\begin{ccRefConcept}{PolynomialTraits_d::UnivariateContent}

\ccDefinition

This \ccc{AdaptableUnaryFunction} computes the content of a 
\ccc{PolynomialTraits_d::Polynomial_d} 
with respect to the univariate (recursive) view on the 
polynomial, that is, it computes the gcd of all 
coefficients  with respect to one variable. 

This functor is well defined if \ccc{PolynomialTraits_d::Coefficient_type} is 
a \ccc{Field} or a \ccc{UniqueFactorizationDomain}.

\ccRefines 
\ccc{AdaptableUnaryFunction}

\ccTypes

\ccCreationVariable{fo}
\ccSetThreeColumns{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}{xxx}{}
\ccTypedef{typedef PolynomialTraits_d::Coefficient_type    result_type;}{}\ccGlue
\ccTypedef{typedef PolynomialTraits_d::Polynomial_d argument_type;}{}\ccGlue

\ccOperations
\ccMethod{result_type operator()(argument_type p);}
         {Computes the content of $p$ with respect to the outermost variable $x_{d-1}$. }

%\ccMethod{result_type operator()(argument_type p, int i);}
%         {Computes the content of $p$ with respect to variable $x_i$. 
%          \ccPrecond $0 \leq i  < d$
%         }

%\ccHasModels

\ccSeeAlso

\ccRefIdfierPage{Polynomial_d}\\
\ccRefIdfierPage{PolynomialTraits_d}

\end{ccRefConcept}