数学宏包
\usepackage{amsmath,amssymb,amsfonts,amsbsy}
页边距
\usepackage{geometry}
\geometry{left=2.95cm,right=2.95cm,top=3.6cm,bottom=3.6cm}
数学理论
\newtheorem{definition}{Definition}[section]
\newtheorem{theorem}{Theorem}[section]
\newtheorem{example}{Example}[section]
\newtheorem{remark}{Remark}[section]
\numberwithin{equation}{section} %公式按照章节编号
自定义新命令
\newcommand{\bu}[1]{\textbf{\underline{#1}}}
原文:https://www.cnblogs.com/qinghev/p/10613428.html