More from Chalkdust

I’m counting on it
Joe Celko looks at four different abacuses used throughout history
The Newton–Raphson fractal
James Christian and George Jensen zoom in, out, in, out, and tell us what it's really all about
What’s hot and what’s not, Issue 17
Fashion is fleeting, Chalkdust regulars are not.
Dear Dirichlet, Issue 13
Parishoners, partners and puzzled playwrights have written in to the professor's postbox this issue
Crossnumber winners, issue 09
Did you solve it?
e to thee x
Zoe Griffiths on the life of e
