Issue No. 05 - May (1973 vol. 22)
C.K. Yuen , Computer Centre, Australian National University
Concepts of group theory are used to explain the difference between two major fast Fourier transform (FFT) algorithms and the relation between FFT and fast Walsh transforms.
Fast Fourier transform, group theory.
C. Yuen, "On the Twiddling Factors," in IEEE Transactions on Computers, vol. 22, no. , pp. 544-545, 1973.