Manipulation of Algebraic Expressions An algorithm for algebraically manipulating expressions of the form SUM{CiPi, i=1,...,n}; has been developed in conjunction with the development of programs for systems analysis problems. This algorithm enablesus to derive over-all system transfer functions from algebraically described block diagrams of any linear continuous multi-loop feedback system. The machine representation of the derived expression, is, by virtue of the algorithm, in a form which simplifies the task of compiling. The algorithm was developed for a particular purpose in connection with system analysis studies. However, its application as a mathematical device extends far beyond the confines of the original problem. CACM September, 1961 Rom, A. R. M. CA610910 JB March 16, 1978 9:36 PM 964 5 284 1396 5 284 284 5 284 284 5 284 284 5 284 964 6 284 1028 6 284 1029 6 284 1083 6 284 1132 6 284 1214 6 284 1278 6 284 1334 6 284 1365 6 284 1386 6 284 1387 6 284 1388 6 284 1392 6 284 1393 6 284 1394 6 284 1395 6 284 1396 6 284 1397 6 284 1496 6 284 284 6 284 284 6 284 407 6 284 3199 6 284 3200 6 284 3201 6 284 3202 6 284 3203 6 284 3204 6 284 561 6 284 561 6 284 730 6 284 759 6 284