how to plot the FFT of a list of values
Dan Stromberg
drsalists at gmail.com
Sat Dec 5 13:07:30 EST 2020
On Sat, Dec 5, 2020 at 9:20 AM Boris Dorestand <bdorestand at example.com>
wrote:
> I have 16 values of the period sequence 1, 2, 4, 8, 1, 2, 4, 8, ... I
> compute its fourier transform using
>
> >>> from scipy import fft, ifft
> >>> x = [1,2,4,8,1,2,4,8]
> >>> fft(x)
> array([ 30. +0.j, 0. +0.j, -6.+12.j, 0. +0.j, -10. +0.j, 0. +0.j,
> -6.-12.j, 0. +0.j])
>
> Now how can I plot these values? I would like to plot 16 values. What
> do I need to do here? Can you show an example?
>
Maybe
https://stackoverflow.com/questions/17445720/how-to-plot-complex-numbers-argand-diagram-using-matplotlib
?
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