MathGroup Archive 1997

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Eigenvalues in Mathematica ..

  • To: mathgroup at
  • Subject: [mg6668] Eigenvalues in Mathematica ..
  • From: cmchung at (Chung Cheong Ming)
  • Date: Wed, 9 Apr 1997 09:15:13 -0400 (EDT)
  • Organization: Engineering Faculty CUHK
  • Sender: owner-wri-mathgroup at

Hello everybody,

I am currently working on a simple (sometimes not so simple) problem
about finding the eigenvalues of a square matrix m using Eigenvalues[m].

Take m = {{2,a},{a,2}}, thus m is symmetric and I vary the number a as I
want.  The problem is how accurate Mathematica can give or I should say
how accurate the machine where Mathematica is installed can give?  What
if the size of m gets large with entries very small.  any comments?


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