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RolyPoly
Group Title
\[L^{1} (\frac{2s^3}{s^281})\]
The actual problem in the problem set is
\[L^{1} (\frac{2s^3}{s^481})\]
 2 years ago
 2 years ago
RolyPoly Group Title
\[L^{1} (\frac{2s^3}{s^281})\] The actual problem in the problem set is \[L^{1} (\frac{2s^3}{s^481})\]
 2 years ago
 2 years ago

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hartnn Group TitleBest ResponseYou've already chosen the best response.1
i like Laplace
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
\[L^{1} (\frac{2s^3}{s^281})=L^{1} (2s+\frac{81}{s9}+\frac{81}{s+9})\]
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
I don't like Laplace /_\
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
i assume, thats correct, so whats the problem ?
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
\[L^{1}(2s)=trouble\] Btw.. I... suddenly... discovered that... I read the problem wrong :\
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
But how to find \(L^{1}(2s)\)?
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
For the correct question in the problem set: \[L^{1} (\frac{2s^3}{s^481})\]\[=L^{1} (\frac{2s^3}{s^481})\]\[=L^{1} (\frac{s}{s^2+9}+\frac{1}{2(s3)}+\frac{1}{2(s+3)})\]\[=cos(3t)+cosh(3t)\]
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
sorry, my computer restarted.... to get L^{1} (2s), u just replace 's' by 2s ....
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
L^{1} (s) also looks weird to me... Usually, it's a/s^n which I can do the inverse easily (easier, I mean)..
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
ohh...i read that wrong .. u know whats L^{1} s ?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
its \(\delta'(t)\) so, \(L^{1}(2s) = 2\delta'(t)\)
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
What is \(\delta'(t)\)?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
u know what is \(\delta(t) ?\)
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
Dirac delta function.. and ' means its derivative
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
I.. don't remember I've learnt such function...
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
really ? http://en.wikipedia.org/wiki/Dirac_delta_function 0 everywhere except origin.....like an impulse.
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
I think I've only learnt int. from 0 to infty and from s to infty case, not the ve infty to +ve infty... Thanks for introducing a new friend to me though :)
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
hmm... welcome ^_^
 2 years ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.0
I want to get back my words. I don't know the name of this new friend, but he's just an old friend of mine :'( I'm sorry!!
 2 years ago
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