Exeter point

== English == === Etymology === Named for the Phillips Exeter Academy (in the town of Exeter, New Hampshire), where it was discovered during a computers-in-mathematics workshop in 1986. === Noun === Exeter point (plural Exeter points) (geometry, given a triangle ΔABC whose medians intersect its circumcircle at {A, A’}, {B, B’} and {C, C’} and ΔDEF constructed from the tangent lines at A, B and C such that D, E and F are respectively opposite A, B and C) The point of concurrence of the rays DA’, EB’ and FC’. ==== Usage notes ==== Designated X(22) in Clark Kimberling's online Encyclopedia of Triangle Centers. === Further reading === Exeter Point on Wolfram MathWorld