Re: [Help-glpk] help plz

2008-07-07 Thread Andrew Makhorin
> 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 h

[Help-glpk] help plz

2008-07-07 Thread ali chekir
HI Can someone send me some information about : Harris two-pas ratio test 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