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void go_fourier_fft (go_complex const *in, int n, int skip, go_complex **fourier, gboolean inverse); void go_fourier_fftl (go_complexl const *in, int n, int skip, go_complexl **fourier, gboolean inverse);
void go_fourier_fft (go_complex const *in, int n, int skip, go_complex **fourier, gboolean inverse);
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void go_fourier_fftl (go_complexl const *in, int n, int skip, go_complexl **fourier, gboolean inverse);
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