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<B>TAYLORTEMPLATE</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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 The template of a Taylor kernel, i.e. the list of all variables 
 with respect to which expansion took place together with expansion 
 point and order can be extracted using 
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syntax: </H3>
<em>taylortemplate</em>(&lt;expression&gt;) or 
 <em>taylortemplate</em> &lt;simple_expression&gt; 
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This returns a list of lists with the three elements 
 (VAR,VAR0,ORDER). An error is signalled if the argument is not a 
 Taylor kernel. 
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examples: </H3>
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    hugo := taylor(exp(x),x,0,2); 

                  1  2      3
  HUGO := 1 + X + -*X  + O(X )
                  2


    taylortemplate hugo; 

  {{X,0,2}}  

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