What's the difference between saying that a vector's direction is north of east and north east?
I haven't come across this phrase in my Nav courses. There is North by North East and there is East by North East, which lie on either side of North East. However, it is more usual to use Degrees and minutes (and decimals of a minute) to describe a bearing or course.north of east
The meaning of that nomenclature is very vague. North of East could take you one minute of arc or almost 90 degrees. (Adding a N vector of undefined magnitude)In intro classes, "north of east" means go "north of the eastern direction" (trying to describe a counterclockwise acute angle from the positive x-axis).