Stability
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The word stability has a number of technical meanings, all related to the common meaning of the word.
- In mechanics, stability characterizes the result of small perturbations to a system in mechanical equilibrium.
- In system analysis and signal processing, stability means either:
- BIBO (Bounded Input, Bounded Output) stability
- Lyapunov stability
- stability of a polynomial
- In control theory, stability characterizes the reaction of a dynamic system to external influences.
- In numerical analysis, stability refers to how well an algorithm performs with regard to error in the numerical results: see numerical stability.
- In everyday conversation about computers, stability is the tendency or otherwise of a system or program to crash.
- In Meteorology stability in the air relates to vertical movements of air parcels.
- On a boat it refers to the righting moment, and the resistance of the boat to capsize.
- In sociology, stability refers to social stability.
- In ecology, ecological stability can take on any connotaion in a continuum ranging from returning quickly to a previous state to simply not going extinct.
- In chemistry, stablility can refer to a chemical isotope in a stable form.
See also homeostasis.
The term 'stability' may be used in any of these contexts as an adjective: as a noun it also means a building designed for horses (see stable).
da:Stabilitet