Flight modelling on GEO

Remote work for a specialist in MatLab. There is a mathematical model, a system of differential equations. You need to write a program (preferably in MatLab) that would simulate interorbital flight on this mat. The model ensured that the required orbital parameters (size, inclination) were achieved by its end. The main task is to obtain the required laws of angle change to control the thrust vector during the flight.
There are ready-made developments and calculations for simplified variants of the problem (with zero inclination), you can discuss.