mirror of https://github.com/CGAL/cgal
29 lines
847 B
TeX
29 lines
847 B
TeX
\begin{ccRefFunction}{is_square}
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\ccDefinition
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An ring element $x$ is said to be a square iff there exists a ring element
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$y$ such
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that $x= y*y$. In case the ring is a \ccc{UniqueFactorizationDomain},
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$y$ is uniquely defined up to multiplication by units. \\
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The function \ccRefName\ is available if
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\ccc{Algebraic_structure_traits::Is_square} is not the \ccc{CGAL::Null_functor}.
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\ccInclude{CGAL/number_utils.h}
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\ccFunction{template <class NT> result_type is_square(const NT& x);}{
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The \ccc{result_type} is convertible to \ccc{bool}.
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}
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\ccFunction{template <class NT> result_type is_square(const NT& x, NT& y);}{
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The \ccc{result_type} is convertible to \ccc{bool}.
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}
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\ccSeeAlso
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\ccRefConceptPage{UniqueFactorizationDomain}\\
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\ccRefConceptPage{AlgebraicStructureTraits::IsSquare}\\
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\end{ccRefFunction}
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