# vector

## Definitions

• WordNet 3.6
• n vector (genetics) a virus or other agent that is used to deliver DNA to a cell
• n vector a variable quantity that can be resolved into components
• n vector any agent (person or animal or microorganism) that carries and transmits a disease "mosquitos are vectors of malaria and yellow fever","fleas are vectors of the plague","aphids are transmitters of plant diseases","when medical scientists talk about vectors they are usually talking about insects"
• n vector a straight line segment whose length is magnitude and whose orientation in space is direction
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Webster's Revised Unabridged Dictionary
• Vector (Math) A directed quantity, as a straight line, a force, or a velocity. Vectors are said to be equal when their directions are the same and their magnitudes equal. Cf. Scalar.
• Vector Same as Radius vector.
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Century Dictionary and Cyclopedia
• n vector In quaternions, a quantity which, being added to any point of space, gives as the sum that point which is at a certain distance in a certain direction from the first. Vectors are said to be equal when their directions and magnitudes are the same. Unit vectors in quaternions are considered as equivalent to quadrantal versors having their axes in the directions of vectors; the word vector has accordingly sometimes, but incorrectly, been used in the sense of a quadrantal versor. Every quaternion can be resolved in one way, and one way only, into a sum of a scalar and a vector; and this vector is called the vector of the quaternion, and is denoted by writing V before the sign of the quaternion. Thus, Vq denotes the vector of the quaternion q.
• n vector Hence— A directive quantity; a quantity determined by two numbers giving its direction and a third giving its magnitude.
• vector Of the nature of or concerned with vectors.
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Chambers's Twentieth Century Dictionary
• n Vector vek′tor (math.) any directed quantity, as a straight line in space, involving both its direction and magnitude
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## Etymology

Webster's Revised Unabridged Dictionary
L., a bearer, carrier. fr. vehere, vectum, to carry
Chambers's Twentieth Century Dictionary
L.,—vehĕre, vectum, to convey.

## Usage

### In literature:

A Short Treatise on Vector Analysis.
"Mr. Edward Arnold's New and Popular Books, December, 1901"
There are at least fifty vectors, all pointing in different directions.
"Masters of Space" by Edward Elmer Smith
I, Captain Binkar Morancos, am assigned to the 334th Vector, which is presently under the orders of the Commander, Sector Nine.
"Indirection" by Everett B. Cole
The Radius Vector is the imaginary straight line joining the centres of the sun and the earth or planet.
"Aether and Gravitation" by William George Hooper
They concerned the error of the radius vector.
"Pioneers of Science" by Oliver Lodge
The position of the particle with respect to the origin is determined by the magnitude and direction of this vector.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3" by Various
The thrust vector is unknown.
"Industrial Revolution" by Poul William Anderson
If there's an animal vector to the disease, we've never discovered it.
"The Planet Savers" by Marion Zimmer Bradley
"Deepfreeze" by Robert Donald Locke
The room-clerk reported that Mr. J. P. Turner was registered to room 408, but in "J" vector, not "H".
"Forsyte's Retreat" by Winston Marks
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### In poetry:

Poet,oracle and wit
Like unsuccessful anglers by
Th ponds of apperception sit,
Baiting with the wrong request
The vectors of their interest;
At nightfall tell the angler's lie.
"The Waters" by W H Auden

### In news:

Billings Air Service has awarded a contract to Vector Aerospace Helicopter Services North America-Langley (Booth No 2922) to complete a shortening modification on a Sikorsky S-61 helicopter.
You can simplify the process of measuring crossed cylinders by applying the principles of vector analysis to optics.
Mosquito and Vector Control District schedules more spraying.
Laser Vector Technique Measures 3D Volumetric Positioning Errors.
Vector & Hippotizer Duet On X Factor – Battle Of The Stars.
Vector Security named video integrator of the year.
Jeff Schulz, Video Project Specialist, and Jim Rao, Director of Video Technology, Vector Security, Inc.
the red vectors represent the fastest winds, while blue vectors stand for slower winds.
Vector Fabrics Joins ARM Connected Community.
Vector Solo 85kV Waterborne.
Designed to increase user comfort and reduce fatigue, the Vector Solo cordless guns offer portability and improved flexibility to enhance movement.
Content tagged with " vector ".
Together, the X, Y, Z and I, J, K coordinates form vectors that define tool position and orientation.
One of the roles of the postprocessor in five-axis programming is to relate these vectors to the corresponding pivot points in the actual machine structure.
"This isn't going to work," you say aloud as you roll out on the assigned vector and prepare to shoot the approach.
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### In science:

In a spacetime with nonmetricity, the length of a vector changes if we parallely transport the vector along a curve whose tangent vector is X .
On the solutions of the Cartan equation in Metric Affine Gravity
The vector x1 can be expressed as a linear combination of the vectors δv (v ∈ V ), which means that there is a vector y ∈ RV so that x1 = M y .
Determining the Genus of a Map by Local Observation of a Simple Random Process
That is, ﬁx the magnitude B in the vector ﬁeld B = Bn while performing the average over all realizations of the direction vector ﬁeld n permitted by the vector equation (7).
Intermittency and the passive nature of the magnitude of the magnetic field
Derivatives of vector ﬁelds are given by the commutator: the vector ﬁeld hb along the local integral curve of vector ﬁeld ha .
Spin and Anholonomy in General Relativity
We can therefore examine basis vectors that do not break the gauge symmetries 1,2χj,j+1 , (y , ω | ¯y, ¯ω), ¯ψ 1,···,5 , ¯ηj } = 1 further, i.e. basis vectors of the form bj , with {ψµ for some selection of (y , ω | ¯y, ¯ω) = 1 assignments such that the additional vectors bj produce massless SO(10) spinorials.
On the Number of Chiral Generations in Z2 X Z2 Orbifolds
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