Here, I think an examples worth a thousand poi....err, words. This one comes from YAHT. Consider the two implementations of the following function:
lcaseLetters :: String -> String lcaseLetters s = map toLower (filter isAlpha s) lcaseLetters :: Strint -> String lcaseLetters = map toLower . filter isAlpha Both functions will do the exact same thing. The second, however is written completely in terms of function composition and application. The s in the first implementation is what's being referred to as a 'point'. On 12/14/06, Steve Downey <[EMAIL PROTECTED]> wrote:
i'm not naive enough to think they are the composition function, and i've gathered it has something to do with free terms, but beyond that i'm not sure. unless it also has something to do with fix points? _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
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