Euler's solution to the Basel problem

This problem about an infinite sum has a surprising answer.

Infinite series occupy a central and important place in mathematics. C. J. Sangwin shows us how eighteenth-century mathematician Leonhard Euler solved one of the foremost infinite series problems of his day.

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.

The maths of COVID-19

All our COVID-19 related coverage at a glance.
The growth rate of COVID-19

We all now know about R, but sometimes it can be good to consider another number: the growth rate of an epidemic.
Taking the pandemic temperature

How do people in different countries feel about the COVID-19 pandemic and the measures taken by their governments?
Finding a way out of lockdown

Mathematical models can help the nation return to (some sort of) normality.
A call to action on COVID-19

An urgent call has gone out to the scientific modelling community to help fight against the COVID-19 pandemic. Two Cambridge mathematicians are helping to lead the charge.

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