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左对齐乳胶多行方程

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左对齐乳胶多行方程

我在一个 2 列文档中有一个多行方程。我希望“+”号后的最后一项，即L_{p}^{ITM}\delta_{i,B}，左对齐。从图中可以看出，以下 latex 脚本将最后一项设为右对齐。（完整代码如下）

\documentclass[journal]{IEEEtran}
\usepackage{amsmath}
\usepackage{adjustbox}
\usepackage[noadjust]{cite} 
\usepackage{amsmath,amssymb}
\usepackage{amsthm}
\usepackage{color}
\usepackage[mathscr]{eucal}
\usepackage{graphics,graphicx,multicol}
\usepackage{epsfig}
\usepackage{enumerate}
\usepackage{multirow}
\usepackage{cite}
\usepackage{courier}
\newtheorem{thm}{Theorem}[section]
\newtheorem{lem}[thm]{Lemma}
\newtheorem{cor}[thm]{Corollary}
\newtheorem{rem}[thm]{Remark}
\newtheorem{pro}[thm]{Proposition}
\pagenumbering{arabic}
\pagestyle{plain}
\usepackage{lipsum,booktabs}
\usepackage{subfigure}
\usepackage{algorithmic}
\usepackage[section]{algorithm}
\usepackage{morefloats}
\usepackage{subfigure}
\usepackage{multirow}
\usepackage{array}
\usepackage{moredefs}

\begin{document}

\title{Title}
\author{Author}
\maketitle

\begin{abstract}
This is abstract.
\end{abstract}

\providelength{\AxesLineWidth}       \setlength{\AxesLineWidth}{0.5pt}
\providelength{\plotwidth}           \setlength{\plotwidth}{8cm}
\providelength{\LineWidth}           \setlength{\LineWidth}{0.7pt}
\providelength{\MarkerSize}          \setlength{\MarkerSize}{3pt}

\section{Introduction}\label{sec:intro}
Section1

\section{Equations}\label{sec:Eq}
The equation is: 

\begin{align*}\label{eqn:1_1}
   L_{p}(d, h_{TX}, h_{RX}) =  \{\{\overbrace{L_{fs}(R,f)U(0.1-d)}^{L_{p,1}}+\clipbox{-2 0 5 0}{$\overbrace{[L_{fs}(R,f) + \hspace{1em}}^{L_{p,2}}$} \\[\jot]
       \clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}(1 + \log_{10}(d))(L^{EH}_{B}(1,f) - L_{fs}(0.1,f)]\prod(\frac{d-0.05}{0.1})\hspace{1em}}$} +\\
\overbrace{\max\{L_{p}^{EH}(d,f),L_{p}^{ITM}(d,f)\}\prod(\frac{d-41}{80})}^{L_{p,3}} + \clipbox{-2 0 5 0}{$\overbrace{(L_{P}^{ITM}(d,f) + \hspace{1em}}^{L_{p,4}}$} \\[\jot]
       \clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}\max\{L^{EH}_{B}(80,f) - L_{p}^{ITM}(80,f),0\})U(d-80)\hspace{1em}}$}\}\delta_{iA} + \\L_{p}^{ITM}\delta_{i,B}                                     
\end{align*}

\end{document}

在此处输入图片描述

答案1

&只需在每行的开头添加一个，即可使其左对齐。

\documentclass[journal]{IEEEtran}
\usepackage{amsmath}
\usepackage{adjustbox}
\usepackage[noadjust]{cite} 
\usepackage{amsmath,amssymb}
\usepackage{amsthm}
\usepackage{color}
\usepackage[mathscr]{eucal}
\usepackage{graphics,graphicx,multicol}
\usepackage{epsfig}
\usepackage{enumerate}
\usepackage{multirow}
\usepackage{cite}
\usepackage{courier}
\newtheorem{thm}{Theorem}[section]
\newtheorem{lem}[thm]{Lemma}
\newtheorem{cor}[thm]{Corollary}
\newtheorem{rem}[thm]{Remark}
\newtheorem{pro}[thm]{Proposition}
\pagenumbering{arabic}
\pagestyle{plain}
\usepackage{lipsum,booktabs}
\usepackage{subfigure}
\usepackage{algorithmic}
\usepackage[section]{algorithm}
\usepackage{morefloats}
\usepackage{subfigure}
\usepackage{multirow}
\usepackage{array}
\usepackage{moredefs}

\begin{document}

\title{Title}
\author{Author}
\maketitle

\begin{abstract}
This is abstract.
\end{abstract}

\providelength{\AxesLineWidth}       \setlength{\AxesLineWidth}{0.5pt}
\providelength{\plotwidth}           \setlength{\plotwidth}{8cm}
\providelength{\LineWidth}           \setlength{\LineWidth}{0.7pt}
\providelength{\MarkerSize}          \setlength{\MarkerSize}{3pt}

