In this issue... Features 11
A mathematical view of voting systems
Alexander Bolton explains why
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elections are never fair Menace Oliver Child tells us how to teach matchboxes to play noughts and crosses Fractional calculus Rafael Prieto Curiel takes us through the calculus of witchcraft and wizardry You can count on Dirichlet James Cann counts the factors of very big numbers Analogue computing Bernd Ulmann has fun with differential equations
In conversation with Ian Stewart
We chat to the professor about Manifold, tigers and everything in between... 4
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Page 3 model What's hot and what's not Horoscope Dear Dirichlet Chalkdust comic
Roots: Fibonacci's legacy
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by Tom Hockenhull with Emma Bell
How to make...
Prize crossnumber Biography: Martin Gardner On the cover... Top ten...