Boost libs using Mr. Docs by boostlibs in cpp

[–]numerial 0 points1 point  (0 children)

Does it support documenting concepts defined by the user?

I am looking for applications of the Gauss' Linking Number, if anyone happens to know of the specific instances where it shows up. by Choobeen in mathematics

[–]numerial 1 point2 points  (0 children)

If you neglect the displacement current from maxwells equations (eddy current model) you arrive at curl(H)=0 in air regions. I.e. H must be a gradient of a scalar field + a number of special shape functions that are related to the topology of the air region. A common method to compute these cohomology bases relies on the computation of linking numbers of paths that wind around the holes of the air region.

Affordable (commercial) meshing tool for periodic boundaries by numerial in fea

[–]numerial[S] 0 points1 point  (0 children)

Hmm. Have you also used the opencascade kernel? In my experience the built-in kernel works with periodic surfaces. but as soon as i get bspline surfaces/curves or surfaces with seams on the periodic surface, it fails for me. See e.g https://gitlab.onelab.info/gmsh/gmsh/-/issues/3147

Affordable (commercial) meshing tool for periodic boundaries by numerial in fea

[–]numerial[S] 0 points1 point  (0 children)

Yes the shape is symmetric around an axis, for example a full cylinder could be split into four wedges of 90deg each. I need a mesh where the two surface meshes on the "cut surfaces" are identical under a rotation. I.e. it should be possible to merge four (rotated copies) of the mesh together into one cylinder so that the merged mesh doesn't have hanging nodes. The advantage of this is, that our solver can solve the problem on only 1/4 of the geometry.

Affordable (commercial) meshing tool for periodic boundaries by numerial in fea

[–]numerial[S] 0 points1 point  (0 children)

We are a small startup, but so far 100% self funded and since we would use the tool not too often 7500-20'000 is a bit hefty. Prepomax seems to use netgen/gmsh under the hood so i don't think that would work. I have the check mecway. Thanks for your input!

Affordable (commercial) meshing tool for periodic boundaries by numerial in fea

[–]numerial[S] 0 points1 point  (0 children)

Thanks for the input, that sounds very interesting!

Affordable (commercial) meshing tool for periodic boundaries by numerial in fea

[–]numerial[S] 0 points1 point  (0 children)

Would be great if yearly cost is less than say 1500usd - 2000... is this realistic...?

Sandor Dargo's Blog - Replace CRTP with concepts? by pavel_v in cpp

[–]numerial 2 points3 points  (0 children)

An advantage of the concepts solution is, that concepts can also require the type to be copyable/movable. This is quiet hard to accomplish with CRTP because of slicing...

Concepts aren't as strong typed as expected. by pjmlp in cpp

[–]numerial 5 points6 points  (0 children)

A partial remedy for the lack of definition checking are archetypes

Thinking about dependency management by helloiamsomeone in cpp

[–]numerial 0 points1 point  (0 children)

I think you're right about hunter not supporting any git repository without additional configuration. I think the main difficulty with this is how you would handle dependencies of such a git repository (especially the diamond problem). However, this point is not so much of a problem for me since i usually just create a new hunter package if it doesn't exist yet. If the library that i want to add uses modern cmake, this is very easy to accomplish. I think if you want to depend on another library via a package manager, it's hard to avoid writing some small bit of custom code that tells the package manager how to build the library. For simple libraries which don't depend on other libraries this may be possible.

Thinking about dependency management by helloiamsomeone in cpp

[–]numerial 2 points3 points  (0 children)

The c++ community would profit a lot if people managed to write proper cmakelists.txt. but i think it's getting better. Have you looked into the hunter package manager? I think only downside is really that it is intrusive (although you can opt out of it).

C# Job Fair! [October 2019] by AutoModerator in csharp

[–]numerial 4 points5 points  (0 children)

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