摘要
本文简单介绍了曲线拟合的概念,最小二乘法原理以及最小二乘拟合多项式问题,然后主要利用C语言设计求解最小二乘拟合多项式的系数程序,只要输入给定的数据点和相应拟合多项式的次数,运行该程序后就能准确地,高精度地获得最小二乘拟合多项式的系数.
In this paper,the author introduced simply the definition of curve fitting,the theory of least square method and the problem of least square curve fitting polynomial at first,then designed mainly the program to solve the least square curve fitting polynomial coefficient using the C computer language,when the user input a set of data which given and corresponding number of times of fitting polynomial,we will obtain the least square curve fitting polynomial coefficient with high accuracy and high precision.
出处
《青海师范大学学报（自然科学版）》
2010年第3期14-17,共4页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
曲线拟合
最小二乘法
最小二乘拟合多项式
正规方程组
least square method
curve fitting
least square curve fitting polynomial
normal equa-tions
