ntersecting polygons the same way: a
point is inside the polygon if an infinite ray with the point as
origin crosses an odd number of polygon edges (``EvenOddRule'' in
X-window terminology). Example program PGDEMO1 has been revised to
show the new fill-area styles. 

<p>Routine <a href="subroutines.html#PGERRB">PGERRB</a> has
acquired new options that allow symmetric, two-sided error bars to
be drawn with one call instead of two.</p>

<p>There are two new drivers, <a href="lxdriv.html">LXDRIV</a>, to
create