parametricní

Parametricní is an adjective used in technical contexts to describe concepts, models, or equations that depend on one or more parameters. It is a loanword in several languages for the English term parametric and is common in fields such as mathematics, statistics, engineering and computer science. The emphasis is on the role of parameters that determine structure, behavior or form.

In mathematics, a parametric description expresses coordinates or quantities as functions of a parameter. For example, a plane curve can be given by x(t) and y(t). As t varies, the point (x(t), y(t)) traces the curve. The circle of radius r is given by x(t) = r cos t, y(t) = r sin t, for t in [0, 2π). Parametric representations are especially useful when the relation is easier to describe via a parameter than as an explicit equation.

In statistics, parametric methods assume that data are generated from a distribution characterized by a finite set of parameters, such as the mean and variance of a normal distribution. Estimation, hypothesis testing and confidence intervals often rely on these assumptions. Nonparametric methods make fewer or no fixed assumptions about the form of the distribution.

In engineering and computer-aided design, parametric modeling defines geometry through parameters and constraints. A model's dimensions, such as length, width, radius, or slot positions, are adjustable, and changing a parameter updates related features automatically. This approach supports design exploration and quick iteration.

In programming, parametric ideas appear in areas such as parametric polymorphism (generics) and parameterized algorithms, where code behavior can be generalized over types or inputs without committing to concrete values.