perms (MATLAB Function Reference)

All possible permutations

Syntax

P = perms(v)

Description

P = perms(v),

where v is a row vector of length n, creates a matrix whose rows consist of all possible permutations of the n elements of v. Matrix P contains n! rows and n columns.

Examples

The command perms(2:2:6) returns all the permutations of the numbers 2, 4, and 6:

6     4     2
4     6     2
6     2     4
2     6     4
4     2     6
2     4     6

Limitations

This function is only practical for situations where n is less than about 15.