fering data and read them in
   as needed.
</p>
<p>
   A basic example using an input file to do several problem cases:
</p>
<h3>file "cases.nml"</h3>
<pre>
   input file with multiple cases. Until a NAMELIST block name is
   recognised input lines are ignored, so you could have the data
   inbedded in a markdown file or HTML file as long as the data cases
   follow the NAMELIST input file rules (easiest with the HTML directive
    &lt;xmp&gt; but it is deprecated although &quot;universally&quot