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LaTeX Complete Cheat Sheet for Formulas Writing

LaTeX Cheat Sheet

In engineering and academia, the importance of high-quality document preparation cannot be overstated. LaTeX, a typesetting system revered for its precision and flexibility, enhances the quality of technical documents, making it a preferred choice among scholars and professionals alike. According to a 2019 survey by Overleaf and ACM, over 80% of researchers in fields like computer science and mathematics rely on LaTeX for its superior handling of complex documents, particularly those with intricate mathematical content. This article offers a comprehensive LaTeX language complete cheat sheet and detailed examples dedicated to formulas writing.

Key Takeaways

Formulas
Creating precise formulas for effective product design and engineering solutions.
  • LaTeX separates content from layout effectively.
  • Structure includes preamble and body components.
  • Mathematical notation neatly integrates with text.
  • Figures and tables can be referenced easily.
  • other libraries like BibTeX simplifies citation management impressively.

Whether you’re crafting a thesis, a technical report, or a journal article, mastering LaTeX can significantly streamline your publication process and elevate your work in both academic and industry settings.

At its root, LaTeX is a high-level document preparation system and markup language, renowned for its ability to produce professionally typeset documents, especially those containing complex mathematical formulas and scientific notations. It was originally written by Leslie Lamport in the early 1980s as a user-friendly an enhancement of the TeX typesetting program, which was developed by Donald Knuth.

Introduction to LaTeX and Advantages over WYSIWYG Editors

Latex
Latex enhances product design and innovation in scientific documentation through superior formatting and citation management.

LaTeX, a typesetting system, offers numerous advantages that cater to complex document preparation, especially in scientific and technical fields. One of the primary benefits is its ability to handle intricate layout and formatting tasks seamlessly, which a typical WYSIWYG editor often struggles with. For instance, LaTeX’s robust handling of bibliographies, citations, and references makes it the go-to choice for professionals engaged in research, where accuracy and precision are paramount.

Another notable advantage is the superior output quality of documents created with LaTeX. The system follows typographic best practices, ensuring that the final document is not only aesthetically pleasing but also adheres to high publishing standards.

The version control capabilities of LaTeX further distinguish it from standard editors. Through text files, multiple authors can collaborate using software tools like Git, which track changes effectively. This feature resolves conflicts more efficiently than traditional editors, as only the text is modified without disrupting the formatting. For teams engaged in large-scale projects, this approach significantly enhances collaboration.

Finally, the flexibility of LaTeX allows users to create custom styles and commands, making it adaptable to a wide range of documentation needs. Whether it’s academic papers or business reports, users can define their formatting rules. This customization is something often unattainable with WYSIWYG editors.

Tip: utilize packages like TikZ for creating complex diagrams within your documents to enhance visual clarity while leveraging LaTeX’s capabilities (see our Bonus#2 below more more libraries).

Basic Document Structure in LaTeX

LaTeX documents begin with the declaration of the document class, which defines the overall layout and formatting. Commonly used classes include article, report, and book. This starts with the command documentclass{article}. A typical LaTeX document has a preamble that includes packages for enhanced functionality, such as usepackage{amsmath} for mathematics and usepackage{graphicx} for image handling. The structure follows with the begin{document} command, indicating where the content begins, ending with end{document}.

Tip: use the label{key} command right after the section command to create cross-references. This allows automatic numbering and accurate reference updates throughout the document, improving workflow efficiency. An example is creating labels for equations or sections which can then be referenced with ref{key}, ensuring consistency.

Tip: to achieve consistent formatting across large documents, it’s advised to utilize pre-defined styles or templates available in LaTeX.

Mathematical Expressions and Equation Formatting

LaTeX provides extensive capabilities for rendering mathematical expressions and equations, allowing users to format them with precision. The language supports two main environments for displaying math, “inline” and “display”:

  • “Inline math”, enclosed by $…$, when LaTex is used within a paragraph
  • “Display math”, enclosed by […], centers the equation on its own line for better visibility

For example, an inline expression such as $E = mc^2$ will rendered as \(E = mc^2\) where a display version [E = mc^2] will render as :
\(E = mc^2\)
where the latter is rendered more prominently.

 

Super Tip: you may encounter the notation $ $…$ $ (double $ on both sides) instead of […], despite the American Mathematical Society (AMS) discouraged it. 

IMPORTANT: for clarity, from now on, all the examples below will omit the “$…$” (inline mode) and “[…]” (display mode), to focus on the exact LaTeX feature.

