(self)
return [corners.index(c) for c in self.corners]
Return the indices of the corners.

        The indices are given relative to the original position of corners.

        Examples
        ========

        >>> from sympy.combinatorics import Permutation, Cycle
        >>> from sympy.combinatorics.polyhedron import tetrahedron
        >>> tetrahedron.array_form
        [0, 1, 2, 3]

        >>> tetrahedron.rotate(0)
        >>> tetrahedron.array_form
        [0, 2, 3, 1]
        >>> tetrahedron.pgroup[0].array_form
        [0, 2, 3, 1]

        See Also
        ========

        corners, cyclic_form
Return the indices of the corners.
Return the indices of the corners .
def array_form(self):
        """Return the indices of the corners.

        The indices are given relative to the original position of corners.

        Examples
        ========

        >>> from sympy.combinatorics import Permutation, Cycle
        >>> from sympy.combinatorics.polyhedron import tetrahedron
        >>> tetrahedron.array_form
        [0, 1, 2, 3]

        >>> tetrahedron.rotate(0)
        >>> tetrahedron.array_form
        [0, 2, 3, 1]
        >>> tetrahedron.pgroup[0].array_form
        [0, 2, 3, 1]

        See Also
        ========

        corners, cyclic_form
        """
        corners = list(self.args[0])
        return [corners.index(c) for c in self.corners]
def array_form ( self ) : corners = list ( self . args [ 0 ] ) return [ corners . index ( c ) for c in self . corners ]