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[cgal-discuss] clarfication about the function squared_radius() in CGAL


Chronological Thread 
  • From: Kwok Jasper <>
  • To: <>
  • Subject: [cgal-discuss] clarfication about the function squared_radius() in CGAL
  • Date: Sun, 1 Feb 2009 14:24:41 +0800
  • Importance: Normal

Excuse me, may I clarify something about the following function in CGAL?


FT squared_radius ( Point_2<Kernel> p, Point_2<Kernel> q, Point_2<Kernel> 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?

Thank you very much








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