[Ipopt] Good solutions with errors in derivative test

Stefan Vigerske stefan at math.hu-berlin.de
Thu Feb 2 04:31:54 EST 2017


If it says that signs are wrong, for example, then that's a quite clear 
signal for a mistake.
There are also some options one (something with radius) can set that may 
help on numerically difficult problems.

On 02/02/2017 10:17 AM, Andrew Spiteri wrote:
> Hi Stefan,
> Thanks for your reply. I see. So from your knowledge/experience, how
> much should I trust the derivative test? Thanks.
> Best regards,
> Andrew


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