<div dir="ltr"><div>You could access IPOPT using <a href="http://jump.readthedocs.io/en/latest/" target="_blank">Jump</a> instead of Matlab and get the lagrangian with getdual([constraint name]).<br></div>Antonello<br><div class="gmail_extra"><br><div class="gmail_quote">On 14 May 2017 at 11:34, Àlex Ferrer <span dir="ltr"><<a href="mailto:aferrer@cimne.upc.edu" target="_blank">aferrer@cimne.upc.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone,<br>
<br>
I am using Ipopt via the Matlab interface for solving my optimization problem.<br>
<br>
I need to know the values of the Lagrange multipliers during iterations and I could not find a way to get them from Ipopt.<br>
<br>
I was wondering if someone could help me with this.<br>
<br>
Thank you in advance,<br>
<br>
Àlex<br>
<br>
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