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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) INRIA - Serge Steer
*
* 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 version="5.0-subset Scilab" xml:id="eval3d" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns5="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:db="http://docbook.org/ns/docbook">
<info>
<pubdate>$LastChangedDate$</pubdate>
</info>
<refnamediv>
<refname>eval3d</refname>
<refpurpose>valores de uma funo em um grid</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Seqncia de Chamamento</title>
<synopsis>[z]=eval3d(fun,x,[y])</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parmetros</title>
<variablelist>
<varlistentry>
<term>fun</term>
<listitem>
<para>funo que aceita vetores como argumentos </para>
</listitem>
</varlistentry>
<varlistentry>
<term>x,y</term>
<listitem>
<para>2 vetores de tamanhos (1,n1) e (1,n2). (valor padro para
<literal>y</literal> : <literal>y=x</literal>).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>z</term>
<listitem>
<para>matriz de tamanho (n1,n2).</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Descrio</title>
<para>Esta funo retorna uma matriz <literal>z(n1,n2)</literal>.
<literal>z(i,j)=fun(x(i),y(j))</literal>. Se a funo
<literal>fun</literal> no aceitar argumentos do tipo vetor, use a
primitiva <literal>feval</literal>.</para>
</refsection>
<refsection>
<title>Exemplos</title>
<programlisting role="example"><![CDATA[
x=-5:5;y=x;
deff('[z]=f(x,y)',['z= x.*y']);
z=eval3d(f,x,y);
plot3d(x,y,z);
deff('[z]=f(x,y)',['z= x*y']);
z=feval(x,y,f);
plot3d(x,y,z);
]]></programlisting>
</refsection>
<refsection>
<title>Ver Tambm</title>
<simplelist type="inline">
<member><link linkend="feval">feval</link></member>
</simplelist>
</refsection>
<refsection>
<title>Autor</title>
<para>Steer S.</para>
</refsection>
</refentry>
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