Parentheses, or “()”, are used in programming to manage function calls and operations. In the context of cryptocurrencies, they play crucial roles in coding smart contracts, algorithms, and transaction processes.When calling a function, parentheses are necessary to encapsulate the arguments being passed. For example, in smart contract development with languages like Solidity, you might see a function call like `transfer(address, amount)`. Here, the parentheses clearly indicate which values are being used in the function.Additionally, parentheses are vital for grouping operations and controlling the order of execution in expressions. For example, in calculations involving mathematical operations, using parentheses can ensure that certain operations are performed first. This is especially important in financial transactions where precise outcomes are needed.Overall, understanding the use of parentheses helps developers write clearer, more effective code, which ultimately contributes to the reliability and security of blockchain applications.