array([[1.0, 2.0, 0.0, 0.0, 0.0], [11.0, 1.0, 2.0, 0.0, 0.0], [0.0, 12.0, 
    1.0, 2.0, 0.0], [0.0, 0.0, 13.0, 1.0, 2.0], [0.0, 0.0, 0.0, 14.0, 1.0]])
Numpy: Affect diagonal elements of matrix prior to 1.10