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pi.xml
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72 lines (67 loc) · 1.69 KB
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<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: 761d72245071f89a626903c9bcdc6aaff1252d54 Maintainer: hholzgra Status: ready -->
<!-- Reviewed: no -->
<refentry xml:id="function.pi" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>pi</refname>
<refpurpose>Liefert den Wert von Pi</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>float</type><methodname>pi</methodname>
<void/>
</methodsynopsis>
<simpara>
Die Funktion gibt einen Näherungswert von Pi zurück. Sie können auch die
Konstante <constant>M_PI</constant> verwenden, die das gleiche Resultat
liefert wie <function>pi</function>.
</simpara>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Der Wert von Pi als <type>float</type>.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>pi</function>-Beispiel</title>
<programlisting role="php">
<![CDATA[
<?php
echo pi(), PHP_EOL; // 3.1415926535898
echo M_PI, PHP_EOL; // 3.1415926535898
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->