118 lines
3.8 KiB
HTML
118 lines
3.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>carg</title>
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<body bgcolor="white">
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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<basefont size="3"> <a name="carg"></a> <a name="tag_03_49"></a><!-- carg -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_49_01"></a>NAME</h4>
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<blockquote>carg, cargf, cargl - complex argument functions</blockquote>
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<h4><a name="tag_03_49_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/complex.h.html">complex.h</a>><br>
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<br>
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double carg(double complex</tt> <i>z</i><tt>);<br>
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float cargf(float complex</tt> <i>z</i><tt>);<br>
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long double cargl(long double complex</tt> <i>z</i><tt>);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_49_03"></a>DESCRIPTION</h4>
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<blockquote>
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<div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
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border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
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requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
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the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div>
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<p>These functions shall compute the argument (also called phase angle) of <i>z</i>, with a branch cut along the negative real
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axis.</p>
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</blockquote>
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<h4><a name="tag_03_49_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>These functions shall return the value of the argument in the interval [-<img src="../images/pi.gif" border="0">, +<img
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src="../images/pi.gif" border="0">].</p>
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</blockquote>
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<h4><a name="tag_03_49_05"></a>ERRORS</h4>
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<blockquote>
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<p>No errors are defined.</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_49_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_49_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_49_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_49_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_49_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="cimag.html"><i>cimag</i>()</a> , <a href="conj.html"><i>conj</i>()</a> , <a href="cproj.html"><i>cproj</i>()</a> , the
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Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/complex.h.html"><i><complex.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_49_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 6. Derived from the ISO/IEC 9899:1999 standard.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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UNIX ® is a registered Trademark of The Open Group.<br>
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POSIX ® is a registered Trademark of The IEEE.<br>
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