Coupled cluster

Coupled cluster is a way of solving problems involving large numbers. We can think of it like a game of matching. Imagine someone holds up two cards and tells you to match the symbols on the front of the cards. You can look at the back of each card to see the symbols and decide which two match. Coupled cluster is like this game, but instead of cards with symbols, it involves complicated math equations. Using this method, you can find the answers to tough math problems that involve a lot of different variables (numbers).