![缺失 } 错误](https://linux22.com/image/343463/%E7%BC%BA%E5%A4%B1%20%7D%20%E9%94%99%E8%AF%AF.png)
为什么这段代码不能编译?
\usepackage{tikz}
\begin{document}
We will let $P_2\textit{n}+1 = v_0v_1v_2…v_2\textit{n}$ be a path of
length $2\textit{n}+1$. We will plant an end vertex of a path $P_a$
of length \textit{a} to $v_4\textit{i}-3$ and an end vertex of a path
$P_\textit{a}+2$ of length $\textit{a}+2$ to $v_4\textit{i}-1$ for
$\textit{i}$ = $1,2,…,\textit{n}$.
\end{document}
答案1
答案2
这个很好用:
\documentclass{article}
\begin{document}
We will let $P_2 n+1 = v_0v_1v_2…v_2 n$ be a path of
length $2n+1$. We will plant an end vertex of a path $P_a$
of length $a$ to $v_4i-3$ and an end vertex of a path
$P_a+2$ of length $a+2$ to $v_4i-1$ for
$i$ = $1,2,\ldots,n$.
\end{document}
通过在数学方程式中放置$..$
将采用斜体模式。所以你不需要\textit{}