### Format Physical Quantities with siunitx

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Use the \qty command from the siunitx package for well-formatted physical quantities and units. Example shows formatting for speed and gravitational acceleration.

```latex
\qty{299792.458}{\km\per\s}
```

```latex
$g=\qty{9.801}{m.s^{-2}}$
```

--------------------------------

### Initialize Document Class

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Use the mpltx class to start your LaTeX document, accepting standard article and revtex4-2 parameters.

```latex
\documentclass[<options>]{mpltx}
```

--------------------------------

### Complete Report Example in LaTeX

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

A full example of a physics lab report using the mpltx document class. It demonstrates the structure, including title, abstract, sections, tables, figures, and bibliography.

```latex
\documentclass[font=notofandol]{mpltx}
\begin{document}

\title{迈克尔逊干涉仪测量光波波长}
\author{李华}
\emailphone{lihua@pku.edu.cn}{13800000000}
\affiliation{北京大学物理学院\quad 学号: 2100012345}
\date{\zhdate{2024/4/10}}

\begin{abstract}
  本实验使用迈克尔逊干涉仪测量了氦氖激光器的波长。
  通过调节可移动反射镜，观察干涉条纹的移动，
  测量得到波长为 $\lambda = \qty{632.5(8)}{\nm}$，
  与标准值 $\qty{632.8}{\nm}$ 符合良好。
  实验验证了光的波动性并掌握了精密长度测量方法。
\end{abstract}
\keywords{迈克尔逊干涉仪, 光波波长, 干涉条纹}

\maketitle

\section{引言}
迈克尔逊干涉仪是光学精密测量的重要仪器...

\section{实验原理}\label{sec:theory}
当两束相干光的光程差为波长整数倍时产生明条纹：
\begin{equation}\label{eq:interference}
  2d = m\lambda
\end{equation}
其中 $d$ 为镜面移动距离，$m$ 为条纹移动数目。

\section{实验装置}
\begin{figure}
  \centering
  \includegraphics[width=0.7\linewidth]{fig/instruments.png}
  \caption{迈克尔逊干涉仪光路示意图}
  \label{fig:setup}
\end{figure}

\section{结果与讨论}
\begin{table}
  \caption{波长测量数据}
  \label{tab:data}
  \begin{ruledtabular}
    \begin{tabular}{cd{2.4}d{3.0}}
      组号 & \mc{1}{c}{$d$/mm} & \mc{1}{c}{$m$} \\
      \colrule
      1 & 0.3164 & 1000 \\
      2 & 0.3162 & 1000 \\
      3 & 0.3167 & 1000 \\
    \end{tabular}
  \end{ruledtabular}
\end{table}

由\autoref{eq:interference}和\autoref{tab:data}计算得
$\lambda = \qty{632.5(8)}{\nm}$。

\section{结论}
实验成功测量了氦氖激光波长，结果与标准值一致。

\begin{acknowledgments}
  感谢王老师的实验指导。
\end{acknowledgments}

\bibliography{bibli}

\appendix
\section{思考题}\label{app:exercise}
\subsection{等倾干涉与等厚干涉的区别？}
答：...

\end{document}
```

--------------------------------

### Configure Font Options

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Examples of setting font options within the document class declaration.

```latex
\documentclass[font=windows]{mpltx}
```

```latex
\documentclass{mpltx}
```

--------------------------------

### Acknowledgments and Appendices

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Use dedicated environments for acknowledgments and appendices. \texttt{\\begin{acknowledgments}} is used for thanks, and \texttt{\\appendix} starts the appendix section where subsequent \texttt{\\section} commands are automatically letter-coded (A, B, C...).

```latex
\documentclass[font=default]{mpltx}
\begin{document}

% ... 正文内容 ...

\section{结论}
本实验成功测量了普朗克常数...

% 致谢环境
\begin{acknowledgments}
  感谢张老师在实验过程中的悉心指导，
  感谢李同学在数据处理方面提供的帮助。
\end{acknowledgments}

% 参考文献
\bibliography{bibli}

% 附录前另起一页
\clearpage
% 开始附录 - 之后的 \section 自动编号为 A, B, C...
\appendix

\section{思考题解答}\label{app:questions}

\subsection{为什么要在真空中进行实验？}
答：避免光电子与空气分子碰撞...

\section{原始数据记录}\label{app:data}

详细测量数据见\autoref{tab:raw_data}...

\end{document}
```

