Arithmetic Course/Non Linear Function/Exponential Functiion

Exponential Increasing Function

 * $$f(x) = A e^{-x}$$

Exponential Decreasing Function

 * $$f(x) = A e^{-x}$$

Exponential Decay Function

 * $$f(x) = e^{-x} (e^x + e^{-x}) = A Cos x$$
 * $$f(x) = e^{-x} (e^{jx} + e^{-jx}) = A Sin x$$