Re: lsode -- a do-it-all DGL solver?

[Matthias Brennwald]

Thanks for this pointer. I am however unsure whether
  (i) lsode analyzes the differential equation to determine if the
equation is stiff or non-stiff, or 
  (ii)  the user has to tell lsode about the stiffness of the equation.

Is it (i) or (ii)?

Matthias


On Wed, 2007-08-08 at 08:44 +0900, Tatsuro MATSUOKA wrote:
> Please go to the Alan C. Hindmarsh's web site.
> 
> http://www.llnl.gov/CASC/odepack/
> 
> You can get papers in the pdf style.
> 
>   *******************************************
>   Tatsuro MATSUOKA 
>   Email : tmacchant_at_yahoo_dot_co dot_jp
>   (_at_ --> @; _dot --> . )
>   *******************************************
> 
>  
> 
> --- Matthias Brennwald <address@hidden> wrote:
> 
> > Dear all
> > 
> > I'm not very much at home with the numerical theory
> > behind solving 
> > differential equations. Therefore my question: how
> > do I decide which DGL 
> > solver I should use? I have the impression that
> > 'lsode' seems to be a 
> > very advanced solver that is suitabe for most (all?)
> > kinds of DGLs. Is 
> > this correct? Also, how is it different from other
> > solvers like ode23 or 
> > ode45 (available in Matlab and Octave forge)? What
> > are the 
> > (dis)advantages of the different solvers?
> > 
> > Matthias
> > _______________________________________________
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> > address@hidden
> > https://www.cae.wisc.edu/mailman/listinfo/help-octave
> > 
> 
> 
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