Adjective

(*not comparable*)

- (analysis, of a function) Having only real values: having as its codomain the set of real numbers or a subset thereof.

Usage notes

- Though logically it would seem that
*real-valued*should contrast only with*complex-valued*,*vector-valued*, and so on, in practice it frequently also contrasts with*integer-valued*. (This may be seen as an example of Q-based narrowing.)

Adjective

(*not comparable*)

- (mathematics) Used to describe a mathematical entity, like a function, that takes values from the real numbers (as opposed to, for instance, from the complex numbers.)