# nonlinear

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Related to nonlinear: nonlinear control system, Nonlinear optics, Nonlinear programming, Nonlinear regression

## 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.Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.

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