|
From: | Marco Caliari |
Subject: | [Octave-bug-tracker] [bug #49523] eigs (R2013b and later) uses NaNs, not zeros, for unconverged Ritz values |
Date: | Wed, 12 Apr 2017 03:37:11 -0400 (EDT) |
User-agent: | Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 |
Follow-up Comment #11, bug #49523 (project octave): @Rik: If I set them to Complex (NaN, 0.), the result will be somethinkg like (there are other complex eigenvalues) ans = -0.00000 - 3.32975i -0.00000 + 3.32975i NaN + 0.00000i or (all the remaining eigenvalues are real) ans = 3.2154 NaN NaN If I set them to Complex (NaN, NaN), the result will be somethinkg like ans = -0.00000 - 3.32975i -0.00000 + 3.32975i NaN + NaNi or ans = 3.2154 + 0.00000i NaN + NaNi NaN + NaNi If we want ans = -0.00000 - 3.32975i -0.00000 + 3.32975i NaN + NaNi or ans = 3.2154 NaN NaN we have to check the imaginary part of the converged eigenvalues. I mean, it is not possible to set "without the complex [imaginary] part". _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?49523> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
[Prev in Thread] | Current Thread | [Next in Thread] |