附楼上的测试代码:
\documentclass{article}
\newcommand\test{x_2+x_2^2+x^2+\sqrt{x^2}}
\begin{document}
default: $\test$ \[\test\]
default value:
\the\fontdimen13\textfont2,
\the\fontdimen14\textfont2,
\the\fontdimen15\textfont2,
\the\fontdimen16\textfont2,
\the\fontdimen17\textfont2
%set new value
\fontdimen13\textfont2=25pt
\fontdimen14\textfont2=15pt
\fontdimen15\textfont2=10pt
\fontdimen16\textfont2=10pt
\fontdimen17\textfont2=15pt
new: $\test$ \[\test\]
\end{document} |