有没有办法在等式上方显示长等式的数字（如果缺少位置，则通常会出现在其下方）？
也就是说，如果你编译下面的代码，结果将如下所示
...如下列等式所示
长方程输出
[space space below it]（等式数）
我希望 TeX 显示
...如下列等式所示
[space space above eq.]（等式数）长方程输出
\documentclass[11pt]{article}
\pagestyle{empty}
\usepackage{amsmath}
\begin{document}
...as the following equation shows
\begin{align}
blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah
\end{align}
\end{document}
答案1
\raisetag包中的命令可能amsmath有助于将标签定位在方程式上方而不是下方。根据align环境的实际内容，长度可能需要进行相应调整。
\documentclass[11pt]{article}
\pagestyle{empty}
\usepackage{amsmath}
\begin{document}
...as the following equation shows
\begin{align}
blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah
\raisetag{2\normalbaselineskip}
\end{align}
\end{document}