Direction (original) (raw)
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The direction from an object to another object
can be specified as a vector
with tail at
and head at
. However, since this vector has length equal to the distance between the objects in addition to encoding the direction from the first to the second, it is natural to instead consider the unit vector
(sometimes called the direction vector), which decouples the distance from the direction.
See also
Head, Tail, Unit Vector, Vector
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Cite this as:
Weisstein, Eric W. "Direction." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Direction.html