Examples of "observable"
ambiguity that persists between observable and non-observable terms.
The entropy of an observable is associated with the complete projective measurement of an observable,
The antisymmetrizer commutes with any observable formula_22 (Hermitian operator corresponding to a physical—observable—quantity)
A relevant observable is needed to describe the macroscopic behaviour of the system; an irrelevant observable is not. Marginal observables
observable is said to be a relevant observable; in the second, irrelevant and in the third, marginal.
An operator S has been associated with an observable quantity, the angular momentum. The eigenvalues of the operator are the allowed observable values. This has been demonstrated for angular momentum, but it is in general true for any observable quantity.
This statement is also approximately true in the following sense: suppose that there exists some formula_73 such that formula_74 for some observable formula_12 and any observable formula_55 that is supported outside the set formula_22. Then there exists an observable formula_78 with support inside set formula_22 that approximates an observable formula_12, i.e. formula_81.
In matrix mechanics, the mathematical formulation of quantum mechanics, any pair of non-commuting self-adjoint operators representing observables are subject to similar uncertainty limits. An eigenstate of an observable represents the state of the wavefunction for a certain measurement value (the eigenvalue). For example, if a measurement of an observable is performed, then the system is in a particular eigenstate of that observable. However, the particular eigenstate of the observable need not be an eigenstate of another observable : If so, then it does not have a unique associated measurement for it, as the system is not in an eigenstate of that observable.
A generalization of this class of fully observable problems to partially observable problems lifts the complexity from EXPTIME-complete to 2-EXPTIME-complete.
In statistics, observable variable or observable quantity (also manifest variables), as opposed to "latent variable", is a variable that can be observed and directly measured.
Partially observable is a term used in a variety of mathematical settings, including that of Artificial Intelligence and Partially observable Markov decision processes.
It is a postulate of quantum mechanics that all measurements have an associated operator (called an observable operator, or just an observable), with the following properties:
From http://reactivex.io/intro.htmlIt is sometimes called “functional reactive programming” but this is a misnomer. ReactiveX may be functional, and it may be reactive, but “functional reactive programming” is a different animal. One main point of difference is that functional reactive programming operates on values that change "continuously" over time, while ReactiveX operates on "discrete" values that are emitted over time. (See Conal Elliott’s work for more-precise information on functional reactive programming).An operator is a function that takes one observable (the source) as its first argument and returns another Observable (the destination, or outer observable). Then for every item that the source observable emits, it will apply a function to that item, and then emit it on the destination Observable. It can even emit another Observable on the destination observable. This is called an inner observable.
The macroscopically observable momentum of condensate is :
`permutations are not observable', without necessarily introducing
regularly to check that the calculations tallied with observable
ranging over a countable set. Similarly, a "Y" valued observable,
boiling along particle’s trajectory. Then the trajectory becomes observable because
Therefore, this system is both controllable and observable.
The website of Transitoire Observable, grouping of numerical artists