I've noticed that a vector arrow over the letter b is always very bad looking when b is followed by a closing parenthesis. It looks that this is a unavoidable uglyness... someone got some clue about how to avoid that? In the MWE you can see that in both () and \left( \right) the aesthetics is ruined no matter what...
\documentclass{article}
\begin{document}
$$
(\vec{b})\qquad\left(\vec{b}\right)
$$
\end{document}
In example: \((\vec{a}\cdot\vec{b})\) it is horrible! And if the letter is a "d" the result is worse.
\vec{b}\,)– egreg Sep 18 '22 at 15:0714ptoption, so this is 10pt, and$$should not be used in latex. I would use the first form, or possibly add a\,before)– David Carlisle Sep 18 '22 at 15:07