Re: [deal.II] Function objects and problem parameters

[Aiden Huffman]

Well I'll be darned, I can't recreate the error and it works now. Funny how 
that is. Thanks for your response regardless, sorry it turned out to be 
something dull.

I'll make sure to include a minimal working example next time. I figured I 
had just been approaching the whole thing wrong in the first place and that 
someone would end up directing me to a step.

Cheers,
Aiden
On Wednesday, October 11, 2023 at 7:27:28 PM UTC-4 Wolfgang Bangerth wrote:

>
> On 10/11/23 13:44, Aiden Huffman wrote:
> > 
> > I was trying to create a child of the Function class but this resulted 
> > in compiler errors or what seemed like deal.II panicking. I am more 
> > happy to share what I tried. But to be honest I am not sure how to 
> > construct the right object, or even if I am thinking about it correctly. 
> > Is there a tutorial step I should go back and review? I am still new to 
> > C++, so I appreciate any advice.
>
> Pro tip: If you get "compiler errors or what seemed like deal.II 
> panicking", show us what exactly it is you did and what is happening :-)
>
> Basically, your question is of the form "I did a thing, but it doesn't 
> work; can you help?" But we really can't, unless you show us what you 
> did and what happens when you give it to the compiler!
>
> Best
> W.
>

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Re: [deal.II] Function objects and problem parameters

[Wolfgang Bangerth]

On 10/11/23 13:44, Aiden Huffman wrote:


I was trying to create a child of the Function class but this resulted 
in compiler errors or what seemed like deal.II panicking. I am more 
happy to share what I tried. But to be honest I am not sure how to 
construct the right object, or even if I am thinking about it correctly. 
Is there a tutorial step I should go back and review? I am still new to 
C++, so I appreciate any advice.


Pro tip: If you get "compiler errors or what seemed like deal.II 
panicking", show us what exactly it is you did and what is happening :-)


Basically, your question is of the form "I did a thing, but it doesn't 
work; can you help?" But we really can't, unless you show us what you 
did and what happens when you give it to the compiler!


Best
 W.

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[deal.II] Function objects and problem parameters

[Aiden Huffman]

Hi everyone,

Thanks for your time, I'd love any feedback you have. I wrote a very simple 
reaction-diffusion problem inspired by Step-23 here:

https://github.com/aiden-huffman/reactionDiffusion-dealii/blob/main/code/main.cc
 

I am trying to figure out the best way to replace the implementation in line 
202 

 with 
something that returns the steady-state, in this case (a+b, b/(a+b)^2) for 
Q and R respectively, plus a small random number.

I was trying to create a child of the Function class but this resulted in 
compiler errors or what seemed like deal.II panicking. I am more happy to 
share what I tried. But to be honest I am not sure how to construct the 
right object, or even if I am thinking about it correctly. Is there a 
tutorial step I should go back and review? I am still new to C++, so I 
appreciate any advice.

-- 
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