In physics, an observable is a physical property or physical quantity that can be measured. In classical mechanics, an observable is a real-valued "function"...

The observable universe is a ball-shaped region of the universe consisting of all matter that can be observed from Earth or its space-based telescopes...

Observability is a measure of how well internal states of a system can be inferred from knowledge of its external outputs. In control theory, the observability...

{y}}(t)={\boldsymbol {Cx}}(t)+{\boldsymbol {Du}}(t)\end{array}}} is observable, where A {\displaystyle {\boldsymbol {A}}} , B {\displaystyle {\boldsymbol...

In software engineering, more specifically in distributed computing, observability is the ability to collect data about programs' execution, modules' internal...

partially observable system is one in which the entire state of the system is not fully visible to an external sensor. In a partially observable system the...

Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures...

In mathematics, in the representation theory of algebraic groups, an observable subgroup is an algebraic subgroup of a linear algebraic group whose every...

can only be inferred indirectly through a mathematical model from other observable variables that can be directly observed or measured. Such latent variable...

programming languages. ReactiveX is an API for asynchronous programming with observable streams. Asynchronous programming allows programmers to call functions...