
3 Nov
2006
3 Nov
'06
5:01 a.m.
Hello Malcolm, Thursday, November 2, 2006, 8:18:25 PM, you wrote:
(*) `on` f = \x y -> f x * f y
Here are some alternative suggestions:
Data.Function Data.Functional Prelude.Functional Function.Combinators Prelude.Combinators
also Data.Combinators -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com