winedt Archives - 小小泪

stackedit转为TeX表达式的正则替换规则

05/13/2016vanabel Leave a Comment

stackedit是一个比较好的在线数学编辑器, 可以随时写出漂亮的数学公式. 支持mathjax语法. 使用UserCustom extension中如下代码:

userCustom.onPagedownConfigure = function (editor) {
        var thmCounter  = { num: 0 };
        var excsCounter = { num: 0 };
        var environmentMap = {
            thm:   { title: "Theorem"    ,counter: thmCounter  },
            lem:   { title: "Lemma"      ,counter: thmCounter  },
            cor:   { title: "Corollary"  ,counter: thmCounter  },
            prop:  { title: "Property"   ,counter: thmCounter  },
            defn:  { title: "Definition" ,counter: thmCounter  },
            rem:   { title: "Remark"     ,counter: thmCounter  },
            prob:  { title: "Problem"    ,counter: excsCounter },
            excs:  { title: "Exercise"   ,counter: excsCounter },
            examp: { title: "Example"    ,counter: excsCounter },
            proof: { title: "Proof" },
            claim: { title: "Claim" }
        };
        var converter = editor.getConverter();
        // Save the preConversion callbacks stack
        var preConversion = converter.hooks.preConversion;
        converter.hooks.preConversion = function (text) {
            // Change \begin...\end to /begin.../end to avoid MathJax processing
            text = text.replace(/\\begin{(\w+)}([\s\S]*?)\\end{\1}/g, function (wholeMatch, m1, m2) {
                if(!environmentMap[m1]) return wholeMatch;
                // At this stage we need to keep the same number of characters for accurate section parsing
                return '/begin{' + m1 + '}' + m2 + '/end{' + m1 + '}';
            });
            // Transform \title and \section into markdown title to take benefit of partial rendering
            text = text.replace(/\\(\w+){([^\r\n}]+)}/g, function (wholeMatch, m1, m2) {
                // At this stage we need to keep the same number of characters for accurate section parsing
                if (m1 == 'section') {
                    // \section{} has to be replaced by 10 chars
                    return '\n###     ' + m2 + '\n';
                }
                if (m1 == 'subsection') {
                    // \subsection{} has to be replaced by 13 chars
                    return '\n####       ' + m2 + '\n';
                }
                if (m1 == 'subsubsection') {
                    // \subsubsection{} has to be replaced by 16 chars
                    return '\n#####         ' + m2 + '\n';
                }
                if (m1 == 'title') {
                    // \title{} has to be replaced by 8 chars
                    return '\n##    ' + m2 + '\n';
                }
                return wholeMatch;
            });
            // We are replacing the preConversion stack, call the other preConversion callbacks from the old stack
            return preConversion(text);
        };
        converter.hooks.chain("preBlockGamut", function (text, blockGamutHookCallback) {
            text = text.replace(/\\ref{(\w+):(\d+)}/g, function (wholeMatch, m1, m2) {
                if(!environmentMap[m1]) return wholeMatch;
                return '<a class="latex_ref" href="#' + m1 + ':' + m2 + '">' + environmentMap[m1].title + ' ' + m2 + '</a>';
            });
            text = text.replace(/\\(author|date){([\s\S]*?)}/g, '<div class="latex_$1">$2</div>');
            return text.replace(/\/begin{(\w+)}([\s\S]*?)\/end{\1}/g, function (wholeMatch, m1, m2) {
                if(!environmentMap[m1]) return wholeMatch;
                var result = '<div class="latex_' + m1 + '"><span class="latex_title"></span>' + blockGamutHookCallback(m2);
                if (m1 == "proof") {
                    result += '<span class="latex_proofend" style="float:right">$■$</span>';
                }
                return result + '</div>';
            });
        });
        var previewContentsElt = document.getElementById('preview-contents');
        editor.hooks.chain('onPreviewRefresh', function() {
            thmCounter.num = 0;
            excsCounter.num = 0;
            _.each(previewContentsElt.querySelectorAll('[class^="latex_"]'), function(elt) {
                var key = elt.className.match(/^latex_(\S+)/)[1];
                var environment = environmentMap[key];
                if(!environment) return;
                var title = environment.title;
                if(environment.counter) {
                    environment.counter.num++;
                    title += ' ' + environment.counter.num;
                    elt.id = key + ':' + environment.counter.num;
                }
                elt.querySelector('.latex_title').innerHTML = title + '.';
            });
        });
    };

