<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.deg2rad">
 <refnamediv>
  <refname>deg2rad</refname>
  <refpurpose>
   Converts the number in degrees to the radian equivalent
  </refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>float</type><methodname>deg2rad</methodname>
   <methodparam><type>float</type><parameter>num</parameter></methodparam>
  </methodsynopsis>
  <para>
   This function converts <parameter>num</parameter> from degrees
   to the radian equivalent.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>num</parameter></term>
     <listitem>
      <para>
       Angular value in degrees 
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The radian equivalent of <parameter>num</parameter>
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>deg2rad</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php

echo deg2rad(45); // 0.785398163397
var_dump(deg2rad(45) === M_PI_4); // bool(true)

?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>rad2deg</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>
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