f

package inter;

 

import ca.uol.aig.fftpack.*;

 

public class fourier{

 

    int i,n;

 double dx,x;

 double a;

 double alpha=new double[1024];

        double beta=new double[1024];

double data=new double[1024];

 

   void makedata(){

 

        n = 1024;

 a = new double [n];

 RealDoubleFFT my = new RealDoubleFFT(n);

 

 dx = 2 * Math.PI / n;

 for (i = 0; i < n; i++) {

 a[i]=data[i];

        }

 

 my.ft(a);

 

 

    alpha[0]=a[0]/n;

    int s;

for(s=1;s<512;s++){

alpha[s]=2*a[2*s-1]/n;

beta[s]=-2*a[2*s]/n;

}

 

}

 

 

 

}

</pre>