-- -*- M2-comint -*- {* hash: -1392121635 *}

i1 : P = hypercube 3

o1 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 3
      number of facets => 6
      number of rays => 0
      number of vertices => 8

o1 : Polyhedron

i2 : Q = convexHull matrix{{1,1,1},{1,1,-1},{1,-1,1}}

o2 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 2
      number of facets => 3
      number of rays => 0
      number of vertices => 3

o2 : Polyhedron

i3 : isFace(Q,P)

o3 = false

i4 : v = matrix{{1},{-1},{-1}};

              3        1
o4 : Matrix ZZ  <--- ZZ

i5 : Q = convexHull{Q,v}

o5 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 2
      number of facets => 4
      number of rays => 0
      number of vertices => 4

o5 : Polyhedron

i6 : isFace(Q,P)

o6 = true

i7 :