# Directed Line Segment

## Directed Line Segment

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 $$\overrightarrow{\textrm{AB}}$$ :