How do you denote the order of a square matrix, assuming it wasn't provided beforehand? For example, if I wanted to state something like,
$$order(A) = n \rightarrow |A| > 2^n$$
what would be the correct replacement for "$order(A)$"?
2026-03-27 03:39:11.1774582751
Standard notation for order of a square matrix
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Some authors, especially those in applied linear algebra, use MATLAB notation for notational conventions. For instance, I have seen use authors use $1:n$ instead of $\{1,\dots,n\}$.
Thus, in your situation, it might be good to use $\text{size}(A)=n$ to indicate that $A$ is an $n$-by-$n$ matrix (from the MATLAB function 'size').