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Fourier analysis

noun

, Physics, Mathematics.
  1. the expression of any periodic function as a sum of sine and cosine functions, as in an electromagnetic wave function. Compare Fourier series.

Fourier analysis

/ ˈfʊərɪˌeɪ /

noun

  1. the analysis of a periodic function into its simple sinusoidal or harmonic components, whose sum forms a Fourier series
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Fourier analysis

  1. The branch of mathematics concerned with the approximation of periodic functions by the Fourier series and with generalizations of such approximations to a wider class of functions.
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Word History and Origins

Origin of Fourier analysis1

First recorded in 1925–30; named after J.B.J. Fourier
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Word History and Origins

Origin of Fourier analysis1

C19: named after Baron Jean Baptiste Joseph Fourier (1768–1830), French mathematician, Egyptologist, and administrator

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