Class HighamHall54Integrator
- java.lang.Object
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- org.apache.commons.math.ode.AbstractIntegrator
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- org.apache.commons.math.ode.nonstiff.AdaptiveStepsizeIntegrator
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- org.apache.commons.math.ode.nonstiff.EmbeddedRungeKuttaIntegrator
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- org.apache.commons.math.ode.nonstiff.HighamHall54Integrator
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- All Implemented Interfaces:
FirstOrderIntegrator
,ODEIntegrator
public class HighamHall54Integrator extends EmbeddedRungeKuttaIntegrator
This class implements the 5(4) Higham and Hall integrator for Ordinary Differential Equations.This integrator is an embedded Runge-Kutta integrator of order 5(4) used in local extrapolation mode (i.e. the solution is computed using the high order formula) with stepsize control (and automatic step initialization) and continuous output. This method uses 7 functions evaluations per step.
- Since:
- 1.2
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Constructor Summary
Constructors Constructor Description HighamHall54Integrator(double minStep, double maxStep, double[] vecAbsoluteTolerance, double[] vecRelativeTolerance)
Simple constructor.HighamHall54Integrator(double minStep, double maxStep, double scalAbsoluteTolerance, double scalRelativeTolerance)
Simple constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getOrder()
Get the order of the method.-
Methods inherited from class org.apache.commons.math.ode.nonstiff.EmbeddedRungeKuttaIntegrator
getMaxGrowth, getMinReduction, getSafety, integrate, setMaxGrowth, setMinReduction, setSafety
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Methods inherited from class org.apache.commons.math.ode.nonstiff.AdaptiveStepsizeIntegrator
getCurrentStepStart, getMaxStep, getMinStep, initializeStep, setInitialStepSize
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Methods inherited from class org.apache.commons.math.ode.AbstractIntegrator
addEventHandler, addStepHandler, clearEventHandlers, clearStepHandlers, computeDerivatives, getCurrentSignedStepsize, getEvaluations, getEventHandlers, getMaxEvaluations, getName, getStepHandlers, setMaxEvaluations
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Constructor Detail
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HighamHall54Integrator
public HighamHall54Integrator(double minStep, double maxStep, double scalAbsoluteTolerance, double scalRelativeTolerance)
Simple constructor. Build a fifth order Higham and Hall integrator with the given step bounds- Parameters:
minStep
- minimal step (must be positive even for backward integration), the last step can be smaller than thismaxStep
- maximal step (must be positive even for backward integration)scalAbsoluteTolerance
- allowed absolute errorscalRelativeTolerance
- allowed relative error
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HighamHall54Integrator
public HighamHall54Integrator(double minStep, double maxStep, double[] vecAbsoluteTolerance, double[] vecRelativeTolerance)
Simple constructor. Build a fifth order Higham and Hall integrator with the given step bounds- Parameters:
minStep
- minimal step (must be positive even for backward integration), the last step can be smaller than thismaxStep
- maximal step (must be positive even for backward integration)vecAbsoluteTolerance
- allowed absolute errorvecRelativeTolerance
- allowed relative error
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Method Detail
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getOrder
public int getOrder()
Get the order of the method.- Specified by:
getOrder
in classEmbeddedRungeKuttaIntegrator
- Returns:
- order of the method
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