock?

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett On a related note, I thought recently about how @numberblocks could talk about infinity not being a number. If you had an infinitely big numberblock, you could maybe say where its feet are or where the symbol on top are, but not both at the same time. So not a numberblock, QED

1 favourite 1 retweet

I've just published two @NclNumbas custom part types that I wrote for our coding theory module:
Codeword match numbas.mathcentre.ac.uk/part_type/130/… and
and
List of codewords numbas.mathcentre.ac.uk/part_type/131/…

0 favourites 1 retweet

I'm going to be running some training for beginner @NclNumbas users at 14:00 GMT today. Register at numbas.org.uk/blog/2021/01/n…

0 favourites 1 retweet

Just tripped and dislocated my shoulder for a few seconds. Ehlers-Danlos is no joke!

1 favourite 0 retweets

In reply to @christianp

it hurts so much!

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I once saw a special effects supervisor called 'Nikolay Fartunkov' in the credits of a TV show.
Ever since, particularly thunderous coughs are met with the question "Are you Nikolay?" twitter.com/HaggardHawks/s…

20 favourites 8 retweets

In reply to @RectangleWorld

@RectangleWorld @pentronik @EMSL @abey79 I think youalso need the occult extension github.com/LoicGoulefert/…

5 favourites 0 retweets

I think I got my plotter to draw a rainbow! #plottertwitter

18 favourites 2 retweets

In reply to @becky_k_warren

@becky_k_warren Never seen one 🤷‍♂️

1 favourite 0 retweets

In reply to @TimothyDaw

@TimothyDaw @Kit_Yates_Maths @DeliaOnline That is a brainwave!

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In reply to @peterrowlett

@peterrowlett I suppose you've ruled out some days in the recent past that you could have been infected. If every day has the same risk, then yes you're less likely then usual.
(this analysis brought to you by the League For Not Engaging With Bayesian Statistics)

0 favourites 0 retweets

In reply to @Grallator

@Grallator @peterrowlett Should but won't

0 favourites 0 retweets

I am not willing to be friends with anyone who says that calculating percentages is easy. twitter.com/DaveGorman/sta…

2 favourites 0 retweets

In reply to @mathforge

@mathforge @monsoon0 @vihartvihart christianp.github.io/hexaflexagon/ can either take a photo from your webcam or an uploaded image, and stick it on a hexaflexagon

4 favourites 1 retweet

In reply to @pkrautz

@pkrautz alternative to what?

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Geordies: do you say 'eesh'? Every time I say it I catch myself in case I'm accidentally revealing I technically grew up in Sunderland

2 favourites 0 retweets

In reply to @der_flow_

@der_flow_ I bought an EleksDraw recently. I've got it working, but it's taken loads of work and the build quality isn't great.

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In reply to @artandtech

@artandtech @der_flow_ Eleksdraw, not eleksmaker. Main problem is that the rail for the pen holder was incredibly stiff, even after lubrication. I've stuck some weight on it to overcome friction, but that means it tips a bit when fully extended.
The screw thread on some of the plastic died quickly, too

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In reply to @christianp

@artandtech @der_flow_ It didn't come with a socket adaptor for the power supply, just the generic part, so I had to buy one. The assembly instructions are absolutely awful. Eventually found a YouTube video describing how the delivered kit differs from the one in the instructions

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In reply to @robeastaway

@robeastaway @alexbellos fab! If I haven't given you some feedback on that in a day or two, please remind me to read it!

1 favourite 0 retweets

In reply to @christianp

@robeastaway @alexbellos I've read it and enjoyed it. The engagement x puzzliness space is a good one, which I'll try to bear in mind

1 favourite 0 retweets

In reply to @christianp

@robeastaway @alexbellos There's a book by Smarandache called "Only questions, not solutions!"
I wonder if it would be good to write a puzzle book called "Only questions, not puzzles!" where you give the 'maths question' part like your simultaneous equations, and the game is to come up with the puzzle

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In reply to @robeastaway

@robeastaway @SparksMaths Gahh, that's exactly the wrong time of day for me!

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In reply to @TobyMeadows

@TobyMeadows Jeff Miller says 1907: jeff560.tripod.com/set.html

2 favourites 0 retweets

In reply to @northumbriana

@northumbriana Ah, so does that explain the plane I saw approaching Newcastle Airport like it was dodging anti-aircraft fire today?

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The 3-year-old asked for a rainbow heart.
#plottertwitter

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In reply to @becky_k_warren

@becky_k_warren An EleksDraw. It's cheap and cheerful, and I've had to write a lot of code to make it do anything.

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In reply to @becky_k_warren

@becky_k_warren I've heard the axidraw is pretty much ready to go, but its expensive

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The names in this question were chosen by @NclNumbas at random, based on ONS data.

Teachers: how many of these names have you used before in questions you've set?

6 favourites 3 retweets

In reply to @stem_wales

@stem_wales @NclNumbas full details at github.com/numbas/numbas-…
I got ONS data with first name and gender for everyone born in England and Wales 1996-2015.
It picks uniformly at random from that set (plus an arbitrary "no-gender" about 1 in 100 of the time)

3 favourites 0 retweets

In reply to @Cshearer41

@Cshearer41 @NclNumbas ooh, that's a good point - it doesn't have "pick a name starting with this letter"

4 favourites 0 retweets

In reply to @Cshearer41

@Cshearer41 @NclNumbas coincidence, I think!

2 favourites 0 retweets

In reply to @christianp

@NclNumbas for those who want names but not Numbas, here's a standalone name picker: random-people.glitch.me

6 favourites 0 retweets

In reply to @drvinceknight

@drvinceknight Congratulations!

2 favourites 0 retweets

In reply to @chris_fairless

@chris_fairless (young, born in England and Wales)

1 favourite 0 retweets

In reply to @christianp

@chris_fairless (still using the first name assigned at birth)

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In reply to @soupie66

@soupie66 don't just use colour. In visual things you can use patterns as well (or instead), and in text you can give other information, e.g. instead of "the red circle" say "the red circle at the top-left"

2 favourites 0 retweets

In reply to @christianp

@soupie66 don't change the colour of text to bring attention to things. The number of times I've missed important information because it's "highlighted" in red!

4 favourites 0 retweets

In reply to @DrEugeniaCheng

@DrEugeniaCheng I've seen Indian students use these before, apparently earnestly. I also have a few very old textbooks that use them. @mathsjem might know roughly when they went out of fashion, if you're interested

0 favourites 0 retweets

In reply to @henryseg

@henryseg You Really Must Understand Quaternions Sooner Or Later: The Puzzle

6 favourites 0 retweets

In reply to @christianp

@NclNumbas Following feedback from @Cshearer41 and some colleagues, I've updated the "random people" extension: it now represents non-binary people better, there are functions to pick people with a given initial or distinct initials, and it's easy to use a different country's data set

5 favourites 0 retweets

In reply to @christianp

@NclNumbas @Cshearer41 Here's a question that uses French data from @InseeFr: numbas.mathcentre.ac.uk/question/89793…

1 favourite 0 retweets

In reply to @NatalieBayfield

@NatalieBayfield @ch_nira @snezanalawrence @MelroseStewart1 @SophieBays I agree

1 favourite 0 retweets

This question becomes more defensible when presented as a picture, and the time given on a clock.
I think the awkward fractions are a result of trying to find a work rate that's close to 2 hours per lawn, but produces fractions with small denominator. twitter.com/Dean_of_math/s…

8 favourites 1 retweet

In reply to @hollykrieger

@hollykrieger this is like when Gödel found an inconsistency in the US constitution during his immigration hearing, but way more bland

4 favourites 0 retweets

In reply to @christianp

@hollykrieger (I'm sorry you have to do this stupid test. I tried my best to vote in a way that would stop it happening)

4 favourites 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam

1 favourite 0 retweets

In reply to @ESMathTeacher

@ESMathTeacher The only person I know who got engaged on valentine's day is now going through divorce proceedings, so...

1 favourite 0 retweets

Today I have had a lovely time writing this @NclNumbas question about isomorphisms of a binary tree: numbas.mathcentre.ac.uk/question/90020…

3 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl I'd say thank you for not saying "no it isn't!" again

3 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Nice! I give it ^vv out of ^vv

2 favourites 0 retweets

In reply to @christianp

@NclNumbas Today I have had a lovely time writing a @NclNumbas extension for graph theory.

2 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared I mean, it's highly unlikely to be my year 9 maths teacher, but that's all I'm getting

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK Based on the experiences of my cousin, who lives in a van down by the river, I reckon no

1 favourite 0 retweets

Omg it draws TeX! #plottertwitter

35 favourites 4 retweets

Idea: a theorem verifier with the mindset of a toddler. When it starts it rejects everything, so you have to show it the two theorems it already knows like a hundred times before it'll admit that some things are, in fact, true

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Can't not read it as "finitely generated abelian grape"

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Earlier this week I nearly set a group theory question "what's the minimum number of generators for a presentation of this group?" with an expected answer greater than 2, so I can sympathise with whoever wrote this prompt twitter.com/Kit_Yates_Math…

3 favourites 0 retweets

In reply to @christianp

.. and now I've done a second's thinking and googling, the factoid I half-remembered only applies to finite simple groups.
Which the group in question was, so maybe I haven't made an error about my error?

1 favourite 0 retweets

Me: ooh, maybe 1.5MB is too big for an entire package that students need to load to do their exam.

My employer: let's stick a different 1.6MB "hero image" at the top of each of our public-facing pages

6 favourites 0 retweets

In reply to @matthen2

@matthen2 it says "could not find animation"

2 favourites 0 retweets

Whoops, I put The Unthanks on and yet again I failed to prepare myself emotionally for Annachie Gordon

1 favourite 0 retweets

In reply to @christianp

oh no, it's The Testimony of Patience Kershaw that regularly destroys me. The opening notes of Annachie Gordon are amazing, though

0 favourites 0 retweets

In reply to @panlepan

@panlepan

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In reply to @christianp

@panlepan actually...

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In reply to @panlepan

@panlepan yeah, but I imagined moving a trapezium rather than a long triangle as my first step

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Putting the finishing touches to my history of mathematics in the north-east of England, "E to the Why Aye"

12 favourites 1 retweet

In reply to @gregeganSF

@gregeganSF Worse: since there are more women than men, the median sperm count is already zero!

27 favourites 0 retweets

Whoever works in the wilko warehouse didn't realise...

19 favourites 2 retweets

In reply to @christianp

... they could have done this

6 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK @igavels !! My little one has been obsessed with My First Purim on cbeebies all day. I'll have to show her this tomorrow

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So obliging of my knee to dislocate in order to make space for my baggy trousers when I kneel.
#EhlersDanlos

2 favourites 0 retweets

March

In reply to @kitwallace

@kitwallace @baabbaash Nice! I respect your patience implementing that algorithm in OpenSCAD. Have you tried SolidPython, which lets you do some work in python before getting OpenSCAD to do the CSG?

0 favourites 0 retweets

In reply to @christianp

That's better: now the symbols don't look like the ghosts of overfull hboxes

1 favourite 0 retweets

In reply to @ZoeLGriffiths

@ZoeLGriffiths Congratulations!

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In reply to @KarenCampe

@KarenCampe @benorlin @joemazur3 Yes, you have to interview him if you can. It's a really good book

2 favourites 0 retweets

In reply to @benorlin

@benorlin If you want to do a whole episode about why there should be a unary division symbol, I'm available. But that's all I've got to talk about

1 favourite 0 retweets

In reply to @christianp

@benorlin I would like you to promote the campaign to increase awareness of the Bengali currency symbol for "numerator one less than the denominator", ৸.

2 favourites 1 retweet

In reply to @christianp

@benorlin and I also think it's important that you're aware of this experiment showing that Roman numerals are easier than place-value frontiersin.org/articles/10.33…

2 favourites 1 retweet

In reply to @honeypisquared

@honeypisquared sainsbury's gouda has got me through lockdown

2 favourites 0 retweets

In reply to @benorlin

@benorlin Just this PDF with a proposal to add another Bengali currency symbol to unicode: std.dkuug.dk/JTC1/SC2/wg2/d…
I have a feeling I saw a web page about it once, but the symbol's main use now seems to be by Harry Potter fans, so Google isn't much use

1 favourite 0 retweets

In reply to @christianp

@benorlin I've found this pramukhime.com/blog/type-beng…

1 favourite 0 retweets

In reply to @RobJLow

@RobJLow @katemath I suppose a hunch, a list of primes, and counting up in multiples of 13×53² from 1352999985012

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In reply to @RobJLow

@RobJLow @katemath I think the hunch is: if I pick two two-digit numbers a and b, there'll be a number with this property ab2cd, with c and d 4 or 5 digits. Then there are few enough choices of c and d to check by multiplying the lot out

3 favourites 0 retweets

In reply to @aap03102

@aap03102 @Mr_BUFF_it @edsouthall @alonamit @FryRsquared @aperiodical @numberphile you mean I've n thinking about this number for days and I've literally already written a whole article about it?

1 favourite 0 retweets

Just the number line
#plottertwitter

13 favourites 2 retweets

WHAT IS THIS MADNESS??

Wikipedia says that in Croatia, decimal notation alternates between commas and dots for each power of 1000.

WHY

31 favourites 1 retweet

In reply to @benorlin

@benorlin @MathAndCobb @dujella1 #TrillionaireProblems

4 favourites 0 retweets

In reply to @benorlin

@benorlin @MathAndCobb @dujella1 youtube.com/watch?v=M_ZDRQ…

1 favourite 0 retweets

In reply to @christianp

@benorlin @MathAndCobb @dujella1 in fact, 1 trillion Zimbabwean dollars is only 2 million quid, so it's possible somebody actually has this problem

2 favourites 0 retweets

It's March, so time to start thinking about it: who's up for a #BigMathOff this year?

17 favourites 0 retweets

In reply to @graveolens

@graveolens @FedericoArdila @hypergeometer There's also Shamos' Catalog of the Real Numbers euro.ecom.cmu.edu/people/faculty…

4 favourites 1 retweet

How many different prime numbers could a Premier league team's points total hit in one season?
Each team plays 38 matches. No points for a loss, 1 for a draw, 3 for a win.

4 favourites 3 retweets

In reply to @PaddyMaths

@PaddyMaths @blatherwick_sam That's a whole different kettle of frogs!

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Nice!

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You, a tech startup with millions in angel finance: made an app to turn handwritten maths into TeX.

Me, just the worst kind of smart alec: convinced a pen plotter to turn TeX into handwritten maths

#plottertwitter

18 favourites 2 retweets

In reply to @JanvierUK

@JanvierUK @ChefclubNetwork WHYYYYYYYYY

0 favourites 0 retweets

Hooray! I was just thinking about Geometry Daily yesterday. What a coincidence! twitter.com/Tilman/status/…

2 favourites 0 retweets

In reply to @verytiredrobot

@verytiredrobot It's just MathJax, really - I get mathjax to lay out TeX in SVG, then replace each of its symbols with a single-stroke version I traced over the original.
I considered just doing a straight DVI to SVG conversion, but I only really want maths layout

1 favourite 0 retweets

Adjusting the index for my new collection of essays appreciating obscure bits of maths, "Caring for the Squircle"

3 favourites 1 retweet

every time I try to use the onenote app on android, I get wound up because it doesn't have the "insert vertical blank space" tool

2 favourites 0 retweets

I'm greatly enjoying following Doron Zeilberger's glee in this paper, arxiv.org/abs/1208.2258, via @PeterKagey, as he avoids using Taylor series, then radicals, then even subtraction, to prove a result in combinatorics

2 favourites 0 retweets

In reply to @christianp

@PeterKagey he waves away operations like a sleight-of-hand magician vanishing your watch. It's a sight to behold

2 favourites 0 retweets

In reply to @keenanisalive

@keenanisalive you might already know this, but just in case you don't, inkscape has the same thing, under "Path -> Outset". So you'll be able to find the code for that somewhere

5 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @peterrowlett Strong work

1 favourite 0 retweets

I'd like it if my email client showed the number of threads with unread messages, instead of just the number of unread messages.

#MundaneWorkTweet

3 favourites 0 retweets

In reply to @statto

@statto Is this about famous people having a public-facing page that anyone can follow, without having to be proper friends? Their relationships are sometimes interesting to their followers

1 favourite 0 retweets

I've just seen someone using the symbol φ for the empty set.
I need to go and have a lie down.

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Similar to technical debt, the accumulation of technical problems over time due to more pressing concerns, I have a fun maths debt.
My current balance: five papers open in tabs on my desktop, twelve on my phone

5 favourites 0 retweets

Have just discovered someone generating @NclNumbas questions using @racketlang. Can't yet see why.
More power to them, I suppose?

0 favourites 0 retweets

In reply to @christianp

victorians: demonstrate refined sensibilities by falling gravely ill when presented with the wrong cutlery

me: six-week catatonic state brought on by overfull hbox

9 favourites 0 retweets

In reply to @kyledevans

@kyledevans hey kyle your broadband's so slow I bet you don't even get the end of thi

3 favourites 0 retweets

In reply to @kyledevans

@kyledevans Your broadband's so slow you play Bamboozle whole you wait for twitter to load

1 favourite 0 retweets

In reply to @bbarber_

@bbarber_ @icecolbeveridge YES

0 favourites 0 retweets

In reply to @merlin_nimue

@triviALGebraist YIKES

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In reply to @TheRandomMtrix

@TheRandomMtrix Yeah, I understand why it happened, and I've definitely done similar in the past

0 favourites 0 retweets

Check this out: I'm about to make a fencepost error.
I need to evenly space six more planks between these two.
Tweeting this as proof that I at least had the thought. Will update you afterwards if I do the sums right

3 favourites 1 retweet

In reply to @christianp

Well, I didn't make a fencepost error but I did claim 49÷7=6, so let's call it a draw

2 favourites 0 retweets

@asycartoons Thanks for the cartoons!

0 favourites 0 retweets

In reply to @FogleBird

@FogleBird Look at @alisonmartin57's stuff

1 favourite 0 retweets

In reply to @Coni777

@Coni777 I'm always happy to see ⋛, "greater than, equal to, or less than". It looks redundant, but along with ⋚ it fills the same sort of role as ± and ∓, tracking branches with different signs

7 favourites 1 retweet

I hereby declare it Underappreciated Combinations of SI Units Day.

To start with, what could you justifiably measure in meganewtons per hectare?

10 favourites 2 retweets

A beautiful coincidence, but I'd be very suspicious of anyone who gave me that measurement in those units twitter.com/Pecnut/status/…

3 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Nice! Though I think I'd measure that in giganewtons per hectare, unless it was a very shallow lake

1 favourite 0 retweets

In reply to @christianp

A herd of cows coming in for milking.

A cow weighs about a tonne, or 1000kg, so a herd of 100 cows would apply a force of about 1 meganewton to the ground. When they're coming in for milking , I reckon they could all fit in a 100m×100m area, or a hectare.

4 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA *working out if I'd be happy to share a square metre with three other people*

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In reply to @miclugo

@miclugo there's a Randall Munroe comic about this somewhere, imagining a tube of fuel following the path of a car

1 favourite 0 retweets

In reply to @christianp

What could you justify measuring in microgram-metres per second?

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Yes, fair point. I thought about that, and convinced myself pressing RT and like was enough to let you know I liked your suggestions, but I could've explicitly said something

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Cool. And for the bridge one, I think my conclusion is that I would be happy to share a square metre with three other people. At least, I think I've been on trains packed more tightly than that. I really did need to think about it!

1 favourite 0 retweets

In reply to @MB_Whitworth

@MB_Whitworth Nice!

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In reply to @honeypisquared

@honeypisquared CRC: home of fascinating books that you'll never be able to afford. It almost guarantees that only people with access to uni libraries will ever read the stuff they publish.

This isn't advice that scales well, but if you want to learn about chip-firing, talk to @JimPropp

3 favourites 0 retweets

In reply to @christianp

@honeypisquared @JimPropp have re-read your tweet, and maybe you already know about chip-firing. Whoops!

2 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared @JimPropp absolutely fair! The price is prohibitive

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I love that this project is still going twitter.com/l_incompletude…

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Have accidentally implemented the opposite of mastery assessment: the student must revisit every topic until they fail it.

Let me just switch that if statement the other way round...

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Here's something you can do without any calculation, assuming you've had the same realisation I've just had:

Write down a multiple of 2¹⁰⁰

3 favourites 1 retweet

In reply to @DavidKButlerUoA

@DavidKButlerUoA the second thought is the one I had

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In reply to @christianp

I should have specified: write down a number as a sequence of digits

1 favourite 1 retweet

Crikey, I just did a google search whose top hit was a usenet post from 1998!
I'm truly plumbing the depths of mathematical notation lore

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In reply to @christianp

it also produced this intriguing paper arxiv.org/abs/0907.0918

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In reply to @mrosvhs

@mrosvhs Can you easily write down its digits?

1 favourite 0 retweets

In reply to @mathsgeek71

@mathsgeek71 if you want it to

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In reply to @ZenoRogue

@ZenoRogue I'll have to think about that. Can you do ternary without really thinking, after you've had some insight?

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In reply to @OLonguet

@OLonguet n'importe quel mesure entre 2,5 et 3,5 est un bon travail!

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REF, TEF, KEF - soon there'll be no more letters LEFt! twitter.com/UniofNewcastle…

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Digging holes is hard.

That is all I have (the energy) to say.

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You know how wise people put crosses through their handwritten 7s and 0s to differentiate them from 1s and Os?
Why don't we put a cross through a 6 so you can tell it apart from an upside down 9? Like ð but flipped

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A game for two players: you each pick a real number between in the interval [0,1]. Whoever picks the highest number wins. If you both pick the same, you go again.
Play three times. You can't pick the same number more than once.

Is there a strategy?

5 favourites 1 retweet

In reply to @VinceVatter

@Vatter Yes, synchronously and in secret. Assume they can reveal any real number in finite time.

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In reply to @sarahlovesmaths

@sarahlovesmaths Picking 1 would win you the first round, but you can't pick it again in the other two

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In reply to @icecolbeveridge

@icecolbeveridge I'm just going to Basque in that pun for a bit

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Mathematicians: the first step in solving a problem is to write your problem out in the simplest terms you can.

Also mathematicians:

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In reply to @ShriramKMurthi

@ShriramKMurthi If there's a context where they make perfect sense, I'd love to know what it is. I *think* I can see the watermelon analogy in the first diagram, but it falls apart for the others

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Would anyone like to receive a mathematical postcard from me?

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In reply to @edsouthall

@edsouthall I'm currently stuck in a field

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In reply to @TheCRISPRGuy

@chkyourbrain DM me your address

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In reply to @soupie66

@soupie66 DM me your address

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In reply to @panlepan

@panlepan *

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In reply to @panlepan

@panlepan Yes, that's the one I was looking for!

1 favourite 0 retweets

In reply to @christianp

OK, before this gets out of hand, I'll stop it here. I'll do my best to send a postcard to everyone who's asked so far.

1 favourite 0 retweets

In reply to @alisonkiddle

@alisonkiddle can you DM me your address?

1 favourite 0 retweets

In reply to @Cshearer41

@Cshearer41 can you DM me your address?

1 favourite 0 retweets

In reply to @ionicasmeets

@ionicasmeets can you DM me your address?

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In reply to @adil_3

@adil_3 can you DM me your address?

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In reply to @nthpijots

@nthpijots ooh, Australia might be a bit of a stretch. Would you accept a digital one?

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In reply to @9jamind

@9jamind can you DM me your address?

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In reply to @mathzorro

@mathzorro the USA might be a bit of stretch. Would you accept a digital one?

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Another example for make-it-rain-bloomberg.glitch.me twitter.com/BrotherKD/stat…

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Absolutely top stuff. I'd like to say I didn't tempt a global logistics crisis into existence with my tweet, but the facts are hard to argue with twitter.com/MB_Whitworth/s…

3 favourites 1 retweet

In reply to @ben_nuttall

@ben_nuttall The answer is 1, in units of my choosing

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In reply to @madebyburton

@madebyburton can you DM me your address, please?

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@jenieuwedocent can you DM me your address please?

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In reply to @PennigUlrich

@PennigUlrich They turn out to be easier to make than I guessed. Can you DM me your address?

0 favourites 0 retweets

In reply to @pathhandwaving

@pathhandwaving can you DM me your address?

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In reply to @davidoslive

@davidoslive can you DM me your address?

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In reply to @stecks

@stecks I won't stand for this milliard erasure

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I've been thinking about the best way to present a mathematical thought in a tweet. When I tweet a prompt or question, it's often hard for you to determine:
* do I have an answer in mind?
* do I believe there's a correct answer?
* is this a serious question?

7 favourites 1 retweet

In reply to @christianp

...
* how much thought have I done about this so far?
* how much do I care about the answer?

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In reply to @christianp

For example, this recent question: twitter.com/christianp/sta…

The answer I had in mind was "no", if philosopher-kings are playing, but I was interested in whether you could ignore that and have a go at playing anyway.
I thought about it for a couple of minutes in the shower

3 favourites 1 retweet

In reply to @christianp

I'm not sure if I should add something to this kind of tweet to let you know where I'm coming from.

3 favourites 1 retweet

In reply to @christianp

I like how @jamestanton often tweets thought-provoking questions, and it's rarely clear if James knows the answer, or if there even is an answer. Sometimes it's a well-known theorem, other times something that just occurred to him.

6 favourites 1 retweet

In reply to @mathforge

@mathforge @jamestanton Do you think that using #Puzzle would imply that I know the answer?

1 favourite 1 retweet

In reply to @stecks

@stecks @OnlyConnectQuiz @VictoriaCoren @gheizhwinder @aPaulTaylor 🎉🎉🎉🎉🎉

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In reply to @honeypisquared

@honeypisquared This kind of pyramid, or... ?

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It's extremely on brand that the mathematical postcards I sent have all had "World Autism Week" printed on them in the postmark

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In reply to @Cshearer41

@Cshearer41 Glad you like it! I sort of ran out of time to make it non-shoddy.

Anyway, I looked in Mathographics for ways of drawing eggs, and didn't find anything easy. I've just picked it up again and noticed the cover

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In reply to @Cshearer41

@Cshearer41 It claims it's fancy, but the batteries gaffer taped to the pen holder as counterweights undermine that somewhat

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In reply to @LoveInner

@LoveInner @Cshearer41 that is just the equation of an ellipse: you've got pi/4 instead of x/4 in the exponential, so it's constant.
I also realised after putting the card in the postbox that it should be 5/4

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In reply to @ilarrosac

@ilarrosac @Cshearer41 Yes, I realised I had it the wrong way round after I'd posted the card!

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In reply to @MathsTechnology

@MathsTechnology @MEIMaths that salary!!! I'm in the wrong job

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In reply to @kyledevans

@kyledevans And here's that report: newtonproject.ox.ac.uk/view/texts/nor…

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My new nickname for the toddler

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In reply to @christianp

(from this paper: arxiv.org/abs/2012.14513)

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In reply to @JavieRonquillo

@JavieRonquillo @mathhombre @rebin3 @WODBMath How would it work? You give it four images, it arranges them in a square under the text "Which one doesn't belong?"?

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April

Hello, @glitch! My 3-year-old wants to know if your fish have names

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In reply to @BernhardWerner

@BernhardWerner @JavieRonquillo yeah, I get that

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In reply to @peterrowlett

@peterrowlett good point about the aspect ratio. I've changed it to make it 16:9. We'll see if this is any better.

I have the same problem with the link in firefox on my desktop, but not on my phone.

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In reply to @glitch

@glitch She suggests Martha and Dee

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In reply to @standupmaths

@standupmaths Did you see the artisanal integers sites, back in the day?

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In reply to @DanielColquitt

@DanielColquitt Well done! I dug a much smaller border than that last year and I decided to quit gardening afterwards

1 favourite 0 retweets

In reply to @nhoskee

@nhoskee @BernhardWerner @JavieRonquillo Now it's pointed out, I get that, but I'd have to delete the original tweet

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In reply to @christianp

My first tweet about this contained an example using pictures of humans. A couple of people rightly pointed out that that could lead to some unwanted reactions to the prompt, which I hadn't realised. I've deleted it, so here's another attempt

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I've made a tool for making "Which One Doesn't Belong?" pictures.

You can put text or pictures in each square, and change the colours of the background and text.

wodb-maker.glitch.me

#WODB

90 favourites 24 retweets

Truth is subjective.
The children think I've put a climbing frame in the garden.
From my perspective, I've increased the genus of my mowing surface.

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In reply to @alisonkiddle

@alisonkiddle A quarter, but I'd want the hot peri peri and a coleslaw side with it

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In reply to @alisonkiddle

@alisonkiddle OK. Drink refill while I'm up?

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It's a good thing the universe is eventually going to fizzle into nothingness, because otherwise someone would be born in a year that would take more than their entire lifetime to write down on the birth certificate, and that's no way to live

14 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge @madebyburton @WhiteRoseMaths @rekenrek101 @aperiodical Can't remember if it's in the post, but once I bought the domain hotmathematicians.com so I could have the email address christian@hotmathematicians.com, and similar for anyone else who wanted one.
Wasn't committed enough to the bit to renew it after a year

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In reply to @madebyburton

@madebyburton @icecolbeveridge @WhiteRoseMaths @rekenrek101 @aperiodical Indeed

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In reply to @bethanyaus

@bethanyaus @hvhuizen62 @ionicasmeets You read from bottom to top. It baffled me for a while too

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In reply to @christianp

@bethanyaus @hvhuizen62 @ionicasmeets Although it looks like the i and j diagrams are the wrong way round. Oops!

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In reply to @jonathanavt

@jonathanavt @ionicasmeets The i and j diagrams are accidentally swapped, and you read from bottom to top. Does that help?

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In reply to @TedG

@TedG @aperiodical A few minutes

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths At least you didn't make the other classic mistake and microwave some metal

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In reply to @DrEugeniaCheng

@DrEugeniaCheng Same! My wife took our daughter into hospital yesterday for minor surgery, so I started packing her lots of tasty snacks. She said "I won't be able to eat, I'll be too worried."
We're similar in lots of ways, but that just didn't compute for me.

1 favourite 0 retweets

In reply to @heavymetalmaths

@heavymetalmaths @adil_3 🤔

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In reply to @christianp

I've updated my #wodb maker to prompt for image descriptions, and to show you suggested alt text for the final image.
Suggestions for a better format for the alt text are welcome!

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Is there a name for an acrostic, but each line starts with the same letter?
I just noticed I wrote one of those in a rather long email.

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In reply to @SamHartburn

@SamHartburn Lines from curves, digestive style!

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I feel very dyspraxic today.
In the last fifteen minutes I banged my leg on the landing, spilled juice on the ceiling, and missed my mouth with the toothbrush.

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The international conference on e-assessment in mathematical sciences is taking place online 21st June to 2nd July this year.
It's free, the schedule is relaxed, and there will be some great talks.
Registration is now open: eams.ncl.ac.uk

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Headline: "Covid: Younger Brazilians fall ill as cases explode"

I first read that as "Younger Brazilians explode as cases fall", which would be much worse!

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In reply to @Pecnut

@Pecnut @BlindMath @jeremybradley I didn't know you were in Durham, Adam!
Hello from very slightly further north, both of you.

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Who knew about this Roman numeral for ten thousand? ↂ
And apparently there's one for a hundred thousand too: ↈ

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I love it when I search for something really niche and someone's already made it.
Here's a dependency graph of the propositions in Euclid's Elements, drawn by @itsthomson
ocf.berkeley.edu/~thomson/eucli…

5 favourites 4 retweets

In reply to @samholloway

@samholloway I've had a lot of those over the last month or so. I hadn't been able to guess why they're doing it, but "from the same office" makes sense.
Do some big companies buy blocks of mobile numbers for company-provided phones?

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In reply to @kyledevans

@kyledevans I was halfway through factorising 810 before I realised I'd misread the first one

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In reply to @soupie66

@soupie66 @MathematicsUCL yeah, there are a few more in Unicode, at least:

ↁ = 5,000
ↂ = 10,000
ↇ = 50,000
ↈ = 100,000

Whether those are the same as D and M is maybe up for debate

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In reply to @peterrowlett

@peterrowlett plot twist: the bookmark is a USB key containing thousands of digital books

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Here's a thing: while writing a document about decolonising our curriculum, Word's "Editor" feature popped up. It gave me a low spelling score because of...

all the foreign names it didn't know!

What a great example to include.

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In reply to @christianp

Dear Word,
"In formal writing, try spelling out the words" is unwanted advice. I rarely write formally.

Yours sincerely,
Christian Lawson-Perfect

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I remember seeing a map of the world (or just Europe?) showing the standard form of the equation of a straight line in different countries.
I can't think what to put into google to find it again. Can anyone help me?

1 favourite 1 retweet

In reply to @ch_nira

@ch_nira is there a canonical version of your "Black Heroes of Mathematics" talk online anywhere? Or if not, where's the most recent recording?

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In reply to @BernhardWerner

@BernhardWerner not the one I can remember seeing, but I wouldn't be surprised if one is a knock-off of the other.
Which formula did you learn?

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In reply to @christianp

@BernhardWerner thank you for that link, by the way. How did you find it?

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In reply to @El_Timbre

@El_Timbre that's great, thanks!

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In reply to @christianp

@El_Timbre You might know this: has (y-y1) = m(x-x1) replaced y=mx+c in the national curriculum? If so, when did that happen?

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In reply to @El_Timbre

@El_Timbre Ah, so our maths undergrads would have learned the other form in maths a level, but someone with just GCSE would only have y=mx+c?
I'm surprised! The coordinate form seems much more useful

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In reply to @ch_nira

@ch_nira Thanks! That's what I thought was the most recent one

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In reply to @jjsanderson

@jjsanderson We have the same helmet! Helmet twins!

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Mathematical post from @ionicasmeets!
Bedankt voor de boekaanbeveling!

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In reply to @ionicasmeets

@ionicasmeets Well I've got to get it now!

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In reply to @alisonkiddle

@alisonkiddle Last digit probably 8. First digit probably 2. Check 40+16=56.

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Doing that thing where you play competitors in a circle of chess games against each other, but passing my uncle's football opinions to my brother-in-law, and vice versa

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In reply to @DrCaroSummers

@DrCaroSummers I'd love to know how much it's up to the whim of the individual writing the thousands of bits of text, and how much is intentional. Dutch duolingo really wanted me to know about turtles. Chinese is quite dry by comparison

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In reply to @TimHarford

@TimHarford @TimandraHarknes @BBCMoreOrLess Have you ever had @SophieBays on More Or Less? She loves Bayes' theorem more than anyone I've ever met. She gave a wonderful explanation of it as it relates to pregnancy tests when she won the #BigMathOff youtu.be/2-sz0f0Cdko

12 favourites 1 retweet

Cheeky little dodecahedron made out of a loo roll tube.

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In reply to @TobyBailey

@TobyBailey I like this a lot! I need to do more thinking about it when I'm not under a sleeping baby

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Current status: monkeys not in the barrel, but following a pretty pedestrian symmetry group

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In reply to @sasj_nl

@sasj_nl I like this one a lot!

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The baby has just expelled so much gas that I'm worried about his core temperature

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In reply to @Andrew_Taylor

@Andrew_Taylor @FryRsquared "Hey, kid! You needed an idea for your science project, right? Well, I need an innocent explanation for this lipstick on my shirt, so let's work together"

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"I listen to whatever's on the radio" : Decimal.
"Oh cool, you like this too": Binary.
"You might not have heard of it": Hexadecimal.
"I accompany her overtone singing with my hand-carved lute": HEPTAVINTIMAL

homepage.cs.uiowa.edu/~jones/ternary…

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In reply to @stecks

@stecks I got 3K problems but an unnecessarily obscure numbering scheme ain't one

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In reply to @icecolbeveridge

@icecolbeveridge @DannyKodicek @RobJLow @futurebird "although a definition cannot be false, it may be improper" books.google.co.uk/books?id=kQ8bA…

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett @mscroggs Phonics makes me so cross! Never mind that that's not how English spelling works, what about all the northern vowel sounds?

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It's just been autism awareness month and apparently tomorrow is the start of Ehlers-Danlos awareness month. If I keep getting diagnoses, you can be aware of me all year round!

