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So, to calculate the eigenvalues we have to go back to the definition: det(A - IL) = 0 -- note: I'm naming L for Lambdas. Anyhow, you basically subtract each diagonal entry by lambda and then take the determinate and solve for lambda.
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Eigenvalue of a Matrix I
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So, to calculate the eigenvalues we have to go back to the definition: det(A - IL) = 0 -- note: I'm naming L for Lambdas. Anyhow, you basically subtract each diagonal entry by lambda and then take the determinate and solve for lambda.