NDTFourierTransform

NDTFourierTransform[expr,n,ω]
gives a numerical approximation to the discrete time Fourier transform of expr evaluated at the numerical value ω, where expr is a function of n.

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Basic Examples  (1)Basic Examples  (1)

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Different definitions for numerical approximation of a discrete time Fourier transform:

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Compare with the answer from symbolic evaluation with FourierSequenceTransform:

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