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Have your say on the top ten matrices

Adam Townsend sets the fifth and final puzzle. Can you solve it?

Think outside outside the box in our spring 2018 issue. No more tennis puns, primes mod 4, plus all your favourite regulars.

Vote for your favourite unit

Here we have collected our favourite sets, from the Mandelbrot set to the Mahut-Isner set!

A review of Timothy Revell's new book, describing the hidden mathematics behind our world