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Re: [Help-glpk] [Fwd: Can we set a row with equal upper and lower bound?

From: glpk xypron
Subject: Re: [Help-glpk] [Fwd: Can we set a row with equal upper and lower bound?]
Date: Sun, 31 Jul 2011 19:05:09 +0200

Hello Andrew,

it would be helpful to the users if the documentation on
glp_set_col_bounds and glp_set_row_bounds would point out
that setting double bounds with same values will lead
to an error in the solver.

Couldn't the solver treat double bounds with same
values as fixed?

Best regards

-------- Original-Nachricht --------
> Glp_set_row/col_bnds does not check bounds at all; for example, one can
> specify a lower bound which is greater than upper one. This is made
> intentionally to allow setting lower and upper bounds independently on
> each other. However, glp_simplex and other solvers requires all bounds
> to be correct.

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