Re: [ff3d-users] Problems

[Stephane Del Pino]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Dear Robert.

On Tuesday 17 February 2004 18:45, Robert Li wrote:
> 1. in EmbededFunctions.hpp/cpp
> except for sin , the output message of other template
> function(cos,tan...) is not correct.
> such as when I set boundary "u = cos(z1)  on 8;",
> the output message is:
>
>  u = sin(boolop) on (8)

I think this is related to the #7545

> 2.Can we save output file to different folder.
> Such as :
> save(medit,".\\output\\test2",M,dos);

Yes, if the directory exists. You can also specify the full path.

> 3.When I set boundary condition on mesh such as
> u = -1  on M zmin;
> u = 1  on M zmax;
> sometimes, the result output data on boundry in
> file(.bb) is not just -1 or 1, but close value
> -0.99998 or 0.99998.
> Could you tell me why?
Their could be 2 reasons:
- - the linear system is solved using Conjugate Gradient so the solution may 
not 
be exacte. You can try using 'cg(epsilon=1E-6)' for example to change the 
required precision...
- - If you use penalty, dirichlet conditions are not exactly imposed.

Best regards,
Stephane.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)

iD8DBQFAM6tSbZyhKhZwdc0RAkZaAKCWWOj+B1lkNVZbXJahX2dq1cIcfACeOjvD
sdPQH7/cX6jtPCY6AuOUYIY=
=cVo9
-----END PGP SIGNATURE-----