More from Chalkdust
Treating the differential with discretion
Sophie Bleau explores the differential on Morseback.
Significant figures: Sofya Kovalevskaya
Nora Koparan tells the story of the first female professor of mathematics
Dear Dirichlet, Issue 17
Canines, Cliff Richard and conditioning find their way into the prof's postbox this issue.
Quarto in higher dimensions
Peter Rowlett is gonna need a bigger board
Christmas conundrum #2
Solve this and you could be the lucky winner of a signed copy of The Indisputable Existence of Santa Claus
Summer puzzles
Have a go at these puzzles, adequate for your holidays!