[Coin-ipopt] Derivative checker problem (IpOpt 3.3.4 over the Matlab interface), ignorance of starting point information

Peter Carbonetto pcarbo at cs.ubc.ca
Mon Jan 14 16:42:03 EST 2008

> Do you know whether the invalid starting point is also used for the
> optimization part?  In my case, such behaviour would ask for trouble
> (a Hessian of some 1e20 does not mix well with 1e-8 coordinates).

To my knowledge, this problem only occurs when using the derivative 


>>     I sent an email about this earlier:
>> http://list.coin-or.org/pipermail/coin-ipopt/2007-November/000914.html

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