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非连续方程计数器（按方程类型增加）

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非连续方程计数器（按方程类型增加）

我正在尝试使用两个独立的方程计数器，一个用于 TypeA 方程，另一个用于 TypeB 方程。它们不应共享一个计数器，而应从它们所属的类型中选择计数器。

请注意，这与连续部分、小节等不同。我正在使用该amsmath包。

我想要以下内容（我不关心它是（1.1、1.2、...）还是（1a、1b、...））：

TypeA 1 (Funky Equation)
a = n (1.1)
b = m (1.2)

TypeB 1 (Crazy Equation)
a = n (1.1)
b = m (1.2)

TypeA 2 (Funkier Equation)
a = n (2.1)
b = m (2.2)

TypeB 2 (Crazies Equation)
a = n (2.1)
b = m (2.2)

TypeB 3 (Crazies Equation)
a = n (3.1)
b = m (3.2)

TypeB 4 (Crazies Equation)
a = n (4.1)
b = m (4.2)

TypeA 3 (Crazy Equation)
a = n (3.1)
b = m (3.2)

我的标题中有这个：

\newtheorem{typeagroup}{TypeA}
\newtheorem{typea}[typeagroup]{TypeA}
\counterwithout{equation}{typeagroup}

\newtheorem{typebgroup}{TypeB}
\newtheorem{typeb}[typebgroup]{TypeB}
\counterwithout{equation}{typebgroup}

请注意，只有当 TypeB 存在时，计数器才会递增。这是因为它是\counterwithin{}上述定义中的最后一个。

以下是我对每种类型的方程使用的代码格式：

\begin{typea}[Funky Equation]
\begin{subequations}
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{subequations}
\end{typea}

\begin{typeb}[Crazy Equation]
\begin{subequations}
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{subequations}
\end{typeb}

我得到以下信息：

TypeA 1 (Funky Equation)
a = n (0.1a)
b = m (0.1b)

TypeB 1 (Crazy Equation)
a = n (1.1a)
b = m (1.1b)

TypeA 2 (Funkier Equation)
a = n (1.1a)
b = m (1.1b)


TypeB 2 (Crazies Equation)
a = n (2.1a)
b = m (2.1b)

TypeB 3 (Crazies Equation)
a = n (3.1a)
b = m (3.1b)

TypeB 2 (Crazies Equation)
a = n (2.1a)
b = m (2.1b)

TypeA 3 (Crazy Equation)
a = n (2.1a)
b = m (2.1b)

答案1

定义新环境：

\documentclass{article}
\usepackage{amsmath}

\newtheorem{typea*}{Type A}
\newtheorem{typeb*}{Type B}

\newenvironment{typea}
 {\setcounter{equation}{\value{typea*}}\begin{subequations}\begin{typea*}}
 {\end{typea*}\end{subequations}}
\newenvironment{typeb}
 {\setcounter{equation}{\value{typeb*}}\begin{subequations}\begin{typeb*}}
 {\end{typeb*}\end{subequations}}

\begin{document}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\end{document}

如果您还需要与这些无关的“常规”方程数，则可以进行安排。

在此处输入图片描述

添加前缀非常简单：

\documentclass{article}
\usepackage{amsmath}

\newtheorem{typea*}{Type A}
\newtheorem{typeb*}{Type B}

\newenvironment{typea}
 {\setcounter{equation}{\value{typea*}}%
  \renewcommand{\theequation}{A-\arabic{equation}}%
  \begin{subequations}%
  \begin{typea*}}
 {\end{typea*}\end{subequations}}
\newenvironment{typeb}
 {\setcounter{equation}{\value{typeb*}}%
  \renewcommand{\theequation}{B-\arabic{equation}}%
  \begin{subequations}%
  \begin{typeb*}}
 {\end{typeb*}\end{subequations}}

\begin{document}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typeb}[Crazy Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typeb}

\begin{typea}[Funky Equation]
  \begin{align}
      a = n \\
      b = m 
  \end{align}
\end{typea}

\end{document}

在此处输入图片描述

答案2

我不明白你为什么要通过新的定理定义来进行。你可以定义一个新的计数器并将 LaTeX 的方程计数器别名化为它。这是我的宏版本\makeeqcontext（改编自我以前为自己编写的一些代码）：

\makeatletter
\def\makeeqcontext#1#2{%
  \edef\tmp@eqcontextcountername{eqcounter#1}%
  \expandafter\newcounter{\tmp@eqcontextcountername}%
  \expandafter\def\csname #1\endcsname{%
    \begingroup%
    \expandafter\let\expandafter\c@equation\csname c@eqcounter#1\endcsname%
    \renewcommand{\theequation}{#2}%
    %
  }%
  \expandafter\def\csname end#1\endcsname{%
    \endgroup%
  }
}%
\makeatother

其使用方法如下：

\makeeqcontext{<environment-name>}{<equation-label>}

它定义了一个具有给定名称的新环境，其中方程式具有具有给定标签的单独计数器。这是一个完全可行的例子：

\documentclass{article}
\usepackage{amsmath}
\makeatletter
\def\makeeqcontext#1#2{%
  \edef\tmp@eqcontextcountername{eqcounter#1}%
  \expandafter\newcounter{\tmp@eqcontextcountername}%
  \expandafter\def\csname #1\endcsname{%
    \begingroup%
    \expandafter\let\expandafter\c@equation\csname c@eqcounter#1\endcsname%
    \renewcommand{\theequation}{#2}%
    %
  }%
  \expandafter\def\csname end#1\endcsname{%
    \endgroup%
  }
}%
\makeatother
\makeeqcontext{typea}{A-\arabic{equation}}
\begin{document}
% default equation type:
\begin{align}
  a = b
  \label{a}
\end{align}
\begin{typea} % equation type A:
  \begin{align}
    c = d
    \label{c}
  \end{align}
\end{typea}
\begin{typea} % equation type A:
  \begin{subequations}
    \begin{align}
      e &= f \\
      g &= h \label{g}
    \end{align}
  \end{subequations}
\end{typea}
Reference~\eqref{a}, \eqref{c} and~\eqref{g}.
\end{document}

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