我正在尝试对我的定义/示例等进行一些风格化,以便在完成后有一个更简单的概述。我特别想实现这一点:但我真的不知道如何实现它。我只能想到一个垂直拉伸的细框,与整个环境的左侧对齐,但由于我对 tex 还不太熟悉,所以无法实现它。
梅威瑟:
\pdfminorversion=7
\documentclass[a4paper, 12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath, amsthm, amssymb, amsfonts}
\usepackage{thmtools}
\usepackage{lipsum}
% Theorem styles
\newtheoremstyle{customDefinition}
{} % Space above, empty = `usual value'
{} % Space below
{\itshape} % Body font
{} % Indent amount (empty = no indent, \parindent = para indent)
{\bfseries} % Thm head font
{} % Punctuation after thm head
{\newline} % Space after thm head: \newline = linebreak
{Definition \thmnumber{#2}\thmname{\hfill#1}} % Thm head spec
\begin{document}
\theoremstyle{customDefinition}
\newtheorem{definition}{Matrix}[section]
\begin{definition}
\lipsum[2]
\end{definition}
\end{document}
答案1
我建议此代码完全基于thmtools
和leftbar
来自framed
包的环境:
\pdfminorversion=7
\documentclass[a4paper, 12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[showframe]{geometry} % showframe only for checking purpose. Remove for production.
\usepackage[svgnames]{xcolor}
\usepackage{amsmath, amsthm, amssymb}
\usepackage{thmtools}
\usepackage{lipsum}
\usepackage{framed}
\colorlet{headcolour}{DarkOrange}
\colorlet{rulecolour}{DarkOrange}
\renewenvironment{leftbar}{%
\def\FrameCommand{{\color{rulecolour}\vrule width 3pt} \hspace{10pt}}%
\MakeFramed {\advance\hsize-\width \FrameRestore}}%
{\endMakeFramed}
\declaretheoremstyle[headfont=\sffamily\bfseries,%
notefont=\sffamily\bfseries,%
notebraces={}{},%
headpunct=,%
bodyfont=\sffamily\itshape,%
headformat=\color{headcolour}\NAME~\NUMBER\hfill\NOTE\smallskip\linebreak,%
preheadhook=\begin{leftbar},%
postfoothook=\end{leftbar},%
]{customDefinition}
\declaretheorem[style=customDefinition, numberwithin=section]{definition}
\begin{document}
\setcounter{section}{4}
\begin{definition}[Matrix]
\lipsum[2]
\end{definition}
\end{document}