LIB "tropical.lib";
ring r = 0,(x,y,z),dp;
ideal I = cyclic(3);
option(redSB);
ideal stdI = std(I);
// w lies in the interior of a maximal Groebner cone
intvec w = 3,2,1;
cone CwI = groebnerCone(stdI,w);
print(rays(CwI));
==> 1,1,0,
==> 1,0,0,
==> 1,1,1
// v lies on a facet of a maximal Groebner cone
intvec v = 2,1,0;
cone CvI = groebnerCone(stdI,v);
print(rays(CvI));
==> 1,0,0,
==> 1,1,0
// v lies on a ray of a maximal Groebner cone
intvec u = 1,1,1;
cone CuI = groebnerCone(stdI,u);
print(rays(CuI));
==> 1,1,1