X3662

2nd KIRIKAMI-MOSES POINT

X3662 = 3(\(a^{2}\) + \(b^{2}\) + \(c^{2})\)*X2 + (\(a^{2}\) + \(b^{2}\) + \(c^{2}\) -2bc - 2ca - 2ab)X7
< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 2, 7 }: Centroid–Gergonne Line { 75, 141 }: Central Line L(75, 141) { 69, 239 }: Central Line L(69, 239) { 6, 320 }: Central Line L(6, 320) { 85, 257 }: Central Line L(85, 257) { 273, 297 }: Central Line L(273, 297) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2 = CENTROID (0.5374, 0.2000) X_7 = GERGONNE POINT (0.5903, 0.2769) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_141 = COMPLEMENT OF SYMMEDIAN POINT (0.5061, 0.1663) X_69 = SYMMEDIAN POINT OF THE ANTICOMPLEMENTARY TRIANGLE (0.4122, 0.0654) X_239 = -LINE CONJUGATE OF X(42) (4.2109, 3.7992) X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672) X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993) X_85 = ISOTOMIC CONJUGATE OF X(9) (0.5610, 0.2421) X_257 = ISOGONAL CONJUGATE OF X(172) (0.5240, 0.1822) X_273 = ISOGONAL CONJUGATE OF X(212) (0.6191, 0.4329) X_297 = -HIRST INVERSE OF X(4) (0.8440, 1.0022) X_3662 = 2nd KIRIKAMI-MOSES POINT (0.5131, 0.1646) A B C X2 X7 X75 X141 X69 X239 X6 X320 X85 X257 X273 X297 X3662 (a, b, c) = (5, 6, 7) | AB = 1

X3662 (2nd KIRIKAMI-MOSES POINT) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3662 = 2nd KIRIKAMI-MOSES POINT."""

        from __future__ import annotations

        from pathlib import Path

        import sympy.geometry as spg
        from geometor.model import Model

        from geometor.etc.ops import (
            central_line,
            centroid_of,
            construct_baseline_triangle,
            create_model,
            eval_trilinear_point,
            gergonne_point_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03662(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3662 = 2nd KIRIKAMI-MOSES POINT on reference triangle ABC."""
            X_3662 = eval_trilinear_point(model, A, B, C, '(b*c*(b**(2) + c**(2) - b*c))', ID="X_3662", classes=["selected", "target"])
            X_2 = centroid_of(model, A, B, C, ID="X_2", classes=["center", "incident"])
            X_7 = gergonne_point_of(model, A, B, C, ID="X_7", classes=["center", "incident"])
            central_line(model, X_2, X_7, 2, 7, incident=True)
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            X_141 = eval_trilinear_point(model, A, B, C, 'b*c*(b**(2) + c**(2))', ID="X_141", classes=["center", "incident"])
            central_line(model, X_75, X_141, 75, 141, incident=True)
            X_69 = eval_trilinear_point(model, A, B, C, '(cos(A))/a**(2)', ID="X_69", classes=["center", "incident"])
            X_239 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2) - b*c)', ID="X_239", classes=["center", "incident"])
            central_line(model, X_69, X_239, 69, 239, incident=True)
            return promote_point_to_top(model, X_3662)


        def build_model(
            sides: tuple[float, float, float] = (5.0, 6.0, 7.0),
            show_guides: bool = False,
        ) -> Model:
            """Build a `geometor.model.Model` for X_3662 on the given reference triangle."""
            model = create_model('X_3662 = 2nd KIRIKAMI-MOSES POINT')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03662(model, A, B, C)
            return model


        if __name__ == "__main__":
            here = Path(__file__).resolve().parent
            model_acute = build_model((5.0, 6.0, 7.0))
            model_acute.save(str(here / "x-03662.json"))
            write_center_svg(
                model_acute,
                here / "x-03662.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )