[Frolic_RC2]

Vector -

Mathematics.
A quantity, such as velocity, completely specified by a magnitude and a direction.
A one-dimensional array.
An element of a vector space.

Magnitude -

Mathematics.
A number assigned to a quantity so that it may be compared with other quantities.
A property that can be described by a real number, such as the volume of a sphere or the length of a vector.


Eh, now I need to decypher the meanings, althought I think I get it...