[Haskell-beginners] Factorials using foldx

[Bas van Dijk]

On Thu, Aug 7, 2008 at 4:16 PM, Paul Johnston
<paul.a.johnston at manchester.ac.uk> wrote:
> Is there any difference in efficiency, I remember reading it is better to count down than to count up but left to right or right to left :-)

I wrote a small wiki article on the differences beteen the various folds:

http://haskell.org/haskellwiki/Foldr_Foldl_Foldl%27

regards,

Bas