作者查詢 / cha122977
作者 cha122977 在 PTT [ Grad-ProbAsk ] 看板的留言(推文), 共243則
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5F→:因為題目是複選題呀XD01/23 23:12
7F→:建議寫精確一點 可以順便註明有無限多組解10/06 13:24
8F→:也許這題打算讓不知道有無限多組解的人拿不到分10/06 13:25
9F→:我們無法知道出題者出題目的本意 所以建議是寫精確點10/06 13:25
14F→:我會寫span然後去掉zero vector 類似那個s係數的寫法10/07 02:34
6F→:一樣的東西一起取就不用擔心順序性了...09/29 23:32
4F→:也可以想成垂直投影後的值為0~09/21 18:11
7F→:實部和虛部不會互相影響~09/07 19:17
1F→:先證A symmetri、iB Hermitian 得A^T=A B^T=-B 就行了09/07 16:05
1F→:集合沒什麼限制... 子空間就你講的那樣08/29 22:34
3F→:精確的定義我不太確定 手邊也沒書 要請其他人解答了~08/29 02:21
1F→:方波一個週期內會震盪嗎= =08/26 14:49
2F→:用E[x(t)^2]來寫會是對的 但是你的積分式列錯了08/26 14:52
3F→:一個週期內總能量(A^2)T 功率為(A^2)T/T=A^208/26 14:56
10F→:第一題可以用projection matrix概念來做08/24 19:23
11F→:投影至"和3x-5y=0呈直角的直線"其Null space即為3x-5y=008/24 19:25
12F→:第二題我猜是變相求minimal square line?08/24 19:29