converting from Tdomain to Sdomain?by mhnassif Tags: laplace, laplace tranform, sdomain, tdomain 

#1
Oct1009, 02:02 PM

P: 4

1. The problem statement, all variables and given/known data
convert Tdomain to Sdomain F(t)= e^4t *sin10t 2. Relevant equations 3. The attempt at a solution sin10t converted to 10/[(S^2)+100] but how can i convert e^4t ? 



#2
Oct1009, 02:38 PM

P: 39

You can use a table of laplace transforms to find this easily: http://www.vibrationdata.com/Laplace.htm




#3
Oct1009, 02:56 PM

P: 4

Thank you,
I know exp(at) on sdomain will be But is the Alpha sign a constant, to replace it with a value? 



#4
Oct1009, 04:44 PM

P: 39

converting from Tdomain to Sdomain?
I just took a closer look at that table, I'm not sure why they used a and alpha. Basically this should be:
[tex]\mathcal{L}\left(e^{at})\right = \frac{1}{s+a}[/tex] Hope that helps, Ryan 



#5
Oct1109, 12:58 PM

P: 4

Have a nice day 


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