摘要
近来有人对最小二乘圆的参数,提出精确算式:a=1/n∑x_i,b=1/n∑y_i,R=1/n∑((x_i-a)~2+(y_i-b)~2)^(1/2)笔者按最小二乘原理推证:此式不能精确得到,并论证了此式的错误原因.
According to least square theory,the author draws a conclusion that the “correct formulae” presented by someone recently for calculating the parameters of least square circle cannot be obtained exactly,and shows the cause for their error.
出处
《东南大学学报(自然科学版)》
EI
CAS
CSCD
1990年第6期96-101,共6页
Journal of Southeast University:Natural Science Edition
关键词
最小二乘法
最小二乘圆
参数
算式
least square methods
application
least square fitting
formula
parameter/least square circle