X3762

X1491com[T(bc, c²)]

X3762 = X663-of-inner-Garcia triangle
< 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) { 190, 646 }: Central Line L(190, 646) { 514, 661 }: Central Line L(514, 661) { 918, 1086 }: Central Line L(918, 1086) { 900, 1145 }: Central Line L(900, 1145) { 10, 2254 }: Central Line L(10, 2254) { 4, 2814 }: Central Line L(4, 2814) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_646 = BARYCENTRIC MULTIPLIER FOR YFF PARABOLA (-0.0898, 0.2051) X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329) X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (48.4286, -23.0952) X_918 = ISOTOMIC CONJUGATE OF X(666) (1.0192, 0.5351) X_1086 = CENTER OF HYPERBOLA {{A,B,C,X(2),X(7)|} (0.7687, 0.1000) X_900 = CROSSDIFFERENCE OF X(6) AND X(101) (0.9566, 0.6107) X_1145 = 3rd EHRMANN POINT (0.3061, 0.2999) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_2254 = -ISOCONJUGATE OF X(919) (2.5714, 1.8663) X_4 = ORTHOCENTER (0.6122, 0.3958) X_2814 = ISOGONAL CONJUGATE OF X(2730) (0.0978, -0.1889) X_3762 = com[T(bc, c2)] (-1.5306, -1.4997) A B C X190 X646 X514 X661 X918 X1086 X900 X1145 X10 X2254 X4 X2814 X3762 (a, b, c) = (5, 6, 7) | AB = 1

X3762 (X1491com[T(bc, c²)]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

"""GEOMETOR construction model for X_3762 = X_1491com[T(bc, 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,
            isotomic_conjugate,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03762(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3762 = X_1491com[T(bc, c²)] on reference triangle ABC."""
            X_3257 = eval_trilinear_point(model, A, B, C, '1/((b - c)*(b + c - 2*a))', ID="X_3257", classes=["center"])
            X_3762 = isotomic_conjugate(model, A, B, C, X_3257, ID="X_3762", classes=["selected", "target"])
            X_190 = eval_trilinear_point(model, A, B, C, 'b*c/(b - c)', ID="X_190", classes=["center", "incident"])
            X_646 = eval_trilinear_point(model, A, B, C, '((b + c - a)/(a**(2)*(b - c)))', ID="X_646", classes=["center", "incident"])
            central_line(model, X_190, X_646, 190, 646, incident=True)
            X_514 = eval_trilinear_point(model, A, B, C, '(b - c)/a', ID="X_514", classes=["center", "incident"])
            X_661 = eval_trilinear_point(model, A, B, C, 'cot(B) - cot(C)', ID="X_661", classes=["center", "incident"])
            central_line(model, X_514, X_661, 514, 661, incident=True)
            X_918 = eval_barycentric_point(model, A, B, C, '((b - c)*(b**(2) + c**(2) -a*b - a*c))', ID="X_918", classes=["center", "incident"])
            X_1086 = eval_trilinear_point(model, A, B, C, '(b*c*(b - c)**(2))', ID="X_1086", classes=["center", "incident"])
            central_line(model, X_918, X_1086, 918, 1086, incident=True)
            return promote_point_to_top(model, X_3762)


        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_3762 on the given reference triangle."""
            model = create_model('X_3762 = X_1491com[T(bc, c²)]')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03762(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-03762.json"))
            write_center_svg(
                model_acute,
                here / "x-03762.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )