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Partial derivative

  1. Oct 6, 2008 #1
    1. The problem statement, all variables and given/known data

    I have an initial data of d= 0.012608, V = 320 volt, Q = 1.50e-8 and A = 1.25e-4. y = Qd/AV. what is Δy , the partial derivative of y with respect to d?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Oct 6, 2008 #2


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    When you take the partial derivative with respect to a variable, you treat all other variables as constants, so what is

    [tex]\frac{\partial}{\partial d} \left( \frac{Q}{AV} d \right)[/tex]

    when you treat [itex]\frac{Q}{AV}[/itex] as a constant?
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