functional definition by Wordo

Adjective

In

good

working order

.

Noun

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

.