Concept information
Preferred term
Fourier transform
Definition(s)
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In physics and mathematics, the Fourier transform (FT) is a transform that converts a function into a form that describes the frequencies present in the original function. The output of the transform is a complex-valued function of frequency. The term Fourier transform refers to both this complex-valued function and the mathematical operation. When a distinction needs to be made the Fourier transform is sometimes called the frequency domain representation of the original function. The Fourier transform is analogous to decomposing the sound of a musical chord into terms of the intensity of its constituent pitches.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fourier_transform)
Broader concept(s)
Narrower concept(s)
In other languages
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French
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transformation de Fourier
URI
http://data.loterre.fr/ark:/67375/PSR-B9K2X244-Z
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