David Amos is developing Haskell for Maths library and his current implementation covers mainly algebra and combinatorics. It nice to see how individual efforts are shaping as very useful libraries in Haskell community. Last time I mentioned about Haskell for Bioinformatics library developed by Ketil Malde. David also blogs where he explains different mathematical teasers, math behind them and how you can solve them using Haskell code. If you are math geek don’t forget to point your browser to his weblog.