[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Octave-bug-tracker] [bug #31479] Crash & bugs in eigs
From: |
John W. Eaton |
Subject: |
[Octave-bug-tracker] [bug #31479] Crash & bugs in eigs |
Date: |
Fri, 28 Jan 2011 19:33:55 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20110107 Iceweasel/3.5.16 (like Firefox/3.5.16) |
Follow-up Comment #12, bug #31479 (project octave):
I've checked in the changes. Unfortunately, just after checking them in, I
noticed that I'm sometimes getting this:
A = [1,0,0,-1;0,1,0,0;0,0,1,0;0,0,2,1]; [vecs,vals,f] = eigs(A,1)
vecs =
-1.0000e+00
-5.8044e-12
-3.9807e-12
1.9951e-06
vals = 1.0000e+00 + 3.4557e-06i
f = 0
error: eigs: error -8 in dneupd
This is quite odd, as I thought I was using the same sources for ARPACK as
the debian package, which is what I was using before. I'll try to debug
later.
The comments in dneupd say that error -8 is
Error return from calculation of a real Schur form.
Informational error from LAPACK routine dlahqr
Hmm...
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?31479>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/27
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/27
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, Rik, 2011/01/28
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/28
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs,
John W. Eaton <=
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, Rik, 2011/01/28
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, Thomas Weber, 2011/01/28
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/28
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/29
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, Rik, 2011/01/29
- [Octave-bug-tracker] [bug #31479] Crash & bugs in eigs, Rik, 2011/01/29
- Message not available
- [Octave-bug-tracker] Re: [bug #31479] Crash & bugs in eigs, John W. Eaton, 2011/01/31
[Octave-bug-tracker] Re: [bug #31479] Crash & bugs in eigs, octave, 2011/01/28