[ n summation Xi summation (Xi)^2 [a [ sum Yi
summation Xi summation (Xi)^2 summation (Xi)^3 b = sum XiYi
summation (Xi)^2 summation (Xi)^3 summation (Xi)^4 ] c] sum (Xi^2 Yi)]
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MATRIX A B Matrix C
我想問下點樣搵到個a,b,c ge 值出黎..(IN TERMS OF Xi 同Yi)
如果2邊都乘inverse of A (A-1)..好似好複雜咁..好難計呀.
有冇好友高手可以SHOW 個STEP 同ANSWER 出黎呀..THX!!
