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Wolfram mistake?

  1. Oct 11, 2012 #1
    1. The problem statement, all variables and given/known data

    Folks, I think Wolfram has a mistake published here: http://mathworld.wolfram.com/SphericalCoordinates.html

    Their spherical unit vectors (for theta and phi) seem to be erroneous. Can someone double check this?


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 11, 2012 #2

    Dick

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    I doubt it's wrong. But there is more than one convention for what theta and phi mean in spherical coordinates. mathworld explains which one it's using. What's yours?
     
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