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

[Rik]

Follow-up Comment #11, bug #52425 (project octave):

@Marco: Perhaps no surprise since I have arpack-3.3.0, but running the Fortran
program produced:


 Ritz values and relative residuals
 ----------------------------------
               Col   1       Col   2
  Row   1:    2.08101D+00   1.22973D-15
  Row   2:    2.08101D+00   8.72666D-16
  Row   3:    5.91899D+00   3.52910D-16
  Row   4:    5.91899D+00   2.00270D-16
  
  
  _SDRV1 
  ====== 
  
  Size of the matrix is           20
  The number of Ritz values requested is            4
  The number of Arnoldi vectors generated (NCV) is           20
  What portion of the spectrum: BE
  The number of converged Ritz values is            4
  The number of Implicit Arnoldi update iterations taken is            1
  The number of OP*x is           20
  The convergence criterion is    1.1102230246251565E-016


@A.R.: Really no idea why the dev version of Octave should be failing.  Can
you try upgrading libarpack?



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