Important: The group package has been deprecated. Use the superseding command GroupTheory[PermInverse] instead.

The inverse is computed, and the result is output in disjoint cycle notation.

The command with(group,invperm) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{group}\right)\:$

$\mathrm{invperm}\left(\left[\left[4\,6\,5\right]\,\left[2\,11\right]\right]\right)$

$\left[\left[2\,11\right]\,\left[4\,5\,6\right]\right]$