D.16.2.21 isTerminal

Syntax:

Polymake::isTerminal( polytope p )

Type:

int

Purpose:

1 if p has exactly one interior lattice point and all other lattice points are vertices, 0 otherwise.

Example:

LIB"polymake.lib"; intmat M[6][4]=1,1,1,2, 1,-1,-1,-2, 1,1,0,0, 1,-1,0,0, 1,0,1,0, 1,0,-1,0; polytope p = polytopeViaPoints(M); Polymake::isTerminal(p); Polymake::isReflexive(p); intmat N[6][4]=1,1,1,2, 1,-1,-1,-2, 1,1,1,0, 1,-1,-1,0, 1,-1,1,0, 1,1,-1,0; polytope q = polytopeViaPoints(N); Polymake::isTerminal(q); Polymake::isCanonical(q);