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<?xml version="1.0" encoding="UTF-8"?>
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* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
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* Copyright (C) 2008 - INRIA
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* This file must be used under the terms of the CeCILL.
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* This source file is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at
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* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
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<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" version="5.0-subset Scilab" xml:lang="ja" xml:id="givens">
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<refname>givens</refname>
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<refpurpose>ギブンス変換</refpurpose>
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<synopsis>U=givens(xy)
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<para>実数または複素数の要素数2の列ベクトル</para>
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<para>2x2 ユニタリ行列</para>
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<para>実数または複素数の要素数2の列ベクトル</para>
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<title>説明</title><literal>xy = [x;y]</literal>として
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<literal>U= givens(x, y)</literal> または <literal>U = givens(xy)</literal>
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は,次のような<literal>2</literal>x<literal>2</literal> の
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ユニタリ行列 <literal>U</literal> を返します:
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<literal>U*xy=[r;0]=c</literal>.
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<literal>givens(x,y)</literal> および <literal>givens([x;y])</literal> は等価であることに
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<programlisting role="example"><![CDATA[
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<refsection role="see also">
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<simplelist type="inline">
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<link linkend="qr">qr</link>