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D.13.2.23 facetWidths

Procedure from library polymake.lib (see polymake_lib).

Usage:
facetWidths(p); p polytope

Assume:
isBounded(p)==1

Return:
intvec, vector with the integral widths of all facet normals

Example:
 
LIB "polymake.lib";
==> Welcome to polymake version
==> Copyright (c) 1997-2015
==> Ewgenij Gawrilow, Michael Joswig (TU Darmstadt)
==> http://www.polymake.org
intmat M[4][3]=
1,2,0,
1,0,1,
1,2,1,
1,0,0;
polytope p = polytopeViaPoints(M);
facetWidths(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/
==> 
==> 1,2,1,2