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Homework Help: Simple fourier transform problem?

  1. Mar 13, 2014 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations
    this is list common fourier transforms:

    3. The attempt at a solution
    so I know the solution but I don't know how to get it. Here is what I think to do: the ramp function r(t) and the rect pτ(t). I know that r(t) is the integral of step u(t) which is integral of d(t), and I know the transform of u(t)..would that help? I guess I'm not realy sure what to do. In the solution they use integral of pτ(t) minus delta function d(t)..not sure why.
  2. jcsd
  3. Mar 14, 2014 #2

    rude man

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    Why not just perform the integral? X(f) = ∫-∞x(t) exp(-jwt) dt where w = 2πf.
  4. Mar 15, 2014 #3


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