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Unit vector normal to scalar field

  1. Feb 7, 2005 #1
    How do you find a unit vector normal to the surface of scalar field

    [tex]\phi(x,y,z)=x^2y+3xyz+5yz^2[/tex]?

    Should you apply the [tex]\nabla[/tex] operator to it?
     
  2. jcsd
  3. Feb 7, 2005 #2

    ZapperZ

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    That operation will give you a vector normal to the surface. To find the unit vector, you of course need to divide by its magnitude.

    Zz.
     
  4. Feb 7, 2005 #3
    Thanks..I got the answer!
     
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