# Equalities/Inequalities in Polyhedron()

Hi,

Anyone can please tell me that what equalities/inequalities in polyhedron(eqns = [()]) represent. e.g. for the following expression

P = Polyhedron(eqns=[(0,0,1,0)]) plane2.Hrepresentation()

The result is (An equation (0, 1, 0) x + 0 == 0,). Does it mean x2 = 0 plane in 3D?

Similarly for

plane3 = Polyhedron(eqns=[(1,0,0,-1)]) plane3.Hrepresentation()

the result is (An equation (0, 0, 1) x - 1 == 0,). Does it mean x3 = 1 in 3D.

If not so, how do we interpret it?

Thanks