👉 Precomputing is a process in computer science where a program first performs some computation before starting to execute it. This can be useful for optimizing programs, reducing execution time or improving performance. In programming languages like Python, C++, and Java, precomputing is typically achieved by using "preconditions" or "conditions" statements that allow the compiler or interpreter to skip certain operations if they are known beforehand to be correct. For example, in a function that calculates a square root of a number,