More from Chalkdust
Geometry Puzzles in Felt Tip
We review the first of this year's nominees for the Book of the Year
Integration: It’s more than the sum of its parts
Defining what exactly an integral is leads naturally to an explanation of how to handle approximating them.
Crossnumber winners, issue 04
Are you a winner?
Constructing a sphere with 455 cups
Paper cups do not follow a hexagonal pattern and the cones do not meet at a single point, but they do make a gigantic sphere
Finding the edge of your images
How can we identify objects in photos, to diagnose cancer or predict the weather? Using gradients!
A Fields Medal at UCL: Klaus Roth
Klaus Roth and his work