mirror of
https://github.com/php/doc-ja.git
synced 2026-03-26 08:02:15 +01:00
72 lines
1.8 KiB
XML
72 lines
1.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
<!-- EN-Revision: 761d72245071f89a626903c9bcdc6aaff1252d54 Maintainer: hirokawa Status: ready -->
|
|
<!-- CREDITS: takagi,mumumu -->
|
|
<refentry xml:id="function.pi" xmlns="http://docbook.org/ns/docbook">
|
|
<refnamediv>
|
|
<refname>pi</refname>
|
|
<refpurpose>円周率の値を得る</refpurpose>
|
|
</refnamediv>
|
|
<refsect1 role="description">
|
|
&reftitle.description;
|
|
<methodsynopsis>
|
|
<type>float</type><methodname>pi</methodname>
|
|
<void/>
|
|
</methodsynopsis>
|
|
<simpara>
|
|
円周率の近似値を返します。
|
|
また、定数 <constant>M_PI</constant> を使用することで
|
|
<function>pi</function> とまったく同じ結果を取得することも可能です。
|
|
</simpara>
|
|
</refsect1>
|
|
|
|
<refsect1 role="parameters">
|
|
&reftitle.parameters;
|
|
&no.function.parameters;
|
|
</refsect1>
|
|
|
|
<refsect1 role="returnvalues">
|
|
&reftitle.returnvalues;
|
|
<para>
|
|
円周率の値を不動小数点数で返します。
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 role="examples">
|
|
&reftitle.examples;
|
|
<para>
|
|
<example>
|
|
<title><function>pi</function> の例</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
|
|
-->
|