Shlomi Fish wrote:
No. But I want to generate an irregular series, which I determine the intervals between two consecutive numbers myself. E.g:
let (num1, next1) = (counter 5) (num2, next2) = (next1 100) (num3, next3) = (next2 50) in [num1,num2,num3]
Will have the numbers [5, 105, 155].
What do you mean by "determine"? You can write sequence = iterate step_counter 0 if the interval between successive numbers is determined by the current number, or sequence = map f [1..] if it's determined by the index in the sequence. or sequence = map snd $ iterate step_counter (0,-7) step_counter (a,b) = (a+1, f a b) if it depends on both. Jón -- Jón Fairbairn Jon.Fairbairn@cl.cam.ac.uk 31 Chalmers Road jf@cl.cam.ac.uk Cambridge CB1 3SZ +44 1223 570179 (after 14:00 only, please!)