Adjustment of the Inverse of a Symmetric Matrix when Two Symmetric Elements are Changed (Algorithm 325 [F1]) CACM February, 1968 Zielke, G. symmetric matrix, matrix inverse, matrix perturbation, matrix modification 5.14 CA680207 JB February 23, 1978 12:01 PM 1775 5 1775 1775 5 1775 1775 5 1775