## Articles

The great thing about geometry is that you can sometimes prove things using pictures. Enjoy these three great visual proofs of Pythagoras' theorem!

Compound interest is the curse of debt and the blessing of saving. Find out how it works and what it has to do with one of the most important numbers in mathematics.

We talk to pioneering mathematician Stephen Cook, who came up with the concept of NP-complete problems, about his work, computer science, and artificial intelligence.

There are problems that are easy to solve in theory, but impossible to solve in practice. Intrigued? Then join us on a journey through the world of complexity, all the way to the famous P versus NP conjecture.

How will the Universe end? In a big crunch? Or a big freeze? It all depends on its shape...

If you're bored with the average, then move on to the variance!

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

How Heron of Alexandria missed his chance to explore the unknown mathematical land of complex numbers.