public void Minus_ShouldSucceed() { var A = new VectorXD(new double[] { 1, 2, 3, 4 }); var B = new VectorXD(new double[] { 1, 2, 3, 4 }); var addVector = A.Minus(B); Assert.Equal(new VectorXD(new double[] { 0, 0, 0, 0 }), addVector); }