← etc / Encyclopedia of Triangle Centers

X₂₂₃₆¶

X₂-ISOCONJUGATE OF X₇₃₃

X₂₂₃₆ (X₂-ISOCONJUGATE OF X₇₃₃) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_2236 = X_2-ISOCONJUGATE OF X_733."""

        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,
            crosspoint,
            eval_trilinear_point,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_02236(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_2236 = X_2-ISOCONJUGATE OF X_733 on reference triangle ABC."""
            X_1580 = eval_trilinear_point(model, A, B, C, 'a**(4) - b**(2)*c**(2)', ID="X_1580", classes=["center"])
            X_1966 = eval_trilinear_point(model, A, B, C, 'b**(2)*c**(2)*(a**(4) - b**(2)*c**(2))', ID="X_1966", classes=["center"])
            X_2236 = crosspoint(model, A, B, C, X_1580, X_1966, ID="X_2236", classes=["selected", "target"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_75 = eval_trilinear_point(model, A, B, C, '1/a**(2)', ID="X_75", classes=["center", "incident"])
            central_line(model, X_31, X_75, 31, 75, incident=True)
            X_171 = eval_trilinear_point(model, A, B, C, 'a**(2) + b*c', ID="X_171", classes=["center", "incident"])
            X_385 = eval_trilinear_point(model, A, B, C, 'b*c*(a**(4) - b**(2)*c**(2))', ID="X_385", classes=["center", "incident"])
            central_line(model, X_171, X_385, 171, 385, incident=True)
            X_44 = eval_trilinear_point(model, A, B, C, 'b + c - 2*a', ID="X_44", classes=["center", "incident"])
            X_513 = eval_trilinear_point(model, A, B, C, 'b - c', ID="X_513", classes=["center", "incident"])
            central_line(model, X_44, X_513, 44, 513, incident=True)
            return promote_point_to_top(model, X_2236)


        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_2236 on the given reference triangle."""
            model = create_model('X_2236 = X_2-ISOCONJUGATE OF X_733')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_02236(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-02236.json"))
            write_center_svg(
                model_acute,
                here / "x-02236.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X2236¶

X₂₂₃₆¶