    userCustom.onReady = function () {
        var style = [
            '.latex_thm, .latex_lem, .latex_cor, .latex_defn, .latex_prop, .latex_rem, .latex_claim {',
            '    font-style:italic;',
            '    display: block;',
            '    margin:15px 0;',
            '}',
            '.latex_prob, .latex_examp, .latex_excs, .latex_proof {',
            '    font-style:normal;',
            '    margin: 10px 0;',
            '    display: block;',
            '}',
            '.latex_title {',
            '    float:left;',
            '    font-weight:bold;',
            '    padding-right: 10px;',
            '}',
            '.latex_proofend {',
            '    float:right;',
            '}',
        ].join('\n');
        $("head").append($('<style type="text/css">').html(style));
    };

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userCustom.onPagedownConfigure = function (editor) {

var thmCounter = { num: 0 };

var excsCounter = { num: 0 };

var environmentMap = {

thm: { title: "Theorem" ,counter: thmCounter },

lem: { title: "Lemma" ,counter: thmCounter },

cor: { title: "Corollary" ,counter: thmCounter },

prop: { title: "Property" ,counter: thmCounter },

defn: { title: "Definition" ,counter: thmCounter },

rem: { title: "Remark" ,counter: thmCounter },

prob: { title: "Problem" ,counter: excsCounter },

excs: { title: "Exercise" ,counter: excsCounter },

examp: { title: "Example" ,counter: excsCounter },

proof: { title: "Proof" },

claim: { title: "Claim" }

};

var converter = editor.getConverter();

// Save the preConversion callbacks stack

var preConversion = converter.hooks.preConversion;

converter.hooks.preConversion = function (text) {

// Change \begin...\end to /begin.../end to avoid MathJax processing

text = text.replace(/\\begin{(\w+)}([\s\S]*?)\\end{\1}/g, function (wholeMatch, m1, m2) {

if(!environmentMap[m1]) return wholeMatch;

// At this stage we need to keep the same number of characters for accurate section parsing

return '/begin{' + m1 + '}' + m2 + '/end{' + m1 + '}';

});

// Transform \title and \section into markdown title to take benefit of partial rendering

text = text.replace(/\\(\w+){([^\r\n}]+)}/g, function (wholeMatch, m1, m2) {

// At this stage we need to keep the same number of characters for accurate section parsing

if (m1 == 'section') {

// \section{} has to be replaced by 10 chars

return '\n### ' + m2 + '\n';

}

if (m1 == 'subsection') {

// \subsection{} has to be replaced by 13 chars

return '\n#### ' + m2 + '\n';

}

if (m1 == 'subsubsection') {

// \subsubsection{} has to be replaced by 16 chars

return '\n##### ' + m2 + '\n';

}

if (m1 == 'title') {

// \title{} has to be replaced by 8 chars

return '\n## ' + m2 + '\n';

}

return wholeMatch;

});

// We are replacing the preConversion stack, call the other preConversion callbacks from the old stack

return preConversion(text);

};

converter.hooks.chain("preBlockGamut", function (text, blockGamutHookCallback) {

text = text.replace(/\\ref{(\w+):(\d+)}/g, function (wholeMatch, m1, m2) {

if(!environmentMap[m1]) return wholeMatch;

return '<a class="latex_ref" href="#' + m1 + ':' + m2 + '">' + environmentMap[m1].title + ' ' + m2 + '</a>';

});

text = text.replace(/\\(author|date){([\s\S]*?)}/g, '<div class="latex_$1">$2</div>');

return text.replace(/\/begin{(\w+)}([\s\S]*?)\/end{\1}/g, function (wholeMatch, m1, m2) {

if(!environmentMap[m1]) return wholeMatch;

var result = '<div class="latex_' + m1 + '"><span class="latex_title"></span>' + blockGamutHookCallback(m2);

if (m1 == "proof") {

result += '<span class="latex_proofend" style="float:right">$■$</span>';

}

return result + '</div>';

});

var previewContentsElt = document.getElementById('preview-contents');

editor.hooks.chain('onPreviewRefresh', function() {

thmCounter.num = 0;

excsCounter.num = 0;

