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Math Help - Laplace Transform

  1. #1
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    Laplace Transform

    I'm having trouble with the Laplace transform of this function: u_\pi(t)(t-\pi)-u_{2\pi}(t)(t-\pi)

    For the first term I have \frac{e^{-\pi s}}{s^2}, but I can't do the second term.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by petition Edgecombe View Post
    I'm having trouble with the Laplace transform of this function: u_\pi(t)(t-\pi)-u_{2\pi}(t)(t-\pi)

    For the first term I have \frac{e^{-\pi s}}{s^2}, but I can't do the second term.
    u_{2\pi}(t)(t-\pi)=u_{2\pi}(t)[(t-2\pi)+\pi]

    CB
    Last edited by CaptainBlack; December 10th 2008 at 10:45 PM.
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  3. #3
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    So u_{2\pi}(t)(t-2\pi)+\pi is also u_{2\pi}(t)[(t-2\pi)+\pi] ?
    Last edited by CaptainBlack; December 10th 2008 at 10:47 PM. Reason: because I hit edit when I was aiming for quote :(
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by petition Edgecombe View Post
    So u_{2\pi}(t)(t-2\pi)+\pi is also u_{2\pi}(t)[(t-2\pi)+\pi] ?
    Sorry that is what I meant, missed the brackets.

    CB
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