[Haskell-cafe] let and fixed point operator
ketil at ii.uib.no
Thu Aug 30 12:38:01 EDT 2007
On Thu, 2007-08-30 at 18:17 +0200, Peter Hercek wrote:
> I find the feature that the construct "let x = f x in expr"
> assigns fixed point of f to x annoying.
Any alternative? Non-recursive assignments?
> f x =
> let x = x * scale in
> let x = x + transform in
> g x
I think it is often it is better to avoid temporary names. I guess this
is a simplified example, but I think it is better to write:
f x = g (transform + scale * x)
Or even use point-free style to avoid fixpoint?
f = g . (+transform) . (* scale)
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