Vector

In mathematics

• Euclidean vector, a geometric entity endowed with both length and direction, an element of a Euclidean vector space
• Coordinate vector, in linear algebra, an explicit representation of an element of any abstract vector space
• Probability vector, in statistics, a vector with non-negative entries that add up to one
• Row vector or column vector, a one-dimensional matrix often representing the solution of a system of linear equations
• Tuple, an ordered list of numbers, sometimes used to represent a vector

In computer science

• A one-dimensional array
• Vector (STL), a data type in the C++ Standard Template Library
• Dope vector, a data structure used to store information about an array
• Vector processor, a computer processor which works on arrays of several numbers at once
• Vector graphics, images defined by geometric primitives as opposed to bitmaps
• Interrupt vector, the location in memory of an interrupt handling routine
• Vector (malware), methods used by computer viruses and malware to propagate themselves
• Vector-06C, a computer developed in the USSR

In biology

• Vector (biology), organism that transmits diseases, infections, or foreign living material
• Vector State Research Center of Virology and Biotechnology
• Vector (molecular biology), vehicle used to transfer genetic material to a target cell
• Plasmid vector
• Viral vector, a virus modified to deliver foreign genetic material into a cell
• Cloning vector
• Expression vector, a plasmid specifically used for protein expression in the target

In business

• Vector Limited, a New Zealand gas and electricity supplier
• Vector Marketing, marketing arm of Alcas Corporation
• Vector Motors, an automobile manufacturer
• Vector W2, a concept car created by Vector Motors

In entertainment

• Vector (novel), a 1999 novel by Robin Cook
• Vector (band), a 1980s New Wave rock band
• Vector Prime, a Star Wars novel written by R. A. Salvatore
• Vectorman, a game for Sega Genesis platform

Fictional elements

• Vector the Crocodile, a character in the Sonic the Hedgehog video game series
• Vector (Battle Angel Alita), a character in the Battle Angel Alita manga series
• Vector Sigma, a computer in the Transformers universe
• Septima Vector, a character in the Harry Potter universe
• Vector, a location in the video game Final Fantasy VI
• Vector Industries, an organization in the Xenosaga video game series

Other uses

• Vector (food), a cereal manufactured by Kellogg's
• Vector (journal), the critical journal of the British Science Fiction Association
• Light verb, or vector, in grammar, a verb participating in complex predication
• Vectors Journal of Culture and Technology in a Dynamic Vernacular, an online journal