画出足球的基本轮廓，解决足球在MATLAB中的函数问题，可以作为一个比较好的参照-Draw the basic outline of the football, to solve the problem of football MATLAB functions, can be as a good reference

spline插值函数，可改变为spline函数，有助于spline图像插值算法解决-spline interpolating function, you can change the spline function helps spline image interpolation algorithm to solve

本程序主要用于NURBS基函数的求解，主要方法是运用nurbs函数的基本定义进行程序设计的，方便快捷。-This procedure is mainly used to solve the NURBS basis functions, the main method is to use the basic functions defined nurbs program design, and convenient.

解决传统人工势场法的目标不可达缺陷，通过改进斥力函数，解决问题-To solve the traditional artificial potential field goal unreachable defect