differential operator describing the rotation at a point in a 3D vector field From Wikipedia, the free encyclopedia
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 , the curl of can be written as or , where is the gradient and is the cross product operation.[1][2]
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