# Articles

How to take the square root of a complex number — and discover a beautiful new surface in the process.

There are a million things in maths named after Leonard Euler. Here's a beautiful formula involving complex numbers.

Lateral flow tests have become a common feature in our lives. What impact can they have on managing COVID-19?

How do you calculate your risk of catching an airborne disease?

The mathematical equations governing fluid flow may have no known solutions, but maths still has the answers!

As the Delta variant is worrying the UK, researchers from the JUNIPER consortium have published all they know about it.

When you receive a positive test result for a disease, the chance you actually have it depends on how common the disease is.

Quicksort is a famous algorithm which celebrates its 60th birthday this year. We explore its clever workings.

Next month sees the 60th birthday of a famous algorithm called Quicksort. Its inventor Tony Hoare told us that it all started with bubbles.

Many processes, including climate change and the spread of COVID-19, involve a delay. Here's a beautiful equation designed to model such processes.