ODESolverEuler

package odeadapt;

/** 
 * ODESolverEuler.java
 * solves a given ODE by giving the "next" value for x 
 *  using simple Euler scheme
 */
public class ODESolverEuler extends ODESingleStepSolver {

  /**
   * construct solver for a given ODE
   */
  public ODESolverEuler(ODE ode) {
    super(ode);
    order = 1;
  }

  /*
   * integrate until t + h
   * using the first order Euler scheme
   */
  public int nextStep(double h) {
    // x += h * ode.f(x, t);
    x.plusEquals( ode.f(x, t).times(h) );
    t += h;
    return 1;
  }
}