--------------------------------

### Bibliography Management with BibTeX

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Manage references using BibTeX. The MPLTX class presets the APS \texttt{apsrev4-2} format. Examples show citing single and multiple references.

```latex
% ===== 主文档 main.tex =====
\documentclass[font=default]{mpltx}
\begin{document}

% 引用参考文献
根据文献 \cite{einstein1905}，光电效应...
实验方法参考了教材 \cite{jindaishiyan} 第 3 章。
多篇文献可连续引用 \cite{planck1901,millikan1916}。

% 在文档末尾生成参考文献列表
% 参数为 .bib 文件名 (不含扩展名)
\bibliography{bibli}

\end{document}

% ===== 参考文献数据库 bibli.bib =====
@book{jindaishiyan,
  author    = {吴思诚 and 荀坤},
  title     = {近代物理实验},
  edition   = {4},
  publisher = {高等教育出版社},
  address   = {北京},
  year      = {2015}
}

@article{PhysRevLett.116.061102,
  title     = {Observation of Gravitational Waves from a Binary Black Hole Merger},
  author    = {Abbott, B. P. and others},
  journal   = {Phys. Rev. Lett.},
  volume    = {116},
  pages     = {061102},
  year      = {2016},
  doi       = {10.1103/PhysRevLett.116.061102}
}
```

--------------------------------

### Physics Package Support (Optional)

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Enabling the 'physics' option provides convenient commands for physical symbols and calculus. Note: \qty is renamed to \qtyp to avoid conflicts.

```latex
\documentclass[font=default,physics]{mpltx}
\begin{document}

% 导数符号
\begin{equation}
  \dv{f}{x}, \quad \dv[2]{f}{x}, \quad \pdv{f}{x}{y}
\end{equation}

% 自动调整大小的括号 (使用 \qtyp 而非 \qty)
\begin{equation}
  \qtyp(\frac{a}{b}), \quad \qtyp[\frac{a}{b}], \quad \qtyp{\frac{a}{b}}
\end{equation}

% 狄拉克符号
\begin{equation}
  \bra{\psi}, \quad \ket{\phi}, \quad \braket{\psi}{\phi}, \quad \expval{H}{\psi}
\end{equation}

% 矢量微分算符
\begin{equation}
  \grad{f}, \quad \div{\vb{F}}, \quad \curl{\vb{F}}, \quad \laplacian{f}
\end{equation}

\end{document}
```

--------------------------------

### Basic Document Class Invocation

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Use \documentclass{mpltx} for basic usage. Options like font, quanjiao, and physics can be included for specific configurations.

```latex
\documentclass{mpltx}
```

```latex
% 指定字体选项 (Windows 用户)
\documentclass[font=windows]{mpltx}
```

```latex
% 指定字体选项 (macOS 用户)
\documentclass[font=macos]{mpltx}
```

```latex
% 使用 Noto + Fandol 字体组合 (跨平台推荐)
\documentclass[font=notofandol]{mpltx}
```

```latex
% 启用全角句号映射 (将 "." 自动替换为 ".")
\documentclass[quanjiao]{mpltx}
```

```latex
% 启用 physics 宏包支持
\documentclass[physics]{mpltx}
```

```latex
% 组合多个选项
\documentclass[font=notofandol,quanjiao,physics]{mpltx}
```

