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Polyhedra :: cone(Polyhedron)

cone(Polyhedron) -- Take the cone over a polyhedron

Synopsis

Description

The polyhedron is embedded at height one, then the cone is taken over it.

i1 : P = hypercube 2

o1 = P

o1 : Polyhedron
i2 : vertices P

o2 = | -1 1  -1 1 |
     | -1 -1 1  1 |

              2        4
o2 : Matrix QQ  <--- QQ
i3 : C = cone P

o3 = C

o3 : Cone
i4 : rays C

o4 = | 1  1  1  1 |
     | -1 1  -1 1 |
     | -1 -1 1  1 |

              3        4
o4 : Matrix ZZ  <--- ZZ