I’m having the following problem

My question is:

in

are samples [0, 512] the positive frequencies and [513, 1024] the negative frequencies (in two-sided FFT).

I.e. that to be correct the plot should actually look like [513, 1024] is [-512, 0] and [0,512] is [0,512], but is this the np.fft.fft way to return the negative frequencies (i.e in the latter half of the fft result)?

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