_.each(previewContentsElt.querySelectorAll('[class^="latex_"]'), function(elt) {

var key = elt.className.match(/^latex_(\S+)/)[1];

var environment = environmentMap[key];

if(!environment) return;

var title = environment.title;

if(environment.counter) {

environment.counter.num++;

title += ' ' + environment.counter.num;

elt.id = key + ':' + environment.counter.num;

}

elt.querySelector('.latex_title').innerHTML = title + '.';

});

};

userCustom.onReady = function () {

var style = [

'.latex_thm, .latex_lem, .latex_cor, .latex_defn, .latex_prop, .latex_rem, .latex_claim {',

' font-style:italic;',

' display: block;',

' margin:15px 0;',

'}',

'.latex_prob, .latex_examp, .latex_excs, .latex_proof {',

' font-style:normal;',

' margin: 10px 0;',

' display: block;',

'}',

'.latex_title {',

' float:left;',

' font-weight:bold;',

' padding-right: 10px;',

'}',

'.latex_proofend {',

' float:right;',

'}',

].join('\n');

$("head").append($('<style type="text/css">').html(style));

};

可以非常容易的写出定理等环境: 例如/begin{thm}.../end{thm}, 可以看到与TeX的写法略有不同.

下面我利用WinEdt的正则表达式, 将上述/begin{thm}.../end{thm}转换为标准的\begin{thm}...\end{thm}.
设置如图所示, 然后点击Replace All即可.

需要注意的是WinEdt默认的就是非贪婪(non-greedy)模式, 这与传统的RegEx是不同的.

利用WinEdt的Active String减少中文错别字

10/30/2015vanabel Leave a Comment

我们写中文文章时, 时不时把由和有, 以下和一下写混淆. 其实我们可以利用WinEdt提供的Active String宏自动更正.

首先, 打开Options->Options Interfaces...->Delimiters, Active Strings, Abbreviations...->Active Strings, 作为例子, 找到如下代码

STRING="Lamda"
  BEFORE=1
  START_FILTER="\"
  END_FILTER="~Alpha"
  ENABLED=1
  MODE_FILTER="TeX"
  MACRO="[BeginGroup;Backspace(2);Ins('bda');EndGroup;]"

STRING="Lamda"

BEFORE=1

START_FILTER="\"

END_FILTER="~Alpha"

ENABLED=1

MODE_FILTER="TeX"

MACRO="[BeginGroup;Backspace(2);Ins('bda');EndGroup;]"

在其后添加

STRING="一下"
  ENABLED=1
  MODE_FILTER="TEX"
  MACRO="[BeginGroup;Backspace(2);Ins('以下');EndGroup;]"

STRING="流行"
  ENABLED=1
  MODE_FILTER="TEX"
  MACRO="[BeginGroup;Backspace(2);Ins('流形');EndGroup;]"

STRING="我们由"
  ENABLED=1
  MODE_FILTER="TEX"
  MACRO="[BeginGroup;Backspace(1);Ins('有');EndGroup;]"

STRING="一下"

ENABLED=1

MODE_FILTER="TEX"

MACRO="[BeginGroup;Backspace(2);Ins('以下');EndGroup;]"

STRING="流行"

ENABLED=1

MODE_FILTER="TEX"

MACRO="[BeginGroup;Backspace(2);Ins('流形');EndGroup;]"

STRING="我们由"

ENABLED=1

MODE_FILTER="TEX"

MACRO="[BeginGroup;Backspace(1);Ins('有');EndGroup;]"

最后, 右击该文件, 在弹出菜单中点击Load Script (F9).

SumatraPDF反向搜索设置

09/07/2015vanabel 1 Comment

所谓的反向搜索是指, 双击pdf能够返回到编辑器对应于双击的地方.

