最小二乘法拟合 as =-2,-a-a)0=-20,-4-axk=0 , m x y-mxy i=l a1= do=y-ax x= =】 m i= 将实验数据代入，！ 即可求得o' 1 2024/9/13 上页 下页 返回2024/9/13 最小二乘法拟合 2 ( ) 0; 2 ( ) 0 1 0 1 1 1 0 1 0 = − − − =   = − − − =     = = i m i i i m i i i y a a x x a S y a a x a S     = = = = = = = − − − = m i i m i i m i i m i i i y m x y m x a y a x x mx x y mxy a 1 1 0 1 1 2 2 1 1 1 ; 1 ; 将实验数据代入，即可求得 a0，a1； i m i i m i m i i m i i m i i y a x a x x y m x m a a     i  = = = = = + = + = 1 1 2 1 1 0 1 1 1 0 ; 1