/* 高速フーリエ変換(FFT) : fftmain.c */
#include <stdio.h>
#include <math.h>
#include "complex.h"
#include "fft.h"
#define N 256
#define NN 128
#define M 8
int main(void)
{
complex f[N], ww[N], *p;
int jun[N], i;
double j, r;
for ( i = 0 ; i < N ; ++i ){
scanf("%lf",&r);
f[i] = cmplx(r, 0.0);
}
fft(f, ww, jun, M, 0); /* フーリエ変換 */
for ( i = 0, p = f ; i < N ; ++i, ++p ){
j = (double)i / 16;
printf("%f %f %f %f\n", j, cabso(p), real(p), aimag(p));
}
}