帮助水平对齐

Question

您能帮我将文本移近左边吗，例如：

\documentclass[11pt,fleqn]{book}

\usepackage{amsmath,amsfonts,amssymb,amsthm}

\begin{document}
\noindent
where
\begin{flalign*}
&\Delta f_{res} & - & \mbox{\emph{lock time in microseconds}}&&\\
&\mathcal{L} & - & \mbox{\emph{is the loop bandwidth in kHz, and}}&&\\
&f_{m} & - & \frac{Frequency~Tolerance}{Frequency~Jump}&&
\end{flalign*}
\end{document}

谢谢，

Answer 1

这是一种不会被滥用的可能性flalign：

\documentclass{book}

\usepackage{amsmath,siunitx}

\begin{document}

\noindent
where
\[
\makebox[\displaywidth][l]{$\displaystyle
  \begin{array}{@{} l l @{}}
  \Delta f_{\mathrm{res}} & \mbox{---\quad \emph{lock time in microseconds,}} \\
  \mathcal{L}             & \mbox{---\quad \emph{loop bandwidth in \si{kHz}, and}} \\
  f_{m}                   & \mbox{---\quad}\dfrac{\text{\emph{Frequency Tolerance}}}
                                                 {\text{\emph{Frequency Jump}}.}
  \end{array}
$}
\]

\end{document}

Answer 2

这是更新后的代码：

\documentclass[11pt,fleqn]{book}

\usepackage{amsmath,amsfonts,amssymb,amsthm}

\begin{document}
\noindent
where
\begin{flalign*}
&\Delta f_{res} & \hspace{-1.6cm} - & \mbox{\emph{lock time in microseconds}}&&\\
&\mathcal{L} & \hspace{-2.1cm} - & \mbox{\emph{is the loop bandwidth in kHz, and}}&&\\
&f_{m} & \hspace{-2cm} - & \frac{Frequency~Tolerance}{Frequency~Jump}&&
\end{flalign*}
\end{document}

Answer 3

那这个呢，看起来更加好看。

\documentclass[11pt,fleqn]{book}

\usepackage{amsmath,amsfonts,amssymb,amsthm}

\begin{document}
\noindent
where
    \begin{flalign*}
&\Delta f_{res} & \hspace{-1.6cm}{:~}  & \mbox{\emph{lock time in microseconds}}&&\\
&\mathcal{L} & \hspace{-2.1cm}{:~}  &  \mbox{\emph{is the loop bandwidth in kHz, and}}&&\\
&f_{m} & \hspace{-2cm}{:~}  & \frac{Frequency~Tolerance}{Frequency~Jump}&&
\end{flalign*}
\end{document}

Answer 4

您可以使用左对齐tabular环境来实现您的目标。（以下屏幕截图左侧边缘的线条用于说明文本块的边缘。）

顺便说一句，我认为没有必要将说明性文本片段渲染为斜体。要以直立文本字体渲染材料，只需删除\em下面代码中的指令，然后替换\textit为\textrm。

\documentclass[11pt,fleqn]{book}
\usepackage{amsmath,array}
\usepackage{showframe}
\newcolumntype{L}{>{$}l<{$} }
\begin{document}
\noindent \dots

\noindent where\\[1ex]
\noindent
\begin{tabular}{@{} L @{\quad---\quad} >{\em}l}
\Delta f_{\textit{res}} & lock time in microseconds,\\
\mathcal{L}    & loop bandwidth in kHz, and\\[0.5ex]
f_{m}          & $\dfrac{\textit{Frequency Tolerance}}{\textit{Frequency Jump}}$\\
\end{tabular}
\end{document}