please help, idk how to solve this due this week

The pendulum shown in Figure 2 consists of a concentrated mass ? attached to a rod whose mass is small compared to ?. The rod’s length is ?. The equation of motion for this pendulum is ?̈+ ? ? sin ? = 0 Suppose that ? = 1 m and ? = 9.81 m/s2 . Use MATLAB to solve this equation numerical techniques for, ?(?) for two cases: , ?(0) = 0.5 rad and, ?(0) = 0.8 rad. In both cases ?̇(0) = 0. Produce real time animation for both sets of initial conditions in the same figure. Both graphs must be labelled and formatted.