Because GHC is limited in GHC you cant do double a = a * a you have to put into let like this let double a = a * a Cheers! On 16 Apr 2012, at 22:50, Mait wrote:
ENV
Ubuntu 12.04 haskell-platform/precise uptodate 2012.1.0.0~debian
ghci --version The Glorious Glasgow Haskell Compilation System, version 7.4.1
I've tried all day with, 'Learn You a Haskell for Great Good!' http://learnyouahaskell.com/
Very attractive book. I'm really enjoying this book.
Anyway I have one question,
Why I can't declare func type like books?
I got always error about 'lacks an accompanying binding', like this,
Prelude> :l baby.hs [1 of 1] Compiling Main ( baby.hs, interpreted )
baby.hs:32:1: The type signature for take' lacks an accompanying binding Failed, modules loaded: none.
Here is codepad link, http://codepad.org/ttZRBpkL
Thanks.
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