Three explicit time dependent Simulations of the Rowthorne Model (Raiser,
Schaffer, Schuchhardt)
Parameters set to b=1, c=0.6, L=1.0 in all simulations.
Initial conditions: ya = 2.5, ys=2.5, yi = 1.5, 1.5, 4.5, always implying
Yi(0)=Li(0) =0.
yi = 1.5
yi = 2.5
yi = 4.5
