Stationaar

Stationaar is a Dutch term that can be translated as "stationary" in English. The term is used across various contexts, including mathematics, physics, and everyday language, to describe something that remains fixed in place or exhibits no change over time.

In mathematics and statistics, "stationaar" (stationary) refers to a stochastic process whose statistical properties, such as mean and variance, are constant over time. Stationarity is a fundamental assumption in many time series analyses, ensuring that data points are comparable across different time periods, simplifying modeling and forecasting.

In physics and engineering, "stationaar" describes systems or conditions that are steady or unchanging. For example, a stationary object remains at rest, while a stationary flow refers to fluid movement at constant velocity without acceleration or turbulence.

In common usage, "stationaar" can describe anything that is stable, fixed, or not subject to change. For instance, a stationaar position might refer to a fixed point of operation or a non-moving location.

Overall, the term emphasizes stability and invariance in various scientific and practical contexts. Its precise meaning often depends on the discipline and specific application, but the core concept revolves around the idea of a lack of change or movement.