Response of nonlinear systems to unusual inputs
Joglar, José António
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Handling nonlinear systems is not a simple task, especially if a computer is not available. Generally, although a precise result for every case would be preferable an approximate solution is usually sufficient for most engineering solutions. R. Boxer and S. Thaler developed a technique  presented in Proceedings of IRE that allow one to obtain the response of linear and nonlinear systems, without knowledge of the roots of the system characteristic equation. The aim of this work is to test this technique in obtaining the solution of several time varying linear equations and to produce a computer program that improves the solution accuracy and ease of use.
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