ml2154"
  HREF="manual-node167.html">
<IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="index.png"></A> 
<BR>
<B> Next:</B> <A NAME="tex2html2157"
  HREF="manual-node115.html">Matrix and Transformation</A>
<B> Up:</B> <A NAME="tex2html2151"
  HREF="manual-node113.html">Geometric Functions</A>
<B> Previous:</B> <A NAME="tex2html2145"
  HREF="manual-node113.html">Geometric Functions</A>
 &nbsp; <B>  <A NAME="tex2html2153"
  HREF="manual-node1.html">Contents</A></B> 
 &nbsp; <B>  <A NAME="