25 Sep
2010
25 Sep
'10
4:27 p.m.
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: http://code.haskell.org/numeric-prelude/src/Algebra/RealRing.hs