/*----------------------------------------------------------------------------
複素指数関数を使った離散フーリエ変換と逆離散フーリエ変換
discrete Fourier transform and inverse discrete Fourier transform
using complex exponential function
complex_DFT.h
----------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <malloc.h>
#include <complex.h>
#define SAMPLING_FREQ 1 /* サンプリング周波数, sampling frequency */
extern void complex_fourier( int num, complex *x, complex *F );
extern void complex_inv_fourier( int num, complex *x, complex *F );