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X₃₂₇₁¶

CROSSSUM OF X₂ AND X₁₀₀

X₃₂₇₁ = crossdifference of every pair of points of the line X₁₉₀ X₆₄₄

X₃₂₇₁ (CROSSSUM OF X₂ AND X₁₀₀) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶

"""GEOMETOR construction model for X_3271 = CROSSSUM OF X_2 AND X_100."""

        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_trilinear_point,
            feuerbach_point_of,
            nagel_point_of,
            promote_point_to_top,
        )
        from geometor.etc.render import write_center_svg


        def construct_x_03271(
            model: Model, A: spg.Point, B: spg.Point, C: spg.Point
        ) -> spg.Point:
            """Construct X_3271 = CROSSSUM OF X_2 AND X_100 on reference triangle ABC."""
            X_3271 = eval_trilinear_point(model, A, B, C, 'a*(b - c)**(2)*(b + c - a)', ID="X_3271", classes=["selected", "target"])
            X_31 = eval_trilinear_point(model, A, B, C, 'a**(2)', ID="X_31", classes=["center", "incident"])
            X_51 = eval_trilinear_point(model, A, B, C, 'a**(2)*cos(B - C)', ID="X_51", classes=["center", "incident"])
            central_line(model, X_31, X_51, 31, 51, incident=True)
            X_11 = feuerbach_point_of(model, A, B, C, ID="X_11", classes=["center", "incident"])
            X_124 = eval_trilinear_point(model, A, B, C, '(b*c*(b + c - a)*(b - c)**(2)*((b + c)*(b**(2) + c**(2) - a**(2) - b*c) + a*b*c))', ID="X_124", classes=["center", "incident"])
            central_line(model, X_11, X_124, 11, 124, incident=True)
            X_8 = nagel_point_of(model, A, B, C, ID="X_8", 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_8, X_646, 8, 646, incident=True)
            return promote_point_to_top(model, X_3271)


        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_3271 on the given reference triangle."""
            model = create_model('X_3271 = CROSSSUM OF X_2 AND X_100')
            A, B, C = construct_baseline_triangle(model, *sides, show_guides=show_guides)
            construct_x_03271(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-03271.json"))
            write_center_svg(
                model_acute,
                here / "x-03271.svg",
                subtitle="(a, b, c) = (5, 6, 7) | AB = 1",
            )
        

X3271¶

X₃₂₇₁¶