The meaning of FUNCTIONAL is of, connected with, or being a function. How to use functional in a sentence.

The Riemann integral is a linear functional on the vector space of functions defined on [a, b] that are Riemann-integrable from a to b. In mathematics, a functional is a certain type of function.

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FUNCTIONAL meaning: 1. designed to be practical and useful rather than attractive: 2. (of a machine, system, etc…. Learn more.

Functional means relating to the way in which something works or operates, or relating to how useful it is. ...rules defining the territorial boundaries and functional limits of the local state.

Jun 18, 2025 · A functional is a real-valued function on a vector space V, usually of functions. For example, the energy functional on the unit disk D assigns a number to any differentiable …

Typically, a functional is just a function of a set into a field F. The ones I know best are "linear functionals," where a functional is a linear function of an F vector space into F.

having a special purpose; making it possible for somebody to do something or for something to happen. These units played a key functional role in the military operation. (especially of a …

What does the word functional mean? There are 12 meanings listed in OED's entry for the word functional. See ‘Meaning & use’ for definitions, usage, and quotation evidence. How common …

1. of or pertaining to a function or functions. 2. capable of operating or functioning. 3. having or serving a utilitarian purpose; capable of serving the purpose for which it was designed. 4. (of a …