Re: high-precision eigenvalue solver


<wakun@xxxxxxxxx> wrote in message
news:1134389385.841224.3320@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> 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.

the QR algorithm is the standard one for dense matrices. i'm not sure how
matlab works but anything requiring high precision i'd guess would have to
use arbitrary precision arithmetic - maybe matlab doesnt i dont know

>


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