It looks like code.
It looks like code that does not define "n" before using it.
It looks like code that has no comments.
It looks like code that does not pre-allocate arrays.
It looks like code that could have its performance improved by calculating (C(i+1)-C(i))*V once per loop and then using that result multiple times.
Does it solve the ODE properly? We don't know, since you did not document the ODE to be solved.
