-- -*- M2-comint -*- {* hash: 1373778967 *}

i1 : P = convexHull transpose matrix {{0,0,0},{1,0,0},{0,1,0},{1,1,3}}

o1 = {ambient dimension => 3           }
      dimension of lineality space => 0
      dimension of polyhedron => 3
      number of facets => 4
      number of rays => 0
      number of vertices => 4

o1 : Polyhedron

i2 : ehrhart P

     1 3    2   3
o2 = -x  + x  + -x + 1
     2          2

o2 : QQ[x]

i3 :