Algorithms
The art of computer programming, volume 1 (3rd ed.): fundamental algorithms
The art of computer programming, volume 1 (3rd ed.): fundamental algorithms
The Design and Analysis of Computer Algorithms
The Design and Analysis of Computer Algorithms
Original article: A direct calculation of moments of the sample variance
Mathematics and Computers in Simulation
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We wish to generate all unique permutations of a list of elements with possibly repeated items. We develop four algorithms to generate permutations, two from Knuth's Art of Computer Programming and two of our own devising. The last one developed also gives a numbering scheme for permutations that can be inverted to regenerate original permutations.