With the credit crunch dominating the news, columnists have been wailing about "chaos in the markets", and "turbulent" share prices. But what does move the markets? Are they deterministic, or a result of chance? Colva Roney-Dougal explores the maths, from chaos to group theory.

Mathematics takes to the stage with A disappearing number, a work by Complicite, inspired by the mathematical collaboration of Hardy and Ramanujan. Rachel Thomas went to see the play, and explains some of the maths. You can also read her interview with Victoria Gould about how the show was created.

Human versus machine: who's better at proving theorems?

Game theorists model the evolution of trust and trustworthiness

The Sun is no longer singing solo and is now part of a stellar choir

A look at different voting systems

How long do football managers last?

A multi-disciplinary approach to complexity

The 2008 Nobel Prize in Physics has been awarded.

Who is to blame for the current financial crisis?

And three cheers for the maths behind its success!

Intuitive number sense linked to formal mathematics ability