Hello folks, I'm not even sure if this is the place to put this but with some luck it might be. I just have a general question about permutations. I understand the concept of even and odd permutations of a set of numbers, what I am hoping for is an easy way to figure out if (given a scrambled arrangement of the original set) the new set is even or odd? Obviously other than the trivial solution of going through it permutation by permutation and counting. Thanks for any input!