@Test
	public void random_test() {
		
		try{
		double [][]mat= {{1.0,2.0}, {3.0,1.0}};
		int m=2;
		int n=2;
		double[][]result = Matrix.random(m,n);
		double exp[][]={{1.0,2.0},{3.0,1.0}};
		Assert.assertNotSame(exp, result);
		}		
		catch (Exception e) {
			// TODO Auto-generated catch block
			fail("Not yet implemented");
		}
	}