A Note on the Computation of Eigenvalues and Vectors of Hermitean Matrices
T. C. Chen, Ralph A. Willoughby · IBM Journal of Research and Development · 1958
The matrix eigenvalue problem, so important in physics, chemistry and engineering, is straightforward in principle. In practice, considerations of numerical accuracy and speed put a severe restriction on the class and size of solvable matrices. Modern digital computers necessarily play a vital role in the solution for large matrices.