[線代] positive definite

看板Math作者 (Danny)時間13年前 (2012/06/05 17:00), 編輯推噓0(0推 0噓 3→)
留言3則, 2人參與, 最新討論串1/2 (看更多)
給定一個矩陣A (not symmetric) is a positive definite matrix then A^n is potive definite or not? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.51.125
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06/05 17:26, , 1F
there exist counterexamples
06/05 17:26, 1F
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06/05 19:03, , 2F
can you show me the example?
06/05 19:03, 2F
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06/05 19:04, , 3F
How about exp(A) is p.d. or not?
06/05 19:04, 3F
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