T
- the type of the field elementspublic class ClassicalRungeKuttaFieldIntegrator<T extends RealFieldElement<T>> extends RungeKuttaFieldIntegrator<T>
This method is an explicit Runge-Kutta method, its Butcher-array is the following one :
0 | 0 0 0 0 1/2 | 1/2 0 0 0 1/2 | 0 1/2 0 0 1 | 0 0 1 0 |-------------------- | 1/6 1/3 1/3 1/6
EulerFieldIntegrator
,
GillFieldIntegrator
,
MidpointFieldIntegrator
,
ThreeEighthesFieldIntegrator
,
LutherFieldIntegrator
Constructor and Description |
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ClassicalRungeKuttaFieldIntegrator(Field<T> field,
T step)
Simple constructor.
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Modifier and Type | Method and Description |
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protected org.apache.commons.math3.ode.nonstiff.ClassicalRungeKuttaFieldStepInterpolator<T> |
createInterpolator(boolean forward,
T[][] yDotK,
FieldODEStateAndDerivative<T> globalPreviousState,
FieldODEStateAndDerivative<T> globalCurrentState,
FieldEquationsMapper<T> mapper)
Create an interpolator.
|
T[][] |
getA()
Get the internal weights from Butcher array (without the first empty row).
|
T[] |
getB()
Get the external weights for the high order method from Butcher array.
|
T[] |
getC()
Get the time steps from Butcher array (without the first zero).
|
fraction, integrate, singleStep
acceptStep, addEventHandler, addEventHandler, addStepHandler, clearEventHandlers, clearStepHandlers, computeDerivatives, getCurrentSignedStepsize, getCurrentStepStart, getEquations, getEvaluations, getEvaluationsCounter, getEventHandlers, getField, getMaxEvaluations, getName, getStepHandlers, getStepSize, getStepStart, initIntegration, isLastStep, resetOccurred, sanityChecks, setIsLastStep, setMaxEvaluations, setStateInitialized, setStepSize, setStepStart
public T[] getC()
public T[][] getA()
public T[] getB()
protected org.apache.commons.math3.ode.nonstiff.ClassicalRungeKuttaFieldStepInterpolator<T> createInterpolator(boolean forward, T[][] yDotK, FieldODEStateAndDerivative<T> globalPreviousState, FieldODEStateAndDerivative<T> globalCurrentState, FieldEquationsMapper<T> mapper)
createInterpolator
in class RungeKuttaFieldIntegrator<T extends RealFieldElement<T>>
forward
- integration direction indicatoryDotK
- slopes at the intermediate pointsglobalPreviousState
- start of the global stepglobalCurrentState
- end of the global stepmapper
- equations mapper for the all equationsCopyright © 2003–2016 The Apache Software Foundation. All rights reserved.