Variations

variations(Integer, Integer)

variations(List | Vector, Integer)

Given two integers $n$ and $k$, $n\ge k$, computes all possible arrangements described above.

Given a list or a vector with $n$ elements and $k$, $n \geq k$, returns a list with all the $k$-subsets.

Variations with repetition, Combinations, Combinations with repetition, Permutations, Permutations with repetition