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Find a numerical approximation for a Fourier transform
ResourceFunction["NFourierTransform"][expr,t,ω] gives a numerical approximation to the Fourier transform of expr evaluated at the numerical value ω, where expr is a function of t. |
Numerical Fourier transform for a box function:
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Compare with the answer from symbolic evaluation:
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Wolfram Language 11.3 (March 2018) or above
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