Normalizes this quaternion.
SIQuaternion.Normalize();
dim q1 ' Create Quaternion. set q1 = XSIMath.CreateQuaternion q1.Set 1.0, 1.0, 2.0, 3.0 q1.Normalize
SIQuaternion.Set SIVector3 SIMatrix3 SIMatrix4 SIRotation SITransformation SIQuaternion
