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This constraint returns “the other” intersection point of a conic and a line.

That is; given a point P that we know belongs in a conic c and a line l, other_intersection_point_of_conic_and_line(Q,P,c,l) will store in Q the other intersection point.

Actually, it is not necessary that c be a conic and l a line; they could be members of the conic_family and line_family, see Intersection of extended elements.

In case there are less than two intersection points of the conic and line, each DGS should make the behaviour of this constraint consistent with that of intersection_points_of_conic_and_line.


At least one example should be provided