What is another word for functional equation?
Pronunciation: [fˈʌŋkʃənə͡l ɪkwˈe͡ɪʒən] (IPA) 
Functional equations, also known as operational equations, involve functional relationships between variables. Synonyms for the term can include operational equations, operator equations, and functional relations. Additionally, these types of equations are often used to model complex real-world phenomena and can be utilized in fields such as physics, economics, engineering, and mathematics. Some examples of functional equations include the Cauchy functional equation, which is a type of differential equation used in calculus, and the functional equation used in linear programming, which is a technique used to optimize complex systems. Whether one refers to them as functional equations, operational equations, or otherwise, these types of relationships play an important role in a wide range of scientific and mathematical applications.
