Ewgenij's recommendation polytope > $Verbose::rules=3; polytope > my $points=new Matrix<Rational>([[1,-1,-1],[1,1,-1],[1,-1,1],[1,1,1],[1,0,0]]); $p=new Polytope<Rational>(POINTS=>$points); prefer_now "beneath_beyond";$p->DUAL_GRAPH->ADJACENCY; save($p,"OUTPUT.xml"); results in r...