|1.||the representation of a periodic function by means of the summation and integration of simple trigonometric functions|
|2.||the study of this means of representation|
The study of functions given by a Fourier series or analogous representations, such as periodic functions and functions on topological groups.
mathematical procedure for describing and analyzing phenomena of a periodically recurrent nature. Many complex problems have been reduced to manageable terms by the technique of breaking complicated mathematical curves into sums of comparatively simple components.
Learn more about harmonic analysis with a free trial on Britannica.com.