More from Chalkdust
Top Ten: Waves
The definitive chart of the best waves
Book of the Year 2019
We announce the winner of this coveted prize
Routes: Edsger Dijkstra
In this edition of the series, we instead learn about 'routes' and Edsger Dijkstra's shortest path algorithm.Top Ten: Calculators
Are you a FX-82 or an FX-85 fan?
Victorian maths tricks with old money
Exploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'
£100 Prize Crossnumber, Issue 02
Win £100 in our famous original crossnumber