Harmonograph
Harmonograph
Wikipedia
https://en.wikipedia.org/wiki/Harmonograph#Computer-generated_harmonograph_figure
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x = A[0]*np.sin(t*f[0])*np.exp(-d[0]*t) + A[1]*np.sin(t*f[1])*np.exp(-d[1]*t) y = A[2]*np.sin(t*f[2])*np.exp(-d[2]*t) + A[3]*np.sin(t*f[3])*np.exp(-d[3]*t) |
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