latex - 如何在双列 latex 中的括号方程中拟合很长的线

Question

我有一张双栏纸，我想用以下代码在括号等式中放入长文本:

\begin{equation}
\small
M =\begin{cases*}
    1, & some text is in here some text is in here some text is in here some text is in here some text is in here some text is in here \\
    0, & otherwise\\
    \end{cases*}
\end{equation}

案例一的文本越过该列。我想在列宽的多行中适合案例一的所有文本。

Answer 1

您可以添加 \parbox文本周围合适的宽度:

\documentclass[twocolumn]{article}

\usepackage{mathtools}
\usepackage{lipsum}

\begin{document}

\lipsum[2]

{
\small
\begin{equation}
M =\begin{cases*}
    1, & \parbox[t]{5.5cm}{some text is in here some text is in here some text is in here some text is in here some text is in here some text is in here} \\
    0, & otherwise\\
    \end{cases*}
\end{equation}}

\lipsum[2]


\end{document}

(请注意，最好在 equation 环境之外更改字体大小)