☰

方程式列表，包括方程式内容和标题

tag-icon • tag-icon table-of-contents equations content-replication etoc
方程式列表，包括方程式内容和标题

我想自动生成文档中存在的方程式列表，其中包括方程本身。下面是 MWE：

\documentclass{文章}
\def\caption#1{}
\开始{文档}
欧拉首先观察到
\开始{方程}
1 + e^{i \Pi} = 0.
\caption{欧拉方程将数学的五个基本常数联系在一起}
\end{方程}

然后，高斯发现了正态分布：
\开始{方程}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\caption{正态分布}
\end{方程}

最后，爱因斯坦宣称：
\开始{方程}
E = m C^2
\caption{质量和能量的等价性}
\end{方程}

\结束{文档}

这是输出可能呈现的样子的一个例子，但其他格式也可以；当然，如果有超链接、页码等就更好了，但这些并不是必需的。

\section*{方程列表}
\开始{枚举}
  \item 欧拉方程将数学的五个基本常数联系在一起
        \[
          1 + e^{i \Pi} = 0.
        \]
  \item 正态分布：
        \[
          P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
        \]
  \item 质量和能量的等价性
        \[
          E = m C^2
        \]
\end{枚举}

答案1

既然你想要一份备忘单，我推荐extract包。MWE 略有不同：

\documentclass{article}
\usepackage[
  active,
  header=false,
  copydocumentclass=true,
  generate=\jobname-Cheatsheet,
  extract-env={equation},
  extract-cmdline={synopsis},
  ]{extract} % http://ctan.org/pkg/extract
\begin{extract*}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
\end{extract*}
\begin{extract}
% Items executed only in extracted document
\def\synopsis#1{#1}
\end{extract}
\def\synopsis#1{}
\begin{document}
First Euler observed that
\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%
\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

Then, Gauss discovered the normal distribution:
\synopsis{Normal distribution}%
\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

Finally, Einstein proclaimed: 
\synopsis{Equivalence of mass and energy}%
\begin{equation}
E = m C^2
\end{equation}
\end{document}

您将获得以下原始文件：

在此处输入图片描述

以及一份摘录的文档：

\documentclass{article}
% Items executed in both the main and extracted document
% (extract manual, section 5.1)
\usepackage{amsmath}
% Items executed only in extracted document
\def\synopsis#1{#1}

\begin{document}

\synopsis{Euler's equation tying together the five fundamental constants of mathematics}%

\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}

\synopsis{Normal distribution}%

\begin{equation}
P(x) = \frac{1}{{\sigma \sqrt {2\pi } }}e^{{{ - \left( {x - \mu } \right)^2 } \mathord{\left/ {\vphantom {{ - \left( {x - \mu } \right)^2 } {2\sigma ^2 }}} \right. \kern-\nulldelimiterspace} {2\sigma ^2 }}}
\end{equation}

\synopsis{Equivalence of mass and energy}%

\begin{equation}
E = m C^2
\end{equation}

\end{document}

和：

在此处输入图片描述

这也适用于您的原始\caption命令。

答案2

我强烈建议你看一下float包裹\listof，随之而来的是可用于生成自定义浮动环境列表的命令。

然后，您可以定义自己的方程环境并使用该\listof命令生成方程列表。

这是一个简单的例子：

\documentclass{article}
\usepackage{float}
\floatstyle{plain}
\newfloat{myequation}{H}{eq}[section]
\floatname{myequation}{Equation}
\begin{document}
\listof{myequation}{List of Equations}
\section{First Section}
First Euler observed that
\begin{myequation}
\begin{equation}
1 + e^{i \Pi} = 0.
\end{equation}
\caption{Euler's equation tying together the five fundamental constants of mathematics}
\end{myequation}
\end{document}

但是现在方程式标题和方程式都已编号，因此您可能希望使用equation环境的标准版本来生成内部方程式，从而抑制内部方程式的编号。equation*环境可以在包中找到amsmath。

可以使用命令的可选参数来将实际方程式包含在方程式列表中，\caption如下所示：

\caption[$$1 + e^{i \Pi} = 0$$]{caption part not to be included in the list of equations}

然而，如果等式跨越多条线，比如说一个分数，这种方法就不起作用......

答案3

基于extract环境的答案听起来确实很有希望而且很优雅，但结果却有点脆弱，尤其是beamerarticle。有时它似乎毫无理由地很挑剔，直到\begin{equation}where 之前的空间发生变化。

这是使用该包的替代方法environ。使用方法如下：

\documentclass[twocolumn,10pt]{article}
\title{Demo of \texttt{generate-list-equations}}
\author{Yogi the bear}
\usepackage[fleqn]{amsmath}
\usepackage{generate-list-of-equations}

\begin{document}
\maketitle
\section{Start with a list of all equations}
\listofequations

\section{Main matters}
People say that \begin{equation}1+1=2\end{equation} but how do we know that this is true?

