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?

Count around the clock.

Capturing symmetry with algebra.