x1=2.2 x2=19x3=2.0y=0.3683 L1=44812=168 1.41,=0.2404 =252.023=10.5 =0.5640 33=7013y,=0.5245 由于L=L,故不必全部列出,将它们代入方程组中 可以解得 b2=0.037,b2=-0.00343b=0.077 从而 a=0.3683-0.037×2.2+0.00343×19-0.077×20=0.201_ _ _ _ 1 2 3 11 12 12 1 22 23 2 33 3 1 2 3 2.2 19 2.0 0.3683 4.48 16.8 1.4 0.2404 252.0 10.5 0.5640 7.0 0.5245 0.037, 0.00343, 0.077 0.3683 0.037 2.2 0.00343 19 0. y y y ij ji x x x y L L L L L L L L L L L b b b a = = = = = = = = = = = = = = = = − = = −  +  − 由于 ，故不必全部列出，将它们代入方程组中 可以解得 从而 077 2.0 0.201  =