可供非线性动力学专业的学生画非线性碰撞的映射图和相平面图，相关专业源代码很少，希望互相分享。-Videos nonlinear students for professional nonlinear dynamics of the collision map and phase plane, rarely relevant professional source code, I hope to share with each other.

在汽车理论中，利用Matlab图形用户界面对汽车动力学性能进行了计算。可绘制驱动力-阻力平衡图、爬坡图、加速度曲线图、动力系数图和功率平衡图。(The Matlab GUI interface is used to calculate the vehicle dynamic performance in automobile theory. It can draw driving force resistance balance diagram, climbing slope diagram,