adtIFFT
adtIFFT(l_list) =>l_result/nil
Description
Calculates the inverse discrete Fourier transform of the specified list.
Arguments
|
List of values for which you want to generate the inverse discrete Fourier transform. |
Value Returned
|
Inverse discrete Fourier transform cannot be calculated because of an error. |
Examples
The following examples calculate inverse discrete Fourier transform of the specified values.
adtIFFT(list(complex(20, 0) complex(0.427051, -5.8451) complex(-2.92705, -7.55545) complex(-2.92705, 7.55545) complex(0.427051, 5.8451)))
=> (complex(3, 0) complex(9, 0) complex(2, 0) complex(5, 0) complex(0.999999, 0))
adtIFFT(adtFFT(list(3 9 2 5 1)))
=> (complex(3, 0) complex(9, 0) complex(2, 0) complex(5, 0) complex(1, 0))
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