It would be foolish to ignore evidence. Luckily Bayes' theorem shows us how to take it in into account.

At the heart of modern physics lurks a terrible puzzle: the two main theories that describe the world we live in just won't fit together.

The powers of x can work magic.

Continued fractions reveal the good, the bad and the beautiful side of numbers.

Eleven makes multiplication easy.

A quick look at an ancient problem.

Why there are only three regular polygons you can tile a wall with.

Fermat's little theorem and fake primes.

The mathematical problem with turbulence.

How crinkly is crinkly?