理解函数插值与拟和的基本原理。掌握多项式插值、样条插值以及最小二乘法拟和的编程实现。-Interpolation and to understand the function and basic principles. Have polynomial interpolation, spline interpolation and least square method and the programming to be.

采用最小二乘法，样条差值等各种方法进行数值计算，并画出相应的图形-Using the least square method, spline method of difference and other numerical calculations and draw the corresponding graph

三次B样条最小二乘拟合，附文献，Approximation of data using cubic B′ ezier curve least square fi tting，Author: M Khan-Cubic B-spline least squares fitting and literature. Approximation of data using cubic B ezier curve least square fitting, Author: M Khan,