Fast Fourier Transform
To improve program readability the subroutine listed here has been enhanced by a BASIC language list
formatter. We hope that this will prove helpful. The assignment statement 'LET' and indentations are not
required for most BASIC interpreters. The program flow-of-control is much clearer by observing that
loop operations, such as, FOR-NEXT are indented so the FOR and NEXT are directly above one another.
This program has been provided, to subscribers on record as of January 31, 1983, FREE of charge, ready
to run from within the Compu Trac system. One need only use the Apple II utility FID (File Developer)
to move the text file named STUDY.30 to any Compu Trac data disks. The file PROC.30 may also be
moved, for an example of a Procedure (number 30) using Fourier analysis.