拉普拉斯轉換

2014-07-13 3:36 pm
L(1)=1/s
L^-1(1)=?
更新1:

-1 + ( 3s / s^2 +1) ====> 我要轉換回去~~

回答 (3)

2014-07-18 8:17 am
✔ 最佳答案
請問清楚你的題目,你是否要

Inverse Laplace Transform of 3s / (s² + 1) 還是 -1 + 3s / (s² + 1) ?

2014-07-13 08:30:53 補充:
請看看:

http://www.wolframalpha.com/input/?i=laplace+transform+1

http://www.wolframalpha.com/input/?i=inverse%20laplace%20transform%201&t=crmtb01

http://www.wolframalpha.com/input/?i=laplace+transform+%28+-1+%2B+%28+3s+%2F+%28s%5E2+%2B1%29%29%29

2014-07-13 08:32:51 補充:
如果只是前者那就是 3 cos(t)

因為 L⁻¹ { s/(s² + 1) } = cos(t)

2014-07-18 00:17:49 補充:

圖片參考:https://s.yimg.com/lo/api/res/1.2/ZQit8r6YM3UMER1bF6V.OQ--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/http://i.imgur.com/ZH9B85L.gif

Please read:


圖片參考:https://s.yimg.com/rk/HA00430218/o/1830486882.png




圖片參考:https://s.yimg.com/lo/api/res/1.2/Fe5XUNAlBoLavdlWrAfEjg--/YXBwaWQ9dHdhbnN3ZXJzO3E9ODU-/http://www.stormmediagroup.com/upload/frontend/de64aa90-6c17-431f-bf5d-97c0a71ad961/e3732b43-bea1-42ed-9c88-541579496601.gif


2014-07-20 22:17:34 補充:
唉,真「搞笑」~

睇黎我要做定輸的心理準備...
=___=

Thanks anyway!
2014-07-21 6:14 am
投票危危乎,同壞人001票數接近。
2014-07-17 4:24 pm
L^-1(-1 + ( 3s / s^2 +1))=3
參考: me


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