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8<TITLE>QUATMultiply</TITLE>
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11<H1>QUATMultiply</H1>
12
13<H2>Syntax</H2>
14<dl><dd><pre class="construction">
15#include &lt;revolution/mtx.h&gt;
16
17void C_QUATMultiply ( const Quaternion* p, const Quaternion* q, Quaternion* pq );
18void PSQUATMultiply ( const Quaternion* p, const Quaternion* q, Quaternion* pq );
19
20#define QUATMultiply C_QUATMultiply // for debug build
21#define QUATMultiply PSQUATMultiply // for nondebug build
22</pre></dd></dl>
23
24<H2>Arguments</H2>
25<TABLE class="arguments" border="1" >
26  <TBODY>
27    <TR>
28<TH>p</TH>
29<TD>Pointer to the first <a href="../Structures/Quaternion_QuaternionPtr.html"><code>quaternion</code></a> to multiply.</TD>
30    </TR>
31    <TR>
32<TH>q</TH>
33<TD>Pointer to the second <A href="../structures/Quaternion_QuaternionPtr.html">quaternion</A> to multiply.</TD>
34    </TR>
35    <TR>
36<TH>pq</TH>
37<TD>Pointer to the resultant <A href="../structures/Quaternion_QuaternionPtr.html">quaternion</A>.( Contains the result of ( <SPAN class="argument">p</SPAN> x <SPAN class="argument">q</SPAN> ).&nbsp;Acceptable if <SPAN class="argument">pq</SPAN> = <SPAN class="argument">p</SPAN> or <SPAN class="argument">pq</SPAN> = <SPAN class="argument">q</SPAN>.</TD>
38    </TR>
39  </TBODY>
40</TABLE>
41
42<H2>Return Values</H2>
43<P>None.</P>
44
45<H2>Description</H2>
46<P>Multiplies two quaternions (<SPAN class="argument">p</SPAN> x <SPAN class="argument">q</SPAN>) and stores the result in <SPAN class="argument">pq</SPAN>. Note that the arguments <SPAN class="argument">p</SPAN> and <SPAN class="argument">q</SPAN> are not variable when using this operation.</P>
47<P>During a debug build, <code>QUATMultiply</code> is interpreted as <code>C_QUATMultiply</code>, which is a normal C language version. During a non-debug build for a Broadway processor, the paired-singles equivalent of this function, <code>PSQUATMultiply</code>, will be automatically substituted. You can also call each of <code>C_QUATMultiply/PSQUATMultiply</code> explicitly.</P>
48
49<H2>See Also</H2>
50<P class="reference">
51<A href="../structures/Quaternion_QuaternionPtr.html">Quaternion, QuaternionPtr</A>,
52<A href="QUATDivide.html">QUATDivide</A>
53</P>
54
55<H2>Revision History</H2>
56<P>
572006/03/01 Initial version.<br>
58</P>
59
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