Status: Accepted Owner: ronan.l...@gmail.com Labels: Type-Defect Priority-Medium WrongResult
New issue 1756 by ronan.l...@gmail.com: Division by order terms is invalid http://code.google.com/p/sympy/issues/detail?id=1756 Sympy produces the following (wrong) results: In [11]: 1/O(1) Out[11]: O(1) In [14]: 1/O(x) Out[14]: O(1/x) In [15]: 1/O(f(x)) Out[15]: O(1/x) Mathematically, if f(x) = O(g(x)) (around x=x0) then 1/g(x) = O(1/f(x)), but sympy basically assumes that 1/f(x) = O(1/g(x)), which is completely wrong (e.g. take f(x) = x and g(x) = 1). -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-iss...@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
