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The Divergence of a Vector Field


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Invariance of divergence


It can be shown that the divergence of a vector function does not depend on the orientation of the Cartesian coordinates. In other words, if the point [Equation goes here - download the original pdf to see it.] is represented by another Cartesian coordinate system [Equation goes here - download the original pdf to see it.] , with a corresponding alteration in the representation of v [Equation goes here - download the original pdf to see it.] then [Equation goes here - download the original pdf to see it.] The proof requires techniques as yet not introduced at this level.
Contents of
The Divergence of a Vector Field

1 The divergence of a vector field
2 Invariance of divergence
3 The divergence and the Laplacian
4 Continuity equation of a compressible fluid flow

Related articles: (1) Introduction to Potential Theory and Laplace's Equation, (2) The Curl of a Vector Field