Formatting of mathematical symbols is straightforward in LaTeX. Users can create fractions, roots, and subscripts with ease:

Format TypeCommand
Fractions\frac{a}{b} will render as: \(\frac{a}{b}\)
Square Roots\sqrt{x} will render as \(\sqrt{x}\)
Subscriptx_i will render as \(x_i\)

Within LaTeX, one can manipulate mathematical spacing and alignment. For instance, the commands , (thin space), : (medium space), and ; (thick space) allow for adjustments between operators or symbols. When presenting data, items can also be arranged in tables.

To enhance mathematical formatting, LaTeX supports environments for alignment. The “align” environment allows multiple equations to be aligned at the equal sign, a feature particularly beneficial in formal presentations. By incorporating tags such as begin{align}…end{align}, one can align equations neatly. Using LaTeX not only enhances the appearance of mathematical content but also maintains consistency across various documents.

The Complete LaTex Cheat Sheet for Formulas

 

FeatureExplanationCode Examples
reminder: except for the 2 first mode examples, all the examples below will omit “$…$” and “[…]”
Rendered Examples
Inline Math ModeUsed to write formulas that are part of a paragraph or running text. The text and the formula will be on the same line.The equation is $E=mc^2$.


Another example is $\(a^2 + b^2 = c^2\)$.

The equation is \(E=mc^2\).

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Frequently Asked Questions

What is LaTeX and what are its advantages over WYSIWYG editors?

LaTeX is a typesetting system commonly used for producing technical and scientific documents. Unlike WYSIWYG editors, LaTeX separates content from layout, allowing for precise control over document formatting.
 

What is the basic document structure of a LaTeX file?

A LaTeX document typically consists of a preamble and a document body. Common commands included in the preamble are documentclass for specifying the document type and usepackage for importing additional packages.
 

How do I format text in LaTeX?

Text formatting in LaTeX can be achieved using commands like textbf for bold, textit for italics, and underline for underlining text. Additionally, font sizes and styles can be customized using specific size commands such as small and large.
 

What are the methods for typesetting mathematical expressions in LaTeX?

Mathematical expressions can be included in LaTeX either inline or in display mode. Common symbols and structures, such as fractions, roots, sums, integrals, and matrices, have dedicated commands that enable users to format them
accurately. This cheat-sheet is dedicated to that.
 

How can I include figures and tables in a LaTeX document?

Figures and tables can be inserted using commands like “includegraphics” for images and the tabular environment for tables. It’s also possible to add captions and labels for cross-referencing throughout the document.
 

How does bibliography management work in LaTeX?

LaTeX uses BibTeX or similar tools for managing bibliographies and citations. Users can insert references easily using commands like cite and produce a formatted bibliography automatically at the end of the document.
 

What types of documents are commonly produced using LaTeX?

LaTeX can be used to produce various types of documents including journal articles, theses, dissertations, and conference papers and research publications. It is particularly effective for technical documentation that incorporates complex mathematical content or multilingual requirements.

 

Related Topics

      • Presentation Creation: using Beamer class for creating professional presentations and slideshows.
      • Handling Different Languages: using packages for multilingual typesetting and language-specific features.
      • Appendices and Glossaries: including additional information sections and glossaries in LaTeX documents.
      • Advanced Mathematical Formatting: utilizing advanced features for intricate mathematical notations and formatting.
      • Converting LaTeX to Other Formats: methods for exporting LaTeX documents to HTML, RTF, or other file types.
      • Integration with Version Control: using version control systems to manage revisions of LaTeX documents collaboratively.
      • Error Handling and Debugging: strategies for troubleshooting and fixing common errors encountered in LaTeX documents.
      • Creating High-Quality Graphics: generating and including complex graphics using TikZ or PGF packages.
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    Topics covered: LaTeX, typesetting, document preparation, mathematical notation, citation management, bibliographies, formatting, document class, packages, cross-referencing, inline math, display math, mathematical expressions, customization, collaboration, typographic standards, version control, and TikZ..

    1. Fabrice

      Learning curve is steep, but the outcome? Unparalleled. For simple docs, try Word. For mastery, LaTeX.

    2. Emersyn

      I reckon LaTeXs math formatting trumps WYSIWYG editors, but what about user-friendliness for non-tech folks? Can they catch up?

      1. Fabrice

        Sure, LaTeX is king for math. But WYSIWYG wins hands down for user-friendliness. No contest.

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