对于已知少量的点，使用多项式对其曲线进行近似拟合，从而预测未知的点的函数值。-For a small number of the known points, its curve is approximated using a polynomial fit to the prediction function value of the unknown point.

拟合与逼近 主要是应用切比雪夫多项式进行拟合来逼近原始曲线-Fitting and Approximation

这是目前用多项式作曲线拟合的最好算法, 通用算法实现如下.-This is the best algorithm with polynomial curve fitting,General algorithm as follows.