Proposal: Better power for Rational
schlepptop at henning-thielemann.de
Sat Sep 25 12:27:41 EDT 2010
Simon Peyton-Jones schrieb:
> Dear Daniel
> Thank for your proposals to improve Haskell's numerics. We have long needed someone who was willing to devote some time and attention to this area.
> Can I interest you in a number of open tickets?
> #4101: constant folding for (**)
> #3676: realToFrac conversions
> #3744: comparisons against minBound and maxBound are not optimised away
> #3065: quot is sub-optimal
> #2269: Word type to Double or Float conversions
> #2271: floor, ceiling, round :: Double -> Int are awesomely slow
> #1434: slow conversion Double to Int
For the rounding issue I have already written some code for numeric-prelude:
More information about the Libraries