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

Divergence in cylindrical coordinate system

  1. Oct 14, 2007 #1
    I am trying to understand the derivation of the divergence formula in cylindrical coordinates. This 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?
     
  2. jcsd
  3. Oct 14, 2007 #2

    quasar987

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    go back to page 1: "derivation of unit vectors with the coordinates"
     
  4. Sep 5, 2010 #3
    As note below, one finds z^ etc (unit vector), in variation vectors does the differentiation with respect to [tex]\rho[/tex],[tex]\phi[/tex], z

    OK
    Now my question is how do you find

    [tex]\overline{}[/tex][tex]\rho[/tex] (line above, could not get that to work)= x [tex]\widehat{}[/tex]x+ y [tex]\widehat {}[/tex]y
     
  5. Sep 5, 2010 #4
    that one is found in page 1 of the link
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Divergence in cylindrical coordinate system
Loading...