1. A mathematical function of the form f(x) = a^x, where a is a positive constant (base) and x is the variable exponent
The exponential function grows rapidly as x increases.
A função exponencial cresce rapidamente conforme x aumenta.
2. In particular, the function f(x) = e^x, where e is Euler's number (approximately 2.71828)
The natural exponential function e^x is fundamental in calculus.
A função exponencial natural e^x é fundamental no cálculo.
3. Any process or behavior that increases or decreases at a rate proportional to its current value
Population growth often follows an exponential function.
O crescimento da população frequentemente segue uma função exponencial.