Need help finding the fourier transform of xe^-x

In summary, the conversation is discussing the Fourier transform of the function f(x) = xe^-x in the given range of -1<x<0. The person asking for help mentions that they need to find G(w) and have given f(t), while SteamKing encourages them to try solving the problem themselves. The definition of the Fourier transform is also mentioned, with a link provided for reference.
  • #1
Megatron16
4
0
Can anybody help in in finding the Fourier transform of f(x) = xe^-x where -1<x<0 and f(x)= 0 otherwise?
 
Last edited:
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  • #2
The range of x is missing a lower limit.
 
  • #3
Oh sorry, the range of x is -1 < x < 0.
 
  • #4
What's the definition of the Fourier transform of a function f(x)?
 
  • #6
SteamKing is trying to get you to try to do this problem yourself. He knows the definition of a Fourier transform, but we want to see how you would approach this problem.
 

1. What is the Fourier Transform of xe^-x?

The Fourier Transform of xe^-x is 1/(1+iw)^2, where w represents the frequency variable.

2. How do you find the Fourier Transform of xe^-x?

To find the Fourier Transform of xe^-x, you can use the formula F(w) = ∫ ∞ -∞ f(x)e^-iwx dx, where f(x) is the function xe^-x and w is the frequency variable.

3. Why is the Fourier Transform of xe^-x important?

The Fourier Transform of xe^-x is important because it allows us to convert a function from the time domain to the frequency domain. This can be useful in various fields, such as signal processing and image processing.

4. Can the Fourier Transform of xe^-x be calculated using a computer?

Yes, the Fourier Transform of xe^-x can be easily calculated using computer software, such as MATLAB or Python, which have built-in functions for calculating Fourier Transforms.

5. Are there any applications of the Fourier Transform of xe^-x?

Yes, the Fourier Transform of xe^-x is used in various applications, such as analyzing signals in communication systems, removing noise from images, and solving differential equations in engineering and physics problems.

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