# exponential function

- 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.

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## Origin of exponential function^{}

First recorded in 1890–95

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018