| Concept definition: |
The smallest angle from vector A to vector B where A is the reference vector with origin in the local x-y plane, perpendicular to the local normal, and defined by the projection onto this plane of the vector toward magnetic north and B is the projection onto the surface plane of the vector of interest; vector azimuth magnetic. The positive sense is clockwise when looking in the <DIRECTION> of the cross product AxB. |
