FUNCTION
, a term used in analytics, for an algebraical expression any how compounded of a certain letter or quantity with other quantities or numbers: and the expression is said to be a Function of that letter or quantity. Thus , or , or , or xc, or cx, is each of them a Function of the quantity x.
On the subject of Functions, their divisions, transformations, explication by insinite series, &c, see Euler's Analys. Infinitorum, c. 1, where the subject is fully treated.
