Hi:
    Sorry about this, the SourceForge list-serv search functionality was 
down, had the idea to just use Google Search after I sent the first 
email, I found a recent thread that addresses this, but I am not sure 
where it is going:

Re: [Libmesh-users] EulerSolver::element_residual

Mladen Jurak
Thu, 22 Jan 2009 11:07:37 -0800

Roy Stogner wrote:
 > 
 > Would it suffice to have an elem_rate_solution available, which
 > contained (u_n-u_p)/deltat on each variable?  I might be adding that
 > for one of my own applications and to make it simpler to write user
 > code with nonlinear mass matrices again.
 > ---
 > Roy
 >
 >
 It would be nice to have "(u_n-u_p)/deltat" or "u_p". I would prefer
 some "elem_old_solution" in DifferentiableSystem class.

Mladen


-- 
Nasser Mohieddin Abukhdeir
Graduate Student (Materials Modeling Research Group)
McGill University - Department of Chemical Engineering
http://webpages.mcgill.ca/students/nabukh/web/
http://mmrg.chemeng.mcgill.ca/


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