[R-sig-dyn-mod] Difference between ode.2D and lsodes

[amiller at math.utah.edu]

Hello,
I have been solving a system of PDEs using method of lines and because my
system is stiff, I have been using LSODES for the ode solver. However,
today I tried ode.2D choosing method="LSODES" and found that it is able to
handle larger systems of ODEs than if I just used LSODES. I was wondering
what the difference is between the two solvers?
Thank you,
Anna