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Need a help about Fourier Integral.

  1. May 5, 2007 #1
    http://img96.imageshack.us/img96/4240/hinhcc9.jpg [Broken]

    I'm studying on Fourier Transform. And the only thing I don't understand about it still now is the problem about Fourier Integral with non-periodic function. Why we can write it in the form above ? Please help me.:cry: I appreaciate any help.

    Best regard.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. May 6, 2007 #2


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    You don't have to figure that out by yourself. :smile: That stuff is a theorem that isn't easy to prove, but if you're interested you can find the proof in any textbook on Fourier analysis.
  4. May 6, 2007 #3


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    First, what definition of Fourier Integral are you using? Once you have answered that we may be able to help you see how to change it to the form you want.
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