vvv444475 - 経済統計練習帳

package math;
 
import org.apache.commons.math3.transform.*;
import org.apache.commons.math3.complex.Complex;
import org.apache.commons.math3.transform.DftNormalization;
import org.apache.commons.math3.transform.TransformType;
import org.apache.commons.math3.analysis.*;
 
class pro{
 
public static void main(String[] args) { 
pro test=new pro();
}
 
pro(){
 
 
 
 int n=(int)Math.pow(2,5)+1;
 
FastCosineTransformer fft = new FastCosineTransformer(DctNormalization.ORTHOGONAL_DCT_I);
double[] comp=fft.transform(f,-10,10,n, TransformType.INVERSE);
 
 
 
 
 
}
 
UnivariateFunction f = new UnivariateFunction() {
public double value(double p) {
return  5*p;
}   
};
}