User Portlet User Portlet

Ed Pegg
Discussions
&[Wolfram Notebook][1] I'd be curious if anyone can find more perfect series dissections. [1]: https://www.wolframcloud.com/obj/82f03a84-4159-408d-9ba8-52bdef8cd000
Do you have a picture of the graph you want labeled? In general, no. It's still unsolved if all trees can be gracefully labeled.
Here's the "simpler" form that might work with the rhombic dodecahedron: points = {{0, 0, 0}, {12, 0, 0}, {0, 0, 12}, {0, 12, 0}, {3, 3, -3}, {3, -3, 3}, {-3, 3, 3}, {9, 9, 3}, {9, 3, 9}, {3, 9, 9}, {8, 8, 8}}/6; ConvexHullMesh[points] ...
This looks very nice. A slightly simpler demo might show 1. Trilinear coordinates 2. Barycentric coordinates
Another trick Brillhart = {{0, 2, 2}, {1, 0, 2}, {2, 1, 0}}; bc = Eigenvalues[Brillhart][[1]]; N[Log[(2 + bc)^24 - 24]/Sqrt[163], 34] 3.141592653589793238462643383279503 N[Pi, 34] 3.141592653589793238462643383279503
Well, I took a look at the wild example, then took a wild guess that the following would be perfect: dat = FoldList[PolyhedronFaceReflect, a4, {3, 2, 5, 3, 2, 5, 2, 1, 2, 5, 2, 3, 5, 2, 3, 2, 1}]; Graphics3D[{{Red, Sphere[v[[6]]...
&[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/04583976-5a80-43c2-9cd2-a9df6e976d2d
What polynomial needs to solved to brace the 17-gon? We could argue that the 7-gon doesn't have a direct side to side bracing because that triangle of braces would imply the 7-gon (or 9-gon) is constructible.
Murray, The code in this demo requires version 12.3. However, that version of the CDF isn't yet incorporated into the Demonstrations build system. Once that is ready, I plan to republish with the CDF. I didn't want to make the author wait longer...
There are also a number of [demonstrations with the Tokyo logo][2] by Yasushi Miki and [Izidor Hafner][3]. ![Tokyo Olympic Logo][1] [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=popup_1.png&userId=21530 ...