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D.16.2.32 nBoundaryLatticePoints
Syntax:
Polymake::nBoundaryLatticePoints( polytope p )
Assume:
- p bounded.
Type:
- int
Purpose:
- the number of lattice points on the relative boundary of p.
Example:
| LIB"polymake.lib";
==> Welcome to polymake version
==> Copyright (c) 1997-2015
==> Ewgenij Gawrilow, Michael Joswig (TU Darmstadt)
==> http://www.polymake.org
intmat M[3][3]=1,2,-1, 1,-1,2, 1,-1,-1;
polytope p = polytopeViaPoints(M);
Polymake::nBoundaryLatticePoints(p);
==> polymake: used package cdd
==> cddlib
==> Implementation of the double description method of Motzkin et al.
==> Copyright by Komei Fukuda.
==> http://www.ifor.math.ethz.ch/~fukuda/cdd_home/cdd.html
==>
==> polymake: used package ppl
==> The Parma Polyhedra Library (PPL): A C++ library for convex polyhedra
==> and other numerical abstractions.
==> http://www.cs.unipr.it/ppl/
==>
==> 9
intmat N[2][3]=1,2,0, 1,0,2;
polytope q = polytopeViaPoints(N);
Polymake::nBoundaryLatticePoints(q);
==> 2
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