まｔｈまｔｈ - 経済統計練習帳

package math;
 
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.math3.linear.Array2DRowRealMatrix;
import org.apache.commons.math3.linear.ArrayRealVector;
import org.apache.commons.math3.linear.LUDecomposition;
import org.apache.commons.math3.linear.RealMatrix;
import org.apache.commons.math3.linear.RealVector;
import org.apache.commons.math3.linear.MatrixUtils;
 
 
 
class pro{
 
public static void main(String[] args) {
 
pro test=new pro();
}
 
pro(){
 
  double[][] xx=new double[2][2];
 
  xx[0][0]=1;
  xx[0][1]=1;
   xx[1][0]=2;
  xx[1][1]=4;
 
RealMatrix np = new Array2DRowRealMatrix(xx);
 
System.out.println(np);
 
 
 
 
 
 
 
 
 
}
}