References

1

COOLEY, J. W., AND TUKEY, J. W.
An algorithm for the machine calculation of complex fourier series.
Mathematics of Computation 19, 4 (April 1965), 297-301.

2

OPPENHEIM, A. V., AND SCHAFER, R. W.
Discrete-Time Signal Processing.
Prentice Hall, Englewood Cliffs, NJ 07632, 1989.

3

PRESS, W. H., FLANNERY, B. P., TEUKOLSKY, S. A., AND VETTERLING, W. T.
Numerical Recipes in C.
Cambridge University Press, 1988.