# tensorplay.fft._transforms.hfftn Source: https://www.tensorplay.cn/docs/generated/tensorplay.fft._transforms.hfftn.html ```python tensorplay.fft._transforms.hfftn(input, s=None, dim=None, norm=None, *, out=None) ``` N-dimensional FFT of a Hermitian-symmetric spectrum; real output. The forward transform over the leading transformed dimensions, then [hfft()](/docs/generated/tensorplay.fft._transforms.hfft.html#tensorplay.fft._transforms.hfft) (conjugate + complex-to-real) along the final one.