Path: news.mathworks.com!not-for-mail
From: "Bruno Luong" <b.luong@fogale.findmycountry>
Newsgroups: comp.soft-sys.matlab
Subject: Re: factorize singular symmetric matrix
Date: Tue, 29 Sep 2009 16:15:21 +0000 (UTC)
Organization: FOGALE nanotech
Lines: 12
Message-ID: <h9tbqo$q6v$1@fred.mathworks.com>
References: <h9sqsb$7gk$1@fred.mathworks.com> <h9t8h8$3tp$1@fred.mathworks.com> <h9t9bf$o6b$1@fred.mathworks.com> <h9tabe$2e$1@fred.mathworks.com> <h9tb0k$68o$1@fred.mathworks.com>
Reply-To: "Bruno Luong" <b.luong@fogale.findmycountry>
NNTP-Posting-Host: webapp-03-blr.mathworks.com
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 8bit
X-Trace: fred.mathworks.com 1254240921 26847 172.30.248.38 (29 Sep 2009 16:15:21 GMT)
X-Complaints-To: news@mathworks.com
NNTP-Posting-Date: Tue, 29 Sep 2009 16:15:21 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 390839
Xref: news.mathworks.com comp.soft-sys.matlab:573722


Sorry bad example previously, please use this one:

A = [1     2    0     0;
       2     4    0     0;
       0     0    1    2;
       0     0    2    4]

[L,p]=chol(A) 

rank(A) % <- 2

Bruno