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Math Help - Plot Eq. How to?

  1. #1
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    Plot Eq. How to?

    How you doing guys!

    I was wondering if someone would help me on how can I plot this Eq.

    a(t)=(t+2)[u(t+1)]-u(t-1)

    Thanks in Advance and Greets from Mexico!!
    Last edited by lorenzo; December 7th 2008 at 05:11 PM. Reason: Little typo mistake
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  2. #2
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    Hi lorenzo!

    Yeah, it's very difficult problem. We have to plot a function what contain a other unknown function as u(t).
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  3. #3
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    Quote Originally Posted by Skalkaz View Post
    Hi lorenzo!

    Yeah, it's very difficult problem. We have to plot a function what contain a other unknown function as u(t).

    Sorry since this is signals topic I made a wrong assumption.
    Actually u(t) happens to be the step function.

    1 |----->
    |
    --------------->t
    0 1
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  4. #4
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    If I understand well your step function jump at origin from 0 to 1. Therefore the function a(t) has two irregular point: t=1 and t=-1. You able to plot piece by pice such as [-inf -1], [-1 1], [1 inf]. During the intervals a(t) behaves as normal function.
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  5. #5
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    Quote Originally Posted by Skalkaz View Post
    If I understand well your step function jump at origin from 0 to 1. Therefore the function a(t) has two irregular point: t=1 and t=-1. You able to plot piece by pice such as [-inf -1], [-1 1], [1 inf]. During the intervals a(t) behaves as normal function.
    So in this case I have to to do every step independently, but based on my step function right!
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