readme

傅立叶变化

FFT      C      19157   6-06-91  calculates discrete Fourier transform
FFT      DOC     6008   6-06-91   of a time domain function
FFT      EXE    35286   6-06-91    (senses 8087)
D        T       3102   3-20-87     sample input for fft
D        F2     12596   6-06-91      resulting transform (no windowing)
D        F3     12615   6-06-91       resulting transform (with windowing)
IFFT     C      10172   6-06-91  calculates inverse discrete Fourier
IFFT     DOC     1927   6-06-91   transform of a frequency function
IFFT     EXE    31468   6-06-91    (senses 8087)
D        F       3190   3-20-87     (sample input for ifft)
RI2M     C       3005   6-06-91  read file of (freq, real, imag) triples,
RI2M     DOC      781   6-06-91   writes file of (freq, magnitude) pairs
RI2M     EXE    28302   6-06-91    which can be displayed by GRAPH
ARGS     C       4022   6-06-91  parses command line switches
MAKEFILE          700   6-06-91  compilation instructions
FFT      FIL      145   6-06-91  file list for pkzip
README           1182   6-06-91  this file

To use GRAPH to display the effect of supergaussian windowing:

C>graph d.f2 d.f3 -ylm -xl -m 30 10