Package cnuphys.rk4

Interface IAdvance

public interface IAdvance

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    advance(double t, double[] y, double[] dydt, double h, IDerivative deriv, double[] yout, double[] error)
    Advance the solution by one step of the independent variable.
    boolean
    computesError()
    Reports whether this advancer knows how to compute an error array

  • Method Details

    • advance

      void advance(double t, double[] y, double[] dydt, double h, IDerivative deriv, double[] yout, double[] error)
      Advance the solution by one step of the independent variable.
      Parameters:
      t - the value of the independent variable (e.g., t) (input).
      y - the values of the state vector (usually [x,y,z,dx/dt, dy/dt, dz/dt]) at t (input).
      dydt - values of the derivative at the current t (before advance) (input).
      h - the current step size (input)
      deriv - the function (interface) that can compute the derivatives. That is where the problem specificity resides (input).
      yout - where the state vector at the next step will be stored (output)
      error - the error vector which is filled in if the advancer knows how to compute errors

    • computesError

      boolean computesError()
      Reports whether this advancer knows how to compute an error array
      Returns:
      true if this advancer knows how to compute errors