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MathGroup Archive 2007

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Re: Eigensystem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73318] Re: Eigensystem
  • From: "Roman" <rschmied at gmail.com>
  • Date: Mon, 12 Feb 2007 05:00:29 -0500 (EST)
  • References: <eqmcbn$bbe$1@smc.vnet.net>

Vadim:

If you have a numerical matrix A, then, instead of asking for
        Eigensystem[A]
you can ask for
        Eigensystem[SetPrecision[A, 50]]

Roman.

On Feb 11, 7:16 am, "Vadim N. Smelyanskiy" <v... at email.arc.nasa.gov>
wrote:
> Dear Sir/Madam:
>
> I am a user of Mathematica 5.2 for Windows.
>
> Please can you advice me how to run Eigensystem function so that its result
> has precision (say 50)
>
> that is much higher then the Machine Precision.
>
> Thank you
>
> Vadim
>
> Vadim N. Smelyanskiy, PhD
>
> NASA Ames Research Center
>
> Discovery and System Health Area
>
> Intelligent Systems Division
>
> Mail Stop 269-3
>
> Moffett Field, CA 94035-1000
>
> Tel.: 650-604-2261
>
> Fax: 650-604-4036




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