Vector
- A quantity with a magnitude and a direction. Vectors are added like arrows, end to end, and the sum (for two) is the vector from the tail of the first vector to the tip of the second.
- There are a number of different representations. Given the vector A it is normal to print it in bold or it can be expressed as follows:
are unit vectors
- If x1=0 it is customary to omit it, eg
See also: Cauchy-Schwarz Inequality, Dot Product, Magnitude, Scalar, Vector Space.
Subjects: Algebra