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svds.m: Overhaul code while fixing bug #29721. Return smallest singular values if sigma == 0 (Bug #29721). Avoid calculating U and V matrices unless requested. Correctly handle zero matrix input Improve documentation string.
author Rik <octave@nomad.inbox5.com>
date Sun, 30 May 2010 13:45:50 -0700
parents 82be108cc558
children
line wrap: on
line source

      subroutine xscnrm2 (n, x, incx, retval)
      real scnrm2, retval
      complex x(*)
      integer n, incx
      retval = scnrm2 (n, x, incx)
      return
      end