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latest (dev)2026-09-08 v1.0.02026-09-06

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tensorplay.fft._frequency.fftshift

tensorplay.fft._frequency.fftshift(input, dim=None)[source]

Re-orders an N-D FFT output so the zero-frequency term is centered.

Shifts by +n // 2 along each (or the given) dimension(s).

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tensorplay.fft._frequency.fftfreq

DFT sample frequencies (cycles/unit): [0, 1, ..., n/2-1, -n/2, ..., -1] / (n*d) .

tensorplay.fft._frequency.ifftshift

Inverse of fftshift() ; shifts by -(n // 2) (odd-safe).

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