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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 18:04:20 +0000
To: public-html-bugzilla@w3.org
Message-Id: <E1QN7a8-0004wC-Gz@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=12705

--- Comment #4 from Benjamin Peterson <benjamin@python.org> 2011-05-19 18:04:20 UTC ---
Let
a b
c d
be a matrix where a, b, c, d are some floating point data type. We'll say it's
singular iff a*d == c*b. This mostly defeats mistakes like passing the zero
matrix or a simple non-invertible one. I'm not sure why we'd have to worry
about them being close to equal. It should only arise with pathological
matrices.

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