Definition from Wiktionary, the free dictionary
- In good working order.
- Useful; serving a purpose, fulfilling a function
- That sculpture is not merely artistic, but also functional: it can be used as a hatrack.
- Only for functional purposes, notably in architecture
- A functional construction element generally must meet higher technical but lower aesthetical requirements
- (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.
in good working order
useful, serving a purpose
utilitarian — see utilitarian
Having semantics defined purely in terms of mathematical functions, without side-effects
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functional (plural functionals)
- (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 linear function on a vector space
- (computing) An object encapsulating a function pointer (or equivalent).
a function that takes a function as its argument