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May

In reply to @MBarany

@MBarany @icm2022 @aperiodical Daud Mamiy says that boycotting has never been an effective way to solve problems. The boycott of apartheid South African sport was effective.

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo I bet @jjsanderson has a list

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Why did google call their AI department DeepMind when "The Wisdom of the Cloud" was, and remains, available?

1 favourite 0 retweets

In reply to @alisonkiddle

@alisonkiddle @mrsdenyer I have a pentagon picture for you! Would you like it now or on a postcard?

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In reply to @alisonkiddle

@alisonkiddle @mrsdenyer Here you go!

*Alison voice*: What do you notice? What do you wonder?

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In reply to @robeastaway

@robeastaway @SparksMaths given it's a Chinese rocket, it's Sino-soidal

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In reply to @DanielColquitt

@DanielColquitt Bad back club!
My back has decided it doesn't want to help the baby learn to walk any more. So now he can walk more easily than I can.

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In reply to @henryseg

@henryseg What a good video!

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I chant integer sequences as lullabies. Soporific for baby, brain exercise for me.
Here's a sequence that I came up with for this afternoon's nap:

1,2,3,2,4,5,4,6,4,7,6,4,8,9,8,10,8,11,10,8,12,8,13,12,8,14,12,8,15,14,12,8,16,17,16,18,16,19,18,16,20,16,21,20,16…

What's next?

9 favourites 1 retweet

In reply to @ZoeLGriffiths

@ZoeLGriffiths Go for it! Mrs L-P taught me a good one:
(Let CDD stand for 'cock-a-doodle-doodle-doo')

Let's count back in 1s from 10,
CDD
10,9,8,7
CDD
6,5,4,3
CDD
2 and 1 and don't forget the zero!
CDD

(Repeat for 2s from 20, etc)

1 favourite 0 retweets

In reply to @stem_wales

@stem_wales already in progress, thank you

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In reply to @ZoeLGriffiths

@ZoeLGriffiths When I'm in charge the green bottles fall off in Zeckendorf numbers.
The three-year-old is completely uninterested in maths and can't count past 15, so it's a solitary pursuit

1 favourite 0 retweets

In reply to @stem_wales

@stem_wales yeah, I saw that, and wasn't surprised to see Nim turn up given the rule behind my sequence, but it diverges quite early

1 favourite 0 retweets

In reply to @nicole_cozens

@nicole_cozens I agree!

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In reply to @Andrew_Taylor

@Andrew_Taylor I've definitely considered doing this in the past, where I don't want a break between cases so an if/else wouldn't do

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In reply to @DavidKButlerUoA

@DavidKButlerUoA This catches out so many first-time @NclNumbas question writers!
I wonder if I can get it to spot when this situation happens and suggest the right kind of feedback.
Which system does your bridging course use?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @NclNumbas Ah, thanks

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In reply to @christianp

This sequence is now in the OEIS: oeis.org/A343934
(spoilers!)

2 favourites 1 retweet

In reply to @PeterKagey

@PeterKagey Thanks! I was also surprised.
It's nice, but is it keyword:nice? (probably not)

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In reply to @stecks

@stecks Please let me see!

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Of all the attempts the three year old just made at saying 'Northumberland', I like 'All Thunder Land' the best.

13 favourites 0 retweets

In reply to @samholloway

@samholloway I've just found out that the one near Spennymoor has closed, leaving none in the north-east. End of an era!

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In reply to @stevenstrogatz

@stevenstrogatz @ATT app updates?

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Adventures in #EDS: found a comfortable place to put my leg

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Write the digit 1 eight million, one hundred and seventy seven thousand, two hundred and seven times in a row.

That's a prime number.

Discovered by Ryan Propper and Serge Batalov a few days ago. oeis.org/A004023

16 favourites 3 retweets

In reply to @lukejanicke

@lukejanicke You might want to sit down. I've got some bad news about 2

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In reply to @El_Timbre

@El_Timbre @icecolbeveridge lovely stuff!

Here's a technical thing: could you add the slide content as image elements, instead of background images, so that you can add alternative text for screen readers?

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Big respect to whoever made the map for this old quarry look like a ghosty face

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In reply to @samholloway

@samholloway oh wow, I hadn't realised that the Broadway in tynemouth is the same road as Wallsend high street!

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@katemath @alisonkiddle I sometimes catch myself switching between the two during the same number, and I can't work out why

1 favourite 0 retweets

In reply to @blatherwick_sam

@blatherwick_sam how many times have you sneezed?

1 favourite 0 retweets

I've worked out how to write an Elm app on @glitch!
Here's a minimal example: elm-lang.glitch.me

And here's a more complicated app: gaussian-origami.glitch.me

9 favourites 1 retweet

In reply to @DavidKButlerUoA

@DavidKButlerUoA I love these! Such a good idea

1 favourite 0 retweets

Found a new integer sequence but it looks so stupid I don't think I'll submit it

8 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge "Is it an anecdote?"
"Is it a coincidence?"
"No! It's N=1 Man!"

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π can stand for a variety of things in maths, but is 3.14159... the only constant it's conventionally used for?

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In reply to @christianp

and the same question, but for e

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In reply to @ben_nuttall

@ben_nuttall My first go at that tweet asked "is that all it can be used for", but I stared at it for a while before changing to "is conventionally used for", and your reply is why

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In reply to @GoranNewsum

@GoranNewsum yes, that's something I'm also interested in at the moment: different names for the same thing

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In reply to @ben_nuttall

@ben_nuttall For constants?

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In reply to @njj4

@njj4 none of those are constants though, right? In the sense that if we're both doing topology, my π might not be the same projection map as your π

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In reply to @Mat_Hunt

@Mat_Hunt thanks!

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In reply to @christianp

I'm also interested in any non-number constants with conventional names that you're aware of. At the moment I've only got ∅, for the empty set, and e for the identity permutation

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In reply to @christianp

ooh! i, j and k basis vectors!

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In reply to @ZenoRogue

@ZenoRogue it does for my purposes, and is in fact the example that prompted this train of thought

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In reply to @virtualcourtney

@virtualcourtney that stretches my understanding of what a constant is, but it's in the same sort of area, isn't it?

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In reply to @mattmcirvin

@mattmcirvin thanks for these! I guessed that physics would have a lot of constants, but I wasn't aware of any non-number ones. I'll go and look those up

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In reply to @mattmcirvin

@mattmcirvin I'd be more inclined to call the Kronecker delta a function

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In reply to @sarahlovesmaths

@sarahlovesmaths yeah, I'll take the named number sets.
I is tricky: you need a bit of context to say what dimension it lives in, unless you define matrix multiplication more expansively than the usual textbook definition

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In reply to @christianp

@sarahlovesmaths and I wonder if there's a list somewhere of all the different conventions for the standard basis vectors

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In reply to @sarahlovesmaths

@sarahlovesmaths how have I not watched that yet!

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In reply to @christianp

Complete graphs! K₅ etc

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In reply to @odedude

@odedude but those are both variables, right?

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In reply to @alisonkiddle

@alisonkiddle @edsouthall This morning my daughter asked me "why have you got so old?" as if it was a conscious tactic on my part

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In reply to @ben_nuttall

@ben_nuttall yes, I've always had to go to the website. I think the app says somewhere it only takes PCR tests

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Time for another round of "when is it OK to omit the multiplication symbol?"

I think for powers of numbers, it's fine to omit, e.g.

2²3² = 36.

What about subscripts, for the number base, e.g.

12₅23₅ = 331₅,

or do I need a multiplication symbol:

12₅ × 23₅ = 331₅.

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In reply to @christianp

Or, less esoterically, when I've got a subscripted variable followed by a number, e.g.

x₂4

(I will not accept "put the 4 first" as an answer)

1 favourite 0 retweets

In reply to @jjaron

@jjaron I think one reason this is worth noting is that it's easier for one huge company to take action to reduce plastic use than for thousands of small companies to coordinate

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In reply to @gregor_latimer

@LatimerGregor @jjaron Or, it's easier for 20 huge companies to resist regulation than millions of small ones

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In reply to @csgillespie

@csgillespie @Rbloggers that seems to be the whole rmarkdown source of the post, in the og:description tag. So does that mean it expected the RSS feed it came from to only have a short description?

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Tweeting this because I want to do it but don't have time, and I want someone to pester me about it in a few weeks' time:

I'd like to start a collection of mathematical notation ambiguities, inconsistencies, and unpleasantness. It'd be a wiki, or at least collaboratively edited

20 favourites 3 retweets

In reply to @icecolbeveridge

@icecolbeveridge @mathsjem well, I suppose they've both got alphas and betas?

1 favourite 1 retweet

In reply to @pkrautz

@pkrautz @zorkow I bet!

1 favourite 0 retweets

In reply to @BlindMath

@BlindMath @chadtopaz It does! Too many of our casualised teaching staff are only employed for term time. They officially have a right to be converted to permanent after four years, but often they're coincidentally sacked just before that happens

4 favourites 0 retweets

In reply to @Ayliean

@Ayliean @soupie66 A what where now

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In reply to @Ayliean

@Ayliean @soupie66 Ahhhhhhh

Well done

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One of the terrible laws in this article requires "schools to notify parents if sexual orientation or gender identity are going to be mentioned in class".

Supposing this law stays on the books long enough, someone is going to learn about LGBTQ+ issues from the mandatory warning. twitter.com/girldrawsghost…

1 favourite 0 retweets

In reply to @zorkow

@zorkow @pkrautz indeed

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Writing another chapter of my memoir, "I tried to do the maths, and now here we are"

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In reply to @HigherGeometer

@HigherGeometer @rob_cope_c Well, I think you should definitely talk to more people about maths.
I'm still sad about those interviews. I did one with @JimPropp that was unusable, and I would have really like to do more. One day!

1 favourite 0 retweets

In reply to @C_J_Smith

@C_J_Smith The number of times my sole contribution to a meeting is "Can we actually write that down somewhere though?"

1 favourite 0 retweets

I've just found some time to listen to @ch_nira's Life Scientific (bbc.co.uk/sounds/play/m0…)
"You don't need anybody's permission to be a mathematician" is a slogan for the ages

24 favourites 6 retweets

Hey @NCLMathsStats do we run a functional analysis seminar called "f∘g on the Tyne", and if not why not?

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Is this Simpson's paradox? twitter.com/JanvierUK/stat…

5 favourites 1 retweet

In reply to @robeastaway

@robeastaway A sum is just an average multiplied by n 😋

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In reply to @xmau

@xmau @robeastaway Correct

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I want to be one of those people who gathers their thoughts on twitter, sharing wisdom from their areas of expertise.

Instead, I'm answering tech support emails and gobbling peanuts to regain energy lost since the baby woke up at 04:30

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In reply to @ColinTheMathmo

@ColinTheMathmo @edsouthall @jfb_smoggy it is in Sunderland!

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In reply to @ColinTheMathmo

@ColinTheMathmo @edsouthall @jfb_smoggy despite living here my whole life, I'm not great at the accent!
Trying to sound it out in my head, I _think_ the verb would be less likely to be two syllables. I'd have to find a more authentic mackem to check, though

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In reply to @jfb_smoggy

@jfb_smoggy @ColinTheMathmo @edsouthall a diphtong, I think, but yes

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In reply to @christianp

@jfb_smoggy @ColinTheMathmo @edsouthall how does it sound on Teesside?

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I'd been trying to relate this to my work and not really getting it, but just now I got an email from a colleague.
Whenever a student asks for help, or I suggest a change, this person refers to class-wide summary stats as evidence that there's no problem to fix.
INCORRECT twitter.com/pwr2dppl/statu…

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This is the year Clever Hans gets his due, I'm sure of it twitter.com/abel_prize/sta…

1 favourite 0 retweets

In reply to @plusmathsorg

@plusmathsorg "multiplectic extension" sounds like something I'd need to go for a physio for, so my vote is for Parallel Transport

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A lot of my interaction with colleagues this year has been saying "are you _sure_ you want to make this 1 hour test available for exactly 1 hour?" and then punching a wall when they say "yes" twitter.com/jroboakley/sta…

11 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared This has to lead to a better name for the pigeonhole principle. But what...

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In reply to @christianp

I suppose I should also give the more positive experience that many colleagues have shown empathy with the situation the students are in, and gone to great lengths to allow extra time and used their discretion.
On those occasions I high-five the wall.

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Looking into arranging some accessibility testing. One company: the only way of initiating contact with them is by phone.

That's pretty inaccessible!

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In reply to @adil_3

@adil_3 I don't feel like I perceived each of the spans of time accurately - I'm not sure if I would have been able to say the houses bit was one third the length of the pastures bit without being told, for example.

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In reply to @Cyberplasm

@Cyberplasm @NclNumbas I assume that my empty inbox means it went OK?

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In reply to @HigherGeometer

@HigherGeometer How I imagine Lean feels

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In reply to @modeltheorist

@modeltheorist Yiiiiiiikes!
Sad time for both you and the snake

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson Eep!

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A good article on BBC news about dyspraxia bbc.co.uk/news/uk-englan…

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June

Today in dysautonomia: had to abort my shower because I couldn't stand up long enough

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In reply to @MarcusduSautoy

@MarcusduSautoy but marcus they're so annoying

1 favourite 0 retweets

In reply to @christianp

I tweet things like this because the ways in which I'm disabled are all pretty much invisible, and I think it's important to know that healthy-looking people live with these sorts of problems.

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In reply to @christianp

I usually include a medical name for the condition I think is most relevant because otherwise "I couldn't stand up long enough" might be interpreted as "I had a big sesh last night" or something else that I could mitigate.

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In reply to @christianp

But it's tricky, because I've been diagnosed with like a dozen things that overlap with each other in many ways, and nobody seems to understand what they really are, or what causes them.

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In reply to @christianp

So today is it dysautonomia, or dyspraxia, or Ehlers-Danlos?
I'm fairly sure it wasn't colourblindness, at least!
I don't really like having this long list of really rare things - it looks implausible. But they all overlap, so P(dysautonomia | dyspraxia) is pretty big, I think

4 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge Thanks! Glad it's not just me

4 favourites 0 retweets

In reply to @christianp

@icecolbeveridge ooh, the game is coming up to 3 million attempts!

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In reply to @christianp

Update: I mowed the lawn. My autonomic system is a land of contrasts 🤷

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In reply to @MrChapmanMaths

@MrChapmanMaths @icecolbeveridge Fab! If I was ofsted I'd rate you outstanding.
Yes, there's data: aperiodical.com/2016/05/are-yo…
57 is the second most common mistake, after 51

3 favourites 2 retweets

In reply to @GreyAlien

@GreyAlien I realised recently that I will be 80 in 2066, and I bet someone asks me what William the Conqueror was like

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Teachers don't want you to learn this trick!!!

To get 99% of something, first increase it by 10%, then decrease it by 10%.

It really works!!!!!

26 favourites 3 retweets

In reply to @helenarney

@helenarney @AffinityWater I'm so glad you've written a song about this! The struggle is real!

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In reply to @helenarney

@helenarney @AffinityWater The one time I dared ask if there's any way of working out, I got a torrent of answers that it's obvious.

Unfortunately for me, for some people it's obvious that size of button corresponds to size of deposit, while for others it's obviously frequency of use

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In reply to @helenarney

@helenarney @AffinityWater my mum has that one! If the tiny button worked, it would be strong evidence in favour of the frequency-of-use argument.

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Is 'ghost' @github's insensitive way of referring to a deactivated user, or is the person who assigned this issue really dead?

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In reply to @christianp

@github asking because I recently found out a cool person I'd had some work interactions with died suddenly a few months ago, and I don't want that to have happened again

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In reply to @helenarney

@helenarney @scottkeir @jjsanderson @AffinityWater @chellaquint this is how Demolition Man starts, isn't it?

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Asked to sign a petition asking the @UniofNewcastle to divest from companies involved in the arms trade, I start wondering about the massive statue of Lord Armstrong outside the Hancock museum

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This thread is incredible. Can't imagine any age when I would have had the patience to solve, or set, these puzzles twitter.com/HedgeProtestin…

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As part of running @NclNumbas at Newcastle, we get copies of students' accommodations, as agreed with the disability office.
So many of them just say "extra time in exams", when I'm sure the students would have much more specific ideas if asked directly twitter.com/sos_writing/st…

3 favourites 1 retweet

In reply to @christianp

@NclNumbas I don't think we have a bad disability office. But I do think we could be doing more to establish what would particularly help students for each assessment method.

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I've just merged branches from the past year's development work on @NclNumbas together.
Incredilbly, all the tests pass!

Going for a victory lap, Jonathan Edwards style

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In reply to @DeathCab4Callie

@DeathCab4Callie My experience as a disabled student was that most lecturers were happy to go along with what the disability office said, but a couple insisted it would compromise their teaching style. In effect this excluded me from their courses.

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In reply to @christianp

@DeathCab4Callie As a staff member, I advocate for students when I know what they need, but the information we get from the disability office is so minimal and written only with standard assessment methods in mind.

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In reply to @ColinTheMathmo

@ColinTheMathmo Is this why when I talk about maths, instead of "it's obvious that...", I say "because I'm a great and powerful wizard, I know that ..."?

4 favourites 1 retweet

In reply to @samholloway

@samholloway I'd say "my wife has sung there", but that doesn't narrow it down much

2 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA I hate this feature so much! You're bang on that it causes more problems than it solves

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @aperiodical First one

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In reply to @standupmaths

@standupmaths I assume you've already seen this playlist of covers played on calculators? youtube.com/playlist?list=…

1 favourite 0 retweets

Mundane tech tweet for anyone it might help:
I just updated my laptop to Ubuntu 21.04 and multitouch gestures stopped working. Apparently it's because it now uses Wayland, whatever that is.
I got them working again by installing this Gnome Shell extension: extensions.gnome.org/extension/1253…

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In reply to @jjsanderson

@jjsanderson It seems fine to me, except it seems to have decided that it can't do four finger gestures. I'm sure eventually that will annoy me enough to see if there's a config file I can change

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In reply to @msmathcomp

@msmathcomputer2 @Zoom No!!! That's very important information. Thank you

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"only 60 percent of the top 10"
There's another way of saying that

7 favourites 1 retweet

In reply to @pwr2dppl

@pwr2dppl Natural resonant frequency of deductions?

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In reply to @MathHistFacts

@MathHistFacts @aperiodical ahh yeesh, this is what I get for not checking references. It was Édouard Lucas!
At least this gives me a chance to fix the headline that doesn't work if you say Euler properly

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In reply to @northumbriana

@northumbriana Ethelbert must have been one bad dude to not get made a saint after eight in a row!

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I've spent another couple of hours playing with Lean, following @XenaProject's Formalising Mathematics course (github.com/ImperialColleg…)
I think the hardest part for me is remembering what each notation really represents, like ¬ P is really (P → false)

2 favourites 0 retweets

In reply to @alephJamesA

@alephJamesA @XenaProject I like it, but I have to remember it!

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Well remembered! Yes, too soon

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In reply to @jjaron

@jjaron that was exactly my attitude. A little bit risky, though!

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Charles Babbage fact: the What's the Difference Engine, designed during his blue period, accepts input represented by the positions of brass cogs.
On turning a crank, the machine emits a protracted sighing noise. There is no other output.

7 favourites 1 retweet

Is that a teeny tiny bit of eclipse?

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In reply to @christianp

One of the reasons I'm not a physicist: not motivated to go to any more effort to improve this, or even think about how it works. I'm satisfied there is in fact an eclipse happening.

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In reply to @mscroggs

@mscroggs Thank you for your service

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In reply to @JanvierUK

@JanvierUK Correct. Abort as soon as you can!

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This game about prime numbers with a suspiciously familiar mechanic is part of the indie bundle for Palestinian aid on itch: gocreatefun.itch.io/2-3-5-7

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Ooh, it's been a while since someone Doctored me. Another one in the file for my PhD-by-reputation submission.

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In reply to @peterrowlett

@peterrowlett I'll swap you

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This makes me wonder: has anyone ever tried setting up these fear-inducing diagrams in, like, a kids' soft play, to see if they work? twitter.com/CorgiHell/stat…

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In reply to @icecolbeveridge

@icecolbeveridge unique colours on football strips?

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl That's why I quit my PhD!

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I'm watching Twirlywoos and I recognised a location that was also used in Teletubbies and I don't need this information

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I've had a couple of days off work because I was BURNT. OUT.

For some reason, I've remade my old wordsearch generator in Elm, using @glitch. Once I worked out how to use elm reactor to show the nice compilation errors, it was a lovely experience!

wordsearch-generator.glitch.me

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.@ForumBooks our three-year-old has just asked, moments before falling asleep, "How did our Earth get made? Let's go to that new book shop and see if they have a book about it".
So, before we pop round tomorrow: do you? Thanks in advance!

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In reply to @ForumBooks

@ForumBooks Thanks!

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA It's foundational concepts all the way up

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In reply to @jjaron

@jjaron is this one of those vacuous truth situations? Does the Russian representative know that secure quantum communication is impossible?

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@chadtopaz so you're saying you drank bad coffee today?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @howie_hua Hi David and Howie! Is it OK with you both if I put a screenshot of these two tweets in a talk I'm doing tomorrow? Need to record it today, so if I don't hear back in the next couple of hours I won't use it. No problem if not.

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @howie_hua Yeah, I thought it was unlikely I'd get you both! Thanks anyway

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @howie_hua Well, I recorded it in one take, so that's a bonus. Will find out tomorrow what the reaction is. Thanks for asking!

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In reply to @christianp

@DavidKButlerUoA @howie_hua In case either of you want to see: my slides, including your tweets, are online at numbas.org.uk/talks/diagnost…. The video is at youtube.com/watch?v=lBgO-r….

1 favourite 0 retweets

In reply to @Coni777

@Coni777 @TryEraser That seems like an important omission!

0 favourites 0 retweets

In reply to @virtualcourtney

@virtualcourtney @divbyzero yeah, it has a real "black, asian, normal!" vibe

4 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK One of my colleagues habitually writes dates like "the 26'th of July". It drives me mad!

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𓁰

U+13070 EGYPTIAN HIEROGLYPH FIRST TIME DOING STANDUP COMEDY

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In reply to @jjsanderson

@jjsanderson Or, it's just started working

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I've made a game where you're shown a random unicode character and have to guess its name.

unicode-guessing-game.glitch.me

I used @elmlang on @glitch.

25 favourites 5 retweets

In reply to @cs_kaplan

@cs_kaplan @elmlang @glitch I don't think so. There isn't a direct method, and I'm wary of doing something like trying to display it and measure against something I know will be displayed as a box.
Weirdly, my android phone which should use Google's Noto font displays far fewer characters than my Ubuntu PC

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In reply to @christianp

@cs_kaplan @elmlang @glitch So I suppose its a team game, with you and your browser against the Unicode consortium

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In reply to @cs_kaplan

@cs_kaplan @elmlang @glitch Well, I reckon the GNU unifont (unifoundry.com/unifont/index.…) would do it, but I like seeing what characters I'm missing

0 favourites 0 retweets

In reply to @CardColm

@CardColm Aahhhh that's just reminded me I forgot to marinade my pork for tonight!

0 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK so how did it go?

0 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees I saw this and I thought of you: whatismote.com
Have you seen it before?

1 favourite 0 retweets

In reply to @cs_kaplan

@cs_kaplan @benjymous @elmlang @glitch The fact that they display on my PC suggests that I can put together a webfont to make them work for everyone.
But is this how I should use my time? 🤔

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In reply to @d_yellowlees

@d_yellowlees Not yet

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Sometimes I feel like the opposite of superman, an alien from a considerably more hospitable planet.

"You'll never defeat me, hEDS!"

(moments later)

"Earth gravity... one of my many weaknesses..."

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In reply to @alephJamesA

@alephJamesA Talk more slowly
(I am serious)

1 favourite 0 retweets

In reply to @DanielColquitt

@DanielColquitt how's your glibc?

1 favourite 0 retweets

So *that's* what the Yoneda lemma means! twitter.com/math3ma/status…

3 favourites 2 retweets

In reply to @peterrowlett

@peterrowlett Mr Lawson-Perfect would just like to say that he is *this* close to a month and a half of annual leave

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In reply to @peterrowlett

@peterrowlett 🤷

0 favourites 0 retweets

In reply to @sangwinc

@sangwinc ah rats, past CLP's plan to peer pressure me has succeeded!

3 favourites 0 retweets

In reply to @christianp

Well, I'm now the owner of whystartat.xyz.

9 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge this site has existed for twelve seconds and you claim there's a community?!

(Thanks for joining in! I will look now)

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Oh crikey, I've just noticed that I made this survey on mixed fractions five years ago and never looked at the results!
aperiodical.com/2016/09/do-you…
362 responses at the moment. I should do some analysis!

1 favourite 0 retweets

In reply to @sangwinc

@sangwinc aha! That's the entry from the Edinburgh Encyclopedia that I'd linked, but transcribed! Thanks!

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In reply to @mscroggs

@mscroggs I've done that. I can't see a page in the mediawiki docs explaining what each of the built-in extensions does, which I'm surprised by

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In reply to @dginev

@dginev that would be really helpful, thanks! Could you stick it in a new page on the wiki, and we'll draw from it?

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July

In reply to @icecolbeveridge

@icecolbeveridge Back of the class, Beveridge

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I defined a function called 'mm' in my bash session, and that seems to have been a bad move because now when I use the mousewheel it writes a load of junk instead of scrolling!

#TodayILearned, I suppose

1 favourite 0 retweets

In reply to @alisonkiddle

@alisonkiddle That puzzle that's often called "Einstein's puzzle", where you have to work out who lives where, given statements like "X lives next to Y"

5 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK I think this is a P(A|B) ≠ P(B|A) situation

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge we've been doing the countries in Africa each morning. Second-littlest L-P wakes up the people next door shouting "DJIBOUTIIII!!"

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I've spent the morning filling up whystartat.xyz

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In reply to @alisonkiddle

@alisonkiddle has anyone said Fibonacci numbers?

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths Yes please!

2 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths

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Never mind just reporting on a third derivative, this article is reporting on a derivative of a probability of a second derivative: bbc.co.uk/news/business-…

1 favourite 0 retweets

In reply to @christianp

Got to use the word 'radicand'. I'm definitely helping.

3 favourites 0 retweets

In reply to @SparksMaths

@SparksMaths Thanks!

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths I'm trying to decide on that myself at the moment

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In reply to @FeralMathPhysic

@FeralMathPhysic \( and \) for inline, \[ and \] for display mode

Thanks in advance for your contribution!

0 favourites 0 retweets

In reply to @wikiteq

@wikiteq @mscroggs Thanks!

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In reply to @pwr2dppl

@pwr2dppl @joshuagrochow @chadtopaz Have you seen the "I can name your polynomial" party trick? (pick the party carefully)
somethingorotherwhatever.com/name-your-poly…

2 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @pwr2dppl I'd like to repeat what David says, and also this has reminded me I'd been meaning to say to both of you: it boggles my mind how you can think hard about something and maintain the presence of mind to tweet about it

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In reply to @pwr2dppl

@pwr2dppl @DavidKButlerUoA Right, well, thinking at all then! I think my mind works differently to yours, and it's interesting to see, so thank you for sharing it

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Wanted: a compilation video showing what 1mm/h, 2mm/h, etc rain looks like.

9 favourites 2 retweets

In reply to @SeanMaths4EAL

@SeanMaths4EAL @ColinTheMathmo Yeah, it feels like there should be a different unit for measuring rainfall. This is like measuring fuel economy in m^2

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In reply to @CounterOfSheep

@CounterOfSheep I have the same thoughts. I'm _fairly_ happy with describing myself as disabled now, but whenever I think it might come up I have this long internal dialogue about how I'll explain myself.
Invisible disability is hard!

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In reply to @JanvierUK

@JanvierUK @RNJ3007 Cor!

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In reply to @KarenCampe

@KarenCampe @Mathgarden I have a paperback copy of that. It's so good!

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl This is going in whystartat.xyz

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I lasted two days before getting sidetracked into adding my "write maths, see maths" code to the mediawiki editor so I can see how my LaTeX will be rendered before pressing "Preview".

(I don't like pressing Preview)

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In reply to @pwr2dppl

@pwr2dppl Whaaaat, the art one too?! Rats

1 favourite 0 retweets

In reply to @mscroggs

@mscroggs nice example! whystartat.xyz/index.php?titl…

1 favourite 0 retweets

Mathematicians: variables are named using Latin, Greek, Fraktur, Hebrew and Linear B letters in bold, italic, script, sans-serif and serif forms.

Also mathematicians: I need some brackets. Guess I'll use good ol' parentheses again! 😎

whystartat.xyz/wiki/Parenthes…

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In reply to @Cshearer41

@Cshearer41 @KarenCampe @danicquinn Needs smiley faces

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In reply to @Cshearer41

@Cshearer41 @KarenCampe @danicquinn You're right, I should have done it like this

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In reply to @KarenCampe

@KarenCampe ah, great! Thanks!

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In reply to @Cshearer41

@Cshearer41 @KarenCampe @danicquinn Kinds of triangle: equilateral, scalene, just happy to be here

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In reply to @standupmaths

@standupmaths You're wrong, Matt, but the word that is tha maximum amount of fun to type is currently my password, so I won't be telling you what it is

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Here's a question: is it OK to omit parentheses around the argument to a non-standard function?

Like, "sin x = sin(x)" and "log z = log(z)" are common, but what about "f x = f(x)"?

Does the function name need to be more than one letter?

"flop x = flop(x)"

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In reply to @BernhardWerner

@BernhardWerner what do you mean by linear? I wouldn't say sin and log are linear.

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In reply to @BernhardWerner

@BernhardWerner Aha!

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In reply to @pwr2dppl

@pwr2dppl I can forward you some heated arguments for both sides of this question that I've received, if you want to lose the will to ever think about it again

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In reply to @GoranNewsum

@GoranNewsum Interesting! Can you remember which subjects?

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In reply to @dginev

@dginev That's excellent work, thanks!

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In reply to @christianp

@dginev How did you find these? Looking through a few of them, I haven't found one yet where f is a function, and "f x" can only mean "the application of the function f to x".

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In reply to @dginev

@dginev Ooh, that one looks good, thanks

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Why is there no mathematical italic small h in unicode? The rest of the alphabet is there! This is madness

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In reply to @christianp

@FakeUnicode what's the deal? There's a bold italic small h, and even a bold sans-serif italic small h, but no plain old italic small h!
There's a free codepoint for it between g and i, so WHAT'S THE UNICODE CONSORTIUM TRYING TO HIDE?

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In reply to @jontix

@jontix no, that's specifically sans-serif. There are implicitly serif 𝑔 and 𝑖 at U+1D454 and U+1D456, respectively

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In reply to @robinhouston

@robinhouston I spotted that, but it doesn't look the same as the other mathematical italics in my default font. So maybe that's a problem with my font.

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In reply to @christianp

@robinhouston I'm sure the unicode people have had this argument millions of times, but this feels to me like the problem with having a mix of characters named for their meaning and characters named for their appearance

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In reply to @robinhouston

@robinhouston Yeah. I expect a screen reader would read out "planck constant" though, which is no good if I mean something else

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In reply to @benorlin

@benorlin I like it. Nobody notices how quiet it is in the newsroom whenever there's an emergency

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In reply to @robinhouston

@robinhouston you're right: "Arimo" has ℎ but it uses "Latin Modern Math" for the rest of them, and forcing Latin Modern Math gets a matching ℎ

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In reply to @FakeUnicode

@FakeUnicode Thanks! Is there a list of codepoints that you'd expect to see, but exist somewhere else?

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@chadtopaz @pwr2dppl You're folding apples over there?

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In reply to @ch_nira

@ch_nira @royalsociety @IMAmaths @SophieBays @sambrownfox @YouthSTEMM @hanat_akordor NIRA THAT HOODIE!!!!! 🤩

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In reply to @icecolbeveridge

@icecolbeveridge Plot twist: you were holding the laser

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NHS email: "Most children around this age speak in sentences of 4-6 words"

My daughter: "as soon as I've sorted these eggs I'll come over and eat my breakfast"

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In reply to @benorlin

@benorlin A class of kids on a day trip wandering around aimlessly

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Thanks to everyone who's written something on WhyStartAt.xyz so far.

I'm gathering ideas and some questions about how the site should be organised, at whystartat.xyz/wiki/Whystarta…

Please add your opinions!

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In reply to @kyledevans

@kyledevans "I wept, for there were no more worlds to conquer"

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In reply to @sangwinc

@sangwinc It exists!

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In reply to @christianp

@sangwinc So no

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The wordpress editor on Firefox mobile is such a pain to use! Moving the cursor just doesn't work at all: it gets stuck at a certain point and no matter what I do, that's where typed letters end up

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If you've ever wanted to hear me sing an integer sequence, here's your chance twitter.com/aperiodical/st…

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In reply to @matthras

@matthras I've added this tweet as a reference at whystartat.xyz/wiki/!

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In reply to @christianp

@matthras hahah! Of course twitter didn't think the ! was part of the link!

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Two gardeners had a duel:
Trial by combat.
Each chose their favourite tool:
Combat by trowel.

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In reply to @jjsanderson

@jjsanderson I am not a number! My name is Iggle Piggle!

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@chadtopaz @virtualcourtney Antiderivative and antiintegral instead?

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In reply to @edsouthall

@edsouthall Scenes from twitter HQ:

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Preparing a presentation on decolonising the curriculum for tomorrow.

I'm... not speaking from experience, let's say that.

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In reply to @icecolbeveridge

@icecolbeveridge YES!

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In reply to @icecolbeveridge

@icecolbeveridge Maybe "The order of terms matters even when they commute"

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In reply to @icecolbeveridge

@icecolbeveridge Maybe it's an inconsistency? Or maybe we need a new category

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In reply to @icecolbeveridge

@icecolbeveridge What do you think about an "Unspoken conventions" category? I think that's interesting, and your page has made me think of "write terms in decreasing order of degree"

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In reply to @icecolbeveridge

@icecolbeveridge I just added that!

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Spent a moment making sure isthisprime.com/game/ works on tiny viewports. I got a decent score, too!

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There's no #BigMathOff this year, but if you're not like me and have time to do fun maths, here's something similar from @3blue1brown twitter.com/3blue1brown/st…

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The "is this prime?" game (isthisprime.com/game/) recently passed 3 million attempts, which I might not have noticed if @sioroberts hadn't written this lovely article about it: technologyreview.com/2021/07/18/102…
I like how they embedded the game in the post!

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@chadtopaz Could you do an online talk in UK time? To be in core hours for us it would have to be mid-morning for you at the latest, if I've got your time zone right

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@chadtopaz Cool! I might send you an email soon

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In reply to @KJMDPhD

@KJMDPhD What did you do to get this?

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Staring at my mp3 library and wondering who tagged Ray Barretto as "reggae".

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In reply to @edsouthall

@edsouthall I like this

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In reply to @christianp

@edsouthall These shapes all have the same area. Any surprises?

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In reply to @danicquinn

@danicquinn @edsouthall Like this? While doing this I double-checked the area of the ring, and I think I'd missed a factor of pi! Oops

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In reply to @JusSumChick

@JusSumChick @danicquinn @edsouthall yeah, I had that thought after I'd made the image!
Here's the same shapes in black and white

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In reply to @Smylers2

@Smylers2 @icecolbeveridge I thought it might be this (bought in Barter Books!) but now it's off the shelf I can see it doesn't match your description. It's a very good book anyway

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In reply to @Smylers2

@Smylers2 @icecolbeveridge I don't think this one has anything on voting

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In reply to @laryrober

@laryrober @edsouthall Every shape has area 1. The rectangle has sides 3 and 1/3. The ring has outer radius sqrt(9/pi) and inner radius sqrt(8/pi)

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I've just seen an advert containing the phrase "Black Friday in July".
Nothing makes sense.

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Dr.-ed again, this time by a colleague rejecting an internal funding application, who should really know better.

So I'm really getting the full academic experience, without a tiresome PhD!

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Get in and follow Kyle before he hits the big time. He has a new book which I haven't read but am sure will contain both maths and jokes. twitter.com/kyledevans/sta…

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Clearing my sinuses out after a really heavy cold

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In reply to @CounterOfSheep

@CounterOfSheep I know that feeling!

