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!

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I've updated my #bigmathoff wall chart. Have you?

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Another stat to look out for: will @aperiodical pass 10,000 followers before the #bigmathoff finishes?

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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

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.

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yesssss it's working! Look at those tasty numbers! #bigmathoff

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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.

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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…

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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

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

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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

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)

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My #bigmathoff wallchart is up to date. Is yours?

9 favourites 2 retweets

In reply to @alisonkiddle

@ajk_44 What am I, your magic graph fairy? @ch_nira #bigmathoff

2 favourites 1 retweet

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

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

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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

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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!)

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Here's the final graph of the @ch_nira v @ZoeLGriffiths #bigmathoff semi-final. What a contest!
#graphfairy

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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!

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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

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 @mathsjem

@mathsjem @Samuel_Hansen it was nice to hear you speaking so positively about #BigMathOff on Relatively Prime!

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DM me if you'd like to take part in the #bigmathoff 2019.

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#bigmathoff 2019 is happening! Just emailed all 16 of this year's competitors.

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In reply to @icecolbeveridge

@icecolbeveridge @WrongButUseful @reflectivemaths You could mention the #bigmathoff. I haven't decided who's in your group yet

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In reply to @alexcorner

@alexcorner But you got your #bigmathoff pitch in to me, so your priorities are in order 👍

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I've just scheduled the first #BigMathOff post, to go out 9am tomorrow morning. It's nearly here!

15 favourites 4 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

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 @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

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

I'm really enjoying the #BigMathOff, both the entries and people's reactions to them. Thanks all round!

14 favourites 1 retweet

#BigMathOff twitter.com/JimPropp/statu…

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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?

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As promised, I have taken a hatchet to the wordpress plugin powering the #BigMathOff polls. Hopefully they'll all behave from now on.

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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

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!

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Some good questions about how the #BigMathOff plays out twitter.com/SheckyR/status…

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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

In happier #BigMathOff news, the world's most interesting mathematician (2018) has had a nice day in Greenwich twitter.com/ch_nira/status…

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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'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

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

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 @mscroggs

@mscroggs so is the #BigMathOff definitely back next year too?

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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 @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

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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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Now up to 7 #BigMathOff pitches. Nearly time to start!

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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!

11 favourites 3 retweets

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

7 favourites 0 retweets

If anyone felt like making an anonymous #BigMathOff pitch, that would help me out...

2 favourites 1 retweet

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?

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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

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

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

To C, who sent me a postcard about the #BigMathOff: what a lovely thing to do! Thank you!

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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

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

#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 @VickyMaths1729

@VickyMaths1729 @LPPbooks Crikey, a #BigMathOff reference on the back!

Congratulations on your new book

3 favourites 0 retweets

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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It's March, so time to start thinking about it: who's up for a #BigMathOff this year?

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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

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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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 @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