**Distance Versus Directed Distance and Displacement**

Distance cannot be negative and distance travelled never decreases. Distance is a scalar quantity or a magnitude, whereas displacement is a vector quantity with both magnitude and direction.

The distance covered by a vehicle (for example as recorded by an odometer), person, animal, or object along a curved path from a point *A* to a point *B* should be distinguished from the straight line distance from *A* to *B*. For example whatever the distance covered during a round trip from *A* to *B* and back to *A*, the displacement is zero as start and end points coincide. In general the straight line distance does not equal distance travelled, except for journeys in a straight line.

Read more about this topic: Distance

### Other articles related to "distance versus directed distance and displacement, directed, distances":

**Distance Versus Directed Distance and Displacement**- Directed Distance

...

**Directed**distances are

**distances**with a direction or sense ... A

**directed**distance along a straight line from A to B is a vector joining any two points in a n-dimensional Euclidean vector space ... A

**directed**distance along a curved line is not a vector and is represented by a segment of that curved line defined by endpoints A and B, with some specific information ...

### Famous quotes containing the words distance and/or directed:

“After climbing a great hill, one only finds that there are many more hills to climb. I have taken a moment here to rest, to steal a view of the glorious vista that surrounds me, to look back on the *distance* I have come. But I can rest only for a moment, for with freedom comes responsibilities, and I dare not linger, for my long walk is not yet ended.”

—Nelson Mandela (b. 1918)

“Views of women, on one side, as inwardly *directed* toward home and family and notions of men, on the other, as outwardly striving toward fame and fortune have resounded throughout literature and in the texts of history, biology, and psychology until they seem uncontestable. Such dichotomous views defy the complexities of individuals and stifle the potential for people to reveal different dimensions of themselves in various settings.”

—Sara Lawrence Lightfoot (20th century)