functional

  1. Adjective.  In good working order.
  2. Adjective.  Useful; serving a purpose, fulfilling a function.
  3. Adjective.  Only for functional purposes, notably in architecture.
  4. Adjective.  (computing theory) Having semantics defined purely in terms of mathematical functions, without side-effects.
  5. Adjective.  (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.
  6. Noun.  (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.
  7. Noun.  (mathematics) (functional analysis) A scalar-valued [http://en.wikipedia.org/wiki/Linear_function linear function] on a vector space.
  8. Noun.  (computing) An object encapsulating a function pointer (or equivalent).

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This entry was last updated on RefTopia from its source on 3/20/2012.