matlab内显示图形的子程序，可以方便的显示各种图形，能够识别图形中任意点的轨迹-matlab display graphics within the subroutine, you can easily display a variety of graphics, can identify any point in the track graph

一级倒立摆系统响应，最优算法lqr稳定控制的仿真，以及Simulink搭建的图形及仿真。(The first-order inverted pendulum system response, the optimal algorithm lqr stability control simulation, and Simulink structures and simulation.)