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Homework Help: Simple question about the gradient?

  1. Aug 23, 2010 #1
    1. The problem statement, all variables and given/known data
    When i see the upside down triangle squared .
    Is this the Gradient squared, or the second derivative of the x , y and z components
    And this is the Laplace operator
  2. jcsd
  3. Aug 23, 2010 #2


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    It's the Laplace operator. It's not the gradient squared. It's the sum of the second derivatives.
  4. Aug 23, 2010 #3
    Ok thanks, so i take the second derivatives and then add them up .
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