%\ccHtmlNoRefLinks
\begin{ccRefFunction}{angle}

\ccHtmlNoLinks
\ccFunction{Angle angle(const Vector_2<Kernel>&u, 
                        const Vector_2<Kernel>&v);}
{returns \ccStyle{OBTUSE}, \ccStyle{RIGHT} or \ccStyle{ACUTE} depending
on the angle formed by the two vectors $u$ and $v$.}

\ccHtmlNoLinks
\ccFunction{Angle angle(const Point_2<Kernel>& p,
                        const Point_2<Kernel>& q,
                        const Point_2<Kernel>& r);}
{returns \ccStyle{OBTUSE}, \ccStyle{RIGHT} or \ccStyle{ACUTE} depending
on the angle formed by the three points $p$, $q$, $r$ ($q$ being the vertex of
the angle). The returned value is the same as \ccc{angle(p - q, r - q)}.}

\ccHtmlNoLinks
\ccFunction{Angle angle(const Point_2<Kernel>& p,
                        const Point_2<Kernel>& q,
                        const Point_2<Kernel>& r,
                        const Point_2<Kernel>& s);}
{returns \ccStyle{OBTUSE}, \ccStyle{RIGHT} or \ccStyle{ACUTE} depending
on the angle formed by the two vectors $pq$, $rs$. The returned value is
the same as \ccc{angle(q - p, s - r)}.}

\ccHtmlNoLinks
\ccFunction{Angle angle(const Point_3<Kernel>& p,
                        const Point_3<Kernel>& q,
                        const Point_3<Kernel>& r);}
{returns \ccStyle{OBTUSE}, \ccStyle{RIGHT} or \ccStyle{ACUTE} depending
on the angle formed by the three points $p$, $q$, $r$ ($q$ being the vertex of
the angle).}

\end{ccRefFunction}