[Haskell-beginners] Noob question.(I'm trying 'http://learnyouahaskell.com' tutorial)

[Jakub Oboza]

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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