More from Chalkdust
Bells, braids and taxicabs
An adventure that starts with a morning of bell ringing and ends with a mad dash in a taxi
Overturned polygons: shapes with less than two sides
Hugh Duncan explores polygons with a shortage of edges
Primes à la Euler
Infinitely many primes ending in 1, 3, 7 and 9 proved in typically Eulerian style.
Dear Dirichlet, Issue 06
Prof. Dirichlet tackles archaeology and supercomputers in answering your personal problems
The evolutionary arms race
Applying game theory to evolution
Our Favourite Functions: Part I
Because we love functions!