| #### D.13.2.24 hVector Procedure from library `polymake.lib` (see polymake_lib). Usage: hVector(p); p polytope Return: intvec, the h vector 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[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);
    hVector(p);
    ==> polymake: used package lrs
    ==>   Implementation of the reverse search algorithm of Avis and Fukuda.
    ==>   Copyright by David Avis.
    ==>   http://cgm.cs.mcgill.ca/~avis/lrs.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/
    ==>
    ==> 1,3,3,1

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