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	<id>https://murray.cds.caltech.edu/index.php?action=history&amp;feed=atom&amp;title=Ncsbook%2Fnotation</id>
	<title>Ncsbook/notation - Revision history</title>
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	<updated>2026-06-28T18:38:03Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Ncsbook/notation&amp;diff=9669&amp;oldid=prev</id>
		<title>Murray at 22:57, 31 July 2009</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Ncsbook/notation&amp;diff=9669&amp;oldid=prev"/>
		<updated>2009-07-31T22:57:32Z</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;
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				&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 22:57, 31 July 2009&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-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&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;{{ncsbook menu|preface|intro}}&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;=== 30 Jul 09 telecon ===&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;=== 30 Jul 09 telecon ===&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;The following notational items arose in the 30 Jul 09 telecon:&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;The following notational items arose in the 30 Jul 09 telecon:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Murray</name></author>
	</entry>
	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Ncsbook/notation&amp;diff=9667&amp;oldid=prev</id>
		<title>Murray at 22:55, 31 July 2009</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Ncsbook/notation&amp;diff=9667&amp;oldid=prev"/>
		<updated>2009-07-31T22:55:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;=== 30 Jul 09 telecon ===&lt;br /&gt;
The following notational items arose in the 30 Jul 09 telecon:&lt;br /&gt;
* Think through covariance matrices versus LQ costs&lt;br /&gt;
* Think through Kalman filter gain - K&lt;br /&gt;
* Notation: use \mathbb E for expectation&lt;br /&gt;
* Notation: covariance - \Sigma_{&lt;br /&gt;
* Notation: dx/dt = Ax + B u for continuous derivative&lt;br /&gt;
* Notation: label equations as a group&lt;br /&gt;
* Notation: * for messy expressions&lt;br /&gt;
* Notation: sort out notation for transpose (probably ^T)&lt;br /&gt;
* Lyapunov and Ricatti operators: h, g, g^n, h^n&lt;br /&gt;
* Time horizon = N or T&lt;br /&gt;
* Notation: \gamma = Bernoulli process&lt;/div&gt;</summary>
		<author><name>Murray</name></author>
	</entry>
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