File: atan2

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<h3>atan2() function</h3>
Returns arcustangens of y/x using the signs of the two 
arguments to determine the quadrant of the result



<p><h4>Syntax</h4>
     atan2(<i>real</i>, <i>real</i>)</p>

<p><h4>Arguments</h4>
<i>real</i> &rarr; y coordinate difference<br>
<i>real</i> &rarr; x coordinate difference</p>

<p><h4>Example</h4>
     atan2(1.0, 1.732) &rarr; 0.523611477769969</p>