My answer: I asume that your function all_rotations somehow needs to be called recursively for the rest of the input list xs.
Cheers Christian
imranazad wrote:
Hi,
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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