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Divergence in cylindrical coordinate system

  1. Oct 14, 2007 #1
    I am trying to understand the derivation of the divergence formula in cylindrical coordinates. www.csupomona.edu/~ajm/materials/delcyl.pdf [Broken] paper does a good job of explaining it but I don't understand 2 things that the author does.
    [tex]\frac{\partial\hat{\rho}}{\partial\phi} = \hat{\phi}[/tex] and [tex]\frac{\partial\hat{\phi}}{\partial\phi} = \hat{\rho}[/tex]
    Derivation is on page 3.
    Can anyone help me understand this?
     
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Oct 14, 2007 #2

    quasar987

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    go back to page 1: "derivation of unit vectors with the coordinates"
     
  4. Sep 5, 2010 #3
     
    Last edited by a moderator: Apr 25, 2017
  5. Sep 5, 2010 #4
    that one is found in page 1 of the link
     
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