: constant, unchanging specifically : unchanged by specified mathematical or physical operations or transformations invariant factor. Other Words from invariant Synonyms & Antonyms More Example Sentences Learn More About invariant.
What is the meaning of invariant in physics?
In theoretical physics, an invariant is an observable of a physical system which remains unchanged under some transformation . ... Invariance is an important concept in modern theoretical physics, and many theories are expressed in terms of their symmetries and invariants.
What is another word for invariant?
In this page you can discover 26 synonyms, antonyms, idiomatic expressions, and related words for invariant, like: changeless , constant, regular, unchanging, unvarying, equable, invariable, same, uniform, orthogonal and polynomial.
What does invariant order mean?
Order invariance merely means that you get the same result regardless of the order of the components . The term has different uses in different contexts.
What is invariance psychology?
n. 1. in the theory of ecological perception, any property of an object that remains constant despite changes in the point of observation or surrounding conditions . 2. the property of being unchanged by a transformation.
Is wavering an antonym for invariable?
| variable changeable | unfixed unlike | unsteady varied | wavering adjustable | adaptable modifiable |
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Is invariant to?
In mathematics, an invariant is a property of a mathematical object (or a class of mathematical objects) which remains unchanged after operations or transformations of a certain type are applied to the objects.
Why is invariant important?
An invariant is a property of your data that you expect to always hold. Invariants are important because they allow you to separate business logic from validation —your functions can safely assume that they’re not receiving invalid data.
Is time invariant proper?
Proper time is invariant by definition. Proper time is the time elapsed in a frame where an object (or event) is at rest .
Are charges invariant?
The origin of charge invariance, and all relativistic invariants, is presently unclear . ... It is possible the concept of charge invariance may provide a key to unlocking the mystery of unification in physics – the single theory of gravity, electromagnetism, the strong, and weak nuclear forces.
What is the meaning of time invariant?
A time-invariant (TIV) system has a time-dependent system function that is not a direct function of time . ... In the language of signal processing, this property can be satisfied if the transfer function of the system is not a direct function of time except as expressed by the input and output.
How do you prove a set is invariant?
Definition A set M ⊆ Ω is invariant under φ if it contains the complete orbit of every point of M . In other words, for every x ∈ M and every t ∈ R, φ(t, x) ∈ M. Definition A set M ⊆ Ω is positively invariant under φ if it contains the positive semiorbit of every point of M.
What does invariant mean in statistics?
Any object, function, or statistic that doesn’t change when scales are multiplied by a common factor is scale invariant. In statistics, it can also mean a statistic that tends not to change (i.e. 99% of the time, it will stay the same). Some specific statistics are scale invariant.
What does factorial invariance mean?
Factorial invariance is a concept applied in the context of psychometric analysis of questionnaires . The concept postulates that the psychometric properties of a questionnaire, used either by multiple groups or by the same group over time, have to be identical to ensure an unbiased comparison of factor means.
What is an invariance test?
Measurement invariance is a statistical property of an instrument (e.g., a test or questionnaire) indicating that it measures the same construct(s) in the same way across subgroups of respondents.
What does scalar invariance mean?
Scalar invariance means that mean differences in the latent construct capture all mean differences in the shared variance of the items . Scalar invariance is tested by constraining the item intercepts to be equivalent in the two groups. The constraints applied in the metric invariance model are retained.
