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<A NAME=POCHHAMMER>

<TITLE>POCHHAMMER</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>POCHHAMMER</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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The <em>Pochhammer</em> operator implements the Pochhammer notation 
(shifted factorial). 
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 <P> <H3> 
syntax: </H3>
<em>Pochhammer</em>(&lt;expression&gt;,&lt;expression&gt;) 
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 <P> <H3> 
examples: </H3>
<P><PRE><TT>
pochhammer(17,4); 

  116280 



pochhammer(1/2,z); 

    factorial(2*z)
  --------------------
    2*z
  (2   *factorial(z))

</TT></PRE><P>A number of complex rules for <em>Pochhammer</em> are inactive, be
cause they 
cause a huge system load in algebraic mode. If one wants to use more rules 
for the simplification of Pochhammer's notation, one can do: 
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let special!*pochhammer!*rules; 
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