WinEdt设置

对于CteX套装的WinEdt, 我们只需要添加如下参数到PdfViewer(如图):

"%!H\CTeX\ctex\bin\SumatraPDF.exe" -inverse-search "\"%B\winedt.exe\" \"[Open(|%%f|);SelPar(%%l,8)]\""

1	"%!H\CTeX\ctex\bin\SumatraPDF.exe" -inverse-search "\"%B\winedt.exe\" \"[Open(\|%%f\|);SelPar(%%l,8)]\""

Gvim

在你的_vimrc文件里面添加

let g:Tex_ViewRule_pdf = 'SumatraPDF -reuse-instance -inverse-search "gvim -c \":RemoteOpen +\%l \%f\""'

1	let g:Tex_ViewRule_pdf = 'SumatraPDF -reuse-instance -inverse-search "gvim -c \":RemoteOpen +\%l \%f\""'

Gvim+vimtex插件


" Sumatra PDF
let g:vimtex_view_general_viewer = 'SumatraPDF'
let g:vimtex_view_general_options
  \ = '-reuse-instance -forward-search @tex @line @pdf'
  \ . ' -inverse-search "gvim --servername ' . v:servername
  \ . ' --remote-send \"^<C-\^>^<C-n^>'
  \ . ':drop \%f^<CR^>:\%l^<CR^>:normal\! zzzv^<CR^>'
  \ . ':execute ''drop '' . fnameescape(''\%f'')^<CR^>'
  \ . ':\%l^<CR^>:normal\! zzzv^<CR^>'
  \ . ':call remote_foreground('''.v:servername.''')^<CR^>^<CR^>\""'
      
let g:vimtex_compiler_latexmk_engines = {
      \ '_'                : '-xelatex'
      \}
let g:vimtex_compiler_latexrun_engines = {
      \ '_'                : 'xelatex'
      \}

" Sumatra PDF

let g:vimtex_view_general_viewer = 'SumatraPDF'

let g:vimtex_view_general_options

\ = '-reuse-instance -forward-search @tex @line @pdf'

\ . ' -inverse-search "gvim --servername ' . v:servername

\ . ' --remote-send \"^<C-\^>^<C-n^>'

\ . ':drop \%f^<CR^>:\%l^<CR^>:normal\! zzzv^<CR^>'

\ . ':execute ''drop '' . fnameescape(''\%f'')^<CR^>'

\ . ':\%l^<CR^>:normal\! zzzv^<CR^>'

\ . ':call remote_foreground('''.v:servername.''')^<CR^>^<CR^>\""'

let g:vimtex_compiler_latexmk_engines = {

\ '_' : '-xelatex'

let g:vimtex_compiler_latexrun_engines = {

\ '_' : 'xelatex'

TeXworks

系统自带的texworks不用设置直接支持正向搜索和反向搜索:
正向(tex->PDF):Ctrl+' (Ctrl+单引号, 激活tex窗口)
反向(PDF->tex):Ctrl+' (Ctrl+单引号, 激活PDF窗口)

参考文献

为WinEdt添加自制LaTeX模板

04/10/2015vanabel Leave a Comment

实际上，写作过程中有些重复的东西。为此，我们可以将公共的部分提出来建一个模板文件。然后将其添加到WinEdt中，这样我们就可以直接在新建文档里面找到了。

详细过程如下：

假设你的tex安装目录为：C:\CTEX，首先是把你的模板文件copy到C:\CTEX\WinEdt\Templates\Doc下面，这样WinEdt就可以在相应位置找到该文件了。
打开WinEdt，单击Options->Options Interface, 打开选项交互边侧栏。此时在该边侧栏找到Editor: Mouse,Modes,Defaults... 下的Document Templates, 并单击打开Templates.ini
在你希望显示新模板的位置（我这里是最后, 注意放在[END]之前才有效）添加一条TEMPLATE, 我是首先copy一条AMSart的TEMPLATE 然后修改成这个样子：

TEMPLATE="CTeX: Article"
  MODE="TeX"
  NAME=""
  EXTENSION=".tex"
  FILE_TEMPLATE="%B\Templates\Doc\Chinese_template.tex"
  BEFORE_MACRO=""
  AFTER_MACRO="[NextBullet;ScreenCenterLine;]"

TEMPLATE="CTeX: Article"

MODE="TeX"

NAME=""

EXTENSION=".tex"

FILE_TEMPLATE="%B\Templates\Doc\Chinese_template.tex"

BEFORE_MACRO=""

AFTER_MACRO="[NextBullet;ScreenCenterLine;]"

