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<?xml version="1.0" encoding="UTF-8"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2007-2008 - 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="hypermatrices">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>hypermatrices</refname>
<refpurpose> Scilab object, N dimensional matrices in Scilab</refpurpose>
</refnamediv>
<refsection>
<title>Description</title>
<para>
Hypermatrix type allows to manipulate multidimensional arrays</para>
<para>
They can be defined by extension of 2D matrices as follows
a=[1 2;3 4];a(:,:,2)=rand(2,2)</para>
<para>
or directly using <literal>hypermat</literal> function</para>
<para>
Entries can be real or complex numbers, polynomials,
rationals, strings, booleans.</para>
<para>
Hypermatrices are <literal>mlists</literal>:
<literal>mlist(['hm','dims','entries'],sz,v)</literal> where <literal>sz</literal> is the row
vector of dimensions and <literal>v</literal> the column vector of entries (first
dimension are stored first)</para>
<para>NOTES: The number of dimension of hypermatrices with right-most sizes equal to
1 are automatically reduced. An hypermatrix with only two dimensions is
automatically changed to a regular matrix (type 1).</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
a(1,1,1,1:2)=[1 2]
a=[1 2;3 4];a(:,:,2)=rand(2,2)
a(1,1,:)
size(a)
a(:,:,1) //dimensionnality reduction
type(a(:,:,1))
[a a]
]]></programlisting>
</refsection>
<refsection>
<title>See Also</title>
<simplelist type="inline">
<member>
<link linkend="hypermat">hypermat</link>
</member>
<member>
<link linkend="zeros">zeros</link>
</member>
<member>
<link linkend="ones">ones</link>
</member>
<member>
<link linkend="grand">grand</link>
</member>
<member>
<link linkend="matrix">matrix</link>
</member>
</simplelist>
</refsection>
</refentry>
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