Miranda Kajtazi wrote: > Help, > > How to calculate the sum of list of lists in Haskell?
Do you mean something of the form Num a => [[a]] -> a ? If so, this should do it: Prelude> let foo = sum . concat Prelude> foo [[1,2,3],[4,5]] 15 Cheers, Maxime _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
