> I'm converting to an expression that wrote of the software LINGO for > GLPK and I'm struggling, can you help me? > > The expression on Lingo is this: > > ((1 - XE1156D02T3) * (1 - XE1156D03T3)) + ((1 - XE1156D09T3) * (1 - > XE1156D10T3)) + ((1 - XE1156D16T3) * (1 - XE1156D17T3)) + ((1 - > XE1156D23T3) * (1 - XE1156D24T3)) + ((1 - XE1156D30T3) * (1 - > XE1156D31T3)) >= 1; > > I'm trying to use this: > ((1 - XE1156D02T3) (1 - XE1156D03T3)) + ((1 - XE1156D09T3) (1 - > XE1156D10T3)) + ((1 - XE1156D16T3) (1 - XE1156D17T3)) + ((1 - > XE1156D23T3) (1 - XE1156D24T3)) + ((1 - XE1156D30T3) (1 - > XE1156D31T3)) >= 1; > > but I get the following error message: ET276_03_54.lp: 2257: missing > constraint sense.
Your instance looks like a quadratic program. Note that glpk is intended to solve LP and MIP only, not QP. _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
