# Revision history [back]

This works for me:

sage: P8.schlegel_projection([2,5,11,17]).show()


The polyhedron show() method does not support a projection_direction optional argument.

This works for me:

sage: P8.schlegel_projection([2,5,11,17]).show()


The polyhedron show() method does not support a projection_direction optional argument.argument. The reference manual link that you gave points to the internally-used Projection class, not the Polyhedron class which is the user interface.