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如何减少方程环境内的边距？

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如何减少方程环境内的边距？

您是否知道如何减少方程环境中的边距，以确保很长的方程式适合一行（我已经减小了方程式的字体大小）？谢谢

这是我的代码：

\documentclass[11 pt,a4paper,oneside,openany, notitlepage]{article}
\input epsf
\usepackage{amsmath, amssymb, graphics}
\newcommand{\mathsym}[1]{{}}
\newcommand{\unicode}[1]{{}}
\newcounter{mathematicapage}
\usepackage{amsthm}
\usepackage{amsfonts}
\marginparwidth 0pt
\oddsidemargin 0pt
\evensidemargin 0pt
\marginparsep 0pt
\linespread{1.5}
\topmargin 0pt
\textwidth 6.5in
\textheight 8.5 in

\begin{document}
{\tiny
\begin{equation}
\begin{pmatrix}
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{l,t,R}^{(1)}(x_t,n;\theta)\hat{\mathbb{P}}_{x_t,n,T}-\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{1,x_t,n,T}\}-\sum_{x \in \mathcal{X}}^{}(\max\{0,H_{l,t}^{(1)}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)-\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(1)},X_t=x,N_t=n)\})\\
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{1,x_t,n,T}-\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{u,t,R}^{(1)}(x_t,n;\theta)\mathbb{P}_{x_t,n,T}\}-\sum_{x \in \mathcal{X}}^{}(\max\{0,\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(1)},X_t=x,N_t=n)-H_{u,t}^{(1)}(x,n;\theta)\mathbb{P}(X_t=x,N=n)\})\\
\vdots\\
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{l,t,R}^{(2^{n-1})}(x_t,n;\theta)\hat{\mathbb{P}}_{x_t,n,T}-\hat{\mathbb{P}}_{2^{n-1},x_t,n,T}\}-\sum_{x \in \mathcal{X}}^{}(\max\{0,H_{l,t}^{(2^{n-1})}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)-\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(2^{n-1})},X_t=x,N_t=n)\})\\
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{2^{n-1},x_t,n,T}-\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{u,t,R}^{(2^{n-1})}(x_t,n;\theta)\hat{\mathbb{P}}_{x_t,n,T}\}-\sum_{x \in \mathcal{X}}^{}(\max\{0,\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(2^{n-1})},X_t=x,N_t=n)-H_{u,t}^{(2^{n-1})}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)\})\\
\end{pmatrix}\\
\end{equation}
}
\end{document}

答案1

如果愿意的话，你可以把它当作\parenVectorstack数学。\textstyle

\documentclass[11 pt,a4paper,oneside,openany, notitlepage]{article}
\input epsf
\usepackage{amsmath, amssymb, graphicx}
\newcommand{\mathsym}[1]{{}}
\newcommand{\unicode}[1]{{}}
\newcounter{mathematicapage}
\usepackage{amsthm}
\usepackage{amsfonts}
\marginparwidth 0pt
\oddsidemargin 0pt
\evensidemargin 0pt
\marginparsep 0pt
\linespread{1.5}
\topmargin 0pt
\textwidth 6.5in
\textheight 8.5 in
\usepackage[usestackEOL]{stackengine}
\stackMath
\begin{document}
\savestack{\rowA}{\Longstack[r]{%
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{l,t,R}^{(1)}(x_t,n;%
  \theta)\hat{\mathbb{P}}_{x_t,n,T}-\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{1,x_t,n,T}\}\\
-\sum_{x \in \mathcal{X}}^{}(\max\{0,H_{l,t}^{(1)}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)\\
-\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(1)},X_t=x,N_t=n)\})%
}}
\savestack{\rowB}{\Longstack[r]{%
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{1,x_t,n,T}-\frac{1}%
  {T}\sum_{t=1}^{T}\hat{H}_{u,t,R}^{(1)}(x_t,n;\theta)\mathbb{P}_{x_t,n,T}\}\\
-\sum_{x \in \mathcal{X}}^{}(\max\{0,\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(1)},X_t=x,N_t=n)\\
-H_{u,t}^{(1)}(x,n;\theta)\mathbb{P}(X_t=x,N=n)\})
}}
\savestack{\rowC}{\Longstack[r]{%
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{H}_{l,t,R}^{(2^{n-1})}(x_t,n;%
  \theta)\hat{\mathbb{P}}_{x_t,n,T}-\hat{\mathbb{P}}_{2^{n-1},x_t,n,T}\}\\
-\sum_{x \in \mathcal{X}}^{}(\max\{0,H_{l,t}^{(2^{n-1})}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)\\
-\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(2^{n-1})},X_t=x,N_t=n)\})
}}
\savestack{\rowD}{\Longstack[r]{%
\max\{0,\frac{1}{T}\sum_{t=1}^{T}\hat{\mathbb{P}}_{2^{n-1},x_t,n,T}-\frac{1}%
  {T}\sum_{t=1}^{T}\hat{H}_{u,t,R}^{(2^{n-1})}(x_t,n;\theta)\hat{\mathbb{P}}_{x_t,n,T}\}\\
-\sum_{x \in \mathcal{X}}^{}(\max\{0,\mathbb{P}(G_{\cdot j,t}=g_{\bullet}^{(2^{n-1})},X_t=x,N_t=n)\\
-H_{u,t}^{(2^{n-1})}(x,n;\theta)\mathbb{P}(X_t=x,N_t=n)\})
}}
\begin{equation}
  \setstackgap{L}{4\baselineskip}
  \parenVectorstack{\rowA \\ \rowB \\ \raisebox{\baselineskip}{\vdots} \\ \rowC \\ \rowD}
\end{equation}
\end{document}

在此处输入图片描述

将末尾附近的行更改为

\scalebox{.7}{$%
  \parenVectorstack{\rowA \\ \rowB \\ \raisebox{\baselineskip}{\vdots} \\ \rowC \\ \rowD}$}

会减小物体的尺寸：

在此处输入图片描述

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