Content about “
complex number

Article
Torus

Moduli spaces: Introducing Riemann surfaces

How many different surfaces are there? The question seems impossible to answer, but mathematicians have a way of dealing with the multitude. Follow us on a journey into the world of moduli spaces.

Article

Complex square roots

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

Euler's formula

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

Complex numbers: Why do we love them?

Have you ever wondered what complex numbers are good for, both within and outside of maths? Find out with this collection of articles and videos.
Article

What is the Mandelbrot set?

This article gives a short but thorough introduction to that fabled beast of mathematics: the Mandelbrot set.
Article

Complex numbers: Strength

In this video the structural engineer Ahmer Wadee explains how complex numbers can keep buildings from collapsing.