Re: [Haskell-cafe] Why Haskell?

I used what I thought, initially was an elegant contruction technique in Haskell. Something like this do ... sequence $ [ reffill b s | s <- [0..(fi temits)-1], b <- [0..(fi nc)-1]] ...(push list on to matrix stack)

Try the sequence_ (note the underscore) function, it should be a big win here. Cheers, Spencer Janssen Now thats interesting. I can see that this function is more appropriate since I do not need to retrieve data from the IO monad, but what I don't understand is why it's actually faster. I will give it a try and test it on a large set to see if things change. Thanks for the tip.