【LaTeX Tips】LaTeX 中公式编号括号样式及章节关联的方法

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\documentclass{article}
\usepackage{amsmath}
\numberwithin{equation}{section}
\begin{document}
\section{Test}
\begin{equation}
E = mc^2
\end{equation}
\end{document}

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\documentclass{article}
\makeatletter
\@addtoreset{equation}{section}
\makeatother
\renewcommand\theequation{\arabic{section}-\arabic{equation}}
\begin{document}
\section{Test}
\begin{equation}
E = mc^2
\end{equation}
\end{document}

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\newtagform{form-name}[Number-Style]{left}{right}
\usetagform{form-name}

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\documentclass{article}
\usepackage{amsmath}

\usepackage{mathtools}
\newtagform{test}[\textbf]{\textbf{\small Equation~}}{}
\usetagform{test}

\begin{document}

\section{Test}

\begin{equation}
E = mc^2
\end{equation}

\end{document}