scicpp::signal::irfft
Defined in header <scicpp/signal.hpp>
Inverse of the discrete Fourier transform for real input.
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template<typename
T>
std::vector<T> irfft(const std::vector<std::complex<T>> &y, int n = -1)
n is an optional parameter to specify the output length of the transform.
If n is smaller than y.size() then y will be cropped, else
zero padding is performed.