I think I have fixed this issue. I put a solution on branch minus_sign_1495 on my github repo git://github.com/ryanGT/sympy.git
Comments welcome, Ryan On Sat, Jun 27, 2009 at 1:18 PM, Ondrej Certik <[email protected]> wrote: > > On Sat, Jun 27, 2009 at 12:04 PM, Aaron S. Meurer<[email protected]> > wrote: > > > > I get False on Mac OS X 10.5 with Python 2.6.2. > > > > Changing could_extract_minus_sign to make it smarter would be fine, > > but I think it does not fix the main issue here. Namely, the same > > thing in sympy should hash to the same value on any computer. > > That's impossible to do, unless we write our own hash, which will be > too slow. We may write a hash in Cython, but then it will not work in: > > pure python. > > However, hash is an internal thing, users should not see it nor touch > it. So all we have to do is just to fix things in sympy, so that they > are hash independent. > > Ondrej > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sympy?hl=en -~----------~----~----~----~------~----~------~--~---
