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where in the last command we have expanded each component on r to get a convential result.
The vector Laplacian can be obtained from (@ is Moon and Spencer notation)
@ B ≡ grad(diverge B) – curl (curl B) = " ∇2 B "
Recall that [@B]i =∇2[Bi] only in Cartesian coordinates, where ∇2 is the scalar Laplacian.
The reader interested in learning how Maple computes all these curvilinear coordinate expressions will
find the answer in our document "Tensor Analysis and Curvilinear Coordinates".
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