$\LaTeX$ User Guide

We welcome $\LaTeX$ experts to use our software!

We provide the ability to export $\LaTeX$ source code and to import $\LaTeX$ code blocks; see Magic Paste for details.

So why not just use $\LaTeX$? The answer is that using Liii STEM can greatly speed up your $\LaTeX$ writing! In this guide, we will explain how Liii STEM achieves this.

Liii STEM provides a WYSIWYG editing interface, along with intuitive keyboard shortcuts, Magic Paste, and formula conversion features. Let's take a quick look.

Magic Paste

If you have never used Mogan or TeXmacs before, the easiest feature to get started with and immediately speed up your writing is Magic Paste. You only need to use Ctrl+C and Ctrl+V (or Cmd+C and Cmd+V on Mac).

Through Magic Paste, users can directly paste content from Large Language Models (LLMs) or $\LaTeX$ source code into Liii STEM. For example, Liii STEM supports copying and pasting content from LLMs while maintaining the formatting of formulas and tables. The following example shows the effect of Magic Paste from GPT-4:

Currently, Magic Paste supports DeepSeek, ChatGPT, Zhihu, and Doubao. We also support VLM, allowing you to even paste your handwritten content into Liii STEM!

For more details on Magic Paste, see Magic Paste.

Automatic Typesetting with Large Models!

In addition to pasting content from external large models, Liii STEM can also use large models for automatic typesetting within the software. We even support interacting with large models directly using our rendered text, including mathematics and code. Even more magically, the output of the large models is also rendered in Liii STEM format!

For more details on large model integration, see Large Model Integration Installation Guide and Large Model Integration Usage Guide.

Built-in Environments

In $\LaTeX$, creating a theorem environment requires defining it in the preamble:

\documentclass{article}
\newtheorem{theorem}{Theorem}
\begin{document}

    \begin{theorem}
    Theorem here!
    \end{theorem}

\end{document}

However, in Liii STEM, most $\LaTeX$ environments are built-in. Users can directly insert the required environment through the provided graphical user interface.

Liii STEM supports various types of environments including:

• Theorem environments: See Enunciation Guide for theorems, lemmas, corollaries, and more
• Document structure: Learn about sections, chapters, and headers
• Tables: Create professional tables with our Table Guide
• Figures: Insert and manage images using our Figure Guide
• Citations: Handle references efficiently with our Citation Guide

Furthermore, for environments that are difficult to edit in $\LaTeX$, Liii STEM provides an extremely user-friendly GUI. For example, aligning multi-line equations. Inputting in $\LaTeX$:

\begin{align}
  f (x) \leq & \| g (x) - h (x) \| \\
  \leq & \| g (x) - z (x) \| + \| z (x) - h (x) \| \\
\end{align}

Compare this to inputting in Liii STEM:

For comprehensive equation editing techniques, see our Equation Guide.

Intuitive Keyboard Shortcuts and Symbol Toggling

One of the most laborious parts of editing $\LaTeX$ documents is memorizing and typing mathematical symbols. For example, the code to input $(\alpha \neq \gamma) \rightarrow (\beta \geqslant \theta)$ in $\LaTeX$ is as follows:

$(\alpha \neq \gamma) \rightarrow (\beta \geqslant \theta)$

In Liii STEM, the above formula can be entered intuitively. For example, $\rightarrow$ can be achieved by typing - followed by >, and $\geq$ can be achieved by typing > followed by =. Liii STEM automatically converts these keystroke sequences into the corresponding symbols. Here are more examples:

• $\implies$: Type = followed by >.
• $\leqslant$: Type < followed by =.
• $\Leftrightarrow$: Type < followed by = then >.
• $\infty$: Type @ followed by @.
• $\mathbb{R}$: Type R followed by R.

Liii STEM also supports a feature called symbol toggling. In Liii STEM's math mode, each symbol entered by the user represents not just a single symbol, but a group of related symbols. Users can switch between these symbols by pressing the Tab key. For example, $\alpha$ can be generated by typing A and then pressing Tab. Here are some examples:

• $\geq$: Type > followed by = then press Tab.
• $\leq$: Type < followed by = then press Tab.
• $\beta$: Type B then press Tab.
• $\theta$: Type J then press Tab.
• $\Theta$: Type uppercase J then press Tab.
• $\phi$: Type F then press Tab.
• $\Phi$: Type uppercase F then press Tab.

As shown in the figure below, Liii STEM provides hints for most mathematical shortcuts, helping users remember shortcuts they might forget.

For the complete list of keyboard shortcuts and advanced techniques, you can read Liii STEM Keyboard Shortcuts. We also provide Structured Search and Replace functionality for efficient text manipulation.

Getting Started

Ready to explore Liii STEM? Check out our installation guides:

• macOS Installation
• Windows Installation

Or dive deeper into specific features with our comprehensive guides above!