1(iii)), denoted as AB
uuur
 or
simply as ar , and read as ‘vector AB
uuur
’ or ‘vector ar ’ The point A from where the vector AB
uuur
 starts is called its initial point, and the
point B where it ends is called its terminal point The distance between initial and
terminal points of a vector is called the magnitude (or length) of the vector, denoted as
| AB
uuur
|, or | ar |, or a The arrow indicates the direction of the vector