[Octave-bug-tracker] [bug #53963] [octave forge] (lssa) Test

[Rafael Laboissiere]

URL:
  <http://savannah.gnu.org/bugs/?53963>

                 Summary: [octave forge] (lssa) Test
                 Project: GNU Octave
            Submitted by: rlaboiss
            Submitted on: Wed 23 May 2018 12:55:58 PM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: other
        Operating System: GNU/Linux

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Details:

The following unit test of fastlscomplex is failing on my system:


 maxfreq = 4 / ( 2 * pi );
 t = [0:0.008:8];
 x = ( 2 .* sin (maxfreq .* t) +
       3 .* sin ( (3 / 4) * maxfreq .* t)-
       0.5 .* sin ((1/4) * maxfreq .* t) -
       0.2 .* cos (maxfreq .* t) + 
       cos ((1/4) * maxfreq .* t));
 assert (fastlscomplex (t, x, maxfreq, 2, 2), 
       [(-0.400924546169395 - 2.371555305867469i), ...
        (1.218065147708429 - 2.256125004156890i), ... 
        (1.935428592212907 - 1.539488163739336i), ...
        (2.136692292751917 - 0.980532175174563i)], 5e-10);
!!!!! test failed
ASSERT errors for:  assert (fastlscomplex (t, x, maxfreq, 2,
2),[(-0.400924546169395 - 2.371555305867469i), (1.218065147708429 -
2.256125004156890i), (1.935428592212907 - 1.539488163739336i),
(2.136692292751917 - 0.980532175174563i)],5e-10)

  Location  |  Observed  |  Expected  |  Reason
    (1)      -0.40092-2.3716i -0.40092-2.3716i   Abs err 2.3279e-08 exceeds
tol 5e-10 by 2e-08
    (2)      1.2181-2.2561i 1.2181-2.2561i   Abs err 6.4488e-10 exceeds tol
5e-10 by 1e-10
    (3)      0.17512-2.3014i 1.9354-1.5395i   Abs err 1.9181 exceeds tol 5e-10
by 2
    (4)      1.0019-2.0248i 2.1367-0.98053i   Abs err 1.5422 exceeds tol 5e-10
by 2


I am using a Debian amd64 system with Octave 4.4.0 and g++ 7.3.0.  Here are
the values that I obtain from the code above:


  -0.400924541120278 - 2.371555283143016i
   1.218065147789378 - 2.256125003517112i
   0.175123244470191 - 2.301447978287065i
   1.001866643837121 - 2.024841512887229i





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