中文说明：应用matlab软件编程绘制庞加莱截面图，生成皮诺曲线的过程(动画) ，分形地图，离散的蔡氏电路， 抛物线-k*x^2+(k+1)*x混沌分岔行为等。
English Description：
Using MATLAB software to draw the Poincare cross-section, the process of generating Pinot curve (animation), fractal map, discrete Chua's circuit, parabolic-k * x ^ 2 + (K + 1) * x chaotic bifurcation behavior, etc.