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单词 scalar
释义

scalar


sca·lar

S0116300 (skā′lər, -lär′)n.1. a. A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction.b. Mathematics A number, numerical quantity, or element in a field.2. A device that yields an output equal to the input multiplied by a constant, as in a linear amplifier.adj. Of or relating to a scalar.
[Latin scālāris, of a ladder, from scālae, ladder; see scale2.]

scalar

(ˈskeɪlə) n1. (Mathematics) a quantity, such as time or temperature, that has magnitude but not direction. Compare vector1, tensor2, pseudoscalar, pseudovector2. (Mathematics) maths an element of a field associated with a vector spaceadj (Mathematics) having magnitude but not direction[C17 (meaning: resembling a ladder): from Latin scālāris, from scāla ladder]

sca•lar

(ˈskeɪ lər)

adj. 1. representable by position on a scale or line; having only magnitude: a scalar variable. 2. of, pertaining to, or utilizing a scalar. 3. ladderlike in arrangement or organization; graduated. n. 4. a quantity possessing only magnitude. Compare vector (def. 1). [1650–60; < Latin scālāris of a ladder. See scale3, -ar1]

sca·lar

(skā′lər) A quantity, such as mass, length, or speed, whose only property is magnitude; a number. Compare vector.
Thesaurus
Noun1.scalar - a variable quantity that cannot be resolved into componentsvariable quantity, variable - a quantity that can assume any of a set of values
Adj.1.scalar - of or relating to a musical scale; "he played some basic scalar patterns on his guitar"
2.scalar - of or relating to a directionless magnitude (such as mass or speed etc.) that is completely specified by its magnitude; "scalar quantity"
Translations
Skalarescalarscalaireescalar

scalar


scalar,

quantity or number possessing only sign and magnitude, e.g., the real numbers (see numbernumber,
entity describing the magnitude or position of a mathematical object or extensions of these concepts. The Natural Numbers

Cardinal numbers describe the size of a collection of objects; two such collections have the same (cardinal) number of objects if their
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), in contrast to vectorsvector,
quantity having both magnitude and direction; it may be represented by a directed line segment. Many physical quantities are vectors, e.g., force, velocity, and momentum.
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 and tensorstensor,
in mathematics, quantity that depends linearly on several vector variables and that varies covariantly with respect to some variables and contravariantly with respect to others when the coordinate axes are rotated (see Cartesian coordinates).
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; scalars obey the rules of elementary algebra. Many physical quantities have scalar values, e.g., length, area, mass, energy, and electric charge. Such quantities as velocity, force, momentum, and spin are vectors and follow different algebraic rules.

Scalar

 

a quantity such that each of its values can be expressed by a single (real) number. Examples of scalars include length, area, time, mass, density, temperature, and work. The term “scalar” is used—sometimes simply as a synonym for “number”—in vector analysis, where a scalar is distinguished from a vector.

scalar

[′skā·lər] (computer science) A single value or item. (mathematics) One of the algebraic quantities which form a field, usually the real or complex numbers, by which the vectors of a vector space are multiplied. (physics) A quantity which has magnitude only and no direction, in contrast to a vector. A quantity which has magnitude only, and has the same value in every coordinate system. Also known as scalar invariant.

scalar

1. a quantity, such as time or temperature, that has magnitude but not direction 2. Maths an element of a field associated with a vector space 3. having magnitude but not direction

scalar

(mathematics)A single number, as opposed to a vector ormatrix of numbers. Thus, for example, "scalarmultiplication" refers to the operation of multiplying onenumber (one scalar) by another and is used to contrast thiswith "matrix multiplication" etc.

scalar

(architecture)In a parallel processor or vector processor, the "scalar processor" handles all the sequentialoperations - those which cannot be parallelised or vectorised.

See also superscalar.

scalar

(programming)Any data type that stores a single value(e.g. a number or Boolean), as opposed to an aggregatedata type that has many elements. A string is regarded as ascalar in some languages (e.g. Perl) and a vector ofcharacters in others (e.g. C).

scalar

A single item or value. Contrast with vector and array, which are made up of multiple values. See scalar processor.

scalar


scalar

 [ska´lar] 1. a physical quantity specified by a single number (a magnitude or point on a scale), such as mass or temperature. See also vector.2. pertaining to a scalar quantity.
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SCALAR


AcronymDefinition
SCALARSouthern California Association for Language Assessment Research

scalar


Related to scalar: scalar field, scalar product, Scalar waves
  • noun

Words related to scalar

noun a variable quantity that cannot be resolved into components

Related Words

  • variable quantity
  • variable
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更新时间:2024/12/22 19:36:10