# All Unique Permutations

It has 4 letters and 12 permutations, 3 for each letter. The Twelve-note Music Of Anton Webern (2006). Permutation notation. 26 Serendity Machine TEXT 14/10/03 3:23 PM Page 27 DIVIDE AND RULE. An algorithm to print all distinct permutations has already been discussed here. Permutations: A great little file, with published documentation, that will find all permutations with lots of options. Seperate lists with a blank line. If you want the Power Set (set of all unique subsets) of an array instead of permutations, you can use this simple algorithm: