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作者 Vulpix 在 PTT 全部看板的留言(推文), 共57292則
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1F→:有一個直角的四邊形10/24 07:03
1F→:縮減沒錯10/21 23:57
6F→:我是用這玩意兒驗證 Bloch Thm.10/21 19:24
7F→:是好算但不平凡的第一個例子吧10/21 19:26
2F→:雖然我記得回文的解是不對的...10/17 09:39
3F→:但是只要因式分解就很簡單了10/17 09:39
1F→:沒有"5",你心目中的"5"其實是0。10/16 21:48
1F→:先說明這個:k*C(n,k)=n*C(n-1,k-1)10/15 16:34
37F→:辛流形的一個常見的模型是T*M, 其中M的coor.部份相當於x10/16 22:04
38F→:而T*_{x}M這些vector就相當於動量p了10/16 22:04
7F→:只是因為假設 "x is not an extreme point"。10/15 18:15
19F→:其實不見得需要u向內。u如果向外,s就是負的而已。10/16 00:24
20F→:(u^t)x≦0的意思是 u, x 的夾角大於等於90度。10/16 00:25