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From: "Marcus M. Edvall" <edvall@gmail.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: Improving precision in fminunc
Date: Wed, 7 Oct 2009 17:02:00 -0700 (PDT)
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You can setup the problem with tomSym, as per this page for example:
http://tomsym.com/nlp_programming_matlab.html

Then 1st and 2nd order derivatives will be generated automatically and
your precision will become the best it can be.

Best wishes, Marcus
http://tomopt.com/
http://tomdyn.com/