答案1
通过该book
课程,您可以将其用作起点:
\documentclass{book}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[portuges]{babel}
\makeatletter
\def\@makechapterhead#1{%
\vspace*{50\p@}%
{\parindent \z@ \raggedright \normalfont
\ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\par\centering % <-- added
\sffamily\huge \MakeUppercase{\@chapapp}\space \thechapter % <-- changed
\par\nobreak
\vskip 60\p@ % <-- changed
\fi
\fi
\interlinepenalty\@M
\hrule\bigskip % <-- added
\huge #1\par\nobreak
\bigskip % <-- added
\hrule\par\nobreak % <-- added
\vskip 40\p@
}}
\makeatother
\begin{document}
\chapter{Progressões Artiméticas}
São comuns, na vida real, grandezas que sofrem aumentos iguais em
intervalos de tempos iguais. Por exemplo, \ldots
\end{document}