没装对应的宏包
如果用的是CTeX套装,打开PackageManager搜索leftidx宏包并安装
fit (李亚鹏版令狐冲) 在 ta 的帖子中提到:\usepackage{leftidx}$\leftidx{_{id_j}^{date_k}}{P}{_i}$编译显示leftidx.stynotfound求指导,拜谢!
可以对比\documentclass{article}\usepackage{mathtools}\usepackage{leftidx}
\begin{document}
\[\prescript{date_k}{id_j}{P}_i\]
\[\leftidx{_{id_j}^{date_k}}{P}{_i}\]
\end{document}
fit (李亚鹏版令狐冲) 在 ta 的帖子中提到:\usepackage{leftidx}$\leftidx{_{id_j}^{date_k}}{P}{_i}$编译显示leftidx.stynotfound求指导,拜谢!