A Note on the Gibbsian Representation of the Gradient of a Vector Field
In this note, we provide a important considerations of a familiar topic: the gradient of a vector field. The gradient of a vector field is a common quantity represented in continuum mechanics. However, even for Cartesian coordinate systems, there are two different representations for this quantity in common use, which leads to ambiguity in some results. We review the history leading to the \emph{Gibbsian representation} for the gradient of a vector field, and provide some suggestions to help clarify the meaning of such terms when represented in conventional Gibbsian vector or tensor notation. In an appendix, we briefly expand on the connection with the Gibbsian representation of the deformation and rotation tensors in the framework of geometric algebra (GA).