引用第1樓pongpong123於2010-01-21 23:49發表的“”:
SEM 課程真係深 [表情]
| 雲佬~~SY | 2010-01-21 20:41 |
SYSTEM 求救呀!!!![ n summation Xi summation (Xi)^2 [a [ sum Yisummation Xi summation (Xi)^2 summation (Xi)^3 b = sum XiYi summation (Xi)^2 summation (Xi)^3 summation (Xi)^4 ] c] sum (Xi^2 Yi)] || || || 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!!   |
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