Source: /cirosantilli/numpy-fft

= numpy.fft
{tag=Discrete Fourier transform}

https://numpy.org/doc/1.24/reference/routines.fft.html

\Image[https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/DFT_2sin%28t%29_%2B_cos%284t%29_25_points.svg/583px-DFT_2sin%28t%29_%2B_cos%284t%29_25_points.svg.png]
{height=600}
{title=DFT of $2sin(t) + cos(4t)$ with 25 points}
{description=Source code at: \a[numpy/fft_plot.py].}