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Wht does this sign mean?

  1. Apr 12, 2012 #1
    ([itex]\frac{\partial z}{\partial x}[/itex])y

    the small y, what does it mean.
    the context this is used in is F(x,y,z) where each variable is a function of the other 2 variables.
     
  2. jcsd
  3. Apr 12, 2012 #2

    D H

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    It means that y is to be deemed a constant while taking the partial of z with respect to x.
     
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