please give me matlab codes of all questions below

Question 1: Gradient-Descent Optimization Application [100-marks] The pseudocode of Gradient descent based PID algorithm is given as in algorithm 1. - Implement the pseudo code in algorithm 1 using Matlab m-file enviroment. [40-marks] - Illustrate the system output, reference signal and control signal as given in Figure 1 and Figure 2 for staircase and sinusoidal input references. [30-marks] - Illustrate the system jacobian (u(n)dy(n)), update terms (Kp(n),Ki(n),Kd(n)) evaluation of controller parameters as given in Figure 1 and Figure 2 for staircase and sinusoidal input references.. [30-marks] - System dynamics are given as y(n+1)=1+y2(n)y(n)+u(n)