Path: news.mathworks.com!not-for-mail From: "stephen " <sca2c@virginia.edu> Newsgroups: comp.soft-sys.matlab Subject: long summation function for fmincon Date: Wed, 8 Dec 2010 00:40:20 +0000 (UTC) Organization: The MathWorks, Inc. Lines: 10 Message-ID: <idmk5k$5vv$1@fred.mathworks.com> Reply-To: "stephen " <sca2c@virginia.edu> NNTP-Posting-Host: webapp-02-blr.mathworks.com Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: fred.mathworks.com 1291768820 6143 172.30.248.37 (8 Dec 2010 00:40:20 GMT) X-Complaints-To: news@mathworks.com NNTP-Posting-Date: Wed, 8 Dec 2010 00:40:20 +0000 (UTC) X-Newsreader: MATLAB Central Newsreader 1678992 Xref: news.mathworks.com comp.soft-sys.matlab:693450 I have a very long function I want to use in fmincon. This is my first post so I don't know the best way to state the function but I will attempt it like this: f = sum (from 1 to n) sum (1 to n) x(i)*x(j) + sum (1 to n) x(i) n = 120 so there are 14400 terms Is there an easier way than hard coding all the terms so it will go into fmincon? Also, at some point I will want to add coefficients to these terms from a 120x120 matrix. How can I add that to the program?