Scalar may refer to:
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Scalar (mathematics), 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, a quantity that behaves like a scalar, except that it changes sign under a parity inversion
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Scalar (computing), 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, 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
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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)
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