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FOURIER SERIES PACKAGE SYMBOL
NInverseDTFourierTransform
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 
with period 1.
Details
- To use
, you first need to load the Fourier Series Package using Needs["FourierSeries`"]. - The numerical approximation to the inverse discrete time Fourier transform of expr is by default defined to be
NIntegrate[expr 
n, {, -
, }]. - 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 
is 
NIntegrate[expr bn, {, -
, 
}]. - The parameter b in the setting FourierParameters->{a, b} must be numeric.
- In addition to the option FourierParameters,
can also accept the options available to NIntegrate. These options are passed directly to NIntegrate.
