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114. EIGQR: Eigenvalues and Eigenvectors of a Real
Symmetric Matrix
by Robert B. Davidson, Department of Chemistry, Princeton University, Princeton, New Jersey 08540 This program transforms the given matrix to tridiagonal form using Householder's method. It then finds the eigenvalues and eigenvectors of the transformed matrix using the QR algorithm. FORTRAN IV Lines of Code: 271 Recommended Citation: R. B. Davidson, QCPE 11, 114 (1968). |