standards and produces more efficient code that Microsoft's 
compiler.
<p><li>
With these environments, you can use NTL's 
<a href="tour-unix.html">Unix distribution</a>,
and the installation is almost entirely automatic:
no pointing and clicking -- not much more 
than <tt>./configure</tt> and <tt>make</tt>.
You can also easily to install GMP 
and run NTL's performance-tuning Wizard.
These factors combined can make a hige difference in performance, 
easily giving you a huge (10x or more) performance improve