4 Nov
2015
4 Nov
'15
4:44 p.m.
On 04/11/2015 23:37, Dan Asimov wrote:
Though I would add that only R^3 is necessary to find the maximum common angular separation of 4 vectors.
Taking every other vertex of the cube [-1,1]^3 gets an example.
I came very close to just writing "Obviously it's -1/3 because the right picture is a regular tetrahedron" but thought that might be not quite rigorous enough :-). (Not quite rigorous enough to be sure I wasn't completely wrong, as well as not quite rigorous enough to satisfy Dan.) -- g