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MathGroup Archive 1998

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Problem with Eigenvalues[A]



I don't understand what is the problem with 

A={{a,0},{0,b}};
Eigenvalues[A];

in the Mathematica 2.2 as I always have the message

Eigenvectors::eival: Unable to find all roots of the characteristic
polynomial.

I don't have the same problem with the Mathematica 2.0. I'd appreciate
if someone could tell me how I can solve this problem.


thank you all

Joco Nicolau




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