covariance
[kō-ˈver-ē-ən(t)s]
nounfemininepl: covariâncias
covariância
1. A measure in statistics and probability theory that indicates the degree to which two variables change together
The covariance between height and weight is positive, showing they tend to increase together.
A covariância entre altura e peso é positiva, mostrando que tendem a aumentar juntas.
2. In mathematics and linear algebra, a property describing how vectors or tensors transform under coordinate changes
The covariance of the tensor ensures consistency across different reference frames.
A covariância do tensor garante consistência em diferentes sistemas de referência.
3. In programming and type theory, a property of generic types related to type substitution
Java uses covariance to allow a subclass to be used where a superclass is expected in return types.
Java usa covariância para permitir que uma subclasse seja usada onde uma superclasse é esperada em tipos de retorno.
Covariance is a fundamental concept in statistics and mathematics taught in universities across Brazil, Portugal, and English-speaking countries. The term is highly standardized in academic and technical contexts with minimal regional variation. It is primarily used in advanced mathematics, statistics, machine learning, and computer science fields.
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