> Note that the case (b) should happen in re-optimization. Indeed, if There is a typo; must read "... the case (b) cannot happen ...".
I'd like to add that if the current basis is invalid and therefore lpx_simplex cannot start the search, it is always possible to build either the standard initial basis (lpx_std_basis) or an advanced initial basis (lpx_adv_basis, lpx_std_basis) and call lpx_simplex once again. This, however, is not a good idea if we wish to reoptimize the lp instance. Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
