-- -*- M2-comint -*- {* hash: 183171410 *} i1 : C = posHull matrix {{1,2,3},{3,1,2},{2,3,1}} o1 = {ambient dimension => 3 } dimension of lineality space => 0 dimension of the cone => 3 number of facets => 3 number of rays => 3 o1 : Cone i2 : A = matrix {{-5,7,1},{1,-5,7},{7,1,-5}} o2 = | -5 7 1 | | 1 -5 7 | | 7 1 -5 | 3 3 o2 : Matrix ZZ <--- ZZ i3 : C1 = affinePreimage(A,C) o3 = {ambient dimension => 3 } dimension of lineality space => 0 dimension of the cone => 3 number of facets => 3 number of rays => 3 o3 : Cone i4 : rays C1 o4 = | 13 13 10 | | 13 10 13 | | 10 13 13 | 3 3 o4 : Matrix QQ <--- QQ i5 :