LowerTriangularMatrixTest.java

package util.test;

import util.linalg.LowerTriangularMatrix;
import util.linalg.RectangularMatrix;

/**
 * A test for lower triangular matrices
 * @author Andrew Guillory gtg008g@mail.gatech.edu
 * @version 1.0
 */
public class LowerTriangularMatrixTest {

    /**
     * Test main,
     * @param args ignored
     */
    public static void main(String[] args) {
      double[][] a = {
          { 1, 0, 0, 0 },
          { 3, 5, 0, 0 },
          { 4, 3, 6, 0 },
          { 1, 2, 3, 4 }
      };

      LowerTriangularMatrix lm = new LowerTriangularMatrix(new RectangularMatrix(a));    
      System.out.println(lm);
      System.out.println(lm.inverse());
      System.out.println(lm.inverse().times(lm));
      System.out.println(lm.times(lm.inverse()));
    }

}