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Homework Help: Gradient in different cooridinates

  1. Jul 22, 2011 #1
    1. The problem statement, all variables and given/known data

    attachment.php?attachmentid=37440&stc=1&d=1311346926.jpg

    2. Relevant equations



    3. The attempt at a solution
    I saw from a book this is a quick way to get gradient in different cooridinates.

    However what f, g and h are? And how do I know that in rectangular coor. f=g=h=1 and etc?
     

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  3. Jul 22, 2011 #2

    hunt_mat

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    Homework Helper

    I am always a bit suspicious about these formulae. My advice id to go from first principles, learn how to do it and then when you need then again, look it up in a book.
     
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