The derivative function of the exponential growth model, an example of a one- dimensional autonomous ODE system.
exponential(t, y, parameters)The value of , the independent variable, to evaluate the derivative at. Should be a single number.
The value of , the dependent variable, to evaluate the derivative at. Should be a single number.
The values of the parameters of the system. Should be a single number prescribing the value of .
Returns a list containing the value of the derivative at .
exponential evaluates the derivative of the following ODE at the point
:
Its format is designed to be compatible with ode from the deSolve package.