|Code Listing by Gerd Steinebach|
This is a MATLAB-implementation of ROCK4 (Abdulle & Medovikov)for the numerical solution of a (mildly) stiff system of first order differential equations ODEs y'=f(t,y).
ROCK4 is based on a family of second order explicit Runge-Kutta methods with nearly optimal stability domain on the negative real axis.
Usage is the same as ode23s:
[TOUT,YOUT] = rock(ODEFUN,TSPAN,Y0)
Use newton_pendulum and the simulation and animation will start.
RODASP is a fourth order ROW-method for solving ODEs y'=f(t,y) and Index-1 DAE problems M y' = f(t,y).
Usage is the same as ode23s or other MATLAB ode-solver.
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