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From: "arnold szilagyi" <john.doe.nospam@mathworks.com>
Newsgroups: comp.soft-sys.matlab
Subject: underdetermined linear equation system
Date: Sun, 11 Oct 2009 15:38:19 +0000 (UTC)
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hello,

I have a big an very urgent problem. I have to solve an equation system in this way:

I have 50 unknows, and 8-15 equations. I have an initiative solution, so I'm looking for an iterative method to solve the system.

Since I'm not a mathematician, I googled a lot for an appropiate method, but I couldn't find nothing. 
I tried the mldivide function of the matlab, but it is not good for me. the solutions must be all positive, and matlab gives me a lot of zeros (I know that's the way it solves the system with mldivide).

So I'm stuck.
can anybody help me please?

bets regards
arnold