报告/书中的 chemmacros 反应计数器

Question

是否可以以某种方式将章节号添加到计数器reaction中chemmacros，并在增加时重置它chapter？在equation和figure等中，章节添加到计数器之前，例如 1.2，第一个数字表示章节，第二个数字表示图等，在report/book和 KOMA scrreprt/中scrbook。

梅威瑟：

\documentclass{scrreprt}
\usepackage{amsmath}
\usepackage{chemmacros}
\chemsetup{modules=reactions}
\begin{document}
\chapter{Reactions without chapter number}
With x.y
\begin{equation}
f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\chapter{And repeat booth with counter resetting}
With (x.1).y
\begin{equation}
    f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z, but incremented.
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\end{document}

Answer 1

该chemmacros软件包\renewtagform正好有这个功能（参见软件包文档第 35 页）。例如，使用方法如下：

\documentclass{scrreprt}
\usepackage{amsmath}
\usepackage{chemmacros}
\chemsetup{modules=reactions}

\renewtagform{reaction}[\thechapter.]{(}{)}

% Phelype Oleinik's answer added: 
\makeatletter
\@addtoreset{reaction}{chapter}
\makeatother

\begin{document}
\chapter{Reactions without chapter number}
With x.y
\begin{equation}
f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\chapter{And repeat booth with counter resetting}
With (x.1).y
\begin{equation}
    f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z, but incremented.
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\end{document}

Answer 2

附带chngcntr包装：

\documentclass{scrreprt}
\usepackage{amsmath}
\usepackage{chemmacros}
\chemsetup{modules=reactions}

\usepackage{chngcntr}
\counterwithin{reaction}{chapter}

\begin{document}

\chapter{Reactions chapter number}
With x.y
\begin{equation}
f(x)=e^{\frac{1}{x}}
\end{equation}
With x.z
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\chapter{And repeat both with counter resetting}
With (x.1).y
\begin{equation}
    f(x)=e^{\frac{1}{x}}
\end{equation}
With x.z
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}

\end{document} 

Answer 3

不需要额外的包或\makeatletter定义：

\documentclass{scrreprt}
% \usepackage{amsmath} already loaded by `chemmacros'
\usepackage{chemmacros}
\chemsetup{modules=reactions}
\numberwithin{reaction}{chapter}% provided by the `amsmath' package

\begin{document}

\chapter{Reactions without chapter number}
With x.y
\begin{equation}
f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}
\chapter{And repeat booth with counter resetting}
With (x.1).y
\begin{equation}
    f(x)=e^{\frac{1}{x}}
\end{equation}
Only with z, but incremented.
\begin{reaction}
    H2O + H3O+ -> H2O2 + H+
\end{reaction}

\end{document}

Answer 4

有一个命令\@addtoreset，当另一个计数器增加时，会重置一个计数器。

只需将其添加到您的序言中：

\makeatletter
\@addtoreset{reaction}{chapter}
\makeatother

reaction当chapter计数器增加时，它将重置计数器。