More from Chalkdust
What’s odd about Pascal’s triangle?
Graeme Foster asks if there are more odd or even numbers in the triangle
Chalkdust issue 11 puzzle hunt #1
Matthew Scroggs sets the first puzzle. Can you solve it?
Biography of Sophie Bryant
A biography of Sophie Bryant
Four things you didn’t notice in Issue 05
How many did you spot?
How many quadratics factorise?
Write down a quadratic. What is the probability that it factorises? Paging Prof. Dirichet...
The Chalkdust Christmas card
This year's Chalkdust puzzle Christmas card