It does compute the result of a function application more than once if you ask for it more than once, and that's why we need memoization.

Dan

On Tue, Dec 15, 2009 at 10:32 PM, michael rice <nowgate@yahoo.com> wrote:
I'm looking here at the Fibonacci stuff:

http://www.haskell.org/haskellwiki/Memoization

Since (I've read) Haskell never computes the value
of a function more than once, I don't understand the
need for memoization.

Enlighten me.

Michael



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