two-sidedsurface

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.

Mysterious 6174

Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
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?
A cute problem goes big

Mathematicians have revived an old approach to solving the famous Riemann hypothesis.
The PEMDAS Paradox

It looks trivial but it keeps going viral. What answer do you get when
you calculate 6÷ 2(1+2)? David Linkletter explains the source of the confusion.
Helping men with early prostate cancer

A new online tool developed with the help of statisticians enables patients to make informed treatment choices.