getfem-users
[Top][All Lists]

Re: [Getfem-users] Position dependent elliptic problem

 From: Mattia Assanelli Subject: Re: [Getfem-users] Position dependent elliptic problem Date: Mon, 06 Jul 2009 18:04:22 +0200 User-agent: Thunderbird 2.0.0.22 (Windows/20090605)

```A(x) for me isn't a function, but a vector...

Arvind Ajoy ha scritto:
```
```Hi Mattia,

Try the following to set A = cos(pi*x) in a 1-D problem.

A = gf_mesh_fem_get(MFU, 'eval', {'cos(pi * x)'});

Arvind

```
On Mon, Jul 6, 2009 at 2:42 PM, Mattia Assanelli <address@hidden <mailto:address@hidden>> wrote:
```
Good morning everybody,
first of all I'd like to thank people reading and suggesting solutions
in this list: I always found a solution for my trivial problems!
I have to set a position dependent 'A' parameter in a 'generic
elliptic'
problem. I think I have to use this function and pass the 'A'
parameter
as 'V'.

gf_mdbrick_set

name, MF,V | V) : change the value of a brick parameter. V should
contain the new parameter value. If a meshfem is given , V should hold
the field values over that meshfem (i.e. its last dimension should be
gf_mesh_fem_get

But my question is: "How to format this matrix? V"

Thanks a lot Mattia

_______________________________________________
Getfem-users mailing list
https://mail.gna.org/listinfo/getfem-users

```
```

--
-------------------------------------------------
Mattia Assanelli
Ph.D. Student
Politecnico di Milano
Dipartimento di Elettronica ed Informazione
Phone:  +39 02 2399 3735