作者k0184990 (追隨夢想..)
看板Grad-ProbAsk
標題[理工] [工數]-Laplace
時間Tue Sep 14 00:23:33 2010
1.
1
已知 L[f(t)]=----(e^(-s)-1)^2 e^(-s), 求f(t)
s^2
2.
Consider a function f(x) with the following Laplace transform:
exp(-s^100 exp (exp (-s^202 exp (exp (s^100))))),if s>0
F(s)={
0 ,otherwise
∞
where F(s)=∫ f(x)e^(-sx) dx by definition. Define g(x) by
0
f(x)+min(100,x^2), if x is a positive rational number
g(x)={
f(x) , otherwise
Obtain the Laplace transform of g(x).
Note that the answer without justification gets no credit.
5.
(3)
∞
K=∫ x^2 e^(-ax^2) dx
0
6.Find the Laplace transform of the following function
圖我不會畫><
第六題我只是想問,答案老師給
...+(-k)δ(t-b)
請問有沒有錯呢?
我自己寫
...+(k)δ(t-b)
第二題字有些繁多...這些題目都在周易老師的寫真密集236頁我照題號問
感謝大家幫忙看一下囉:)
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推 ntust661:第二題不是傳說中的交大萬惡題嗎 09/14 00:38
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