nym called `<font color="#82140F"><code>\function</code></font>' which defines `<font color="#82140F"><code>y</code></font>' in terms of
`<font color="#82140F"><code>x</code></font>'.
<p>
Gri uses the program `<font color="#82140F"><code>awk</code></font>' to create the columns, and cannot work
without it.  
<p>
Here is an example of using `<font color="#82140F"><code>create columns from function</code></font>':
<p>
<TABLE SUMMARY="Example" BORDER="0" BGCOLOR="#efefef" WIDTH="100%">
<TR>
<TD>
<PRE>
<font co