add method

void add(Quaternion arg)

Add arg to this.

Implementation

void add(Quaternion arg) {
  final argStorage = arg._qStorage;
  _qStorage[0] = _qStorage[0] + argStorage[0];
  _qStorage[1] = _qStorage[1] + argStorage[1];
  _qStorage[2] = _qStorage[2] + argStorage[2];
  _qStorage[3] = _qStorage[3] + argStorage[3];
}