Permutations

Permutations[list]
generates a list of all possible permutations of the elements in list.

Permutations[list, n]
gives all permutations containing at most n elements.

Permutations[list, {n}]
gives all permutations containing exactly n elements.

DetailsDetails

  • There are n! permutations of a list of n distinct elements.
  • Repeated elements are treated as identical.  »
  • The object list need not have head List.
  • Permutations[list] is effectively equivalent to Permutations[list, {Length[list]}].
  • Permutations[list, {nmin, nmax}] gives permutations of between and elements.
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