Stuck on your arithmetic? Try a billiard table!

Randomness is surprisingly hard to define. Fortunately the mathematical language we use to describe it is beautifully well defined.

Symmetry is one of the two guiding principles in understanding probabilities – if different outcomes are equivalent they should have the same probability.

The second guiding principle in probability theory is more subtle – universality.

Here's a resolution for one of probability theory's most famous paradoxes.

Learn about magical mathematical methods for fixing errors on the fly.

Is nature using digital tools to deal with genetic information?

Double counting proves a neat result in graph theory.