[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: QR factorization
|
From: |
Ólafur Jens Sigurðsson |
|
Subject: |
Re: QR factorization |
|
Date: |
Fri, 28 Mar 2008 23:28:09 +0100 |
|
User-agent: |
Mutt/1.5.17+20080114 (2008-01-14) |
On Fri, Mar 28, 2008 at 09:04:48PM +0100, Moritz Borgmann wrote:
> look at the R matrix. Because A is rank-1, R has only one nonzero row
> (the first). Thus, the second and third columns of Q can be chosen
> arbitrarily as long as the columns of Q are orthonormal. There is
> simply no unique solution.
But should it not provide the same results since they are using the
same functions from LAPACK?
Or are they not using the same functions? Or are they called with some
extra options that differ between the two programs?
Oli