> We have an AMPL model that uses ordered sets and some functions > that come along with such an idea (e.g. card(), ord(), next(), > last()).
> Does GMPL (and specifically GLPK's implementation of GMPL) > support this family of operators? Unfortunately the glpk implementation of GNU Mathprog does not support ordered sets. (However, the card function is implemented.) For the reason please see some discussion on the list, in particular: http://lists.gnu.org/archive/html/help-glpk/2005-05/msg00008.html http://lists.gnu.org/archive/html/help-glpk/2006-11/msg00056.html http://lists.gnu.org/archive/html/help-glpk/2006-11/msg00058.html http://lists.gnu.org/archive/html/help-glpk/2006-11/msg00059.html Andrew Makhorin _______________________________________________ Help-glpk mailing list [EMAIL PROTECTED] http://lists.gnu.org/mailman/listinfo/help-glpk
