Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Undefined/No Limit

  1. Jun 23, 2011 #1
    Is there any difference between a limit that is undefined and a "does not exist"?

    From what I think,

    Undefined means it approaches +/- infinity (asymptotes) or a cusp, etc.

    Does not exist- RHS≠LHS

    Is this correct?
    Last edited: Jun 23, 2011
  2. jcsd
  3. Jun 24, 2011 #2


    User Avatar
    Science Advisor

    No. "undefined" and "does not exist" mean exactly the same thing.

    Going to +/- infinity is just particular ways in which a limit may not exit.
  4. Jun 24, 2011 #3
    Ok, thanks for clarification.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook