T - the type of the field elementspublic class ThreeEighthesFieldIntegrator<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
1/3 | 1/3 0 0 0
2/3 |-1/3 1 0 0
1 | 1 -1 1 0
|--------------------
| 1/8 3/8 3/8 1/8
| Constructor and Description |
|---|
ThreeEighthesFieldIntegrator(Field<T> field,
T step)
Simple constructor.
|
| Modifier and Type | Method and Description |
|---|---|
protected org.apache.commons.math3.ode.nonstiff.ThreeEighthesFieldStepInterpolator<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, singleStepacceptStep, 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, setStepStartpublic ThreeEighthesFieldIntegrator(Field<T> field, T step)
field - field to which the time and state vector elements belongstep - integration steppublic T[] getC()
public T[][] getA()
public T[] getB()
protected org.apache.commons.math3.ode.nonstiff.ThreeEighthesFieldStepInterpolator<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.