[Ipopt] Limited-memory quasi-newton option

loerx loerx at uni-trier.de
Thu Nov 11 08:06:16 EST 2010


Hi,

after the quick answer to my compiling problem a couple of weeks ago, - 
thanks!!! -, I come up to you with another short question.

I'd like to solve a plain nonlinear problem using the limited-memory 
quasi-newton option with box-constraints. (There are no linear or 
nonlinear constraints, g(x) < 0.)
Is it enough to set the number of constraints index to zero (or maybe 
-1)? Do I have to provide the evaluation functions eval_jac_g, etc?  
What should they return?

I'm using the C interface. Any help would be very nice!

Best regards,
Andre

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Andre Loerx

University of Trier
FB IV - Department of Mathematics
54286 Trier, Germany

phone: +49 651 201 3468
fax:   +49 651 201 3973
email: loerx at uni-trier.de
www:   http://www.mathematik.uni-trier.de/~loerx
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