Had you considered list comprehension? [x | x <- xs, x < 0.5 && x > -0.5] Luca.
Date: Mon, 19 Oct 2009 01:49:17 -0700 From: mpm@alumni.caltech.edu To: beginners@haskell.org Subject: [Haskell-beginners] \x -> x < 0.5 && x > -0.5
Is there a nifty way to write
filter (\x -> x < 0.5 && x > -0.5) xs
without explicitly using x?
Maybe arrows? I have a vague understanding that arrows can "send" an argument to more than one computation.
-Mike _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners
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