FourierSeries`
FourierSeries`

NInverseDTFourierTransform

NInverseDTFourierTransform[expr,ω,n]

gives a numerical approximation to the inverse discrete time Fourier transform of expr evaluated at the integer n, where expr is a periodic function of ω with period 1.

Details and Options

Examples

Basic Examples  (1)

Numerical value for a sequence with a given discrete time Fourier transform:

Compare with the answer from symbolic evaluation: