SEARCH MATHEMATICA 8 DOCUMENTATION

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Vector Analysis Package Symbol

Grad

Grad[f]
gives the gradient,

f, of the scalar function f in the default coordinate system.

Grad[f, coordsys]
gives the gradient of f in the coordinate system coordsys.

To use Grad, you first need to load the Vector Analysis Package using Needs["VectorAnalysis`"].

Needs["VectorAnalysis`"]

Gradient of a function in Cartesian coordinates: