# controlled-Z rotation gates in symmetrical fashion

I was going through the qiskit textbook and in this chapter, i came across a statement under the topic "Kickback with the T-gate" related to the Controlled-Z gate that "the controlled-Z rotation gates are symmetrical in fashion (two controls instead of a control and a target). There is no clear control or target qubit for all cases." What does it imply exactly?

• A releted answer. – Davit Khachatryan Aug 31 at 17:39
• CZ(control=i,target=j)=CZ(control=j,target=i)...maybe a bit surprising at first...so you can pick either bit for control/target – unknown Aug 31 at 17:50

from qiskit import *