exponential function

noun Mathematics.

the function y = ex.
any function of the form y = bax, where a and b are positive constants.
any function in which a variable appears as an exponent and may also appear as a base, as y = x2x.

Origin of exponential function

First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019