> I'm using glpk 4.8 (via Java JNI > http://bjoern.dapnet.de/glpk/index.htm) as a feasibility solver. One > of my constraint is that the sum of structural variables = 1.
> When some coefficients are very small, e.g. 1E-6, then the constraint > that the sum of structural variables = 1 is not enforced. I got all of > them with 0. If I ignore those small coefficients (<= 1E-6), the > constraint that the sum of structural variables = 1 is satisfied. But > I'm not sure if this will affect the accuracy of my program. > Does anyone know if glpk has some precision lower bound or this is a bug? Your question is unclear. Could you give an example of the constraint and explain what is wrong? (Note that the most recent version of glpk is 4.32.) _______________________________________________ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk