该程序可以对发动机试验数据进行分析和三次样条插值，绘制发动机特性曲线，辅助试验人员工作-The program can be carried out on engine test data analysis and cubic spline interpolation, curve drawing engine, supporting the work of testing personnel

三次样条插值求解程序,拟合广顺一些散点非常有效，操作简单高效，容易上手-three spline function sovle some dicreted points to a smooth line,it is very fast and efficient.Also,operation is easy to learn.It is a good method

对于车辆通过路口进行轨迹规划，方法为三次Hermit插值(For the trajectory planning of the vehicle through the intersection, the method is three times Hermit interpolation)