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dany2018 / extrema deb

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extrema / usr / share / extrema / Help / Functions / atan2.htm

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<TITLE>ATAN2</TITLE>
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<P><A NAME="atan2"></A>
<font size="+3" color="green"><B>ATAN2</B></font></P>
<P>
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<TD width="15%" valign="top"><B>Syntax</B>:</TD>
<TD width="85%"><CODE>
vout = ATAN2( v1, v2 )</CODE>
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<p>
 The <CODE>ATAN2(v1,v2)</CODE> function returns the
 Arc Tangent of <CODE>v1/v2</CODE>, with
 -&pi; <CODE>&lt; ATAN2(v1,v2) &le;</CODE> &pi;.</p>
<p>
<ul>
<li>If <CODE>v1 &gt; 0</CODE>, the result is positive.</li>
<li>If <CODE>v1 = 0</CODE>, the result is zero if
 <CODE>v2 &gt; 0</CODE> and &pi; if
 <CODE>v2 &lt; 0</CODE>.</li>
<li>If <CODE>v1 &lt; 0</CODE>, the result is negative. If the value of
 the second argument is zero, the absolute value of the result is &pi;<CODE>/2</CODE>.</li>
</ul></p>
<p>
 Both arguments must not have the value zero.</p>
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dany2018 / extrema deb

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