Hi everyone, I've started on bindings for the random number generators and random distributions provided by the gsl. The package is available here: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/gsl-random I've also written a monad and transformer for doing monte carlo computations that uses gsl-random internally. Here is that package: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/monte-carlo For a quick tutorial in the latter package, see my blog: http://quantile95.com/2008/08/27/a-monte-carlo-monad-for-haskell/ There is also a more complicated example in the "examples" directory. Currently, only normal, uniform, and poisson random variables are supported. I have no plans to add anything else unless I need it, but I will happily accept patches if someone else is willing to do the work. One thing you may need to watch out for is that gsl-random needs to link with cblas. If your cblas is not called "cblas", you may have to edit "gsl-random.cabal" to get things to work correctly. To use the cblas that comes with the gsl, change "cblas" to "gslcblas". To use ATLAS, change "cblas" to "cblas atlas". Patrick