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.

A geometry for strings

If, as string theory suggests, the world is made of strings, then what does that mean for a geometry of points? Find out more in this video.
Looking for love?

Find out how OKCupid's algorithm works.
Maths in a minute: The Sydney Opera House

The mathematical puzzle behind the iconic structure.
Pure maths in crisis?

Proof is the essence of mathematics. But is the standard of proof in research maths really as high as mathematicians would like to believe?
Inverse problems save the day

Inverse problems are mathematical detective problems. They can help solve crimes, are used in medical imaging, and much more.