Intersection of 3 Planes by Andreas Lindner

This example demonstrates the intersection lines of three planes in 3D space. Key math concepts include solid geometry, vectors, and coordinate geometry. It uses the IntersectPath command to calculate intersection points, involving objects like a_1, b_1, c_1, d_1, ε_1, a_2, b_2, c_2, d_2, a_3, b_3, c_3, d_3, ε_2, ε_3, g_{1,2}, g_{2,3}, g_{1,3}, etc. Suitable for high school students and above learning solid geometry and vectors, or for educational demonstrations.