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kidia
04-09-2007, 03:47 PM
I need help on this one,Given the symmetric matrix A=
|0 2 2|
|2 0 2|
|2 2 0|

Find an orthogonal matrix P so that PAP^-1 is a diagonal matrix.

Unco
04-09-2007, 05:35 PM
Find the eigenvalues and eigenvectors of A. The columns of P are the eigenvectors.