Fourier Transform

  • Thread starter liorda
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  • #1
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Prove: [tex]FT^2(f(x))=f(-x)[/tex] where [tex]FT[/tex] is the Fourier transform.

I tried to change [tex]x[/tex] into [tex]-x'[/tex] but with no success.

Do I need to separate cases for even f and odd f?
 

Answers and Replies

  • #2
Dick
Science Advisor
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You just need to realize that e.g., integral(exp(i*k*t1)*exp(i*k*t2)*dk) is proportional to delta(t1+t2).
 

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