On 7 March 2016 at 18:22, Thorsten Behrens <thb@documentfoundation.org> wrote:
You're getting different rounding even depending on the flags your OS
(or driver that happens to be in your process) sets. Seriously - I'm
too lazy to dig out references, but consider floating point math to be
inherently non-similar from one box to the next, *unless* you're
extremely careful across the entire calculation chain (which is the
case in Calc).
While this is an issue for actual math on potentially very large or
very small numbers (which is, I assume, why calc is careful with it),
and an issue for games with large 3D worlds, it can hardly be an issue
for the magnitudes of numbers we deal with in the font rendering
paths.
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