Funktion
f(x, y) = 5.04·x^(-2.99)·y^(-0.02)
Gradient
f'(x, y) = [-15.0696·x^(-3.99)·y^(-0.02), -0.1008·x^(-2.99)·y^(-1.02)]
Hesse-Matrix
f''(x, y) = [60.127704·x^(-4.99)·y^(-0.02), 0.301392·x^(-3.99)·y^(-1.02); 0.301392·x^(-3.99)·y^(-1.02), 0.102816·x^(-2.99)·y^(-2.02)]