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

Limits and prefered methods

  1. Jul 10, 2008 #1
    Having read many of the posts on limits over the past year or so (and having been told by a few of the posters) I have come to see that L'Hopital's rule is not a favored method of professors and grad students. Why is this and/or what would I be better spending my time perfecting (for I'm a big fan of L'Hopital's as of now)?
     
  2. jcsd
  3. Jul 10, 2008 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    L'Hopital's is quite often "overkill". It works but it is, in my opinion, better to understand how to take the limit than just turn the crank of a powerful machine.
     
  4. Jul 11, 2008 #3
    In my opinion...

    The De L'Hopital method is demontrasted to work only under certain Hypothesys that are often hard (or boring) to check.
    So, even if it lead to the right result, to be mathematically sure that you could legittimately apply it is a longer procedure than using an alternative method.

    I think using Taylor approssimation of a functon to a polinomial is a more precise and worth method and in some way we can consider the De L'Hopital method as a brief and imprecise way of applying the Taylor series to solve indeterminateness in claclulating the limits.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Limits and prefered methods
  1. Limit of (Replies: 13)

  2. Limit of this (Replies: 21)

  3. No limit (Replies: 3)

  4. Limit ? (Replies: 2)

Loading...