You might not have realized it, but The Simpsons is crammed with math. In this video, Simon Singh explains how Pi and algorithms crop up in the show—and why the characters work in a decimal world, despite only having eight fingers.
I could go on to explain some of the stuff that Singh talks about, but given he's just written a book all about the math of The Simpsons, I think he's best-placed to do it. Enjoy! [YouTube]