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+---
+title: LaTeX2e
+category: LaTeX2e
+layout: 2017/sheet
+tags: [Featured]
+updated: 2023-06-27
+weight: -10
+intro: |
+ [Latex](https://www.latex-project.org/) is a high-quality typesetting system;
+  This reference was made for LaTeX2e
+---
+
+# LaTeX Cheat Sheet
+
+## Document Structure
+
+### Document Class
+- `\documentclass{}` - Specifies the type of document. Common document classes include:
+  - `article` - For articles in journals, short reports, and documentation.
+  - `report` - For longer reports, theses, and dissertations.
+  - `book` - For books.
+  - `letter` - For letters.
+  - `beamer` - For presentations.
+  
+### Packages
+- `\usepackage{}` - Loads additional packages for extended functionality. Packages add features such as including images, formatting tables, adding code listings, and more.
+
+### Document Structure
+- `\begin{document}` - Begins the document. All content should be placed after this command.
+- `\end{document}` - Ends the document. Nothing should be placed after this command.
+
+### Sections
+- `\section{}` - Creates a new section with a heading. Sections are numbered by default.
+- `\subsection{}` - Creates a new subsection within a section.
+- `\subsubsection{}` - Creates a new subsubsection within a subsection.
+
+### Table of Contents
+- `\tableofcontents` - Generates a table of contents based on the section headings in the document.
+
+## Formatting Text
+
+### Font Styles
+- `\textbf{}` - Formats text in bold.
+- `\textit{}` - Formats text in italics.
+- `\underline{}` - Underlines text.
+
+### Font Size
+Font sizes can be changed using commands such as:
+- `\tiny`
+- `\scriptsize`
+- `\footnotesize`
+- `\small`
+- `\normalsize`
+- `\large`
+- `\Large`
+- `\LARGE`
+- `\huge`
+- `\Huge`
+
+### Lists
+- `\begin{itemize}` - Begins a bulleted list.
+- `\item` - Adds an item to the bulleted list.
+- `\end{itemize}` - Ends the bulleted list.
+
+- `\begin{enumerate}` - Begins a numbered list.
+- `\item` - Adds an item to the numbered list.
+- `\end{enumerate}` - Ends the numbered list.
+
+## Mathematical Equations
+
+### Inline Math
+- `$ equation $` - Inserts an equation within the text using inline math mode. The equation is surrounded by `$` symbols.
+
+### Display Math
+- `\[ equation \]` - Displays an equation on its own line using display math mode. The equation is surrounded by `\[` and `\]` symbols.
+
+### Superscripts and Subscripts
+- `x^2` - Formats `x` as a superscript.
+- `x_1` - Formats `x` as a subscript.
+
+### Fractions
+- `\frac{numerator}{denominator}` - Creates a fraction with the specified numerator and denominator.
+
+### Greek Letters
+- Greek letters can be inserted using their respective LaTeX commands, such as:
+  - `\alpha` - Alpha
+  - `\beta` - Beta
+  - `\gamma` - Gamma
+  - ...
+
+### Sum and Integral
+- `\sum` - Inserts a summation symbol.
+- `\int` - Inserts an integral symbol.
+
+### Matrices
+- Various matrix environments are available:
+  - `\begin{matrix} ... \end{matrix}` - Basic matrix.
+  - `\begin{pmatrix} ... \end{pmatrix}` - Matrix enclosed in parentheses.
+  - `\begin{bmatrix} ... \end{bmatrix}` - Matrix enclosed in square brackets.
+  - `\begin{vmatrix} ... \end{vmatrix}` - Matrix enclosed in vertical bars.
+
+## Figures and Tables
+
+### Figures
+- `\begin{figure} ... \end{figure}` - Creates a figure environment for inserting images.
+- `\includegraphics[options]{image_file}` - Inserts an image with specified options.
+
+### Tables
+- `\begin{table} ... \end{table}` - Creates a table environment for creating tables.
+- `\begin{tabular}{columns} ... \end{tabular}` - Defines the table structure with the specified number of columns.
+- `&` - Separates table columns.
+- `\\` - Starts a new row in the table.
+
+## References and Citations
+
+### Labels and References
+- `\label{label_name}` - Defines a label for a section, equation, figure, or table. Labels are used to refer to specific sections, equations, figures, or tables.
+- `\ref{label_name}` - Refers to the labeled section, equation, figure, or table.
+
+### Bibliography and Citations
+- LaTeX supports bibliographies and citations using the BibTeX system. To include a bibliography and citations in your document:
+  - Define the bibliography style using `\bibliographystyle{style}`.
+  - Include the bibliography file using `\bibliography{bibfile}`.
+  - Cite references using `\cite{citation_key}`.
+
+## Miscellaneous
+
+### Comments
+- `% comment` - Inserts a comment. Comments are ignored by the LaTeX compiler and are useful for adding notes to your code.
+
+### Horizontal Line
+- `\hrule` - Inserts a horizontal line.
+
+### Page Break
+- `\newpage` - Starts a new page.
+
+### Special Characters
+- Certain characters have special meaning in LaTeX. To typeset these characters, you need to use the corresponding LaTeX command:
+  - `\$` - Dollar sign
+  - `\%` - Percent sign
+  - `\&` - Ampersand
+  - `\_` - Underscore
+  - `\{ \}` - Curly braces
+
+## Conclusion
+
+This cheat sheet provides a quick reference for LaTeX commands and syntax. For more detailed information, consult the official LaTeX documentation or visit the [LaTeX Documentation](https://www.latex-project.org/help/documentation/).