On Jan 13, 2012, at 12:35 PM, glpk xypron wrote:

> The documentation teaches:
>>> Being added to the problem object each column is initially 
>>> fixed at zero, i.e. its type is GLP_FX and both bounds are 0.
> 
> Please, use glp_set_col_bnds to set the column bounds.

Thank you so much! That fixed it.
regards
john perry


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