# Universal symbol for “represents”? [closed]

Is there a universal symbol for a representation as in: A is a representation of B?

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What do you mean by "representation"? What are $A$ and $B$? – Qiaochu Yuan Aug 22 '12 at 4:25
What does representation mean? There is actually something called a group representation.. – William Aug 22 '12 at 4:25
Before we downvote, new user here. Let's explain it to him. Welcome to math.SE: since you are new, I wanted to let you know a few things about the site. Titles should be informative. In order to get the best possible answers, it is helpful if you say in what context you encountered the problem, and what your thoughts on it are; this will prevent people from telling you things you already know, and help them give their answers at the right level. – user2468 Aug 22 '12 at 4:26
@JenniferDylan Gnub may be female ... – William Aug 22 '12 at 4:31
The mathematical-physics tag makes me wonder if there is a concrete example in OP mind. – user2468 Aug 22 '12 at 4:55
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## closed as not a real question by Chris Eagle, Belgi, Henry T. Horton, TMM, rschwiebDec 31 '12 at 17:58

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

## 1 Answer

something like

$A := B$

or

$A \triangleq B$

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 No and no: neither of those two symbols is a universal one of representation, whatever this last may mean in the OP's mind. – DonAntonio Aug 22 '12 at 4:33 Both usually mean: define $A$ to be $B$. – user2468 Aug 22 '12 at 4:38 I mean, just simple stuff like to represent a matrix A, you can write A_{ij} or something – gnub Aug 22 '12 at 4:38 @gnub: You are probably going to get more helpful answers if you ask a less abstract question. What exactly are you trying to represent? – none Aug 22 '12 at 4:44 @gnub You can write out in words, "A represents B", "A denotes B", or "Define A to be B". Use some words! Many new students in mathematics, especially Calculus, feel that their problem sets can only contain variables, equality, inequality, and implications and other symbols. They feel that words in a proof is some sort of impurity. Words are much clearer. Even research papers in math are filled with real sentences. – William Aug 22 '12 at 4:49
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