--------------------------------

### Physics Package Support (Optional)

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Enabling the `physics` option allows the use of convenient commands for physical symbols and calculus typesetting. Note: `\qty` is renamed to `\qtyp` to avoid conflicts with siunitx.

```APIDOC
## Physics Package Support (Optional)

Enabling the `physics` option allows the use of convenient physical symbol and calculus typesetting commands. Note: `\qty` is renamed to `\qtyp` to avoid conflicts with siunitx.

### Derivative Symbols
```latex
\begin{equation}
  \dv{f}{x}, \quad \dv[2]{f}{x}, \quad \pdv{f}{x}{y}
\end{equation}
```

### Auto-Sized Brackets (using `\qtyp` instead of `\qty`)
```latex
\begin{equation}
  \qtyp(\frac{a}{b}), \quad \qtyp[\frac{a}{b}], \quad \qtyp{\frac{a}{b}}
\end{equation}
```

### Dirac Notation
```latex
\begin{equation}
  \bra{\psi}, \quad \ket{\phi}, \quad \braket{\psi}{\phi}, \quad \expval{H}{\psi}
\end{equation}
```

### Vector Differential Operators
```latex
\begin{equation}
  \grad{f}, \quad \div{\vb{F}}, \quad \curl{\vb{F}}, \quad \laplacian{f}
\end{equation}
```
```

--------------------------------

### Physics Package Command Renaming

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Demonstrates how the \qty command from the physics package is renamed to \qtyp to avoid conflicts with siunitx. This is done during the import of the physics package.

```latex
\qtyp()
```

--------------------------------

### SI Unit Support with siunitx

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

The template preloads the siunitx package for standardized typesetting of physical quantities and units. Use \qty{value}{unit}, \unit{unit}, and \num{value}.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

% \qty{数值}{单位} - 排版带单位的物理量
光速 $c = \qty{299792458}{m/s}$

% 科学计数法
电子电量 $e = \qty{1.602e-19}{C}$

% 复合单位
重力加速度 $g = \qty{9.801}{m.s^{-2}}$

% 使用预定义单位宏
波长 $\lambda = \qty{632.8}{\nm}$
功率 $P = \qty{100}{\kW}$
温度 $T = \qty{300}{\K}$

% \unit{} - 单独排版单位
测量精度为 \unit{mm} 量级

% \num{} - 排版数值
测量次数 $n = \num{10000}$

% 不确定度表示
$h = \qty{6.626(15)e-34}{\J\s}$

\end{document}
```

--------------------------------

### Compile Documents with XeLaTeX and latexmk

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Documents must be saved with UTF-8 encoding. Manual compilation involves multiple \texttt{xelatex} and \texttt{bibtex} runs. \texttt{latexmk} is recommended for automated compilation, with options for continuous compilation and cleanup.

```bash
# 源文件必须使用 UTF-8 编码保存

# 方法一: 手动编译 (以 template.tex 为例)
# 第一次编译 - 生成基本文档和辅助文件
xelatex template

# 处理参考文献
bibtex template

# 第二次编译 - 将参考文献写入文档
xelatex template

# 第三次编译 - 更新所有交叉引用
xelatex template

# 方法二: 使用 latexmk 自动化编译 (推荐)
latexmk -xelatex template.tex

# 方法三: 持续编译模式 (适合写作时预览)
latexmk -xelatex -pvc template.tex

# 清理辅助文件
latexmk -c template.tex
```

--------------------------------

### Physics Package Derivative Command

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Shows the usage of the \dv command from the physics package for denoting derivatives. Requires the physics package to be loaded.

```latex
\dv{f}{x}
```

--------------------------------

### International System of Units (siunitx) Support

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

The template preloads the `siunitx` package for standardized typesetting of physical quantities, including values and units.

```APIDOC
## International System of Units Support (siunitx)

The template preloads the `siunitx` package, for standardized typesetting of physical quantities' values and units.

### Usage Examples
* `\qty{value}{unit}` - Typesets a physical quantity with its unit.
  Speed of light $c = \qty{299792458}{m/s}$

* Scientific Notation
  Elementary charge $e = \qty{1.602e-19}{C}$

* Compound Units
  Gravitational acceleration $g = \qty{9.801}{m.s^{-2}}$

* Using Predefined Unit Macros
  Wavelength $\lambda = \qty{632.8}{\nm}$
  Power $P = \qty{100}{\kW}$
  Temperature $T = \qty{300}{\K}$

* `\unit{}` - Typesets a unit on its own.
  Measurement precision is on the order of \unit{mm}

* `\num{}` - Typesets a number.
  Number of measurements $n = \num{10000}$

* Uncertainty Representation
  $h = \qty{6.626(15)e-34}{\J\s}$
```
```

--------------------------------

### Compile Document

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Standard compilation sequence for documents using bibtex and xelatex.

```bash
xelatex template
bibtex template
xelatex template
xelatex template
```

