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[理工] [工數] 向量運算子公式證明

[ Grad-ProbAsk ]13 留言, 推噓總分: +4

作者: jamie7724 - 發表於 2010/09/25 00:20(13年前)

3^F推G41271:原文書不完整你的補習班是對的09/25 00:44

5^F推G41271:你原文書有仔細看嗎,他一定有說後兩項因為怎樣所以是009/25 13:48

6^F→G41271:然後你要證明的話,直接三維代數假設進去,暴力解就好了09/25 13:49

9^F→G41271:Levi-Civita symbol 就是硬幹呀09/25 17:19

[理工] [工數] laplace 求解積分方程

[ Grad-ProbAsk ]5 留言, 推噓總分: +3

作者: yuxike - 發表於 2010/09/18 16:42(13年前)

2^F推G41271:那個可以直接積分呀變成 0.5y(t) 所以是0.5Y(s)09/18 16:51

[理工] [工數]-微分方程

[ Grad-ProbAsk ]1 留言, 推噓總分: +1

作者: miniye - 發表於 2010/09/03 23:10(13年前)

1^F推G41271:X"+X=0 可以吧09/04 00:36

[理工] [工數]-高階ODE

[ Grad-ProbAsk ]8 留言, 推噓總分: +4

作者: k0184990 - 發表於 2010/08/19 00:32(13年前)

1^F推G41271:http://tinyurl.com/2asl64v08/19 02:23

Re: [理工] [工數]Laplace

[ Grad-ProbAsk ]26 留言, 推噓總分: +10

作者: Tall781218 - 發表於 2010/08/17 18:46(13年前)

20^F→G41271:看象限太難用推文解釋了直接推和角公式輕鬆08/17 19:49

[理工] [積分]

[ Grad-ProbAsk ]15 留言, 推噓總分: +2

作者: Austin9 - 發表於 2010/08/14 00:08(14年前)

11^F推G41271:不要什麼都推給積分常數好嗎答案錯就是錯08/14 01:23

13^F→G41271:就答案錯咩08/15 18:36

Re: [理工] [理工]-ODE特解

[ Grad-ProbAsk ]15 留言, 推噓總分: +4

作者: mike7689 - 發表於 2010/07/18 23:56(14年前)

13^F推G41271:就算有背參數變異法的公式還是逆運算子較快07/24 00:01

[理工] [工數] Fourier 半程展開

[ Grad-ProbAsk ]7 留言, 推噓總分: +3

作者: h888512 - 發表於 2010/04/28 17:07(14年前)

1^F推G41271:他看起來是偶函數耶04/28 16:27

Re: [理工] [工數]-簡單的積分救救我><

[ Grad-ProbAsk ]5 留言, 推噓總分: +2

作者: topee - 發表於 2010/04/08 16:44(14年前)

2^F推G41271:解答虎爛你別理他04/08 16:59

[理工] [微積分]-積分

[ Grad-ProbAsk ]5 留言, 推噓總分: +3

作者: angelling17 - 發表於 2010/04/03 03:24(14年前)

1^F推G41271:這是橢圓積分吧04/03 14:48

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