1## 2## Some corner cases for a polyhedron that is defined by generators. 3## 4gap> C := Cdd_PolyhedronByGenerators( [ [ 0, 2 ], [ 0, -2 ] ] );; 5gap> Display( Cdd_H_Rep( C ) ); 6H-representation 7begin 8 1 X 2 rational 9 10 1 0 11end 12gap> C := Cdd_PolyhedronByGenerators( [ [ 1, 2 ], [ 1, -2 ] ] );; 13gap> Display( Cdd_H_Rep( C ) ); 14H-representation 15begin 16 2 X 2 rational 17 18 2 -1 19 2 1 20end 21gap> C := Cdd_PolyhedronByGenerators( [ [ 1, 0 ] ] );; 22gap> Display( Cdd_H_Rep( C ) ); 23H-representation 24linearity 1, [ 2 ] 25begin 26 2 X 2 rational 27 28 1 0 29 0 1 30end 31gap> C := Cdd_PolyhedronByInequalities( [ [ -2 , 1 ], [ 1, -1 ] ] );; 32gap> Display( Cdd_V_Rep( C ) ); 33The empty polyhedron 34