👉 In mathematics, the revaluation of a function is an operation that can be performed on the input function to obtain its "revised" value. This process involves making changes to the input function so that it is in a new domain or range. Revaluations are often used in calculus and analysis to study the behavior of functions under change, such as when a function's derivative is undefined at a point or when a function has multiple values for a given argument. They can also be applied to simplify