[Ipopt] Lagrange multipliers during iterations using Ipopt

Antonello Lobianco antonello at lobianco.org
Sun May 14 15:39:30 EDT 2017

You could access IPOPT using Jump <http://jump.readthedocs.io/en/latest/>
instead of Matlab and get the lagrangian with getdual([constraint name]).

On 14 May 2017 at 11:34, Àlex Ferrer <aferrer at cimne.upc.edu> wrote:

> Hi everyone,
> I am using Ipopt via the Matlab interface for solving my optimization
> problem.
> I need to know the values of the Lagrange multipliers during iterations
> and I could not find a way to get them from Ipopt.
> I was wondering if someone could help me with this.
> Thank you in advance,
> Àlex
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Antonello Lobianco
AgroParisTech, Laboratoire d'Economie Forestière
14 Rue Girardet - 54000 Nancy, France
Tel: +33.383396865 <+33%203%2083%2039%2068%2065>
Email, university: antonello.lobianco at inra.fr
<antonello.lobianco at nancy.inra.fr>
Email, personal: antonello at lobianco.org
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