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Coordinate question - above x-z plane

  1. Nov 22, 2013 #1
    Coordinate question -- "above x-z plane"

    1. The problem statement, all variables and given/known data

    Say I want to verify a condition is true that ∇∇F = 0 above the x-z plane.Where F(x,y,z).

    Does the "above x-z plane" mean in the x-z plane i.e. we evaluate ∇∇F(x,0,z) ?
  2. jcsd
  3. Nov 22, 2013 #2


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    I would think "above the xz plane" would mean where y>0.
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