包含方程式的自定义环境的标签没有将标签放在正确的位置。我可能没有正确的搜索词,因为我找不到此问题的解决方案。这是我的 MWE:
\documentclass{article}
\usepackage{mathtools}
% PRB: Tag placement on a line does not position flush right.
\newcounter{derivativeFormula}
\renewcommand*{\thederivativeFormula}{\textsc{df}\arabic{derivativeFormula}}
\usepackage{zref-savepos}
\makeatletter
\newenvironment{DerivativeFormula}{ %
\def\equation{$$\refstepcounter{derivativeFormula}} % order
\def\@eqnnum{{\normalfont \normalcolor \thederivativeFormula}}% is
\equation % important!
}{ %
\@gobble %
\print@eqnum{(\thederivativeFormula)} %
\endequation %
}
\makeatother
\begin{document}
A regular equation which should be reference (1).
\begin{equation}\label{eqn:testA}
\frac{dx}{dx} = 1
\end{equation}
A regular equation which should be reference (2).
\begin{equation}\label{eqn:testB}
\frac{d(u+v)}{dx} = \frac{du}{dx}+\frac{dv}{dx}
\end{equation}
This is the \texttt{DerivativeFormula} environment. I want the tag
to be flush right. It should read (DF1) but way that way -->.
\begin{DerivativeFormula}\label{eqn:testC}
\frac{d(uv)}{dx} = u\frac{du}{dx} + v\frac{du}{dx}
\end{DerivativeFormula}
Another plain equation to check numbering and reference (3).
\begin{equation}\label{eqn:testD}
\frac{du^n}{dx} = nu^{n-1}\frac{du}{dx}
\end{equation}
The values of the references are, in order,
\eqref{eqn:testA}, \eqref{eqn:testB}, \eqref{eqn:testC}, \eqref{eqn:testD}.
\end{document}
答案1
关键是使用\tag
,芭芭拉提醒我,当(或)加载时\tag
,在里面工作,因此我进行了编辑,以用环境替换我的选择。equation
amsmath
mathtools
gather
equation
\documentclass{article}
\usepackage{mathtools}
\newcounter{derivativeFormula}
\renewcommand*{\thederivativeFormula}{\textsc{df}\arabic{derivativeFormula}}
\usepackage{zref-savepos}
\makeatletter
\newenvironment{DerivativeFormula}{
\refstepcounter{derivativeFormula}
\equation
}{
\tag{\thederivativeFormula}
\endequation
}
\makeatother
\begin{document}
A regular equation which should be reference (1).
\begin{equation}\label{eqn:testA}
\frac{dx}{dx} = 1
\end{equation}
A regular equation which should be reference (2).
\begin{equation}\label{eqn:testB}
\frac{d(u+v)}{dx} = \frac{du}{dx}+\frac{dv}{dx}
\end{equation}
This is the \texttt{DerivativeFormula} environment. I want the tag
to be flush right. It should read (DF1) but way that way $\rightarrow$.
\begin{DerivativeFormula}\label{eqn:testC}
\frac{d(uv)}{dx} = u\frac{dv}{dx} + v\frac{du}{dx}
\end{DerivativeFormula}
Another plain equation to check numbering and reference (3).
\begin{equation}\label{eqn:testD}
\frac{du^n}{dx} = nu^{n-1}\frac{du}{dx}
\end{equation}
The values of the references are, in order,
\eqref{eqn:testA}, \eqref{eqn:testB}, \eqref{eqn:testC}, \eqref{eqn:testD}.
Here is the next derivative formula:
\begin{DerivativeFormula}\label{eqn:testZ}
\frac{d(uw)}{dx} = u\frac{dw}{dx} + w\frac{du}{dx}
\end{DerivativeFormula}
\end{document}
附言:我还纠正了中的数学运算(DF1)
。