--------------------------------

### Table Column Formatting with dcolumn

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Illustrates the use of the dcolumn package for creating table columns that align by the decimal point. This provides an alternative to siunitx's similar functionality.

```latex
dcolumn
```

--------------------------------

### Report Metadata Commands

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Set report title, author, affiliation, date, abstract, and keywords. \maketitle generates the title page.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

% 报告标题 - 应简短明确，切合报告内容
\title{光电效应测普朗克常数}

% 作者姓名 - \emailphone 必须紧跟 \author 后面
\author{张三}
% 方式一: 同时提供邮箱和电话
\emailphone{zhangsan@pku.edu.cn}{(86)138XXXXXXXX}
% 方式二: 仅提供邮箱 (可选的前缀文本)
\emailphone[联系方式: ]{zhangsan@pku.edu.cn}{138XXXXXXXX}
% 方式三: 只有邮箱时使用 \email
\email{zhangsan@pku.edu.cn}

% 作者单位和学号
\affiliation{北京大学物理学院\quad 学号: 2100000000}

% 实验日期 - 推荐使用 \zhdate 或 \localedate 生成中文日期
\date{\zhdate{2024/3/15}}        % 输出: 2024 年 3 月 15 日
% 或使用 babel 提供的命令
\date{\localedate{2024}{3}{15}}  % 输出: 2024 年 3 月 15 日

% 摘要 - 200-300 字
\begin{abstract}
  本实验通过光电效应测量了普朗克常数。
  使用汞灯光源和光电管，测量不同频率光照射下的截止电压。
  由截止电压与光频率的线性关系，拟合得到普朗克常数为
  $h = (6.58 \pm 0.12) \times 10^{-34}$ J·s，
  与公认值误差在 2% 以内。
\end{abstract}

% 关键词 - 2-4 个
\keywords{光电效应, 普朗克常数, 截止电压}

% 生成标题页
\maketitle
```

--------------------------------

### Define Email and Phone Number with Footnote

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

The \emailphone command creates a footnote with a pretext, email address (as a link), and phone number. Requires the \emailphone command to be defined.

```latex
\emailphone[<pretext>]{<email>}{<phone>}
```

--------------------------------

### Report Metadata Commands

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Commands for setting the title, author, affiliation, date, and abstract for the experiment report.

```APIDOC
## Report Metadata Commands

Set the basic information for the experiment report, such as title, author, affiliation, date, and abstract.

### Example Usage
```latex
\documentclass[font=default]{mpltx}
\begin{document}

% Report Title - Should be concise and relevant to the report content
\title{Measurement of Planck's Constant via Photoelectric Effect}

% Author Name - \emailphone must follow \author immediately
\author{Zhang San}
% Method 1: Provide both email and phone
\emailphone{zhangsan@pku.edu.cn}{(86)138XXXXXXXX}
% Method 2: Provide only email (optional prefix text)
\emailphone[Contact Info: ]{zhangsan@pku.edu.cn}{138XXXXXXXX}
% Method 3: Use \email when only email is provided
\email{zhangsan@pku.edu.cn}

% Author Affiliation and Student ID
\affiliation{School of Physics, Peking University\quad Student ID: 2100000000}

% Experiment Date - Recommended to use \zhdate or \localedate for Chinese dates
\date{\zhdate{2024/3/15}}        % Outputs: 2024 年 3 月 15 日
% Or use babel's provided command
\date{\localedate{2024}{3}{15}}  % Outputs: 2024 年 3 月 15 日

% Abstract - 200-300 words
\begin{abstract}
  This experiment measures Planck's constant using the photoelectric effect.
  Using a mercury lamp as the light source and a phototube, the cutoff voltage for different light frequencies was measured.
  From the linear relationship between cutoff voltage and light frequency, Planck's constant was fitted as
  $h = (6.58 \pm 0.12) \times 10^{-34}$ J·s,
  with an error within 2% of the accepted value.
\end{abstract}

% Keywords - 2-4 keywords
\keywords{Photoelectric Effect, Planck's Constant, Cutoff Voltage}

% Generate Title Page
\maketitle
```
```

--------------------------------

### Document Class Invocation

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Demonstrates the basic and customized ways to invoke the mpltx document class, including font and feature options.

