What (who) is scalars - definition
WIKIMEDIA DISAMBIGUATION PAGE
Scalars; Scalar quantity; Scalar quantities; Scalar (disambiguation); Scalar value
scalar
1. <mathematics> A single number, as opposed to a vector or
matrix of numbers. Thus, for example, "scalar
multiplication" refers to the operation of multiplying one
number (one scalar) by another and is used to contrast this
with "matrix multiplication" etc.
2. <architecture> In a parallel processor or {vector
processor}, the "scalar processor" handles all the sequential
operations - those which cannot be parallelised or vectorised.
See also superscalar.
3. <programming> Any data type that stores a single value
(e.g. a number or Boolean), as opposed to an aggregate
data type that has many elements. A string is regarded as a
scalar in some languages (e.g. Perl) and a vector of
characters in others (e.g. C).
(2002-06-12)
Scalar
·noun In the quaternion analysis, a quantity that has magnitude, but not direction;
- distinguished from a vector, which has both magnitude and direction.
Ricci scalars (Newman–Penrose formalism)
CONSIST OF THREE REAL SCALARS, THREE (OR SIX) COMPLEX SCALARS AND THE NP CURVATURE SCALAR
Wikipedia talk:Articles for creation/Ricci scalars (Newman-Penrose formalism); Ricci scalars (Newman-Penrose formalism)
In the Newman–Penrose (NP) formalism of general relativity, independent components of the Ricci tensors of a four-dimensional spacetime are encoded into seven (or ten) Ricci scalars which consist of three real scalars \{\Phi_{00}, \Phi_{11}, \Phi_{22}\}, three (or six) complex scalars \{\Phi_{01}=\overline{\Phi}_{10}\,,\Phi_{02}=\overline{\Phi}_{20}\,,\Phi_{12}=\overline{\Phi}_{21}\} and the NP curvature scalar \Lambda. Physically, Ricci-NP scalars are related with the energy–momentum distribution of the spacetime due to Einstein's field equation.
Wikipedia
Scalar
Scalar may refer to:
- Scalar (mathematics), an element of a field, which is used to define a vector space, usually the field of real numbers
- Scalar (physics), a physical quantity that can be described by a single element of a number field such as a real number
- Lorentz scalar, a quantity in the theory of relativity which is invariant under a Lorentz transformation
- Pseudoscalar, a quantity that behaves like a scalar, except that it changes sign under a parity inversion
- Scalar (computing), any non-composite value
- Scalar boson, in physics, a boson subatomic particle whose spin equals zero
Pronunciation examples for scalars
1. So here we have a bunch of numbers, three scalars,
Dyalog Modern Programming Language _ Morten Kromberg _ Talks at Google
2. Those of you who aren't with a technical background, scalars
Einstein's Greatest Mistake _ David Bodanis _ Talks at Google
