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	<id>https://jsxgraph.org/wiki/index.php?action=history&amp;feed=atom&amp;title=Centroid</id>
	<title>Centroid - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://jsxgraph.org/wiki/index.php?action=history&amp;feed=atom&amp;title=Centroid"/>
	<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;action=history"/>
	<updated>2026-04-06T16:36:00Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7228&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:57, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7228&amp;oldid=prev"/>
		<updated>2021-04-12T15:57:03Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:57, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l38&quot;&gt;Line 38:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 38:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.label.autoPosition = true;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.label.autoPosition = true;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.text.useMathJax = true;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.text.useMathJax = true;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.text.fontSize = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;20&lt;/del&gt;;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;JXG.Options.text.fontSize = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;24&lt;/ins&gt;;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var board = JXG.JSXGraph.initBoard(&amp;quot;jxgbox&amp;quot;, {boundingbox: [-5,5,5,-5], showCopyright:false, showNavigation:false});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var board = JXG.JSXGraph.initBoard(&amp;quot;jxgbox&amp;quot;, {boundingbox: [-5,5,5,-5], showCopyright:false, showNavigation:false});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p &lt;/del&gt;= board.create(&#039;point&#039;, [-3,-3], {name:&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p&lt;/del&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p1 &lt;/ins&gt;= board.create(&#039;point&#039;, [-3,-3], {name:&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\\(p_1\\)&lt;/ins&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;q &lt;/del&gt;= board.create(&#039;point&#039;, [0, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2&lt;/del&gt;], {name:&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;q&lt;/del&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p2 &lt;/ins&gt;= board.create(&#039;point&#039;, [0, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;3&lt;/ins&gt;], {name:&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\\(p_2\\)&lt;/ins&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;r &lt;/del&gt;= board.create(&#039;point&#039;, [3, -&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;3&lt;/del&gt;], {name:&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;r&lt;/del&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p3 &lt;/ins&gt;= board.create(&#039;point&#039;, [3, -&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;4&lt;/ins&gt;], {name:&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\\(p_3\\)&lt;/ins&gt;&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pq &lt;/del&gt;= board.create(&#039;arrow&#039;, [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;q&lt;/del&gt;], {withLabel: true, name:&#039;\\(\\vec{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pq&lt;/del&gt;}\\)&#039;, label:{position: &#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;top&lt;/del&gt;&#039;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;parse&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;false&lt;/del&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;l1 &lt;/ins&gt;= board.create(&#039;arrow&#039;, [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p1&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p2&lt;/ins&gt;], {withLabel: true, name:&#039;\\(\\vec{&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;v&lt;/ins&gt;}\\)&#039;, label:{position: &#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;bot&lt;/ins&gt;&#039;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;offset&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[-25, 0]&lt;/ins&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;qr &lt;/del&gt;= board.create(&#039;arrow&#039;, [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;q&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;r&lt;/del&gt;], {withLabel: true, name:&#039;\\(\\vec{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;qr&lt;/del&gt;}\\)&#039;, label:{position: &#039;top&#039;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;l2 &lt;/ins&gt;= board.create(&#039;arrow&#039;, [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p1&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p3&lt;/ins&gt;], {withLabel: true, name:&#039;\\(\\vec{&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;w&lt;/ins&gt;}\\)&#039;, label:{position: &#039;top&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, offset:[25, -25]&lt;/ins&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pr &lt;/del&gt;= board.create(&#039;arrow&#039;, [&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;r&lt;/del&gt;], {&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;withLabel&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;true&lt;/del&gt;, name:&#039;\\(\\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vec&lt;/del&gt;{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pr}&lt;/del&gt;\\)&#039;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;label:&lt;/del&gt;{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;position: &lt;/del&gt;&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;top&lt;/del&gt;&#039;}, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;lastArrow: &lt;/del&gt;{&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;type: 4&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;size&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;8}&lt;/del&gt;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;l3 &lt;/ins&gt;= board.create(&#039;arrow&#039;, [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p2&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p3&lt;/ins&gt;], {&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var