Curl

In vector calculus, the curl is a vector operator that describes the infinitesimal rotation of a vector field in three-dimensional Euclidean space. At every point in the field, the curl of that point is represented by a vector. Curl is an extension of torque.

Given a vector field $\mathbf {F}$, the curl of $\mathbf {F}$ can be written as $\operatorname {curl} \mathbf {F}$ or $\nabla \times \mathbf {F}$, where $\nabla$ is the gradient and $\times$ is the cross product operation.

Related pages

• Divergence