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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) {date_debut_1}-{date_fin_1} - {organisme 1} {auteur 1}
* Copyright (C) {date_debut_2}-{date_fin_2} - {organisme 2} {auteur 2}
* ...
*
* 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
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-->
<refentry version="5.0-subset Scilab" xml:id="hat" 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>hat</refname>
<refpurpose>(^) exponentiation</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Seqncia de Chamamento</title>
<synopsis>A^b</synopsis>
</refsynopsisdiv>
<refsection>
<title>Descrio</title>
<para>Exponenciao de matrizes ou vetores por um vetor constante.</para>
<para>Se <literal>A</literal> um vetor ou uma matriz retangular, a
exponenciao feita elemento a elemento no sentido usual.</para>
<para>Para matrizes quadradas, a exponenciao feita no sentido
matricial.</para>
<para>Para matrizes de booleanos, polinmios ou razes de polinmios, o
expoente deve ser um inteiro</para>
<refsection>
<title>Observaes</title>
<para><literal>123.^b</literal> interpretado como<literal>
(123).^b</literal>. Em tais casos, o ponto parte do operador, no do
nmero.</para>
<para>Para dois nmeros reais ou complexos <literal>x1</literal> e
<literal>x2</literal> , o valor de <literal>x1^x2</literal> o "valor
principal" determinado por <literal>x1^x2 =
exp(x2*log(x1))</literal>.</para>
</refsection>
</refsection>
<refsection>
<title>Exemplos</title>
<programlisting role="example"><![CDATA[
2^4
(-0.5)^(1/3)
[1 2;2 4]^(1+%i)
s=poly(0,"s");
[1 2 s]^4
[s 1;1 s]^(-1)
]]></programlisting>
</refsection>
<refsection>
<title> Ver Tambm </title>
<simplelist type="inline">
<member><link linkend="exp">exp</link></member>
<member><link linkend="inv">inv</link></member>
</simplelist>
</refsection>
</refentry>
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