<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../style.css">
<title>
Gambas Documentation - ATan
</title>
</head>
<table class="none" width="100%" cellpadding="0" cellspacing="0" border="0">
<tr><td align="left">
<font size="-1">
<a href="../../help+en"><img class="flag" alt="Home" border="0" src="../../img/lang/en.png" align="center"></a>&nbsp;
<a href="../lang+en">Up</a>&nbsp;
<a href="assignop+en">Previous</a>&nbsp;
<a href="atan2+en">Next</a>&nbsp;
</td></tr></table>
<div class="notab">
<h1>
ATan
</h1>
<div class="black"><font size="-2"><b>Syntax</b></font></div>
<pre class="syntax"><u>Value</u> <b>= ATan (</b> <u>Number</u> AS Float <b>)</b> AS Float
<u>Value</u> <b>= Atn (</b> <u>Number</u> AS Float <b>)</b> AS Float</pre><p>

Computes the arc-tangent of a number.
<p>
<div class="gray"><font size="-2"><b>Example</b></font></div>
<pre class="example">PRINT ATan(0.5)
<hr>0.463647609001</pre>
<p>
There is another function <a href="ang+en">Ang</a> (alias <a href="atan2+en">ATan2</a>) which takes two arguments and returns the angle correctly over 4 quadrants.
<p>
<hr><b>See also</b><br>
<a href="../cat/trigo+en">Trigonometric Functions</a>&nbsp; <a href="ang+en">Ang</a>&nbsp; <a href="atan2+en">ATan2</a>&nbsp;

</div>
</body>
</html>

