作者peacrackers (歡樂可樂果)
看板Grad-ProbAsk
標題[理工] [工數] 拉氏ODE
時間Tue May 22 23:08:21 2012
原題目:In the s-domain, via Laplace transform, one has
1 s s
Y(s) = -------- + -------------- - ----------- e^(-πs)
s^2+16 (s^2+16)^2 (s^2+16)^2
If this Y(s) is used to describe a 2nd-order Ordinary
Differential Equation : y”(t) + p(t)y’(t) + q(t)y(t) = r(t) ,
with the initial conditions : y(0)=0 and y’(0)=1 , find
p(t), q(t) and r(t) , respectively.
已經將 Y(s) → y(t)了,好像…沒什麼幫助?還是出發點錯了?
肯請大家賜教。
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