class EigenvalueSym extends Eigen with Error
The EigenvalueSym class is used to find the eigenvalues of an 'n' by 'n'
symmetric matrix 'a' using an iterative technique, the Symmetric 'QR' Algorithm.
- See also
Algorithm 8.3.3 in Matrix Computations. Caveats: (1) it will not handle eigenvalues that are complex numbers, (2) it uses a simple shifting strategy that may slow convergence.
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