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<?xml version="1.0" encoding="UTF-8"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) INRIA
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
-->
<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="en" xml:id="scaling">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>scaling</refname>
<refpurpose> affine transformation of a set of points</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>xy1=scaling(xy,factor,[orig])</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term>xy1</term>
<listitem>
<para>matrice of size (2,.).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>xy</term>
<listitem>
<para>matrice of size (2,.).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>factor</term>
<listitem>
<para>real scalar, coefficient of the linear transformation.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>orig</term>
<listitem>
<para>shift vector; default value is [0;0].</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para><literal>scaling</literal> performs an affine transformation on the set of points defined
by the coordinates <literal>xy</literal>:</para>
<para><literal>xy1(:,i) = factor * xy(:,i) + orig</literal>.</para>
</refsection>
</refentry>
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