If the flux entering any element of space is the same as that leaving it, i.e., Div v = 0 everywhere, then such a vector point function is called ______________.

In fluid dynamics and vector calculus, Gauss's Divergence Theorem relates:

For a vector field F(x,y,z) = yz i + xz j + xy k, compute the divergence ∇ · F.

Divergence of a three-dimensional radial position vector field ṙ = x î + y ĵ + z k̂ will be: