What is maths for? - What do we hope people will know after studying maths at school?
New Plus posters! - Find out how you can get hold of your own copy of our brilliant new poster!
Specially for students - This issue of Plus brings you the first of an occasional series expecially for use in the classroom.
The prime number lotteryMarcus du Sautoy begins a two part exploration of the greatest unsolved problem of mathematics: The Riemann Hypothesis. In the first part, we find out how the German mathematician Gauss, aged only 15, discovered the dice that Nature used to chose the primes.
Beauty is truth, truth beauty - The aesthetics of mathematics
Readers' corner - Rolling with money revisited: The Pyramid Puzzle
Finding order in chaosAll of science can be regarded as motivated by the search for rules behind the randomness of nature, and attempts to make prediction in the presence of uncertainty. Chris Budd describes the search for pattern and order in chaos.
A conversation with Freeman DysonThe 2003 Dirac Lecturer, distinguished physicist Freeman Dyson, tells Plus why he is an optimist, what makes life interesting and why old-fashioned maths is what you need for physics.
Imaging maths - Inside the Klein bottleIn the first of a new series 'Imaging Maths', Plus takes an illustrated tour of an extraordinary geometric construction: the Klein bottle.
Outer space: Independence DayHuman beings are famously prone to error, and proof-readers are, after all, only human. But who picks up the errors a proof-reader misses? John D. Barrow challenges readers to estimate the errors that aren't found from the errors that are.
Beckham in his prime numberThe number chosen by the England captain for his Real Madrid shirt is rich in mysterious connotations. But mathematician Marcus du Sautoy backs a new theory to explain why Beckham has plumped for number 23.
Optional maths - should students be able to give up maths at age 14?
Outer space - In what will now be a regular feature, mathematician and cosmologist John D. Barrow shares some maths that's amused and intrigued him.
Readers' corner- More Strange activities for last issue's Ship of Fools!
How maths can make you rich and famous: Part IIOne million dollars is waiting to be won by anyone who can solve one of the grand mathematical challenges of the 21st century. In the second of two articles, Chris Budd looks at the well-posedness of the Navier-Stokes equations.