Quaternions.md (599B)
1 # Quaternions 2 3 CS 331 W11 L2 4 5 **Definition:** These are four values that describe something which can be stated as (x,y,z,w). In Unity, quaternions are used to describe rotations about axis. 6 7 There are names for the rotations with regard to the local coordinate system. The lean forward and backward is the pitch (rotation about x axis), the rotation around their center is the yaw (rotation about y axis think spinning in circles), and the rotation about the z axis is called the roll (think barrel rolls). 8 9 See [Transform](Transform.md) for more information about coordinate systems and such.