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作者 divus 在 PTT [ Grad-ProbAsk ] 看板的留言(推文), 共25則

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[理工] 電磁學工數積分

[ Grad-ProbAsk ]10 留言, 推噓總分: +4

作者: raywen - 發表於 2014/03/13 11:22(11年前)

1^F推divus:把一個sinθ 拉進 dθ03/13 11:49

Re: [理工] 台大電機丙遞迴

[ Grad-ProbAsk ]12 留言, 推噓總分: +1

作者: wheniam64 - 發表於 2014/03/02 23:00(12年前)

8^F推divus:chormatic number 在grimaldi section 11.6 exercise 1403/03 23:01

9^F→divus:今天去書店翻課本看到的 XD03/03 23:06

10^F→divus:greedy的方法 max deg=k 任找一點用k+1顏色其中一種去塗03/03 23:09

11^F→divus:然後再找另外一點還沒塗的因deg<=k 故也可用k+1其中一色03/03 23:11

12^F→divus:不斷重複直到全部的點塗完03/03 23:13

Re: [理工] 台大電機丙遞迴

[ Grad-ProbAsk ]16 留言, 推噓總分: +4

作者: WashFreeID - 發表於 2014/03/02 18:18(12年前)

2^F推divus:程式碼就在記憶體理面03/02 18:40

[理工] 台大電機丙遞迴

[ Grad-ProbAsk ]30 留言, 推噓總分: +14

作者: ghjklgv9 - 發表於 2014/03/02 12:32(12年前)

25^F推divus:circle重疊轉成vertex相鄰找connected componemt03/03 00:56

30^F推divus:我用BFS 對每一個點做BFS03/03 09:50

[理工] 線代子空間一題

[ Grad-ProbAsk ]11 留言, 推噓總分: +4

作者: john2557 - 發表於 2013/12/23 23:47(12年前)

1^F推divus:我覺得是subspace12/24 00:28

7^F→divus:All vectors of the form (a,b,c,d) where b=a+c,d=2a-3c12/25 00:14

8^F→divus:另外一個選項解答說這個是subspace12/25 00:16

[理工] [離散]生成函數/組合??

[ Grad-ProbAsk ]5 留言, 推噓總分: +1

作者: brian770130 - 發表於 2013/12/16 22:53(12年前)

1^F推divus:解答有錯最後面那個C(10,0)C(8,2) 要改C(10,2) 就61512/16 23:56

3^F→divus:沒錯阿就C(13,4)-10C(10,1)12/17 00:01

5^F→divus:真的是解答錯啦12/17 00:05

[理工] 線性代數 Cayley-Hamilton

[ Grad-ProbAsk ]6 留言, 推噓總分: +2

作者: truehappy99 - 發表於 2013/11/15 23:38(12年前)

2^F→divus:令 f(x)=x^50-4x^20+5=h(x)(x-1)(x-6)+a(x-1)+b11/16 00:16

4^F→divus:1和6代進去解a,b B=a(A-I)+bI11/16 00:17

Re: [理工] 計組管線的一些題目

[ Grad-ProbAsk ]8 留言, 推噓總分: +3

作者: kkmanice - 發表於 2013/11/15 01:12(12年前)

1^F推divus:推~ 真的是18個cycle的周期圖謝謝澄清c1311/15 01:32

6^F→divus:人家18個cycle圖都分享出來了有招豈可不分享11/15 23:57

[理工] 關於時間複雜度

[ Grad-ProbAsk ]8 留言, 推噓總分: +2

作者: s97610017 - 發表於 2013/10/14 23:37(12年前)

1^F推divus:應該是 n^3 (1+3/2+(3/2)^2....(3/2)^k)*n^210/14 23:52

2^F→divus:k是樹高被n/3和2n/3 bound住 k取log(n)10/14 23:54

3^F→divus:等比級數 ((3/2)^(k+1)-1)/(3/2-1)*n^2 看成10/14 23:56

4^F→divus:(3/2)^log(n)*n^2 ~ n^310/14 23:58

5^F→divus:sorry 我的想法應該是錯的10/15 00:33

7^F→divus:只能代 Akra-Bazzi 了解出來是 n^210/15 01:29

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