[Ipopt] Changing variables bounds during computation

Andreas Waechter awaechter.iems at gmail.com
Thu Sep 1 15:26:39 EDT 2011

Hi Vita,

If the bound for a variable depends on the value of this variable (or 
other optimization variables), you can model it as an inequality constraint.


On 08/13/2011 07:48 AM, Vít Mach-Žižka wrote:
> Hi all,
> I'd like to ask if it is possible to change the variables bounds
> during computation i.e. between iterations?
> I am trying to use IPOPT (with C interface) to optimize power flows in
> electrical transmission networks and this could be useful to model a
> P-Q diagrams of generators where the bound is a function of its
> variable.
> Thanks a lot
> Vita
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