To get an accuracy result of spectral densities using Fourier transformation for a domain with the size $n$ by $n$. The minimum size of the input domain is $2n-1$ by $2n - 1$.
Is it true? Sorry, maybe this is a stupid question. Thanks!
2026-03-26 12:52:46.1774529566
Minimum size to get an accuracy spectral density using Fourier transformation
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