The technique of steepest descent can be used to generate the inverse of a function with standard analog or hybrid computer components. The resulting system is often free from the instability problems that plague inverse function generation by implicit computation. When the method is applied to...

This paper describes the method for conformal mapping with algebraic polynomials by the use of a repetitive differential analyser. Particular stress has been given to the application of conformal mapping to the problem of the stability of the feedback system. The determination of real and...

At present most approximate (discrete) solutions of time dependent hyperbolic equations are obtained by explicit finite difference methods, where the maximal allowable time step is given by a condition of numerical stability (i.e., the CFL condition). This report contains the development and the...

Within the kidney the transport of many solute species and water is accomplished by the parallel operation of several counter-current transport systems. The simulation of these processes requires the solution of a non-linear, two-point boundary value problem with many simultaneous equations....

This paper is concerned with the concepts of the computer simulation of cybernetic systems.

A method for the mechanization of data reduction associated with tensile testing of solid propellant specimens using a remotely located general purpose analog computer is described. Also included is a discussion of the theory and methods utilized within the computer program.

Finite differences analog models, built with normal computer elements, are studied, with regard to the simulation of distributed systems containing flowing fluids (cores of heterogeneous nuclear reactors, boilers, and heat exchangers in general).

The analysis of modulation processes from the viewpoint of differential equation theory has hardly progressed since the publication of Carson's original 1922 contributions. Furthermore, the scalar view of differential equations generally employed has perhaps impeded progress in these areas. For,...

In the optimization of a non-linear system one is generally faced with a complicated two point boundary value problem. This two point boundary value problem in the case of a linear system can be solved by breaking it into two one point boundary value problems, by going into the Riccati equation....