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In reply to @dginev

@dginev That's a lovely example, thanks!

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In reply to @christianp

@dginev I wonder what other examples there are of different operations with the same type that you could do this with

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In reply to @pwr2dppl

@pwr2dppl I also hate when people do this! The worst thing is both sides come out of it frustrated that the other one didn't follow The Normal Person Rules.
I suppose there isn't enough money in low-stakes encounter mediation to make that a thing

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In reply to @pwr2dppl

@pwr2dppl Yeah, I'm totally with you

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In reply to @JM_Field5

@JM_Field5 Evidence from here on plague Island is that even that isn't enough to change some people's minds

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In reply to @honeypisquared

@honeypisquared 1. On a humidity sensor
2. "100% fruit juice"
3. In a basic numeracy e-learning course, showing percent completion 🤨

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In reply to @PaulsPrattle

@PaulsPrattle I think there could be some interesting things to say about "proof", but I'm not sure about the others. There are different standards of proof, or even conceptions of what a proof fundamentally is, that would be worth describing.

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In reply to @christianp

@PaulsPrattle I'm not keen on compiling a list of words that mathematicians use differently to colloquial usage

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In reply to @panlepan

@panlepan Hah! Yes!

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In reply to @TedG

@TedG Related : twitter.com/christianp/sta…

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In reply to @standupmaths

@standupmaths @WillZMarler @helenarney After that showbiz intro I reckon zero is a shoo-in for Best Digit in a Leading Role

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @stecks @lunasorcery ha! Love it

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In reply to @Andrew_Taylor

@Andrew_Taylor @standupmaths @stecks @lunasorcery I looked at your code and thought it looked a lot shorter than I remembered!

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WANTED: examples of symbols that you have to write carefully, so they won't be mistaken for something else.
I realised I had to drastically change my handwriting after I started my maths degree.
Thanks to @panlepan for getting this page started: whystartat.xyz/wiki/Easily_co…

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In reply to @Ayliean

@Ayliean @panlepan do you write 5 as a single stroke, or do the top line as a separate final stroke?

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In reply to @Ayliean

@Ayliean @panlepan That reminds me of the time we had a 'neat handwriting' exercise at school, and I spent like an hour on a single page. It was beautiful.
My teacher said "so you can write! Do that all the time"
Yes, if you don't mind me never getting past question 1...

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In reply to @christianp

What really gets my goat is that 6 and 9 are the same thing rotated. You could make up literally any squiggles you like for the most used symbols in human history, and you decided to reuse one?!?!

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In reply to @htfb

@htfb @panlepan Yes, some font designer has made things even worse

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In reply to @icecolbeveridge

@icecolbeveridge It's place value, not place and orientation value

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In reply to @suedepom

@suedepom @soupie66 @panlepan coincidentally, a couple of days ago I read this @inferencereview article about the hunt for an ancient temple that looked in the wrong place for 200 years because a scribe mistook ζ for ξ: inference-review.com/article/the-fo…

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In reply to @dginev

@dginev @panlepan Another serendipitous tweet: twitter.com/Flynn_DP/statu…

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In reply to @GoranNewsum

@GoranNewsum @panlepan Like this?

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In reply to @InertialObservr

@InertialObservr @panlepan Ah yes, zetatatatatatata

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In reply to @GoranNewsum

@GoranNewsum @panlepan Thanks!

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In reply to @kyledevans

@kyledevans Yikes! Of all the days to make that joke

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August

In reply to @neheritagelib

@neheritagelib Obviously the strawberry has an ancient right of panorama over the Sky call centre

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In reply to @sainsburys

@sainsburys suppose that the changes to my online grocery order weren't saved because the page got stuck on 'processing payment' all night. Is there any way of retrieving the things I'd added, to make a new order?

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In reply to @beefok

@beefok @next_pcb Cor, that looks fun!

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In reply to @TedG

@TedG @maanow Are there slides or a recording available?

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In reply to @algorithmachine

@algorithmachine @elizabethmunch Would @cocalc_com count?

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In reply to @hollykrieger

@hollykrieger I've had exactly this experience before! For me, I've found a good integer sequence works. I wrote this recently: aperiodical.com/2021/07/a-lull…

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In reply to @mathhombre

@mathhombre @SheckyR Is that the right link?

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In reply to @pwr2dppl

@pwr2dppl Weirdly, we covered this in my fairly conservative English private school when I was 16.
I think my history teacher might have been trying to take the system down from the inside

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In reply to @icecolbeveridge

@icecolbeveridge 101101101101101?

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In reply to @icecolbeveridge

@icecolbeveridge Reading across the top row. Do all the rows have a repeating pattern?

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In reply to @christianp

@icecolbeveridge Oh wait, is it a spacefilling curve?

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In reply to @mscroggs

@mscroggs re whystartat.xyz/wiki/Superscri… - all in favour of changing the way mediawiki renders footnotes in order to enhance the ambiguity?

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Including my unicode guessing game twitter.com/glitch/status/…

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In reply to @christianp

I really appreciate how @glitch does these posts. I never sent a picture in to Art Attack, so this is the next best thing

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What's the deal with these hexagonal plots of land in Al Kufrah, Libya?
maps.app.goo.gl/zpqSddk613cKQz…

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In reply to @icecolbeveridge

@icecolbeveridge Ahh I'd hoped the oembed would have included a picture. Thanks!

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Is there a name for units of measurement that you can't reasonably add or subtract?
Examples: temperatures in Celsius; UK shoe sizes (a size 9 shoe is not as long as a size 4 and a size 5 shoe laid end to end)

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In reply to @BlindMath

@BlindMath Hmmm, I think that might be too strong - without context, is interpret that as meaning two measurements can't be compared

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In reply to @lopeetall

@joshbfitzgerald Shoe sizes are linear - the length of a shoe is (12 inches - size×barleycorns)

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In reply to @sarahlovesmaths

@sarahlovesmaths Good suggestion! I can't prove it but I just had exactly the same thought while putting the baby to bed

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In reply to @BlindMath

@BlindMath @joshbfitzgerald Ah! I guessed that there's a different definition of 'nonlinear' to my fuzzy understanding

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In reply to @johnharvey_math

@johnharvey_math I wasn't sure about what degrees Kelvin represent. Does something at 200K have as much energy as two things at 100K?

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In reply to @johnharvey_math

@johnharvey_math Yes, that sounds right to me. Always worth hedging your bets on twitter though!

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In reply to @christianp

@johnharvey_math Oh, but maybe something at 200K gives off as much energy as two 100K things next to each other? Is that how temperature is defined?

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In reply to @johnharvey_math

@johnharvey_math @langtoneagle Shoe sizes also have both of these properties

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In reply to @shin_dmitry

@shin_dmitry Nice, thanks!

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In reply to @apgox

@apgox @johnharvey_math @langtoneagle @johncarlosbaez Thanks! That's a useful word to know

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In reply to @ZenoRogue

@ZenoRogue I don't include the Mohs scale

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In reply to @matthras

@matthras The Greek mathematicians I work with do it the same as everyone else

(but like to grumble about how what we write isn't real Greek)

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In reply to @jjsanderson

@jjsanderson 💩 + 💩

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In reply to @suedepom

@suedepom At least the bust measurement is nominally a straightforward length.

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In reply to @christianp

@suedepom Chest measurement? Fill in whichever is the number

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In reply to @suedepom

@suedepom Aha

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In reply to @JM_Field5

@JM_Field5 Yesterday at the play farm I saw a sign that began "Budgies were discovered in 1805..."
I was like, pretty sure my daughter discovered them just now

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In reply to @JM_Field5

@JM_Field5 What a coincidence!

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In reply to @christianp

@JM_Field5 I'll stop now, even sarcastic colonialism doesn't feel great

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The question occurred to me last night whether 'odd' meant 'not a multiple of 2' before it meant 'unusual', or the other way round.
Turns out it was the mathematical meaning first, according to etymonline.com/word/odd#etymo…

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Parenting hack: use a spreadsheet to keep track of your children's needs.

Proud to announce the birth of my 27th son, Aaron. All his siblings, from Aron to Zron, are delighted.

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In reply to @stecks

@stecks My middle name is from my grandfather, empty word Perfect

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My employer's bold offer to encourage me to come back into the office, despite the high covid numbers: a free coffee during 'Re-connecting week'.

A cup of coffee is famously shorthand for "an almost negligible price", which seems quite low for perpetuating the pandemic

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The Newtonians had it right: by developing a completely insular mathematics, none of our students will be able to get answers to exam questions from chegg

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In reply to @Mathgarden

@Mathgarden Or, the stories that last longest are the most dramatic ones

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In reply to @icecolbeveridge

@icecolbeveridge You can always try, but I don't think your version is notably different to the one that's there. The OEIS isn't great for searching for formulas, so I don't think there's much benefit in having both forms

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In reply to @robinhouston

@robinhouston @johncarlosbaez @apgox @tim_hosgood What I want to know is why American English dropped the o in moustache

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Reading an old Delia Smith book. It's really of its time!
I was prepared for "really garlicky chilli pasta" to only use 4 cloves of garlic, but "4 pieces jalapeño pepper"?!?!

"Serves 2"?!?!?!?!

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In reply to @jjsanderson

@jjsanderson It said "from a jar", so I suppose ready-sliced jalapeños

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Two hours into subtitling a 30-minute video. YouTube Studio and gnome-subtitles have between them crashed half a dozen times. I give up!

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In reply to @JimPropp

@JimPropp Yes, that's what I was trying to do. For some reason YouTube studio kept getting stuck at one frame and wouldn't seek backwards or forwards. Only reloading the page fixed it

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In reply to @JanDoesMath

@JanDoesMath @fermatslibrary It's even in the OEIS! oeis.org/A174115

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A tiny open source contribution: in this tool to initialise a CITATION.cff file, I added help text and links to the spec for each field: citation-file-format.github.io/cff-initialize…

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Now when I come downstairs with the baby in the morning I have to turn a light on. Not happy.
Summer in Newcastle: blink and you miss it

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In reply to @suedepom

@suedepom With no plans to visit the south any time soon, that is very little consolation

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Is there a name for the way you order titles of things like books, where you ignore words like "The" at the start?
e.g. "Anteater, The; Bees Are Great" instead of "Bees Are Great; The Anteater".

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It's weird being asked to make a certificate of participation for someone who gave a talk at a conference.
Like, their employer won't accept seeing a recording of them giving the talk on the conference website, but will accept a PDF I knocked up in a few minutes?
Bureaucracy!

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In reply to @christianp

A strong part of me wanted to make something really snotty, to show my objection, but this is someone's job so instead I have to work out how fancy it needs to look in order to appease whoever has to approve it

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In reply to @njj4

@njj4 indeed. Someone last year asked for the certificate to be stamped and signed by university officials.
I was like, 1) I wouldn't know where to begin with that, even if 2) there's a pandemic on and I haven't physically seen a colleague in months

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In reply to @ascii_only

@ascii_only thanks! From that page, it doesn't seem there's a specific name for the convention of ignoring common words from the start

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In reply to @stecks

@stecks @MiniGirlGeek

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In reply to @virgil_pierce

@virgil_pierce Yeah, I'd like to make these as a matter of course for people who need them, but I have no idea what the requirements are

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths @IndependentSage Thanks for all you did, Kit. You've got your priorities right!

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If marching about demanding socialism was currently a thing, this would be on many placards twitter.com/ChristianSpenc…

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In reply to @Tom_Ruen

@Tom_Ruen @panlepan @akivaw @standupmaths or, a colourblind person's perspective: don't use colours at all

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Looking at Canvas's (old) quiz engine.
For a numerical question, you can set an "answer with precision": you give a decimal answer, and an integer precision.
It looks like "precision" means "significant figures", since 12.345 gets rounded down to 12.34.
But...

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In reply to @christianp

The marking is also confusing. "12.34" is marked correct, as I expected, but so is "12.340", which doesn't represent the same precision.
While the QTI export's marking condition just says 12.335 < answer <= 12.345, that's not how Canvas marks it: "12.33888" is marked incorrect.

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In reply to @christianp

Nobody told the person who made the front-end, because when I write 12.345 in the box it's immediately replaced by 12.3400, implying "precision" means "decimal places".

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In reply to @christianp

This stuff isn't simple: @NclNumbas has a tonne of options for how to mark a single number (docs.numbas.org.uk/en/latest/ques…)
It feels like Canvas makes every mistake it can, resulting in contradicting at least one assumption anyone might make

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In reply to @panlepan

@panlepan @Tom_Ruen @akivaw @standupmaths I don't know why I'm wasting my time doing this, but I thought alternating solid and outline would be clearer

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*clicking the "regenerate values" button until I get the ones I want*

"hmm, there are 100 combinations, I'd have to be very lucky to get the one I want"

*three clicks later*

"Oh!"

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In reply to @monsoon0

@monsoon0 I think I could muster up 770 papers with different opinions about whether Thompson's group F is amenable...

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Does anyone disagree that the cube is the least prismy prism?

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In reply to @ZenoRogue

@ZenoRogue That's fair, but when I look at a cube I just don't think 'prism'

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Every topologist: paaaaaiiirs of paaaaaants! twitter.com/biettetimmons/…

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In reply to @mrallanmaths

@mrallanmaths I think they are the most prismy prisms

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What's my pattern?

1,2,3,6,4,5,12,10,8,7,...

(not a #LullabySequence, or at least I haven't done the maths to make it easy to chant without stopping to think yet)

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In reply to @Alan_Taylor_314

@Alan_Taylor_314 I can give you as many as you like. Here are the next few:

20,18,16,14,9,...

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In reply to @Alan_Taylor_314

@Alan_Taylor_314 I love that you can't see it! I think you must have made an assumption about what kind of pattern it is.
The next number is 30.

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In reply to @drvinceknight

@drvinceknight I'd replace the . with [^\$] so that it works on lines with more than one pair of dollars

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In reply to @drvinceknight

@drvinceknight and while doing this properly, you might as well deal with escaped dollars:

:%s/\\\@<!\$\(\([^\$]\|\\\$\)*\)\\\@<!\$/\\(\1\\)/g

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In reply to @blatherwick_sam

@blatherwick_sam Not the way I'm thinking of it

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Any takers for this? twitter.com/christianp/sta…

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In reply to @sarahlovesmaths

@sarahlovesmaths Yes!

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In reply to @honeypisquared

@honeypisquared I don't drink, so my guesses in increasing order of likeliness of "is there really a gin with this name":

Gintegral. g∈. Gindivisible. 90% proof by ginduction.

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Hmm.. isthisplanar.com doesn't exist yet

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In reply to @christianp

'Give the virus a head start week' update: they've added biscuits to the offer.

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In reply to @standupmaths

@standupmaths @helenarney @joshuagates You missed a golden opportunity to show a title card reading "RDER SHE WRO" there.

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Calculating this banana's radius of curvature. #TMIPBreaks

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In reply to @christianp

For the 99% of people following who aren't at #TMiP2021: I'm attending the Talking Maths in Public conference, and we've been asked to tweet what we're doing to relax in the breaks.
I won't be doing this every time, because sheesh I'll want to relax!

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In reply to @honeypisquared

@honeypisquared Pick three points on the banana; draw normals from there, and if the curvature is constant (or you fudge it for the purposes of a tweet) they'll meet at one point. The radius of curvature is the distance from that point to the banana

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In reply to @peterrowlett

@peterrowlett @Joel_Feinstein 0∈ℤ⁺ would make sense in France, where zero is both positive and negative, so would be worth using if you consider ℕ to start at 1.

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In reply to @peterrowlett

@peterrowlett @Joel_Feinstein ooh, I've just spotted something that might be good for the wiki: I'd write ℤ₊, not ℤ⁺. @Joel_Feinstein, would you normally use a superscript, or did you just find the wrong unicode character?

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Just saw an advert for the burger place in the Grainger Market and now I really really want to go into town and catch coronavirus

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In reply to @Joel_Feinstein

@Joel_Feinstein @KarenCampe @peterrowlett I always go with subscript >0

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In reply to @bahran_cihan

@bahran_cihan @pwr2dppl Don't count on these being removable. I had a few when I was renting, and they ripped a fair bit of paint off.

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In reply to @Alan_Taylor_314

@Alan_Taylor_314 Want another hint? Or just the answer?

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In reply to @divbyzero

@divbyzero Have you seen this by Danny Calegari? lamington.wordpress.com/2011/12/02/lay…

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In reply to @becky_k_warren

@becky_k_warren have you seen this? twitter.com/CuttleXYZ/stat…

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Coming soon: a million "introduction to dynamical systems" worksheets in desmos twitter.com/Desmos/status/…

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As a fan of maths facts, I'm very pleased to see that Tanya Khovanova has been adding to her great site numbergossip.com

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I'm playing with @CuttleXYZ , trying to make some @becky_k_warren style swirly knots

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In reply to @matthen2

@matthen2 It looks like you've got the same pen plotter I have! Was it hard for you to set up, or was I just particularly inept?

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In reply to @matthen2

@matthen2 Yes, that's what I've got! Did you find the Australian guy on YouTube who explains how the delivered kit differs from the instructions?
I also have some python code to send gcode

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In reply to @pwr2dppl

@pwr2dppl There's a lot of unexplained magic in first calculus courses and I agree that this is one of the worst parts. Although, for students learning at the pattern-matching level, it's not much different to the chain/quotient/product rules

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Hey @Samuel_Hansen, what can you tell me about taxonomies of mathematics? Anything? Specifically, I'm interested in taxonomies of mathematical topics as they're taught, from secondary to undergraduate level.
This is an open question to anyone else who can offer expertise

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In reply to @honeypisquared

@honeypisquared @Samuel_Hansen I have a dim memory that I've talked with you about this in the past. This is for @NclNumbas: we have a large library of maths questions, and want to organise them. At the moment we use the mathcentre taxonomy, which has big gaps and is weirdly specific in other places.

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In reply to @christianp

@honeypisquared @Samuel_Hansen @NclNumbas Questions I want to answer:
* Hierarchical, or something more complex?
* Just objects, e.g. 'quadratic equations', or just tasks, e.g. 'factorise a quadratic', or a mix of both? (mathcentre is a mix, but heavily objects)
* How to relate to standards such as GCSE and Common Core

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In reply to @honeypisquared

@honeypisquared @Samuel_Hansen @NclNumbas @CambridgeMaths can I see that?

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In reply to @christianp

@honeypisquared @Samuel_Hansen @NclNumbas @CambridgeMaths but you're focused on primary and secondary, right?

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In reply to @honeypisquared

@honeypisquared @Samuel_Hansen @NclNumbas @CambridgeMaths are you free either today before 3pm, or Wednesday or Thursday morning?

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In reply to @Samuel_Hansen

@Samuel_Hansen @honeypisquared @NclNumbas @CambridgeMaths thanks!

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In reply to @k_houston_math

@k_houston_math Visiting @scienceatlife?

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In reply to @elinoroberts

@elinoroberts I'm currently 3/3.

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September

In reply to @honeypisquared

@honeypisquared at #TMiP2019 @ZoeLGriffiths had the idea for a show where you talk about maths in the kitchen, so I suppose I can offer talking about maths in the... loft?

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I remember in 2010, thinking "how will I put up with five years of this lot?"

Happier times.

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In reply to @pwr2dppl

@pwr2dppl Unless it came from the Équation region of France, it's just a sparkling relation.

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In reply to @christianp

@pwr2dppl Seriously, my gut feeling is that for many people's definitions of 'equation', whether this is one depends on where x and y came from

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A notation question: how often do you use square brackets for grouping, with exactly the same meaning as parentheses?

Do you use them differently in handwritten vs typeset notation?

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In reply to @icecolbeveridge

@icecolbeveridge because it's hard to reliably draw parentheses of different sizes?

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In reply to @wspr

@wspr That would certainly get round the problem of "is this function application or implicit multiplication?" (whystartat.xyz/wiki/Juxtaposi…) but it's the opposite of what Mathematica does. I'd go with your way round if I had to choose, though

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There's lots of mockery of this error (possibly made in bad faith) but I can see how, knowing nothing, you could interpret it to mean "47% of adults are less likely".
The way English handles percentages isn't exactly rigorous. twitter.com/soapachu/statu…

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In reply to @icecolbeveridge

@icecolbeveridge Absolutely

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In reply to @christianp

@icecolbeveridge "the dude from Right Said Fred is overconfident" isn't exactly news, like

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In reply to @RichardElwes

@RichardElwes It's hard to know where the balance is. Everyone's suddenly aware of the downsides of open-book assessment, but timed, invigilated exams also have well-documented problems with fairness and reliability.

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In reply to @RichardElwes

@RichardElwes OK, I had "at-home, open-book" but removed "at-home". I suppose the statement is good in that it doesn't knee-jerk say that at-home assessment shouldn't happen at all, which I've seen some institutions say.

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Is your point that people don't engage with your feelings about it, or that saying "that's easy" and referring to something you haven't heard of makes you feel worse?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Thanks! I saw a lot of people responding to the funny words, and wanted some discussion of your actual point.

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Short form horror from the 4-year-old, while playing:

"When a husband and wife got back to their flat, another little girl was standing there!"

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen @honeypisquared @NclNumbas @CambridgeMaths Can't you remember the trouble I caused last time I wrote a paper for Connections?

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In reply to @MiniGirlGeek

@MiniGirlGeek I was in a similar position when I graduated (I'm autistic and dyspraxic, are my main employability issues)
I got a job in my uni's maths support centre, by asking if there was any hourly work in the department I could do. I was lucky to be able to take my time finding something

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In reply to @christianp

@MiniGirlGeek I've always been up front with my disabilities and asking for accommodations, but I've only ever worked at this university, which is good about that sort of thing

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In reply to @peterrowlett

@peterrowlett @Samuel_Hansen @honeypisquared @NclNumbas @CambridgeMaths I was very unhappy about having to make a word document. Maybe I kept that go myself!

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In reply to @icecolbeveridge

@icecolbeveridge @kyledevans @AllenAndUnwin @AtlanticBooks the trick doesn't work otherwise

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In reply to @aperfect

@aperfect *makes note in presents list*

"Adam: hot pink camera lens"

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I've been playing with @CuttleXYZ a bit more. Here I made a nice tiling using the Rotation Tiling and Tiling Grid modifiers, then I wrote a custom modifier to fade out the colours on the outer pieces.
Here's a link: cuttle.xyz/@christianlp/T…

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In reply to @christianp

@CuttleXYZ Following feedback from my wife, whom I married for her colour vision, here's a less eye-searing version

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I'm using my plotter for the first time in a while. I like this pattern!

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In reply to @Awantik73363734

@Awantik73363734 Everything has to be in vectors, but you can use interesting pens to draw with, and draw on stuff that wouldn't go through a printer

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In reply to @christianp

Here's the finished thing.

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In reply to @alisonstenning

@alisonstenning @TWhitleyBay1 I can remember seeing north shields from the top of Penshaw monument, but now I live up here I'd never thought to look the other way!

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A musician can chart. An athlete can medal.
In what other realms of life can I noun?

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In reply to @ZoeLGriffiths

@ZoeLGriffiths Yes! Very good!

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In reply to @christianp

@ZoeLGriffiths Although is 'parent' technically a gerund?

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In reply to @Smylers2

@Smylers2 @ZoeLGriffiths Yes, and I thought 'parent' was a French or Latin gerund

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In reply to @GoranNewsum

@GoranNewsum It's common in Olympic coverage now.
E.g. this from teamgb.com/article/four-m…
"He’s medalled at the Commonwealth Games for Team England, as well as being a two-time European medallist."

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In reply to @GoranNewsum

@GoranNewsum I think that's already taken by these lads

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My employer's health and safety advice: take a break for 5-10 minutes out of every hour!

Also my employer: the legally mandated 20 minute lunch break is taken out of your pay

(I don't think this is at all unique to my employer)

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In reply to @christianp

Also a good idea: the text in your display screen equipment health and safety guidelines doesn't meet even the minimum WCAG threshold for contrast 👍

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In reply to @christianp

Communicating important but complicated and dull stuff to thousands of people is hard.
I wish there was a well-supported mechanism for giving feedback to improve this kind of text that didn't involve me starting emails "hi, I'm autistic and more pedantic than you'd believe"

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In reply to @eqdynamics

@eqdynamics thank you for that encouragement

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In reply to @overleaf

@overleaf is it possible to select a portion of text and see where in the document's history it was added?

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In reply to @revdancatt

@revdancatt lovely picture!

What's the glass doing on top of the pen? Is it just weight to push the pen down?

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In reply to @zjorge

@zjorge @revdancatt I have a C battery taped to my pen holder. Less fancy!

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In reply to @neheritagelib

@neheritagelib I'm desperate to see inside!

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In reply to @LearningMaths

@LearningMaths @alisonkiddle @helenjwc @MathsImpact I'd say something like "I'm interested in your interpretation of this question:" would make it clear there's an ambiguity, without revealing what it is

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Type the following string of three characters:

Q`!

I had to have four goes at it. How about you? It's something I don't think I have any muscle memory for.

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In reply to @christianp

(on a physical keyboard)

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I appreciate that being able to search tweets at all relies on a mind-blowing amount of clever code, but it surprised me just now that searching for "from:christianp shoe size" turned up nothing, but "from:christianp shoe sizes" gets the entire thread I was looking for.

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Oh no, a colleague has asked about tensors.

*frantically reads through the last month of @pwr2dppl's tweets*

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In reply to @JanDoesMath

@JanDoesMath I have, for no good reason, made it more complicated

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Some more playing with @CuttleXYZ. I've written a modifier to weave two paths together.

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I think I'm in the categorical dual of a zoom meeting: someone just said "this is not so much a comment as a question"!!

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A notation question:
The polar form of a complex number is r⋅exp(i⋅θ).

Which, if any, of these are in polar form?

A) 5⋅exp(2i)
B) 2⋅exp(i⋅π)
C) (4+√2)⋅exp(i)
D) exp((4+√2)⋅i)
E) exp(0i)
F) exp(0)
G) 1

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In reply to @RichardElwes

@RichardElwes Even G?

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In reply to @htfb

@htfb @RichardElwes the \cdots are just to give a little bit of space, really! Mathematical notation in plain text is hard

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In reply to @htfb

@htfb @RichardElwes would you really distinguish between E and F?

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In reply to @htfb

@htfb @RichardElwes interesting - so you distinguish between the real zero and the imaginary zero?

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In reply to @sangwinc

@sangwinc ah yes, I meant to!

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In reply to @RichardElwes

@RichardElwes I suppose my perspective is that the point of saying something is in 'polar form' is that you can read off the magnitude and argument.
'1' is equivalent by algebraic shuffling to '1⋅exp(0i)', but you have to know some facts about 1 to know what the argument is.

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In reply to @tausbn

@tausbn @CuttleXYZ Yeah, I spotted that but decided I'd keep quiet about it!

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In reply to @dginev

@dginev even G?

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In reply to @gregeganSF

@gregeganSF LA and Houston are pretty spread out. Looking at google maps, I can get distances between 2160km and 2278km by picking different points on the city limits. So Mathematica is still probably wrong, but maybe not as wrong as you'd think

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In reply to @gregeganSF

@gregeganSF is that calculation in one of your screenshots?

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In reply to @jjaron

@jjaron You need to start the supply chains newsletter. If not you, who?

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In reply to @peterrowlett

@peterrowlett that desk is giving me palpitations!

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In reply to @dginev

@dginev yes, I think that the relation between notation and quantities with types is something that most mathematicians don't really think about, but becomes a big problem when computers get involved

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In reply to @christianp

@dginev in this instance, I'm specifically interested in the notation

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At the end of a French video: "Likez, Commentez, Partagez".

You cowards! Have the courage to say "Sharez"

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In reply to @peterrowlett

@peterrowlett phewww

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In reply to @peterrowlett

@peterrowlett I definitely belong to the "occasional clean sweep" school of tidying

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Making this document look more like serious academic writing by switching from sans-serif to serif.

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In reply to @LizahvdAart

@LizahvdAart have you seen that study where they ask people to draw a bike, without a reference? There doesn't seem to be a single human who can do it

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In reply to @honeypisquared

@honeypisquared I think the only programming education person I follow is @ShriramKMurthi

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths not a great day to use that exact phrase

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Today I've been using @CuttleXYZ to draw a palace. My plan is to use the pen plotter to draw this on cardboard, for little L-Ps to play with.
Architects don't @ me.
cuttle.xyz/@christianlp/P…

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I've just realised I can mute the abbreviation 'NFT' and never have to engage with that nonsense.

Interested to see if I see this tweet again, though!

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In my continuing quest to boil the concept of a 'game' down to its minimum, I've made the "is this prime" game easier and much much harder

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In reply to @christianp

Video description: starting with a screen titled "Is this a quiz?", a series of questions: Is 7 a number? Is 0 a number? Is 9 a number? Is 3 even? Is 6 even? Then "Game over", and I let out a deep sigh.

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In reply to @modeltheorist

@modeltheorist I don't, and I spent a long time looking for any last year

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In reply to @christianp

@modeltheorist although @pkrautz might know of some that aren't completely terrible

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In reply to @sigfpe

@sigfpe I don't think I agree with this. There can absolutely still be gatekeeping even if the person being kept out has a good understanding of the topic they're being kept out of.

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In reply to @Desmos

@Desmos is desmos.com/accessibility the same page that used to be at learn.desmos.com/accessibility ?

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In reply to @sigfpe

@sigfpe I suppose it depends on whether the question is "Can I learn this?" or "Can I talk with someone else about this?" For the latter, you can gatekeep by rejecting someone if they learnt the thing from blog posts or whatever.

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Me, every few months: I should make the @NclNumbas look more like these cool edtech things I keep seeing!

Moments later: oh, they're terrible for accessibility

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In reply to @aperfect

@aperfect what did you think caused CSS resources to be loaded, or had you just never thought about it?

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In reply to @aperfect

@aperfect yeah, it definitely doesn't happen when the CSS is read, because then you wouldn't need to think about pre-loading
(and you'd need to have the stuff to handle resources references in an element's style attribute anyway)

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In reply to @aperfect

@aperfect while we're talking about frontend matters: I just decided to look at a domain I used to own, takenot.es. The right-pointing arrow is implemented as a ligature of the text 'arrow_forward' a custom font!!
While my unicode → character gently weeps

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Gang, I think I'm going to start putting a little bit of space between things that are multiplied together

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In reply to @sangwinc

@sangwinc let's not get ahead of ourselves!

I've been thinking about how sensitive we are to spacing as providing semantic information. I expected adding a bit of space to look completely wrong, but it was the opposite!

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In reply to @sangwinc

@sangwinc ta!

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In reply to @MathsTechnology

@MathsTechnology @geogebra interesting! Do you know if it's always done that?

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In reply to @MathsTechnology

@MathsTechnology @geogebra aha! Numbas does the same, but students continually get tripped up by it. I suppose the immediate feedback of the geometry bit not looking right is more noticeable than just the rendering of the notation

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In reply to @RyanTinsleyPhys

@RyanTinsleyPhys No?

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In reply to @apgox

@apgox @MathsTechnology @geogebra I think Mathematica is forced to do this because it doesn't do as much with spacing in its rendering as TeX does.
Now I wonder if Knuth has written anything on the subject

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Each day of the DMV-ÖMG conference has activities from 09.00 until 18.30! Is that normal??

staff.fim.uni-passau.de/~zumbraegel/dm…

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In Python, you can filter a list comprehension by adding an if statement to the end, e.g.:

[x for x in list if x<y]

I wish you could do the same in a for loop, e.g.:

for x in list if x<y:
...print(x)

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In reply to @pippinsboss

@pippinsboss @Mathematical_A Nice!

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In reply to @Mathematical_A

@Mathematical_A your website is down: I get "The service is unavailable" when I try to load m-a.org.uk, or any page under it.

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In reply to @dginev

@dginev yes!

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In reply to @bbarber_

@bbarber_ I don't like the two instances of 'for', and there's a reason comprehensions replaced filter and map

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In reply to @MathsImpact

@MathsImpact I've actually had people tell me quite firmly that • shouldn't be used for scalar multiplication at certain levels in order to avoid confusing students when they see vector dot product
(I disagree)

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In reply to @JM_Field5

@JM_Field5 I got a leaflet through the door for a company offering this, and I was like - when in this geological epoch has there not been enough water to grow grass in the north of England??
So I assume someone has invented a thing and franchised it out

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Just learnt that in Germany, the equivalent of STEM is MINT (Mathe, Ingenierung, Naturwissenschaft, Tischtennis??)

Are there any more too-clever acronyms for nerdsports around the world?

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In reply to @Mathematical_A

@Mathematical_A thanks!

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In reply to @pippinsboss

@pippinsboss @Mathematical_A is there any chance you could send me a copy of that article?

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In reply to @pippinsboss

@pippinsboss @Mathematical_A done!

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In reply to @DavidB52s

@DavidB52s @MathsImpact I don't agree with this attitude. If the notation doesn't make the difference clear, we should try to improve the notation

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In reply to @Clare_L_Wallace

@Clare_L_Wallace

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In reply to @SpookySpctrlSeq

@SpookySpctrlSeq @pwr2dppl The correct answer is "problems"

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In reply to @robinhouston

@robinhouston @LucasVB 'Shortlex' is what I've always used

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In reply to @ZenoRogue

@ZenoRogue @robinhouston @LucasVB there are loads of words made from mixes of languages

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In reply to @ZenoRogue

@ZenoRogue @robinhouston @LucasVB I think much like Perl, at some point in England's past we declared that every word in every other language is a valid English word.

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I'm trying to do some writing about the design of @NclNumbas.
So far, I've written drafts of two articles.
The first is about marking algorithms: numbas.org.uk/behind-the-des…
And the second, which I've just finished, is about pattern-matching expressions: numbas.org.uk/behind-the-des…

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It's like they were trying to make a textbook example of problematic gender roles! twitter.com/Helen31098957/…

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In reply to @CardColm

@CardColm There's a blue plaque for Zamyatin in Jesmond, a Newcastle suburb. I used to walk past it every day, and I always meant to get a copy of "We". Not very into dystopias, now I'm living in one

1 favourite 2 retweets

@chadtopaz "here's an algorithm that finds the shortest path through a graph. But am I just saying that, or does it actually do it?"

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Someone at work sent me this algebra puzzle, which I think came from The Times newspaper:

Solve 9ˣ+15ˣ=25ˣ.

(I know the answer)

Have you seen it before? Did you see it in The Times?

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In reply to @icecolbeveridge

@icecolbeveridge Yes, I feel the same

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In reply to @christianp

@icecolbeveridge You were much quicker than I was!

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In reply to @ggerardk

@ggerardk Thanks!

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In reply to @robeastaway

@robeastaway Water! Water! And not a drop to drink!

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Give me the confidence to reinvent randomised maths assessment in Excel, and to claim it's plagiarism-proof: arxiv.org/abs/2109.09277
(why is this in Math.HO?)

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Here's me wasting valuable seconds (aggregated over several weeks) holding down the left mouse button on firefox's new tab button to pick a container, when it pops up instantly if I click the right mouse button!
What a dope!

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University homepages should make it easy to check if a certain person still works there. Academics move around so much, and the continued existence of a personal homepage on the uni's domain isn't always evidence they're still there!

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In reply to @icecolbeveridge

@icecolbeveridge @RobJLow @tstarkey1212 I stand by that tag

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In reply to @lukejanicke

@lukejanicke Somehow, I don't know how, I'm still allowed to have my personal homepage be a static page, which is stored on a shared Unix server - staff.ncl.ac.uk/christian.perf…
I don't know how long it would take to disappear if I moved on

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If I said "the gender pay gap is 15%", does that mean men are paid 15% more than women, or women are paid 15% less than men?

(assume wlog men are paid more than women)

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In reply to @linguanumerate

@linguanumerate @phc27x @sam_power_825 yes, that's how I've always interpreted it.
It just occurred to me that someone wanting to make more of an impact would use percentage of women's pay, which would give a bigger number. But "pay gap of 200%" when men earn 3× as much would raise eyebrows, so maybe that's why

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In reply to @christianp

Following on from this: should percentage differences always be given in terms of the bigger quantity, unless you explicitly use the words "more" or "less"?

