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<A NAME=JacobiCN>

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<B>JACOBICN</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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The <em>Jacobicn</em> operator returns the Jacobi Elliptic function cn. 
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syntax: </H3>
<em>Jacobicn</em>(&lt;expression&gt;,&lt;integer&gt;) 
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examples: </H3>
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Jacobicn(7.2, 0.6) 

  0.837288298482018  


Jacobicn(0.11, 19) 

  0.994403862690043 - 1.6219006985556e-16*i  

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