GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
1 extreme rays 1 support hyperplanes embedding dimension = 2 rank = 1 external index = 1 grading: 1 0 degrees of extreme rays: 1: 1 *********************************************************************** 1 extreme rays: 1 0 1 support hyperplanes: 1 0 1 equations: 0 1 1 basis elements of lattice: 1 0