# Articles

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.

The maths behind combining R ratios

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.

Finding a way out of lockdown

Mathematical models can help the nation return to (some sort of) normality.

Social distancing: How close is safe?

How far can virus-carrying droplets fly in different environments — from buses to supermarkets? Maths can provide some answers.

The problem with combining R ratios

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.

Maths in a minute: Differential equations

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

How to resolve the Premier League

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.

Maths in a minute: the Fibonacci sequence

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

Maths in a minute: Entropy