Twiddle Factor

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Geliefert zwischen Di., 27.01.2026 und Mi., 28.01.2026

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High Quality Content by WIKIPEDIA articles! A twiddle factor, in fast Fourier transform (FFT) algorithms, is any of the trigonometric constant coefficients that are multiplied by the data in the course of the algorithm. This term was apparently coined by Gentleman & Sande in 1966, and has since become widespread in thousands of papers of the FFT literature. More specifically, "twiddle factors" originally referred to the root-of-unity complex multiplicative constants in the butterfly operations of the Cooley-Tukey FFT algorithm, used to recursively combine smaller discrete Fourier transforms. This remains the term's most common meaning, but it may also be used for any data-independent multiplicative constant in an FFT.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786131141911
    • Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
    • EAN 9786131141911
    • Format Fachbuch
    • Titel Twiddle Factor
    • Herausgeber Betascript Publishing
    • Anzahl Seiten 92
    • Genre Mathematik

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