Free Carrier. In international commerce, an agreement between a seller and a buyer indicating that the seller has fulfilled his/her obligation to deliver a good when he/she has transferred it to the port, airport, or other place from which it will be transported.
Definition of UNIT FRACTION. : a fraction whose numerator is unity and whose denominator is an integer.
up vote 2 down vote favorite. 2. I know that a unitary matrix is a matrix whose inverse equals its conjugate transpose (or that multiplying it by its conjugate transpose yields the identity), but I don't have a deep intuition about it (I just accept the definition).