Scalar may refer to:
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Scalar (mathematics)
A scalar is an element of a field which is used to define a ''vector space''.
In linear algebra, real numbers or generally elements of a field are called scalars and relate to vectors in an associated vector space through the operation of scala ...
, an element of a field, which is used to define a vector space, usually the field of real numbers
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Scalar (physics)
In physics, scalars (or scalar quantities) are physical quantities that are unaffected by changes to a vector space basis (i.e., a coordinate system transformation). Scalars are often accompanied by units of measurement, as in "10 cm".
Examples o ...
, a physical quantity that can be described by a single element of a number field such as a real number
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Lorentz scalar
In a relativistic theory of physics, a Lorentz scalar is an expression, formed from items of the theory, which evaluates to a scalar, invariant under any Lorentz transformation. A Lorentz scalar may be generated from e.g., the scalar product of ...
, a quantity in the theory of relativity which is invariant under a Lorentz transformation
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Pseudoscalar
In linear algebra, a pseudoscalar is a quantity that behaves like a scalar, except that it changes sign under a parity inversion while a true scalar does not.
Any scalar product between a pseudovector and an ordinary vector is a pseudoscalar. The ...
, a quantity that behaves like a scalar, except that it changes sign under a parity inversion
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Scalar (computing)
Scalar processors are a class of computer processors that process only one data item at a time. Typical data items include integers and floating point numbers.
Classification
A scalar processor is classified as a single instruction, single data ...
, any non-composite value
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Scalar boson
A scalar boson is a boson whose spin equals zero. ''Boson'' means that the particle's wave function is symmetric under particle exchange and therefore follows Bose–Einstein statistics. The spin-statistics theorem implies that all bosons have a ...
, in physics, a boson subatomic particle whose spin equals zero
See also
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dot product
In mathematics, the dot product or scalar productThe term ''scalar product'' means literally "product with a scalar as a result". It is also used sometimes for other symmetric bilinear forms, for example in a pseudo-Euclidean space. is an algebra ...
, also known as scalar product
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dimensionless quantity
A dimensionless quantity (also known as a bare quantity, pure quantity, or scalar quantity as well as quantity of dimension one) is a quantity to which no physical dimension is assigned, with a corresponding SI unit of measurement of one (or 1) ...
, also known as scalar quantity
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Inner product space
In mathematics, an inner product space (or, rarely, a Hausdorff pre-Hilbert space) is a real vector space or a complex vector space with an operation called an inner product. The inner product of two vectors in the space is a scalar, often den ...
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Scalar field
In mathematics and physics, a scalar field is a function (mathematics), function associating a single number to every point (geometry), point in a space (mathematics), space – possibly physical space. The scalar may either be a pure Scalar ( ...
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Scale (music)
In music theory, a scale is any set of musical notes ordered by fundamental frequency or pitch. A scale ordered by increasing pitch is an ascending scale, and a scale ordered by decreasing pitch is a descending scale.
Often, especially in the ...
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Scaler (disambiguation) Scaler may refer to:
* Periodontal scaler, an anti-plaque tool
* Video scaler, a system which converts video signals from one resolution to another
* ''Scaler'' (video game), a 2004 video game
* Fish scaler, a food preparation utensil
See also
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Pterophyllum scalare
''Pterophyllum scalare'', most commonly referred to as angelfish or freshwater angelfish, is the most common species of ''Pterophyllum'' kept in captivity. It is native to the Amazon Basin in Peru, Colombia, and Brazil. Particularly to the Ucayali ...
'' (Lichtenstein, 1823), a species of freshwater angelfish
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Scala (disambiguation)
Scala or SCALA may refer to:
Automobiles
* Renault Scala, multiple automobile models
* Škoda Scala, a Czech compact hatchback
Music
* Scala (band), an English electronic music group
* Escala (group), an electronic string quartet formerly known ...
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