基于有理函数的数据拟合方法  

Fitting method of data based on Rational functions

作　　者：张晓芳 

机构地区：[1]河南省南阳农校,河南南阳473000

出　　处：《电脑与信息技术》2005年第3期8-9,20,共3页Computer and Information Technology

摘　　要：把有理函数引入离散数据拟合方法中,将有理函数与数据拟合的常用方法——最小二乘法相结合,给出了一种新型的数据拟合工具。文章详细讨论了该方法的算法理论和实施步骤,由于有理函数比多项式有更高的精度,该方法在提高拟合精度方面具有传统方法所不具备的优点。Both the rational functions and the least square algorithm of fitting of data are used to construct a new method of fitting of curve and surface. The algorithm based on the new method is given. It is concluded that the new method is an effective one in the field of curve and surface fitting.

关 键 词：数据拟合 有理函数 拟合函数 最小二乘法 

分 类 号：O241.3[理学—计算数学] TP391.72[理学—数学]