greedy algorithm

Not necessarily, when it comes to money.

Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

Maths in a minute: Graphs and the degree sum formula

Double counting proves a neat result in graph theory.
The maths of randomness

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

Trying to make sense of a romantic statistic.
The two envelopes problem solved

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

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