一个求解李雅普诺夫指数的matlab程序,程序已经测试通过，适合matlab的初学者-Solving a Lyapunov exponent of the matlab program, the program has been tested for matlab beginner

对于非线性系统应用的一个实例，画出了最后的相图(For an example of the application of a nonlinear system, a final phase diagram is drawn.)