The derivative function of an example two-dimensional autonomous ODE system.
example7(t, y, parameters)The value of , the independent variable, to evaluate the derivative at. Should be a single number.
The values of and , the dependent variables, to evaluate the derivative at. Should be a vector of length two.
The values of the parameters of the system. Not required here.
Returns a list containing the values of the two derivatives at .
example7 evaluates the derivatives of the following coupled ODE system
at the point :
Its format is designed to be compatible with ode from
the deSolve package.