might be expected, the differences are generally
      small compared to say disabling internal use of <code class="computeroutput"><span class="keyword">long</span>
      <span class="keyword">double</span></code>. However, there are still gains
      to be main, particularly from some of the commercial offerings:
    </p>
<div class="table">
<a name="math_toolkit.comp_compilers.table_Compiler_Comparison_on_Windows_x64"></a><p class="title"><b>Table&#160;19.5.&#160;Compiler Comparison on Windows x64</b></p