P.S. The term "spherical octant" has a number of citations from peer-reviewed journals, 66 on Google Scholar, and 484 on vanilla Google, so it's probably "officially" correct. On 2012-07-31, at 6:33 PM, Dan Asimov wrote:
Completely unambiguously, in standard terminology, it's a "right spherical equilateral triangle".
I like hemidemisemisphere (in that order), by analogy with hemidemisemiquaver.
Spherical octant ought to work, too.
--Dan
On 2012-07-31, at 12:09 PM, James Buddenhagen wrote:
A friend who is a sculptor asked me if there is a name for the shape of the 8 pieces a solid sphere would fall into if you cut it with 3 mutually perpendicular planes through the center. I couldn't think of any but thought I would ask here. And more generally, is there a name for a 'spherical wedge' bounded by a spherical triangle and the planar faces from the center containing the triangle's edges?
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