答案1
我不确定这种一般图表会是什么样子,但这种特定图表可以用标准tikz
命令绘制。您可以xscale
根据yscale
需要进行调整。
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{equation}
\cdots
\begin{tikzpicture}[xscale=.8, yscale=.5, nodes={execute at begin node=$, execute at end node=$}]
\draw (-3,0)node[above]{I}--(3,0)node[above]{I};
\draw (-2,0)--(-2,1)node[above]{2j\!-\!1};
\draw (-1,0)--(-1,1)node[above]{2j};
\draw (1,0)--(1,1)node[above]{(2j)'};
\draw (2,0)--(2,1)node[above]{\quad(2j\!-\!1)'};
\node[above] at (0,0){c};
\end{tikzpicture}
\cdots.
\end{equation}
\end{document}