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@piplustwo how do you make the distinction? You could say salaries are positively biased towards men.
That would make sense if looking at a job traditionally performed by women, which men start doing, and they get paid more. Programming could be an example of that.

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I'm a bit uneasy about GitHub's dependabot training me to merge pull requests claiming to bump up dependency version numbers without looking at the actual commit inside

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In reply to @jjaron

@jjaron that used to be called a slashdotting

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Just closed a GitHub issue a fortnight younger than my daughter, who has just started nursery school: github.com/numbas/numbas-…
(Can I be excused for missing it at the time?)

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In reply to @minouette

@minouette mine does!

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In reply to @minouette

@minouette likewise

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A slightly more complicated #LullabySequence:

2,3,4,2,5,6,4,2,7,8,6,4,2,9,6,4,2,…

What's my pattern?

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In reply to @peterrowlett

@peterrowlett Hark at you with your injective halving operation!

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I've just found this great game by @mikenitowski - "Factors game" mnito.github.io/factors-game/
You move a number down a grid, choosing a number to combine with at each step. If it's a factor of your number, it divides, otherwise, it adds. The aim is to get to 1. It's very well made!

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Parenting

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In reply to @jjsanderson

@jjsanderson do you have some unintended global state?

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In reply to @GreyAlien

@GreyAlien Yesssss

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In reply to @northumbriana

@northumbriana There definitely is. The 'o' sound is distinctive too. I think Whitley High is the nexus

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Trying out two new things with my slides for a talk tomorrow: a QR code on each slide, pointing to exactly that slide; funky border-radius on images

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In reply to @christianp

(I've broken the habit of a lifetime and done some work at the weekend because I forgot to do it earlier in the week)

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In reply to @TilingBot

@TilingBot Oh well, they can't all be winners

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Currently watching German mathematicians in smart-casual dress cover Pharrell's "Happy".
What a start to my week

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In reply to @Coni777

@Coni777 The opening session of the DMV-ÖMG conference

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In reply to @BernhardWerner

@BernhardWerner it certainly got my attention

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In reply to @Coni777

@Coni777 no idea if there'll be a recording, sorry. I wouldn't expect so, since I had to pay an attendance fee

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In reply to @christianp

they're called the "Stormy Hill Hot Three".

Didn't quite top the Belgian one-man jazz band last time I was in the Netherlands, but it came close

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In reply to @Coni777

@Coni777 found it: youtube.com/watch?v=0ql8mb…

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In reply to @HigherGeometer

@HigherGeometer "Yeah, automatic label placement will be fine"

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Today I learned that Newcastle is roughly at the same latitude as the German-Danish border.
Not sure what to do with this information. Something to do with Otto von Bismarck, but what?

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Been up since 4 with the boy. Found an episode of Mr Tumble I haven't seen before. Get in!

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In reply to @honeypisquared

@honeypisquared my colourblind eyes say apple

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In reply to @josstified

@josstified let me consult my Professional Acronym Framework

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Grown-up maths people who don't need to do exams any more: when's the last time you used interval notation?

I'm talking about things like (1,3] for "the interval between 1 and 3, including 3 but not 1".

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In reply to @sbagley

@sbagley @elizabethmunch Now I'll always remember what heteroscedasticity means, so thanks!

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Does anybody know if there's a keyboard shortcut in Mac Safari that clears every form input on the page?
I'm trying to work out what happened in a very weird bug report from a student.

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In reply to @madebyburton

@madebyburton I've seen that page and didn't find anything relevant in it

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In reply to @TheCRISPRGuy

@chkyourbrain I'm not looking for a quick way of clearing a form, I'm trying to work out how this student apparently did that

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In reply to @PaulsPrattle

@PaulsPrattle that looks like they've just scraped stackoverflow and not provided links back to the original questions?

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In reply to @TheCRISPRGuy

@chkyourbrain I wrote the code. There isn't

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In reply to @GhostMutt

@GhostMutt there isn't

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In reply to @christianp

thanks for your suggestions, everyone. This one might have to remain a mystery!

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Past CLP has successfully pressured me into doing something I'd kept putting off: I'm giving a talk next Wednesday about some code that I wanted to have written by then. Started today!

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In reply to @ZenoRogue

@ZenoRogue Student was doing a @NclNumbas test, then all of a sudden every answer box was emptied. Student can't remember doing anything unusual, and as the developer of the system I know there's no function in it to make that happen.

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In reply to @danaernst

@danaernst I'm colourblind and my masters thesis had lots of Cayley graphs! Edge styles, or labels, is the way to go.
If you can't do without colour, colorbrewer2.org can give you a palette of at most 5 colourblind-safe colours, but realistically 4 is your max for thin edges

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18 months in, I still don't know how to end a work video call in a non-awkward fashion

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In reply to @christianp

I think the reason it's so much worse than an audio-only call is that there's inevitably a couple of seconds where you're trying to find the "end call" button, and you can see each other looking for it, and you can't be waving or making eye contact or whatever

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James looks giddy, like a kid in a sweet shop!
(which he has just finished filling with sweets) twitter.com/jamesgrime/sta…

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In reply to @robinhouston

@robinhouston @gregeganSF I did it recently. I've had no regrets!

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In reply to @christianp

@robinhouston @gregeganSF although I did see this thread, so it's clearly not a perfect solution

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October

In reply to @ch_nira

@ch_nira I'm sad I couldn't make it to your talk this morning. It's my day off, but I was intending to turn zoom on for the hour. Unfortunately my daughter had a raging temperature last night, so it's all hands on deck!

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In reply to @LongFormMath

@LongFormMath Probably. A student once put on her application for a summer project that she'd done some modelling. We later discovered it wasn't the kind we were interested in...

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In reply to @Bishnavitch

@Bishnavitch I know you like your food but this is a bit much, isn't it?

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Getting the pen plotter to draw some big maths notation to go on the wall behind me for video calls.
What should I get it to write?
Might start with a medley of ambiguous notation from whystartat.xyz

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In reply to @christianp

I've gone with this page of mathematical oddities to start with. Bit cross about the brackets in the second-last row going wrong

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In reply to @soupie66

@soupie66 But that's the whole point

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@chadtopaz If you order that one a briefcase of CIA secrets is brought to your table

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People who say ambiguous equations should just have more symbols in them: what do you do about this?

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In reply to @JDHamkins

@JDHamkins @pkrautz Or the other option is to introduce a symbol separating columns in a matrix

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In reply to @hartkp

@hartkp ooh, here's a challenge then: categorise these as column vector, square matrix, or invalid due to spacing

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In reply to @BernhardWerner

@BernhardWerner @JDHamkins so in a world where a small unary minus means negation, are the left-hand sides of my equations in the picture above equivalent?

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In reply to @JDHamkins

@JDHamkins @pkrautz I have a feeling @howie_hua has tweeted something about this in the past and I sort of agreed with it but couldn't quite be bothered to actually follow through and do it

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In reply to @JDHamkins

@JDHamkins @BernhardWerner how do you resolve these ambiguities in handwriting?

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In reply to @Smylers2

@Smylers2 @JDHamkins @pkrautz my thoughts exactly!

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In reply to @JDHamkins

@JDHamkins @BernhardWerner I think my point is, given that reliably getting spacing right is hard: shouldn't we do make a mark like sticking a comma between entries in a row, to make it clearer?

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In reply to @christianp

@JDHamkins @pkrautz @howie_hua Here's Florian Cajori on the subject. I endorse none of these solutions!
archive.org/details/histor…

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In reply to @logopetria

@logopetria There are often alternatives to sub/superscripts: some people write exp(long thing) instead of e^{long thing}, for example, to avoid putting too much in a superscript.

Is there an alternative notation for this situation?

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In reply to @christianp

This thread brought to you by whystartat.xyz/wiki/Space_is_….

Summary of solutions offered:

* use a smaller dash for "negative" and longer for "minus"
* superscript dash for "negative"
* get really good at judging spacing by eye
* go big on column padding

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In reply to @GoranNewsum

@GoranNewsum If you just saw the left hand side of the equation, what would you put in the right?

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Don't Let The Other People On The Zoom Call Know Your Shoulder Has Fallen Out Of Its Socket Challenge.

#JustEhlersDanlosThings

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In reply to @icecolbeveridge

@icecolbeveridge @missradders Oh yes, I saw it went in. V busy at the mo. Will try to look tonight or tomorrow night.

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In reply to @icecolbeveridge

@icecolbeveridge @missradders No, thank you!

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In reply to @icecolbeveridge

@icecolbeveridge Scheduled for tomorrow morning

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In reply to @CardColm

@CardColm I'm pretty sure our algebra module has a bit about completing the square mod n

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I really regret deleting the code I decided wouldn't work a few days ago.
It was only a page or so, but I don't fancy writing it again

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In reply to @kyledevans

@kyledevans @AllenAndUnwinUK I've got mine!

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Sorry for the terminally dull tweet, but I need to vent: why is Sharepoint so absolutely insistent on not letting links or the browser's back and forward buttons work how they should?

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In reply to @christianp

it feels like it wants to be a single page app, where things that look like links can in fact just change the content of the current page, but when the vast majority of links are to different documents, that doesn't really work

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Trying to find out what the base of the natural logarithm is called in R.
Unsurprisingly, googling "r e" didn't turn up anything useful

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In reply to @PaulsPrattle

@PaulsPrattle the opposite - exp - but thanks

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In reply to @osvaldoics

@osvaldoics I don't know if that's something @ColorBrewer does

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The word 'incomprehensibly' has half of the letters of the alphabet in it.

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Does anyone have a convincing story about why exponentiation isn't commutative?

Like, what happens here:
a + b: repeat "add 1" b times
a × b: repeat "add a" b times
a^b: repeat "times a" b times

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In reply to @christianp

are there other sequences of operations built by repeating the previous one that are all commutative?

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In reply to @ColinTheMathmo

@ColinTheMathmo @icecolbeveridge @robinhouston The story goes that Dracula has to count everything he sees.
I feel like I've just dropped a bag of marbles in front of a gang of vampires.

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Suggestions for mathematical diagrams that you might want to assess a student's interaction with, please. Interaction could be moving objects in the diagram, typing a number or formula in a box, or ticking checkboxes.

So far I've got...

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In reply to @christianp

Placing objects on a Venn diagram: drag a point to an appropriate position, or tick boxes representing membership in each of the sets.

Move a point to given coordinates: drag a point on a grid, or type in Cartesian coordinates

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In reply to @christianp

I suppose I should just take a wander round geogebra.org...

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In reply to @christianp

Make a spanning tree: include/exclude edges of a graph by clicking them or toggling checkboxes.

Label parts of a diagram: move labels next to the corresponding objects

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In reply to @BernhardWerner

@BernhardWerner at the moment I'm looking at stuff that can be assessed, i.e. cases where you give the student a score based on what they did

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In reply to @christianp

@BernhardWerner please do send me CindyJS examples!

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In reply to @BernhardWerner

@BernhardWerner these are great, thanks!

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In reply to @samholloway

@samholloway and now I have to go and find it on youtube

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In reply to @icecolbeveridge

@icecolbeveridge @tombutton You can't spell it without 'oral balm' either, but that might be a coincidence

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They boy watched the Teletubbies eating breakfast and now he wants his.
"Beffeh!" he shouts. "BEFFEH!!!"
Thanks, Teletubbies.

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In reply to @standupmaths

@standupmaths Three comments/questions:
1 - Leeds is now quadratic?
2 - We can't have uppercase digits, but we can have zero-flat?
3 - I have to note your face's journey from "here's Matt with another maths fact" to "isn't that cool? This many eyebrows can't be wrong!" during this video

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@AGolian crikey, I made that! Where did you dig it up from?
Many years later, @mscroggs made a much better one with more manifolds: mscroggs.co.uk/mathsteroids/

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Eeeee, ee eeeee, eee eeee ee eeeee eeeeeeeee, e eeeee, ee
eeeeeee eeeeeeeee eee eee eeeee ee Eeeeeee, e eeee ee
eeeeeeeee, e eeee, eee, ee eeeeeeeeeeeee eeeeeeeeeee (eeeeee
eee eeee eee ee e eeee eee eeeeeee Eeeee-Eeeeeeee eeeeeee...

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In reply to @christianp

(the opening paragraph of Georges Perec's "A Void", with every letter replaced by e)

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In reply to @henryseg

@henryseg @AGolian @mscroggs @ZenoRogue @roice713 I have a hyperbolic asteroids somewhere...

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In reply to @pwr2dppl

@pwr2dppl @blkmathmagic I know nothing, and I know about him

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In reply to @professorbrenda

@professorbrenda @stevenstrogatz TITs buildings encyclopediaofmath.org/wiki/Tits_buil…

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In reply to @professorbrenda

@professorbrenda @stevenstrogatz Astonishing

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In reply to @christianp

@professorbrenda @stevenstrogatz CATegory theory

(I couldn't resist putting the cat among the pigeons)

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In reply to @kelseyahe

@kelseyahe We're happy to have stuff from students at @aperiodical

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In reply to @jjaron

@jjaron @writesJW I also had this recently and was told it was the sensors in the fridge compartment, which can't be replaced, so also bought a new one. Moved the old one to the garage and plugged it in and it started working again.
So try voodoo?

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International Tell Someone You Love That Excel Is Not The Right Medium For Forms Day

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@chadtopaz @pwr2dppl I'm intrigued by the possibility of other chicken recipes that don't involve killing it first.

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In reply to @christianp

this form contains checkboxes (reasonable: it's a form) which web excel doesn't support (reasonable: spreadsheets are for text) so I have to log in to the Virtual Desktop to load desktop Excel (unreasonable: we have like three official ways of making forms, one made in-house)

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In reply to @christianp

@chadtopaz @pwr2dppl "Step 1: Take a poussin. Listen to its hopes and concerns for its future. Show it the film Chicken Run. Together, select a variety of millet to use in step 2"

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In reply to @GreyAlien

@GreyAlien maybe people think there's more likely to be a vulnerable person in Boots?

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In reply to @FMSDiversityNCL

@FMSDiversityNCL @EqualityNCLUni could you put the sign-up link in the text of a tweet instead of just in the image?

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In reply to @ben_nuttall

@ben_nuttall pathlib is the best invention in a very long time

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Before I click on this headline: mean or median?

And follow-up question: how far apart are they?

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In reply to @christianp

I'll click on the link at midday. My mind is a blur of possibilities!

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In the vein of artisanal integers, such as brooklynintegers.com, I'd like to start producing artisanal proofs, where "wlog" stands for *with* loss of generality!

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Anyone want to take median and enrich Paul? twitter.com/ptwiddle/statu…

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Just typed the sentence "in this measurement, large outliers are common".

How do I phrase that so it's not an oxymoron? Like, quite often when you collect this data, there's an outlier.

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In reply to @christianp

well, I've clicked on the link: bbc.co.uk/news/business-…
It doesn't specify mean or median, but gives a more precise figure of £78.54, which couldn't be the median unless there are some very fancy ATMs

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In reply to @PaulsPrattle

@PaulsPrattle I'm describing what you're likely to see in a scatter graph, so not that

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In reply to @dandersod

@dandersod I like the way you think

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Currently in the audience of a Zoom talk. The number of different notifications coming through the speaker's mic are stressing me out.
Dude, I think you're too busy to speak to us!

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whoah, I've just noticed that Neil Sloane mentioned one of my integer sequences in a talk at Doron Zeilberger's experimental math class! oeis.org/A268176/a26817…

If coming up with questions was as hard as answering them, I'd feel a real sense of achievement now

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In reply to @christianp

and looking through the history, I see it's a classic CLP OEIS submission: I was fiddling around following an aesthetic, and the incredibly patient editors fixed it until it was presentable.

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In reply to @jjsanderson

@jjsanderson Would you like someone to talk it through with?

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While trying not to scratch the chicken pox I've somehow caught for the second time, I wondered why so many medically unlikely things happen to me.

But then I channelled my inner @d_spiegel and thought: how many rare illnesses should I expect to have in my lifetime?

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In reply to @christianp

How many "1 in 1000" illnesses should I expect to have? If they're independent of each other and I'm no more susceptible than average, it still depends on how many different illnesses they are.
If there are 1000, I should expect to catch 1, and shouldn't be surprised if I catch 2

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A list of all the characters you can use to write words is called an alphabet or a syllabary.
What is the list of characters you can use to write numbers called? Is there a name?

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In reply to @christianp

first algebraist to say 'alphabet' is getting blocked

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In reply to @madebyburton

@madebyburton I only know that as an adjective. Is it also a noun?

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In reply to @BernhardWerner

@BernhardWerner following 'syllabary', I think I like 'digitary'

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Challenge: starting from durham.ac.uk, get to durham.ac.uk/departments/ac… only by clicking on links.
There *must* be something I'm missing!
Expanding the challenge to typing in the search box, even "mathematics department" doesn't get it on the first page of results!

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In reply to @JonathanHoefler

@JonathanHoefler ah yes, thanks. I spent a while trying to remember if I know the difference between 'digit' and 'numeral', and forgot about 'figure'.

So is there a name for the set of figures?

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In reply to @ZlM0N

@SimonVonDulwich ahhh, that's where it's hiding! Thanks!
Did you do this on mobile? I think on desktop the large nav at the top is much more prominent than those links in the footer

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In reply to @JonathanHoefler

@JonathanHoefler thanks!
I'm still not sure if this scratches my itch: I can say "the figures", but I can't say "a figures".
Like: "the Welsh alphabet has no X", vs "the Roman <set of figures> has no 0". I want one word for "set of figures", and apparently I'm willing to waste a day finding it

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In reply to @JonathanHoefler

@JonathanHoefler can you explain how it's imprecise? I know nothing and I don't think I can see the distinction you're making

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In reply to @mathzorro

@mathzorro ah! I did just miss a link in the right place, then

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In reply to @jjsanderson

@jjsanderson yes! I've yet to find someone who's happy with the way sharepoint works.
I think we should put the librarians in charge of the intranet.

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In reply to @JonathanHoefler

@JonathanHoefler Thanks for indulging me with your expertise! I think I agree with most of that.
I'd consider √ more like punctuation than a letter of the alphabet.
I didn't really start with the "what's in the alphabet" question -

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In reply to @christianp

@JonathanHoefler ... it was more: when writing my salary, I use the 'digitary' 012345678798. When writing a binary number, I use the 'digitary' 01.
It's not about what they mean, it's about which digits can come up.

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In reply to @JonathanHoefler

@JonathanHoefler me too! Have you seen my site whystartat.xyz ?
If you have any typography-related qualms to record there, I'd love to see them

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In reply to @JonathanHoefler

@JonathanHoefler (p or P does not alter 'perfect'. The meaning remains the same 😉)

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In reply to @miclugo

@miclugo @schrisomalis ooh, that's going on my Christmas list! Thanks!

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In reply to @howie_hua

@howie_hua 2+2 = 2×2 = 2²

Like, they forgot they'd already cast 4 in one the earlier episodes, *twice*

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In reply to @juliajcarter

@juliajcarter Hi! Was this analysis ever published?

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Is this the only regular 15-gon in my house? Is there a regular polygon with more sides somewhere?
What about your house?

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In reply to @dandersod

@dandersod Yes, it does.

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In reply to @alisonkiddle

@alisonkiddle I reckon so. How many points?

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In reply to @icecolbeveridge

@icecolbeveridge Abductive reasoning: I have no reason to believe it isn't

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@chadtopaz Why would you leave a mess?

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This is really clever! twitter.com/JanDoesMath/st…

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In reply to @josstified

@josstified You're still on SVN?!?!

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TeX is a markup language for mathematics designed to be easy to type on a standard US physical keyboard.
What would an equivalent designed to be easy to type on a phone keyboard look like?

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In reply to @sangwinc

@sangwinc Yes, but that's a different input method. I'm thinking of how much you can get out of a standard phone keyboard

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I have protanopia: I'm really colourblind. I have a couple of apps on my phone which claim to name colours, but they don't work very well.
So I've had a go at making my own, as an easy to remember web page: what-colour-is-that.glitch.me

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In reply to @christianp

all the apps I've used before make the same few mistakes: they give only one colour name, with no confidence estimate, and the list of colours is often _way_ more specific than I can deal with

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In reply to @christianp

my page takes a rolling average over the last few frames, so it doesn't bounce around so much. It shows the top 5 guesses, along with bars showing how confident it is. I've limited the list of colour names to those from simple wikipedia: simple.wikipedia.org/wiki/Colour

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In reply to @christianp

I went further and weighted some of the colour names, so you have to be _really_ close to 'teal' for that to be the best guess, but 'red', 'green' and 'blue' come top more easily.

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In reply to @christianp

I suspect that the apps I've used in the past just use Euclidean distance in RGB colour space to work out closeness. I've used the CIEDE2000 metric, which is supposed to better match how humans with normal colour vision perceive difference

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In reply to @christianp

the last thing is that the camera display only takes up a small portion of the screen; the rest is filled with whatever colour it's naming at the moment - it really helps to check that it's working properly!

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In reply to @CharlesDWimmer

@CharlesDWimmer Yeah, next time the baby has a nap I'm going to look into whether I can control the camera's exposure

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In reply to @aperfect

@aperfect Thanks, great big tool

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Who called them 'virtual school visits over Zoom' and not 'clopen evenings'?

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In reply to @peterrowlett

@peterrowlett 🤷‍♂️

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In reply to @peterrowlett

@peterrowlett If I switch away and come back on android Firefox it goes black, so there must be something I need to get it to react to

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November

Justin is such a pro that he does a bad impression of Lord Tumble when he's not in the costume. Huge respect.
#CLPs6amSomethingSpecialTweet

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Back at work after a week off. 300 unread emails in my inbox.
In half an hour, I've cleared 50 of them. Should be finished by 11, then!

#GoodAtMyJob
#BadAtReadingEmails

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is there a word for when a term signifying a divisive topic becomes acceptable, and then starts being used for so many different things it loses almost all meaning?
A recent example I'm thinking of is 'decolonisation', and I suppose before that 'diversity'.

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In reply to @christianp

it seems like all of a sudden decolonisation has become A Thing We Are Going To Do, but I don't get the sense that many people saying that have a clear idea what they mean

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In reply to @christianp

I first heard it in South Africa in 2016, where students were trying to force their universities to examine where the material they taught came from, and use traditionally local ways of knowledge more. That felt easy to understand, and definitely didn't have institutional support

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In reply to @christianp

now here in Newcastle, I've been in so many meetings and events where decolonisation was mentioned, and it seems to be boiling down to 'teach history', and the people talking about it are largely like me, white and British.

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In reply to @linguanumerate

@linguanumerate my first feeling was that it's some kind of saturation: the sum of everyone's understanding of what the term means eventually encompasses everything

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In reply to @christianp

I think this also happens a lot in tech, whenever there's a buzzword that is good to be associated with.
'The cloud' feels like it's lost whatever loose meaning it originally had.

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In reply to @christianp

'Hipster' has had a long and varied history, but it had a fairly specific meaning in the early 2000s, before expanding to mean 'anything new I don't like'

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In reply to @gotai1234

@gotai1234

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In reply to @linguanumerate

@linguanumerate I agree!

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In reply to @GwendolynHuot

@GwendolynHuot thanks! I'll use that

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In reply to @christianp

oh, 0 unread emails at 10:00, but then I had a zoom meeting and forgot to tweet.
I drastically overestimated the importance of the emails I hadn't read!

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In reply to @sarahlovesmaths

@sarahlovesmaths hah, that's a good way of viewing it!

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Do my literature review for me before I do this experiment:
ask students to write out a proof, then show them a marking rubric and ask them to mark their own proof. Compare against a normal marker's marking. Are the students' marks fair and reliable at all?

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In reply to @christianp

Has anyone done this before? I've seen peer grading, but can't remember seeing self-marking for mathematical proofs. I reckon it's probably been done, though.
@sangwinc ?

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In reply to @heavymetalmaths

@heavymetalmaths That's a much posher cover than the one on my copy!

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@chadtopaz I'd like that on a t-shirt (on the back, obv)

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What tool should I be using for this job?
I'm conducting a survey of things, to compare with each other. For each thing, I record a name and some arbitrary notes, then I have a long list of yes/no questions to answer.
(1/n)

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In reply to @christianp

For a given set of answers to some of the questions, I'd like to be able to quickly see which things match. Additionally, some questions only make sense if the answer to another question was 'yes', so I'd like not to see them for things where the answer is 'no'.
(2/n)

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In reply to @christianp

At the moment, I've got a spreadsheet. I don't think I can do the grouping easily, and it's hard to store and read long passages of text for the notes.
In the 90s, I'd consider using something like Access. Can a diagramming tool like Miro do the automatic grouping?

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In reply to @christianp

The other option I can think of is to have a load of pieces of paper that I shuffle about, but:
1) I want a tidy desk
2) this feels like the one job that computers were invented for.

All suggestions welcome!
(4/4)

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In reply to @aperfect

@aperfect thanks! I've heard of airtable but never used it. I'll give it a go

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Airtable looks like exactly what I want - airtable.com twitter.com/aperfect/statu…

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2 4 6 8 10
7 9 1 3 5
Does this bother anyone else?

(Fisher-Price piggy bank)

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Do we know about dot products for the purpose of this proof?

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In reply to @CNUMathDept

@CNUMathDept yeah, but
1 2 3 4 5
6 7 8 9 10
would do the same and trouble me much less

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Here's what I think is an OK proof. It took me a bit of thinking, and you'll note this is a day after I first saw your tweet! But I don't think it's obtuse. I can remember seeing a problem like this in the past that made thinking in vectors 'click' for me.
youtube.com/watch?v=qXPjUU…

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In reply to @christianp

@DavidKButlerUoA I can't immediately think of a way of proving it without vectors, by the way. It's just what you're familiar with, I reckon

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In reply to @sangwinc

@sangwinc oh dear!

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There's a live feed of bus locations?
So it's possible that I could get my pen plotter to draw out the route of a bus on a map, as it follows it.
Must resist temptation to get sidetracked on a work day twitter.com/NewcastleCC/st…

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @Whitehughes in your video it felt like you spent ages not noticing that you had an equation for MC that you could rearrange.
I think my internal monologue looks for paths between two points, and then you write down the path as a sum of the vectors along it.

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In reply to @icecolbeveridge

@icecolbeveridge @DavidKButlerUoA I think you have in spirit the same solution as me. I spent most of my time unsure if I could expand out the dot product, and then wondering where I'd used the isosceles property before remembering a.a = |a|², so I need |a| = |b| (I first had a.a = 1)

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @Whitehughes I won't lie, I tried them all!

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do I know anyone with a Wolfram Alpha pro account who could show me what the problem generator looks like? wolframalpha.com/pro/problem-ge…

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In reply to @madebyburton

@madebyburton you paid 12×£6.50?!

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In reply to @madebyburton

@madebyburton golly! Thank you very much!
Could you do a quick screen recording of picking a question to answer, and answering it?

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In reply to @madebyburton

@madebyburton thank you very much! Hopefully you can make use of the Pro account for other purposes

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In reply to @madebyburton

@madebyburton would you mind having a go at something a bit harder?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @Whitehughes I had a strong sense while going through my solution that I was really just repeating a similar example I'd seen before. I tried to mention the points where I'd made a decision or needed to check something, but I definitely skipped explaining some bits

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In reply to @christianp

@DavidKButlerUoA @Whitehughes I suppose mathematical fluency is having that stock of stuff you use without really thinking about it

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In reply to @peterrowlett

@peterrowlett how are you delivering your coursebuilder stuff to students? Do you just upload it to some webspace? Do you do anything to control access?

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In reply to @peterrowlett

@peterrowlett yes please! Actually, are you free now to join a zoom call?

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In reply to @madebyburton

@madebyburton Thanks, that's really helpful!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @Whitehughes I agree, but given that exams exist, my perspective is that producing a proof demonstrates fluency, which is what you want students to end up with. It's a high bar to clear, so in a large general service course it shouldn't make up too much of the available credit

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In reply to @madebyburton

@madebyburton Ooh, now I'd be very interested in seeing what trouble you had

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In reply to @ChrisMaslanka

@ChrisMaslanka what's the essential feature it misses?

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In reply to @Smylers2

@Smylers2 I first saw touch screens in 2012ish, I think.

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Three video calls already today, and it's not even 10am. The baby woke up at 4, as well. Can I go to sleep now?

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I keep a collection of ambiguities and oddities in mathematical notation at whystartat.xyz/wiki/Main_Page.
Are there any unresolved ambiguities in the standard style of drawing geometrical diagrams?
(is there a standard style of drawing geometrical diagrams?)

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In reply to @BernhardWerner

@BernhardWerner Ooh, good ones!

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In reply to @peterrowlett

@peterrowlett Feels like #dimensionchat

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In reply to @pogonomaths

@pogonomaths Congratulations!

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In reply to @KyrallTheGreat

@KyrallTheGreat @kyledevans Yes, I came here to say it definitely doesn't contain 80085

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In reply to @JM_Field5

@JM_Field5 What's it called?

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In reply to @JM_Field5

@JM_Field5 I imagine that was commissioned immediately after they came up with the title!

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The pseudorhomicuboctahedron can never be an Archimedean solid.
RT if you agree

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In reply to @christianp

Quite cross that I've just noticed the missing b.
It's pseudorhombicuboctahedron.
#ThanksHamlet

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Just realised that if @BigMathsJam is going ahead in a couple of weeks then I need to do that thing I was planning on doing

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In reply to @HughPumphrey

@HughPumphrey That page is going straight in read.somethingorotherwhatever.com, thank you!

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In reply to @christianp

Update: the maths part of the thing is done. If anyone fancies doing a bit of illustration, I'd appreciate the help! Otherwise I have to brush up on my brushwork @Ayliean @Andrew_Taylor @hanaayoob

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In reply to @wtgowers

@wtgowers @RichardElwes I think Richard was saying if you loosen the definition of one class, why not loosen definitions of others, like the platonic solids?

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In reply to @BofingerDavid

@BofingerDavid Look at the top and bottom thirds. In 'not you', a triangle is above a square. In the other one, a triangle is above a triangle

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In reply to @BofingerDavid

@BofingerDavid For the pseudorhombicuboctahedron ('not you'), there's no combination of rotations and reflections that moves a top triangle exactly to where a bottom triangle was

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In reply to @icecolbeveridge

@icecolbeveridge Absolutely

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In reply to @christianp

@icecolbeveridge Examples of other hard-to-pronounce functions welcome. ln is the first one I thought of

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In reply to @icecolbeveridge

@icecolbeveridge From my etymological dictionary:

Camel: erfc 'orse

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Inspired by @mrsouthernmaths and @icecolbeveridge, a new page on my wiki of mathematical notation oddities - "Functions with no standard pronunciation"
whystartat.xyz/wiki/Functions…
If you think of more, please add them!

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In reply to @christianp

@mrsouthernmaths @icecolbeveridge and why not: Symbols with no standard pronunciation whystartat.xyz/wiki/Symbols_w…

I reckon there are loads of these

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In reply to @icecolbeveridge

@icecolbeveridge That is an excellent example

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In reply to @christianp

@icecolbeveridge I think I'd fall back on 'twiddle'

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In reply to @TeacherBowTie

@TeacherBowTie Yes!

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In reply to @pwr2dppl

@pwr2dppl Somewhere there is a manufacturer's slide deck full of how intuitive those are and what an advance it is for salt lid technology

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In reply to @samholloway

@samholloway @SeatonDelavalNT Ahh, you must have driven past my house!

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In reply to @ForumBooks

@ForumBooks do you have Armando Iannucci's "Pandemonium" in stock at The Bound? Just had a last minute present idea!

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setting my out of office message twitter.com/UCUequality/st…

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In reply to @peterrowlett

@peterrowlett @QAAtweets Very much rather you than me, but well done!

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In reply to @edsouthall

@edsouthall @SparksMaths @tessmaths can I interest either of you in noticing that the × symbol is just the + sign, rotated?

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In reply to @christianp

@edsouthall @SparksMaths @tessmaths I don't know about you, but I think that the + symbol should be longer than ×

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In reply to @ForumBooks

@ForumBooks Just been in and bought it 👍

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In reply to @pwr2dppl

@pwr2dppl I'm responsible for the online assessment where I work. Every now and then I see a student who keeps coming back to the same homework to get 100%, and I so want to email them and tell them to look out the window.
But hey, maybe stage 1 calculus is like sudoku to them

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It's all well and good saying we have to raise the next generation of problem solvers, but I just told my one-year-old that it's too early to go outside, so he went to the kitchen bin and mimed taking it out

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Falsehoods programmers believe about content management systems: people will only type real locations in the location field.

Hence this page for a zoom meeting, showing a map centred on a business called "Zoom Online" in Montpellier: cpd.web.ucu.org.uk/events/regiona…

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Checking my router's status page for the connection speed I should be getting seems to have embarrassed this file into downloading faster

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In reply to @peterrowlett

@peterrowlett I think that a real-world problem motivating a new area of maths feels like the natural way for things to go, so we wouldn't even notice it

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Search for number facts sites without searching for number facts sites

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Is there a one-word name for when you give an angle in degrees, minutes and seconds?

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In reply to @pippinsboss

@pippinsboss I'll inform the surveying lecturers

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omg I've come up with a new permutation of the integers that isn't in the OEIS! 🤩🤩🤩

... ah, rats, I'm just off by 1

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Me too! See you there! twitter.com/peterrowlett/s…

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In reply to @TimFooler

@TimFooler Thanks! So if I said to write "a sexagesimal angle", you'd know what to do?

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In reply to @aap03102

@aap03102 @EulersNephew @MarkChubb3 Thanks for the kind words!

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In reply to @preetster

@preetster I saw this recently twitter.com/missradders/st…

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In reply to @peterrowlett

@peterrowlett extra credit question: what's the probability this question was written in the USA, where there are only 6 different coins (or 5 if you exclude the $1, which you rarely see)?

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In reply to @HilariousCow

@HilariousCow Brings back memories of that Microsoft sidewinder controller, and Motocross Madness

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The masons have got a sign outside their lodge saying "new members welcome". I didn't think that was how it worked

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In reply to @Andrew_Taylor

@Andrew_Taylor @Ayliean @hanaayoob Sorry! I've just remembered I never replied to this! It's a bit late on now, but do I have your email address?

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In reply to @d_yellowlees

@d_yellowlees how do you feel about white text on dark bg vs black text on light bg?

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In reply to @AndrewHolding

@AndrewHolding @d_yellowlees I'm having trouble imagining that not searing my eyes, but I'm colourblind. Can you give an example?

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In reply to @AndrewHolding

@AndrewHolding @d_yellowlees wowww! I consider myself lucky never to have encountered that.
It was that kind of received wisdom that I wanted to check I wasn't blindly following with white text on black

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In reply to @rarh3

@rarh3 @d_yellowlees @SparksMaths Here's a shot of @d_yellowlees' last in-person talk

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Europeans! You use a comma for the decimal separator, like π = 3,14159... which is FINE.

But what do you do for functions of more than one variable?

Like: f(x,t) = t(1,23, 4,56) ???

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In reply to @BarbaraFantechi

@BarbaraFantechi So you'd use a comma unless there's a non-integer number as one of the parameters?

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In reply to @villares

@villares Always, or just when a comma would cause a problem?

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In reply to @christianp

So far, the answers here are much more consistent with each other than on mastodon: mathstodon.xyz/@christianp/10…

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In reply to @evamirandag

@evamirandag I like the way you think

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In reply to @BarbaraFantechi

@BarbaraFantechi I knew when I wrote it that pedantry was coming! Yes, a number with a comma

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@MiaMathsTeacher @pippinsboss You have problems either way in the UK: before everyone typed on compiter keybowrds, • was very common for the decimal separator

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@MiaMathsTeacher @pippinsboss Yes, but also in old-fashioned typesetting.

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@MiaMathsTeacher Yeah, I think South Africans too. Switzerland and India have fun notation!

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In reply to @HilariousCow

@HilariousCow FYI you need to add both the acronym and its plural to your muted words list, because apparently just the singular wasn't enough to stop me seeing this tweet!

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In reply to @japhethwood

@japhethwood There's @NclNumbas. Runs in the browser, so no server setup; explore mode makes good formative stuff. But if you're looking for a curated library of material... well, we're working on it.

