Barton Willis wrote:
> -----maxima-bounces at math.utexas.edu wrote: -----
>
> I saw the glitch too. Did you compare the numerical values near 80? There
> is a tiny(!)
> chance that the glitch is due to gnuplot, not in the data. I'd guess there
> is a
> greater chance that the stopping criteria for eigens_by_jacobi is
> subideal.
Indeed the glitch is in the numbers. The successive eigenvalues in the
region of interest are:
1.27, 1.37, 1.46, 1.48, 1.59, 1.70
you can see a slowing in the middle.
>
> Also, I think Maxima has alternative numerical eigenvalue code (translated
> from
> fortran). Maybe you could try that code to see if the glitch vanishes.
You mean linpack code ? I will try that.
>
> Barton
--
Michel Talon