2002-04-15 00:12:54 +00:00
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<?xml version="1.0" encoding="iso-8859-1"?>
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2002-06-03 15:06:16 +00:00
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<!-- $Revision: 1.3 $ -->
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2002-04-15 00:12:54 +00:00
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<!-- splitted from ./en/functions/math.xml, last change in rev 1.2 -->
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<refentry id="function.sqrt">
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<refnamediv>
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<refname>sqrt</refname>
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<refpurpose>Square root</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>float</type><methodname>sqrt</methodname>
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<methodparam><type>float</type><parameter>arg</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns the square root of <parameter>arg</parameter>.
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</para>
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2002-06-03 15:06:16 +00:00
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<para>
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<informalexample>
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<programlisting>
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<![CDATA[
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<?php
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// Precision depends on your precision directive
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echo sqrt(9); // 3
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echo sqrt(10); // 3.16227766 ...
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?>
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]]>
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</programlisting>
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</informalexample>
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</para>
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2002-04-15 00:12:54 +00:00
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<para>
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See also <function>pow</function>.
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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:"../../../../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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