Meaning of Fourier analysis

Fou'rier anal"ysis

Pronunciation: [key]
— Physics, Math. Physics,Math.
  1. the expression of any periodic function as a sum of sine and cosine functions, as in an electromagnetic wave function. Cf. Fourier series.
  2. See
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.