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Homework Help: Nonrelativistic limit

  1. Sep 19, 2007 #1
    1. The problem statement, all variables and given/known data
    For problem 6.2, in the expression x = a sigma/ sigma_1, sigma is the spatial parameter but what is sigma_1 and is a the x-coordinate of one endpoint of the string?

    Also, can someone give the first step I should take in order to solve this problem?

    2. Relevant equations

    3. The attempt at a solution
    Last edited: Sep 19, 2007
  2. jcsd
  3. Sep 21, 2007 #2
    does my question make sense to people?
  4. Sep 21, 2007 #3


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    Science Advisor
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    zwiebach uses the somewhat confusing notation that for an open string, sigma ranges from 0 to [itex] \sigma_1 [/itex] so [itex] \sigma_1 [/itex] is indeed the coordinate corresponding to the extremity of the string. Therefore x ranges from 0 to a (so a is the length of the string).
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