Calculates the Fast Fourier Transform (FFT) and the Inverse Fast Fourier Transform (IFFT). Transcription to Oberon of a Turbo Pascal program by Don Cross.
See Don Cross's Discrete Fast Fourier Transforms for a FFT Tutorial and for Turbo Pascal and C/C++ versions.
Maintainer: Emil Zeller
2. Use Watson to obtain a list of available functions.
3. A Test procedure is attached.
19 Jan 2001 - Copyright © 2000 ETH Zürich. All rights reserved.