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Author: Bill Casselman
On the dissecting table
writes about the intriguing amateur mathematician Henry Perigal, who took his elegant proof of Pythagoras' Theorem literally to his grave - by having it carved on his tombstone.
Maths in a minute: Tiling troubles
Why there are only three regular polygons you can tile a wall with.
Police and thieves
Using maths to simulate the behaviour of criminals.
Maths in a minute: Pretend primes
Fermat's little theorem and fake primes.
Information about information
What is information and how does it shape our reality?
A five that fits
A brand-new pentagon to tile your wall with.
Tweets by @plusmathsorg
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