Comment #6 on issue 3059 by asmeu...@gmail.com: (x - oo).has(oo) is False; (x - oo).subs(oo, 1) fails
http://code.google.com/p/sympy/issues/detail?id=3059
I suppose the real question here is, is there a good reason that -oo is not represented as Mul(-1, S.Infinity)?
Maybe you could try changing it and seeing if anything breaks. -- You received this message because you are subscribed to the Google Groups "sympy-patches" group. To post to this group, send email to sympy-patches@googlegroups.com. To unsubscribe from this group, send email to sympy-patches+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-patches?hl=en.
