作者查詢 / harrypotter2
作者 harrypotter2 在 PTT [ Grad-ProbAsk ] 看板的留言(推文), 共504則
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5F推:(1)因為t<0時,Vs=0V;t≧0才開始有三角波訊號12/14 03:56
4F推:第一小題http://ppt.cc/JLTd12/06 00:50
5F→:第二小題http://ppt.cc/~nHs12/06 00:50
6F→:而為什麼C1跟C2沒電流,因為題目第四行有說12/06 00:51
8F推:久久回來看一下~12/06 23:37
1F推:正負102/17 05:33
3F推:應該是|c|=1 ...02/17 05:48
4F→:因為有可能是複數02/17 05:49
5F推:推導的話就把Ax=λx共軛轉置後面再乘x 整理一下02/17 06:04
6F→:以後得到|λ|^2=1→|λ|=102/17 06:05
1F→:1.沒說real 2.True 如果沒有for every就是False02/17 05:35
2F→:3.injective→1-to-1 surjective→onto02/17 05:35
3F→:bijective→1-to-1 & onto02/17 05:36
6F→:樓上跟我想得一樣XD02/17 05:36
7F推:翻題目發現題目沒說要做正交對角化 做LDU分解就好02/16 14:48
8F→:因為是實對稱 所以做LDU會剛好像正交對角化的樣子02/16 14:49
11F→:這題不用對角化,用雷利商可以看出f(n)02/17 06:07
12F推:相同的特徵值對應的特徵向量不同就不一樣了02/10 00:46
1F推:doom神!!02/08 01:40
8F推:VA是通道長度調變效應來的 他題目這樣設就是VA=8*L02/07 18:08
9F→:而L要用的單位是μm02/07 18:09
15F推:我覺得題目應該要寫VA=[8*L(μm)](V) 比較好02/07 18:19
17F→:但出題的最大...02/07 18:19