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	<title>男单 618 &#187; TikZ</title>
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		<title>TikZ一例&#8211;简单流程图</title>
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		<pubDate>Fri, 04 Feb 2011 02:00:41 +0000</pubDate>
		<dc:creator>amao</dc:creator>
				<category><![CDATA[LaTeX相关]]></category>
		<category><![CDATA[TikZ]]></category>

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		<description><![CDATA[下面那个大括号找了半天。 123456789101112131415161718192021222324252627282930313233\usetikzlibrary{arrows} \usetikzlibrary{decorations.pathreplacing} % Define block styles \tikzstyle{decision} = [diamond, draw, fill=blue!20, text width=4.5em, text badly centered, node distance=3cm, inner sep=0pt] \tikzstyle{block} = [rectangle, draw, fill=blue!20, text width=2em, text centered, rounded corners, minimum height=4em] \tikzstyle{line} = [draw, -latex'] %\tikzstyle{cloud} = [draw, ellipse,fill=red!20, node distance=3cm, % &#160; &#160;minimum height=2em] \begin{tikzpicture}[scale=0.7, node distance = 2.0cm, auto] \node <a href="http://www.ai7.org/wp/html/863.html"> read more <span class="meta-nav">&#187;</span></a><table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p style="text-align: center;"><img class="aligncenter" src="http://i.imgur.com/sZoUX.png" alt="" width="427" height="164" /><br />
下面那个大括号找了半天。</p>
<div class="codecolorer-container latex vibrant" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><table cellspacing="0" cellpadding="0"><tbody><tr><td style="padding:5px;text-align:center;color:#888888;background-color:#EEEEEE;border-right: 1px solid #9F9F9F;font: normal 12px/1.4em Monaco, Lucida Console, monospace;"><div>1<br />2<br />3<br />4<br />5<br />6<br />7<br />8<br />9<br />10<br />11<br />12<br />13<br />14<br />15<br />16<br />17<br />18<br />19<br />20<br />21<br />22<br />23<br />24<br />25<br />26<br />27<br />28<br />29<br />30<br />31<br />32<br />33<br /></div></td><td><div class="latex codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #800000; font-weight: normal;">\usetikzlibrary</span><span style="color: #E02020; ">{</span><span style="color: #2020C0; font-weight: normal;">arrows<span style="color: #E02020; ">}</span><br />
<span style="color: #800000; font-weight: normal;">\usetikzlibrary</span>{decorations.pathreplacing</span><span style="color: #E02020; ">}</span><br />
<br />
<span style="color: #2C922C; font-style: italic;">% Define block styles</span><br />
<span style="color: #800000; font-weight: normal;">\tikzstyle</span><span style="color: #E02020; ">{</span><span style="color: #2020C0; font-weight: normal;">decision<span style="color: #E02020; ">}</span> = <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">diamond, draw, fill=blue!20,<br />
text width=4.5em, text badly centered, node distance=3cm, inner sep=0pt</span><span style="color: #E02020; ">]</span><br />
<span style="color: #800000; font-weight: normal;">\tikzstyle</span><span style="color: #E02020; ">{</span>block<span style="color: #E02020; ">}</span> = <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">rectangle, draw, fill=blue!20,<br />
text width=2em, text centered, rounded corners, minimum height=4em</span><span style="color: #E02020; ">]</span><br />
<span style="color: #800000; font-weight: normal;">\tikzstyle</span>{line</span><span style="color: #E02020; ">}</span> = <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">draw, -latex'</span><span style="color: #E02020; ">]</span><br />
<span style="color: #2C922C; font-style: italic;">%\tikzstyle{cloud} = [draw, ellipse,fill=red!20, node distance=3cm,</span><br />
<span style="color: #2C922C; font-style: italic;">% &nbsp; &nbsp;minimum height=2em]</span><br />
<br />
<span style="color: #C00000; font-weight: normal;">\begin</span><span style="color: #E02020; ">{</span><span style="color: #2020C0; font-weight: normal;"><span style="color: #0000D0; font-weight: normal;">tikzpicture</span><span style="color: #E02020; ">}[</span><span style="color: #C08020; font-weight: normal;">scale=0.7, node distance = 2.0cm, auto</span><span style="color: #E02020; ">]</span><br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">block</span><span style="color: #E02020; ">]</span> (problem) <span style="color: #E02020; ">{</span>实<span style="color: #E02020; ">\\</span> 际<span style="color: #E02020; ">\\</span> 问<span style="color: #E02020; ">\\</span> 题<span style="color: #E02020; ">}</span>;<br />
