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From: | Rik |
Subject: | [Octave-bug-tracker] [bug #50546] wrong result from eigs function |
Date: | Thu, 16 Mar 2017 17:16:03 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0 |
Update of bug #50546 (project octave): Status: Patch Submitted => Fixed Open/Closed: Open => Closed Operating System: Microsoft Windows => Any _______________________________________________________ Follow-up Comment #4: I tested the eigenvalues script all the way back to Octave-3.2.4 and it always gets an absurd result for the last method. I conclude that the generalized problem has been incorrect in Octave for years. I pushed the patch to the stable branch (http://hg.savannah.gnu.org/hgweb/octave/rev/3b2dbed26762) and it will be a part of the next bug fix release 4.2.2. When I run the eigenvalues.m test script I find that the methods have very different accuracy. error = 8.4315e-07 error = 9.1345e-13 error = 2.7325e-11 Is this expected and acceptable, or is there something else that needs to change in Octave so the different methods are roughly equal in accuracy? _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?50546> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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