```APIDOC
## Document Class Invocation

Use the `mpltx` document class to create experiment reports. This document class inherits from `revtex4-2`, pre-sets the APS Physical Review E preprint format, and supports A4 paper and AMS mathematical symbols.

### Basic Usage - Using Default Configuration
```latex
% Basic usage - using default configuration
\documentclass{mpltx}
```

### Specifying Font Options (Windows Users)
```latex
% Specifying font options (Windows users)
\documentclass[font=windows]{mpltx}
```

### Specifying Font Options (macOS Users)
```latex
% Specifying font options (macOS users)
\documentclass[font=macos]{mpltx}
```

### Using Noto + Fandol Font Combination (Cross-platform Recommended)
```latex
% Using Noto + Fandol font combination (cross-platform recommended)
\documentclass[font=notofandol]{mpltx}
```

### Enabling Full-width Period Mapping (Automatically replaces "。" with "．")
```latex
% Enabling full-width period mapping (automatically replaces "。" with "．")
\documentclass[quanjiao]{mpltx}
```

### Enabling physics Package Support
```latex
% Enabling physics package support
\documentclass[physics]{mpltx}
```

### Combining Multiple Options
```latex
% Combining multiple options
\documentclass[font=notofandol,quanjiao,physics]{mpltx}
```
```

--------------------------------

### Mathematical and Physical Symbol Commands

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Provides shorthand commands for common mathematical and physical symbols, adhering to national standards for upright symbols.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

% \ii - 虚数单位 i (正体)
% \jj - 虚数单位 j (正体，电气工程常用)
% \ee - 自然对数底 e (正体)
% \uppi - 圆周率 π (正体)

% 欧拉公式示例
\begin{equation}
  \ee^{\ii\uppi} + 1 = 0
\end{equation}

% 复数阻抗示例 (电气工程)
\begin{equation}
  Z = R + \jj\omega L = |Z|\ee^{\jj\phi}
\end{equation}

% 高斯积分
\begin{equation}
  \int_{-\infty}^{+\infty} \ee^{-x^2} \mathrm{d}x = \sqrt{\uppi}
\end{equation}

\end{document}
```

--------------------------------

### Mathematics and Physics Symbols Commands

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Provides shorthand commands for common mathematical and physical symbols, adhering to national standards and ISO requirements for upright symbols.

```APIDOC
## Mathematics and Physics Symbols Commands

The template provides shorthand commands for common mathematical and physical symbols, conforming to national standards and ISO requirements for upright symbols.

### Commands
* `\ii` - Imaginary unit i (upright)
* `\jj` - Imaginary unit j (upright, common in electrical engineering)
* `\ee` - Base of natural logarithm e (upright)
* `\uppi` - Pi (upright)

### Example: Euler's Formula
```latex
\begin{equation}
  \ee^{\ii\uppi} + 1 = 0
\end{equation}
```

### Example: Complex Impedance (Electrical Engineering)
```latex
\begin{equation}
  Z = R + \jj\omega L = |Z|\ee^{\jj\phi}
\end{equation}
```

### Example: Gaussian Integral
```latex
\begin{equation}
  \int_{-\infty}^{+\infty} \ee^{-x^2} \mathrm{d}x = \sqrt{\uppi}
\end{equation}
```
```

