[Haskell-cafe] Re: Haskell problem please help
maeder at tzi.de
Thu Dec 16 10:32:38 EST 2004
N.B. if you want a faster answer such questions are best posted to
haskell-cafe at haskell.org
My answer: I asume that your function all_rotations somehow needs to be
called recursively for the rest of the input list xs.
> im not very good with haskell, i barely know the basics, my coursework
> requires me to genereate a vigenere square.......
> well anyway at the moment im trying to define a functin all_rotations
> which for any list returns the list of all its rotations, so far i've made
> an attempt but it only rotates once....any ideas? i dont want the complete
> solution just help thats all, much appreciated.
> all_rotations :: [a] -> [[a]]
> all_rotations  = 
> all_rotations (x:xs) = reverse (x:xs) : 
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