Arie Groeneveld wrote: > tm = sum . takeWhile(>0) . iterate f . f > where f = flip div 5
> Which one is the most elegant one generally speaking? I like that tm only uses div. > My personal choice is 'tm'. > I like 'tm3' (a revised version of tm2) in terms of > pointlessness and not having a 'where', but I think > it's a bit contrived because of the 'flip'. You can make tm whereless by noticing that you use because you use the function twice in iterate f . f, which is because you don't want the initial value that iterate gives. You can instead use tail on iterate's result, and use a section to avoid flip: tm = sum . takeWhile (>0) . tail . iterate (`div` 5) (Hope that works, can't test now...) All the best Christian Sievers _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
