one-sided surface

In the first of a new series 'Imaging Maths', Plus takes an illustrated tour of an extraordinary geometric construction: the Klein bottle.

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.

Emmy Noether: Against the odds

A brief look at Emmy Noether's challenging journey to become one of the twentieth century's great mathematicians.
Fantastic fractals

Escaping the tyranny of the straight line.
Packing spheres

How to arrange oranges in higher dimensions.
Seeing proof

Having trouble with algebra? Then try these visual proofs of two well-known algebraic identities.
From an ecologist's nightmare to a mathematician's dream

Tracing the path of invading species using a famous problem in graph theory.