GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
2 vertices of polyhedron 0 extreme rays of recession cone 2 support hyperplanes of polyhedron (homogenized) embedding dimension = 3 affine dimension of the polyhedron = 2 (maximal) rank of recession monoid = 1 internal index = 1 dimension of maximal subspace = 1 *********************************************************************** 2 vertices of polyhedron: 0 0 1 1 0 1 0 extreme rays of recession cone: 1 basis elements of maximal subspace: 0 1 0 2 support hyperplanes of polyhedron (homogenized): -1 0 1 1 0 0