Something or other, whatever!

Christian Lawson-Perfect's homepage

Useful tools


Constructive real numbers, in JavaScript. Based on Hans-J. Boehm's Java implementation

Postcard maker

A web page to create a postcard, for my pen plotter to draw. The text can include mathematical notation, rendered using MathJax.

The People Shuffler

A tool to decide who goes first: everyone loads this on their phone, and presses the screen at the same time. The phones will all ping at different times. A knock-off of an app I saw someone use. Contains a QR code so everyone else can load it easily.