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anonymous
 3 years ago
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anonymous
 3 years ago
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zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0Hmm interesting :O Ok let's get it plugged into the formula correctly, and see if we can figure this out. \[\huge \mathscr{L}\left[e^{(t1)^2}\right] =\int\limits_0^{\infty}e^{(t1)^2}e^{st}\;dt\]

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0Hmm this one is a bit tricky. Let's first combine the exponentials using rules of exponents.\[\huge \int\limits\limits_0^{\infty}e^{(t1)^2st}\;dt\]

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0Hmmm I can't quite get a handle on this one... You can combine the st into the equation and complete the square, I'm not really sure that gets us anywhere though.. hmmm @Mertsj @phi Maybe one of these smarty pants can help us.

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0As far as the 0 to infinity question goes... The Laplace Transform transforms us from one domain to another. Notice how the variable changes from t to s? There are many applications I'm sure, but one way we can think of it is going from the time domain to frequency. If you think of starting with time, we can't really integrate before time t=0. It doesn't have a nice interpretation, at least not in most cases. So we're just integrating over the entire domain of t, and it spits out a function of something else.

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0Let's look at the exponent a minute, maybe we can get somewhere with this.\[\large (t1)^2st \qquad = \qquad t^22t+1st\]Which by combining the t terms, gives us,\[\large t^2(s+2)t+1\] From here.... I guess we could maybe complete the square and see if it takes us anywhere :\ It doesn't look like it will though.. hmmm

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.0Yah the site gets a lot of visitors.. slows down sometimes :(
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