gradient operator in derivation in cylindrical

Discussion in 'Math' started by TheSpArK505, Feb 19, 2015.

  1. TheSpArK505

    Thread Starter Member

    Sep 25, 2013
    92
    0
    Hello everyone.
    My question is about deriving the Del (gradient) operator of cylindrical coordinates. I have reached the step of the theta term of the formula. where d/dtheta term is multiplied bu 1/r -or equivalently 1/rho- The question is attached .

    Waiting your clarification.
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,792
    Write your unit vectors in one coordinate system in terms of the unit vectors in the other. Then crank through the math.
     
  3. TheSpArK505

    Thread Starter Member

    Sep 25, 2013
    92
    0
    I got it. It comes from the derivative of arctan(y/x) with respect to x
     
  4. TheSpArK505

    Thread Starter Member

    Sep 25, 2013
    92
    0
    That one is for cylindrical coordinates
     
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