<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">block, right of=problem</span><span style="color: #E02020; ">]</span> (model) <span style="color: #E02020; ">{</span>数<span style="color: #E02020; ">\\</span> 学<span style="color: #E02020; ">\\</span> 模<span style="color: #E02020; ">\\</span> 型<span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\path</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">line</span><span style="color: #E02020; ">]</span> (problem) -- (model);<br />
<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">block, right of=model</span><span style="color: #E02020; ">]</span> (method) <span style="color: #E02020; ">{</span>数值计算方法<span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\path</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">line</span><span style="color: #E02020; ">]</span> (model) -- (method);<br />
<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">block, right of=method</span><span style="color: #E02020; ">]</span> (prog) <span style="color: #E02020; ">{</span>程<span style="color: #E02020; ">\\</span> 序<span style="color: #E02020; ">\\</span> 设<span style="color: #E02020; ">\\</span> 计<span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\path</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">line</span><span style="color: #E02020; ">]</span> (method) -- (prog);<br />
<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">block, right of=prog</span><span style="color: #E02020; ">]</span> (comp) <span style="color: #E02020; ">{</span>上<span style="color: #E02020; ">\\</span> 机<span style="color: #E02020; ">\\</span> 求<span style="color: #E02020; ">\\</span> 解<span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\path</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">line</span><span style="color: #E02020; ">]</span> (prog) -- (comp);<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">decorate, decoration={brace, mirror}, very thick, blue</span><span style="color: #E02020; ">]</span> (0,-2) -- (3,-2);<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (1.5,-2.8) node <span style="color: #E02020; ">{</span>应用数学<span style="color: #E02020; ">}</span>;<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">decorate, decoration={brace, mirror}, very thick, blue</span><span style="color: #E02020; ">]</span> (5.5,-2) -- (11.5,-2);<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (8.5,-2.8) node <span style="color: #E02020; ">{</span>计算数学<span style="color: #E02020; ">}</span>;<br />
<span style="color: #C00000; font-weight: normal;">\end</span><span style="color: #E02020; ">{</span><span style="color: #0000D0; font-weight: normal;">tikzpicture</span></span><span style="color: #E02020; ">}</span></div></td></tr></tbody></table></div>
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		<title>TikZ一例&#8211;内公切线</title>
		<link>http://www.ai7.org/wp/html/719.html</link>
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		<pubDate>Wed, 17 Feb 2010 11:42:32 +0000</pubDate>
		<dc:creator>amao</dc:creator>
				<category><![CDATA[LaTeX相关]]></category>
		<category><![CDATA[TikZ]]></category>

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		<description><![CDATA[一下午就画这么个东西： 12345678910111213141516171819202122232425262728293031323334353637\usetikzlibrary{calc} \begin{tikzpicture} \def\L{8} \coordinate (m) at (0.5*\L,0); \draw (m) node[below] {$m$}; \draw[-&#38;gt;] (0,0) -- (1.2*\L,0); \node [circle,draw] (i) at (0,0) [minimum size=3cm] {}; \draw (i) node[below left] {$i$}; \node [circle,draw] (j) at (\L,0) [minimum size=3cm] {}; \draw (j) node[below right] {$j$}; \coordinate (a) at (tangent cs:node=i,point={(m)},solution=1); \coordinate (c) at (tangent cs:node=i,point={(m)},solution=2); \coordinate (b) at <a href="http://www.ai7.org/wp/html/719.html"> read more <span class="meta-nav">&#187;</span></a><table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>一下午就画这么个东西：</p>
<p style="text-align: center;"><img class="aligncenter" title="公切线" src="http://i.imgur.com/nDo5e.png" alt="" width="480" height="287" /></p>
<div class="codecolorer-container latex vibrant" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><table cellspacing="0" cellpadding="0"><tbody><tr><td style="padding:5px;text-align:center;color:#888888;background-color:#EEEEEE;border-right: 1px solid #9F9F9F;font: normal 12px/1.4em Monaco, Lucida Console, monospace;"><div>1<br />2<br />3<br />4<br />5<br />6<br />7<br />8<br />9<br />10<br />11<br />12<br />13<br />14<br />15<br />16<br />17<br />18<br />19<br />20<br />21<br />22<br />23<br />24<br />25<br />26<br />27<br />28<br />29<br />30<br />31<br />32<br />33<br />34<br />35<br />36<br />37<br /></div></td><td><div class="latex codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #800000; font-weight: normal;">\usetikzlibrary</span><span style="color: #E02020; ">{</span><span style="color: #2020C0; font-weight: normal;">calc<span style="color: #E02020; ">}</span><br />
