# 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 *x*^{c}, or *c*^{x}, 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.