Eigenvectors

Eigenvectors[m] gives a list of the eigenvectors of the square matrix m. 

Eigenvectors[{m,a}] gives the generalized eigenvectors of m with respect to a. 

Eigenvectors[m,k] gives the first k eigenvectors of m. 

Eigenvectors[{m,a},k] gives the first k generalized eigenvectors.

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