Re: [Haskell-beginners] making function problem (chapter 6 of Programming in Haskell)

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To: beginners@haskell.org From: es@ertes.de Date: Mon, 8 Aug 2011 16:36:18 +0200 Subject: Re: [Haskell-beginners] making function problem (chapter 6 of Programming in Haskell)

Roelof Wobben wrote:

...

I think you mean something like this :

2 ^ 3 = = 2 * 2 ^ 2 = 2 * 2 * 2 ^1 = 2 * 2 * 2 * 2 ^ 0 = 2 * 2 * 2 * 1 = 2 * 2 * 2 = 4 * 2 = 8

Yes, but that's not a rule system. Try to come up with a rule system to express exponentiation. You need two rules for the algorithm you want to implement.

Greets, Ertugrul

-- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/

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Maybe this : x ^ 0 = 1 x ^ y = x * (y-1) Roelof