答案1
这是一个愚蠢的解决方案;更智能的解决方案会自动调整标签,但现在需要太多时间。
\documentclass{article}
\usepackage{tikz}
\newcommand\jumpheight{0.2} % half of distance between horizonal lines [cm]
\newcommand\jumpwidth{0.1} % horizontal distance of skewed line [cm]
\newcommand\jumplength{0.8} % total width of graphical part [cm]
\newcommand\jump[4]%
{\begin{tikzpicture}[baseline={(0,-0.1)}]
\draw (0,0)
-- (\jumpwidth, \jumpheight)
-- node[above]{\scriptsize$\scriptstyle#1$}
(\jumplength,\jumpheight) node[right]{$#2$};
\draw (0,0)
-- (\jumpwidth, -\jumpheight)
-- node[below]{\scriptsize$\scriptstyle#3$}
(\jumplength,-\jumpheight) node[right]{$#4$};
\end{tikzpicture}%
}
\begin{document}
\newcommand\dd{\mathrm{d}}
\[ = \mu\dd t + \jump{\lambda\dd t}{k-1,}{1-\lambda\dd t}{0.}
\]
\end{document}