tutorial.PreyPred.Preys Class Reference

Inheritance diagram for tutorial.PreyPred.Preys:

Public Member Functions
double	derivative (double t)
	This method should return the derivative of this variable with respect to time, at time \(t\).
Public Member Functions inherited from umontreal.ssj.simevents.Continuous
	Continuous ()
	Constructs a new continuous-time variable linked to the default simulator, without initializing it.
	Continuous (Simulator sim)
	Constructs a new continuous-time variable linked to the given simulator, without initializing it.
void	init (double val)
	Initializes or reinitializes the continuous-time variable to val.
double	value ()
	Returns the current value of this continuous-time variable.
Simulator	simulator ()
	Returns the simulator linked to this continuous-time variable.
void	setSimulator (Simulator sim)
	Sets the simulator linked to this continuous-time variable.
void	startInteg ()
	Starts the integration process that will change the state of this variable at each integration step.
void	startInteg (double val)
	Same as startInteg, after initializing the variable to val.
void	stopInteg ()
	Stops the integration process for this continuous variable.
void	afterEachStep ()
	This method is executed after each integration step for this Continuous variable.

Additional Inherited Members
Static Public Member Functions inherited from umontreal.ssj.simevents.Continuous
static void	selectEuler (double h)
	Selects the Euler method as the integration method, with the integration step size h, in time units, for the default simulator.
static void	selectRungeKutta4 (double h)
	Selects a Runge-Kutta method of order 4 as the integration method to be used, with step size h.
static void	selectRungeKutta2 (double h)
	Selects a Runge-Kutta method of order 2 as the integration method to be used, with step size h.

Detailed Description

Definition at line 29 of file PreyPred.java.

Member Function Documentation

derivative()

double tutorial.PreyPred.Preys.derivative

(

double

t

)

This method should return the derivative of this variable with respect to time, at time \(t\).

Every subclass of Continuous that is to be instantiated must implement it. If the derivative does not depend explicitly on time, \(t\) becomes a dummy parameter. Internally, the method is used with \(t\) not necessarily equal to the current simulation time.

Parameters

t	time at which the derivative must be computed

Reimplemented from umontreal.ssj.simevents.Continuous.

Definition at line 34 of file PreyPred.java.

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The documentation for this class was generated from the following file:

• src/main/docs/examples/tutorial/PreyPred.java