Thank you very much for your reply
It seems that I can solve the problems I have now.
Thank you.
Kyusik.
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Kyusik,
[...]
> 3. I calculated l2 norm
> Difference = solution;
> Difference -= exact_solution;
> norm = Difference.l2norm();
>
> But, according to what you mentioned, I calculated l2norm of U_i-U_i_exact
> not l2norm of u_h(x)-u_h_exact(x)
>
Yes, this gives you the l2-norm of U_i-U_i_exact
Dr, Bangerth,
>
>u_h(x) = \sum_i U_i \varphi_i(x)
>
>
First of all, I'm really sorry to bother you continuously...
Could I have please one more question?
I also wanted to calculate l2 norm of |u_h(x)-u_h_exact(x)| (where
u_h_exact(x) is exact solution of u_h(x)).
So what I did is fo
On 10/31/2016 08:11 PM, hanks0...@gmail.com wrote:
But, my question was that in usual tutorial program of deal.II, the vector
solution contains values for U_i not u_h(x).
We use them interchangeably. The *solution vector* that comes out of the
linear solver is U_i, and it corresponds to the *
>
>
> Well, both are the solution -- one is a function of x, the other is a
> vector
> of nodal values, but they ultimately represent the same object. U_i is the
> vector you get out of the linear solver.
>
I'm sorry to make you confused I should have been more specific.
But, my question was
This is one way to do it. You are just projecting J_tor to a finite
element space and use that for output or further processing. As others
have already noted, the only problem I can see is that computing
solution_max may be inaccurate. This is because in general, if you have
Dr. Bangerth,
Thank you very much for your kind reply.
> This is one way to do it. You are just projecting J_tor to a finite
> element space and use that for output or further processing. As others
> have already noted, the only problem I can see is that computing
> solution_max may be inacc
Kyusik,
I'm trying to calculate J_tor= x*solution+solution_max/y
solution is already calculated vector from 3 function (setup_system,
assemble_system, solve)
To do this calculation I added the following three function(setup_Jtor,
assmeble_Jtor, solve_Jtor)
[...]
This is one way to do it. Y
Hi All,
I'm trying to calculate J_tor= x*solution+solution_max/y
solution is already calculated vector from 3 function (setup_system,
assemble_system, solve)
To do this calculation I added the following three function(setup_Jtor,
assmeble_Jtor, solve_Jtor)
template
void Step6::setup_Jtor
