5.27.2014

Fast Discrete Fourier Transform - Function : FFT

Function : FFT - Fast Discrete Fourier Transform

Description

    Performs the Fast Fourier Transform of an array.

Usage

     fft(z, inverse = FALSE)
     

Arguments

  • z - a real or complex array containing the values to be transformed.
  • inverse - if TRUE, the unnormalized inverse transform is computed (the inverse has a + in the exponent of e, but here, we do not divide by 1/length(x)).