KnowraFast Fourier transformLinked fromLinked fromThe 14 pages that link to Fast Fourier transform, each with the reason it gives.All 14Broader topic 3Related 8Compared with 3Fourier transformBroader topic: It accelerates practical calculations but is an algorithm, not a different transform.Root of unityBroader topic: Its factorization exploits identities among roots of unity.Harmonic analysisBroader topic: It makes frequency analysis computationally practical for large datasets.