-- -*- M2-comint -*- {* hash: 1212991831 *} i1 : C = posHull matrix {{1,2},{2,1}} o1 = {ambient dimension => 2 } dimension of lineality space => 0 dimension of the cone => 2 number of facets => 2 number of rays => 2 o1 : Cone i2 : Cv = dualCone C o2 = {ambient dimension => 2 } dimension of lineality space => 0 dimension of the cone => 2 number of facets => 2 number of rays => 2 o2 : Cone i3 : rays Cv o3 = | 2 -1 | | -1 2 | 2 2 o3 : Matrix QQ <--- QQ i4 :