NDTFourierTransform[expr, n, ] gives a numerical approximation to the discrete time Fourier transform of expr evaluated at the numerical value , where expr is a function of n.
To use NDTFourierTransform, you first need to load the Fourier Series Package using Needs["FourierSeries`"].
The numerical approximation to the discrete time Fourier transform of expr is by default defined to be NSum[expr-n, {n, -, }].
Different choices for the definition of the discrete time Fourier transform can be specified using the option FourierParameters.
With the setting FourierParameters->{a, b}, the discrete time Fourier transform computed by NDTFourierTransform is .
The parameter b in the setting FourierParameters->{a, b} must be numeric.
In addition to the option FourierParameters, NDTFourierTransform can also accept the options available to NSum. These options are passed directly to NSum.
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n 
, {n, -
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EXAMPLES
Basic Examples 
