Manipulation of the law of gravity in the Earth-Sun problem

We change the law of gravity and observe how the orbit of the Earth changes. This includes MATLAB code, and the numerical solution uses the Verlet method.我们通过修改万有引力定律，观测地球轨道的变化规律。本数据集包含配套MATLAB代码，其数值求解过程采用Verlet算法（Verlet method）。