Quantum Computing.
|101⟩⟨110|+ |100⟩⟨111| If the last qbit is 0 the first qbit is unchanged, the second qbit is the sum of the first two qbits and the third qbit is the carry U_T U_CNOT |ab0⟩ = |000⟩⟨000|ab0⟩ + |010⟩⟨010|ab0⟩ + |110⟩⟨100|ab0⟩ + |101⟩⟨110|ab0⟩ Sometimes it may be convenient to calculate ƒ(x) has the