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flyingfisch
Sep 23rd, 2014
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  1. elementAt :: [a] -> Int -> a
  2. elementAt [] i = error "Empty list."
  3. elementAt l i
  4.     | i < 1 = head l
  5.     | i > (length l) = last l
  6.     | otherwise = l !! (i - 1)
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