Re: [deal.II] New development in eigenvector calculation?

2019-11-20 Thread Earl Fairall
Thanks for the replay Wolfgang. And no disrespect to Terry Tao. I had never heard of him before these articles. I guess I am pretty disconnected from the math community! You successfully answered all my questions; however, you now have me curious why the physics community would want to know all (

[deal.II] New development in eigenvector calculation?

2019-11-16 Thread Earl Fairall
Hi everyone, I apologize this is not directly Deal.ii related, but I wanted to share it in case it contains something enlightening for deal.ii developers. A friend of mine in the physics community shared this article: https://terrytao.wordpress.com/2019/08/13/eigenvectors-from-eigenvalues/?fbcli

Re: [deal.II] Sliding mesh-like approach using dealii

2019-06-14 Thread Earl Fairall
As far as I know, there is no slide mesh function per say; however, deal.ii does have a rotate mesh function which is pretty straightforward to use. Presumably if you apply a cylindrical mesh in the airgap with a known number of uniform segments, you can rotate the mesh by an angle corresponding to

Re: [deal.II] Re: Electromagnetic Machine Simulation (Quasi-Poisson Equation in Multiple Domains) Setup

2019-06-04 Thread Earl Fairall
Dear Baoyun, I too have been looking at this exact application. Building the mesh in deal.ii is difficult. Deal.ii only has some very fundamental shapes which require the use of boolean operations for increased complexity. This in itself is not challenging. The challenge is that the mesh nodes mus

Re: [deal.II] Help on manifold ids

2018-11-13 Thread Earl Fairall
here you set > the manifold on the faces? > > L. > > > On 13 Nov 2018, at 7:39, Earl Fairall wrote: > > > > Hi everyone, > > I am having some trouble handling manifold ids. I built a script where > I want every face center with radius <= 50 to have a s

[deal.II] Help on manifold ids

2018-11-12 Thread Earl Fairall
Hi everyone, I am having some trouble handling manifold ids. I built a script where I want every face center with radius <= 50 to have a spherical manifold, and every face center radius > 50 to have a flat manifold. I can make them all flat by default and I have also used “tria.set_all_manifold_i

Re: [deal.II] Re: Computing min and max eigenvalues

2018-10-24 Thread Earl Fairall
I am posing this question purely out of personal interest: what do you mean by maximum and minimum eigenvalue? I am confused by this. Earl On Tue, Oct 23, 2018 at 8:36 AM Michał Wichrowski wrote: > > Dear Bruno > >> >> > 2) The largest eigenvalue is computed instead of the largest one, and, >

[deal.II] Couple questions on mesh operations

2018-10-21 Thread Earl Fairall
First question, Is there a built in function to copy/paste a triangulation? I want to copy and paste a mesh geometry around an axis. I thought about looping through each triangulation manually, but I'm was not sure how to dynamically allocate Triangulations for parameterization. I also checked out

[deal.II] Gridgenerator Trapezoids?

2018-05-28 Thread Earl Fairall
Hi everyone, I am playing with the grid generator functions and I don't see one for trapezoids. Is that correct? Perhaps I am missing something. I am trying to build a gear shaped geometry. Perhaps there is an easier way to do this? Earl -- The deal.II project is located at http://www.dealii.

Re: [deal.II] Re: Windows install issue

2018-05-06 Thread Earl Fairall
bin\Hostx64\x86 3.) Set project as startup project: Right click STEP-X > SET AS STARTUP PROJECT Is this supposed to be happening?? what a day...time for a beer cheers everyone Earl On Thu, May 3, 2018 at 8:30 PM, Earl Fairall wrote: > Yes, I read an article that sugges

Re: [deal.II] Re: Windows install issue

2018-05-03 Thread Earl Fairall
re not using x64 tooling. Are you > using "set PreferredToolArchitecture=x64" in step 6? > > > On Wed, May 2, 2018 at 10:53 AM, Earl Fairall wrote: > > For the record, "step-1.exe" does exist in the debug directory; however > it > > appears to be cor

[deal.II] Re: Windows install issue

2018-05-02 Thread Earl Fairall
g about it running. Earl Fairall p. 815.419.8690 efair...@gmail.com On Wed, May 2, 2018 at 7:20 AM, Earl Fairall wrote: > Hi everyone, > > I have installed dealii on my windows machine, and it went smoother than > expected; however, I am having an issue compiling the example

[deal.II] Windows install issue

2018-05-02 Thread Earl Fairall
Hi everyone, I have installed dealii on my windows machine, and it went smoother than expected; however, I am having an issue compiling the examples. I followed this instruction set: https://github.com/dealii/dealii/wiki/Windows Steps 1-6 work great. I see the .sln. Step 7 fails when I tried to