*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
vanddet *= M(i,1) - M(j,1);
if (expand(det - vanddet) != 0) {
vanddet *= M(i,1) - M(j,1);
if (expand(det - vanddet) != 0) {