> Can someone send me some information about : > Harris two-pas ratio test
Please see: P.M.J.Harris (1973), Pivot Selection Methods of the Devex LP Code, Mathematical Programming 5, 1-28. R.Fletcher (1994), Steepest Edge, Degeneracy and Conditioning in LP, 15th Intl. Symp. on Math. Prog. > I have a problem > when i enter this matrix , > max x1 + x2 + x3 1 0.5 1 > 0 1 1 1 > 0.9 1 0.5 1 > 3 1 3 0 < 2.4 1 1 0 < 3 xi > 0 > GLPK says it is infeasible > can someone give some help and ideas for the provenance of the problem Your instance is unclear. Could you write it in cplex lp format? _______________________________________________ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk