I want to represent, say, the closure of a set or the extended reals, e.g., $\bar{\mathbb{R}}$
but unfortunately this creates a bar that is much too small (horizontally) and can barely be seen. On the other hand, $\overline{\mathbb{R}}$
creates a line that is too long. I need something that's just right, in between the bar and the overline. What would be my best choice?
[Tex/LaTex] The \bar and \overline commands
stacking-symbols
Best Answer
Here is a command
\xoverline[width percent]{symb}
that will do it. Note that it will not scale inside sub or superscripts. If you need that, everthing has to go through a\mathchoice
resulting in a lot more complex code.