Permutations by swapping: Difference between revisions
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_1 _2 _1 3</lang> |
_1 _2 _1 3</lang> |
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Alternatively, J defines C.!.2 as the parity of a permutation: |
Alternatively, J defines [http://www.jsoftware.com/help/dictionary/dccapdot.htm C.!.2] as the parity of a permutation: |
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<lang J> (,.~C.!.2)<:| bfsjtn^:(i.!3) bfjt0 3 |
<lang J> (,.~C.!.2)<:| bfsjtn^:(i.!3) bfjt0 3 |
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