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Re: [Bug-glpk] Sensitivity Information not presented in sensitivity boun


From: xypron
Subject: Re: [Bug-glpk] Sensitivity Information not presented in sensitivity bounds file
Date: Mon, 19 Oct 2009 23:16:33 -0700 (PDT)

Hello Andrew,

the problem below can be solved by the dual simplex 
glpsol.exe -m test.mod  --dual

Yet glp_get_dual_stat() returns 
GLP_INFEAS dual solution is infeasible
for the problem when called in glplpx03.c.

The dual values for the constraints are 
c1: 1.000000 
c2: 1.000000 
c3: -0.000000e+000

Best regards

Xypron


UdayV wrote:
> 
> Hello,
> 
> I am not sure if this is a bug or not, but I am not able to get
> sensitivity bounds for the following simple example.
> 
> Uday Venkatadri
> 
> -------------------
> 
> var x1, >= 0;
> var x2, >= 0;
> 
> maximize
> 
> z: 3*x1+2*x2;
> 
> subject to
> 
> c1: 2*x1+x2 <= 100;
> c2: x1+x2 <= 80;
> c3: x1 <= 45;
> 
> solve;
> 
> end
> 
> 

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