Digital computer analysis of closed-loop systems using the number series approach

THE DEVELOPMENT of the high-speed digital computer is causing a revision of rather rigidly held concepts. For instance, it is possible to simulate completely an analog computer1 on a large-scale digital computer and achieve not only an increase in solution accuracy, but an improvement in solution speed. On the very large machines, also, one may increase the problem size beyond that possible in most analog facilities, and still retain analog computer programming ease.