Groups are some of the most fundamental objects in maths. Take a system of interacting objects and strip it to the bone to see what makes it tick, and very often you're faced with a group. Colva Roney-Dougal takes us into their abstract world and puzzles over a game of Solitaire.

A brave new computer society

Maths finds the structures that underpin written language

Could you be a Plus author?

Physicists create a quantum Newton's cradle - and witness an absence of chaos for the first time.

The Plus career posters achieve TV fame

A mathematical model evaluates responses to epidemics

The new Maths KTN is showing business how to do mathematics and mathematics how to do business.

The 2006 Abel prize celebrates the mathematician who helped make mp3s possible.

An algorithm for solving Sudoku puzzles from an unexpected source

More honours for the director of the Millennium Mathematics Project