Sum of Squares using Haskell

Question

I\'m trying to carry out the following computation: sum of the squares of integers in the range x:y where (x <= y).

I\'m not sure how to put a constraint to ensur

Answer 1

Using list comprehension:

squareSum from to
  | from > to = error "wrong input"
  | otherwise = sum [i^2 | i <- [from..to]]

UPDATE: updated after OP has updated the question