Div

Div[{f1, ..., fn}, {x1, ..., xn}] gives the divergence ∂f1/∂x1 + ... + ∂fn/∂xn.

Examples

Divergence of a vector field:

Div[{x^2, y^2, z^2}, {x, y, z}]
(* 2x + 2y + 2z *)

2D divergence:

Div[{x, y}, {x, y}]
(* 2 *)

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