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phaseR (version 2.0)

exponential: The Exponential Growth Model

Description

The derivative function of the exponential growth model, an example of a one- dimensional autonomous ODE system.

Usage

exponential(t, y, parameters)

Arguments

t

The value of , the independent variable, to evaluate the derivative at. Should be a single number.

y

The value of , the dependent variable, to evaluate the derivative at. Should be a single number.

parameters

The values of the parameters of the system. Should be a single number prescribing the value of .

Value

Returns a list containing the value of the derivative at .

Details

exponential evaluates the derivative of the following ODE at the point :

Its format is designed to be compatible with ode from the deSolve package.

See Also

ode