Re: high-precision eigenvalue solver


> Try Maple, which can give you arbitrary precision. Of course it will
> be slower.
>
> Robert Israel israel@xxxxxxxxxxx
> Department of Mathematics http://www.math.ubc.ca/~israel
> University of British Columbia Vancouver, BC, Canada
I try ang it improves the result a little bit. However, it still not
accurate enough. I guess it's due to the QR/QZ algorithm. Does anyone
know what the order of QR/QZ algorithm is? Someone told me to try
fourth-order diagonalization algorithm, any idea?

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