m1 = board.create(&#039;midpoint&#039;, [p2, p3], {name&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;\\(m_1\\)&#039;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var m2 = board.create(&#039;midpoint&#039;, [p1, p3]&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{&lt;/ins&gt;name:&#039;\\(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m_2&lt;/ins&gt;\\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;)&#039;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var m3 = board.create(&#039;midpoint&#039;, [p1, p2], &lt;/ins&gt;{&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;name:&#039;\\(m_3&lt;/ins&gt;\\)&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var s1 = board.create(&#039;segment&#039;, [p1, m1]&lt;/ins&gt;, {&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var s2 = board.create(&lt;/ins&gt;&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;segment&lt;/ins&gt;&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, [p2, m2], {&lt;/ins&gt;}&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;);&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var s3 = board.create(&#039;segment&#039;, [p3, m3]&lt;/ins&gt;, {&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;});&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;var s = board.create(&#039;intersection&#039;, [s1, s2]&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{name&lt;/ins&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;\\(s\\)&#039;&lt;/ins&gt;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/source&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/source&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Examples]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Examples]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Geometry]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Geometry]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7227&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:56, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7227&amp;oldid=prev"/>
		<updated>2021-04-12T15:56:23Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:56, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l17&quot;&gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&amp;#039;arrow&amp;#039;, [p1, p2], {withLabel: true, name:&amp;#039;\\(\\vec{v}\\)&amp;#039;, label:{position: &amp;#039;bot&amp;#039;, offset:[-25, 0]}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&amp;#039;arrow&amp;#039;, [p1, p2], {withLabel: true, name:&amp;#039;\\(\\vec{v}\\)&amp;#039;, label:{position: &amp;#039;bot&amp;#039;, offset:[-25, 0]}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;, offset:[&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;0&lt;/del&gt;, -25]}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;, offset:[&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;25&lt;/ins&gt;, -25]}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7226&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:56, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7226&amp;oldid=prev"/>
		<updated>2021-04-12T15:56:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:56, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;bot&#039;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;bot&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, offset:[-25, 0]&lt;/ins&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, offset:[0, -25]&lt;/ins&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7225&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:55, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7225&amp;oldid=prev"/>
		<updated>2021-04-12T15:55:34Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:55, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;bot&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, parse: false&lt;/del&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;bot&#039;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, parse: false&lt;/del&gt;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&#039;arrow&#039;, [p1, p3], {withLabel: true, name:&#039;\\(\\vec{w}\\)&#039;, label:{position: &#039;top&#039;}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7224&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:55, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7224&amp;oldid=prev"/>
		<updated>2021-04-12T15:55:17Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:55, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ulft&lt;/del&gt;&#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;bot&lt;/ins&gt;&#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7223&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:54, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7223&amp;oldid=prev"/>
		<updated>2021-04-12T15:54:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:54, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;top&lt;/del&gt;&#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&#039;arrow&#039;, [p1, p2], {withLabel: true, name:&#039;\\(\\vec{v}\\)&#039;, label:{position: &#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ulft&lt;/ins&gt;&#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&amp;#039;arrow&amp;#039;, [p2, p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7222&amp;oldid=prev</id>
		<title>A WASSERMANN at 15:54, 12 April 2021</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7222&amp;oldid=prev"/>
