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<?xml version="1.0" encoding="UTF-8"?>
<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="testmatrix">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>testmatrix</refname>
<refpurpose> generate special matrices, such as Hilbert, Franck</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>[y]=testmatrix(name,n)</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term>name</term>
<listitem>
<para>a character string</para>
</listitem>
</varlistentry>
<varlistentry>
<term>n</term>
<listitem>
<para>integers, matrix size</para>
</listitem>
</varlistentry>
<varlistentry>
<term>y</term>
<listitem>
<para> <literal>n</literal> x <literal>m</literal> matrix</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
Create some particular matrices
</para>
<variablelist>
<varlistentry>
<term>testmatrix('magi',n)</term>
<listitem>
<para>returns a magic square of size <literal>n</literal> .</para>
</listitem>
</varlistentry>
<varlistentry>
<term>testmatrix('frk',n)</term>
<listitem>
<para>returns the Franck matrix :</para>
</listitem>
</varlistentry>
<varlistentry>
<term>testmatrix('hilb',n)</term>
<listitem>
<para>is the inverse of the nxn Hilbert matrix <literal> (Hij= 1/(i+j-1))</literal>.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
</refentry>
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