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InverseDTFourierTransform

InverseDTFourierTransform[expr, , n]
gives the inverse discrete time Fourier transform of expr, where expr is a periodic function of with period 1.
  • The inverse discrete time Fourier transform of expr is by default defined to be .
  • If n is numeric, it should be an explicit integer.
  • Different choices for the definition of the inverse discrete time Fourier transform can be specified using the option FourierParameters.
  • With the setting FourierParameters->{a, b}, expr is assumed to have a period of , and the inverse discrete time Fourier transform computed by InverseDTFourierTransform is .