Fourier transform(redirected from Fourrier transform)
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Related to Fourrier transform: Fourier series, Fast Fourier transform, Discrete Fourier transform, Laplace transform
An operation that maps a function to its corresponding Fourier series or to an analogous continuous frequency distribution.
[After Baron Jean Baptiste Joseph Fourier.]
(Mathematics) an integral transform, used in many branches of science, of the form F(x) = [1/√(2π)]∫eixyf(y)dy, where the limits of integration are from –∞ to +∞ and the function F is the transform of the function f