i am covariant

Are you being intentionally ambiguous and vague? there are many types of covariants/covariances.

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Covariance is a measure of how much two variables change together, and may refer to:

Covariance matrix, a matrix of covariances between a number of variables
Cross-covariance, the covariance between two vectors of variables
Autocovariance, the covariance of a signal with a time-shifted version of itself
Covariance function, a function giving the covariance of a random field with itself at two locations
Covariant transformation, a rule that describes how certain physical entities change under a change of coordinate system
Covariance, meaning invariance of equations to changes (such as Lorentz transformations) of coordinate system (inaccurate but common usage in quantum mechanics)
Covariance and contravariance of vectors, properties of how vector coordinates change under a change of basis
Covariance and contravariance of functors, properties of functors
Covariance and contravariance (computer science), a system of class relations in computer science
General covariance, the invariance of the form of physical laws under arbitrary differential coordinate transformations
Lorentz covariance, a property of space-time that follows from the special theory of relativity
Poincaré covariance, related to Lorentz covariance
Eddy covariance, an atmospheric flux measurement technique
 
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