functional

== English == === Etymology === From function +‎ -al. === Pronunciation === IPA(key): /ˈfʌŋkt͡ʃənəl/, /ˈfʌŋkt͡ʃnəl/ === Adjective === functional (comparative more functional, superlative most functional) In good working order. Useful; serving a purpose, fulfilling a function. Only for functional purposes, notably in architecture. Of or relating to one's role or office; official. (physiology, psychology) Characterizing functioning in environment, being symptoms that do not presuppose alteration of organic structure. Optimized for all-around physiological benefit. (mathematics) Of or relating to a function or functions. (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects. Synonym: pure Antonym: imperative ==== Synonyms ==== functioning, working utilitarian ==== Antonyms ==== dysfunctional non-functional, nonfunctional, unfunctional (antonym(s) of “medicine: not referrable to a change of structure”): organic ==== Hyponyms ==== ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === Noun === functional (plural functionals) (mathematics) A function that takes a function as its argument; more precisely, a function whose argument varies in a space of (real or complex valued) functions and whose value belongs to a monodimensional space. (mathematics, functional analysis) A scalar-valued linear function on a vector space. (computing) An object encapsulating a function pointer (or equivalent). ==== Derived terms ==== functional analysis functional analysis diagram linear functional ==== Translations ==== === References === functional on Wikipedia.Wikipedia === Further reading === “functional”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “functional”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC. “functional”, in OneLook Dictionary Search.