A surname.

The cooperative socialistic system of Charles Fourier, a Frenchman, who recommended the reorganization of society into small communities, living in common.

(mathematical analysis, harmonic analysis, physics, electrical engineering) A particular integral transform that when applied to a function of time (such as a signal), converts the function to one that plots the original function's frequency composition; the resultant function of such a conversion.

(mathematics, mathematical analysis) Any series resulting from the decomposition of a periodic function into terms involving cosines and sines (or, equivalently, complex exponentials).

plural of Fourier transform

(mathematics) A field of study concerned with the representation or approximation of general functions, such as arbitrary waveforms, by sums of trigonometric functions.

A member of a certain family of algorithms for efficiently computing the discrete Fourier transform of data. / An instance of performing one of these algorithms.

(mathematics) A mathematical operation that transforms a function for a discrete or continuous spectrum into a function for the amplitude with the given spectrum; an inverse transform of the Fourier transform.

plural of discrete Fourier transform

(mathematics) The process of converting a discrete time-based function into its frequency-based representation.