我怎样才能在 Latex 中绘制这种双重图表？

Question

我怎样才能在 Latex 中绘制这个图表？

Answer 1

使用tikz-cd包：

\documentclass{article}
\usepackage{tikz-cd}
\begin{document}

\begin{tikzcd}
  G & B \arrow[l,"\psi"above]\arrow[d]\arrow[r,"g"] & C \\
  & B/f(A) \arrow[lu,"\psi'"] \arrow[ru,"g'"below,"\simeq"above] &
\end{tikzcd}

\end{document}