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The VLCI was initially released on June 30, 1961 as the Value Line Geometric Composite Index, a equally weighted index using a geometric average. [2] Since February 1, 1988 the VLCI has also included the Value Line Arithmetic Composite Index, a similar index that instead uses a arithmetic average.
Geometry index. In coordination chemistry and crystallography, the geometry index or structural parameter (τ) is a number ranging from 0 to 1 that indicates what the geometry of the coordination center is. The first such parameter for 5-coordinate compounds was developed in 1984. [1] Later, parameters for 4-coordinate compounds were developed. [2]
The degree of circularity of an ellipse is quantified by eccentricity, with values between 0 to 1, where 0 is a perfect circle and 1 is a vertical line. [1] To accommodate human shape data in a greater range, Thomas and colleagues mapped eccentricity in a range of 1 to 20 by using the equation: [1] Body Roundness Index = 364.2 - 365.5 x ...
Eigenvalues and eigenvectors. In linear algebra, an eigenvector (/ ˈaɪɡən -/ EYE-gən-) or characteristic vector is a vector that has its direction unchanged by a given linear transformation. More precisely, an eigenvector, , of a linear transformation, , is scaled by a constant factor, , when the linear transformation is applied to it: .
Geometric (arithmetico ... where an interval with a higher index lies to the right of one ... The value of the line integral is the sum of values of the ...
In general relativity, the metric tensor (in this context often abbreviated to simply the metric) is the fundamental object of study. The metric captures all the geometric and causal structure of spacetime, being used to define notions such as time, distance, volume, curvature, angle, and separation of the future and the past.
Valuation (algebra) In algebra (in particular in algebraic geometry or algebraic number theory), a valuation is a function on a field that provides a measure of the size or multiplicity of elements of the field. It generalizes to commutative algebra the notion of size inherent in consideration of the degree of a pole or multiplicity of a zero ...
and lowered by: and for a mixed tensor: We need not raise or lower all indices at once: it is perfectly fine to raise or lower a single index. Lowering an index of an tensor gives a tensor, while raising an index gives a (where have suitable values, for example we cannot lower the index of a tensor.)