LU
在2023年3月24日星期五 UTC+8 00:46:33 写道：
> On 3/23/23 10:32, RUIJIAN LU wrote:
> >
> > Thanks, you are right. Therefore, when I just create a triangulation by
> > cylinder(), have the coordinates of its vertices already been in
> > cylindrical coordinate（r, phi, z） sy
Hi Dr. Bangerth,
Thanks for your message.
I think the error is like Marc said. And if I call
triangulation.refine_global() before set_manifold(), the error will go
away.
Best,
LU
在2023年3月24日星期五 UTC+8 00:32:04 写道：
> Hi Marc!
> Thanks, you are right. Therefore, when I just create a triangulat
Hi Marc!
Thanks, you are right. Therefore, when I just create a triangulation by
cylinder(), have the coordinates of its vertices already been in
cylindrical coordinate（r, phi, z） system？(Of course, the 'z' should be x.)
If it is right, is fe_values.quadrature_point(q_index)(0) equal to ‘r’,
fe
I think the error is like Marc said. And if I call refine_globle() before
set_manifold(), the error will go away.
Best,
LU
在2023年3月23日星期四 UTC+8 11:48:50 写道：
> On 3/22/23 01:47, RUIJIAN LU wrote:
> >
> > I am a beginner to dealii, now I want to solve an equation on a
Oh, the error occurs after calling triangulation.refine_global(2);
I
在2023年3月22日星期三 UTC+8 15:47:47 写道：
> Hi everyone,
> I am a beginner to dealii, now I want to solve an equation on a
> cylindrical coordinate system. I create a triangulation by cylinder() and
> use CylindricalManifold for it, b
Hi everyone,
I am a beginner to dealii, now I want to solve an equation on a cylindrical
coordinate system. I create a triangulation by cylinder() and use
CylindricalManifold for it, but it has some error. How can I do with it?
error:
Number dealii::Physics::VectorRelations::signed_angle(const
