推 youmehim:因S^-1PS=D P為非齊次項 令X=SYS^-1 接著等號左右邊 03/23 00:32
→ youmehim:前面乘以S^-1 後面乘以S 就可以解了 03/23 00:33
2
X - 4X + 4I = [4 3]
[5 6]
對角化後
-1 1
S=[ 1 3] D=[1 0] S = ---[5 -3]
[-1 5] [0 9] 8 [1 1]
然後呢@@ 課本解答寫的我看不太懂..
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