On Apr 28, 2014 12:16 AM, "Neil Toronto" <neil.toro...@gmail.com> wrote: > > For anyone wondering what this stuff means: most mixed exact/inexact math in Racket should be up to 5x or so faster now, depending on how conversion-heavy it is and how large the numbers are. On my machine, `real->double-flonum` is 1x or 25x faster on exact rationals (1x if the numerator and denominator both fit in a flonum; we optimized the slow path), and `inexact->exact` is 4x-100x faster (depending on the magnitude of the flonum's exponent). Also, conversions from exact to inexact now always find the closest approximation, so e.g. `sqrt` is a little more accurate when given exact rationals.
Sounds great. > FWIW, the C implementations aren't much faster than the Typed Racket prototypes. I find that totally awesome. Impressive! Can you share the prototype? Also, what ends up slower? What would we have to fix to make them the same speed? Sam
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