其中只有两处需要对应修改，一是TEMPLATE="CTeX: Article", 这里CTeX: Article可以修改在新建Document时的显示名字。二是FILE_TEMPLATE="%B\Templates\Doc\Chinese_template.tex" 这里Chinese_template.tex 是我的模板名，你可能需要更改成你在之前copy的到Doc下的模板文件名。

最后附上我的模板文件源码

\documentclass[12pt, hyperref]{ctexart}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%常用宏包%%
%%%%%%%%%%%%
%保留中英文之间的空格
\usepackage{CJKspace}
\usepackage{amsmath,amsthm,amssymb}
\usepackage[a4paper, margin=1in, includeheadfoot]{geometry}
%%交换图
%\usepackage[all,cmtip]{xy}
%%列表
\usepackage{enumerate}
\usepackage{enumitem}
\setlist[enumerate,1]{label={\normalfont(\alph*)}}
\usepackage{graphicx}
\usepackage{caption}
%去掉图1：后冒号
\DeclareCaptionLabelSeparator{twospace}{\ ~}
\captionsetup{labelsep=twospace}
%%列出引用标签, final表示在最终版本中不显示
\usepackage[notref,notcite, final]{showkeys}
%%参考文献排序
\usepackage{cite}
%%参考文献合并到正文
\usepackage{filecontents}
%%超链接, ocgcolorlinks选项表示打印自动是黑白的
\usepackage[ocgcolorlinks]{hyperref}
%%设置书签
\hypersetup{%
    pdfstartview=FitH,
    bookmarksopen=false,
    colorlinks=true,
    linkcolor=blue,
    pdfinfo={
        Title={},%Input your title here
        Subject={},%Input your subject
        Author={},%Your name
        Keywords={},%Your keywords%
        }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%常用设置%%
%%%%%%%%%%%%
\newtheorem{defn}{定义}[section]
\newtheorem{thm}[defn]{定理}
\newtheorem{lem}[defn]{引理}
\newtheorem{cor}[defn]{推论}
\newtheorem{prop}[defn]{命题}
\newtheorem*{rem}{注记}
%%以节编号
\numberwithin{equation}{section}
%%重定义公式写法
\newenvironment{eq}{\equation}{\endequation}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%自定义命令%%
%%%%%%%%%%%%%%
%变小复合函数的圈
\newcommand{\comp}{\raisebox{1pt}{\scalebox{.7}{$\circ$}}}
%%集合
\newcommand{\set}[1]{\left\{#1\right\}}
%%偏导
\newcommand{\pt}{\partial}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%参考文献数据%%
%%%%%%%%%%%%%%%%

%%这里放入google导入的参考文献数据库, 编译需多用一次biblatex
\begin{filecontents}{\jobname.bib}
@book{lebesgue2003leccons,
  title={Le{\c{c}}ons sur l'int{\'e}gration et la recherche des fonctions primitives},
  author={Lebesgue, Henri},
  volume={267},
  year={2003},
  publisher={AMS Bookstore}
}
@article{shoen1976harmonic,
  title={Harmonic maps and the topology of stable hypersurfaces and manifolds with non-negative Ricci curvature},
  author={Shoen, Richard and Yau, Shing Tung},
  journal={Commentarii Mathematici Helvetici},
  volume={51},
  number={1},
  pages={333--341},
  year={1976},
  publisher={Springer}
}
\end{filecontents}



\title{文章题目}
\author{你的名字\&合作者}
\date{\today}
%%合作者地址写法
\newcommand{\Addresses}{{% additional braces for segregating \footnotesize
  \bigskip
  \footnotesize
  R.~Campbell, \textsc{Department of Mathematics, Pennsylvania State University,
    Pittsburgh, Pennsylvania 13593}\par\nopagebreak
  \textit{E-mail address}, R.~Campbell: \texttt{campr@galois.psu.edu}\\
  \medskip
  M.~Dane (Corresponding author), \textsc{Atmospheric Research Station,
    Pala Lundi, Fiji}\par\nopagebreak
  \textit{E-mail address}, M.~Dane: \texttt{DaneMark@@ffr.choice}
}}

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\documentclass[12pt, hyperref]{ctexart}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%常用宏包%%

