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Latest development documentation · Updated 2026-10-15
tensorplay.fft._frequency API
Functions 4
fftfreq
functionFull reference ↗- tensorplay.fft._frequency.fftfreq(n, d=1.0, *, out=None, dtype=None, layout=None, device=None, requires_grad=False)[source]
DFT sample frequencies (cycles/unit):
[0, 1, ..., (n-1)//2, -(n//2), ..., -1] / (n*d).
fftshift
functionFull reference ↗- tensorplay.fft._frequency.fftshift(input, dim=None)[source]
Re-orders an N-D FFT output so the zero-frequency term is centered.
Rolls by
n // 2along each (or the given) dimension(s).
ifftshift
functionFull reference ↗- tensorplay.fft._frequency.ifftshift(input, dim=None)[source]
Inverse of
fftshift(); rolls by(n + 1) // 2(odd-safe).
rfftfreq
functionFull reference ↗- tensorplay.fft._frequency.rfftfreq(n, d=1.0, *, out=None, dtype=None, layout=None, device=None, requires_grad=False)[source]
Sample frequencies for
rfft()/one-sided transforms:[0..n//2] / (n*d).
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