Re: [Help-glpk] problem with dual

[Andrew Makhorin]

> I have a model like this.
> 
> When I try to get a dual I have all value 0.
> 
> GLPK.glp_get_col_dual(lp,colId+1) send 0 for all value. 
> 
> How can I solve this problem?
> 

This may mean that all columns (variables) are basic. To inspect the
solution you can print it to a text file with glp_print_sol.