Hello,

I don't manage to use the member functions of a 2D/3D geometric kernel as

listed on

https://doc.cgal.org/latest/Kernel_23/classKernel.html .

Maybe the problem arises from the fact that I do not fully understand what a

concept, model etc is and especially how to make use of them in practice.

To make my problem specific:

I am working with the Exact_predicates_exact_constructions_kernel and want

to (for example) compute the squared radius of the smallest orthogonal

circle of two weighted points in 2D.

In the reference manual I found:

Compute_squared_radius_smallest_orthogonal_circle_2, a model of

Kernel::ComputeSquaredRadiusSmallestOrthogonalCircle_2.

But I was not able to use it. I tried CGAL::,

CGAL::Exact_predicates_exact_constructions_kernel::, etc but the function is

never found ("not a member of ...").

It would be very helpful if anybody could provide a minimum working example

which makes use of the function.

Thanks for your help,

Kathi

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