Matrix Intersection: Planes and Incircle in a Polyhedral Intersection

① This GeoGebra example demonstrates the intersection of multiple planes with an incircle (or inscribed circle) in 3D space, using matrix operations to visualize the resulting curves or surfaces. ② Core mathematical concepts include matrix transformations, plane equations, incircle/inscribed circle relations with polyhedra, and the geometric meaning of intersection paths (IntersectPath) and intersection points (Intersect). ③ Construction highlights: The commands IntersectPath and Intersect are used, involving objects such as planes j, k, l, m, lines a, d, e, f, g, and points b, p, q, r, s, c, h, i, A, with matrix parameters controlling plane positions to generate dynamic intersections. ④ Suitable for high school to university-level mathematics education, especially for exploring the connection between linear algebra (matrices) and spatial geometry, as well as for demonstrating boolean operations in computer graphics.