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[Bug 12705] setTransform spec silent on what to do with singular matrices

From: <bugzilla@jessica.w3.org>
Date: Thu, 19 May 2011 17:56:06 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1QN7SA-0004Q9-Rb@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=12705

--- Comment #3 from Aryeh Gregor <Simetrical+w3cbug@gmail.com> 2011-05-19 17:56:06 UTC ---
Yeah, it probably does make the most sense to ignore it or throw an exception
or something.  Problem: how do you define "singular"?  The arguments are
doubles.  Do you require that the determinant of {{a, c}, {b, d}} be within
epsilon of 0 for some specific epsilon?  What happens if you call transform()
when the existing matrix and the matrix you passed to transform() both have
determinants greater than epsilon in absolute value, but their product has a
determinant smaller than epsilon?

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