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[Octave-patch-tracker] [patch #9974] [octave forge](mapping) gc2sc scxsc

From: Philip Nienhuis
Subject: [Octave-patch-tracker] [patch #9974] [octave forge](mapping) gc2sc scxsc gcxsc
Date: Wed, 23 Sep 2020 09:50:43 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #3, patch #9974 (project octave):

Maybe we could return an extra output arg, similar to gcxgc.m, indicating
conditions of the intersection points, a la:
* 0: intersecting circles with two distinct intersection points
* 1: coinciding circles (NaNs returned)
* 2: tangent circles, just one intersection point returned as duplicates
* -1 or 3: small circles too far apart, no intersections, NaNs returned.

What do you think?
If it's too difficult I could give it a try once you've solved the other
issues in scxsc.m mentioned in comment #2.


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