in Lazarus?
https://github.com/merlinND/pascal-fast-fourier-transform/blob/master/pascal-fft.pas
Thanks... wow... I couldn't find anything... thank you so much.
Ok 👍
https://www.pcorner.com/list/PASCAL/FFT12.ZIP/INFO/
Thanks but this code looks really old...
also you can find some math library here: https://github.com/Fr0sT-Brutal/awesome-pascal#math
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