|Definition:|| any of the n scalar quantities in the representation of a vector quantity Q as the linear combination of the base vectors |
NOTE 1 Instead of treating each component of a vector quantity as a quantity (i.e. the product of a numerical value and a unit of measurement), the vector quantity Q may be represented as a vector of numerical values multiplied by the unit:
where are numerical values, is the unit, and are the unit vectors. Similar considerations apply to tensor quantities.
NOTE 2 The components of a vector quantity are transformed by a coordinate transformation like the coordinates of a position vector.
NOTE 3 The term "coordinate" is generally used when the vector quantity is a position vector. This usage is consistent with the definition of the coordinates of a vector in mathematics (102-03-09).