More from Chalkdust
Prize crossnumber, Issue 22
Win £100 of MathsGear goodies with our famously fiendish crossnumber
The scutoid: a geometric building block of life
In 2018, scientists discovered a new shape that is essential to multicellular life
How to make: a hyperbolic plane
A great way to waste a lot of paper
The joys of the Jacobian
Robert Smith? tells us how his favourite matrix saves lives
Introducing the Cuboku
Can you solve our 3D Sudoku puzzles?
In conversation with Hannah Fry
On the mathematics of love, communicating maths to the public, and women in maths.