幫助水平對齊

Question

你能幫我將文字移近左側嗎，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}

謝謝，

Answer 1

這是一種不被濫用的可能性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

這是您更新的程式碼：

\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

怎麼樣，這樣看起來就更好了。

\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

您可以使用左對齊tabular環境來實現您的目標。 （以下螢幕截圖中沿左側邊緣的線用於說明文字區塊的邊緣。）

順便說一句，我認為實際上沒有必要以斜體呈現解釋性文字片段。要以直立文字字體呈現材料，只需刪除\em下面程式碼中的指令，並替換\textit為\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}