ong><pre>F&lt;&gt;(T numeratorDF, T denominatorDF)</pre></strong>
F distribution with numerator and denominator degrees
of freedom specified.  Both these parameters must be
positive.  Use <code>setDF(T dfn, T dfd)</code> to change the
degrees of freedom. 
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<p><br><br><table width="100%" border="0" cellpadding="3"><tr><td align="left" bgcolor="#1080BF"><font color="#ffffff" face="Helvetica" size=+3>9.7.8: <code>random/discrete-uniform.h</code></font></t