(a) Of, regarding, or showing a mathematical function or features.
(a) made for or modified to a specific purpose or use: practical structure.
(n) A linear purpose on vectors whose values tend to be scalars.
(n) A function which takes a function as the debate; More exactly: A function y=f(x) whoever debate x varies in an area of (genuine valued, complex valued) functions and whoever worth belongs to a monodimensional space. A good example: the definite integration of integrable real functions in an actual interval.
(n) (useful analysis) A scalar-valued linear purpose on a vector space
Pertaining to functions; regarding some company or function.
Pertaining to an algebraical procedure: since, a practical image.
obtaining the function normal into the component or organ: as, functional wings of an insect (which, those useful for traveling).