org.apache.commons.math.ode.jacobians
Class FirstOrderIntegratorWithJacobians.MappingWrapper

java.lang.Object
  org.apache.commons.math.ode.jacobians.FirstOrderIntegratorWithJacobians.MappingWrapper

All Implemented Interfaces:

FirstOrderDifferentialEquations

Enclosing class:

FirstOrderIntegratorWithJacobians

private class FirstOrderIntegratorWithJacobians.MappingWrapper
extends Object
implements FirstOrderDifferentialEquations

Wrapper class used to map state and jacobians into compound state.

Field Summary

private double[][]	dFdP Derivatives of yDot with respect to parameters.
private double[][]	dFdY Derivatives of yDot with respect to state.
private double[]	y Current state.
private double[]	yDot Time derivative of the current state.

Constructor Summary

FirstOrderIntegratorWithJacobians.MappingWrapper()
Simple constructor.

Method Summary

void	computeDerivatives(double t, double[] z, double[] zDot) Get the current time derivative of the state vector.
int	getDimension() Get the dimension of the problem.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

y

private final double[] y

Current state.

yDot

private final double[] yDot

Time derivative of the current state.

dFdY

private final double[][] dFdY

Derivatives of yDot with respect to state.

dFdP

private final double[][] dFdP

Derivatives of yDot with respect to parameters.

Constructor Detail

FirstOrderIntegratorWithJacobians.MappingWrapper

public FirstOrderIntegratorWithJacobians.MappingWrapper()

Simple constructor.

Method Detail

getDimension

public int getDimension()

Get the dimension of the problem.

Specified by:

getDimension in interface FirstOrderDifferentialEquations

Returns:

dimension of the problem

computeDerivatives

public void computeDerivatives(double t,
                               double[] z,
                               double[] zDot)
                        throws DerivativeException

Get the current time derivative of the state vector.

Specified by:

computeDerivatives in interface FirstOrderDifferentialEquations

Parameters:

t - current value of the independent time variable

z - array containing the current value of the state vector

zDot - placeholder array where to put the time derivative of the state vector

Throws:

DerivativeException - this exception is propagated to the caller if the underlying user function triggers one