mirror of
https://github.com/php/doc-ru.git
synced 2026-04-26 00:38:06 +02:00
Mikhail Alferov
71 lines
1.8 KiB
XML
71 lines
1.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: 338f05c722ce829ee78f14c25b2e7333ea350cf9 Maintainer: shein Status: ready -->
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<!-- Reviewed: no -->
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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>Возвращает число Пи</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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Возвращает приблизительное значение числа Пи.
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Константа <constant>M_PI</constant> даёт идентичный результат.
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</simpara>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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&no.function.parameters;
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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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Возвращает приблизительное значение числа Пи в виде числа с плавающей точкой (<type>float</type>).
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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>Пример использования функции <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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