@Test
	public void multiply_test() {
		
		try{
		double [][]mat1= {{1.0,2.0}, {3.0,1.0}};
		double []mat2= {2,1};
		double[]result = Matrix.mult(mat1, mat2);
		double exp[]={4.0,7.0};
		Assert.assertArrayEquals(exp, result, 0.0);
		}		
		catch (Exception e) {
			// TODO Auto-generated catch block
			fail("Not yet implemented");
		}
	}