The d-dimensional crossPolytope with diameter s is the convex hull of +/- s times the standard basis in QQ^d. If s is omitted it is set to 1.
i1 : P = crossPolytope(3,3/2) o1 = P o1 : Polyhedron |
i2 : vertices P o2 = | -3/2 3/2 0 0 0 0 | | 0 0 -3/2 3/2 0 0 | | 0 0 0 0 -3/2 3/2 | 3 6 o2 : Matrix QQ <--- QQ |
The object crossPolytope is a method function.