This page evaluates the gradient of a 2D or 3D vector field. That is, $\nabla f = \dfrac{\partial f}{\partial x} \hat{\textbf{i}} + \dfrac{\partial f}{\partial y} \hat{\textbf{j}} + \dfrac{\partial f}{\partial z} \hat{\textbf{k}}$.

The 2D or 3D vector field $f(x, y, z)$.