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$\begingroup$ Oooh. I need to stare at this. $\endgroup$

David E Speyer
– David E Speyer

2026-02-27 14:08:31 +00:00
Commented yesterday
$\begingroup$ Okay, what I have learned from this is (a) if I want Mathematica to plot a polytope, I should give it the list of vertices, edges and faces as a Polygon[], not the list of defining inequalities as in RegionPlot[] (b) I should exploit the fact that Polygon can take a list of lists as an input, not just one list and (c) lots of little tricks about graphics. $\endgroup$

David E Speyer
– David E Speyer

2026-02-27 14:24:27 +00:00
Commented yesterday
$\begingroup$ In general, (a) might be painful -- computing the face structure of a polytope from its defining inequalities can be really hard -- but it isn't in this case. $\endgroup$

David E Speyer
– David E Speyer

2026-02-27 14:25:43 +00:00
Commented yesterday

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