fingernail problem

A beautiful geometric problem opens the door to the world of metallic numbers.

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: The logistic map

Get a fish to teach you chaos theory!
Amaze your friends! Astound your family!

We reveal some of the maths and magic hidden within a simple pack of cards!
Compound infections

Why does the number e appear in models of exponential growth?
Joining forces to fight COVID-19

Plus is proud to join forces with leading epidemiologists from the JUNIPER consortium.
R's not all you need

When it comes to loosening COVID restrictions all eyes are usually on R — but it's also important to take account of prevalence.