simple, simplicial, truncation polytope
128, 90, 192
d
d+1
d+1
row(1, (-1) x $d ); for ($i=0; $i < $d ; $i++){ row (1, (-1) x $i, $d, (-1) x ($d-$i-1) ); } returnmatrix();
row(1, (-1) x $d ); for ($i=0; $i < $d ; $i++){ row (1, (0) x $i, 1, (0) x ($d-$i-1) ); } returnmatrix();