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	<title>Шаблон:U2dUniDiag - История изменений</title>
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	<updated>2026-10-22T23:30:56Z</updated>
	<subtitle>История изменений этой страницы в вики</subtitle>
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		<id>https://xn--80aecvaldz.xn--80ahdrnmvk.xn--p1ai/w/ru/index.php?title=%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:U2dUniDiag&amp;diff=3154&amp;oldid=prev</id>
		<title>Frolov: Новая страница: «:&lt;math&gt; U = \begin{bmatrix}  1 &amp; u_{12}  &amp; 0 &amp;    \cdots &amp; \cdots &amp; 0 \\  0 &amp; 1  &amp; u_{23}&amp;  \cdots &amp; \cdots &amp; 0 \\  0 &amp;  0 &amp; 1  &amp;     \cdots &amp; \cdots &amp; 0 \\  \vdo…»</title>
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		<updated>2015-12-18T15:46:44Z</updated>

		<summary type="html">&lt;p&gt;Новая страница: «:&amp;lt;math&amp;gt; U = \begin{bmatrix}  1 &amp;amp; u_{12}  &amp;amp; 0 &amp;amp;    \cdots &amp;amp; \cdots &amp;amp; 0 \\  0 &amp;amp; 1  &amp;amp; u_{23}&amp;amp;  \cdots &amp;amp; \cdots &amp;amp; 0 \\  0 &amp;amp;  0 &amp;amp; 1  &amp;amp;     \cdots &amp;amp; \cdots &amp;amp; 0 \\  \vdo…»&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;:&amp;lt;math&amp;gt;&lt;br /&gt;
U = \begin{bmatrix}&lt;br /&gt;
 1 &amp;amp; u_{12}  &amp;amp; 0 &amp;amp;    \cdots &amp;amp; \cdots &amp;amp; 0 \\&lt;br /&gt;
 0 &amp;amp; 1  &amp;amp; u_{23}&amp;amp;  \cdots &amp;amp; \cdots &amp;amp; 0 \\&lt;br /&gt;
 0 &amp;amp;  0 &amp;amp; 1  &amp;amp;     \cdots &amp;amp; \cdots &amp;amp; 0 \\&lt;br /&gt;
 \vdots &amp;amp; \vdots &amp;amp; \ddots &amp;amp; \ddots &amp;amp; \ddots &amp;amp; 0 \\&lt;br /&gt;
 0 &amp;amp; \cdots &amp;amp; \cdots &amp;amp; 0 &amp;amp; 1  &amp;amp; u_{n-1 n} \\&lt;br /&gt;
 0 &amp;amp; \cdots &amp;amp; \cdots &amp;amp; 0 &amp;amp; 0  &amp;amp; 1 \\&lt;br /&gt;
\end{bmatrix}&lt;br /&gt;
&amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Frolov</name></author>
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