orthogonal box
maybe needed the phone to be linearly independent
Planes are orthogonal if their normals are. The top and bottom halves of the box both feature a surface which is orthogonal to the sides. Simples.
People tweeting stuff. We allow tweets from anyone.
RULES:
maybe needed the phone to be linearly independent
Planes are orthogonal if their normals are. The top and bottom halves of the box both feature a surface which is orthogonal to the sides. Simples.