metric


Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Idioms, Wikipedia.
Related to metric: metric system

metric

1. of or relating to the metre or metric system
2. Maths denoting or relating to a set containing pairs of points for each of which a non-negative real number ρ(x, y) (the distance) can be defined, satisfying specific conditions
3. Maths the function ρ(x, y) satisfying the conditions of membership of such a set (a metric space)

Metric

 

a mathematical term that denotes the rule for determining a given distance between any two points (elements) of a given set A. A real number function that satisfies the following three conditions is called the distance ρ (a, b) between the points a and b of the set A: (1) ρ (a, b) ≧ 0, where ρ(a, b) = 0 if and only if a = b; (2) ρ(a, b) = ρ(b, a); and (3) ρ(a, b) + ρ(b, c) ≧ ρ(a, c). For a given set M, a metric may be introduced in other ways. For example, on a plane we may take not only the ordinary Euclidean distance

as the distance between points a and b having coordinates (x1, y1) and (x2, y2), respectively, but we may take other distances as well, for example,

ρ1(a, b) = ǀx1x2ǀ + ǀy1y2ǀ

In (functional and coordinate) vector spaces a metric is often defined as a norm or, sometimes, as a scalar product. In differential geometry, a metric is introduced by specifying an element of arc length by means of a differential quadratic form. A set that has a metric introduced in it is referred to as a metric space.

A metric is sometimes understood to denote a rule for determining not only distances but also angles; an example is a projective metric.

V. I. SOBOLEV

metric

[′me·trik]
(mathematics)
A real valued “distance” function on a topological space X satisfying four rules: for x, y, and z in X, the distance from x to itself is zero; the distance from x to y is positive if x and y are different; the distance from x to y is the same as the distance from y to x ; and the distance from x to y is less than or equal to the distance from x to z plus the distance from z to y (triangle inequality).

metric

metric

Measurement. Although metric generally refers to a system of weights and measures, software engineers often use the term as simply "measurement." For example, "is there a metric for this process?" See software metrics.
References in periodicals archive ?
Companies must integrate CX metrics into those business discussions.
Selecting the most appropriate metrics to measure is a major challenge in implementing a performance management program.
There are numerous software quality models and metrics that can be incorporated into SLAs.
The exploration initially demonstrates that although two outcomes/objectives sets are written very differently, LSA can provide a reliable metric measurement of relatedness of the sets.
Epidemiology can provide aggregate metrics -- metrics that start with the health status of an individual and are aggregated.
In 1975, Gerald Ford signed the Metric Conversion Act, which established the United States Metric Board, a panel that would oversee the country's transition to the metric system.
The volume-related metrics include such items as the number of monthly expense reports we process, the invoices we pay and the payroll checks we issue.
But make no mistake, we are going metric - and fairly soon.
And converting all our products and labels to metric would not come cheaply, Leslie adds.
During month of March, about 45,745 metric tons of basmati rice worth US$ 43.
Similarly, the department has procured 234822 metric ton wheat so far across the division, including 73403 ton from Multan, 34539 ton from Lodhran, 61984 ton from Vehari and 64895 metric ton wheat from Khanewal district so far, the sources added.