Определение scalar curl в Английский Язык Английский Язык словарь
The coefficient of k in the three-dimensional curl of a two-dimensional vector field
Since the curl of the vector field \vec{F}=(xy,xy,0) is the vector field \vec{\nabla}\times\vec{F}=(0,0,y-x), the scalar curl of the vector field \vec{G}=(xy,xy) is the scalar field y-x\;.