On 2007-08-14, Spencer Janssen <[EMAIL PROTECTED]> wrote: > On Tuesday 14 August 2007 10:17:53 Dougal Stanton wrote: >> I'm looking for cool but mind-bending examples of functional brilliance. >> >> Let us say, hypothetically, you had a bathroom without any reading >> material. And having read all the Dilbert and Garfield you could >> seriously stomach, decide you should educate yourself while "on the >> job". :-) >> >> So you decide to print up some "one-liner" style programs into a >> little booklet. Something between credit-card and postcard sized, with >> a neat but mind-bending program on it. Don Stewart occasionally swoops >> in with some fixpoint malarkey to defuse heated discussions. I mean >> that kind of thing, but with a slightly wider scope than just fibs... >> >> Suggestions, please! >> >> D. > > Here's a small puzzle: without using a Haskell interpreter, explain what > the 'foo' function does. > >> foo = filterM (const [True, False])
powerset. Very nice use of the list monad. -- Aaron Denney -><- _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
