Laplace Transform of Delta Function

In summary, the Laplace Transform of Delta Function is a mathematical tool used to transform a function from the time domain to the frequency domain. It is defined as the integral of the function multiplied by the exponential function e^(-st), where s is a complex variable. The Laplace Transform of Delta Function is useful in solving differential equations and analyzing systems in the frequency domain. It is also the inverse Laplace Transform of the constant function 1. This transformation can be applied to any function that is multiplied by e^(-st), allowing for the analysis of a wide range of functions. The calculation of the Laplace Transform of Delta Function involves taking the integral of e^(-st) from 0 to infinity, resulting in a value of
  • #1
digipony
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Homework Statement


Evaluate the Laplace transform: L{δ(t-∏)tan(t)}


Homework Equations





The Attempt at a Solution


L{δ(t-∏)tan(t)} = ∫ δ(t-∏)tan(t) dt evaluated from 0 to ∞
=tan(∏)e-∏*s
= 0

Could someone check my work on this one? I'm suspicious that my transform is just zero. Thanks!
 
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  • #2
You omitted the e^(-st) factor in the definition of the Laplace transform, but sure, 0 is correct.
 
  • #3
Oops-Typing error. Thanks! :)
 

What is the Laplace Transform of Delta Function?

The Laplace Transform of Delta Function is a mathematical tool used to transform a function from the time domain to the frequency domain. It is defined as the integral of the function multiplied by the exponential function e^(-st), where s is a complex variable. In the case of the Delta Function, the Laplace Transform is equal to 1.

Why is the Laplace Transform of Delta Function useful?

The Laplace Transform of Delta Function is useful in solving differential equations and analyzing systems in the frequency domain. It allows for easier manipulation and analysis of functions, and can help to simplify complex systems.

What is the relationship between the Delta Function and the Laplace Transform?

The Delta Function is the inverse Laplace Transform of the constant function 1. This means that the Laplace Transform of the Delta Function is equal to 1, while the inverse Laplace Transform of the constant function 1 is equal to the Delta Function.

Can the Laplace Transform of Delta Function be applied to other functions?

Yes, the Laplace Transform of Delta Function can be applied to any function that is multiplied by the exponential function e^(-st). This allows for the transformation of a wide range of functions from the time domain to the frequency domain.

How is the Laplace Transform of Delta Function calculated?

The Laplace Transform of Delta Function is calculated using the formula: L{δ(t)} = ∫0 e^(-st) dt. This integral evaluates to 1, resulting in the Laplace Transform of the Delta Function being equal to 1.

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