Actually that post contains code that claims to do "permutations" but that does something different than what the original poster is doing (and different than what I think of when "permutations" are requested) [ the "combinations" part of the code does that I would call "combinations" :) ].
merlyn's code gives all of the different ways of picking one item each from a collection of sets. Both my and the above permutations code gives all of the possible orderings of the items in a single set (though my code gives only unique orderings in cases when there are duplicates in the "set").
I mention this not to claim that my definition of "permutations" is the one true and correct definition, but to point out the difference to help prevent further confusion. (:
-
tye
(but my friends call me "Tye")
