Laplace Transformation: Transforming F(s) = 1/(s-2)^2

In summary, the conversation discussed transforming the function F(s) = 1/(s-2)^2 using the Laplace transform. The third function in the list along with the "frequency shifting rule" was suggested to be used. It was also noted that this rule is implied in the third function, which is the Laplace transform of e^at. The second function in the list, the Laplace transform of 1/t, was also mentioned and considered to be more straightforward.
  • #1
leopard
125
0
How can I transform

[tex]F(s) = \frac{1}{(s-2)^2}[/tex]

?

I cannot see that any of the functions in my table is useful...

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  • #2
Use the third one in the list along with the "frequency shifting rule": [tex]\mathcal{L}^{-1}[F(s-\alpha)]=e^{\alpha t}\mathcal{L}^{-1}[F(s)][/tex]
 
  • #3
Actually, it's the second one in the list: the Laplace transform of 1/t is 1/s2. I think gabbagabbahey was counting the heading. Also note that gabbagabbahey's "frequency shifting rule" is implied in the third, the Laplace transform of eat is 1/(s-a) which is just the laplace transform of 1/t "shifted" by a.
 
  • #4
HallsofIvy said:
... I think gabbagabbahey was counting the heading...

Actually I meant the third (with n=1 of course)---but certainly the second is a little more straightforward!:smile:
 

What is Laplace Transformation?

Laplace Transformation is a mathematical tool used in engineering and science to transform a function of time into a function of complex frequency. It is used to solve differential equations and analyze the behavior of systems over time.

What is the formula for Laplace Transformation?

The formula for Laplace Transformation is F(s) = ∫f(t)e^(-st)dt, where f(t) is the function of time and s is the complex frequency. In the case of F(s) = 1/(s-2)^2, the function f(t) is 1 and s is 2.

Why is Laplace Transformation useful?

Laplace Transformation is useful because it allows us to transform a difficult differential equation into a simpler algebraic equation that can be solved using basic algebraic techniques. It also provides a way to analyze the behavior of systems over time and understand their response to different inputs.

What is the inverse Laplace Transformation?

The inverse Laplace Transformation is the process of converting a function of complex frequency back into a function of time. It is denoted by the symbol L^-1 and is the opposite of the Laplace Transformation.

How can Laplace Transformation be applied to real-world problems?

Laplace Transformation can be applied to real-world problems in various fields such as engineering, physics, and economics. It can be used to model and analyze the behavior of complex systems, including electrical circuits, mechanical systems, and chemical reactions. It is also used in signal processing to filter out noise and analyze signals.

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