Hello, I hope these don't turn out to be RTFM questions, but I can't find them in my FM :-) 1) Is there a function to get the ith element from an array? 2) Is there a function to get the "index" of an entry in an array? I've implemented these two functions below: 1) find 0 (x:xs) = x find n (x:xs) = find (n-1) xs 2) index i (x:xs) = if i == x then 0 else 1 + index a xs This was a fun exercise, but I can't shack off the feeling that I just re-invented the wheel. I need these because I want to be able to swap any two elements from an array. This is my swap function: -- swap i j array => swaps the ith and jth elements of 'array'. -- swap i j arr = a_head ++ [item_j] ++ a_midd ++ [item_i] ++ a_tail where a_head = [a | a <- arr, index a arr < i] item_i = find i arr a_midd = [a | a <- arr,(index a arr > i) && (index a arr < j)] item_j = find j arr a_tail = [a | a <- arr, index a arr > j] I'm sure this was a poor way to accomplish this, but it was a learning experience. If anyone would like to show me a more elegant solution, I would be happy to see it. Cheers, Daniel. Haskell newbie.