key term - Divergence (∇ ·)

Definition

Divergence is a mathematical operation used in vector calculus that measures how much a vector field spreads out or converges at a given point. It determines whether there is a net flow of vectors away from or towards that point.

Related terms

Gradient (∇): The gradient represents the rate at which a scalar quantity changes with respect to position in space.

Curl (∇ ×):

Curl measures how much rotation or circulation exists in a vector field at each point.

Gauss's Law:

Gauss's law relates the electric flux through a closed surface to the charge enclosed by that surface and is based on the concept of divergence.