对于系统单参数分岔图的计算共有以下的几种方法：
1）最大值法
　　 即对系统微分方程（组）进行求解，对求解的结果用getmax函数进行取点，并绘图。
2）Poincare截面法
　　对系统参数的每一次取值，绘制其Poincare截面，进而得到其分岔图。
　　这种方法需要注意的是，自治系统的Poincare截面是选取一超平面，平面上点的分布即构成一Poincare截面，非自治系统的Poincare截面则是根据系统激励的频率进行取点并绘图。(There are several methods for calculating the single parameter bifurcation diagram of the system.
1) maximum value method
That is, the solution of the system differential equation (Group) is carried out, and the results of the solution are taken with the getmax function, and the drawing is drawn.
2) Poincare cross section method
For each value of the system parameters, the Poincare section of the system is drawn, and then the bifurcation diagram is obtained.
Need to pay attention to this approach is that the Poincare section is selected a plane autonomous system, the point of the plane distribution is composed of Poincare section, Poincare section of non autonomous systems is the access point and drawing according to the system excitation frequency.)