First, Euler observed that
\begin{equation}
  1 + e^{i \pi} = 0.
  \synopsis{Euler's equation tying together the five fundamental constants of mathematics}%
\end{equation}
Then, Gauss discovered the normal distribution:
\begin{equation}
  P(x) = \frac{1}{{\sigma \sqrt {2\pi }}} e^{-\frac{(x - \mu)^2} {2 \sigma^2}}
  \synopsis{Normal distribution}%
\end{equation}
Finally, Einstein proclaimed:
\begin{equation}
  E = m C^2
  \synopsis{Equivalnce of mass and energy}
\end{equation}

Only then, it became clear that 
\begin{equation}
  2 + 2 = 4
  \synopsis{Two and two before!}
\end{equation}

\section{The END}
That's all folks!
\section{PS. The list of equations can be placed anywhere}
\listofequations
\end{document}

在此处输入图片描述

在此处输入图片描述

这是实际的代码；它写在一个.sty文件中，但还不够完善，还不能被视为一个包。如果您需要使用它，很可能需要对其进行调整。

\RequirePackage{amsmath}
\RequirePackage{environ}

% The main command generates a list of equations by
% simply \input ting `\jobname.leq`
\newcommand\listofequations{%
  \IfFileExists{\jobname.leq}{\input{\jobname.leq}}{\relax}
}

% File "\jobname.eqn" collects all equations
\AtBeginDocument{%
  \newwrite\equationsListFile
  \immediate\openout\equationsListFile=\jobname.eqn%
  \immediate\write\equationsListFile{\unexpanded{\begingroup\description}}
  \immediate\write\equationsListFile{
    \unexpanded{\def\synopsis}
    \hashchar
    \unexpanded{1{}}
  }
  \immediate\write\equationsListFile{\unexpanded{\setlength{\itemsep}{2pt}}}
  \immediate\write\equationsListFile{\unexpanded{\abovedisplayskip=3pt plus 3pt minus 2pt}}
  \immediate\write\equationsListFile{\unexpanded{\belowdisplayskip=2pt plus 3pt minus 2pt}}
}

% Copy "\jobname.eqn" to "\jobname.leq"
\AtEndDocument{%
  \immediate\write\equationsListFile{\unexpanded{\enddescription\endgroup}}
  \immediate\closeout\equationsListFile
  \newread\in
  \openin\in=\jobname.eqn
  \newwrite\out
  \immediate\openout\out\jobname.leq
  \endlinechar-1
  \loop \unless\ifeof\in
  \readline\in to\l
  \immediate\write\out{\l}
  \repeat
  \immediate\closeout\out
  \closein\in
}

% Save previous \begin{equation} and \end{equation} commands:
\let\beginEquation=\equation
\let\endEquation=\endequation

% Undefine them, so that that the environment can be redefined:
\providecommand*\@nameundef[1]{%
  \expandafter\let\csname #1\endcsname\@undefined
}
\@nameundef{equation}
\@nameundef{endequation}

\NewEnviron{equation}{{%
  % Default equation name is empty:
  \gdef\equationName{}
  % Let the synposis command record the equation's name
  \def\synopsis##1{\gdef\equationName{##1}}
  % Generate equation in document as usual (but hook on \labe)
  \beginEquation
  \BODY
  \label{eq:\theequation}
  \endEquation
  \@onelevel@sanitize\BODY
  \@onelevel@sanitize\equationName
  % Generate an entry in \jobname.leq (tweak as necessary)
  \immediate\write\equationsListFile{\unexpanded{\pagebreak[3]}}
  \immediate\write\equationsListFile{\unexpanded{\item}}
  \immediate\write\equationsListFile{[(\unexpanded{\ref}{eq:\theequation})]}
  \immediate\write\equationsListFile{\equationName\unexpanded{~~\dotfill~~}\thepage}
  \immediate\write\equationsListFile{\unexpanded{\nopagebreak[3]}}
  \immediate\write\equationsListFile{\unexpanded{\\\begin{equation*}}}
  \immediate\write\equationsListFile{\BODY}
  \immediate\write\equationsListFile{\unexpanded{\end{equation*}}}
}}

% globally defines a macro \hashchar which holds a verbatim `#`
\begingroup
\catcode`\#=12
\gdef\hashchar{#}%
\endgroup

答案4

我找到了这个。非常简单！我只需要弄清楚如何让标题样式与文档中的其他列表相匹配，但我仍抱有希望！

https://latex.org/forum/viewtopic.php?t=428

\documentclass{article}
\usepackage{amsmath}
\usepackage{tocloft}

\begin{document}
\newcommand{\listequationsname}{List of Equations}
\newlistof{myequations}{equ}{\listequationsname}
\newcommand{\myequations}[1]{%
\addcontentsline{equ}{myequations}{\protect\numberline{\theequation}#1}\par}

\listofmyequations

\begin{equation}\label{eq:Eq1}
   a=b
\end{equation}
\myequations{Equation number \ref{eq:Eq1}}

\newpage

\begin{equation}\label{eq:Eq2}
   b=c
\end{equation}
\myequations{Equation number \ref{eq:Eq2}}

\end{document}

相关内容