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What (who) is scalar irradiance - definition
THEORY IN PHYSICS WITH SCALARS AND TENSORS BOTH DESCRIBING A FORCE OR INTERACTION
Scalar-Tensor; Scalar-Tensor theory; Scalar Tensor; Scalar-Tensor theories; Scalar-Tensor Theories; Scalar-tensor theories; Scalar-tensor theory
scalar
WIKIMEDIA DISAMBIGUATION PAGE
Scalars; Scalar quantity; Scalar quantities; Scalar (disambiguation); Scalar value
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
WIKIMEDIA DISAMBIGUATION PAGE
Scalars; Scalar quantity; Scalar quantities; Scalar (disambiguation); Scalar value
·noun In the quaternion analysis, a quantity that has magnitude, but not direction;
- distinguished from a vector, which has both magnitude and direction.
Scalar curvature
SCALAR QUANTITY CONSTRUCTED OUT OF SECOND DERIVATIVES OF A (PSEUDO-)RIEMANNIAN METRIC
Ricci curvature scalar; Ricci scalar; Ricci scalar curvature; Curvature scalar; Curvature Scalar
In the mathematical field of Riemannian geometry, the scalar curvature (or the Ricci scalar) is a measure of the curvature of a Riemannian manifold. To each point on a Riemannian manifold, it assigns a single real number determined by the geometry of the metric near that point.
Wikipedia
Scalar–tensor theory
In theoretical physics, a scalar–tensor theory is a field theory that includes both a scalar field and a tensor field to represent a certain interaction. For example, the Brans–Dicke theory of gravitation uses both a scalar field and a tensor field to mediate the gravitational interaction.
