
</TR>
<TR><TD ALIGN="CENTER"><TT>medium</TT></TD>
<TD ALIGN="CENTER">123</TD>
<TD ALIGN="CENTER">590</TD>
</TR>
<TR><TD ALIGN="CENTER"><TT>fine</TT></TD>
<TD ALIGN="CENTER">141</TD>
<TD ALIGN="CENTER">974</TD>
</TR>
<TR><TD ALIGN="CENTER"><TT>xfine</TT></TD>
<TD ALIGN="CENTER">205</TD>
<TD ALIGN="CENTER">1454</TD>
</TR>
</TABLE> 
<BR>
</DIV>
<BR>

<P>

<P>

<H2><A NAME="SECTION001391000000000000000">
11.9.1 Angular grids</A>
</H2>

<P>
In addition to the simple keyword specifying the desired accuracy as
de