Examples of EquationsMapper

org.apache.commons.math3.ode.EquationsMapper
Class mapping the part of a complete state or derivative that pertains to a specific differential equation.
Instances of this class are guaranteed to be immutable.
@see SecondaryEquations @since 3.0

Examples of org.apache.commons.math3.ode.EquationsMapper

            // predict a first estimate of the state at step end
            final double stepEnd = stepStart + stepSize;
            interpolator.shift();
            interpolator.setInterpolatedTime(stepEnd);
            final ExpandableStatefulODE expandable = getExpandable();
            final EquationsMapper primary = expandable.getPrimaryMapper();
            primary.insertEquationData(interpolator.getInterpolatedState(), y);
            int index = 0;
            for (final EquationsMapper secondary : expandable.getSecondaryMappers()) {
                secondary.insertEquationData(interpolator.getInterpolatedSecondaryState(index), y);
                ++index;
            }

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Examples of org.apache.commons.math3.ode.EquationsMapper


                // predict a first estimate of the state at step end (P in the PECE sequence)
                final double stepEnd = stepStart + stepSize;
                interpolator.setInterpolatedTime(stepEnd);
                final ExpandableStatefulODE expandable = getExpandable();
                final EquationsMapper primary = expandable.getPrimaryMapper();
                primary.insertEquationData(interpolator.getInterpolatedState(), yTmp);
                int index = 0;
                for (final EquationsMapper secondary : expandable.getSecondaryMappers()) {
                    secondary.insertEquationData(interpolator.getInterpolatedSecondaryState(index), yTmp);
                    ++index;
                }

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Examples of org.apache.commons.math3.ode.EquationsMapper

   * @param yDot reference to the integrator array holding the state
   * derivative at some arbitrary point within the step
   * @param forward integration direction indicator
   */
  public DummyStepInterpolator(final double[] y, final double[] yDot, final boolean forward) {
    super(y, forward, new EquationsMapper(0, y.length), new EquationsMapper[0]);
    currentDerivative = yDot;
  }

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Examples of org.apache.commons.math3.ode.EquationsMapper


                // predict a first estimate of the state at step end (P in the PECE sequence)
                final double stepEnd = stepStart + stepSize;
                interpolator.setInterpolatedTime(stepEnd);
                final ExpandableStatefulODE expandable = getExpandable();
                final EquationsMapper primary = expandable.getPrimaryMapper();
                primary.insertEquationData(interpolator.getInterpolatedState(), yTmp);
                int index = 0;
                for (final EquationsMapper secondary : expandable.getSecondaryMappers()) {
                    secondary.insertEquationData(interpolator.getInterpolatedSecondaryState(index), yTmp);
                    ++index;
                }

View Full Code Here

Examples of org.apache.commons.math3.ode.EquationsMapper

            // predict a first estimate of the state at step end
            final double stepEnd = stepStart + stepSize;
            interpolator.shift();
            interpolator.setInterpolatedTime(stepEnd);
            final ExpandableStatefulODE expandable = getExpandable();
            final EquationsMapper primary = expandable.getPrimaryMapper();
            primary.insertEquationData(interpolator.getInterpolatedState(), y);
            int index = 0;
            for (final EquationsMapper secondary : expandable.getSecondaryMappers()) {
                secondary.insertEquationData(interpolator.getInterpolatedSecondaryState(index), y);
                ++index;
            }

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Examples of org.apache.commons.math3.ode.EquationsMapper

   * @param yDot reference to the integrator array holding the state
   * derivative at some arbitrary point within the step
   * @param forward integration direction indicator
   */
  public DummyStepInterpolator(final double[] y, final double[] yDot, final boolean forward) {
    super(y, forward, new EquationsMapper(0, y.length), new EquationsMapper[0]);
    currentDerivative = yDot;
  }

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Examples of org.apache.commons.math3.ode.EquationsMapper


    double[]   y    =   { 0.0, 1.0, -2.0 };
    double[][] yDot = { { 1.0, 2.0, -2.0 } };
    EulerStepInterpolator interpolator = new EulerStepInterpolator();
    interpolator.reinitialize(new DummyIntegrator(interpolator), y, yDot, true,
                              new EquationsMapper(0, y.length),
                              new EquationsMapper[0]);
    interpolator.storeTime(0);
    interpolator.shift();
    interpolator.storeTime(1);

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Examples of org.apache.commons.math3.ode.EquationsMapper


    double[] y = y0.clone();
    double[][] yDot = { new double[y0.length] };
    EulerStepInterpolator interpolator = new EulerStepInterpolator();
    interpolator.reinitialize(new DummyIntegrator(interpolator), y, yDot, true,
                              new EquationsMapper(0, y.length),
                              new EquationsMapper[0]);
    interpolator.storeTime(t0);


    double dt = 1.0;
    interpolator.shift();

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Examples of org.apache.commons.math3.ode.EquationsMapper


    double[]   y    =   { 0.0, 1.0, -2.0 };
    double[][] yDot = { { 1.0, 2.0, -2.0 } };
    EulerStepInterpolator interpolator = new EulerStepInterpolator();
    interpolator.reinitialize(new DummyIntegrator(interpolator), y, yDot, true,
                              new EquationsMapper(0, y.length),
                              new EquationsMapper[0]);
    interpolator.storeTime(0);
    interpolator.shift();
    y[0] =  1.0;
    y[1] =  3.0;

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Examples of org.apache.commons.math3.ode.EquationsMapper

   * @param yDot reference to the integrator array holding the state
   * derivative at some arbitrary point within the step
   * @param forward integration direction indicator
   */
  public DummyStepInterpolator(final double[] y, final double[] yDot, final boolean forward) {
    super(y, forward, new EquationsMapper(0, y.length), new EquationsMapper[0]);
    currentDerivative = yDot;
  }

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