public Quaternionf add(Quaternionfc q2) {
        x += q2.x();
        y += q2.y();
        z += q2.z();
        w += q2.w();
        return this;
    }
public Quaternionf add ( Quaternionfc q2 ) { x += q2 . x ( ) ; y += q2 . y ( ) ; z += q2 . z ( ) ; w += q2 . w ( ) ; return this ; }
Add <code>q2</code> to this quaternion.

@param q2
the quaternion to add to this
@return this