Title text: 3D graphs that don't contact the plane in the closure area may proceed as scheduled, but be alert for possible collisions with 2D graph lines that reach the hole and unexpectedly enter 3D space.
That plane looks like a plane hit it.
2735: "Coordinate Plane Closure"
2735: "Coordinate Plane Closure"
Title text: 3D graphs that don't contact the plane in the closure area may proceed as scheduled, but be alert for possible collisions with 2D graph lines that reach the hole and unexpectedly enter 3D space.
That plane looks like a plane hit it.
Re: 2735: "Coordinate Plane Closure"
Jet fuel can't melt purely theoretical sheets.