Xypron, Please note that in different lp packages dual values are defined in different ways, and there may be some confusion about the signs depending on optimization direction (minimization or maximization). In glpk a dual value of a row/column is the Langrangian multiplier of corresponding auxiliary/structural variable. For exact formal definition please see Chapter "Advanced API Routines", Subsection "Background" in the glpk reference manual.
Best regards, Andrew Makhorin _______________________________________________ Bug-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-glpk