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That's quite a thing for Outlook to log me out in the middle of writing an email!

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In reply to @modeltheorist

@modeltheorist There's a bread baking season?!

Fab crunch on that loaf

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In reply to @modeltheorist

@modeltheorist not a problem I've noticed at this latitude

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In reply to @egimich

@egimich I've replied "I'd like to, but I can't attend at that time" quite a few times lately, so the problem hasn't completely gone away

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"an invite". "a meet".
What other verbs with existing noun forms are we using in the imperative form for instead these days?

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In reply to @christianp

(to be clear, I don't include myself in the "we" in the above)

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In reply to @icecolbeveridge

@icecolbeveridge @miclugo *daft punk noises*

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In reply to @christianp

So many examples! There's got to be a name for this.

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This question immediately occurred to me on looking at this graph: is NHS spending now what it would have been if the annual rise had been constant at the dotted line since 1949? twitter.com/_Jimbo76/statu…

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In reply to @christianp

no alt text on the graph in that quoted tweet, so: a chart showing average annual rise in government spending above inflation, 1949-2019. Five rectangles spanning 1949-1979, 1979-1997, 1997-201, 2010-2015, 2015-2019, and a dotted line just under 4%. (1/2)

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In reply to @christianp

Dotted line labelled "average 1949-2019". The first two blocks are slightly under the dotted line; 1997-2010 is considerably higher; the final two blocks are considerably lower

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I'm practising my @BigMathsJam talk right now for the next ~10 minutes in the Gather space, in case anyone's interested

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This morning, head on the floor and bum in the air, I achieved enlightenment when I realised that yoga is stimming for neurotypical people

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An impromptu mathematical art installation to appear behind me during my @BigMathsJam talk

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In reply to @alephJamesA

@alephJamesA If you run one lap of the course and then run the same route backwards, how many laps have you run?

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In reply to @jjsanderson

@jjsanderson Servo animation, you say? I'm interested!

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In reply to @honeypisquared

@honeypisquared "Did it bite your arm off?"
"No, just a nip"

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A little thread about an extremely simple web-based slideshow I made for my @BigMathsJam talk yesterday.
You can see it at somethingorotherwhatever.com/each-edge-peac…
I wanted to show a little bit of text next to a graphic that changes on each slide.

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In reply to @christianp

reveal.js is 10 years old now, and the way it works has changed a bit to keep up with new stuff in browsers. So each time I make a presentation, I have to decide if I'm going to update reveal.js, and see if it's got a way of doing something I had to hack in before

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In reply to @christianp

For years I've been using reveal.js for presentations, because I do _not_ get on with powerpoint, and I often want to embed web stuff. It's really good, but there's always a point where I get frustrated trying to lay stuff out.

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In reply to @christianp

What do you do when you don't understand how a complicated bit of software works? Write your own copy from scratch!
Then you have only yourself to blame.

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In reply to @christianp

My solution lately has been to use CSS display: grid on slides, because I know how to centre stuff and share out space in a fairly straightforward manner.
But it's always a faff, and reveal.js is now so big I spend a lot of time trying to understand how it works

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In reply to @christianp

I came up with something very simple: each slide is a <section> tag, styled to 100vh height and laid out vertically, so you only see one at a time. They have tabindex="0" so you move between them by pressing Tab.

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In reply to @christianp

The thing that got me this time was having the same graphic displayed on a range of slides, and updating it depending on which slide is shown. I spent a couple of hours fiddling with reveal.js's events API before giving up.

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In reply to @christianp

To update the graphic, I added a 'focus' event listener to each <section> tag, calling a function 'update_graph' with the index of the tag among its siblings.

That's it! It worked brilliantly.

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In reply to @christianp

I was expecting to have to write a thing to call scrollIntoView on the next slide, but Firefox automatically scrolls an element into view when you focus it, so I got the fundamentals of a slideshow without any JS!

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In reply to @christianp

This time, there were no links or interactive bits in the slides that people might want to access on their own, do I just needed it to work for me during the presentation.

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In reply to @christianp

I think for a set of slides I want other people to be able to use, it'd need more stuff: at the moment it only knows which slide is shown from focus events, but it should really pay attention to scrolling too.

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In reply to @christianp

Anyway, I'm not going to make any effort to share this system for other people to make presentations with.
The point is that it's idiosyncratic, a product of exactly the things I know how to do and don't know how to do.

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In reply to @pwr2dppl

@pwr2dppl I think the answer is to have 8 hours of sleep, but I get the feeling that's not the answer you want

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In reply to @pwr2dppl

@pwr2dppl I hope you're sleep-tweeting, because you should be asleep right now

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In reply to @JanvierUK

@JanvierUK this plan is regressive though: poor people lose way more of their inheritable wealth than rich people

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In reply to @icecolbeveridge

@icecolbeveridge @BigMathsJam I'm sad I didn't get to chat to you at big mathsjam. I wasn't around for much of the non-talk time.
Let's bump into each other virtually soon!

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In reply to @alisonkiddle

@alisonkiddle the livestream broke during your talk yesterday. I have a backup recording of my screen, but it turns out the audio is just of my mic, so there's lots of typing noise on top of your speech. Do you want me to put it up with the stream for 72 hours, or just forget it?

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In reply to @alisonkiddle

@alisonkiddle okie dokes!

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In reply to @Tony_Mann

@Tony_Mann the livestream broke during your talk yesterday. I have a backup recording of my screen, but it turns out the audio is just of my mic, so there's lots of typing noise on top of your speech. Do you want me to put it up with the stream for 72 hours, or just forget it?

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In reply to @Tony_Mann

@Tony_Mann if you want a permanent recording, best to do it again, but just for the 72 hours the livestreams are available, I reckon my recording is good enough

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In reply to @christianp

thanks to @pkrautz for telling me about CSS scroll-snap, which lets me insist that you can't scroll halfway between slides. I've replaced the focus listener with a scroll listener, so this now works nicely with just scrolling!

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I have an HTML question I either don't know how to google or nobody has asked before:
I have a web-based editor for a content bank. Users can write HTML descriptions for items, which will be shown on a details page. They might want to use heading tags in their description. (1/2)

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In reply to @christianp

What should I do with heading tags so they don't mess up the page navigation when the description is embedded in a page? Shift everything down, so h1 → h3, h2 → h4, ...? Just leave them as they are? (2/2)

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In reply to @jtombs

@jtombs could do, but I feel like assuming the text will always be displayed under a certain heading level is wrong

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I don't know R, and I'm following a tutorial, so I just started installing tidyverse. It appears I'm in a TeX Live situation - just how much stuff is it installing?

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In reply to @alephJamesA

@alephJamesA mine gave up with inscrutable error messages after 10ish minutes

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the ineffable dignity of goats twitter.com/KevMorgans/sta…

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10 years?! twitter.com/CSH_Picone/sta…

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In reply to @TeaKayB

@TeaKayB this is the kind of thing @CuttleXYZ is very good at. Here's a drawing parameterised by radius of the circle: cuttle.xyz/@christianlp/C…

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Selection bias: Zoom's "how was your experience?" dialog only pops up when it *doesn't* crash in the middle of a call

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In reply to @aperfect

@aperfect that's what I ended up doing - find the top heading level in the content, and shift everything so that level matches the surrounding page

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do I know anyone who has the new Pokémon Brilliant Diamond or Shining Pearl on Switch and has got the Pokétch?
It's for a maths thing

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In reply to @lornajaggard

@lornajaggard fab!!! Would you be willing to spend some time typing things into the calculator and telling me what it produces?

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In reply to @lornajaggard

@lornajaggard super, thanks! Can you follow me so I can DM you?

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In reply to @robeastaway

@robeastaway crikey, Hallam's the place to be!

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In reply to @robeastaway

@robeastaway apparently so

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In reply to @helenarney

@helenarney it seems you're supposed to hang your towel on it?

1 favourite 0 retweets

In reply to @ColinTheMathmo

@ColinTheMathmo the code I'm working on this morning is currently a two-digestive problem

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I've spent the morning making a floating point calculator

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In reply to @henryseg

@henryseg that was my next idea!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA My immediate reaction to this "brainteaser" was that it's one of those "invent and prove the theorem I'm thinking of" ones, and it doesn't look like I was wrong!
I have a feeling @robeastaway has a name for these

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In reply to @christianp

Here's how it looks now. I hadn't realised at first that the order of the inputs matters!

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In reply to @ben_nuttall

@ben_nuttall Elm

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In reply to @eigenbros

@eigenbros Well, both. I want to see if it's easier to use on my phone than a standard calculator, for situations where you want to repeat a calculation with different inputs

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In reply to @onio72

@onio72 Elm. I've put the code on @glitch: floating-point-calculator.glitch.me

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In reply to @howie_hua

@howie_hua This might be your best one yet

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In reply to @christianp

I've put this on @glitch at floating-point-calculator.glitch.me
It now works with touch screens. Next is to add keyboard input

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In reply to @KangarooPhysics

@KangarooPhysics @glitch Yeah, arrows would be helpful. Solving backwards is an interesting idea!

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"This is an international project, so all communication should be in English".

Best said while wearing a pith helmet

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why has rstudio registered itself as the default application for css files?!?

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In reply to @christianp

this might be why I didn't have RStudio installed

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Just discovered that on Ubuntu if you press the play media button on your keyboard after failing to pick up a MS Teams call, it plays the ringtone on loop despite there being no call any more.

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In reply to @Htbaa

@Htbaa I think this is a "hastily put together an Electron app" bug rather than a linux problem

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In reply to @Htbaa

@Htbaa oddly, I wasn't motivated to find out

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Tomorrow I'm giving a maths talk to a load of 15/16 year olds. It's a talk I last gave in 2014, so I've updated it a bit.
I've put my slides online at staff.ncl.ac.uk/christian.perf….
What do you think? (Obviously you don't know what I'll say about them!)

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In reply to @christianp

The talk went really well last time, so I didn't want to change too much. One thing I'm really struck by now is that every character in the story, including me, is a white man. I'm not sure what to do about that.

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In reply to @christianp

I'll tell the kids that the story took place in a time when you pretty much had to be a well-off white man to dedicate time to maths and have me end up knowing about it.

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In reply to @PaddyMaths

@PaddyMaths Yes, I suppose quickly showing a couple of contemporary people would get that point across, even if I'm not showing any maths attributed to them

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December

In reply to @christianp

For comparison, here are the slides I used in 2014: staff.ncl.ac.uk/christian.perf…

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In reply to @ColinTheMathmo

@ColinTheMathmo ƨʍᴉwƨ

Which upside-down?

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In reply to @neheritagelib

@neheritagelib My parents moved to Washington ~40 years ago because they thought the metro was going there. Alas not!

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In reply to @CMoore_84

@CMoore_84 That's really nice to hear, thanks!

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Just for a laugh,
Let G be a graph,
With points called P
And edges called E.
Now draw a line
(just anywhere's fine)
And split up P,
Some for you, some me.
Now look at E,
And how it links P.
If every line
Connects yours to mine,
That graph called G?
Bipartite. QED!

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In reply to @RichardElwes

@RichardElwes Ahh, you're right! I tried to avoid exactly that, but clearly failed in the last iteration

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Pals, @Tegglington has just told me that in Japan they don't use ✓ for "correct", they use 〇.
What other symbols for "correct" and "incorrect" are used around the world?

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In reply to @BernhardWerner

@BernhardWerner What's in the lookup tables?

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In reply to @evelynjlamb

@evelynjlamb @yenergy Whoah, now there's an idea!

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In reply to @christianp

@evelynjlamb @yenergy though if you're looking for uses for leftover fat, look no further than British cooking

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In reply to @john_overholt

@john_overholt I did, one year

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In reply to @christianp

It now looks like this. It takes physical and on-screen keyboard input. I spent a fruitless hour trying to get pinch-to-zoom to work.

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In reply to @mathforge

@mathforge Yes, @KangarooPhysics asked for arrows too. Will do

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In reply to @christianp

@mathforge @KangarooPhysics like this?

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oh wow, firefox developer tools has a tool to simulate colour vision deficiency and contrast loss! developer.mozilla.org/en-US/docs/Too…
Very handy!

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In reply to @soupie66

@soupie66 My memory isn't great 🤷‍♂️

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In reply to @christianp

Numbers can be named! I think this makes the display way easier to read

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Do you have a calculators folder on your phone? If not, why not?

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People with working colour vision who use the web-based Outlook: is the "selected email" colour easy to distinguish from the normal white background? I've just scrolled up and down my inbox half a dozen times trying to find the email I'm looking at!

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In reply to @christianp

I've set up a blank page with the left half that colour, and I honestly couldn't tell if I'd set it up properly! It all looks flat white to me.

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Naming Your Child After Irish Counties

Clare: lovely
Kerry: also fine
Mayo: audacious

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In reply to @christianp

between 1996 and 2015, the only Irish county names given to children born in the UK were:

Cavan (572)
Clare (1062)
Kerry (38)
Tyrone (1445)

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In reply to @christianp

I know many Clares and zero Cavans. Are regional averages on the primary SPaG test published, so I know where to look for them?

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In reply to @suedepom

@suedepom was it immediately clear there are two parts, or did you have to stare for a bit?

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In reply to @sxpmaths

@sxpmaths ooh, is that a thing? Thanks for the hint!

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turns out my Outlook was set to "Organisational theme", so it must be my local IT people to blame! twitter.com/sxpmaths/statu…

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In reply to @pippinsboss

@pippinsboss Interesting!

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techy South Africans: can any of you recommend a server hosting provider in SA? Either virtual or dedicated is fine, but we need a linux box we can do whatever with. (@Pyfagorass?)

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In reply to @Pyfagorass

@Pyfagorass I'd like to avoid them if possible

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In reply to @homovexedus

@homovexedus @Pyfagorass thanks!

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In reply to @christianp

thinking about how to do unary operations. Do I need a shift key for the keypad, to pick from lots of unary ops?

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In reply to @christianp

#JustZenzicThings

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In reply to @jjaron

@jjaron I've got a Samsung one with a twiddly knob for setting the time instead of buttons. Starts a couple of seconds after you stop moving the knob. Changed my life.

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Exciting unintended typography! Using the League of Moveable Type's Junction font, the word "office" looks like "offfice", I guess because it applies an ff ligature and then an fi ligature.

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In reply to @christianp

ack, it's doing it again!

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In reply to @christianp

and to satisfy @Htbaa's curiosity: no, it doesn't keep going after you close the app

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An unexpected logic puzzle, thanks to the baby: can you say how many lids are in the wrong place?
4-year-old said "two pens have the wrong colour lid - maybe we could get some paint and fix them"
#tmwyk

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What should I change A to so that the number at the top is an integer?
Or what should I change B to? Or C?

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In reply to @jjaron

@jjaron is anyone maintaining a page listing the day's scandals, like the one for Trump?

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In reply to @Smylers2

@Smylers2 there's a solution for B that you might call trivial. Or: nobody said B has to be an integer

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In reply to @christianp

@Smylers2 if you do want B to be an integer, then does B = (A-1)·C feel justifiable?

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In reply to @tim_hunt

@tim_hunt Like, conveying the visual layout to assistive tech? I don't think there's a well-defined answer to that

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Mathematicians nationwide wild that everyone else now has to deal with the idea of vacuous truth twitter.com/davidallengree…

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In reply to @Gloryless

@Gloryless Good question. I don't know!

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In reply to @Mrs_Plucker

@Mrs_Plucker For A?

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Me: isn't it weird how people from crypto jewish families follow all sorts of traditions without any conscious reason to maintain them?

Also me: it's Friday - let's have fish!

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In reply to @christianp

The box labelled f does something to a, b and c and produces the number shown above it.
What could f be doing? Have I given you enough information?

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In reply to @ukor

@ukor Fair point. What would f do to a=2, b=3, c=4?

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In reply to @ukor

@ukor My question was deliberately ambiguous. I'm interested to see what you might think is a safe bet about how I defined f

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In reply to @colinfry666

@colinfry666 @ukor yes! Want to have a go at any other values?

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In reply to @ukor

@ukor what would f be, then?

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I want to be the cube. I want the squeezy hug twitter.com/KangarooPhysic…

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In reply to @jjaron

@jjaron what the devil is turmeric cauliflower? I know I'm northern, but those aren't two things I'd ever imagined would need to be packaged together

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In reply to @jjaron

@jjaron yeah, but like, is it a cauliflower coated in turmeric? Have they somehow interbred cauliflower and turmeric?

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Today's annoyance with our IT service's terrible support system: when writing a reply to a message from the person handling the ticket, can't see their message

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In reply to @sangwinc

@sangwinc

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In reply to @alisonkiddle

@alisonkiddle *waves*

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In reply to @Pecnut

@Pecnut @mralistairgreen did you get a sticker? I've just realised that my wife got a sticker after her booster, and I didn't.

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In reply to @Pecnut

@Pecnut @mralistairgreen me neither. I consider this the greatest failing of the vaccination campaign.

PS you travelled a long way to get that jab! Any snow on the hills?

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Years and years ago, I used a command-line music player called something like Cymbelline. It tried to build a markov chain model to decide which song to play next, based on when you skipped songs.
I can't find any trace of it. Does anyone else remember it?

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In reply to @sxpmaths

@sxpmaths thanks, but I don't think that's it

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In reply to @christianp

found it! It was called cymbaline: web.archive.org/web/2007121722…

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I don't know what it says about me that my reaction to this cartoon was to wonder about the elf pay scale, whether "Head", "Chief" and "Lead" signify different points on it, and the politics leading to who gets which twitter.com/tomgauld/statu…

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In reply to @statto

@statto @NHSX @NHSuk reminds me of the "oesophagoose" public health campaign up here - nogu.org.uk
You were supposed to see that written on the side of a bus, then type it in to google. They've stuck with it much longer than I expected!

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degenerate memes club 2022

tag yourself i'm

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icosahedronandonandon twitter.com/HedronApp/stat…

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in database index hell

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In reply to @christianp

emerged from database index hell by working out how to rewrite a join as a subquery.

NOT TODAY, CATEGORY THEORY!

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In reply to @ColinTheMathmo

@ColinTheMathmo maybe it's sitting in a warehouse past customs, so not in the political UK any more, but still in the geographic UK?

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In reply to @ColinTheMathmo

@ColinTheMathmo it feels like one of those cases where both sides would be better off if it was a bit more opaque

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Me, earlier: eugh, so many Christmas cards to make! I know: I'll get the pen plotter to do it!

Me, several hours later: the plotter has drawn two cards, of which one is acceptable

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In reply to @christianp

90 minutes later, I have 8 cards. 15 minutes per card isn't too bad, right? 🤷‍♂️

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In reply to @peterrowlett

@peterrowlett "buying more money" isn't a bad description of what banks do

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In reply to @matthras

@matthras I had a real "Oh hey, it's the guy! From the other place!" moment when I saw you there.

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Here's a @wacnt problem that this tweet inspired: smallest n such that n! has two zeros immediately after the leading digit twitter.com/NewtonInstitut…

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In reply to @JonathanHoefler

@JonathanHoefler I'm autistic so they say I'm lacking mirror neurons to understand other people's perspectives, but when people send me files with my name on, I have serious doubts about which way round it goes!

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2021 Christmas decor

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In reply to @christianp

(I'm happy to report they're all negative)

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In reply to @robinhouston

@robinhouston @Sheena2907 how long does your shower take to warm up?! Do I have new boiler privilege?

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In reply to @edsouthall

@edsouthall @panlepan @TimBrzezinski @MathTechCoach @geogebra The classic trick in other languages is to define two functions: one that returns the first item in each pair, and one that returns the second. Can you do that in Geogebra?

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In reply to @Pecnut

@Pecnut The steel band Christmas songs! Terrible episode though

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I have five stacks of three blocks. I can join two stacks together, or split a stack.
How many splits and joins do I need to do to end up with three stacks of five blocks?

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In reply to @christianp

My real question is: for A stacks of B blocks into B stacks of A blocks, is it ever the case that the strategy that minimises joins is not the same as the strategy that minimises splits?

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In reply to @eduardojdiniz

@eduardojdiniz Yes - to go backwards, swap splits and joins

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In reply to @ZenoRogue

@ZenoRogue (proof left to the reader)

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In reply to @ZenoRogue

@ZenoRogue I think you got the + and - the wrong way round, but I got the idea

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In reply to @jiyameng

@jiyameng Interesting! But some rearranging is allowed, too

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In reply to @gotai1234

@gotai1234 Congratulations!

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Privileged to be at the début performance of my son's new dance drama, "Every Second Without Chocolate Causes Me Physical Pain"

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In reply to @BernhardWerner

@BernhardWerner What are you doing to them?!

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In reply to @ch_nira

@ch_nira @IMAmaths • run the big Math-Off 2022

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In reply to @Shona_Mu

@Shona_Mu Are you into puzzle games? Something easy that you can just crack on with

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Considered adding some of my personal weirdnesses to my profile bio for visibility, but realised there might be too many to fit:
Autistic, dyspraxic, colour blind, hypermobile Ehlers-Danlos.
Is it worth listing things like that? Feels odd. What should the bio contain?

5 favourites 0 retweets

In reply to @samholloway

@samholloway I read "After Eight Variants" as a title in a similar format to "Twenty Eight Days Later"

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In reply to @jjsanderson

@jjsanderson That was THIS YEAR?!?!

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2022

January

The biggest tragedy of 2021 is that I finished my last tube of Signal toothpaste, and now there are no more.

Anyone else who abhors mint: what kind of toothpaste do you use?

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In reply to @ch_nira

@ch_nira @JJrhule1 Congratulations!

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In reply to @soupie66

@soupie66 Yeuch! Thanks for the suggestion, but I'm a right awkward one

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Happy new year! If you're the kind of person that other people ask "is there anything mathematical about this number?", you might find this useful: a 78-page collection of maths facts about 2022, by Inder J Taneja
zenodo.org/record/5805264…

9 favourites 1 retweet

In reply to @lgebrah

@algebrandis I was just about to reply to your other tweet, saying elmo's pronouns are elmo/elmo

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Is there a "Sanitiser stations of the National Trust" account?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Yes, I think gather would be perfect for it

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In reply to @elinoroberts

@elinoroberts Ooh, good idea!

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In reply to @C_J_Smith

@C_J_Smith And on a patterned surface!

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Wild about my sciatica flaring up the night before I go back to work. I can barely straighten my back, let alone sit in a chair and code for 8 hours

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In reply to @Smylers2

@Smylers2 Mrs L-P found another tube of Signal in the travelling bag, so the pressure is off for a little bit longer

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In reply to @josstified

@josstified Which programme was this?

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In reply to @josstified

@josstified thanks! Responding to this might make a good blog post. I might ignore my to-do list long enough to write it!

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SSHing into the PC less than 2m away from me so that I don't have to move my knackered back from this position

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Extremely pleased to finally make some progress with ambiguous `|` symbols in my Asciimath parser: github.com/christianp/asc…

1 favourite 0 retweets

In reply to @drvinceknight

@drvinceknight I think the best thing about Paw Patrol is how consistently they forgive Mayor Humdinger

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In reply to @howie_hua

@howie_hua I don't dare look up when that song came out to see if only old people will get this

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In reply to @AnonMathMom

@AnonMathMom Yesterday my brother in law dropped the firstborn's massive new Christmas lego set and it shattered on the floor. Nobody stepped on any bricks, but he was certainly treading on eggshells for the rest of the day!

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In reply to @Pyfagorass

@Pyfagorass that is glorious!

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In reply to @Pyfagorass

@Pyfagorass that's very kind, but no need

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A colleague has misspelt their own name when creating an account on a system I'm in charge of, and not noticed for several years.
Should I fix it? Now I've seen it I can't stop thinking about it

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In reply to @Pyfagorass

@Pyfagorass you have my blessing to call this "isthisprime.com: the scroll"

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In reply to @stecks

@stecks @clopenmic that pun!

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In reply to @sangwinc

@sangwinc nothing. It's so tempting!

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I'm writing documentation for my diagram-drawing tools today, so this tweet by @wtgowers inspired me to draw the diagram he's talking about!

twitter.com/wtgowers/statu…

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In reply to @christianp

@wtgowers here's the Numbas Eukleides code I wrote to produce the diagram: gist.github.com/christianp/278…
It's too complicated because I decided to get all the coords by rotation, instead of just typing them in, and the JME Eukleides extension could do with more convenient syntax

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA @yudhi_bunjamin @howie_hua and I played another game, but I think we tidied up our pieces afterwards like nice boys 😁
I like Imparium - it felt like a less drudgy version of Boxes.
Thanks for hosting the session - it was nice to finally talk to you live!

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In reply to @d_yellowlees

@d_yellowlees It might just be because I'm really clumsy, but I've never got on with the "sea of post it's" approach. I typically stick a load of stuff on an A4 sheet, and draw arrows for the order I think they should go in

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In reply to @DavidKButlerUoA

@DavidKButlerUoA So just stop saying things are easy! Simple!

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In reply to @kyledevans

@kyledevans I got the same. Do some schools do prep for maths challenge? We were just given it one day. (or I didn't realise when we did the prep!)

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Thinking today about how I rely on the frequent, accurate stats on covid cases to determine what's safe to do, and how the government could easily make them less frequent and less accurate

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humanity's working title was "Technical Debt: The Species"

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In reply to @christianp

"We'll think about bloodflow later, the spec says we need massive brains"

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In reply to @christianp

"No time to think about back pain now, Sales says we need huge mammaries"

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In reply to @christianp

"Tell engineering they'll just have to compromise on childbirth, head office wants bipedal motion"

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In reply to @christianp

"We need to cover large distances on flat ground, so just swing that big toe round to the front with the others"

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Flashback to 2011, shortly before I quit my PhD.

In fact, it was the Grzegorczyk hierarchy stuff that was the final straw

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In reply to @christianp

Some people made the very good point that your bio should say what you tweet about, so I've had a go at that. Now it goes:

"Disabled mathematician & koala fan. I make computers do maths, overthink notation, blog at @aperiodical. Notably terse.
mathstodon.xyz/@christianp. He/him"

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In reply to @christianp

(I really do struggle to use words earnestly)

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At @DavidKButlerUoA's One Hundred Factorial last week, I played a nice space-claiming game.
I was inspired to make a computery version. I've called it "This island is big enough for the both of us"
Play at somethingorotherwhatever.com/this-island-is…

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In reply to @DrCaroSummers

@DrCaroSummers this might not be news to you, but just in case: my life has changed since I found out about the compose key on linux. It's so much easier than alt codes! e.g. ö is
Compose " o
Apparently macs do something similar

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In reply to @christianp

@DavidKButlerUoA the source code is at github.com/christianp/thi… if you're interested

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In reply to @harald_bohr

@harald_bohr @mathhombre it absolutely is! The first example I thought of is viewers for the Mandelbrot set; here's the first one that Google returned: observablehq.com/@jashkenas/the…

1 favourite 1 retweet

Do I know any mathematicians who use British Sign Language?
I'd like to put together an event with some training on basic BSL for maths, and maybe one or two talks about doing maths while Deaf/deaf.

1 favourite 1 retweet

In reply to @christianp

@DrJessBoland you did some nice videos of mathsy/sciencey signs a few years ago; are you able to do some training or give a talk to do with maths BSL, or can you recommend someone else?

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In reply to @christianp

@DrJessBoland (I have a budget, obv)

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I've realised that I don't know what this shape looks like. I will tweet first, make a guess, then do some simulations.

You launch a projectile into the air. If you only know the launch angle and speed roughly, where could it be after T seconds?

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In reply to @christianp

My thoughts:

T=0: at the origin.
T→∞: An interval around a point on the ground.
Other T: something like an ellipse, maybe squashed against the ground. I don't think it has to be convex.

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In reply to @BernhardWerner

@BernhardWerner yes!

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In reply to @christianp

I've made a @geogebra worksheet. Point A is the position of the projectile, and B controls the launch angle and speed. I've turned on trace for both.
When B traces a square, A traces a windscreen wiper shape. Makes sense!

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In reply to @christianp

Here's the geogebra worksheet: geogebra.org/calculator/gfg…

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In reply to @christianp

I couldn't be bothered to work out how to repeat the calculation over many points in geogebra, so here's a video from a different tool, showing a smattering of points over time. I wasn't sure before seeing this whether the shape changes before and after the top of the parabola

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In reply to @beefok

@beefok @geogebra I have the equations of motion memorised from the mechanics module at school!

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In reply to @beefok

@beefok @geogebra Or, let's be realistic, from making millions of physicsy games in blitz basic

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In reply to @deafdragongirl

@deafdragongirl @MiaowPR yes, I'd like a qualified person to deliver training, but I specifically want someone with experience of maths vocabulary.

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In reply to @maths_kath

@maths_kath @aperiodical cool! Can you remember any of them?

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"OCR offers a Further Maths A Level option ‘Further Pure with Technology’ in which learners can use a computer algebra system, spreadsheets, and graph plotters in the exam"
I need to look this up!!

cambridgeassessment.org.uk/blogs/high-sta…

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In reply to @deafdragongirl

@deafdragongirl @MiaowPR thanks!

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In reply to @MitchKeller

@MitchKeller @aperiodical cool. Is she still working?

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In reply to @MitchKeller

@MitchKeller @aperiodical "hear no evil", eh?

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In reply to @VickyMaths1729

@VickyMaths1729 @aperiodical @ScottishSensory I knew but had forgotten. Thanks!

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I'm having a nice evening looking at the tutorials for @UsePenrose - penrose.gitbook.io/penrose/
It makes a lot more sense than last time I looked at it!

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In reply to @UsePenrose

@UsePenrose is there a way to suggest changes to the gitbook? I think there are a couple of errors in penrose.gitbook.io/penrose/tutori…, maybe using an old version of the dsl grammar?

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In reply to @UsePenrose

@UsePenrose I clicked on the second link, "Penrose tutorial", on github.com/penrose/penros…. What should I be reading instead?

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In reply to @JDHamkins

@JDHamkins @katemath 0: first
1: second
2: twird
3: third

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In reply to @honeypisquared

@honeypisquared Colour coding

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In reply to @christianp

@honeypisquared by which I mean, do less of that! Just realised this was ambiguous!

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In reply to @UsePenrose

@UsePenrose I'm doing that, but what's in that branch doesn't seem to match what's on gitbook. The gitbook version seems to have some typos fixed, so is it newer?

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What's the deal with French academia and 1998-level webpages? The ghost of minitel?

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In reply to @kisonecat

@kisonecat @ShriramKMurthi @_julesh_ can you explain how you use the Canvas API? Just to upload files to the Files area?
I've tried something similar, but I'd love to be able to do something like rsync a local folder with one in Canvas

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A really common trick in video is to show clouds in timelapse, and you can really appreciate how they change over time.

I'd really like to see a (simulated) timelapse of a landscape over decades, so you can see tress popping in and out of existence. Does that exist?

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In reply to @bluecombats

@bluecombats thanks! Lots of popping out, not so much popping in, alas!

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In reply to @kisonecat

@kisonecat @ShriramKMurthi @_julesh_ thanks!
I've got lots of more important things to do at the moment, so... yes, I'll have a go at that now!

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In reply to @pwr2dppl

@pwr2dppl I've noticed very few jokes about script writers in films

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In reply to @kitwallace

@kitwallace that's almost exactly what I had in mind. Thanks!

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ahhh, rats. A confirmed covid case in my daughter's class, the day before my birthday!

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Dreary work tweet alert!

I've written a Python script to synchronise a folder on your PC with a Canvas LMS course's files section.

pypi.org/project/canvas…

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In reply to @christianp

Thanks to @ShriramKMurthi and @kisonecat for nerdsniping me: twitter.com/kisonecat/stat…

This is the first time I've published a Python package on PyPI. It was surprisingly straightforward!

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Outlook: It Sort Of Works™

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In reply to @christianp

video description:
Typing an email:

Some clever person at MS: look, I made it superscript ordinals automatically! 1st place for me!

Me: Cool, my next conference is on the 9th 10th 11th 12th 13th and 14th of June.

Wait...

(10th, 11th, 12th and 13th are not superscripted)

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In reply to @walkymatt

@walkymatt you'd better believe they're superscripted!

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In reply to @htfb

@htfb I'm using the web version. I can believe the desktop version works better

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In reply to @BernhardWerner

@BernhardWerner if you write a SMILES parser, I'd love to see it! Our chemists have been asking for that in Numbas for ages

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In reply to @BernhardWerner

@BernhardWerner I was astonished when I looked at this at just how much of the "standard" nomenclature is proprietary. There are algorithms to work out the structure of a molecule from its IUPAC name, but they're not open

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Dealing with y'a qu'a, faut qu'on attitude again

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In reply to @christianp

@UsePenrose I think I'm starting to get my head round how @UsePenrose works. Here's something like a family tree 🤷

I wonder if you can do any logic in the 'where' clauses; I've felt like I want some NOT and OR ops a few times

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In reply to @UsePenrose

@UsePenrose Is there something like a sameSide(a, b, c) objective, to ensure c isn't between a and b?

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Merry Christiansmas, one and all!
V pleased with this jumper from Mrs L-P

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In reply to @honeypisquared

@honeypisquared @GeeknProud42 Is this talk recorded?

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In reply to @marcoreggiani_

@marcoreggiani_ @honeypisquared @GeeknProud42 OK, thanks

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In reply to @alephJamesA

@alephJamesA nice slides, lovely pictures.
I would remove the word "obvious" from where you've used it

1 favourite 0 retweets

In reply to @benjamindickman

@benjamindickman @arsinoepi @pwr2dppl de Rham-parts

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In reply to @C_J_Smith

@C_J_Smith I watched that one yesterday! Have they just added it to Netflix?

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In reply to @C_J_Smith

@C_J_Smith BRB, putting together a conference proposal, "Offering students an exam paper on a completely different subject to the one taught: one assessment innovation too far?"

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Those mattresses that get delivered with all the air squashed out of them: why don't we have this technology for bread yet?

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In reply to @jjsanderson

@jjsanderson Outrageous levels of self-assembly

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Baby Jake on Cbeebies: someone watched a Cyriak animation and said "my baby would love that!"

5 favourites 1 retweet

In reply to @nthpijots

@nthpijots See twitter.com/christianp/sta…

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In reply to @eduardojdiniz

@eduardojdiniz we don't have Pillsbury here. We have Jus-Rol, which I think is similar, but they only do pastry. I had no idea Pillsbury had tried it with bread!

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In reply to @peterrowlett

@peterrowlett @jjaron Yeah, up until this month they've always arrived the next day for us

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In reply to @NTCouncilTeam

@NTCouncilTeam Snap! I just came downstairs to find my two waving at the bin men.

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In reply to @libraryncl

@nclroblib what a line! If I'd written that I'd put my pen down and go for a victory lap

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Empty brain: not documenting your code.

Full brain: documenting your code after you write

Galaxy brain: documenting code you haven't written yet

(today I am submitting lots of bug reports saying "why does thing mentioned in the docs not actually exist?)

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A fantastic bit of maths writing twitter.com/ToposInstitute…

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In reply to @DavidKButlerUoA

@DavidKButlerUoA It so effectively conveyed the feeling of enjoying doing maths. The analogies are great. It didn't really explain what the object Poly is in a way I can use, but that doesn't matter, because that'd be impossible in such a short piece. I want to look it up now

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Also fantastic in the literal 'this is from a fantasy' sense

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Have introduced the four-year-old to the Wiggles. Was this a mistake

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In reply to @matthras

@matthras I don't know if you know this, but we can't get Peppa Pig in our house, only at grandma's.
It's a mystery 🤷‍♂️

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That feeling when you model compassionate response to a student in an email with a colleague CCed in, and then you see the colleague doing the same in an email to another student 🥰

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WHAT IS THE DEAL with Tories and pigs??

