Variablene

Variablene, the definite plural form of variabel in Norwegian and Danish, refer to the quantities that may take different values within a system, model, or data set. The concept is central to many disciplines, including mathematics, natural and social sciences, and computer science, where models describe how quantities change under different conditions.

In mathematics and science, a variable denotes a quantity that can vary. Variables may be independent, whose values are chosen or controlled, or dependent, whose values are observed as a result. Other types include controlled variables kept fixed and parameters that define a model. In statistics, variables can be numerical (quantitative) or categorical (qualitative) and may be discrete or continuous. In probability theory, random variables map outcomes to numbers and possess probability distributions that describe their behavior.

In computing, a variable is a storage location with an associated value that can change during program execution. Variables have types, may be mutable or immutable, and are governed by scope and lifetime rules that determine where they can be read or written.

The term appears widely in educational materials in Norwegian- and Danish-speaking contexts, appearing in textbooks, lectures, and documentation. By providing a common language for changing quantities, variablene connect mathematical reasoning, empirical study, and programming, and facilitate precise description of experiments, data, and algorithms.