CGAL users discussion list

[Monique Teillaud <>]

Kwok Jasper wrote:
> Excuse me, may I clarify something about the following function in CGAL?/
>
>
> FT squared_radius ( Point_2 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Concept_Kernel--Point_2.html#Cross_link_anchor_375><Kernel> 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Class_Ambient_dimension.html#Cross_link_anchor_609> 
> p, Point_2 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Concept_Kernel--Point_2.html#Cross_link_anchor_375><Kernel> 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Class_Ambient_dimension.html#Cross_link_anchor_609> 
> q, Point_2 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Concept_Kernel--Point_2.html#Cross_link_anchor_375><Kernel> 
> <http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Kernel_23_ref/Class_Ambient_dimension.html#Cross_link_anchor_609> 
> r)
> /compute the squared radius of the circle passing through the points 
> /p/, /q/, and /r/.
> _Precondition:_ /p/, /q/, and /r/ are not collinear.
>
> The documentation mention the term "squared radius"
>
> If the radius of the circle passing through p, q and r equal to R
> then, is it that the above function return R * R but not R?

yes

> Thank you very much
>
>
>
>
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