From: Michael Orlitzky <michael@orlitzky.com>
Date: Fri, 2 Nov 2018 02:30:04 +0000 (-0400)
Subject: cone/faces.py: add preliminary dual_face() operation.
X-Git-Url: http://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=924b894e3f5f11886809058fd210f124a1f3f22f;hp=924b894e3f5f11886809058fd210f124a1f3f22f;p=sage.d.git

cone/faces.py: add preliminary dual_face() operation.
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