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harmonic analysis

noun, Mathematics.
the calculation of Fourier series and their generalization.
the study of Fourier series and their generalization.
Also called Fourier analysis.
Origin of harmonic analysis
First recorded in 1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for harmonic analysis

harmonic analysis

the representation of a periodic function by means of the summation and integration of simple trigonometric functions
the study of this means of representation
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
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harmonic analysis in Science
harmonic analysis  
The study of functions given by a Fourier series or analogous representations, such as periodic functions and functions on topological groups.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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