答案1
答案2
在我看来,\widebar
借用一下mathabx
,看起来比以下更好\overline
:
\documentclass[11pt,a4paper]{article}
\DeclareFontFamily{U}{mathx}{\hyphenchar\font45}
\DeclareFontShape{U}{mathx}{m}{n}{
<-6> mathx5 <6-7> mathx6 <7-8> mathx7
<8-9> mathx8 <9-10> mathx9
<10-12> mathx10 <12-> mathx12
}{}
\DeclareSymbolFont{mathx}{U}{mathx}{m}{n}
\DeclareFontSubstitution{U}{mathx}{m}{n}
\DeclareMathAccent{\widebar}{0}{mathx}{"73}
\begin{document}
\[ z_1^p \widebar{z}_1^{\mkern1.5mu q} \]%
\end{document}