Anything related to Fourier series, Fourier transform and similar mathematical tools used to analyze the frequency content of a signal.
Anything related to Fourier series, Fourier transform and similar mathematical tools used to analyze the frequency content of a signal.
Fourier series and transform are named after French mathematician Jean Baptiste J. Fourier (1768-1830), who gave great contributions to trigonometric series theory while he was studying heat transfer in solid bodies.
See also Wikipedia on Fourier series and Fourier transform.
