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basic-grammar

Basic Syntax​

Basic Structure of a LaTeX Document​

A complete LaTeX document is divided into three parts: document class declaration, preamble, and body.

  • Document class: defines the overall document type (article, report, book)
  • Preamble: before \begin{document}, where packages are loaded and global settings are configured
  • Body: between \begin{document} and \end{document}, containing all main content
  • % is the comment symbol; the rest of the line will not be compiled
\documentclass{article}
% Preamble: load packages
\usepackage{ctex}      % Chinese support package
\usepackage{amsmath}   % Math formula package

\begin{document}

Hello, LaTeX!

This is a minimal example document.

\end{document}

Hello, LaTeX!

This is a minimal example document.

Common document classes:

  1. article: short articles, conference papers
  2. report: course reports, theses, supports chapters
  3. book: book typesetting