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I'd say 16 months is too young to sarcastically copy your sibling's crying.
#SubtweetingMyKids

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In reply to @honeypisquared

@honeypisquared that's a really good point. Does that symbol appear in the syllabus? I'm not sure which of "careless use" and "inexplicably precise syllabus" I'd go for as the most likely explanation

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got Kier Sptarmigan stuck in my head, can't get it out

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In reply to @christianp

why are the headshots on Labour's shadow cabinet page cropped so weirdly?
labour.org.uk/people/shadow-…

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In reply to @christianp

just looking for a username for a test account to replace Tester Jowell, don't mind me

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In reply to @bbarber_

@bbarber_ Tories can't claim scalps if we haven't got any

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I refuse to believe that this code is running properly first time!
I know that @elmlang ensure it won't compile unless the types match, but I'm doing a lot of angle arithmetic too.
Time to make an offering to St Debug

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In reply to @pwr2dppl

@pwr2dppl That advice: Considering leaving academia? Think about LinkedIn. Now you want to stay in academia. You're welcome.

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I've made a new game, about holding hands.
The hard part: some of these fellas have lots of hands!

JIGGRAPH: somethingorotherwhatever.com/jiggraph/

108 favourites 15 retweets

In reply to @roger_mansuy

@roger_mansuy @mickaellaunay @3615Robin @LaureCornu1 @Apmep_Nat @Alice8076 @FibreTigre @InHenriPoincare @CultureMath @MMI_lyon @LeMyriogon @Klomoon @litteramath @LesMathsEnScene Est-ce que vouz avez vu la présentation de @jamesgrime sur une version anglaise de ce livre? Le diaporama est à mathsjam.com/assets/talks/2…

1 favourite 0 retweets

Compression stockings, day 1: I can't believe what a difference they've made! I haven't lost my vision once, and this morning I hoovered both upstairs and down without collapsing.
Can't shake the feeling I'm in Rocky Horror though

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In reply to @b0rk

@b0rk I do this too! Apart from anything else, I decided the headache of learning how to set up nginx is much less than the headache of moving all my stuff if github pages or netlify or whatever become unusable

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In reply to @christianp

@b0rk I think there's an unfinished sentence in the rsync section: " I think this was because ."

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In reply to @b0rk

@b0rk thanks! And that sentence now explains why I hadn't seen the same problem - I wondered if I was doing rsync wrong

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I want this on a tea towel! twitter.com/GaloAndStuff/s…

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Let's do this again!
Going to sleep now - will reply with fun maths in the morning twitter.com/christianp/sta…

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Water,
Life-giving water!

Miracle molecule,
Medium of all that matters

Seeping through my ceiling

Helping mould grow

Annoying me

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In reply to @jjsanderson

@jjsanderson it's all right, a chap with a telescopic scrubbing brush and a tub of biocide is coming to sort it out

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In reply to @lunasorcery

@lunasorcery I had this but with a github profile recently. Took me a minute to put the pieces together, but I was happy for her when I did!

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why is the Santander android banking app 677mb??? The Nationwide app is 52mb

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK well, having kids does drastically change your life, but it's defo true that some people use it inappropriately as a source of authority in arguments

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In reply to @PaulsPrattle

@PaulsPrattle the vast majority is "user data". Maybe it's saving statement PDFs every month, even if I don't look at them?

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In reply to @PaulsPrattle

@PaulsPrattle yeah, in fact I don't think it's that - I went into the app, and when I clicked to view statements, it opened a separate browser

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can't think of a more succinct way of doing this

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In reply to @howie_hua

@howie_hua It's possible to go off a person, you know

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In reply to @DavidKButlerUoA

@DavidKButlerUoA When you're finished, I'd like to know if this is the point at which you felt confident you're on the path to the solution

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Interesting! Maybe I got lucky with my line of thought then.
Since those triangles are right-angled and congruent, I thought you can make a rectangle from two of them. From there I was confident I'd have everything I needed after writing down the rectangle's area

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Sides of the rectangle are cos(x) and sin(x).
Its area is 1/4.
So sin(x)cos(x) =1/4.
Doible angle formula: sin(2x)=2sin(x)cos(x)
So sin(2x)=1/2.
Used a calculator to find x=15°

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In reply to @christianp

@DavidKButlerUoA Bits I used from memory:
When you have right-angled triangles, try making a whole rectangle.
sin(x)cos(x) has something to do with double angle formulas (had to look up if it was sin or cos)
Couldn't be bothered to work out arcsin(1/2), so used a calculator

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Exactly!

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In reply to @DrCaroSummers

@DrCaroSummers "Delivering a baby" SCORM package in the staff VLE

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Going through my old stuff. Apparently in 2008 I was making this sort of rubbish.
somethingorotherwhatever.com/cards/

2 favourites 0 retweets

In reply to @Benjaming_G

@Benjaming_G @georgemsavva mrange

3 favourites 0 retweets

In reply to @standupmaths

@standupmaths youtube.com/watch?v=r6FVk2…

2 favourites 0 retweets

In reply to @htfb

@htfb @Nadine_Writes what's the ratio for all Black pupils?

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February

This morning's coding practice was making a game where you have to FIND DRACULA.
somethingorotherwhatever.com/find-dracula/
(don't call it a Wordle clone)

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People who have run conferences over gather.town: what kind of info and preparation do you give attendees beforehand?

0 favourites 1 retweet

In reply to @moebio

@moebio is each step a different kind of shuffle?

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In reply to @heavymetalmaths

@heavymetalmaths would you have a moment to show me them some time?

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston congratulations!

1 favourite 0 retweets

In reply to @Smylers2

@Smylers2 there's so much stuff that I've watched back and realised: pop culture in the 90s was Extremely Horny

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In reply to @christianp

does this look reasonable? (sorry, screen reader users - skip now!)
🦇🚪🧛🚪🚪
🚪⚰️🚪🧛🦇
🦇🚪🧛⚰️🚪
🦇⚰️🚪🧛🚪
🚪⚰️🚪🚪⚰️

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Has anyone run this through Turnitin? twitter.com/AdamBienkov/st…

9 favourites 3 retweets

In reply to @TyneTom

@TyneTom @NTyneLivingSt Oh yes, I used to dread crossing there when I lived in tynemouth!

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Fascinating! twitter.com/abbott567/stat…

3 favourites 2 retweets

🤞 hexadecimal episode twitter.com/numberblocks/s…

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In reply to @honeypisquared

@honeypisquared I can't see the colours, but those are lovely icons!

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In reply to @honeypisquared

@honeypisquared don't be sorry - they all look different, and I can read all the text, so they work for me!

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This conference registration form's single-line "accessibility requirements" field is optimistic!
Maybe I'll write a document and just put a link to it.

4 favourites 0 retweets

In reply to @zithral

@zithral Can you make table of which tin each mix will go into? I'm colourblind so never learnt!

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In reply to @zithral

@zithral The model I imagine is: colours are triples (r, y, b), with white = (1,1,1). Mixing colours is taking the minimum of each component.
Is that what you thought?

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rang a call centre and got through instantly. Unprecedented! I wasn't ready to actually talk!

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In reply to @jtombs

@jtombs Should've thought of that!

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In reply to @jjsanderson

@jjsanderson Oh no! Hope that's the extent of it.
Might be joining you soon - PLP has a persistent cough so we're waiting for a PCR result...

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In reply to @jjsanderson

@jjsanderson @gwydionuk We've had a bucket of negative LFTs. Either we're doing it wrong, or we all have sneaky nasal tracts

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The pair of curves that you draw to show a shape has a hole needs a name. Has anyone given it a name?

4 favourites 2 retweets

In reply to @SamHartburn

@SamHartburn I can see it, but I don't like it

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In reply to @honeypisquared

@honeypisquared @SamHartburn Ooh, better

1 favourite 0 retweets

In reply to @mathforge

@mathforge It'll rile pedants, but I'd be happy to call it 'a genus'.
As in, "let's draw a genus here, and a genus over there"

2 favourites 0 retweets

In reply to @KangarooPhysics

@KangarooPhysics @AllanMcRobie And...?

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In reply to @icecolbeveridge

@icecolbeveridge @k_houston_math BIG fan of this

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In reply to @christianp

OK, I've had some good suggestions. Let's pick one.
This is:

3 favourites 1 retweet

Don't you just hate it when you have a piece left over at the end?
somethingorotherwhatever.com/jiggraph/

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In reply to @christianp

The Eyes have it!
This shape is an Eye of Torus.

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In reply to @jasonemiller

@jasonemiller That's interesting, thanks!

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In reply to @eduardojdiniz

@eduardojdiniz Yes, I can see that!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA What's yours? Mine was ODEs

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"1 garlic clove, halved"

Whoah, slow down there, cowboy!

2 favourites 1 retweet

In reply to @zithral

@zithral @DavidKButlerUoA I think the numbering normally goes in the order the matches happen, so \1 is the first group matched, \2 is the second, and so on

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In reply to @christianp

@zithral @DavidKButlerUoA so if the input is "hello hell" and the regex is "(he)(l+)o \1\2", then \1 matches the other instance of "he" and \2 matches the other instance of "ll"

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @zithral I have seen that somewhere, but can't think where!
When/if you come back to this, one thing that helped me learn was looking at railroad diagrams, showing the paths a regular expression can take. debuggex.com seems to produce a nice display

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Over the weekend I revamped my personal homepage.
I've tried to collect all the online things I've made - that's over 160 things!
Please have a look: somethingorotherwhatever.com

12 favourites 3 retweets

I love this short exact banana split sequence on @Jaredongaro's staff page!
profiles.uonbi.ac.ke/ongaro

5 favourites 2 retweets

In reply to @JanvierUK

@JanvierUK they might have run out again. Took me ages to get any in 2020

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Why is it that I can trim a video in basically no time on my phone, but trimming a video on my desktop requires either spending 10 minutes re-rendering, or can only trim on keyframes?
I'm on linux, and I've tried kdenlive and avidemux. Is there a tool I'm missing?

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In reply to @christianp

Feels like something ffmpeg should be able to do

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In reply to @henryseg

@henryseg Yeah, I did think about that, but I'm surprised desktop GPUs aren't even quicker

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Since John found this, it reminds me of a question about it: following the rules of this game, is it true that any division of the square into rectangles can be draggy-boxed back to the whole square? twitter.com/mathhombre/sta…

3 favourites 1 retweet

In reply to @Skippa23

@Skippa23 I just loaded it on my phone and realised that I never added support for touch screens! So if you're on a phone too, that'll be why

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In reply to @christianp

@Skippa23 now fixed!

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In reply to @christianp

and now I've played the game again, I have an answer to my question. I won't put it here, in case anyone else wants to think about it

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In reply to @htfb

@htfb literally just adding in touch screen support now. Try reloading, and tell me if it's any better?

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In reply to @christianp

you: python lists are zero-indexed

me:

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In reply to @christianp

@NclNumbas Well, big shot, if seq[0] gets the first item in the list, why doesn't seq[-0] get the last item?

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In reply to @christianp

@NclNumbas having a totally normal one

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In reply to @pwr2dppl

@pwr2dppl it's a song by Des'ree

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In reply to @htfb

@htfb yeah, it needs a bigger margin of error for touches.

That wikipedia page doesn't give an explicit answer either way, does it?
I have a v simple example in mind

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In reply to @htfb

@htfb yep

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In reply to @htfb

@htfb next question: given an initial division which can be reduced to the whole square, is it possible to merge rectangles so that you get stuck?
Again, I have a simple example in mind

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In reply to @TimHarford

@TimHarford I think you have to declare your colour model before that question can be answered. You could justify saying the average would be white, or grey, or even black, depending on how you combine colours

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In reply to @Vittori61412811

@Vittori61412811 @glitch shouldn't be! Did something look wrong?

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In reply to @NewcastleUniUCU

@NewcastleUniUCU what about the other three fights? Is next week just about pensions?

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In reply to @NewcastleUniUCU

@NewcastleUniUCU lovely, thanks

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Heed the Scrambled Egg of Safety! twitter.com/john_overholt/…

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bold of the internal conference organisers to send out an email today asking for confirmation of something by the 18th, when all the days in between are strike days

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In reply to @josstified

@josstified I've got 'esoteric' and 'erotic' the wrong way round more times than I enjoy

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In reply to @christianp

Now 211 things, after I added more git repos to do with my work, and some of my favourite bits of writing

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In reply to @pwr2dppl

@pwr2dppl This feels like another instance of "America: we're a classless society (because the working class aren't people)"

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In reply to @dandersod

@dandersod That is beautiful!

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"If mathematical constants are so great, how come there's no mathematical constants II?"

cambridge.org/gb/academic/su…

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Does anyone know a good quote about 'stamp-collecting' in mathematics - the idea of churning out examples or theorems for completeness, rather than seeing some greater structure?

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In reply to @christianp

ah, I might have been thinking of this, usually attributed to Ernest Rutherford: "All science is either physics or stamp collecting."

quoteinvestigator.com/2015/05/08/sta…

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In reply to @benorlin

@benorlin Ouija boards around Hanover start spelling out M O N A D S

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In reply to @evelynjlamb

@evelynjlamb @mathzorro @pwr2dppl I don't know how you have the patience for it! I'm 38 guesses in and I've decided I don't know any more words

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In reply to @pwr2dppl

@pwr2dppl @evelynjlamb @mathzorro I found my self guessing 'cry, weep, crying, tears' and felt it was time to stop

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In reply to @evelynjlamb

@evelynjlamb @pwr2dppl @mathzorro I would totally just press the "I give up" button

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In reply to @NewcastleUniUCU

@NewcastleUniUCU hang on, I think I know this one: if you increase the race pay gap while stood on an escalator, it cancels out

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In reply to @karenshancock

@karenshancock thanks for telling me. It looks like I didn't fix a version of a library, and the latest version broke something.
It's working again now

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In reply to @JimPropp

@JimPropp I have a suspicion that
x^2+y^2+2xy+(1)(1)
would also work

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In reply to @ZenoRogue

@ZenoRogue @JimPropp indeed

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In reply to @jjaron

@jjaron we all had runny noses for a couple of days after storm arwen up here. I think it whips up dust

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In reply to @christianp

@ZenoRogue @JimPropp to be clear: my suspicion is that they're looking for the substring ")(" as a proxy for "this expression is a product"
You'd be surprised how many e-assessment systems fall back on string-matching tricks

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it's amazing how easy it is to set up a server with websockets on @glitch. Saved me a lot of time fiddling with my own server!

Anyway, I invented a word game in school and I spent last week making a nice online version of it, at nulac.glitch.me

Does anyone fancy a game?

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In reply to @christianp

@glitch whoever I'm playing against: I'm sorry

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WHAT twitter.com/mikebray303/st…

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In reply to @christianp

@glitch they pulled it back! Maybe I should have disputed "YORKSHIRETERRIER"

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In reply to @IRainsby

@IRainsby what about recycling?

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In reply to @Raspberry_Pi

@Raspberry_Pi time to resurrect checkmyworking.com/misc/clever-ha…

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In reply to @icecolbeveridge

@icecolbeveridge @glitch weird! I hadn't tested on Chrome, but I have just now and it looks alright, except for the colours. I'm having lunch now, so will look later. Can you look at the developer console?

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Back at work for a couple of days in the middle of #UCUStrike. I've been feeling guilty about not being more vocal, because I can't picket for long.
136 unread emails. At least it seems I've gummed up the gears of academia a little bit.

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In reply to @christianp

Of course, many of those unread emails are from people who decided to undermine the strike by continuing to work.

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In reply to @christianp

somehow back on my animations nonsense again, prompted by some puzzles posted by @blatherwick_sam
As a screensaver: rectangle-pals.glitch.me

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In reply to @stecks

@stecks @blatherwick_sam oh yikes, me too!

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In reply to @stecks

@stecks @blatherwick_sam yeah, and I meant to add in some weighting to it so the expected number of rectangles is finite

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In reply to @blatherwick_sam

@blatherwick_sam @DavidKButlerUoA No, it wouldn't! I was hoping someone would notice that

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"Subtract a from b" = "b - a"

"Divide a by b" = "a ÷ b"

Is there a phrase equivalent to "b ÷ a" where a occurs before b?

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In reply to @Cshearer41

@Cshearer41 I've never understood what that means! Thanks!

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In reply to @mathsjem

@mathsjem so "divide three into six" gives 2?

I've never understood "divide into" so avoid it. Is "divide six into threes" a thing, and does it give 2?

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In reply to @jedediyah

@jedediyah is there a way of saying that as a statement, instead of a question?

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POV: you're cooking a Sunday roast and your shoulder decides not to be in its socket any more.

AAAAAAAAAAAAAAAAAAAAAAAA!!!

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In reply to @jjsanderson

@jjsanderson It didn't really go all the way out, I just needed to push it against something for a bit until it felt firmer

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In reply to @blatherwick_sam

@blatherwick_sam I'm wary of being all y'a qu'a fau qu'on, but can't you just say "symmetry" and twiddle your mustaches?

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @blatherwick_sam A really useful French phrase for the kind of person who always say "you just have to..."
Because it's slang there are a million ways of spelling it.
fr.m.wiktionary.org/wiki/yakafokon

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @blatherwick_sam Nope!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA @blatherwick_sam I didn't expect you to know it, and I hoped you'd ask. It's really useful!
An English equivalent would be something like a 'yahaveta' or 'yasimply'

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In reply to @Andrew_Taylor

@Andrew_Taylor Back of the class, Taylor

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Is this the worst integer sequence? oeis.org/A133376

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March

New π maths just dropped, @standupmaths twitter.com/mathGMb/status…

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A backwards bourbon! (a bournob?)

Is there an old wife around who can tell me what this augurs?

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Not sure how to feel about the fact that the rate at which I make things, as measured by my homepage, has been pretty much constant since 2011

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In reply to @stecks

@stecks That wasn't an 'if and only if', so there's still a chance you're happy

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In reply to @zithral

@zithral I think 125 = 5³ is the smallest integer with an abbreviation:
Smallest such integer must have at least 3 digits. Abbreviations must have at least 2 digits. All products and squares of two digits < 100. All higher powers of 2,3,4 are > 125

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In reply to @christianp

@zithral Is this question related to Kolmogorov complexity?

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In reply to @htfb

@htfb @zithral This has rung a faint bell about how you can make everything from a single 4, with repeated factorials, roots, and rounding

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Suppose you have all the numbers, but the only thing you know how to do with them is

m(x, y, z) = min(x+y, x+z, y+z)

Given any x and y, can you produce x+y using only m?

#IHaveAnAnswer

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In reply to @christianp

(no, infinity is not a number you can put into m)

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In reply to @langtoneagle

@langtoneagle Yes, you can name any constant

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In reply to @christianp

@langtoneagle Maybe the most straightforward way of stating that constraint is: you have to commit to which other numbers you're going to use before I give you x and y

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In reply to @yet_so_far

@yet_so_far After how many steps?

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In reply to @mscroggs

@mscroggs Nice! And what if you can only check for equality with x or y? Or can't check for equality at all?

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In reply to @yet_so_far

@yet_so_far In order to know when to stop, you have to know how to compare two numbers. If you can't do that, is it still possible?

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In reply to @yet_so_far

@yet_so_far @virtualcourtney I deliberately left it vague! I like how there are different answers for different sets of numbers

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I have half a joke in my head, but I can't remember the rest of it.
It's something like: <famous mathematician X> said they could tell me all the digits of pi. It went:
3 <wait a second>, 1 <wait 2 seconds>, 4 <wait 4 seconds>, ...

Does that ring any bells with anyone?

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In reply to @logopetria

@logopetria Yes! That's it!

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In reply to @icecolbeveridge

@icecolbeveridge oh yes, I think I've heard that one too.
But $1 after 1 day, another dollar two days later, then three days later, ... would avoid paying impossibly small amounts

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In reply to @robinhouston

@robinhouston @logopetria aha, that's precisely what I was thinking of. Thanks!

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In reply to @PyViv

@PyViv C'est pareil ici, sauf Encanto au lieu de Peppa Pig. Hier c'était la fille, aujourd'hui c'est la bébé aussi.

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In reply to @ftp_alun

@ftp_alun @robinhouston @logopetria I think the point that finitists make is that there's a difference between "can" and "will"

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In reply to @robinhouston

@robinhouston @vigornian why 'arkan'?

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In reply to @robinhouston

@robinhouston @vigornian google only turns up a Serbian war criminal, so I wouldn't be too happy glibly using that

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In reply to @JanvierUK

@JanvierUK That's almost as cringe as the priapic ones the tories came up with for each other

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Just got Doctored again, in the programme of an internal conference. Added to the file for my PhD-by-reputation submission.

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In reply to @DavidKButlerUoA

@DavidKButlerUoA You've certainly spent longer thinking about it than I did! Thanks for having a go.
I hope you have less tough days ahead of you

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In reply to @zithral

@zithral or, you could repeatedly pick from a range that might contain non-abbreviable numbers, until you get one that is abbreviable

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In reply to @DavidKButlerUoA

@DavidKButlerUoA You're not going to like it! I'm pretty sure you need some way of comparing numbers or testing for equality.
The answer I had starts with m(x, y, 0) and either give you min(x, y) or x+y. So if you can test for equality you can pick one of m(x, y, x), m(x, y, y) or m(x, y, 0)

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Sorry!

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> list.osrt()
TypeError: osrt is not a function

it feels morally right that every anagram of 'sort' should be valid

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In reply to @yet_so_far

@yet_so_far Thanks to the gender calendar gap, women's years only have 330 days

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In reply to @GreyAlien

@GreyAlien Was that only 2004? I remember it well!

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In reply to @DavidKButlerUoA

@DavidKButlerUoA It must be terrifying writing out equations for students when you're their maths lecturer

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Saw a student type `sqrt^3(x)` for the cube root of x.
I don't think there's a world in which that's OK, but I can see where they came from. Fascinating!

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In reply to @apgox

@apgox indeed. I'd be surprised if this student knew TeX, and the TeX command is pretty hard to justify as well!

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In reply to @ZenoRogue

@ZenoRogue @apgox Aha! Thanks

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In reply to @d_yellowlees

@d_yellowlees you could interpret point 1 as "get their attention at all costs", which I think is wrong. And "they" are not homogeneous - I'm happy with some people in attendance not paying attention to my talk

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Not even 6am and both children have had double breakfast. It's going to be a long day!

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In reply to @christianp

Day 4 of today: were watching Bavarian bierhall music on YouTube

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In reply to @jjsanderson

@jjsanderson Afternoon

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In reply to @DanielColquitt

@DanielColquitt I hope the next tweet in this thread has you troubleshooting the problem from a safe distance down the street

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This makes me wonder: I've seen a list showing that printer ink is the most expensive thing per unit volume, so what's the most expensive thing per unit time?
My first guess is going to space twitter.com/alisonkiddle/s…

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In reply to @icecolbeveridge

@icecolbeveridge I think to avoid "any number divided by a small number is a huge number", I'd prefer to limit the scope to things that are normally charged per unit of time

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In reply to @christianp

@icecolbeveridge but if we're going with "dropping an iPad", I raise you "shooting a cruise missile"

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The eldest has opened a pretend café in the bath (lovely)
You have to order online (🙄)
Some things are out of stock (she's been listening, then)
Now I'm stuck in a circular conversation about undelivered soup with the AI chatbot (!)

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Before I lose a day wrangling with LaTeX: does anyone have an example of putting 2×3 cards on a single side of A4?
Maybe Beamer could do this without much effort? Each card will just have a line of text on it, and nothing else.

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In reply to @BlindMath

@BlindMath I'll have a look, thanks!

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In reply to @BlindMath

@BlindMath I want to lay out some cards to print and then cut out

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In reply to @pkrautz

@pkrautz it is not. That's a good idea, thanks! I thought of SVG first, but laying out text in SVG is a knacker

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Maths, and the world mathematical year 2000 posters, are for ever.

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In reply to @apgox

@apgox thanks!

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I'm in my office for only the second time since lockdown, and this is still in my wall.
Hopefully we can run it again this year!

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In reply to @christianp

This poster is now older than almost all of our undergrads

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In reply to @honeypisquared

@honeypisquared @EllieRobinsonGB I don't know why but I suddenly feel like singing la marseillaise

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In reply to @mscroggs

@mscroggs I've got something going in HTML, thanks

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In reply to @hnodrog

@hnodrog If you mean things measured in units of (volume × time), maybe "keeping a litre of air in orbit"?

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In reply to @christianp

@hnodrog Or something to do with whatever fusion reactors do with their insides

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In reply to @christianp

@hnodrog Oh no, those are both (volume ÷ time)

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In reply to @Kit_Yates_Maths

@Kit_Yates_Maths They should call the news the derivatives - it only reports on changes

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In reply to @maddiemoate

@maddiemoate PL-P has recently discovered "Do You Know?" She keeps asking how things are made, and then asking to see if Maddie can tell us. She's drawn this picture of you and asked me to send it to you

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Food critics: "What if I could be hungry... as a job??"

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Happy π day!
I've finally made myself a compose-key shortcut for π so I can type it easily.

I added this line to the bottom of my ~/.XCompose file:

<Multi_key> <p> <i> : "π"

(how to turn on the compose key on Ubuntu: help.ubuntu.com/community/Comp…)

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Conjecture: each day in March is special, in a different way of writing dates.

MAR10: Mario day
12/3: Counting day??
3/14: π day

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In reply to @christianp

Oh! I had wondered about all the <dead_greek> entries in .XCompose.
It turns out I can map a key to produce <dead_greek>, and type any Greek letter easily.

I mapped the "menu" key next to my right Ctrl:

xmodmap -e 'keycode 135 = dead_greek'

Then <dead_greek> <p> gets π

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In reply to @lunasorcery

@lunasorcery brings a new meaning to "wet-look trousers"

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In reply to @christianp

update: I have just accidentally typed Τ, which is not the letter T. It's capital tau. Which is visually indistinguishable from latin T

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I'm in @standupmaths's π day video as part of the team failing to reproduce local hero William Shanks's by-hand approximation of π: youtube.com/watch?v=dtiLxL…

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In reply to @two_star

@two_star interesting! Can I see your .XCompose?

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In reply to @k_houston_math

@k_houston_math @standupmaths I mean, it took Shanks his entire life, so...

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In reply to @two_star

@two_star Ahh, I see what you mean now

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Here are some sequences of numbers that I have generated. Can you spot a link between them?

1,2,3,5,8,13
1,2,5,12,29,70
1,2,21,212,2141,21622

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In reply to @christianp

oh, #IHaveAnAnswer

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In reply to @robinhouston

@robinhouston exactly!

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In reply to @christianp

@standupmaths and following that Herculean effort, I spent some #UCUStrike days implementing the streaming digits algorithm I talk about in that video, in my calculator.
It turns out it's called constructive real arithmetic, and your android calculator already does it: twitter.com/aperiodical/st…

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In reply to @NewcastleUniUCU

@NewcastleUniUCU The university, in its majestic equality, can pile an unsustainable workload on any employee regardless of his/her/their pronouns

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In reply to @miclugo

@miclugo *waves from 55°N*

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Wordle and p-adic norms. Two great tastes that taste weird together? twitter.com/PyViv/status/1…

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This is valid R, assigning the value 3 to both a and b:

a <- 3 -> b

This is not valid R:
5 -> a <- 1

It gives:
Error in (a <- 5) <- 1 : could not find function "<-<-"

What is R doing here?

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What's the maximum number of devices continually streaming shows off Netflix so that it's possible no show will be streamed more than once in a 24 hour period?

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In reply to @lgebrah

@algebrandis tell me more

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In reply to @icecolbeveridge

@icecolbeveridge @standupmaths How would the binomial expansion go? Is that reciprocal easy?

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In reply to @icecolbeveridge

@icecolbeveridge @standupmaths So it's reduced to finding powers of 2 and 11 and multiplying those. Well, 1/239 recurs after 7 digits (thanks reciprocals-list.glitch.me), so I don't think the binomial method will ever be quicker than long division

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In reply to @LongFormMath

@LongFormMath You've inspired me to make a thing that actually does this: A Tale of log(2) Cities
a-tale-of-log-2-cities.glitch.me

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Found this photo I took in 2017. I like it!

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I miss the days when getting up at 5am was a rarity

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Bravo to the people who put kids' videos on YouTube named with nonsense string of letters, so they come up when your baby gets hold of the Google search bar.

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I've made a new game: Prime Run.
From a randomly-chosen starting number, can you get to the target by repeatedly adding or subtracting prime factors of your number?

isthisprime.com/game2/

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"Why is this O(N⁴) algorithm taking so long?!" - me, apparently with cheese for brains

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Happy Sunday to this absolute bargain

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In reply to @christianp

The plot thickens: doing the O(N³) algorithm N times is drastically quicker.

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I've just realised I still consider the way my left elbow moves as 'unusual', after it changed when I was like 12 twitter.com/OdyO11/status/…

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In reply to @jjsanderson

@jjsanderson nope! I think my first go was just more terrible than I expected

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In reply to @jjsanderson

@jjsanderson happy birthday! May there be fewer plagues in the next 50 years

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In reply to @LONMathsJam

@LONMathsJam If it was down before, it's back now

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In reply to @pwr2dppl

@pwr2dppl And also how can you understand the words 'empire' and 'royal family' and not see how the two are linked?

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In reply to @LONMathsJam

@LONMathsJam downforeveryoneorjustme.com/mathsjam.com says it's up, and I can load it

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In reply to @LONMathsJam

@LONMathsJam maybe a DNS problem? It's @standupmaths's server, so I can't do anything

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In reply to @wtgowers

@wtgowers I really appreciate the uncomplicated notation you use, like writing (0,0) for the origin instead of vector 0, which it felt like you were initially going to go for.
Is that a conscious decision to make it easier to follow along, or is it for your benefit too, or just a habit?

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In reply to @Lourdes4eva

@Lourdes4eva @BenFordhamLive @stoker_aj @ScottMorrisonMP That's not me. Please delete this tweet

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Welp, I've finally got covid.

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In reply to @JanvierUK

@JanvierUK yeah, at least I can be more sure that I hadn't had it before now. I was starting to wonder if I'd just not noticed it!
Are you starting to feel better?

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In reply to @christianp

I've just realised it's two years to the day since the first UK lockdown was announced

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In reply to @GreyAlien

@GreyAlien yeah, I think my last day in the office was a week or so before the announcement. I suppose I should be pleased I've avoided it this long, but it shouldn't have been inevitable that I'd get it!

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In reply to @GreyAlien

@GreyAlien almost definitely my daughter's nursery.

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In reply to @JanvierUK

@JanvierUK my chest doesn't feel great, but nothing too bad so far. Mild cold symptoms - bit of a runny nose and a headache, gunky ears

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In reply to @pippinsboss

@pippinsboss Commiserations! Best of luck to you

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In reply to @samholloway

@samholloway I feel blessed by association

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This feels unfair

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Colourblind robots!
I move to make a barcode scanner the mascot of @colourblindorg twitter.com/LordWoolamaloo…

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Unprovoked violence from this survey, putting me in the same age bracket as 49-year-olds

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In reply to @lgebrah

@algebrandis @HaydeeLindo Yes! This is my fave too

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In reply to @christianp

@algebrandis @HaydeeLindo In my head it's the "now you'll never forget what a commutator is" problem

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In reply to @honeypisquared

@honeypisquared I have a sense of déjà-vu, but: "simplify"

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In reply to @christianp

5 days in, and today's LFT is arguably more positive than the first

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In reply to @christianp

I'm as big a fan of 0-indexing as you'll find, but I was amazed to see that the guidance counts the day of your first positive as day 0.
Why, in the biggest public health campaign for decades, would you make an unconventional choice which leads to errors in the wrong direction?!

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2022, and the university's sickness absence "form" is still an Excel worksheet

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In reply to @pippinsboss

@pippinsboss that wily virus!

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In reply to @jjsanderson

@jjsanderson I doubt that!

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In reply to @jamesgrime

@jamesgrime goodness me, that's reasonably priced!

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In reply to @christianp

Day 8, and still positive LFT. The girl and the wife are over it, but the baby and I are apparently on team Covid4Eva

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In reply to @sara_marine

@sara_marine @ncl_LTDS Gyros: Greek
Beef: British
Chicken: Crispy

Noodles of nowhere!

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In reply to @christianp

@sara_marine @ncl_LTDS I'm not saying decolonise Street Kitchen, but I am strongly implying it

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I don't welcome my life insurance provider sending me an email titled "Let's talk about the cost of living".

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April

In reply to @christianp

Day 10: finally negative!!!

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In reply to @gwstagg

@Tegglington Crikey, what an achievement!

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In reply to @ionicasmeets

@ionicasmeets

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Putting together a conference timetable. I really wish I was familiar with an automatic constraint solver

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What's 30% off £7?

How did you work it out?

I noticed a thing about it that is quite pleasing.

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In reply to @MouldS

@MouldS and then subtract the £2.10 from £7?

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In reply to @christianp

just noticed it might look like I wanted 30% _of_ £7.

I want to reduce a price of £7 by 30%

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In reply to @samholloway

@samholloway @MouldS do you think you spotted the thing I did? Was it worth spotting?

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In reply to @icecolbeveridge

@icecolbeveridge @samholloway @MouldS That's what I spotted! Nothing world shaking, but it's always a nice day to see a square number in the wild

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In reply to @AlirezaSoroudi

@AlirezaSoroudi I had 26 talks of varying lengths to fit into a timetable with 10 sessions. Each talk could only take place at certain times, and I wanted to put pre-recorded talks together in the same session.
I did it by hand, in the end

1 favourite 0 retweets

In reply to @TobyBailey

@TobyBailey Yes, it is! Do as much as possible in integers then shift down.
I was translating the source code of the android calculator app recently, and that's how it does it!

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In reply to @joshlaison

@joshlaison This reads like the most complicated answer yet, but each step is a justifiable shortcut. Amazing!

1 favourite 0 retweets

Since there seems to be another wave of people looking for ways to quit twitter, I'll mention that @ColinTheMathmo and I run a mastodon instance for mathematicians at mathstodon.xyz
It has LaTeX math rendering!

4 favourites 1 retweet

In reply to @LongFormMath

@LongFormMath nice!
Needs more wobbly text, though, like somethingorotherwhatever.com/sum-of-3-palin…

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Is there a word for when there's a word for something?

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In reply to @MattPDickinson

@MattPDickinson does that describe a situation where there's a word for the situation?

1 favourite 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA I think the same is true of percentages

1 favourite 0 retweets

In reply to @cs_kaplan

@cs_kaplan @JimPropp @G4GCelebration I'm not taking part physically or virtually, but I know @ColinTheMathmo is helping to facilitate mingling on Gather

3 favourites 1 retweet

That's it! I'm on holiday until the 19th! Whoop!

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"Dear Father Christmas, I'd like a baby who wakes up at 04:00 with a full menu of unsatisfiable needs and a penchant for violence"

- apparently me, 2 years ago

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In reply to @DrCaroSummers

@DrCaroSummers The one where they bring you a new course every three minutes

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In reply to @DrEugeniaCheng

@DrEugeniaCheng I've thought for a long time that hotel booking sites should report the distance to the nearest power outlet from the head of the bed, factoring in any furniture that a charging cable would have to go round

1 favourite 0 retweets

What I'd really like in @geogebra is the ability to pick any length or area and give its value, or pick a point and give its coordinates, then the coordinate system is transformed to suit.

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I thought I was listening to A Podcast of Unnecessary Detail, but I just heard @MouldS say "I won't go into the details".
I've been sold a bill of goods!

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Factorise 17496.
I'd expect it to come up more often than it does

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In reply to @miclugo

@miclugo I think that is exactly the right reaction

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I'm not saying anything as sappy as "I've found my perfect love match", but we'll both add an extra egg to the pan in order to restore parity to the egg box

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James gets it twitter.com/jtombs/status/…

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In reply to @jtombs

@jtombs I think I remember @howie_hua or @JimPropp tweeting about this in the past. We should form a club

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In reply to @howie_hua

@howie_hua @jtombs @JimPropp yes!

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Thinking about the Lousy Labelling puzzle that @DavidKButlerUoA tweeted about. It can't be a coincidence that there are 6 permutations of three boxes, and this table has 6 entries

1 favourite 0 retweets

In reply to @christianp

Can it? Maybe it is!
Anyway, this puzzle also reminds me that derangements - permutations where nothing stays still - are hard to count

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Today's driving game: spot a two-lane palindrome.
For example, I just saw a 17 reg in the inside lane and a 71 in the outside.
(to be clear, I'm not driving)

3 favourites 0 retweets

In reply to @elliewix

@elliewix Me making syntactical shortcuts for common patterns: Yes! YES!!!

