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Function torch::fft::ihfft

Function Documentation

inline Tensor torch::fft::ihfft(const Tensor &self, std::optional<SymInt> n = std::nullopt, int64_t dim = -1, std::optional<c10::string_view> norm = std::nullopt)

Computes the inverse FFT of a real-valued Fourier domain signal.

The output is a onesided representation of the Hermitian symmetric time domain signal. See https://pytorch.org/docs/main/fft.html#torch.fft.ihfft.

Example:

auto T = torch::randn(128, torch::kDouble);
auto t = torch::fft::ihfft(T);
assert(t.is_complex() && T.numel() == 128 / 2 + 1);

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