X3800

X512com[INVERSE(nT(a², a² + b²))]

< 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) { 30, 511 }: Central Line L(30, 511) { 419, 2501 }: Central Line L(419, 2501) { 879, 3527 }: Central Line L(879, 3527) { 1734, 3004 }: Central Line L(1734, 3004) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_907 = POINT ACRUX (0.1933, 0.5099) X_30 = EULER INFINITY POINT (0.7469, 0.7481) X_511 = ISOGONAL CONJUGATE OF X(98) (0.2335, -0.3020) X_419 = -HIRST INVERSE OF X(25) (0.7266, 0.6950) X_2501 = RADICAL CENTER OF {CIRCUMCIRCLE, NINE-POINT CIRCLE, TAYLOR CIRCLE} (-0.1402, 1.0959) X_879 = ISOTOMIC CONJUGATE OF X(877) (1.2088, 0.0345) X_3527 = ISOGONAL CONJUGATE OF X(631) (0.6065, 0.3131) X_1734 = MIMOSA TRANSFORM OF X(101) (10.6667, -1.6330) X_3004 = (DE LONGCHAMPS LINE)∩(GERGONNE LINE) (51.8776, -20.6957) X_3800 = com[INVERSE(nT(a2, a2 + b2))] (1.0700, -0.0464) A B C X907 X30 X511 X419 X2501 X879 X3527 X1734 X3004 X3800 (a, b, c) = (5, 6, 7) | AB = 1

X3800 (X512com[INVERSE(nT(a², a² + b²))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3800 = X_512com[INVERSE(nT(a², a² + b²))]."""

        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,
            isogonal_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03800(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3800 = X_512com[INVERSE(nT(a², a² + b²))] on reference triangle ABC."""
            X_907 = eval_trilinear_point(model, A, B, C, '(a/((b**(2) - c**(2))*(3*a**(2) + b**(2) + c**(2))))', ID="X_907", classes=["center"])
            X_3800 = isogonal_conjugate(model, A, B, C, X_907, ID="X_3800", classes=["selected", "target"])
            X_30 = eval_trilinear_point(model, A, B, C, 'cos(A) - 2*cos(B)*cos(C)', ID="X_30", classes=["center", "incident"])
            X_511 = eval_trilinear_point(model, A, B, C, 'cos(A +  omega  )', ID="X_511", classes=["center", "incident"])
            central_line(model, X_30, X_511, 30, 511, incident=True)
            X_419 = eval_barycentric_point(model, A, B, C, '(a**(2) - b*c) * (a**(2) + b*c) * (a**(2) + b**(2) - c**(2)) * (a**(2) - b**(2) + c**(2))', ID="X_419", classes=["center", "incident"])
            X_2501 = eval_trilinear_point(model, A, B, C, 'tan(A)*sin(B - C)', ID="X_2501", classes=["center", "incident"])
            central_line(model, X_419, X_2501, 419, 2501, incident=True)
            X_879 = eval_barycentric_point(model, A, B, C, '(b**(2) - c**(2))*(b**(2) + c**(2) - a**(2))/(b**(4) + c**(4) - a**(2)*b**(2) - a**(2)*c**(2))', ID="X_879", classes=["center", "incident"])
            X_3527 = eval_trilinear_point(model, A, B, C, '(1/(cos(A) + sin(B)*sin(C)))', ID="X_3527", classes=["center", "incident"])
            central_line(model, X_879, X_3527, 879, 3527, incident=True)
            return promote_point_to_top(model, X_3800)


        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_3800 on the given reference triangle."""
            model = create_model('X_3800 = X_512com[INVERSE(nT(a², a² + b²))]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03800(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-03800.json"))
            write_center_svg(
                model_acute,
                here / "x-03800.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )