Portion of a directed line located between two points on the line.

### Symbol

The directed line segment *AB* may be written as \(\overrightarrow{\textrm{AB}}\).

Therefore : \(\overrightarrow{\textrm{AB}}\) = –\(\overrightarrow{\textrm{BA}}\).

### Example

This is the directed line segment *AB*, which may be written as \(\overrightarrow{\textrm{AB}}\) :