--------------------------------

### Font Options

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Details on configuring Chinese font schemes, with support for 6 preset configurations to adapt to different operating systems and font environments.

```APIDOC
## Font Options (font)

Configure Chinese font schemes. Supports 6 preset configurations, adapting to different operating systems and font environments.

### `font=default` - Using xeCJK Default Configuration (Fandol Font)
* The most compatible option, suitable for first-time users.
```latex
% font=default - using xeCJK default configuration (Fandol font)
% The most compatible option, suitable for first-time users
\documentclass[font=default]{mpltx}
```

### `font=fandol` - Author's Customized Fandol Font Configuration
* Serif italics use Fangsong, sans-serif italics use Kaiti.
```latex
% font=fandol - author customized Fandol font configuration
% Serif italics use Fangsong, sans-serif italics use Kaiti
\documentclass[font=fandol]{mpltx}
```

### `font=noto` - Using Noto CJK SC Series Fonts
* Requires installation of Noto Serif CJK SC and Noto Sans CJK SC.
* Fangsong and Kaiti use system-provided fonts (Windows/macOS only).
```latex
% font=noto - using Noto CJK SC series fonts
% Requires installation of Noto Serif CJK SC and Noto Sans CJK SC
% Fangsong and Kaiti use system-provided fonts (only Windows/macOS)
\documentclass[font=noto]{mpltx}
```

### `font=notofandol` - Noto Serif/Sans + Fandol Fangsong/Kaiti
* Recommended cross-platform solution, but baseline alignment may occur.
```latex
% font=notofandol - Noto Serif/Sans + Fandol Fangsong/Kaiti
% Cross-platform recommended solution, but baseline alignment may occur
\documentclass[font=notofandol]{mpltx}
```

### `font=windows` - Using Windows System Fonts
* HuaWen Song Ti, Deng Xian, HuaWen Fang Song, HuaWen Kai Ti.
```latex
% font=windows - using Windows system fonts
% HuaWen Song Ti, Deng Xian, HuaWen Fang Song, HuaWen Kai Ti
\documentclass[font=windows]{mpltx}
```

### `font=macos` - Using macOS System Fonts
* Song Ti Simplified, Ping Fang, Fang Song, Kai Ti Simplified.
```latex
% font=macos - using macOS system fonts
% Song Ti Simplified, Ping Fang, Fang Song, Kai Ti Simplified
\documentclass[font=macos]{mpltx}
```

### Customizing Fonts After Using Any Option
```latex
% Customizing fonts after using any option
\documentclass[font=default]{mpltx}
\setCJKmainfont{Source Han Serif SC}
\setCJKsansfont{Source Han Sans SC}
```
```

--------------------------------

### Create Academic Tables with ruledtabular

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Use the \texttt{ruledtabular} environment for academic-style tables with double horizontal rules. Supports \texttt{d{a.b}} column format for decimal alignment.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

\begin{table}
  \caption{不同波长下的光电效应测量数据}
  \label{tab:photoelectric}
  \begin{ruledtabular}
    % d{a.b} 格式: 小数点前留 a 位，后留 b 位
    % \mc 是 \multicolumn 的简写
    \begin{tabular}{cd{3.1}d{1.3}d{1.2}}
      序号 & \mc{1}{c}{波长/nm} & \mc{1}{c}{频率/$10^{14}$Hz} & \mc{1}{c}{截止电压/V} \\
      \colrule  % 中间横线
      1 & 365.0 & 8.214 & 1.85 \\
      2 & 404.7 & 7.408 & 1.43 \\
      3 & 435.8 & 6.879 & 1.18 \\
      4 & 546.1 & 5.490 & 0.62 \\
      5 & 577.0 & 5.196 & 0.47 \\
    \end{tabular}
  \end{ruledtabular}
\end{table}

% 表格脚注会自动放在表尾
\begin{table}
  \caption{实验参数% 
    \footnote{室温 $T = \qty{25}{\celsius}$}% 
    \footnote{相对湿度 45%}}
  \label{tab:params}
  \begin{ruledtabular}
    \begin{tabular}{lc}
      参数 & 数值 \\
      \colrule
      光电管型号 & GD-4 \\
      光源 & 高压汞灯 \\
    \end{tabular}
  \end{ruledtabular}
\end{table}

\end{document}
```

--------------------------------

### Font Configuration Options

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Configure Chinese font schemes with 6 preset options. Use \setCJKmainfont and \setCJKsansfont for custom font definitions.