%%%%%%%%%%%%

%保留中英文之间的空格

\usepackage{CJKspace}

\usepackage{amsmath,amsthm,amssymb}

\usepackage[a4paper, margin=1in, includeheadfoot]{geometry}

%%交换图

%\usepackage[all,cmtip]{xy}

%%列表

\usepackage{enumerate}

\usepackage{enumitem}

\setlist[enumerate,1]{label={\normalfont(\alph*)}}

\usepackage{graphicx}

\usepackage{caption}

%去掉图1：后冒号

\DeclareCaptionLabelSeparator{twospace}{\ ~}

\captionsetup{labelsep=twospace}

%%列出引用标签, final表示在最终版本中不显示

\usepackage[notref,notcite, final]{showkeys}

%%参考文献排序

\usepackage{cite}

%%参考文献合并到正文

\usepackage{filecontents}

%%超链接, ocgcolorlinks选项表示打印自动是黑白的

\usepackage[ocgcolorlinks]{hyperref}

%%设置书签

\hypersetup{%

pdfstartview=FitH,

bookmarksopen=false,

colorlinks=true,

linkcolor=blue,

pdfinfo={

Title={},%Input your title here

Subject={},%Input your subject

Author={},%Your name

Keywords={},%Your keywords%

}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%常用设置%%

%%%%%%%%%%%%

\newtheorem{defn}{定义}[section]

\newtheorem{thm}[defn]{定理}

\newtheorem{lem}[defn]{引理}

\newtheorem{cor}[defn]{推论}

\newtheorem{prop}[defn]{命题}

\newtheorem*{rem}{注记}

%%以节编号

\numberwithin{equation}{section}

%%重定义公式写法

\newenvironment{eq}{\equation}{\endequation}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%自定义命令%%

%%%%%%%%%%%%%%

%变小复合函数的圈

\newcommand{\comp}{\raisebox{1pt}{\scalebox{.7}{$\circ$}}}

%%集合

\newcommand{\set}[1]{\left\{#1\right\}}

%%偏导

\newcommand{\pt}{\partial}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%参考文献数据%%

%%%%%%%%%%%%%%%%

%%这里放入google导入的参考文献数据库, 编译需多用一次biblatex

\begin{filecontents}{\jobname.bib}

@book{lebesgue2003leccons,

title={Le{\c{c}}ons sur l'int{\'e}gration et la recherche des fonctions primitives},

author={Lebesgue, Henri},

volume={267},

year={2003},

publisher={AMS Bookstore}

}

@article{shoen1976harmonic,

title={Harmonic maps and the topology of stable hypersurfaces and manifolds with non-negative Ricci curvature},

author={Shoen, Richard and Yau, Shing Tung},

journal={Commentarii Mathematici Helvetici},

volume={51},

number={1},

pages={333--341},

year={1976},

publisher={Springer}

}

\end{filecontents}

\title{文章题目}

\author{你的名字\&合作者}

\date{\today}

%%合作者地址写法

\newcommand{\Addresses}{{% additional braces for segregating \footnotesize

\bigskip

\footnotesize

R.~Campbell, \textsc{Department of Mathematics, Pennsylvania State University,

Pittsburgh, Pennsylvania 13593}\par\nopagebreak

\textit{E-mail address}, R.~Campbell: \texttt{campr@galois.psu.edu}\\

\medskip

M.~Dane (Corresponding author), \textsc{Atmospheric Research Station,

Pala Lundi, Fiji}\par\nopagebreak

\textit{E-mail address}, M.~Dane: \texttt{DaneMark@@ffr.choice}

}}

1. 如何使用Ctex写中文

写中文最简单的办法就是使用了.

1.1. 定理环境使用

定理 1 (勾股定理).

假设$a,b,c$是直角三角形的三边长, 且$c$为斜边长. 则

\begin{eq}\label{eq:1}

a^2+b^2=c^2.

\end{eq}

公式\eqref{eq:1}就称为勾股定理.

2. 参考文献的示例

这是引用[1]

\Addresses

参考文献

用winedt替换网页Latex为Mathjax \ \ \ 0+ $ \…

08/29/2014vanabel Leave a Comment

用winedt替换网页Latex为Mathjax:

\!\[\(0+{$[" \{\}\\\,\+_\^=():\-'/\."]+AlphaNumeric$}\)\](http://*)

\$\0\$

\!\[$0+{$[" \{\}\\\,\+_\^=():\-'/\."]+AlphaNumeric$}$\](http://*)

\$\0\$

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