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[Octave-bug-tracker] [bug #52425] eigs function regresses


From: A.R. Burgers
Subject: [Octave-bug-tracker] [bug #52425] eigs function regresses
Date: Sun, 19 Nov 2017 05:08:15 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0

Follow-up Comment #4, bug #52425 (project octave):

It goes wrong for me in r24228, r24227 is still OK


24227
version = 4.3.0+
hg_hd = 0da1bdfbfacb+
PASSES 162 out of 162 tests

24228
version = 4.3.0+
hg_hd = 1310d8b50ec2+
***** testif HAVE_ARPACK
 d1 = eigs (A, k, "be");
 assert (d1, d2([1:floor(k/2), (end - ceil(k/2) + 1):end]), 1e-11);
!!!!! test failed
ASSERT errors for:  assert (d1,d2 ([1:floor(k / 2), (end - ceil(k / 2) +
1):end]),1e-11)

  Location  |  Observed  |  Expected  |  Reason
    (1)         5.6825       2.081       Abs err 3.6015 exceeds tol 1e-11 by
4
    (2)         5.6825       2.081       Abs err 3.6015 exceeds tol 1e-11 by
4


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