答案1
尝试这个:
\documentclass{article}
\begin{document}
\noindent
The underscore character shape is set by the font designer: $Hu\_(x,\theta)$
\medskip\noindent
But you can draw your own rules: $Hu \hbox to 3em{\thinspace\hrulefill\thinspace}(x,\theta)$
\medskip\noindent
Possibly you want it like this: $\hbox to 4em{Hu\thinspace\hrulefill\thinspace}(x,\theta)$
\end{document}
笔记
- 抱歉,我使用了纯 TeX——
\hbox
您可以使用 LaTeX 做同样的事情\makebox
,但我永远记不住语法。