An Algol Procedure for the Fast Fourier Transform with Arbitrary Factors (Algorithm 339 [C6]) CACM November, 1968 Singleton, R. C. fast Fourier transform, multivariate Fourier transform, Fourier series, harmonic analysis, spectral analysis, orthogonal polynomials, orthogonal transformation, virtual core memory, permutation 3.15 3.83 5.12 5.14 CA681111 JB February 21, 1978 2:26 PM 1668 4 1668 1668 4 1668 1669 4 1668 1679 4 1668 1728 4 1668 2859 4 1668 1525 5 1668 1668 5 1668 1668 5 1668 1668 5 1668 1669 5 1668