mirror of
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037f252e0f
git-svn-id: https://svn.php.net/repository/phpdoc/es/trunk@297968 c90b9560-bf6c-de11-be94-00142212c4b1
68 lines
1.7 KiB
XML
68 lines
1.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 96c9d88bad9a7d7d44bfb7f26c226df7ee9ddf26 Maintainer: lboshell Status: ready -->
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<refentry xml:id="function.pi" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>pi</refname>
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<refpurpose>Obtener valor de pi</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>float</type><methodname>pi</methodname>
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<void/>
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</methodsynopsis>
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<simpara>
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Devuelve una aproximación de pi. El valor <type>float</type> devuelto
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tiene una precisión basada en la directiva <link
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linkend="ini.precision">precision</link> en &php.ini;, cuyo valor
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predeterminado es <literal>14</literal>. Asimismo, es posible usar la
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constantio <constant>M_PI</constant>, la cual produce el mismo resultado
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que <function>pi</function>.
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</simpara>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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El valor de pi como flotante.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Ejemplo de <function>pi</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo pi(); // 3.1415926535898
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echo M_PI; // 3.1415926535898
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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