functiondefining
Functiondefining is the process of specifying the behavior of a function. In mathematics and computer science, it involves articulating the input domain, output codomain, and the mapping that assigns each input to exactly one output. The term emphasizes the act of defining rather than merely describing a function, and can apply to formal definitions, implementations, or specifications.
In mathematical practice, a function is defined by a rule f: A → B. A complete definition identifies
In programming languages, a function definition declares a name, parameters, and a body that computes a result.
Practices emphasize explicit domain and type information, clear preconditions and postconditions, and avoiding ambiguity in overloading.
The term is more common in educational or informal contexts than in formal literature, where "definition" or