Package jline.solvers.fluid

Class LSODAExt

java.lang.Object
odesolver.LSODA
jline.solvers.fluid.LSODAExt
All Implemented Interfaces:
org.apache.commons.math3.ode.FirstOrderIntegrator, org.apache.commons.math3.ode.ODEIntegrator
public class LSODAExt extends odesolver.LSODA
Extended LSODA solver that supports configurable maximum internal steps. The upstream lsoda-java library hardcodes mxstep=1000000 inside the lsoda() method, ignoring any reflection-based field setting. This subclass overrides integrate() to call the public lsoda() method directly with the desired mxstep value.

  • Field Summary

    Fields inherited from class odesolver.LSODA

    istate, ode, tn, write, y

  • Constructor Summary

    Constructors
    Constructor
    Description
    LSODAExt(double minStep, double maxStep, double rtol, double atol, int meth, int miter, int maxSteps)
    Create an LSODAExt solver with configurable max steps.

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    integrate(org.apache.commons.math3.ode.FirstOrderDifferentialEquations equations, double t0, double[] y0, double t, double[] yOut)
     

    Methods inherited from class odesolver.LSODA

    addEventHandler, addEventHandler, addStepHandler, clearEventHandlers, clearStepHandlers, FirstOrderSystem, getCurrentSignedStepsize, getCurrentStepStart, getEvaluations, getEventHandlers, getJacobianEvaluations, getMaxComponent, getMaxEvaluations, getName, getStepHandlers, getStepsTaken, getTvec, getYvec, lsoda, setMaxEvaluations

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • LSODAExt

      public LSODAExt(double minStep, double maxStep, double rtol, double atol, int meth, int miter, int maxSteps)
      Create an LSODAExt solver with configurable max steps.
      Parameters:
      minStep - minimum step size (absolute value)
      maxStep - maximum step size (absolute value)
      rtol - relative tolerance
      atol - absolute tolerance
      meth - method flag (12 = nonstiff/stiff auto)
      miter - iteration method (5 = diagonal Jacobian)
      maxSteps - maximum number of internal steps (replaces hardcoded 1000000)

  • Method Details

    • integrate

      public double integrate(org.apache.commons.math3.ode.FirstOrderDifferentialEquations equations, double t0, double[] y0, double t, double[] yOut)
      Specified by:
      integrate in interface org.apache.commons.math3.ode.FirstOrderIntegrator
      Overrides:
      integrate in class odesolver.LSODA