```latex
% font=default - 使用 xeCJK 默认配置 (Fandol 字体)
% 最兼容的选项，适合初次使用者
\documentclass[font=default]{mpltx}
```

```latex
% font=fandol - 作者定制的 Fandol 字体配置
% 衬线斜体使用仿宋，无衬线斜体使用楷体
\documentclass[font=fandol]{mpltx}
```

```latex
% font=noto - 使用 Noto CJK SC 系列字体
% 需要安装 Noto Serif CJK SC 和 Noto Sans CJK SC
% 仿宋和楷体使用系统自带字体 (仅 Windows/macOS)
\documentclass[font=noto]{mpltx}
```

```latex
% font=notofandol - Noto 宋体黑体 + Fandol 仿宋楷体
% 跨平台推荐方案，但可能存在基线不对齐
\documentclass[font=notofandol]{mpltx}
```

```latex
% font=windows - 使用 Windows 系统字体
% 华文宋体、等线、华文仿宋、华文楷体
\documentclass[font=windows]{mpltx}
```

```latex
% font=macos - 使用 macOS 系统字体
% 宋体-简、苹方、仿宋、楷体-简
\documentclass[font=macos]{mpltx}
```

```latex
% 使用任意选项后仍可自定义字体
\documentclass[font=default]{mpltx}
\setCJKmainfont{Source Han Serif SC}
\setCJKsansfont{Source Han Sans SC}
```

--------------------------------

### Insert and Reference Figures with graphicx

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

Use the \texttt{graphicx} package to insert figures. Supports relative width settings and automatic numbering. Recommended to use vector formats like PDF for data plots.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

% 单图插入
\begin{figure}
  \centering
  % 推荐使用相对宽度，适应不同页面
  \includegraphics[width=0.8\linewidth]{fig/instruments.png}
  \caption{光电效应实验装置示意图。
    光源发出的光经滤光片选频后照射到光电管阴极，
    产生的光电子被阳极收集，通过微电流计测量光电流。}
  \label{fig:setup}
\end{figure}

% 数据图 (推荐使用矢量格式 PDF)
\begin{figure}
  \centering
  \includegraphics[width=0.85\textwidth]{fig/figsample.pdf}
  \caption{截止电压与光频率的关系。
    实线为最小二乘法拟合结果，斜率对应 $h/e$。
    误差棒表示测量的标准不确定度。}
  \label{fig:data}
\end{figure}

% 引用图片 - \autoref 自动添加 "图" 字
由\autoref{fig:setup}可见，实验装置由光源、滤光片和光电管组成。
\autoref{fig:data}展示了截止电压随频率的变化关系。

\end{document}
```

--------------------------------

### Math Mode Aliases for j, i, and e

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Defines \jj, \ii, and \ee as \mathrm versions of j, i, and e respectively for use in mathematical mode.

```latex
\jj, \ii, \ee
```

--------------------------------

### Punctuation Option for Full-width Punctuation

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Use the 'quanjiao' option to automatically replace standard Chinese full-width punctuation (like '。') with '．' when inputting '。'. This is useful for adhering to GB/T 15834-1995 standards in scientific documents.

```latex
quanjiao
```

--------------------------------

### Automatic Cross-Referencing with \autoref

Source: https://context7.com/castlestar14654/pkumpltx/llms.txt

The \texttt{\\autoref} command automatically generates cross-references with type names, localized for Chinese. It supports sections, equations, figures, tables, and appendices.

```latex
\documentclass[font=default]{mpltx}
\begin{document}

\section{理论背景}\label{sec:theory}

光电效应的基本方程为
\begin{equation}\label{eq:photoelectric}
  h\nu = W + \frac{1}{2}mv_{\max}^2
\end{equation}

\subsection{实验方法}\label{ssec:method}

% 各种交叉引用示例
根据\autoref{sec:theory}的理论分析...   % 输出: 小节 1
由\autoref{eq:photoelectric}可知...     % 输出: 式 (1)
实验装置见\autoref{fig:setup}...        % 输出: 图 1
测量数据列于\autoref{tab:data}...       % 输出: 表 1

% 页码引用
参见\autopageref{tab:data}...           % 输出: 第 X 页

\appendix
\section{公式推导}\label{app:derivation}
...

\end{document}
```

--------------------------------

### Subfig Package Option

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

When using the subfig package, it's necessary to disable its default caption handling by setting the 'caption=false' option to avoid conflicts with the revtex4-2 base class.

```latex
caption=false
```

--------------------------------

### Alias for multicolumn

Source: https://github.com/castlestar14654/pkumpltx/blob/master/README.md

Defines \mc as an alias for the \multicolumn command in LaTeX.

```latex
\mc
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.