# 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.

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2.

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/ˈfʊərɪˌeɪ/

**noun**

1.

the analysis of a periodic function into its simple sinusoidal or harmonic components, whose sum forms a Fourier series

Fourier analysis

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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