[Ipopt] [Bonmin] Hessian by finite differences

Pierre Bonami pierre.bonami at gmail.com
Wed Mar 4 14:19:51 EST 2009

Dear Edson,
Is your code for Ipopt or Bonmin?
In Ipopt there is already (I think) a code to evaluate Hessian by  
finite differences. It can also be used in Bonmin.
Best regards,
On Mar 2, 2009, at 9:12 AM, Edson Cordeiro do Valle wrote:

>         Hello
> I'm writing to make a small contribution to the project.
> Recently I made a small and simple code to evaluate the Hessian by
> finite differences. I did that code since I needed bonmin to solve
> integer problems and at that time, this feature was not available. I
> would like to know if you have interest in incorporating this code  
> into
> Ipopt (around 30-40 lines). I think it is a good opportunity for  
> people
> who wants to use bonmin and other codes. Although it is not very
> efficient it's working well.
>               Regards
> -- 
>                                                  Edson C. do Valle
>                                                edsoncv at enq.ufrgs.br
>                                                   Skype: edson.cv
> _______________________________________________
> Bonmin mailing list
> Bonmin at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/bonmin

More information about the Ipopt mailing list