Do we need to specify the direction of rotation here?
A very informal analagous relationship could be done by imagining a hilly piece of land, then
X: the fastest way downhil
X rotated: contour lines on the elevation map, walking counterclockwise at the same elevation around the peak
And divergence of X, or curl of X rotated, is just the height map of the land.
Do we need to specify the direction of rotation here?
A very informal analagous relationship could be done by imagining a hilly piece of land, then
X: the fastest way downhil
X rotated: contour lines on the elevation map, walking counterclockwise at the same elevation around the peak
And divergence of X, or curl of X rotated, is just the height map of the land.