Function invert

invert(out: quat.Quat, a: quat.Quat): quat.Quat
Calculates the inverse of a quat
Parameters
- out: quat.Quat
  the receiving quaternion
- a: quat.Quat
  quat to calculate inverse of
Returns quat.Quat
out
- Defined in core/quat.ts:379