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Math Help - Stepfunction and the value of C

  1. #1
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    Stepfunction and the value of C

    There is one thing there is bothering me about stepfunction...
    I know a stepfunction only can have the value of 0 and 1 (without anything multiplied)..
    and I can choose whenever i want it to go high or low depending on the value of C..
    but what if i choose C = 5..
    what will happen at U5(3-5) = U5(-2)??
    I know i will stay at 0, but why 0, can't you take a unit stepfunction to a negative number?..
    And if not.. why do we use the shiftning theorem when using stepfunction on ordinary function.. isn't to "remove" the negative area..
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  2. #2
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    Re: Stepfunction and the value of C

    Quote Originally Posted by kidi3 View Post
    There is one thing there is bothering me about stepfunction...
    I know a stepfunction only can have the value of 0 and 1 (without anything multiplied)..

    Where in the world did you get that idea? It is totally false!

    Have a look at this webpage.

    Are you thinking of the Heaviside step function?
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  3. #3
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    Re: Stepfunction and the value of C

    ohh.. meant unit step functiom or heaviside functions,
    Last edited by kidi3; June 5th 2013 at 10:31 AM.
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  4. #4
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    Re: Stepfunction and the value of C

    Anyone?
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  5. #5
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    Re: Stepfunction and the value of C

    Quote Originally Posted by kidi3 View Post
    Anyone?
    First of all DO NOT BUMP!. You can be banded for that.

    Have you studied Heaviside step function"]this page[/URL] ?

    If you have then post what questions you still may have. Actually the OP makes little sense.
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  6. #6
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    Re: Stepfunction and the value of C

    Is it just... that the unit step function u(t-c) is only on as long t>c and off as long t<c

    And there is nothing between.
    Last edited by kidi3; June 5th 2013 at 01:56 PM.
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