CVS update: php3/doc/functions
| From: | rasmus | Date: | Tue, 03 Nov 1998 18:10:17 +0000 |
| Subject: | CVS update: php3/doc/functions | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-2151@lists.php.net to get a copy of this message | ||
Date: Tuesday November 3, 1998 @ 13:10
Author: rasmus
Update of /repository/php3/doc/functions
In directory asf:/u2/tmp/cvs-serv1851/doc/functions
Modified Files:
math.sgml
Log Message:
Document atan2 function
Index: php3/doc/functions/math.sgml
diff -c php3/doc/functions/math.sgml:1.17 php3/doc/functions/math.sgml:1.18
*** php3/doc/functions/math.sgml:1.17 Sun Nov 1 16:03:28 1998
--- php3/doc/functions/math.sgml Tue Nov 3 13:10:17 1998
***************
*** 123,128 ****
--- 123,152 ----
</refentry>
+ <refentry id="function.atan2">
+ <refnamediv>
+ <refname>Atan2</refname>
+ <refpurpose>arc tangent of two variables</refpurpose>
+ </refnamediv>
+ <refsect1>
+ <title>Description</title>
+ <funcsynopsis>
+ <funcdef>float <function>atan2</function></funcdef>
+ <paramdef>float <parameter>y</parameter></paramdef>
+ <paramdef>float <parameter>x</parameter></paramdef>
+ </funcsynopsis>
+ <simpara>
+ This function calculates the arc tangent of the two variables x and y. It is similar to
calculating the
+ arc tangent of y / x, except that the signs of both arguments are used to determine the
quadrant of the result.
+ <simpara>
+ The function returns the result in radians, which is between -PI and PI (inclusive).
+ <para>
+ See also <function>acos</function> and <function>atan</function>.
+
+ </refsect1>
+ </refentry>
+
+
<refentry id="function.bindec">
<refnamediv>
<refname>BinDec</refname>
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