List comprehension in Haskell, Python and Ruby

Question

I have started looking at the project Euler site as a way to learn Haskell, and improve my Python and Ruby. I think the Haskell and Python versions are ok, but I\'m sure the

Answer 1

Try something like this:

(1...1000).inject(0) do |sum, i|
  if (i % 3 == 0) or (i % 5 == 0)
    sum + i
  else
    sum
  end