# nonlinear

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## nonlinear

[′nän‚lin·ē·ər]
(physics)
Pertaining to a response which is other than directly or inversely proportional to a given variable.

## nonlinear

(Scientific computation) A property of a system whose output is not proportional to its input. For example, a transistor has a region of input voltages for which its output voltage is found by multiplying the input voltage by the gain of the transistor. Outside this region though, the transistor behaves non-linearly, meaning that it does not obey this simple equation. The behaviour of a system containing non-linear components is thus harder to model and to predict.

## nonlinear

A system in which the output is not a uniform relationship to the input. Contrast with linear.
References in periodicals archive ?
Wiener models are also used, for example as a robust nonlinear internal model control of stable Wiener systems , or block-oriented feedforward control with demonstration to Wiener modelling , or modelling of memristor-based chaotic systems using nonlinear Wiener adaptive filters .
The goal of this paper is to develop an analysis method for electromagnetic field coupling to microstrip line connected with nonlinear components and then obtain the output power from this nonlinear component towards the next element.
Hereman: Symbolic computation of hyperbolic tangent solutions for nonlinear differential-difference equations, Comput.
Scientists have recently begun to discover mechanisms to explain hormesis and other nonlinear dose responses.
Cunningham, Introduction to nonlinear analysis, McGraw-Hill, New York, 1958.
Stacy describes nonlinear systems as having three zones of behavior:
When writing nonlinear script sections, make sure all the possible iterations flow together.
This book, then, is an introduction to nonlinear modeling.
The non-linear bearings have a cubic non-linear term (Genta 1993), where the force-displacement relation for a nonlinear spring element can be written as a function of the complex displacement z by the law
of Singapore) explain the properties of microscopic particles in nonlinear systems and the principles of the nonlinear quantum mechanical theory for an audience ranging from researchers to upper level undergraduate students.
Among the most intriguing--and perhaps most useful--materials of this sort are those exhibiting nonlinear optical behavior that increases the frequency of light passing through them.

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