👉 In mathematics and physics, a "metric" is a function that assigns to each point in a space an absolute value called the metric. This metric defines how similar two points are in terms of distance between them. The metric can be used to define distances in spaces such as Euclidean, hyperbolic, or Lorentzian geometry. Metricization refers to the process of converting a set of data into a metric representation, which is a function that maps each point to its distance from the origin