X3806

X2525com[INVERSE(nT(a², a² + c²))]

< 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) { 230, 231 }: Central Line L(230, 231) { 826, 2474 }: Central Line L(826, 2474) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_230 = -CEVA CONJUGATE OF X(114) (0.9746, 0.6698) X_231 = -CEVA CONJUGATE OF X(128) (1.0375, 0.6458) X_826 = ODD (0, 4) INFINITY POINT (1.1003, 0.0340) X_2474 = RADICAL CENTER OF {BROCARD, 2nd LEMOINE, (X(4),2R)} CIRCLES (6.9649, -4.0371) X_3806 = com[INVERSE(nT(a2, a2 + c2))] (34.6419, -12.1975) A B C X230 X231 X826 X2474 X3806 (a, b, c) = (5, 6, 7) | AB = 1

X3806 (X2525com[INVERSE(nT(a², a² + c²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3806 = X_2525com[INVERSE(nT(a², a² + c²))]."""

        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,
            construct_baseline_triangle,
            create_model,
            eval_barycentric_point,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03806(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3806 = X_2525com[INVERSE(nT(a², a² + c²))] on reference triangle ABC."""
            X_3806 = eval_barycentric_point(model, A, B, C, '((b**(4) - c**(4))*(3*a**(2) + b**(2) + c**(2)))', ID="X_3806", classes=["selected", "target"])
            X_230 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(2)*(2*a**(2) - b**(2) - c**(2)) + (b**(2) - c**(2))**(2))', ID="X_230", classes=["center", "incident"])
            X_231 = eval_trilinear_point(model, A, B, C, '(cos(B))*(4*(sin(C))**(2) - 1)*(cos(A)*sin(B) - sin(A)*cos(B)) - (cos(C))*(4*(sin(B))**(2) - 1)*(cos(C)*sin(A) - sin(C)*cos(A))', ID="X_231", classes=["center", "incident"])
            central_line(model, X_230, X_231, 230, 231, incident=True)
            X_826 = eval_trilinear_point(model, A, B, C, 'a **(-1)*(b**(4) - c**(4)) + a**(3)*(b**(0) - c**(0))', ID="X_826", classes=["center", "incident"])
            X_2474 = eval_trilinear_point(model, A, B, C, '(a*(b**(4) - c**(4))*(a**(4) + b**(4) + c**(4) + 2*a**(2)*b**(2) + 2*a**(2)*c**(2) - 2*b**(2)*c**(2)))', ID="X_2474", classes=["center", "incident"])
            central_line(model, X_826, X_2474, 826, 2474, incident=True)
            return promote_point_to_top(model, X_3806)


        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_3806 on the given reference triangle."""
            model = create_model('X_3806 = X_2525com[INVERSE(nT(a², a² + c²))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03806(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-03806.json"))
            write_center_svg(
                model_acute,
                here / "x-03806.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )