作者vendor47 (屁)
看板Grad-ProbAsk
標題[理工] skew-symmetric matrix
時間Sun Feb 5 21:27:07 2012
T
Suppose that K is a square matrix with K = -K and that (I-K) is nonsingular;
define
-1
A = (I+K)(I-K)
Show that A is an orthogonal matrix.
T
我的想法是讓 AA 是一個 digonal matrix
T
但我找出 A 後就卡住了...
請問有高手會這題嗎?
謝謝
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◆ From: 122.116.13.124
※ 編輯: vendor47 來自: 122.116.13.124 (02/05 21:28)
→ doom8199:inv(I-KK) = inv(I+K)inv(I-K) = inv(I-K)inv(I+K) 02/05 22:03
→ mp8113f:I-KK @@ ? 02/05 22:30
→ Byzantin:KK就是K^2阿 02/05 23:13
→ mp8113f:恩恩 一時沒看懂在寫什麼XD 02/06 02:04