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Maths in a minute: "R nought" and herd immunity

What is herd immunity and what does it have to do with a number called R0?

The maths of COVID-19

Maths plays an essential role in fighting COVID-19, which is why the pandemic has featured a lot on Plus. Here is all our 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.

Unlocking the workforce

How can we get back to work safely in the face of a lingering pandemic? Mathematicians have issued some guidelines for policy makers and employes.

Understanding information

Information is supremely powerful, yet it can't be described by traditional physics. Constructor theory provides a potential answer.

Synchronised swimming: The podcast

How do green algae manage a perfect breaststroke even though they haven't got a brain? Find out how the maths of synchronisation sheds light, not just on algae, but on human physiology and evolution.

Football: Was points per game fair?

When the Premier League was suspended there was talk of deciding it on results achieved so far, rather than playing remaining matches. Would this have been fair?

Maths in three minutes: Map projections

There are many ways of projecting the round Earth onto a flat map!