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vector    音标拼音: [v'ɛktɚ]
n. 向量,矢量,带菌者
vt. 无线电导引

向量,向量,带菌者无线电导引

vector
向量

vector
n 1: a variable quantity that can be resolved into components
2: a straight line segment whose length is magnitude and whose
orientation in space is direction
3: 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"
[synonym: {vector}, {transmitter}]
4: (genetics) a virus or other agent that is used to deliver DNA
to a cell

Vector \Vec"tor\, n. [L., a bearer, carrier. fr. vehere, vectum,
to carry.]
1. Same as {Radius vector}.
[1913 Webster]

2. (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}.
[1913 Webster]

Note: In a triangle, either side is the vector sum of the
other two sides taken in proper order; the process
finding the vector sum of two or more vectors is vector
addition (see under {Addition}).
[1913 Webster]

66 Moby Thesaurus words for "vector":
aerial infection, air line, airborne infection, axis, azimuth,
beeline, biological vector, carrier, chord, communicability,
compass bearing, compass direction, contagion, contagiousness,
contamination, course, cryptogenic infection, diagonal, diameter,
direct infection, direct line, directrix, droplet infection,
dust infection, edge, epidemiology, great-circle course,
hand infection, heading, indirect infection, infection,
infectiousness, lee side, magnetic bearing, mechanical vector,
normal, perpendicular, phytogenic infection, primary infection,
pyogenic infection, radius, radius vector, relative bearing,
right line, secant, secondary infection, segment, shortcut, side,
straight, straight course, straight line, straight stretch,
straightaway, streamline, subclinical infection, tack, taint,
tangent, transversal, true bearing, vehicle, virus,
waterborne infection, weather side, zoogenic infection

1. A member of a {vector space}.

2. A line or movement defined by its end points, or
by the current position and one other point. See {vector
graphics}.

3. A memory location containing the address
of some code, often some kind of {exception} handler or other
{operating system} service. By changing the vector to point
to a different piece of code it is possible to modify the
behaviour of the operating system.

Compare {hook}.

4. A one-dimensional {array}.

(1996-09-30)

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    vector 的存储是自动管理的，按需扩张收缩。 vector 通常占用多于静态数组的空间，因为要分配更多内存以管理将来的增长。 vector 所用的方式不在每次插入元素时，而只在额外内存耗尽时重分配。 分配的内存总量可用 capacity () 函数查询。
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    Instead, vector containers may allocate some extra storage to accommodate for possible growth, and thus the container may have an actual capacity greater than the storage strictly needed to contain its elements (i e , its size)





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