org.simulator.math.odes
Class EulerMethod
java.lang.Object
org.simulator.math.odes.AbstractDESSolver
org.simulator.math.odes.EulerMethod
- All Implemented Interfaces:
- java.io.Serializable, org.apache.commons.math.ode.events.EventHandler, DelayValueHolder, DESSolver
public class EulerMethod
- extends AbstractDESSolver
In this class the Euler method for integration a differential equation system is implemented.
- Since:
- 0.9
- Version:
- $Rev: 146 $
- Author:
- Andreas Dräger
- See Also:
- Serialized Form
Fields inherited from interface org.apache.commons.math.ode.events.EventHandler |
CONTINUE, RESET_DERIVATIVES, RESET_STATE, STOP |
Method Summary |
EulerMethod |
clone()
|
double[] |
computeChange(DESystem DES,
double[] yPrev,
double t,
double stepSize,
double[] change,
boolean steadyState)
Computes the change for a given system at the current time with the
current setting for the integration step size. |
java.lang.String |
getName()
This gives a human-readable name of this solver that can be displayed in
a graphical user interface. |
protected boolean |
hasSolverEventProcessing()
|
Methods inherited from class org.simulator.math.odes.AbstractDESSolver |
additionalResults, addPropertyChangeListener, checkSolution, checkSolution, computeDelayedValue, computeNextState, eventOccurred, firePropertyChange, g, getSerialversionuid, getStepSize, inBetweenSteps, initResultMatrix, initResultMatrix, initResultMatrix, isIncludeIntermediates, isNonnegative, isUnstable, numSteps, processEvents, processEventsAndRules, processRules, removePropertyChangeListener, reset, resetState, setIncludeIntermediates, setNonnegative, setStepSize, setUnstableFlag, solve, solve, solve, solve |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EulerMethod
public EulerMethod()
- default constructor
EulerMethod
public EulerMethod(double stepSize)
- Parameters:
stepSize
-
EulerMethod
public EulerMethod(double stepSize,
boolean nonnegative)
- Parameters:
stepSize
- the
- nonnegative flag of the super class @see org.sbml.simulator.math.odes.AbstractDESSolver
EulerMethod
public EulerMethod(EulerMethod eulerMethod)
- clone constructor
- Parameters:
eulerMethod
-
getName
public java.lang.String getName()
- Description copied from class:
AbstractDESSolver
- This gives a human-readable name of this solver that can be displayed in
a graphical user interface.
- Specified by:
getName
in class AbstractDESSolver
- Returns:
- A name that describes the underlying algorithm.
computeChange
public double[] computeChange(DESystem DES,
double[] yPrev,
double t,
double stepSize,
double[] change,
boolean steadyState)
throws org.apache.commons.math.ode.DerivativeException
- Description copied from class:
AbstractDESSolver
- Computes the change for a given system at the current time with the
current setting for the integration step size.
- Specified by:
computeChange
in class AbstractDESSolver
- Parameters:
DES
- The system to be simulated.yPrev
- The current state of the system.t
- The current simulation time.change
- The vector for the resulting change of the system.
- Returns:
- The change.
- Throws:
org.apache.commons.math.ode.DerivativeException
clone
public EulerMethod clone()
- Specified by:
clone
in interface DESSolver
- Specified by:
clone
in class AbstractDESSolver
- Returns:
- the cloned solver
hasSolverEventProcessing
protected boolean hasSolverEventProcessing()
- Specified by:
hasSolverEventProcessing
in class AbstractDESSolver
- Returns:
- Does the solver do the event processing itself?