Thank You Henrik,
Problem solved
Hi Nirmalya,
sorry, I should have looked more closely: There are two arguments, => Try Plot3D instead of Plot.
Henrik
Hi Tried that. thank you.
Now the output says: Plot::nonopt: Options expected (instead of {X,0.001,L}) beyond position 2 in Plot[V[t,X]/. sol,{t,0,1000},{X,0.001,L}]. An option must be a rule or a list of rules. >>
Try Plot instead of plot.
