php-doc-en/reference/stats/functions/stats-stat-factorial.xml

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<refentry xml:id="function.stats-stat-factorial" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>stats_stat_factorial</refname>
  <refpurpose>Returns the factorial of an integer</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="procedural">
   <type>float</type><methodname>stats_stat_factorial</methodname>
   <methodparam><type>int</type><parameter>n</parameter></methodparam>
  </methodsynopsis>
  <para>
   Returns the factorial of an integer, <parameter>n</parameter>.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>n</parameter></term>
    <listitem>
     <para>
      An integer
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The factorial of <parameter>n</parameter>.
  </para>
 </refsect1>

 <!--
 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   When does this function issue E_* level errors, and/or throw exceptions.
  </para>
 </refsect1>
 -->

 <!--
 <refsect1 role="unicode">
  &reftitle.unicode;
  <para>
   Information specific to unicode, from the PHP 6 changes.
  </para>
 </refsect1>
 -->

 <!--
 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>Enter the version of change here</entry>
      <entry>
       Describe the change
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>
 -->

 <!--
 <refsect1 role="examples">
  &reftitle.examples;
  <example xml:id="function-name.example.basic">
   <title><function>function-name</function> example</title>
   <para>
     Any text that describes the purpose of the example, or what
     goes on in the example should be here. (Inside the <example> tag, not out).
   </para>
   <programlisting role="php">
<![CDATA[
<?php
if ($anexample === true) {
   echo 'Use the PEAR Coding standards';
}
if ($thereisoutput === 'and it is multiple lines') {
   echo 'Use a screen like we did below';
}
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
Use the PEAR Coding standards
Use a screen like we did below
]]>
   </screen>
  </example>
 </refsect1>
 -->

 <!--
 <refsect1 role="notes">
  &reftitle.notes;
  <caution>
   <para>
    Any notes that don't fit anywhere else should go here.
    90% of the time, notes, warnings or cautions are better placed in the
    parameters section. Consider that before using this section!
   </para>
  </caution>
  &note.language-construct;
  &note.not-bin-safe;
  &note.registerglobals;
 </refsect1>
 -->

 <!--
 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member><function>somefunc</function></member>
   <member><function>another_func</function></member>
   <member>The <link linkend="something">something appendix</link></member>
  </simplelist>
 </refsect1>
 -->

</refentry>

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