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Fourier Transform in Matlab

  1. Oct 12, 2011 #1
    1. The problem statement, all variables and given/known data

    I need to find the Fourier Transform of g(t) using matlab,

    [tex]g(t) = tri(\frac{t}{2\pi })Cos(2\pi (\frac{5}{\pi })t)[/tex]

    2. Relevant equations

    How can this be done accurately since you need 't' to be from -infinity to +infinity?

    And how can you input a tri function in matlab?

    3. The attempt at a solution

    I tried using y=trimf(t,[3 6 8]); but when I multiply the trimf function and the cos function it says the matrices must have the same dimensions.

    Thanks for your help.
     
  2. jcsd
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