答案1
这是一个非常简单的方法。
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{gather*}
\boxed{\text{difficult problem for an individual operator}} \\
\downarrow \\
\boxed{\text{simpler problem for a \(C^*\)-algebra}} \\
\downarrow \\
\boxed{\text{result for the \(C^*\)-algebra}} \\
\downarrow \\
\boxed{\text{desired result for the individual operator}}
\end{gather*}
\end{document}
但是,如果图表更复杂,其他工具(如 TikZ)会更合适。
答案2
您可以使用以下方式执行此操作Tikz
:
\documentclass[border=1cm]{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.misc,positioning}
\begin{document}
\begin{tikzpicture}[node distance=1cm,outer sep=0.5cm]
\node[rectangle,,draw=black](a) at (0,0) {difficult problem for an individual operator};
\node[rectangle,draw=black,below=of a] (b) {simpler problem for a C*-algebra};
\node[rectangle,draw=black,below=of b] (c) {result for the C*-algebra};
\node[rectangle,draw=black,below=of c] (d) {desired result for the operator};
\draw [->] (a) edge (b) (b) edge (c) (c) edge (d);
\end{tikzpicture}
\end{document}