package odend; import Jama.*; /** * solves a given nd ODE by giving the "next" value for x <br> * generic version */ public abstract class ODESolver { /** ODE to be solved */ protected ODE ode; /** current time value */ public double t; /** current 'poimport Jama.*;sition' values */ public Matrix x; /** sets ode and initial values */ public ODESolver(ODE ode) { this.ode = ode; t = ode.t0; x = ode.x0.copy(); } /** computes x(t+dt)<br> * updates x, t accordingly */ public abstract void nextStep(double dt); }