Me trying to use the syntactical shortcuts together: Well, this sucks

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Great title, and a game involving derangements!
The paper is on the arXiv at arxiv.org/abs/2006.04805 twitter.com/Plektix/status…

4 favourites 2 retweets

A sequence that is inexplicably not in the OEIS yet:

1,
0,1,1,
2,
0,2,1,
1,1,1,
0,1,2,
3,


Can you guess what it is?

0 favourites 0 retweets

In reply to @lgebrah

@algebrandis @pwr2dppl Those damned Romans

0 favourites 0 retweets

In reply to @LaurenceSatow

@LaurenceSatow Not the next line I was expecting! Can you explain yours?

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In reply to @LaurenceSatow

@LaurenceSatow Yes!

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Go Jetters: "Africa is the second-biggest continent"
On screen: a Mercator+ projection, showing Africa as roughly the size of Greenland

5 favourites 0 retweets

Today, while recovering from my holiday, I'm catching up on the @MathsObjects podcast. It's a good podcast! Who knew?

4 favourites 0 retweets

In reply to @honeypisquared

@honeypisquared a) Let's Call The Whole Thing Off

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Not pictured: the tile picturing all sets not pictured on any tile

8 favourites 2 retweets

In reply to @christianp

@peterrowlett Uh oh. I verbed 'picture' too much and now I don't know what I can verb any more

1 favourite 0 retweets

In reply to @henryseg

@henryseg @MathMechs @willsegerman That is really cool!

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Well obviously the episode I was on was no good, so I'm gratified to hear that other guests did a better job

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In reply to @pwr2dppl

@pwr2dppl My child regularly says things that are obviously false when trying to work out what she wants and it's really annoying and I have no advice

1 favourite 0 retweets

In reply to @Clare_L_Wallace

@Clare_L_Wallace There's a maths trail?! We were just in Derbyshire last week and decided against Crich because it just looked like a smaller Beamish

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I use an OTP app for two-factor authentication for all sorts of things.
It comes up with a new 6-digit code every few seconds.
This question occurred to me: is it possible for it to come up with the same code twice in a row?

1 favourite 0 retweets

In reply to @mountain_ghosts

@mountain_ghosts 6 digits is only a million possibilities, so in absolute terms it must be quite common, even if I personally am unlikely to see it, right?

1 favourite 0 retweets

In reply to @mountain_ghosts

@mountain_ghosts what do I look like, some kind of curious person with both the means and know-how to investigate this? I'll stick to idle speculation on twitter.com thank you

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In reply to @christianp

I found an OTP library to test this, and you do indeed get repeats! You'd expect to repeat the last code once in a million times. Codes normally last 30 seconds, so expect 1 repeat per ~348 days, so just about once a year.
I'm now convinced that someone will see this happen.

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In reply to @icecolbeveridge

@icecolbeveridge I've got about a dozen services in my OTP app, so it actually works!

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In reply to @schrisomalis

@schrisomalis I'd always thought it was a regional thing from some region I'm not familiar with. I hadn't considered that it might just be a global change!

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In reply to @peterrowlett

@peterrowlett Oh, good point - two accounts making the same code at the same time would be easier to notice

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My copy of @benorlin's "Math Games with Bad Drawings" has arrived. The hype is true: it is indeed extremely large.
Toddler who is tall for his age for scale.

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In reply to @christianp

Too big for my bookcase

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In reply to @elinoroberts

@elinoroberts @benorlin they're fab, aren't they? He has so many hand-me-downs from big boy rellies, we decided to get him one nice outfit of his own

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @benorlin Oh, no! Haven't looked in it yet - awaiting the correct lifting gear

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In reply to @DataRevelations

@DataRevelations @benorlin

1 favourite 0 retweets

In reply to @christianp

Now I've had a quick leaf through it: Ben is bad at drawing and very good at writing

1 favourite 0 retweets

In reply to @jjaron

@jjaron Northerners complaining about public transport is tiresome, I know, but: what I'd give for just 10 minutes between trains!

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In reply to @jjaron

@jjaron sounds like you have plenty of good transport options?

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Really frustrating time trying to help a blind colleague access @gather_town, over the phone. He got into the space, but couldn't work out how to grant the site access to his mic.
We'll have to come up with some convoluted pass-through to a normal phone call, I think

1 favourite 0 retweets

In reply to @christianp

@gather_town I think he was using the non-Blink version of Edge. Does anyone know how to enable mic access for a page with keyboard only? We got stuck in the site permissions tab, but couldn't find a drop-down to change from "ask" to "allow"

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In reply to @emilyriehl

@emilyriehl and in French too - you're talking about this, right? people.mpim-bonn.mpg.de/zagier/files/e…

2 favourites 0 retweets

In reply to @MotivicKyle

@MotivicKyle I guess that you already know all the _really_ cool math facts I know. Here's a somewhat-cool one:

If you take a planar graph and put all its vertices on the spine of a book, you will need at most four pages to draw all the edges without intersections: read.somethingorotherwhatever.com/entry/FourPage…

29 favourites 0 retweets

In reply to @MotivicKyle

@MotivicKyle Yeah, that's great. I've been meaning to suggest to @MathsGear that they should put it on a t-shirt

6 favourites 0 retweets

In reply to @ergodictom

@ergodictom @MotivicKyle Which paper?

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Someone tweets about a field of maths I understand: hah that's so cool you can have a like and a RT

Someone tweets about a field of maths I don't understand: How could anyone find that interesting? Glad I'm not that much of a nerd

5 favourites 0 retweets

In reply to @kyledevans

@kyledevans I don't know how it's written, but it's pronounced the same as gif

6 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @divbyzero @benorlin I've heard you have to buy an extra seat for it

4 favourites 0 retweets

In reply to @Smylers2

@Smylers2 That's a tricksy junction! Hope you enjoyed the rest of Northumberland. Did you spend long in Warkworth?

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In reply to @ukor

@ukor looks good on firefox on ubuntu

1 favourite 0 retweets

In reply to @christianp

@ukor and firefox on android too

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett my strategy of listening to episodes six months to a year after release is paying off

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I'd never thought about this, but of course: underneath the massive stone monument must be something to keep it there! twitter.com/CherryBaz/stat…

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If I've achieved nothing else in my life, you can't say I didn't occasionally blog about maths.

Can't believe it's been 10 years. Feels like both forever and no time at all. twitter.com/aperiodical/st…

29 favourites 8 retweets

In reply to @christianp

My favourite bits on The Aperiodical that I was responsible for:

1) It all started with a column on @Samuel_Hansen's blog, The Internet Maths Aperiodical - a collection of random maths stuff I'd seen. I moved those over to aperiodical.com: aperiodical.com/category/colum…

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In reply to @christianp

2) The integer sequence reviews I did with @TweetsofCushing: aperiodical.com/category/colum…. Pure delight! Completely self-indulgent, although it led to..

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In reply to @christianp

.. a @numberphile video!
youtube.com/watch?v=VDD6FD…
We weren't prepared for how seriously people took the competition, and I think fiddling the winner so it'd fit on a trophy might have been the wrong thing to do

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In reply to @christianp

3) The #BigMathOff: aperiodical.com/category/the-b…
Plan: get people to tell me fun maths facts.
Result: I can call @ch_nira The World's Most Interesting Mathematician and everyone else goes along with it?

5 favourites 1 retweet

In reply to @christianp

4) This gif, on the "Riemann hypothesis not proved" post, which continued to get a steady stream of attention for several years.
aperiodical.com/2015/11/rieman…

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In reply to @christianp

5) The Nonsense Formula Disapprove-o-Matic 3000, which would be wheeled into action whenever the words "formula for the perfect ..." appeared in a newspaper.
It hasn't disapproved of anything in a while, but it is ready and waiting aperiodical.com/?s=disapprove-…

2 favourites 0 retweets

In reply to @christianp

6) My post on the lullaby sequence. @aap03102 said "The way Christian tells this is completely charming". I don't think I'll do any better than that.

aperiodical.com/2021/07/a-lull…

3 favourites 0 retweets

In reply to @christianp

I don't have much time to write my own stuff these days, but I hope the site keeps going as a place for keen maths fans to put stuff and have a load of other maths fans see it.

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In reply to @christianp

But those are just the things I did. The thing I'm most proud of is the huge gang of other people who have used the site to share their own fun maths over the years, and the connections it's helped to make.

8 favourites 1 retweet

In reply to @mathhombre

@mathhombre @samjshah aww, thanks!

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In reply to @MickyRich1982

@MickyRich1982 @TWhitleyBay1 My 4-year-old will be overjoyed. She always used to shout "THE CLOCK!!" when we passed it

1 favourite 1 retweet

Start at 0, and count up in 1s until you get to a multiple of 2.
Then count up in 2s until you get to a multiple of 3.
And so on and so on...

Can you spot a pattern?
Can you explain the pattern?

Can you spot another pattern, and can you explain that too?

4 favourites 0 retweets

In reply to @yet_so_far

@yet_so_far "I didn't think the rules would apply to me!" wails supporter of the Rules For Everyone Else Party

1 favourite 0 retweets

In reply to @henryseg

@henryseg @soupie66 Yep. When we had unrestricted registration there were thousands of spammers

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In reply to @soupie66

@soupie66 @ColinTheMathmo @henryseg Can you try again? I've updated the server to the latest version of mastodon, and it shouldn't ask you for a code any more.

4 favourites 0 retweets

In reply to @sibumaiti

@sibumaiti yep, that's the first one I thought of. Can you spot any patterns in the numbers that appear?

1 favourite 0 retweets

In reply to @NickJTaylor

@NickJTaylor @aperiodical Most surprising equation in mathematics:

2 + 4 = 3!

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In reply to @sibumaiti

@sibumaiti Very nice!

0 favourites 0 retweets

In reply to @HypercubicPeg

@HypercubicPeg @johncarlosbaez

2 favourites 0 retweets

In reply to @WBayLabour

@WBayLabour _two_ bookshops on Park View? Be still my beating heart!

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May

In reply to @mscroggs

@mscroggs Noooooooooooo

2 favourites 0 retweets

In reply to @gregeganSF

@gregeganSF Have you seen this? arxiv.org/abs/2203.13870…

14 favourites 1 retweet

In reply to @lunasorcery

@lunasorcery until you said it, I hadn't realised I missed this!

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"I wish I could compile LaTeX in my browser"

*monkey's paw curls a finger*

somethingorotherwhatever.com/pyodide-plaste…

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In reply to @honeypisquared

@honeypisquared I've had to say no to an in-person event in London today, so I'm in the same mood as you. I'm all three of disabled, with childcare responsibilities, and don't want to catch or spread covid, so it was a definite no.
Just do stuff online!

4 favourites 0 retweets

In reply to @mathforge

@mathforge I think mathjax is lenient

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Whattt!!! twitter.com/TyneSnapper/st…

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths @TedG @ProfKinyon @MathsTechnology Yes, that's what I use

3 favourites 0 retweets

In reply to @cox_tom

@cox_tom it looks like the photos are from a documentary: eyeforfilm.co.uk/review/tony-an…
I found that by putting the last image in google image search

0 favourites 0 retweets

In reply to @edsouthall

@edsouthall *taps make-it-rain-bloomberg.glitch.me *

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett My one this morning: "numbers are important, aren't they?"

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My shoulders have been clicking loads lately, and my left shoulder constantly feels like I'm having to expend effort to keep it in place.
Do any other #EhlersDanlos #EDS people do anything to keep your joints together? My wife keeps talking about 'taping it up' - is that a thing?

1 favourite 0 retweets

In reply to @jtombs

@jtombs thanks. A quick google didn't fill me with confidence

0 favourites 0 retweets

In reply to @christianp

@jtombs although the problem is that I'm hypermobile, and find it really hard to tone muscles, so I'm not sure training will do much

0 favourites 0 retweets

In reply to @aperfect

@aperfect My commiserations at this difficult time.

JS build tools: not even once

0 favourites 0 retweets

In reply to @jjaron

@jjaron I've just this minute set up a poll with framadate, and it was completely straightforward: framadate.org/abc/

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees You gave me feedback about how I stand once, but when I explained my disability you retracted it, so 👍 to you

1 favourite 0 retweets

In reply to @NTStreetLife

@NTyneLivingSt Ah, I wondered if we were right at the back, and it looks like we were!

2 favourites 0 retweets

In reply to @christianp

@NTyneLivingSt Massive thanks to everyone who organised it, and for being so patient with us. Little L-P loved it!

2 favourites 0 retweets

New meme format
somethingorotherwhatever.com/didnt-graduate…

2374 favourites 461 retweets

In reply to @samholloway

@samholloway yeah, it should load a webfont, not going to investigate why it doesn't!

6 favourites 0 retweets

In reply to @ashcroftethics

@ashcroftethics @lastpositivist I'll take it!

4 favourites 0 retweets

In reply to @christianp

279 favourites 32 retweets

In reply to @PandaAured

@PandaAured Yep

1 favourite 0 retweets

In reply to @yet_so_far

@yet_so_far real truth

1 favourite 0 retweets

In reply to @d_yellowlees

@d_yellowlees The teeny tiny rijksmuseum outpost is worth wandering past

0 favourites 0 retweets

In reply to @LongFormMath

@LongFormMath yeeeeikes

2 favourites 0 retweets

In reply to @christianp

@LongFormMath by the way, is it still not doing the right font for you? I thought I'd fixed that

1 favourite 0 retweets

In reply to @qhuytran

@qhuytran Ooh good point, I didn't think of that

1 favourite 0 retweets

In reply to @elinoroberts

@elinoroberts You definitely did!

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA I think this attitude is quite common among engineers. I've heard it a few times

2 favourites 0 retweets

In reply to @stephanneuhaus1

@stephanneuhaus1 Interdisciplinary!

1 favourite 0 retweets

In reply to @JonathanHoefler

@JonathanHoefler I'd love to know what caused that! I guess the r and y are a fallback font, so: why would a font have superscript p,a,o,d, but not r or y?

0 favourites 0 retweets

In reply to @christianp

@JonathanHoefler ahh, because r and y are in "spacing modifier letters", but p, a o, d are in "phonetic extensions"!

1 favourite 0 retweets

I've done some thinking about how you type mathematical notation on a mobile device, where you basically only have the alphabet and a couple of punctuation characters available on the keyboard.

Your thoughts, please!

checkmyworking.com/posts/2022/05/…

6 favourites 1 retweet

In reply to @NoeAubinCadot

@NoeAubinCadot I use unicodeit a lot, and I've contributed to the source code!

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Yeah, I had a go

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In reply to @christianp

@peterrowlett Sorry, I should respond more thoughtfully, but most of my attention at the moment is directed on holding my knee and shoulder joints in

1 favourite 0 retweets

Does anyone have any idea what this character is for: ⋳
"element of with vertical bar at end of horizontal stroke (U+22F3)"

2 favourites 1 retweet

In reply to @jimbo_cramer

@jimbo_cramer fao @anildash

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The girl: "why does my friend talk about numbers so much?"
"Because that's one of the things they like. What do you like?"
(without skipping a beat)
"Unicorns and picking my nose"

Credit to her for honesty, I suppose

15 favourites 0 retweets

In reply to @GreyAlien

@GreyAlien that farm house is also incongruously modern!

1 favourite 0 retweets

I solved #OEISle 1 in 5!
✓✓✓✓✗
✓✓✓✓✗
✓✓✓✓✗
✓✓✓✓↔
✓✓✓✓✓
somethingorotherwhatever.com/oeisle

5 favourites 2 retweets

In reply to @christianp

I solved #OEISle 2 in 2!
✗↔↔↔↔
✓✓✓✓✓
somethingorotherwhatever.com/oeisle

3 favourites 0 retweets

In reply to @BernhardWerner

@BernhardWerner Heh! In testing it, I found that _lots_ of sequences start with really boring boring strings like 0,0,0,0,0 or 0,1,2,3,4, but every now and then you get one that's basically unguessable

1 favourite 0 retweets

In reply to @jjaron

@jjaron how does the weight matter?

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In reply to @jjaron

@jjaron but if it's a really expensive small part, then changes in its price will noticeably affect the price of the product

0 favourites 0 retweets

In reply to @BernhardWerner

@BernhardWerner congratulations! Look forward to the days when the feelings of tiredness overtake the feelings of incompetence

2 favourites 0 retweets

In reply to @yet_so_far

@yet_so_far The standalone app is awful. Just loading it in your normal browser is marginally better

1 favourite 0 retweets

In reply to @evelynjlamb

@evelynjlamb It took me two days in Wyoming to believe that the "system" for crossing the road was, in addition to buttons like this, to pick up and wave a going-into-battle-sized red flag.
Somehow when I crossed without a flag it was my fault for getting in the way???

0 favourites 0 retweets

On my blog: Overthinking conference admin
checkmyworking.com/posts/2022/05/…
Some information about how I've automated some of the process of managing a fully-online academic conference.

6 favourites 1 retweet

In reply to @christianp

I solved #OEISle 4 in 5!
✗↔↔✗↔
✓✓✓✗↔
✓✓✓✓✗
✓✓✓✓✗
✓✓✓✓✓
somethingorotherwhatever.com/oeisle

1 favourite 0 retweets

In reply to @Boud241

@Boud241 @Pier4r

1 favourite 0 retweets

In reply to @robeastaway

@robeastaway If this amused you, there's a very similar puzzle called Dominosa in Simon Tatham's puzzle collection
chiark.greenend.org.uk/~sgtatham/puzz…

2 favourites 0 retweets

Ooof. Sometimes it's easy, sometimes it's very hard.

I solved #OEISle 9 in 8!
somethingorotherwhatever.com/oeisle

2 favourites 0 retweets

In reply to @sibumaiti

@sibumaiti Incredible!

1 favourite 0 retweets

June

In reply to @monsoon0

@monsoon0 Fantastic bird, fantastic word

1 favourite 0 retweets

In reply to @setalyas

@setalyas @aperiodical Not sure it'll help much: even just for numbers up to 1000, that's a million possible games.
And I'd have to track results, which I don't currently do

1 favourite 0 retweets

In reply to @chris_fairless

@chris_fairless That's vacuously correct?

3 favourites 0 retweets

A while ago over on Mastodon @davidphys1@mathstodon.xyz asked why nobody had made animations of the shunting yard algorithm with cutesy trains.
There is no surer way to summon me!
I've spent some of my spare time over the bank holidays making exactly that: somethingorotherwhatever.com/shunting-yard-…

6 favourites 1 retweet

In reply to @christianp

The core problem is that you need to work out what just what an operator applies to: with the order of operations, it might be just one number, or it might a large sub-expression.

The algorithm solves this by holding operators on a separate stack until they're needed.

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In reply to @christianp

The shunting yard algorithm neatly solves the problem of translating a mathematical expression written in infix notation (operators go between the numbers/letters) to postfix notation (operators go after the things they act on).
youtube.com/watch?v=gHniHE…

3 favourites 0 retweets

In reply to @christianp

Here are some animations to illustrate.

In the first, operations happen left-to-right, so they appear in the same order in the output as in the input.

2 favourites 0 retweets

In reply to @christianp

In the second, the addition must happen after the multiplication, so it's held back.

1 favourite 0 retweets

In reply to @christianp

In the third, brackets ensure that the addition happens first.

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In reply to @christianp

The last wrinkle for standard arithmetic is that exponentiation is right-associative: while for the other operations you work left-to-right:
1 − 2 − 3 = (1 − 2) − 3,

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In reply to @christianp

the order goes the other way for exponentiation:
1 ^ 2 ^ 3 = 1 ^ (2 ^ 3)

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In reply to @MrDee_Maths

@MrDee_Maths @Wyatt915 @TahaRhhh @FlammableMaths @howie_hua I've got the stars for that: as well as 51 and 57, 39 is an underappreciated prim-poster.
aperiodical.com/2016/05/are-yo…

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In reply to @kyledevans

@kyledevans Iraq war protest songs?

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In reply to @matemdiscreta

@matemdiscreta insider trading I can overlook, but plagiarism is unforgivable! press.princeton.edu/books/hardcove…

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In reply to @matemdiscreta

@matemdiscreta no no no, your picture was good!

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Sad work news: @Tegglington is leaving us (boo!)

Good news: you could have his old job (hooray!)

We're recruiting a Teaching and Research Technical Officer. Responsibilities include working with me on @NclNumbas.

jobs.ncl.ac.uk/job/Newcastle-…

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In reply to @peterrowlett

@peterrowlett @Tegglington @NclNumbas @gwstagg I and George's replacement will take over Chirun development

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This looks like fun! twitter.com/SLSingh/status…

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Is it clear that people younger than 18 when this is introduced would never be able to smoke?
"Add a year every year" feels different to "Nobody born after this date may ever smoke", but isn't.
Is it? twitter.com/politic_animal…

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In reply to @johnharvey_math

@johnharvey_math Ohh, good point!

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In reply to @gregeganSF

@gregeganSF I remember being sat up in the gods and catching dairy milk at a panto when I was little, but I can't work out how that was possible. Were ushers throwing chocolate in from the sides? Many questions

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In reply to @samholloway

@samholloway Commiserations! You've done well to avoid it this long

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In reply to @soupie66

@soupie66 @mathemensch @Thalesdisciple @TeXgallery @mscroggs I don't know of a package, but there are plenty of cat emoji that you could use. Here's an example: overleaf.com/read/stgkmybfq…
Use something like graphemica.com/search?q=+cat to find the codes for different emoji

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Someone at Edexcel is looking at this, and the masses of people that go on twitter immediately after an exam to complain about unfair questions, and an idea is forming in their head. twitter.com/Cloudflare/sta…

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In reply to @JanvierUK

@JanvierUK *waves magic wand*

You may now call yourself disabled

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In reply to @JanvierUK

@JanvierUK Everyone does

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¡doʇS twitter.com/ShowMeASignBry…

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In reply to @TobyBailey

@TobyBailey @peterrowlett Child about 10, parent 0

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In reply to @chalkdustmag

@chalkdustmag @peterrowlett @clopenmic @24hmaths What's the opposite of the heckle "amateurs"?

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In reply to @growlaughlearn

@growlaughlearn @TWhitleyBay1 I've always tied my bike to the railings. It could really do with some proper bike stands!

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The existence of maths communicators @jamesgrime and @ClaraGrima implies the existence of maths communicators Antonio Grimo, Tippi Grimi, and Lulu Grimu

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In reply to @UniofNewcastle

@UniofNewcastle why are you retweeting NFT spam? twitter.com/RadRugsApp/sta…

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In reply to @jimwaterson

@jimwaterson @undertheraedar @cesigno That entry seems to be for the greggs in the shopping centre in Cramlington, which isn't particularly close to that farm: ratings.food.gov.uk/business/en-GB…
I wonder if that one's a franchise?

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In reply to @BernhardWerner

@BernhardWerner Recently I found this slide from a talk I gave 6 years ago. I still haven't given CindyJS a proper go. I really must!

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Using what-colour-is-that.glitch.me to decode a paper which assumes much more colour vision than I have.
Even though I made the app, I still don't believe those colours are different!

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In reply to @christianp

(the paper is Bill Gosper's "Rectangle Arithmetic", by the way - gosper.org/rectarith12.pdf)

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2023 will be your year, I'm sure, @Samuel_Hansen twitter.com/abel_prize/sta…

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Dan gets it. Be more like Dan. twitter.com/dan_rust/statu…

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In reply to @edsouthall

@edsouthall Is this all the same building?

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In reply to @edsouthall

@edsouthall What's the address? I'm curious to see the satellite view

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In reply to @peterrowlett

@peterrowlett @Helenintgarden I actually had some good chat with @robeastaway and @SparksMaths today about *something* I could do for the #BigMathOff, but I'd be surprised if it was amenable to a sticker book

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In reply to @SparksMaths

@SparksMaths here's the 3d printing guide I was talking about yesterday: mas.ncl.ac.uk/3dprintguide/

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In reply to @JanvierUK

@JanvierUK yikes! I'd suggest going outside, but I know you disapprove of The Outdoors

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In reply to @MiniGirlGeek

@MiniGirlGeek @standupmaths And: did you grow the beard specifically for the joke?

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In reply to @honeypisquared

@honeypisquared Are you aware of @knotunknot and her "the mathematician's shirts" project?

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What's the next term in this sequence?

1, 2, 1, 3, 1, 4, 2, 5, 1, 6, 2, 3, 7, 8, 4, 3, 1, 9, 2, 10, 5

What's the pattern?

#IHaveAnAnswer

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In reply to @christianp

No takers, so here's a big hint:

1,2,3,4,5,6,7,8,9,...
1,2,1,3,4,2,5,6,3,7,8,4,...
1,2,1,3,1,4,2,5,6,2,3,7,8,4,3,...

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In reply to @preetster

@preetster so what's the next term?

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In reply to @the_happyproton

@the_happyproton @HigherGeometer

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In reply to @dennisprangle

@dennisprangle Wow, that's a solid positive! Hope it's not too bad for you

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In reply to @SophieBays

@SophieBays *waves across the river*

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In reply to @yet_so_far

@yet_so_far My guess would be getting pregnant again immediately after giving birth. I suppose the danger is that not everything has healed?

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In reply to @CardColm

@CardColm Jog on the spot while riding it from end to end? A reference frame marathon

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In reply to @JanvierUK

@JanvierUK The girl and I have an African countries song, prompted by exactly this thought while looking at the world map poster in the kitchen. It peters out a bit when it gets to "the democratic Republic of the Congo, and the Congo again but not as democratic"

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In reply to @CAfolabi

@CAfolabi @revdavetubby @Tunde901 @TracyShildrick @ProfJSanders It's hard to turn down good grub, but I wouldn't be able to get into town and back for baby bathtime.

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It's always a good day to tell people about @tesseralis's fab polyhedra page twitter.com/jemmaths/statu…

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In reply to @jjsanderson

@jjsanderson US customs love telling you off, though. If it wasn't your laptop, it'd be something else!

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Rediscovered this intriguingly spare OEIS entry: oeis.org/A033875
You'll never guess what the 22nd term is!

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I have made a new maths t-shirt design! If you can bear to pay Redbubble's prices, you can strut around town with a niche maths reference on your front: redbubble.com/shop/ap/115207…

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In reply to @ESMathTeacher

@ESMathTeacher There's Something About Voting

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July

In reply to @neeldhara

@neeldhara There's a nice fractal sequence you can generate with a pack of cards: faculty.evansville.edu/ck6/integer/fr…
Lots of list manipulation if you want to do it in code

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Idea: app that tells the weather on Tyneside by counting how often people tweet images with a sarcastic caption "it's grim up north"

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In reply to @peterrowlett

@peterrowlett @alisonkiddle I'd never heard of that spire before, and when I drove past it at Easter I nearly crashed the car!

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In reply to @peterrowlett

@peterrowlett @alisonkiddle sounds similar to how I feel a bit uneasy if I can't see Penshaw Monument somewhere on the horizon. Psychic geography and all that

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People who know linear algebra: if I said "make a block diagonal from these matrices", would you know what I meant?
How about "augmented matrix"?
And is there a term for when you put one matrix on top of another?

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In reply to @yet_so_far

@yet_so_far thanks! Someone on mastodon said Sage uses 'stack', so I'll go with that

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*the sound of optimization theory lecturers worldwide writing their next homework* twitter.com/mrchrisaddison…

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The Axis of Tory MP Nominative Determinism:

James Cleverly
.
.
.
Chris Pincher

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In reply to @ZoeLGriffiths

@ZoeLGriffiths Towards the Pincher end of the scale

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The youngest did a huge poo in his nappy; after many decreasingly plausible denials finally admitted there's a poo in his nappy; then insisted he didn't want to change nappies.

Now let's turn on the news...

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In reply to @helenarney

@helenarney Me! Any chance of a 5am gig to distract the endlessly crying baby?

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In reply to @helenarney

@helenarney @FranChadhaDay

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In reply to @remiangot

@remiangot @GangWiMS Cela me rappelle: avez-vous vu les nouveaux "custom input methods" en @NclNumbas? numbas.org.uk/blog/2022/03/d…

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In reply to @alephJamesA

@alephJamesA @StEdmundHall 🥳

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In reply to @remiangot

@remiangot @GangWiMS @NclNumbas Ouais, on peut faire un 'part type' dont la méthode de saisie est un iframe MathALEA, puis attendre à un message envoyé avec postMessage dans 'pre_submit_tasks'

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In reply to @fionabarras1

@fionabarras1 @NewCycling @KidicalMassNE @NthTyneCycleSoc @NewcastleCC @NTCouncilTeam Yes, I've tried to cycle from Whitley Bay to Newcastle a few times, and there's always a point where I go "this doesn't feel right!"
I can't think what the plan would ever have been to get to Riding Sun - there's no avoiding the Holystone roundabout

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In reply to @CardColm

@CardColm So it *is* possible to make something with fourfold rotational symmetry and no reflections without it looking immediately like a swastika!

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In reply to @d_yellowlees

@d_yellowlees Heard our eurovision entry booming out of a car window yesterday and appreciated it, so not that

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Does anyone want to watch me spend 22 minutes fixing a bug in @NclNumbas?
youtube.com/watch?v=3dmerD…

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Is the statement "Newcastle is a gateway to the rest of the UK" equivalent to "Newcastle is on the national rail network"?

What measure for connectivity does Newcastle do best at? It feels like the claim here is something like it minimises "max(time to major city)" twitter.com/NGinitiative/s…

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In reply to @icecolbeveridge

@icecolbeveridge indeed!

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In reply to @LucasVB

@LucasVB I like this!

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In reply to @Thalesdisciple

@Thalesdisciple Ah yes, the law of Chekhov's Worksheet

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In reply to @DavidKButlerUoA

@DavidKButlerUoA Yes!

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I had an idea about how to make a binary clock entirely in CSS, with no JavaScript.
A nice bit of mental exercise for the train to work!
css-binary-clock.glitch.me

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In reply to @b0rk

@b0rk When I have a deep data structure that I want to watch, I sometimes set a watch expression which runs it through a function to produce a representative string - much easier to interpret

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In reply to @DanielColquitt

@DanielColquitt No way! That is serious business. The top temperature predicted up here is 29

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Boring: put chillies in everything

Tell me more: put everything in chillies

youtu.be/PvXEwy18bIg

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In reply to @benorlin

@benorlin @peterrowlett @stecks In more ways than one, your book was the elephant in the room

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Didn't think I'd see Zog slash fic on my tl today twitter.com/WeirdMedieval/…

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In reply to @miclugo

@miclugo I love that she's still doing this

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In reply to @ESMathTeacher

@ESMathTeacher If it helps, upper class English people have been saying "ain't" for centuries

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In reply to @bauhws

@bauhws @JimPropp That only works on self-hosted WordPress sites. Jim's blog is on WordPress.com

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In reply to @johncarlosbaez

@johncarlosbaez @JimPropp Yes, as @johncarlosbaez says, you probably want 𝛼

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In reply to @ShriramKMurthi

@ShriramKMurthi I get pro-saudi ads similar to this in the UK (or at least, I did until I muted them)

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In reply to @Pyfagorass

@Pyfagorass All it's missing is a number given relative to another unstated quantity

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My employer: decolonisation is high on our agenda

Also my employer: look at our fantastic Malaysia and Singapore campuses!!! 🤩

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In reply to @kyledevans

@kyledevans The most recent example I can think of: 4*TOWN in the film "Turning Red" has five members

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In reply to @NTStreetLife

@NTyneLivingSt @NTCouncilTeam @activetraveleng my mum lives along there, so I drive and cycle round that roundabout quite often. It doesn't feel great either way! The Broadway is a busy road but you're right that there doesn't need to be anywhere near as much tarmac as there is

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In reply to @XenaProject

@XenaProject @RiccardoBrasca What are the dots? Theorems in Lean?

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My first question on seeing this: how does the Duke of Northumberland, the owner of Alnwick Castle, stand to benefit from Newcastle being chosen? I guess rent or land sales twitter.com/alnwickcastle/…

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In reply to @yet_so_far

@yet_so_far On average, quite far apart, but near LA, quite close together 🤷‍♂️
Near me, Newcastle and Teesside International airports are 60km apart. Flying between them in a private jet would take about 4 minutes

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In reply to @yet_so_far

@yet_so_far I've seen elsewhere that the owners probably aren't on these flights: the planes are being moved either for maintenance or to be closer to the passengers.
I suppose if you've got money to literally burn, saving yourself a 40 minute drive to the big airport is worthwhile

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so when Valerie Singleton's mum got married, she stopped being a singleton and became a Singleton.

Any other instances of nominative capitalisation in history?

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In reply to @SLSingh

@SLSingh Congratulations! I think The Code Book was the first non-textbook maths book I owned.
I'm pleased the IMA continues to award the Zeeman medal only to Good Eggs

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In reply to @soupie66

@soupie66 of course!

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In reply to @katie_panda

@katie_panda is this an official set?!

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In reply to @monsoon0

@monsoon0 @AKWhitney aperiodical.com/2017/10/stupid…

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In reply to @edsouthall

@edsouthall

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In reply to @BernhardWerner

@BernhardWerner take this seriously! I had two bouts of sciatica while my kids were learning to walk, and recovering from it was a lot harder than preventing it!

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In reply to @edsouthall

@edsouthall You're not that much older than me, are you? Farthing Wood was my first thought

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In reply to @edsouthall

@edsouthall the single cutest experience of my life was unexpectedly seeing a baby stoat on a cycle path. So tiny! So round!

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Writing unit tests is a really good way of finding typos in your code. Who knew?

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"average person proves 3 theorems a year" factoid actualy just statistical error. average person proves 0 theorems per year. Carl Gauss, who lives in cave & proves over 10,000 each day, is an outlier adn should not have been counted

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In reply to @ZoeLGriffiths

@ZoeLGriffiths @edsouthall We said that about my daughter, and at nearly 5, she's still got very blonde hair

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In reply to @edsouthall

@edsouthall My sister-in-law, during the short time that she was a barmaid, poured a pint of whiskey.

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In reply to @josstified

@josstified I just can't see whose vote he's trying to get. Mean-spirited people who voted Tory last time, but somehow would switch to labour instead of the lib dems?

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There's no angle from which a dodecahedron looks like a regular solid.

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I'm organising a series of online public maths talks through @NCLMathsStats to be delivered by disabled presenters, taking place this December.
Talks can be any mathy topic, or about your experience as a disabled mathematician.
I need speakers: dm me if interested!

29 favourites 24 retweets

In reply to @christianp

@NCLMathsStats To give some idea of what I'm looking for, I'll use myself as an example.
I count myself disabled at least four ways: I'm colourblind, autistic, dyspraxic, and have Ehlers-Danlos.
I might talk about:

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In reply to @christianp

@NCLMathsStats 1) use of colour in mathematical communication; how red chalk makes chalk-and-talks inaccessible
2) how ambiguously-worded maths problems have stymied me in the past, and how to write them more clearly
3) the word problem in group theory, which is just something I'm interested in

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In reply to @OUMathsStats

@OUMathsStats @NCLMathsStats yep: christian.perfect@ncl.ac.uk

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In reply to @christianp

@NCLMathsStats This came about because I and some other disabled people who do maths talks got tired of missing out on opportunities to do outreach because it involves travelling.

If you're interested in taking part, either dm me or email christian.perfect@ncl.ac.uk

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In reply to @rasjor

@rasjor That's new to me, thanks!

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In reply to @neheritagelib

@neheritagelib It's a superb name

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In reply to @DrCaroSummers

@DrCaroSummers @scienceatlife Thanks for reminding me that we talked about going this summer! I haven't been in years, and none of the other L-Ps have been at all

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In reply to @HedronApp

@HedronApp Nah, looks weird

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In reply to @stecks

@stecks are you aware of this robot-themed diner? twitter.com/MrPJEvans/stat…

1 favourite 0 retweets

In reply to @SophieBays

@SophieBays Deservedly so! I still dig out your videos to talk about probability things with non-maths people

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August

In reply to @CardColm

@CardColm with the graphicx package, you can do \rotatebox, but why do you want to do this?

Here's an example on overleaf: overleaf.com/read/ryrxjqbxn…

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In reply to @CardColm

@CardColm phew!

