[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Octave-bug-tracker] [bug #42177] Wrong second output argument for chol

From: Marco Caliari
Subject: [Octave-bug-tracker] [bug #42177] Wrong second output argument for chol of a sparse matrix
Date: Fri, 30 Jan 2015 16:00:35 +0000
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0

Update of bug #42177 (project octave):

              Item Group:        Incorrect Result => Matlab Compatibility   


Follow-up Comment #4:

I just noticed that, although not written in the help, for the full case it
seems true that if info is not zero, then

R(1:info-1,1:info-1)'*R(1:info-1,1:info-1) == A(1:info-1,1:info-1)

(as written in Matlab help), whereas in the sparse case, if A is not SPD, than
info is always 1. So, now it is a simpler not compatible behavior.



Reply to this item at:


  Message sent via/by Savannah

reply via email to

[Prev in Thread] Current Thread [Next in Thread]