<span style="color: #C00000; font-weight: normal;">\begin</span><span style="color: #E02020; ">{</span><span style="color: #0000D0; font-weight: normal;">tikzpicture</span><span style="color: #E02020; ">}</span><br />
<span style="color: #E02020; ">\</span><a href="http://www.golatex.de/wiki/index.php?title=%5Cdef"><span style="color: #800000;">def</span></a><span style="color: #800000; font-weight: normal;">\L</span><span style="color: #E02020; ">{</span>8<span style="color: #E02020; ">}</span><br />
<span style="color: #800000; font-weight: normal;">\coordinate</span> (m) at (0.5*<span style="color: #800000; font-weight: normal;">\L</span>,0);<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (m) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$m$</span><span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">-&amp;gt;</span></span><span style="color: #E02020; ">]</span> (0,0) -- (1.2*<span style="color: #800000; font-weight: normal;">\L</span>,0);<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">circle,draw</span><span style="color: #E02020; ">]</span> (i) at (0,0) <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">minimum size=3cm</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{}</span>;<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (i) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below left</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$i$</span><span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\node</span> <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">circle,draw</span><span style="color: #E02020; ">]</span> (j) at (<span style="color: #800000; font-weight: normal;">\L</span>,0) <span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">minimum size=3cm</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{}</span>;<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (j) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below right</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$j$</span><span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\coordinate</span> (a) at (tangent cs:node=i,point=<span style="color: #E02020; ">{</span>(m)<span style="color: #E02020; ">}</span>,solution=1);<br />
<span style="color: #800000; font-weight: normal;">\coordinate</span> (c) at (tangent cs:node=i,point=<span style="color: #E02020; ">{</span>(m)<span style="color: #E02020; ">}</span>,solution=2);<br />
<span style="color: #800000; font-weight: normal;">\coordinate</span> (b) at (tangent cs:node=j,point=<span style="color: #E02020; ">{</span>(m)<span style="color: #E02020; ">}</span>,solution=1);<br />
<span style="color: #800000; font-weight: normal;">\coordinate</span> (d) at (tangent cs:node=j,point=<span style="color: #E02020; ">{</span>(m)<span style="color: #E02020; ">}</span>,solution=2);<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (a) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">above</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$A$</span><span style="color: #E02020; ">}</span> -- (i.center)-- (c) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$C$</span><span style="color: #E02020; ">}</span> --<br />
(d) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">above</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$D$</span><span style="color: #E02020; ">}</span> -- (j.center)-- (b) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$B$</span><span style="color: #E02020; ">}</span> -- cycle;<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">dashed</span><span style="color: #E02020; ">]</span> (0,0) -- (0,0.5*<span style="color: #800000; font-weight: normal;">\L</span>);<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">dashed</span><span style="color: #E02020; ">]</span> (<span style="color: #800000; font-weight: normal;">\L</span>,0) -- (<span style="color: #800000; font-weight: normal;">\L</span>,0.5*<span style="color: #800000; font-weight: normal;">\L</span>);<br />
