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The undisputed top ten mathematical pets this season
Easy to state, hard to prove: The Collatz conjecture
90 years later, we're still unable to prove this surprisingly simple statement
Mathematical Adventures!
We review the first of this year's nominees for the Book of the Year
On the cover: Islamic geometry
Explaining the mathematics of tiling, and the cover of Issue 10
Deal or no deal?
Mike Fletcher explores the optimal strategy for winning the popular television game show
On the cover: Hydrogen orbitals
Find out more about the weird shapes on the cover of Issue 08