to obtain.
<br>
<br>
The second table brings some improvements: each column has its own width, headings are centered,
and numbers right aligned. Moreover, horizontal lines have been removed. This is done by means
of the <code>border</code> parameter of the <a href='../doc/cell.htm'>Cell()</a> method, which specifies which sides of the
cell must be drawn. Here we want the left (<code>L</code>) and right (<code>R</code>) ones. It remains
the problem of the horizontal line to finish the table. There are two po