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I've booked my place! twitter.com/BigMathsJam/st…

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In reply to @matthras

@matthras do it!

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👀

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In reply to @profRoys

@profRoys We used to have those things here. There's nothing to stop Scottish tories taking them away after independence

3 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl My snototter's not tottering on the foreshore, for sure
(how much of that works in your accent?)

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In reply to @ch_nira

@ch_nira @aperiodical Best poorly-thought-out plan I've ever put into action. You've made it your own thing!

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Are you disabled? Do you like talking about maths?
I'm still looking for a few more presenters for a series of public maths talks.
Thanks to everyone who's offered so far. twitter.com/aperiodical/st…

2 favourites 2 retweets

In reply to @gazza_d

@gazza_d crikey, how fast do you pedal? It takes me over an hour to do the 8ish miles into Newcastle from Whitley Bay

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In reply to @gazza_d

@gazza_d hat's off to you!

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Does anyone know if it's possible to get google maps or openstreetmap or similar to plot a route between two places, and show where you'd be at regular time intervals? Like, where you'd be after 5 mins, 10 mins, etc.

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In reply to @glitch

@glitch alpha61.com/primenumbershi…

3 favourites 0 retweets

In reply to @GermanQuatsch

@GermanQuatsch Would "from year dot" be a closer translation?

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In reply to @ch_nira

@ch_nira @aperiodical Why on earth would I mind?
I'd love to do another one, but it's a lot of admin. When my kids are bigger...

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In reply to @GerardWesty31

@GerardWesty31 That sounds a lot like the symmetries of the Herschel enneahedron! Now I need to look for sevens in it

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In reply to @alephJamesA

@alephJamesA Call it PhD by reputation. I'm quietly campaigning for it to be a recognised means of qualifying

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @BigMathsJam Quite pleased with myself that I remembered which year that was: mathsjam.com/assets/talks/2…

1 favourite 0 retweets

In reply to @SparksMaths

@SparksMaths @panlepan degenerate, naughty hexagons

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In reply to @SparksMaths

@SparksMaths @panlepan @geogebra is there an easy way in geogebra of creating a periodic tiling of a given shape?

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In reply to @panlepan

@panlepan @SparksMaths @geogebra thanks!

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In reply to @christianp

@panlepan @SparksMaths @geogebra is there a way to make the algebra editor not hateful? Like, don't delete everything between parentheses when I delete one parenthesis, and move sensibly with the arrow keys? It's set up for moving around 2D notation, but doesn't really manage it

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In reply to @SparksMaths

@SparksMaths @panlepan @geogebra I think the root of the problems with the app's input is that it won't allow a syntactically incorrect expression at any point, so if you write or delete one parenthesis it necessarily has to add or remove the matching one. An incorrect constraint, I'd say!

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In reply to @pwr2dppl

@pwr2dppl I don't think I've seen that format, so I'm confused squared

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In reply to @pwr2dppl

@pwr2dppl My experience of following you here is like 50% "oh, that's an interesting point" and 50% no idea even what realm of human endeavour it's about!

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In reply to @christianp

@pwr2dppl (not a complaint)

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In reply to @robinhouston

@robinhouston @panlepan @Simon_Gregg @HypercubicPeg @geogebra @zarahkhussain Those look like silhouettes of cubes to me

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In reply to @d_yellowlees

@d_yellowlees I've been up for three hours, Duncan. I'm ready to do Wednesday

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In reply to @jjsanderson

@jjsanderson @DrLucyRogers I was about to make a quip about finding a public transport service using vehicles older than the tyne and wear metro, but wikipedia says they're still making new hovercraft!

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In reply to @jjsanderson

@jjsanderson @DrLucyRogers I heard the first one's starting in October. Can't wait!

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In reply to @jjsanderson

@jjsanderson this page says the first new train will run in November: nexus.org.uk/newmetrotrains

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In reply to @christianp

@jjsanderson oh no it doesn't, I can't read. It arrives for testing in November this year, and enters service November next year. Good grief!

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In reply to @MattPDickinson

@MattPDickinson lucky dog! Ours surprised us by having a lovely snooze in the car the whole way.
Are you prepared for how dogs can't go indoors where food is served in Ireland?

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In reply to @accessibleweb

@accessibleweb It's really fraught with autism! Some people insist it's "has autism", others that it's "is autistic".

1 favourite 0 retweets

In reply to @JM_Field5

@JM_Field5 Twitter put this tweet next to one from someone showing the literally millennia of rubbish they pulled out of the Thames, including neolithic arrowheads and medieval hairpins. Surprised it was only an ear parasite!

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In reply to @JM_Field5

@JM_Field5 True fact

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In reply to @DrCaroSummers

@DrCaroSummers @Usborne Oh, I love those! I think we have a couple somewhere

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In reply to @DrCaroSummers

@DrCaroSummers @Usborne If you can bear it, they print those awful sticker dolly books in French. Haven't looked for anything bilingual yet!

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In reply to @jjaron

@jjaron they're selling our own experiences back to us. they're taking us for absolute fools

1 favourite 0 retweets

In reply to @Smylers2

@Smylers2 I've noticed nationwide have started doing lots more authentication checks recently. I'll take an abundance of caution, given the arms race of ways to scam online payments

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In reply to @Smylers2

@Smylers2 I agree it seems to do the wrong thing fairly often, but I can believe it's a really hard thing to get right, and being more transparent about how it works would only help scammers.
Frustrating all round!

1 favourite 0 retweets

In reply to @HigherGeometer

@HigherGeometer if you're using wordpress.com, you won't be able to use that plugin. And if you're on a host that can use plugins, you might as well use MathJax

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In reply to @HigherGeometer

@HigherGeometer having said that, something's not right on your site: wordpress is adding the fg and bg parameters to your latex, which suggests it's trying to automatically work them out. Is there anything in the appearance tab of the admin to set fg and bg colours?

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The good thing about @sangwinc doing basically the same job as me in a different place is that every now and then he heckles me in GitHub issues github.com/numbas/Numbas/…

1 favourite 0 retweets

In reply to @libraryncl

@libraryncl Sh-boom! Now there's a deep(-ly satisfying) cut!

1 favourite 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @robeastaway Blackfriars to tower bridge is a good walk! I also recommend it

0 favourites 0 retweets

In reply to @JimPropp

@JimPropp "nine-thousand-pound"? How many tons is that? I thought the point of customary measures was that you have a weird word for any order of magnitude!
(not asking you to justify the USA's continued use of the worst measuring system)

0 favourites 0 retweets

In reply to @miclugo

@miclugo @JimPropp as long as it minimises abs(log(scalar part)), it works for me

0 favourites 0 retweets

In reply to @samholloway

@samholloway @SamHartburn @Beamish_Museum I'm just learning now that these tiles aren't everywhere!

3 favourites 0 retweets

@tim_hosgood Somebody opened the chair catalogue, closed the chair catalogue, and said "yes."

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!!! twitter.com/bbcstrictly/st…

0 favourites 0 retweets

In reply to @samholloway

@samholloway @SamHartburn @Beamish_Museum I think I've seen them in Newcastle. Can't think where exactly, though

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What is ableism? It's this line on Alnwick Gardens's "visit us" page:
"you are able to park anywhere other than the first tier which is reserved for Blue Badge holders only"
Do Blue Badge holders infer that the rest of the page isn't written for them, either?

1 favourite 0 retweets

In reply to @christianp

(By all accounts they do a very good job of inclusion and accessibility once you're there. This just leapt out at me as badly written copy!)

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston This week, on Tales of Global Search and Replace

4 favourites 0 retweets

In reply to @robinhouston

@robinhouston Be the cexecutee you want to see in the world

1 favourite 0 retweets

In reply to @ch_nira

@ch_nira @MelroseStewart1 I mis-parsed that at first and I was like "Mountains? Near Birmingham?!"

1 favourite 0 retweets

It's back! @TweetsofCushing and I reviewed an integer sequence, and along the way we accidentally reviewed like half a dozen others. twitter.com/aperiodical/st…

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The thaMographe needs to be a bigger deal than it is. It solves a genuine problem! It's better than a pair of compasses and a protractor! twitter.com/thamographe/st…

2 favourites 0 retweets

In reply to @ptwiddle

@ptwiddle @edsouthall As long as the next page doesn't talk about the square lattice, they'll get away with that definition!
I'm looking forward to mine being old enough for Geometry Juniors

1 favourite 0 retweets

Where's door number 1? How do you know?

1 favourite 0 retweets

In reply to @El_Timbre

@El_Timbre @mrsdenyer @ikklewol87 Jaipur is very good

1 favourite 0 retweets

In reply to @ShriramKMurthi

@ShriramKMurthi What would the American equivalents of names like Bertie Wooster and Tuppy Glossop be?
Who fills the category of feckless wealth-haver in US society?

1 favourite 0 retweets

In reply to @Jeuducalisson1

@Jeuducalisson1 J'ai eu mal à comprendre les règles quand je considérais juste les arêtes, mais je l'ai trouvé beaucoup plus facile après j'ai réalisé qu'on peut remplir les lozenges avant de faire les arêtes.

1 favourite 0 retweets

In reply to @steveparks

@steveparks @jjaron The name sounds familiar, it might be the same guy. I found this one from March this year about chip butties - itv.com/news/central/2…

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK Yeah, selection bias goes both ways!

To answer your question: yes, lots of the time

0 favourites 0 retweets

In reply to @ntu_research

@ntu_research @drjameshind Does it matter that the formula is nonsense?

1 favourite 0 retweets

Odd experience to join @OMathsJam for the first time in a year and my game is in the Shout!
It's somethingorotherwhatever.com/this-island-is…

4 favourites 1 retweet

In reply to @kyledevans

@kyledevans How much of aperiodical.com/category/colum… have you read?

2 favourites 0 retweets

Zoinks! I just checked my salary. If UK higher education salaries had increased with inflation since 2009 I would now be earning £9,768.25 more per year. ucu.org.uk/HEpaymodeller #ucuRISING

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In reply to @christianp

(challenge for the keen beans: work out my current pay)

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In reply to @christianp

I did it again with the same current salary but 40 hours per week, and it said the same amount more. So I think it only asks for your hours worked to calculate an hourly rate. I wonder why it doesn't say what your hourly rate should be if it kept up with inflation

0 favourites 0 retweets

In reply to @LotoshaBrown

@LotoshaBrown @wacnt nice! Well done digging this up

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In case you were wondering, 153 is the smallest integer whose factorial has two zeros after the leading digit. It *just* fits in a tweet - see below twitter.com/LotoshaBrown/s…

8 favourites 1 retweet

In reply to @christianp

153! = 200634390509568239477828874698911718566246149616161171934231099284840946025238092339613294062603588435530393145048663047173051913507711632216305667129554900620296603188543122491838966881134795135997316305640071571629943041039657861120000000000000000000000000000000000000

3 favourites 0 retweets

In reply to @christianp

this has generated a *superb* integer sequence which isn't yet in the OEIS and I am rapidly submitting

5 favourites 0 retweets

In reply to @christianp

Just triggered an existential panic in Mrs L-P by showing her this screen

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge you're right, I only need an approximation!

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge but Stirling's approximation doesn't seem to be close enough, unless I've misunderstood. And Python doesn't like making massive floats, so I have to be clever twice

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge can I see your code?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge flaunting your coding skills and your kids' reasonable breakfast time at me. The cheek!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge oh, of course!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge could you make the counting-zeros bit quicker by chopping off the leading digit, then computing log10 of what's left?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge so what you're saying is you don't have seven 9s uptime?

0 favourites 0 retweets

In reply to @christianp

@icecolbeveridge can you add any extra terms you get to oeis.org/draft/A356739 ?

0 favourites 0 retweets

In reply to @gregeganSF

@gregeganSF having spent most of yesterday watching dd copy 1TB of empty data from one disk to another, this is weirdly relatable

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I have half a mind to try this in constructive real arithmetic, where you say how many decimal places you want, and it automatically does the calculation only to the required accuracy. My implementation isn't designed for speed, though

1 favourite 0 retweets

In reply to @algorithmachine

@algorithmachine "how could we possibly reduce our APC????"

1 favourite 0 retweets

In reply to @NTCouncilTeam

@NTCouncilTeam I had no idea there were places to recycle small electricals apart from the big tip. Thanks!

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The problem with recycling batteries is that I get through them so slowly that by the time I've got enough to justify a trip to the recycling point, they've been sat on the shelf so long I feel I'll miss them when they're gone.

I might be over-thinking things.

6 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl That's not a matrix, it's a lucky dip bag of numbers

2 favourites 0 retweets

Over on mathstodon, I've been thinking about shoddy, awful devices for drawing circles and lines, featuring @thamographe as the least-shoddy, least-awful device I've ever used
mathstodon.xyz/@christianp/10…

4 favourites 2 retweets

In reply to @christianp

It culminated in this nice chalk drawing

5 favourites 0 retweets

In reply to @two_star

@two_star May I suggest @aperiodical, where you're definitely not taking up anyone else's space

1 favourite 0 retweets

In reply to @christianp

Today we're at the beach, but I forgot to bring any string. So here's the biggest triangle (@BiggestTriangle) I could manage to make by eye.
In the background is the "equilateral" triangle I tried to make by enlarging one made from two bucket outlines

5 favourites 1 retweet

In reply to @lgebrah

@a1gebrandis There are new episodes?!

0 favourites 0 retweets

In reply to @neheritagelib

@neheritagelib You mean, better in every way?

1 favourite 0 retweets

I've found a route to the shops that goes over the railway once and under it once. I feel like those should cancel out to give a route that doesn't cross the railway at all

9 favourites 2 retweets

In reply to @aavanderleer

@aavanderleer Preparing plans for a Reidemeister move - sorry, bypass road - for the council to consider

1 favourite 0 retweets

Cycled to Silverlink shops with the girl. As far as I can tell, there are no bike hoops anywhere on the enormous site. Yes it's on the A19 so it's easy to drive to, but it's also on the waggonway so it's pretty convenient to bike to as well!

0 favourites 0 retweets

good job it's not 2020 any more because there'd be a million tweeted images of solidarity-themed sourdough loaves tagged #ucuRISING twitter.com/ucu/status/156…

0 favourites 0 retweets

In reply to @robinhouston

@robinhouston looks like a bus seat pattern from the 90s!

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 Brummies: "we've got the tallest free standing clock tower in the world"

Me: "why does nobody else think that's a good idea?"

2 favourites 0 retweets

In reply to @monsoon0

@monsoon0 yes, I was just reading that. Surely there's someone trained in surveying on campus who can settle that?

1 favourite 0 retweets

In reply to @CardColm

@CardColm With names like Cuthbert and Collingwood he's probably from my neck of the woods

1 favourite 1 retweet

My son is 2 next week. His favourite things are cars and the colour pink. His sister wants to get him a pink toy car. Can I find a pink toy car under £10? I can not!
What do I need to search for? Any suggestions?

5 favourites 1 retweet

In reply to @christianp

I believe in you internet strangers

0 favourites 0 retweets

In reply to @karenshancock

@karenshancock I think he's still a bit young for the small pieces, and the cheapest barbie car I can find is nearly £20!

0 favourites 0 retweets

In reply to @Smylers2

@Smylers2 Ahh, that looks great, thanks!

0 favourites 0 retweets

September

In reply to @jjsanderson

@jjsanderson Whomst for up-turning was nullsome

1 favourite 0 retweets

In reply to @ClaraGrima

@ClaraGrima

1 favourite 0 retweets

The functional analysis gang all went out for lunch yesterday and they didn't call it luncheonal analysis.
What is wrong with them

3 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett @cetl_msor2022 I'm in the #SadlyNoOnlineAttendance gang too.

1 favourite 0 retweets

International Expand Your One-Sentence Email To Give Some Context For Whatever It Is You're On About Day

6 favourites 1 retweet

In reply to @Cshearer41

@Cshearer41 @mrsouthernmaths @MathsTechnology @kyledevans @Mathematical_A teachers, how do you feel about LCD slates like amazon.co.uk/Richgv-Writing… ? I started using one for working-out a couple of years ago, and it's saved me so much paper and ink!

1 favourite 0 retweets

In reply to @christianp

International Not Prefacing Your Manifestly Quick Question With "Quick Question" Month

1 favourite 0 retweets

In reply to @peterrowlett

@peterrowlett Nice! Did you bang your head on the low beam and get a discount?

0 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Ahh, I thought I'd told you about it! On the ground floor there's a really small bit under the stairs, and a cross beam with a sign saying something like "if your dad bangs his head on this beam you can have £3 off"

1 favourite 0 retweets

In reply to @pwr2dppl

@pwr2dppl This place seems impossibly fancy for an event where, to be frank, you can expect plenty of attendees to be quite idiosyncratic about what they eat

1 favourite 0 retweets

In reply to @XenaProject

@XenaProject It annoys me how much easier this is to understand

1 favourite 0 retweets

Can't wait for my savings account to mature with its whopping 0.5% interest rate.
How the world has changed in a year!

2 favourites 0 retweets

In reply to @robinhouston

@robinhouston OpenSCAD is a decent open source option for certain kinds of thing.
In blender, if you stick to manipulating things by typing instead of using the mouse, you can maintain precision

4 favourites 0 retweets

In reply to @robinhouston

@robinhouston @_tim_hutton_ There's a chemical engineer at my work whose entire research workflow for 3d printed chemistry doodads goes through SketchUp. I think there are some addons involved, but I was surprised to see it!

0 favourites 0 retweets

I made myself a bowl of tuna mayo in advance, knowing I'd be too low on spoons to make it after tiny L-P's birthday party this morning. I just dropped it all in the sink 😭

1 favourite 0 retweets

In reply to @robinhouston

@robinhouston @LucasVB I think for that kind of thing, you might as well make up lists of coordinates in code. In python, I had an alright time with SolidPython, which wraps OpenSCAD

2 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Omg!!! Is it pink?

1 favourite 0 retweets

I'm not saying that I spent all day tiring the kids out so that they'd be asleep in time for me to attend the @WBayLabour trigger ballot meeting, but I am saying that they're both conked out and it doesn't start for another ten minutes

2 favourites 0 retweets

Apparently it's #ColourblindAwarenessDay.
Just now, I didn't know if the dark smudge on my son's leg was mud or blood. It's a proper disability which can have serious consequences!

9 favourites 1 retweet

In reply to @christianp

(I licked it. It was mud)

3 favourites 0 retweets

In reply to @ColourBlindVis

@ColourBlindVis Thanks. I've used those, then made my own to suit my needs - what-colour-is-that.glitch.me
Whipping out my phone to load an app isn't that easy when holding a screaming toddler, though

2 favourites 0 retweets

In reply to @soupie66

@soupie66 twitter.com/christianp/sta…

0 favourites 0 retweets

In reply to @WilliamDeringer

@WilliamDeringer I have a rule of thumb that I should never let a computer measure time spent doing anything. They're really bad at it!

1 favourite 0 retweets

In reply to @CihanPostsThms

@CihanPostsThms Eugh, internet people! I've really enjoyed following this account, seeing some theorems I recognise and learning about new ones. Thank you!

8 favourites 0 retweets

In reply to @monsoon0

@monsoon0 Because you expected a higher proportion to be built up, or because you expected a higher proportion to be unfarmed?

0 favourites 0 retweets

In reply to @monsoon0

@monsoon0 I had the same experience in the Netherlands. Is this an observation bias situation? You see land with more people on more often, so that shapes your expectation

1 favourite 0 retweets

In reply to @Thalesdisciple

@Thalesdisciple Analogies with the "I declare myself to be on the outside" joke about a mathematician

0 favourites 0 retweets

In reply to @DavidKButlerUoA

@DavidKButlerUoA Numbers! The number of times I've had arguments about whether it's OK to write a numeric answer to a question in a certain form...

1 favourite 0 retweets

This is one of the reasons why I don't like entirely in-person conferences. Needing a visa excludes so many people twitter.com/j_vechbany/sta…

8 favourites 3 retweets

Hushed conversations taking place in the Palace after courtiers read her will and discovered she's asked for her funeral to end to "Angels" by Robbie Williams

2 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees for me, the most unsettling feeling before a presentation is when I *don't* feel nervous - usually a sign that I'm not about to do my best work

1 favourite 0 retweets

Dutch pals: is this caravan called "fancy chicken"?

1 favourite 0 retweets

An innovative answer to the question "how can I get round the fact this puzzle has more than one solution?" twitter.com/robeastaway/st…

3 favourites 0 retweets

In reply to @mathpaul

@mathpaul Amazing

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @SparksMaths @mathladyhazel There's a phrase worth coining!
Feeble nachos: a spurious maths factoid

e.g. "the rocks at the giant's causeway are all perfect hexagons? That's feeble nachos"

2 favourites 1 retweet

In reply to @icecolbeveridge

@icecolbeveridge I've heard the fission chips is good

2 favourites 1 retweet

In reply to @JM_Field5

@JM_Field5 Something to do with heat?

0 favourites 0 retweets

In reply to @blkmathmagic

@blkmathmagic I wouldn't be surprised to find they're doing arbitrage on reimbursements somehow

0 favourites 0 retweets

I have just by accident discovered an amazing podcast: the National Plastering Council's "Smooth Finish" podcast
npcpodcast.libsyn.com/website

0 favourites 0 retweets

In reply to @jjaron

@jjaron Can I get away with saying it depends on context?

1 favourite 0 retweets

In reply to @jjaron

@jjaron False tetrachotomy

1 favourite 0 retweets

In reply to @Andrew_Taylor

@Andrew_Taylor I have a vague memory of playing a Noddy game with the same mechanic, but that might have been later

1 favourite 0 retweets

In reply to @stecks

@stecks Nice! I wish my plotter hadn't died. I think I need to get a new servo, but who knows?

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge I know how to do this! I can make an example for you in the week, but not today

2 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @alisonkiddle @SparksMaths @SamHartburn Good stuff! If you're free on Friday, we could meet in the mathsjam pub and talk through it?

0 favourites 0 retweets

In reply to @NTStreetLife

@NTyneLivingSt @NTCouncilTeam I cycled down there last week and I wasn't happy about being unexpectedly forced out onto the main road!

4 favourites 0 retweets

In reply to @clopenmic

@clopenmic @SamHartburn @Ayliean this is really good!

3 favourites 0 retweets

That carriage ain't getting picked up

1 favourite 0 retweets

The number of open issues on the @NclNumbas repository is down to 100! 🥳`

github.com/numbas/Numbas/…

1 favourite 0 retweets

I'm wary of directing people to activities that just look like a guy doing a thing on his own, but Simon isn't just any guy, he's got some excellent helpers, and he's been doing this for a few years now.

So: if you have a kid who wants to do More Maths, show them this! twitter.com/SLSingh/status…

5 favourites 1 retweet

In reply to @SamHartburn

@SamHartburn @icecolbeveridge @macaronique Here I am, late as always,
Doggedly Entering Twitter Entertainments, Recapitulating Mirth In Naming Ants, Not Termites

1 favourite 0 retweets

In reply to @jjsanderson

@jjsanderson Did you ever go to Le Normand, behind the Gate in Newcastle? "just galettes" is a hard concept to sell, but they were so good!

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Was that the one in the grainger market? I walked past a couple of times but never had a crêpe

0 favourites 0 retweets

In reply to @jjsanderson

@jjsanderson Omg, I've just remembered my rich friend booked them for a house party so I've had loads!

1 favourite 0 retweets

Was: NP-Complete

Now: Dif-and-only-ificult

6 favourites 1 retweet

Apparently there's a documentary about infinity coming out on Netflix on Monday: netflix.com/gb/title/81273…

4 favourites 0 retweets

In reply to @timchartier

@timchartier Last year I came up with a nice lullaby sequence. It's more interesting than just counting but easier than the primes. I still use it to sing my son to sleep!
aperiodical.com/2021/07/a-lull…

1 favourite 0 retweets

In reply to @theclairodactyl

@theclairodactyl @ColinTheMathmo So *that's* what's at the end of a rainbow!

2 favourites 0 retweets

In reply to @peterrowlett

@peterrowlett Fermi problem? Sounds like a fer you problem

2 favourites 0 retweets

In reply to @JanvierUK

@JanvierUK Never mind resignations, there'd be talk of a coup!

0 favourites 0 retweets

In reply to @gazza_d

@gazza_d I was genuinely confused by this when I cycled to south shields for the first time, via the ferry. Do you really have to take such a circuitous route to get to the seafront?

4 favourites 0 retweets

Hypermobility is remembering you don't wear *those* jeans because when you bend your legs they push your knee out of its socket

1 favourite 0 retweets

In reply to @HypercubicPeg

@HypercubicPeg Yes!

1 favourite 0 retweets

In reply to @yet_so_far

@yet_so_far Gives a new meaning to "Mersey Beat"

1 favourite 0 retweets

In reply to @FakeUnicode

@FakeUnicode twitter.com/christianp/sta…

0 favourites 0 retweets

Microsoft Word: now that ordinal is a superscript! You're welcome!

Also Word: now everything is superscript! You're completely welcome!

12 favourites 5 retweets

In reply to @christianp

Video description: I type "Monday December 12th", and the "th" is converted to a superscript when I go to the next line. Then I put the cursor at the end of the "th", start a new line, and the text "But I have done the forbidden thing" is also in superscript

1 favourite 0 retweets

In reply to @MalawiVillan

@MalawiVillan Rest assured, if I could choose, I wouldn't be using word

0 favourites 0 retweets

In reply to @JSEllenberg

@JSEllenberg and N is 💖 whatever your heart desires 💖

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl "teacher left me alone with my thoughts" is quite a bleak criticism!

3 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge How long did Javid last? I feel like that wasn't long either

0 favourites 0 retweets

The urge when faced with a minor feature request to retreat to the woods and spend the next decade rewriting all your stuff in @elmlang

2 favourites 0 retweets

That kW has to be a typo, right?

4 favourites 0 retweets

In reply to @christianp

"it's a bit chilly today, better put the space heater on for a bit"

1 favourite 0 retweets

In reply to @christianp

very droll, Argos

0 favourites 0 retweets

October

In reply to @icecolbeveridge

@icecolbeveridge @Andrew_Taylor "excuse me, is this API vegan?"

1 favourite 0 retweets

In reply to @JanvierUK

@JanvierUK Oh dear! Maybe the squirrel will be your friend now

0 favourites 0 retweets

I have a new #OEIS sequence: "a(n) is the smallest k such that k! has at least n consecutive zeros immediately after the leading digit in base 10."
oeis.org/A356739

6 favourites 0 retweets

In reply to @BernhardWerner

@BernhardWerner *waves from a country not even doing the bare minimum*

2 favourites 0 retweets

In reply to @panlepan

@panlepan @RobFathauerArt That looks like a really elaborate Nobbly Wobbly aperiodical.com/2016/05/maths-…

4 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl This sounds exactly like when I decided to quit my PhD!

2 favourites 0 retweets

I spotted this Mastermind game made in @geogebra, and it turned out to be a good example to show the difficulties I have due to colour vision deficiency, and how you can design an interface differently to avoid them.
youtube.com/watch?v=gRdrf7…

3 favourites 0 retweets

In reply to @christianp

@geogebra You can play the game at geogebra.org/m/urrmrv2f.
I'm not saying I expect the author, Alexander Huber, to fix this - I think this was just made for fun.
But when you're making stuff like this for work, you really need to consider basic accessibility problems like this.

1 favourite 0 retweets

In reply to @ohhnyxmusic

@ohhnyxmusic @geogebra you can only rely on distinguishing 3 or 4 shades. There are 8 here, so it'd be very tricky

1 favourite 0 retweets

There's bafflingly little understanding of colour vision deficiency in schools.
Just last week during a phonics meeting, a teacher at my daughter's school said "the sounds are in red so they'll leap right out".
Not to everyone! twitter.com/colourblindorg…

14 favourites 6 retweets

In reply to @MoleyMole01

@MoleyMole01 @DrSmokyFurby @UniWestLondon like me!

2 favourites 0 retweets

In reply to @panlepan

@panlepan @RobFathauerArt Me too!

0 favourites 0 retweets

Out two days before my birthday! 😉 twitter.com/alicecbennett/…

1 favourite 0 retweets

Today: trying to build an Android app. Currently 10 minutes into waiting for "create a new project" to finish. Something called Gradle is making my whole PC very stuttery

3 favourites 0 retweets

In reply to @christianp

I haven't said "I need more RAM" in at least a decade.
I think I need more RAM

2 favourites 0 retweets

In reply to @christianp

wow, it used so much memory that it quit, and it took firefox down with it!

0 favourites 0 retweets

In reply to @christianp

It seems to enjoy running on the macbook a lot more. All the screenshots in the tutorials show the mac interface; I'm surprised that google are happy to base their development tools on their competitor's OS!

0 favourites 0 retweets

In reply to @Kit_Yates_Maths

@Kit_Yates_Maths I assumed the app had stopped working, but I just opened it now and realised I hadn't set it up again after getting a new phone!

0 favourites 0 retweets

In reply to @icecolbeveridge

@icecolbeveridge @SamHartburn my visual memory of that song is when they performed it on Big Breakfast, and somehow I've convinced myself that Tony Blair was there too, dancing along, and that can't be right

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In reply to @icecolbeveridge

@icecolbeveridge @SamHartburn Sounds likely!

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In reply to @SamHartburn

@SamHartburn! twitter.com/TedPavlic/stat…

1 favourite 0 retweets

In reply to @ShriramKMurthi

@ShriramKMurthi I have a vague memory that they went bust around about the 2008 credit crunch

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In reply to @christianp

@ShriramKMurthi But yes, there used to be lots. I live in Greggs land, so my experience is skewed, but there weren't as many as other chains like Greggs or Costa

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In reply to @d_yellowlees

@d_yellowlees This landed like a lead balloon with my students yesterday:

A mathematician, a physicist and a statistician are hunting ducks

Duck flies over.
Mathematician shoots and misses. "just to the left!"
Physicist shoots and misses. "just to the right!"
Statistician: "got it!"

4 favourites 0 retweets

In reply to @d_yellowlees

@d_yellowlees The statistician took the average

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In reply to @modeltheorist

@modeltheorist Like, spaces in a particular part of the expression, or spaces anywhere between latex delimiters?

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In reply to @C_J_Smith

@C_J_Smith @TeaKayB @icecolbeveridge I hope you all have an unforgettable weekend

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In reply to @modeltheorist

@modeltheorist Ohh, that is so annoying!

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In reply to @robinhouston

@robinhouston been there, made the t-shirt redbubble.com/i/t-shirt/All-…

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In reply to @howie_hua

@howie_hua What a third derivative

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In reply to @LearningMaths

@LearningMaths It blows my mind that this was on actual telly

3 favourites 0 retweets

In reply to @benjamindickman

@benjamindickman @openblackboard What needs to happen for it to be available in the UK? I'd really like to try this!

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In reply to @SamHartburn

@SamHartburn Formigami, if you will

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In reply to @GreyAlien

@GreyAlien Labour seem to get blamed no matter what. Might as well actually be in power!

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In reply to @undertheraedar

@undertheraedar or use location API to make AmIWestOfBristol.com

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That's my girl!
#ZeroIndexHeroIndex

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In reply to @LongFormMath

@LongFormMath Vetoed

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In reply to @icecolbeveridge

@icecolbeveridge classic vibes of "I don't understand it, I'll leave it as an exercise for the reader"

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In reply to @jamestanton

@jamestanton while my 4-year-old was writing numbers, I remembered about exploding dots and showed her the 1<-2 video. She asked me to show you her numbers: 1 to 20! (more or less)

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In reply to @christianp

Now she's drawing dot machines!

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In reply to @peterrowlett

@peterrowlett chips are YELLOW???

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In reply to @peterrowlett

@peterrowlett I would've said brown or beige

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In reply to @christianp

@peterrowlett Also: oil is YELLOW????

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In reply to @miclugo

@miclugo @peterrowlett The context you're probably missing is that I'm colourblind

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In reply to @panlepan

@panlepan @matthematician I'm not particularly happy with this being used to make fun of someone

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In reply to @ShriramKMurthi

@ShriramKMurthi

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In reply to @hellocatfood

@hellocatfood Ooh, thanks! If it crashes less often than gnome-subtitles, it's got to be an improvement

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In reply to @amymariemason

@amymariemason @krfabian I think explanations of jokes are idempotent

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In reply to @christianp

@amymariemason @krfabian But we can 100% use disABELed for a session at @TMiPUK

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In reply to @JanvierUK

@JanvierUK It's an any% run, that's for sure

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A striking intervention by the 4-year-old following last night's scenes in Westminster.
Could this be the final straw for the tories?

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I for one would like to welcome our new lettuce overlord

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In reply to @christianp

it worked! Fear the power of L-P 3!

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In reply to @CardColm

@CardColm I was mistaken for an American outside that SPAR, by some actual Americans. Had to say "sorry, I'm one of the bad guys"

1 favourite 2 retweets

Just under a week to go until this happens. I've done some coding for the Guess Who game at 06:00, and I'm hosting "Blockbusters of Interesting Maths" at 09:00, with @stecks, @ColinTheMathmo and @alexcorner twitter.com/24hmaths/statu…

3 favourites 3 retweets

In reply to @jamestanton

@jamestanton Are all the sentences red?

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In reply to @edsouthall

@edsouthall Someone found a worse use for rubber stamps than the Coordinate (aperiodical.com/2015/02/coordi…)

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Just to clarify, because some confusion has arisen: the baby doesn't have a poo in his nappy, but his Duplo girl does. So if you can smell a poo, it's the Duplo girl who needs a change, not him.

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Another avoidable maths accident. Don't let this happen to you.

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In reply to @SamHartburn

@SamHartburn @MrsDMaths @SparksMaths here: somethingorotherwhatever.com/items/droste-d…

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In reply to @MrsDMaths

@MrsDMaths @SamHartburn @SparksMaths there have been a few talks on Dobble at @BigMathsJam. The first one was @MB_Whitworth in 2012: mathsjam.com/assets/talks/2…

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In reply to @pwr2dppl

@pwr2dppl Replay the horrible real scenarios?

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HIGNFrY! twitter.com/haveigotnews/s…

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In reply to @24hmaths

@24hmaths @stecks @ColinTheMathmo @alexcorner @mathmats It was a lot of fun!
The maths blockbusters board is online at maths-blockbuster.glitch.me, for anyone who wants to play at home

3 favourites 1 retweet

The 5-year-old wanted to ride her bike into Whitley Bay town centre. Going at her speed really makes it clear how difficult cycling is here. By the time we got to Station Road, I told her to go on the pavement because it's just not safe.
(I got off and walked)
@NTStreetLife

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In reply to @christianp

She really wanted to go along Park View and look at the shops (and maybe spend some money!) but she wouldn't be safe in the road, and I'd be a danger to pedestrians on the pavement. I really wish @NTCouncilTeam had kept the pedestrianisation - it was such a nice place to be

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In reply to @sophiethemathmo

@sophiethemathmo massive high fives next time I see you. (and if you're not asleep yet: go to sleep!)

2 favourites 0 retweets

In reply to @pwr2dppl

@pwr2dppl Our keyboard has a demo button which plays a synth-trumpet version of Livin La Vida Loca. It's the only sound it ever makes

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In reply to @pwr2dppl

@pwr2dppl Yeah, mathstodon.xyz
We've had a huge influx of people leaving twitter, so now's as good a time as any to give it another go

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In reply to @SLSingh

@SLSingh D. R. Kaprekarrefour

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In reply to @ben_nuttall

@ben_nuttall Because the generation that grew up reading Harry Potter are now in their 30s and kitting out their kitchens, so someone saw a buck to be made

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In reply to @MathsTechnology

@MathsTechnology @icecolbeveridge intriguingly, (-8)^0.333333333333333 works (15 3s), but (-8)^0.33333333333333 (14 3s) doesn't.

2 favourites 0 retweets

In reply to @christianp

@MathsTechnology @icecolbeveridge and spot a pattern in this!

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In reply to @icecolbeveridge

@icecolbeveridge @MathsTechnology 🤷‍♂️

1 favourite 0 retweets

November

In reply to @soupie66

@soupie66 @_MMaritima @ColinTheMathmo type @Bruce@mathstodon.xyz in the search box