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Laplace Transform concept

  1. Oct 26, 2008 #1
    1. The problem statement, all variables and given/known data
    If I had something like, et*u1(t), how would I convert it to F(s)

    2. Relevant equations
    ua(t)*f(t-a) = e-asF(s)

    3. The attempt at a solution
    From the general equation of transformation, I don't have f(t-a) and I don't think I can make one out of the exponential function. I originally don't have e(t-a), so is it okay to apply that general equation or am I supposed to use another one?

  2. jcsd
  3. Oct 26, 2008 #2


    Staff: Mentor

    e^t = e^(t - 0)
  4. Oct 26, 2008 #3
    Yes, but I also have ua(t)=u1t. And the formula says ua(t)*f(t-a), so wouldn't the value 'a' need to be consistent?
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