More from Chalkdust
Dear Dirichlet, Issue 21
Suits, sofas and sculptures punctuate the prof's postbag this issue
Chalkdust issue 21 – Coming 17 March
Pre-order your copy of issue 21 now!
Constructing the cover of Issue 10
21 simple steps to draw your own Islamic pattern!
Crossnumber winners, Issue 06
Did you solve it?
Christmas conundrum #2
Solve this and you could be the lucky winner of a signed copy of The Indisputable Existence of Santa Claus
Seven things you didn’t notice in Issue 04
How many did you spot?