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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<refentry xml:id="function.fmod" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>fmod</refname>
<refpurpose>Returns the floating point remainder (modulo) of the division
of the arguments</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>float</type><methodname>fmod</methodname>
<methodparam><type>float</type><parameter>x</parameter></methodparam>
<methodparam><type>float</type><parameter>y</parameter></methodparam>
</methodsynopsis>
<para>
Returns the floating point remainder of dividing the dividend
(<parameter>x</parameter>) by the divisor (<parameter>y</parameter>).
The reminder (<varname>r</varname>) is defined as: x = i * y + r, for
some integer <varname>i</varname>. If <parameter>y</parameter> is
non-zero, <varname>r</varname> has the same sign as
<parameter>x</parameter> and a magnitude less than the magnitude of
<parameter>y</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>x</parameter></term>
<listitem>
<para>
The dividend
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>y</parameter></term>
<listitem>
<para>
The divisor
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The floating point remainder of
<parameter>x</parameter>/<parameter>y</parameter>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Using <function>fmod</function></title>
<programlisting role="php">
<![CDATA[
<?php
$x = 5.7;
$y = 1.3;
$r = fmod($x, $y);
// $r equals 0.5, because 4 * 1.3 + 0.5 = 5.7
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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