fft.cpp File Reference

#include "spectral/fft.hpp"
#include "backends/seq/impl.hpp"
#include "backends/opt/impl.hpp"
#include "backends/fftw/impl.hpp"
#include <stdexcept>

Go to the source code of this file.

Namespaces
namespace	num
namespace	num::spectral

Functions
void	num::spectral::fft (const CVector &in, CVector &out, FFTBackend b=default_fft_backend)
	Forward complex DFT. out must be pre-allocated to in.size().
void	num::spectral::ifft (const CVector &in, CVector &out, FFTBackend b=default_fft_backend)
	Inverse complex DFT (unnormalised: result = n * true_inverse).
void	num::spectral::rfft (const Vector &in, CVector &out, FFTBackend b=default_fft_backend)
	Real-to-complex forward DFT. out must be pre-allocated to n/2+1.
void	num::spectral::irfft (const CVector &in, int n, Vector &out, FFTBackend b=default_fft_backend)
	Complex-to-real inverse DFT (unnormalised).