Metric

Metric or metrical may refer to:

Mathematics

In mathematics, metric may refer to one of two related, but distinct concepts:

A function which measures distance between two points in a metric space
A metric tensor, in differential geometry, which allows defining lengths of curves, angles, and distances in a manifold

Metric tensor (general relativity), the fundamental object of study in general relativity similar to the gravitational field in Newtonian physics
Senses related to measurement:
- Metric system, an internationally adopted decimal system of measurement
- Metric units, units related to a metric system
- International System of Units, or Système International (SI), the most widely used metric system
METRIC, a model that uses Landsat satellite data to compute and map evapotranspiration (ET) in climatology/meteorology

The word metric is often used to mean a descriptive statistic, indicator, or figure of merit used to describe or measure something quantitatively, including:

Metrics (networking), set of properties of a communication path used by a router to make routing decisions
Software metric, a measure of some property of a piece of software or its specifications
Reuse metrics, a quantitative indicator of an attribute for software reuse and reusability
Performance indicator, often called a "metric", a measure of an organization's activities and performance
Search engine optimization metrics, a numeric value which describes a website's organic search potential