Functional vs Useful - What's the difference?
functional | useful | Synonyms |
In good working order.
Useful; serving a purpose, fulfilling a function
Only for functional purposes, notably in architecture
(computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects.
(medicine) Of a disease, such that its symptoms cannot be referred to any appreciable lesion or change of structure; opposed to organic disease, in which the organ itself is affected.
(mathematics) A function that takes a function as its argument; More precisely: A function y''=''f''(''x'') whose argument ''x varies in a space of (real valued, complex valued) functions and whose value belongs to a monodimensional space. An example: the definite integration of integrable real functions in a real interval.
(mathematics, functional analysis) A scalar-valued
(computing) An object encapsulating a function pointer (or equivalent).
Having a practical or beneficial use.
* {{quote-magazine, year=2013, month=July-August, author=
, title= '', ''useful for '' and ''useful to ''. The words ''useful to'' are also found in construction such as ''It is useful to do'', in which ''to marks an infinitive rather than being a preposition.
As adjectives the difference between functional and useful
is that functional is in good working order while useful is having a practical or beneficial use.As a noun functional
is a function that takes a function as its argument; More precisely: A function y=f(x) whose argument x varies in a space of (real valued, complex valued) functions and whose value belongs to a monodimensional space. An example: the definite integration of integrable real functions in a real interval.functional
English
Adjective
(en adjective)- That sculpture is not merely artistic, but also functional : it can be used as a hatrack.
- ''A functional construction element generally must meet higher technical but lower aesthetical requirements
Synonyms
* functioning, working * utilitarianAntonyms
* non-functional * dysfunctional * organicDerived terms
(Derived terms) * function * functional analysis * functional analysis diagram * functional anatomy * functional application * functional bombing * functional constraint * functional decomposition * functional design * functional diagram * functional disorder * functional electrical stimulation * functional error recovery * functional failure * functional group * functional interleaving * functional programming * functional requirement * functional residual capacity * functional specifications * functional switching circuit * functional unit * functionality * functionallyNoun
(en noun)linear functionon a vector space
External links
* * *useful
English
Adjective
(en adjective)Lee S. Langston, magazine=(American Scientist)
The Adaptable Gas Turbine, passage=Turbines have been around for a long time—windmills and water wheels are early examples. The name comes from the Latin turbo'', meaning ''vortex , and thus the defining property of a turbine is that a fluid or gas turns the blades of a rotor, which is attached to a shaft that can perform useful work.}}