DFT conventions: NumPy vs Mathematica

Just as there are multiple conventions for defining the Fourier transform, there are multiple conventions for defining the discrete Fourier transform (DFT), better known as the fast Fourier transform (FFT). [1] If you don’t know that there are multiple conventions, you could be quite puzzled when the output of a FFT doesn’t match your expectations. […] The post DFT conventions: NumPy vs Mathematica first appeared on John D. Cook....

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