1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997)
by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
* with significant contributions from:
Jens Lippman, Marek Rouchal, Martin Wilck and others -->
<HTML>
<HEAD>
<TITLE>SLA_MXM - Multiply Matrices</TITLE>
<META NAME="description" CONTENT="SLA_MXM - Multiply Matrices">
<META NAME="keywords" CONTENT="sun67">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso_8859_1">
<LINK REL="STYLESHEET" HREF="sun67.css">
<LINK REL="next" HREF="node132.html">
<LINK REL="previous" HREF="node130.html">
<LINK REL="up" HREF="node13.html">
<LINK REL="next" HREF="node132.html">
</HEAD>
<BODY >
<BR> <HR>
<A NAME="tex2html1736" HREF="node132.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A>
<A NAME="tex2html1734" HREF="node13.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A>
<A NAME="tex2html1728" HREF="node130.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0"
SRC="contents_motif.gif"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1737" HREF="node132.html">SLA_MXV - Apply 3D Rotation</A>
<BR>
<B>Up:</B> <A NAME="tex2html1735" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A>
<BR>
<B> Previous:</B> <A NAME="tex2html1729" HREF="node130.html">SLA_MOON - Approx Moon Pos/Vel</A>
<BR> <HR> <P>
<P><!--End of Navigation Panel-->
<H2><A NAME="SECTION0004118000000000000000"> </A><A NAME="xref_SLA_MXM"> </A><A NAME="SLA_MXM"> </A>
<BR>
SLA_MXM - Multiply <IMG WIDTH="39" HEIGHT="25" ALIGN="MIDDLE" BORDER="0"
SRC="img18.gif"
ALT="$3\times3$"> Matrices
</H2>
<DL>
<DT><STRONG>ACTION:</STRONG>
<DD>Product of two <IMG WIDTH="39" HEIGHT="25" ALIGN="MIDDLE" BORDER="0"
SRC="img18.gif"
ALT="$3\times3$"> matrices (single precision).
<DT><STRONG>CALL:</STRONG>
<DD><TT>CALL sla_MXM (A, B, C)</TT>
<P> </DL>
<P> <DL>
<DT><STRONG>GIVEN:</STRONG>
<DD>
<BR>
<TABLE CELLPADDING=3>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>A</EM></TD>
<TH ALIGN="LEFT"><B>R(3,3)</B></TH>
<TH ALIGN="LEFT" NOWRAP>matrix <B>A</B></TH>
</TR>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>B</EM></TD>
<TD ALIGN="LEFT"><B>R(3,3)</B></TD>
<TD ALIGN="LEFT" NOWRAP>matrix <B>B</B></TD>
</TR>
</TABLE></DL>
<P> <DL>
<DT><STRONG>RETURNED:</STRONG>
<DD>
<BR>
<TABLE CELLPADDING=3>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>C</EM></TD>
<TH ALIGN="LEFT"><B>R(3,3)</B></TH>
<TH ALIGN="LEFT" NOWRAP>matrix result: <B>A</B><IMG WIDTH="15" HEIGHT="25" ALIGN="MIDDLE" BORDER="0"
SRC="img84.gif"
ALT="$\times$"><B>B</B></TH>
</TR>
</TABLE></DL>
<P> <DL>
<DT><STRONG>NOTE:</STRONG>
<DD>To comply with the ANSI Fortran 77 standard, A, B and C must
be different arrays. The routine is, in fact, coded
so as to work properly on the VAX and many other systems even
if this rule is violated, something that is <B>not</B>, however,
recommended.
</DL>
<BR> <HR>
<A NAME="tex2html1736" HREF="node132.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A>
<A NAME="tex2html1734" HREF="node13.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A>
<A NAME="tex2html1728" HREF="node130.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0"
SRC="contents_motif.gif"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1737" HREF="node132.html">SLA_MXV - Apply 3D Rotation</A>
<BR>
<B>Up:</B> <A NAME="tex2html1735" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A>
<BR>
<B> Previous:</B> <A NAME="tex2html1729" HREF="node130.html">SLA_MOON - Approx Moon Pos/Vel</A>
<BR> <HR> <P>
<P><!--End of Navigation Panel-->
<ADDRESS>
<I>SLALIB --- Positional Astronomy Library<BR>Starlink User Note 67<BR>P. T. Wallace<BR>12 October 1999<BR>E-mail:ptw@star.rl.ac.uk</I>
</ADDRESS>
</BODY>
</HTML>
|
