Coordinate cartesiane ortogonali

$$\begin{array}{rcl} \nabla \wedge \vec{V} & = & \left( \ensu... ...}-\ensuremath{\frac{\partial u}{\partial y}}\right) \end{array}$$

$$\nabla \wedge \vec{V}= \left\vert \begin{array}{ccc} \vec{\i... ...{\frac{\partial }{\partial z}}\\ u&v&w \end{array}\right\vert$$