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*s(t)*=$\int_{t_0}^{t}\left | R'(\xi) \right | d\xi$ What is $\xi$ ?

  1. Sep 29, 2012 #1
    [itex]s(t)=\int_{t_0}^{t}\left | R'(\xi) \right | d\xi[/itex]
    What is [itex]\xi[/itex] ?

    In the above arc length formula with ##\xi##, what is ##\xi##?
     
    Last edited: Sep 29, 2012
  2. jcsd
  3. Sep 29, 2012 #2
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  4. Sep 29, 2012 #3

    micromass

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