		<updated>2021-04-12T15:54:38Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:54, 12 April 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l18&quot;&gt;Line 18:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 18:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&amp;#039;arrow&amp;#039;, [p1, p2], {withLabel: true, name:&amp;#039;\\(\\vec{v}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l1 = board.create(&amp;#039;arrow&amp;#039;, [p1, p2], {withLabel: true, name:&amp;#039;\\(\\vec{v}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&#039;arrow&#039;, [p3&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, p2&lt;/del&gt;], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var l3 = board.create(&#039;arrow&#039;, [&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p2, &lt;/ins&gt;p3], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m1 = board.create(&#039;midpoint&#039;, [p2, p3], {name:&#039;\\(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p_1&lt;/del&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m1 = board.create(&#039;midpoint&#039;, [p2, p3], {name:&#039;\\(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m_1&lt;/ins&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m2 = board.create(&#039;midpoint&#039;, [p1, p3], {name:&#039;\\(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p_2&lt;/del&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m2 = board.create(&#039;midpoint&#039;, [p1, p3], {name:&#039;\\(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m_2&lt;/ins&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m3 = board.create(&#039;midpoint&#039;, [p1, p2], {name:&#039;\\(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;p_3&lt;/del&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var m3 = board.create(&#039;midpoint&#039;, [p1, p2], {name:&#039;\\(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m_3&lt;/ins&gt;\\)&#039;});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var s1 = board.create(&amp;#039;segment&amp;#039;, [p1, m1], {});&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;var s1 = board.create(&amp;#039;segment&amp;#039;, [p1, m1], {});&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
	<entry>
		<id>https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7221&amp;oldid=prev</id>
		<title>A WASSERMANN: Created page with &quot;&lt;html&gt;   &lt;script type=&quot;text/javascript&quot; src=&quot;/distrib/MathJax/MathJax.js&quot;&gt;&lt;/script&gt; &lt;/html&gt;  Centroid in affine space  &lt;jsxgraph width=&quot;500&quot; height=&quot;500&quot;&gt; JXG.Options.label.au...&quot;</title>
		<link rel="alternate" type="text/html" href="https://jsxgraph.org/wiki/index.php?title=Centroid&amp;diff=7221&amp;oldid=prev"/>
		<updated>2021-04-12T15:53:45Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;lt;html&amp;gt;   &amp;lt;script type=&amp;quot;text/javascript&amp;quot; src=&amp;quot;/distrib/MathJax/MathJax.js&amp;quot;&amp;gt;&amp;lt;/script&amp;gt; &amp;lt;/html&amp;gt;  Centroid in affine space  &amp;lt;jsxgraph width=&amp;quot;500&amp;quot; height=&amp;quot;500&amp;quot;&amp;gt; JXG.Options.label.au...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;html&amp;gt;&lt;br /&gt;
  &amp;lt;script type=&amp;quot;text/javascript&amp;quot; src=&amp;quot;/distrib/MathJax/MathJax.js&amp;quot;&amp;gt;&amp;lt;/script&amp;gt;&lt;br /&gt;
&amp;lt;/html&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Centroid in affine space&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jsxgraph width=&amp;quot;500&amp;quot; height=&amp;quot;500&amp;quot;&amp;gt;&lt;br /&gt;
JXG.Options.label.autoPosition = true;&lt;br /&gt;
JXG.Options.text.useMathJax = true;&lt;br /&gt;
JXG.Options.text.fontSize = 24;&lt;br /&gt;
&lt;br /&gt;
var board = JXG.JSXGraph.initBoard(&amp;quot;jxgbox&amp;quot;, {boundingbox: [-5,5,5,-5], showCopyright:false, showNavigation:false});&lt;br /&gt;
&lt;br /&gt;
var p1 = board.create(&amp;#039;point&amp;#039;, [-3,-3], {name:&amp;#039;\\(p_1\\)&amp;#039;});&lt;br /&gt;
var p2 = board.create(&amp;#039;point&amp;#039;, [0, 3], {name:&amp;#039;\\(p_2\\)&amp;#039;});&lt;br /&gt;
var p3 = board.create(&amp;#039;point&amp;#039;, [3, -4], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;br /&gt;
&lt;br /&gt;
var l1 = board.create(&amp;#039;arrow&amp;#039;, [p1, p2], {withLabel: true, name:&amp;#039;\\(\\vec{v}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;br /&gt;
var l2 = board.create(&amp;#039;arrow&amp;#039;, [p1, p3], {withLabel: true, name:&amp;#039;\\(\\vec{w}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;br /&gt;
var l3 = board.create(&amp;#039;arrow&amp;#039;, [p3, p2], {});&lt;br /&gt;
&lt;br /&gt;
var m1 = board.create(&amp;#039;midpoint&amp;#039;, [p2, p3], {name:&amp;#039;\\(p_1\\)&amp;#039;});&lt;br /&gt;
var m2 = board.create(&amp;#039;midpoint&amp;#039;, [p1, p3], {name:&amp;#039;\\(p_2\\)&amp;#039;});&lt;br /&gt;
var m3 = board.create(&amp;#039;midpoint&amp;#039;, [p1, p2], {name:&amp;#039;\\(p_3\\)&amp;#039;});&lt;br /&gt;
&lt;br /&gt;
var s1 = board.create(&amp;#039;segment&amp;#039;, [p1, m1], {});&lt;br /&gt;
var s2 = board.create(&amp;#039;segment&amp;#039;, [p2, m2], {});&lt;br /&gt;
var s3 = board.create(&amp;#039;segment&amp;#039;, [p3, m3], {});&lt;br /&gt;
&lt;br /&gt;
var s = board.create(&amp;#039;intersection&amp;#039;, [s1, s2], {name:&amp;#039;\\(s\\)&amp;#039;});&lt;br /&gt;
&lt;br /&gt;
&amp;lt;/jsxgraph&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== The underlying JavaScript code ===&lt;br /&gt;
&lt;br /&gt;
&amp;lt;source lang=&amp;quot;javascript&amp;quot;&amp;gt;&lt;br /&gt;
JXG.Options.label.autoPosition = true;&lt;br /&gt;
JXG.Options.text.useMathJax = true;&lt;br /&gt;
JXG.Options.text.fontSize = 20;&lt;br /&gt;
&lt;br /&gt;
var board = JXG.JSXGraph.initBoard(&amp;quot;jxgbox&amp;quot;, {boundingbox: [-5,5,5,-5], showCopyright:false, showNavigation:false});&lt;br /&gt;
&lt;br /&gt;
var p = board.create(&amp;#039;point&amp;#039;, [-3,-3], {name:&amp;#039;p&amp;#039;});&lt;br /&gt;
var q = board.create(&amp;#039;point&amp;#039;, [0, 2], {name:&amp;#039;q&amp;#039;});&lt;br /&gt;
var r = board.create(&amp;#039;point&amp;#039;, [3, -3], {name:&amp;#039;r&amp;#039;});&lt;br /&gt;
&lt;br /&gt;
var pq = board.create(&amp;#039;arrow&amp;#039;, [p, q], {withLabel: true, name:&amp;#039;\\(\\vec{pq}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;, parse: false}, lastArrow: {type: 4, size: 8}});&lt;br /&gt;
var qr = board.create(&amp;#039;arrow&amp;#039;, [q, r], {withLabel: true, name:&amp;#039;\\(\\vec{qr}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;}, lastArrow: {type: 4, size: 8}});&lt;br /&gt;
var pr = board.create(&amp;#039;arrow&amp;#039;, [p, r], {withLabel: true, name:&amp;#039;\\(\\vec{pr}\\)&amp;#039;, label:{position: &amp;#039;top&amp;#039;}, lastArrow: {type: 4, size: 8}});&lt;br /&gt;
&amp;lt;/source&amp;gt;&lt;br /&gt;
[[Category:Examples]]&lt;br /&gt;
[[Category:Geometry]]&lt;/div&gt;</summary>
		<author><name>A WASSERMANN</name></author>
	</entry>
</feed>