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<H2><A NAME="SECTION0004178000000000000000">SLA_VDV - Scalar Product</A>
<A NAME="xref_SLA_VDV"> </A><A NAME="SLA_VDV"> </A>
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<DL>
<DT><STRONG>ACTION:</STRONG>
<DD>Scalar product of two 3-vectors (single precision).
<DT><STRONG>CALL:</STRONG>
<DD><TT>R = sla_VDV (VA, VB)</TT>
<P> </DL>
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<DT><STRONG>GIVEN:</STRONG>
<DD>
<BR>
<TABLE CELLPADDING=3>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>VA</EM></TD>
<TH ALIGN="LEFT"><B>R(3)</B></TH>
<TD ALIGN="LEFT" NOWRAP>first vector</TD>
</TR>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>VB</EM></TD>
<TD ALIGN="LEFT"><B>R(3)</B></TD>
<TD ALIGN="LEFT" NOWRAP>second vector</TD>
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<DT><STRONG>RETURNED:</STRONG>
<DD>
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<TABLE CELLPADDING=3>
<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>sla_VDV</EM></TD>
<TH ALIGN="LEFT"><B>R</B></TH>
<TD ALIGN="LEFT" NOWRAP>scalar product VA.VB</TD>
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<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>
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