Re: high-precision eigenvalue solver

wakun@xxxxxxxxx writes:

> Hi there,
> I am working with a eigenvalue system. In my case, I want a very
> high-precision method in solving the system. I try to use the matlab
> function, eig, to solve such system but the result is not ideal. Anyone
> knows a better algorithm give more high-precision? Thanks.
Hello,
you should specify more precisely, what happens with your system.
Especially, why you think that the result of "eig" is not "ideal".
Maybe you are close to a multiple eigenvalue, where the standard codes
cannot give precise results.
I could also imagine that already your matrix is not sufficiently
accurate.
Alois
.

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