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Name: Anonymous 2012-09-22 12:08



$ racket

Welcome to Racket v5.1.3.3

(+)

0

Name: Anonymous 2012-09-22 14:46

>>4
Haskell is superior:
a-plus-abs-b = (+ abs)

instance (Num a, Eq a) => Num (x -> a) where

    fromInteger = const . fromInteger

    f + g = liftM2 (+) f g

    f * g = liftM2 (*) f g

    f - g = liftM2 (-) f g

    negate = (negate .)

    abs = (abs .)

    signum = (signum .)

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