Class DormandPrince853StepInterpolator

    • Field Detail

      • serialVersionUID

        private static final long serialVersionUID
        Serializable version identifier.
        See Also:
        Constant Field Values
      • B_10

        private static final double B_10
        Propagation weights, element 10.
        See Also:
        Constant Field Values
      • B_11

        private static final double B_11
        Propagation weights, element 11.
        See Also:
        Constant Field Values
      • B_12

        private static final double B_12
        Propagation weights, element 12.
        See Also:
        Constant Field Values
      • C14

        private static final double C14
        Time step for stage 14 (interpolation only).
        See Also:
        Constant Field Values
      • K14_01

        private static final double K14_01
        Internal weights for stage 14, element 1.
        See Also:
        Constant Field Values
      • K14_06

        private static final double K14_06
        Internal weights for stage 14, element 6.
        See Also:
        Constant Field Values
      • K14_07

        private static final double K14_07
        Internal weights for stage 14, element 7.
        See Also:
        Constant Field Values
      • K14_08

        private static final double K14_08
        Internal weights for stage 14, element 8.
        See Also:
        Constant Field Values
      • K14_09

        private static final double K14_09
        Internal weights for stage 14, element 9.
        See Also:
        Constant Field Values
      • K14_10

        private static final double K14_10
        Internal weights for stage 14, element 10.
        See Also:
        Constant Field Values
      • K14_11

        private static final double K14_11
        Internal weights for stage 14, element 11.
        See Also:
        Constant Field Values
      • K14_12

        private static final double K14_12
        Internal weights for stage 14, element 12.
        See Also:
        Constant Field Values
      • K14_13

        private static final double K14_13
        Internal weights for stage 14, element 13.
        See Also:
        Constant Field Values
      • C15

        private static final double C15
        Time step for stage 15 (interpolation only).
        See Also:
        Constant Field Values
      • K15_01

        private static final double K15_01
        Internal weights for stage 15, element 1.
        See Also:
        Constant Field Values
      • K15_06

        private static final double K15_06
        Internal weights for stage 15, element 6.
        See Also:
        Constant Field Values
      • K15_07

        private static final double K15_07
        Internal weights for stage 15, element 7.
        See Also:
        Constant Field Values
      • K15_08

        private static final double K15_08
        Internal weights for stage 15, element 8.
        See Also:
        Constant Field Values
      • K15_09

        private static final double K15_09
        Internal weights for stage 15, element 9.
        See Also:
        Constant Field Values
      • K15_10

        private static final double K15_10
        Internal weights for stage 15, element 10.
        See Also:
        Constant Field Values
      • K15_11

        private static final double K15_11
        Internal weights for stage 15, element 11.
        See Also:
        Constant Field Values
      • K15_12

        private static final double K15_12
        Internal weights for stage 15, element 12.
        See Also:
        Constant Field Values
      • K15_13

        private static final double K15_13
        Internal weights for stage 15, element 13.
        See Also:
        Constant Field Values
      • K15_14

        private static final double K15_14
        Internal weights for stage 15, element 14.
        See Also:
        Constant Field Values
      • C16

        private static final double C16
        Time step for stage 16 (interpolation only).
        See Also:
        Constant Field Values
      • K16_01

        private static final double K16_01
        Internal weights for stage 16, element 1.
        See Also:
        Constant Field Values
      • K16_06

        private static final double K16_06
        Internal weights for stage 16, element 6.
        See Also:
        Constant Field Values
      • K16_07

        private static final double K16_07
        Internal weights for stage 16, element 7.
        See Also:
        Constant Field Values
      • K16_08

        private static final double K16_08
        Internal weights for stage 16, element 8.
        See Also:
        Constant Field Values
      • K16_09

        private static final double K16_09
        Internal weights for stage 16, element 9.
        See Also:
        Constant Field Values
      • K16_10

        private static final double K16_10
        Internal weights for stage 16, element 10.
        See Also:
        Constant Field Values
      • K16_11

        private static final double K16_11
        Internal weights for stage 16, element 11.
        See Also:
        Constant Field Values
      • K16_12

        private static final double K16_12
        Internal weights for stage 16, element 12.
        See Also:
        Constant Field Values
      • K16_13

        private static final double K16_13
        Internal weights for stage 16, element 13.
        See Also:
        Constant Field Values
      • K16_14

        private static final double K16_14
        Internal weights for stage 16, element 14.
        See Also:
        Constant Field Values
      • K16_15

        private static final double K16_15
        Internal weights for stage 16, element 15.
        See Also:
        Constant Field Values
      • D

        private static final double[][] D
        Interpolation weights. (beware that only the non-null values are in the table)
      • yDotKLast

        private double[][] yDotKLast
        Last evaluations.
      • v

        private double[][] v
        Vectors for interpolation.
      • vectorsInitialized

        private boolean vectorsInitialized
        Initialization indicator for the interpolation vectors.
    • Method Detail

      • reinitialize

        public void reinitialize​(AbstractIntegrator integrator,
                                 double[] y,
                                 double[][] yDotK,
                                 boolean forward,
                                 EquationsMapper primaryMapper,
                                 EquationsMapper[] secondaryMappers)
        Reinitialize the instance

        Some Runge-Kutta integrators need fewer functions evaluations than their counterpart step interpolators. So the interpolator should perform the last evaluations they need by themselves. The RungeKuttaIntegrator and EmbeddedRungeKuttaIntegrator abstract classes call this method in order to let the step interpolator perform the evaluations it needs. These evaluations will be performed during the call to doFinalize if any, i.e. only if the step handler either calls the finalizeStep method or the getInterpolatedState method (for an interpolator which needs a finalization) or if it clones the step interpolator.

        Overrides:
        reinitialize in class RungeKuttaStepInterpolator
        Parameters:
        integrator - integrator being used
        y - reference to the integrator array holding the state at the end of the step
        yDotK - reference to the integrator array holding all the intermediate slopes
        forward - integration direction indicator
        primaryMapper - equations mapper for the primary equations set
        secondaryMappers - equations mappers for the secondary equations sets
      • computeInterpolatedStateAndDerivatives

        protected void computeInterpolatedStateAndDerivatives​(double theta,
                                                              double oneMinusThetaH)
                                                       throws MaxCountExceededException
        Compute the state and derivatives at the interpolated time. This is the main processing method that should be implemented by the derived classes to perform the interpolation.
        Specified by:
        computeInterpolatedStateAndDerivatives in class AbstractStepInterpolator
        Parameters:
        theta - normalized interpolation abscissa within the step (theta is zero at the previous time step and one at the current time step)
        oneMinusThetaH - time gap between the interpolated time and the current time
        Throws:
        MaxCountExceededException - if the number of functions evaluations is exceeded
      • writeExternal

        public void writeExternal​(java.io.ObjectOutput out)
                           throws java.io.IOException
        Specified by:
        writeExternal in interface java.io.Externalizable
        Overrides:
        writeExternal in class RungeKuttaStepInterpolator
        Throws:
        java.io.IOException
      • readExternal

        public void readExternal​(java.io.ObjectInput in)
                          throws java.io.IOException,
                                 java.lang.ClassNotFoundException
        Specified by:
        readExternal in interface java.io.Externalizable
        Overrides:
        readExternal in class RungeKuttaStepInterpolator
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException