Another quantity represented by a vector is force, since it has a magnitude and direction.
Each vector represents the direction of the movement of air at that point.
Assume this spin can be represented by a real vector, pointing in any direction.
These vectors represent a ball in 3D with an unusual topology.
At any location, the Earth's magnetic field can be represented by a three-dimensional vector (see figure).
At every point in the field, the curl of that field is represented by a vector.
Each move may be represented by a vector.
Real motion has both direction and magnitude and must be represented by a vector.
The vector may represent hard decisions on the bits or soft decisions.
A vector representing velocity has both direction and magnitude.