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NInverseFourierTransform


gives a numerical approximation to the inverse Fourier transform of expr evaluated at the numerical value t, where expr is a function of .
  • The numerical approximation to the inverse Fourier transform of expr is by default defined to be NIntegrate[expr - t, {, -, }].
  • Different choices for the definition of the inverse Fourier transform can be specified using the option FourierParameters.
Numerical inverse Fourier transform for a polynomial-exponential function:
Compare with the answer from symbolic evaluation:
Needs["FourierSeries`"]
Numerical inverse Fourier transform for a polynomial-exponential function:
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Compare with the answer from symbolic evaluation:
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