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Fourier transform
[ foor-ee-ey trans-fawrm, -ee-er ]
noun
, Mathematics.
- a mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines. : FT
Fourier transform
noun
- an integral transform, used in many branches of science, of the form F( x ) = [1/√(2π)]ʃe ixyf( y )d y , where the limits of integration are from –∞ to +∞ and the function F is the transform of the function f
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Word History and Origins
Origin of Fourier transform1
First recorded in 1920–25; Fourier analysis
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