Personally, I think that when comparing the two sets you could always use i.n to represent one of them.
For example, if you have P1=: i. 8 P2=: ?~8 Clearly, P2 is in a random order. However, if you shift domains p1=: P1 /: P2 p2=: P2 /: P2 we see that p1 is also in a random order. In any event: [EMAIL PROTECTED]@(+/ % #)@(i. ="1 (A.&i.~ !))"0 i. 5 0 1 2 3 4 -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