<span style="color: #800000; font-weight: normal;">\node</span> (l) at (0.5*<span style="color: #800000; font-weight: normal;">\L</span>,0.45*<span style="color: #800000; font-weight: normal;">\L</span>) <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$l_{ij}$</span><span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">&amp;lt; -</span></span><span style="color: #E02020; ">]</span> (0,0.45*<span style="color: #800000; font-weight: normal;">\L</span>) -- (l);<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">-&amp;gt;</span></span><span style="color: #E02020; ">]</span> (l) -- (<span style="color: #800000; font-weight: normal;">\L</span>,0.45*<span style="color: #800000; font-weight: normal;">\L</span>);<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span> (m) +(0:8mm) arc (0:22:8mm);<br />
<span style="color: #800000; font-weight: normal;">\path</span> (m) +(8:1.2cm) node<span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$<span style="color: #800000; font-weight: normal;">\alpha</span>_{ij}$</span><span style="color: #E02020; ">}</span>;<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">dashed</span><span style="color: #E02020; ">]</span> (m) +(<span style="color: #8020E0; font-weight: normal;">$(0,0)-(a)$</span>) -- (0,0);<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">-&amp;gt;</span></span><span style="color: #E02020; ">]</span> (0,0) +(0:18mm) arc (0:-22:18mm);<br />
<span style="color: #800000; font-weight: normal;">\path</span> (0,0) +(-8:22mm) node<span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$<span style="color: #800000; font-weight: normal;">\alpha</span>_{ij}$</span><span style="color: #E02020; ">}</span>;<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">-&amp;gt;</span></span><span style="color: #E02020; ">]</span> (0,0) -- (3,-2) node<span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">below right</span><span style="color: #E02020; ">]</span> <span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$<span style="color: #800000; font-weight: normal;">\overrightarrow</span>{v}_{ij}$</span><span style="color: #E02020; ">}</span>;<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #E02020; "><span style="color: #C08020; font-weight: normal;">-&amp;gt;</span></span><span style="color: #E02020; ">]</span> (0,0) +(0:8mm) arc (0:-32:8mm);<br />
<span style="color: #800000; font-weight: normal;">\path</span> (0,0) +(-18:12mm) node<span style="color: #E02020; ">{</span><span style="color: #8020E0; font-weight: normal;">$<span style="color: #800000; font-weight: normal;">\beta</span>_{ij}$</span><span style="color: #E02020; ">}</span>;<br />
<br />
<span style="color: #800000; font-weight: normal;">\draw</span><span style="color: #E02020; ">[</span><span style="color: #C08020; font-weight: normal;">dashed</span><span style="color: #E02020; ">]</span> (m) +(<span style="color: #8020E0; font-weight: normal;">$(0,0)-(c)$</span>) -- (0,0);<br />
<span style="color: #C00000; font-weight: normal;">\end</span><span style="color: #E02020; ">{</span><span style="color: #0000D0; font-weight: normal;">tikzpicture</span></span><span style="color: #E02020; ">}</span></div></td></tr></tbody></table></div>
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		</item>
		<item>
		<title>CaR，GCLC，TikZ</title>
		<link>http://www.ai7.org/wp/html/488.html</link>
		<comments>http://www.ai7.org/wp/html/488.html#comments</comments>
		<pubDate>Sat, 15 Aug 2009 02:33:44 +0000</pubDate>
		<dc:creator>amao</dc:creator>
				<category><![CDATA[LaTeX相关]]></category>
		<category><![CDATA[免费软件推荐]]></category>
		<category><![CDATA[软件]]></category>
		<category><![CDATA[C.a.R. GCLC]]></category>
		<category><![CDATA[CaR]]></category>
		<category><![CDATA[latex]]></category>
		<category><![CDATA[PGF]]></category>
		<category><![CDATA[TikZ]]></category>

		<guid isPermaLink="false">http://www.ai7.org/wp/?p=488</guid>
		<description><![CDATA[C.a.R.和GCLC都可以算做类似几何画板的所谓动态几何软件，这里是维基百科上关于这类软件的一个比较。那张表并不完整，至少缺了是否跨平台这一栏。而这两个软件都具备以下特点： 免费 跨平台 支持LaTeX 另外，C.a.R.可以将动态结果输出至网页形式，只要装了Java的机器，可以直接在浏览器中操作。GCLC则有机器证明的功能，并可以将做图脚本输出为TikZ格式。 而TikZ是LaTeX上的一个宏包，可与Beamer很好的配合。 缺点是这三个软件都非常小众，无论国内还是国外，用户似乎都不多。 8月15日补充： 关于TikZ/PGF的好站（强力推荐）：http://www.texample.net<table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>C.a.R.和GCLC都可以算做类似几何画板的所谓动态几何软件，<a href="http://zh.wikipedia.org/wiki/%E5%8B%95%E6%85%8B%E5%B9%BE%E4%BD%95%E8%BB%9F%E9%AB%94" target="_blank">这里</a>是维基百科上关于这类软件的一个比较。那张表并不完整，至少缺了是否跨平台这一栏。而这两个软件都具备以下特点：
<ol>	
<li>免费</li>
<p>	
<li>跨平台</li>
<p>	
<li>支持LaTeX</li>
<p></ol>
<p>另外，C.a.R.可以将动态结果输出至网页形式，只要装了Java的机器，可以直接在浏览器中操作。GCLC则有机器证明的功能，并可以将做图脚本输出为TikZ格式。</p>
<p>而TikZ是LaTeX上的一个宏包，可与Beamer很好的配合。</p>
<p>缺点是这三个软件都非常小众，无论国内还是国外，用户似乎都不多。</p>
<p>8月15日补充：</p>
<p>关于TikZ/PGF的好站（强力推荐）：<a href="http://www.texample.net" target="_blank">http://www.texample.net</a></p>
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