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authorTobias Klauser <tklauser@distanz.ch>2008-01-27 11:37:44 +0100
committerTobias Klauser <tklauser@xenon.tklauser.home>2008-01-27 11:37:44 +0100
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+<TITLE>atan2</TITLE>
+<body bgcolor="#ffffcc">
+<hr>
+<pre>
+
+
+
+<h3>ATAN2(3) Linux Programmer's Manual ATAN2(3)
+</h3>
+
+<h3>NAME
+</h3> atan2 - arc tangent function of two variables
+
+<h3>SYNOPSIS
+</h3> #include &lt;math.h&gt;
+
+ double atan2(double y, double x);
+
+<h3>DESCRIPTION
+</h3> The atan2() 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.
+
+<h3>RETURN VALUE
+</h3> The atan2() function returns the result in radians, which
+ is between -PI and PI (inclusive).
+
+<h3>CONFORMING TO
+</h3> SVID 3, POSIX, BSD 4.3, ISO 9899
+
+</pre>
+<hr>
+<h3>SEE ALSO
+</h3><p>
+<a href=acos.htm>acos</a>,
+<a href=asin.htm>asin</a>,
+<a href=atan.htm>atan</a>,
+<a href=cos.htm>cos</a>,
+<a href=sin.htm>sin</a>,
+<a href=tan.htm>tan</a>,
+<pre>
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+ June 8, 1993 1
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+ </pre>
+<P>
+<hr>
+<p>
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