A Note on the LU Factorization of a Symmetric Matrix CACM May, 1975 Evans, D. J. Hatzopoulos, M. symmetric matrices, factorization, test matrices, matrix inversion, separable systems 5.14 CA750509 JB January 9, 1978 2:26 PM 2758 5 2758 2758 5 2758 2758 5 2758