%\ccHtmlNoRefLinks \begin{ccRefFunction}{angle} \ccHtmlNoLinks \ccFunction{Angle angle(const Point_2& p, const Point_2& q, const Point_2& 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).} \ccHtmlNoLinks \ccFunction{Angle angle(const Point_3& p, const Point_3& q, const Point_3& 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}