
<A NAME=PERM>

<TITLE>PERM</TITLE></A>
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<B>PERM</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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syntax: </H3>
perm(&lt;expression1&gt;,&lt;expression2&gt;) 
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If &lt;expression1&gt; and &lt;expression2&gt; evaluate to positive integers, 
<em>perm</em> returns the number of permutations possible in selecting 
&lt;expression1&gt; objects from &lt;expression2&gt; objects. 
In other cases, an expression in the original operator is returned. 
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examples: </H3>
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perm(1,1); 

  1 


perm(3,5); 

  60 


perm(-3,5); 

  PERM(-3,5) 


perm(a,b); 

  PERM(A,B)

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