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14<h1 align="left">FX_AsinIdx <img src="../image/NTR.gif"align="middle"><img src="../image/TWL.gif" align="middle"></H1>
15<H2>Syntax</H2>
16
17<dl>
18  <dd>
19<PRE><CODE>#include &lt;nitro/fx/fx_trig.h&gt;
20
21u16 FX_AsinIdx(fx32 x);</CODE></PRE>
22  </dd>
23</dl><h2>Arguments</h2>
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25<table border="1" width="100%">
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27    <tr>
28      <TD width="109"><em><strong><font face="Courier New">x</font></strong></em></TD>
29      <TD width="593"><code><A href="fx32.html">fx32</A></code>-format fixed-point decimal.</TD>
30    </tr>
31  </table>
32<h2>Return Values</h2>
33<p>Arcsine of <em><strong><code>x</code></strong></em></p>
34<H2>Description</H2>
35<P>This determines the arcsine of <em><strong><code>x</code></strong></em>. The results are returned in a <code>u16</code> format. The units of the result are equal to 1/65536 of a circle (2 &pi; radians). (Example: A right angle would be 16384.) Internally, a SinCos table is referenced. The argument must take a value between -1 and 1.</P>
36
37<h2>See Also</h2>
38<P><CODE><A href="FX_Atan.html">FX_Atan</A>, <A href="FX_Atan2.html">FX_Atan2</A>, <A href="FX_Atan2Idx.html">FX_Atan2Idx</A>, <A href="FX_AcosIdx.html">FX_AcosIdx</A></CODE></P>
39<H2>Revision History</H2>
40<P>2007/01/18 Initial version.</P>
41<hr><p>CONFIDENTIAL</p></body>
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