Why is a decaying exponential an energy signal?

Discussion in 'Math' started by jaygatsby, Feb 7, 2013.

  1. jaygatsby

    Thread Starter New Member

    Nov 23, 2011
    185
    23
    For a signal like e^{-xt}, the function never intercepts the x axis, but is asymptotic, right? So the total energy would not be a finite value, as I read elsewhere. What up with that?

    Thanks,
    J
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,140
    1,790
    If by "total energy" you mean the area under the curve it is most definitely finite, and it is equal to 1/x, if the limits of integration are 0 and infinity
     
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