31 Jul
2016
31 Jul
'16
4:01 a.m.
(Alternate Subject: Twisted STOP signs--permutations of the vertices of a regular octagon) On 2016-07-30 21:36, James Propp wrote:
I wrote:
If we're looking at symmetrical solutions, we should probably include even
values of n back in the game. For instance, when n=8 is there a solution with fourfold symmetry?
The answer is YES: e.g., 1,4,3,6,5,8,7,2,1.
Jim Propp
Also, with two mirror axes, the Suicide Schuss triple black diamond: Graphics@Polygon[ReIm /@ (I^({7, 0, 1, 6, 3, 4, 5, 2}/2))] where the middle rhombus is the √2 scaling of a side rhombus. --rwg