On Wed, Sep 30, 2009 at 03:43:12PM +0100, Andrew Coppin wrote: > Well, try this: Go ask a random person how you add up a list of > numbers. Most of them will say something about adding the first two > together, adding the third to that total, and so forth. In other > words, the step by step instructions. Very few of them will answer > that the sum of an empty list is defined to be zero, and the sum of > a non-empty list is defined to be the first number plus the sum of > the list tail.
Maybe they would say that you have to go adding each number to the others, i.e. they're thinking with a fold. -- Felipe. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