\section{Introduction}\label{sec:intro}
Section1

\section{Equations}\label{sec:Eq}
The equation is: 

\begin{align*}\label{eqn:1_1}
   &L_{p}(d, h_{TX}, h_{RX}) =  \{\{\overbrace{L_{fs}(R,f)U(0.1-d)}^{L_{p,1}}
     +\clipbox{-2 0 5 0}{$\overbrace{[L_{fs}(R,f) + \hspace{1em}}^{L_{p,2}}$} 
     \\[\jot]
   &\clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}(1 + 
     \log_{10}(d))(L^{EH}_{B}(1,f) - L_{fs}(0.1,f)]\prod(\frac{d-0.05}{0.1})
     \hspace{1em}}$} +\\
   &\overbrace{\max\{L_{p}^{EH}(d,f),L_{p}^{ITM}(d,f)\}\prod(%
     \frac{d-41}{80})}^{L_{p,3}} + \clipbox{-2 0 5 0}{%
     $\overbrace{(L_{P}^{ITM}(d,f) + \hspace{1em}}^{L_{p,4}}$} \\[\jot]
   &\clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}%
     \max\{L^{EH}_{B}(80,f) - L_{p}^{ITM}(80,f),0\})U(d-80)%
     \hspace{1em}}$}\}\delta_{iA} + \\
   &L_{p}^{ITM}\delta_{i,B}                                     
\end{align*}

\end{document}

在此处输入图片描述

我甚至可能建议让方程式的所有行都具有相等的基线跳跃。可以使用 TABstack 来实现这一点：

\documentclass[journal]{IEEEtran}
\usepackage{amsmath}
\usepackage{adjustbox}
\usepackage[noadjust]{cite} 
\usepackage{amsmath,amssymb}
\usepackage{amsthm}
\usepackage{color}
\usepackage[mathscr]{eucal}
\usepackage{graphics,graphicx,multicol}
\usepackage{epsfig}
\usepackage{enumerate}
\usepackage{multirow}
\usepackage{cite}
\usepackage{courier}
\newtheorem{thm}{Theorem}[section]
\newtheorem{lem}[thm]{Lemma}
\newtheorem{cor}[thm]{Corollary}
\newtheorem{rem}[thm]{Remark}
\newtheorem{pro}[thm]{Proposition}
\pagenumbering{arabic}
\pagestyle{plain}
\usepackage{lipsum,booktabs}
\usepackage{subfigure}
\usepackage{algorithmic}
\usepackage[section]{algorithm}
\usepackage{morefloats}
\usepackage{subfigure}
\usepackage{multirow}
\usepackage{array}
\usepackage{moredefs}
\usepackage{tabstackengine}
\TABstackMath
\begin{document}

\title{Title}
\author{Author}
\maketitle

\begin{abstract}
This is abstract.
\end{abstract}

\providelength{\AxesLineWidth}       \setlength{\AxesLineWidth}{0.5pt}
\providelength{\plotwidth}           \setlength{\plotwidth}{8cm}
\providelength{\LineWidth}           \setlength{\LineWidth}{0.7pt}
\providelength{\MarkerSize}          \setlength{\MarkerSize}{3pt}

\section{Introduction}\label{sec:intro}
Section1

\section{Equations}\label{sec:Eq}
The equation is: 

\[\label{eqn:1_1}
\setstackgap{L}{38pt}
\alignCenterstack{
   &L_{p}(d, h_{TX}, h_{RX}) =  \{\{\overbrace{L_{fs}(R,f)U(0.1-d)}^{L_{p,1}}
     +\clipbox{-2 0 5 0}{$\overbrace{[L_{fs}(R,f) + \hspace{1em}}^{L_{p,2}}$} 
     \\
   &\clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}(1 + 
     \log_{10}(d))(L^{EH}_{B}(1,f) - L_{fs}(0.1,f)]\prod(\frac{d-0.05}{0.1})
     \hspace{1em}}$} +\\
   &\overbrace{\max\{L_{p}^{EH}(d,f),L_{p}^{ITM}(d,f)\}\prod(%
     \frac{d-41}{80})}^{L_{p,3}} + \clipbox{-2 0 5 0}{%
     $\overbrace{(L_{P}^{ITM}(d,f) + \hspace{1em}}^{L_{p,4}}$} \\
   &\clipbox{100 0 -2 0}{$\overbrace{\phantom{\hspace{10em}}%
     \max\{L^{EH}_{B}(80,f) - L_{p}^{ITM}(80,f),0\})U(d-80)%
     \hspace{1em}}$}\}\delta_{iA} + \\
   &L_{p}^{ITM}\delta_{i,B}                                     
}
\]

\end{document}

在此处输入图片描述

答案2

只是为了多样性，这里有一个完全不同的解决方案（当然，仍然要注意确保所有的材料都适合可用的列宽）：我建议您提供（a）一个总结方程和（b）四个子方程来为到的项提供内容，而不是显示一个带有几个断开的括号的五行L_{p,1}方程L_{p,4}。

在此处输入图片描述

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