Definition:Vector


 * Definition:Vector (Physics) or Definition:Vector (Applied Mathematics), or both: What was described as 'directed line segment'
 * Vector (Linear Algebra): an element of a general $K$-vector space
 * Vector (Euclidean Space): a vector (linear algebra) whose vector space is a Euclidean space
 * Definition:Directed Line Segment: when the base point matters
 * Definition:Vector Notation

Also see

 * Definition:Arrow