If, like me, you're interested in Mathematics and Lisp and like doing math experiments on a computer, you should check out Atabey Kaygun's Blog. Kaygun is a Mathematician at Bahçeşehir University in Istanbul.

On his blog he considers various problems and algorithms that strike his fancy and uses (mostly) Common Lisp to experiment with them. Sometimes the problems are from Project Euler, other times they're things that pop into his head, and still others are culled from the literature. The problems are generally accessible to non-specialists and Kaygun does a good job providing background and explanation so the average Irreal reader should be able follow along. Here is a list of some of his recent musings.

If Mathematics is right after root canals on your list of favorite things, you probably won't be interested but if you like playing around with math problems and using Lisp to quickly and easily try out candidate solutions you're apt to enjoy Kaygun's blog. Fans of Project Euler and Programming Praxis are particularly likely to enjoy his posts.