Pyrr provides 3D mathematical functions using the power of NumPy. Features: * Object Oriented and Procedural interfaces * Matrix (3x3, 4x4) * Quaternion * Vector (3D, 4D) * Plane * Ray * Line / Line Segment (3D) * Rectangle (2D) * Axis Aligned Bounding Box (AABB / AAMBB) * Geometric collision / intersection testing