@Test
	public void random_test() {
		

		try{
		double []mat= {1.0,2.0,3.0,1.0};
		int m=4;	
		double[]result = Vector.random(m);
		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");
		}
	}