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Use this for questions relating to the proper use of physics terminology or nomenclature.

2 votes

Second order effects of something

That terminology arises in the following situation: we want to compute some quantity $f(x)$ that depends on some parameter $x$. …
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3 votes

What is meant by a vector representation?

A similar thing happens in mathematics as well. Although $V\otimes \cdots \otimes V \otimes V^* \otimes \cdots \otimes V^*$ is a vector space, in many contexts its elements are not called vectors but …
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