public void Add_ShouldSucceed()
{
VectorXD A = new VectorXD(new double[] { 1, 2, 3, 4 });
VectorXD B = new VectorXD(new double[] { 1, 2, 3, 4 });
var addVector = A.Add(B);
Assert.Equal(new VectorXD(new double[] { 2, 4, 6, 8 }), addVector);
}