From: Ada novice <shai.lesh@gmx.com>
Cc: nma@12000.org
Subject: Re: ANN: Ada 2005 Math Extensions 20120712
Date: Sun, 29 Jul 2012 08:02:32 -0700 (PDT)
Date: 2012-07-29T08:02:32-07:00 [thread overview]
Message-ID: <f25cc2fe-2dc7-4325-a90d-6fe9665aca1b@googlegroups.com> (raw)
In-Reply-To: <jv3imm$o6h$1@speranza.aioe.org>
On Sunday, July 29, 2012 3:52:08 PM UTC+1, Nasser M. Abbasi wrote:
> On 7/29/2012 9:34 AM, Ada novice wrote:
Yes, different software can produce different eigenvectors. It depends on the algorithm used. I remember (but not 100% sure) that in Matlab, [V,D] = eig(A,B) and [V,D] = eig(A,B,'qz')
where
'qz'
ignores the symmetry, if any, and uses the QZ algorithm as it would for nonsymmetric (non-Hermitian) A and B
produced different eigenvectors.
Eigenvalues are bound to be the same in any software independent of the algorithm used as they represent an intrinsic property of a system.
YC
next prev parent reply other threads:[~2012-07-29 15:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-12 19:44 ANN: Ada 2005 Math Extensions 20120712 Simon Wright
2012-07-13 11:12 ` Ken Thomas
2012-07-14 8:13 ` Ada novice
2012-07-14 10:43 ` Simon Wright
2012-07-14 14:18 ` Ada novice
2012-07-27 19:23 ` Ada novice
2012-07-27 21:03 ` Simon Wright
2012-07-28 13:01 ` Ada novice
2012-07-28 19:10 ` Simon Wright
2012-07-28 19:33 ` Simon Wright
2012-07-29 14:05 ` Ada novice
2012-07-29 14:22 ` Nasser M. Abbasi
2012-07-29 14:34 ` Ada novice
2012-07-29 14:52 ` Nasser M. Abbasi
2012-07-29 15:02 ` Ada novice [this message]
2012-07-29 15:31 ` Ada novice
2012-07-30 18:59 ` Ada novice
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