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May
23
comment Plotting with NDSolve`StateData`
Thanks for making the distinction between u[t,x] and u[x]. It wasn't obvious to me! :)
May
22
comment Plotting with NDSolve`StateData`
You know, I'll have to check my [ and see if all is well with my code.
May
22
comment Plotting with NDSolve`StateData`
@acl I did have a look at that. When I replaced the u[t,x,y] equation with u[t,x], all I got was blank plots.
May
22
asked Plotting with NDSolve`StateData`
May
22
comment Starting NDSolve from intermediate time step?
Why am I not able to plot the solution u[t,x] with Plot3D[ Evaluate[u[t, x]], {t, 2, 5}, {x, 0, 5} ] OR Plot3D[ u[t, x]/.sol, {t, 2, 5}, {x, 0, 5} ] where sol= NDSolve`ProcessSolutions[state, "Forward"]
May
15
revised Starting NDSolve from intermediate time step?
defined convergence criterion as that of attaining steady state in this example.
May
15
comment Starting NDSolve from intermediate time step?
Awesome! I'll look into the documentation. This is quite nifty! (Not taking anything away from the previous answerer :))
May
15
comment Starting NDSolve from intermediate time step?
Ok. Thanks! I actually just learned the use of @!
May
15
accepted Starting NDSolve from intermediate time step?
May
15
comment Starting NDSolve from intermediate time step?
Thanks! Just so that I understand this right sol2 is the solution from t=2 to t=5...?
May
15
comment Starting NDSolve from intermediate time step?
@DanielLichtblau Yes, steady state.
May
14
asked Starting NDSolve from intermediate time step?
Apr
6
comment Setting the DifferenceOrder Option
Aah! I see that! Thanks!
Apr
5
comment Setting the DifferenceOrder Option
@rcoyller Well, when I solve the example differential equation that you have and load the InterpolatingFunctionAnatomy package and ask for the order via sol["InterpolationOrder"], it DOES NOT give me the order... it just pops out {{y->InterpolatingFunction[{{0.,6.28319}},<>]}}[InterpolationOrder]
Apr
5
comment Setting the DifferenceOrder Option
I am all ears!!!!!!
Apr
4
comment Setting the DifferenceOrder Option
Thanks! I was thinking about InterpolatingFunctionAnatomy
Apr
3
comment Getting Integrate to perform numerical integration
@F'x Oh, just curious!
Apr
2
comment Getting Integrate to perform numerical integration
So did you use Timing or AbsoluteTiming to figure out how long it took for the code to run?
Apr
2
comment Controlling the time step in NDSolve?
@AlbertRetey Do you think there is a way to see what the Jacobian looks like though?
Apr
1
comment Controlling the time step in NDSolve?
@AlbertRetey sure thing man! No beef! :P It would be great to figure a way out to actually meddle with the internals of mathematica like one can do with say ode15 in MATLAB! Thanks for helping!