D.16.2.17 isLatticeEmpty

Syntax:

Polymake::isLatticeEmpty( polytope p )

Type:

int

Purpose:

1 if p contains no lattice points other than the vertices, 0 otherwise.

Example:

LIB"polymake.lib"; intmat M[4][3]=1,1,0, 1,1,1, 1,0,1, 1,0,0; polytope p = polytopeViaPoints(M); Polymake::isLatticeEmpty(p); intmat N[4][3]=1,1,0, 1,2,1, 1,0,1, 1,0,0; polytope q = polytopeViaPoints(N); Polymake::isLatticeEmpty(q);