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How Can I Numerically Calculate All Eigenvectors of a $n \times N$ Complex Tridiagonal Matrix?

Fast Algorithms to Find the Eigenvalues of Some Matrix on Intervals of Interest

SVD for Finding the Largest Eigenvalue of a 50x50 Matrix -- Am I Wasting Significant Amounts of Time?

Using Algebraically Smallest Eigenvalues to Find Smallest in Magnitude Eigenvalues

Approximate Spectrum of a Large Matrix

Parallel Algorithm for Eigensystem of a Tridiagonal Matrix

Find a Set of Linearly Independent Columns in a $m\times N$ Matrix