
<A NAME=STIRLING2>

<TITLE>STIRLING2</TITLE></A>
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<B>STIRLING2</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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The <em>Stirling1</em> operator returns the Stirling Numbers S(n,m) of the 
second kind, i.e. the number of ways of partitioning a set of n elements 
into m non-empty subsets. 
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syntax: </H3>
<em>Stirling2</em>(&lt;integer&gt;,&lt;integer&gt;) 
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examples: </H3>
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Stirling2 (17,4); 

  694337290 


Stirling2 (n,n-1); 

   gamma(n+1)
  -------------
  2*gamma(n-1)

</TT></PRE><P>The operator <em>Stirling2</em> evaluates the Stirling numbers of 
the 
second kind by rulesets for special cases or by a computing the closed 
form. 
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