## Articles

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

In a previous article we introduced the problems that can arise when combine the reproduction ratios of a disease in different settings, such as hospitals and the community. In this article we dive into the maths that helps you get to the bottom of these problems.

We explore why you need to be extremely careful when combining the reproduction ratios of a disease in different settings, such as hospitals and the community.

Change is the only constant in our lives — which is why differential equations are so useful.

As football leagues around the world have been suspended due to COVID-19, how should the final rankings of teams be decided? Here is a suggestion.

The origin story of this famous sequences stars some cute, fluffy bunnies.

Is it about energy? Is it about disorder? Or is it about information? It's all three!

*R*

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