# sine wave

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## Sine wave

A wave having a form which, if plotted, would be the same as that of a trigonometric sine or cosine function. The sine wave may be thought of as the projection on a plane of the path of a point moving around a circle at uniform speed. It is characteristic of one-dimensional vibrations and one-dimensional waves having no dissipation. *See* Harmonic motion

The sine wave is the basic function employed in harmonic analysis. It can be shown that any complex motion in a one-dimensional system can be described as the superposition of sine waves having certain amplitude and phase relationships. The technique for determining these relationships is known as Fourier analysis. *See* Wave equation, Wave motion

McGraw-Hill Concise Encyclopedia of Physics. © 2002 by The McGraw-Hill Companies, Inc.

## sine wave

[′sīn ‚wāv] (physics)

A wave whose amplitude varies as the sine of a linear function of time. Also known as sinusoidal wave.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## sine wave

A wave form containing only one frequency; the amplitude of the periodic oscillation is a sinusoidal function of time. Also see

**pure tone.**McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

## sine wave

(mathematics)A waveform of a single constant frequency and
amplitude that continues for all time.

Compare wavelet.

Compare wavelet.

This article is provided by FOLDOC - Free Online Dictionary of Computing (

**foldoc.org**)## sine wave

A continuous, uniform wave with a constant frequency and amplitude. See wavelength.A Sine Wave |
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