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Math Help - Two sided limit of the signum function

  1. #1
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    Mar 2009
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    Gold Coast, Queensland, Australia
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    Two sided limit of the signum function

    Hi

    I'm just wondering, the limit of the signum function from the right side is 1 and the limit of the signum function from the left side is -1.
    What do we say about the 2-sided limit? Do we say it doesn't exist?

    David.
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  2. #2
    Member
    Joined
    Mar 2009
    From
    Gold Coast, Queensland, Australia
    Posts
    105

    limit

    It's ok, I saw a video on you tube.
    I have found that the two-sided limit doesn't exist when the limits from each side differ.
    thanks.
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