@Test
	public void add_test() {
		
		try{
		double [][]mat1= {{1.0,2.0}, {3.0,1.0}};
		double [][]mat2= {{2.0,1.0}, {1.0,3.0}};
		double [][]result = Matrix.add(mat1, mat2);
		double exp[][]={{3.0,3.0}, {4.0,4.0}};
		Assert.assertEquals(result, exp);
		}		
		catch (Exception e) {
			// TODO Auto-generated catch block
			fail("Not yet implemented");
		}
	}