Description
pyramid takes the polyhedron
P with ambient dimension n and embeds it into
QQ^(n+1) on height 0 with respect to the new last variable. Then it computes the convex hull of the embedded
P and the point (0,...,0,1).
i1 : P = hypercube 2
o1 = {ambient dimension => 2 }
dimension of lineality space => 0
dimension of polyhedron => 2
number of facets => 4
number of rays => 0
number of vertices => 4
o1 : Polyhedron

i2 : Q = pyramid P
o2 = {ambient dimension => 3 }
dimension of lineality space => 0
dimension of polyhedron => 3
number of facets => 5
number of rays => 0
number of vertices => 5
o2 : Polyhedron

i3 : vertices Q
o3 =  1 1 1 1 0 
 1 1 1 1 0 
 0 0 0 0 1 
3 5
o3 : Matrix QQ < QQ
