CDeltaKm

CDeltaKm is a term commonly used in software development and data analysis to denote a change in distance measured in kilometers. It is not part of a formal scientific notation, but rather a conventional variable name that appears in codebases, data schemas, and documentation. The prefix C and camel-case style often indicate a class member or a field in languages such as C++, C#, or Java.

In practice, CDeltaKm represents the difference between two distance values expressed in kilometers, or the rate of change of distance over time. As such, it is typically stored as a numeric type (for example, float or double) and may be positive or negative depending on the direction of movement or sign convention.

Computationally, CDeltaKm can be derived from successive position measurements. For geographic data, distances are frequently computed with the haversine formula or great-circle distance. CDeltaKm may then be defined as distance(current position) minus distance(previous position), or as the distance traveled between successive samples.

Applications include GPS tracking, route planning, fleet management, and time-series analysis of movement. The term is one of many ways to label a delta in kilometers within a dataset, and its exact meaning can vary by project or codebase. See also Delta, Kilometre, Haversine formula, GPS.