Status: Accepted Owner: asmeurer Labels: Type-Defect Priority-Medium Polynomial
New issue 1563 by asmeurer: re(RootOf) fails because Poly.has() fails http://code.google.com/p/sympy/issues/detail?id=1563 >>> a = RootsOf(x**5 - 11*x + 2, x).roots().next() >>> re(a) Traceback (most recent call last): File "<console>", line 1, in <module> File "./sympy/core/multidimensional.py", line 127, in wrapper return f(*args, **kwargs) File "./sympy/core/cache.py", line 85, in wrapper func_cache_it_cache[k] = r = func(*args, **kw_args) File "./sympy/core/function.py", line 139, in __new__ evaluated = cls.eval(*args) File "./sympy/functions/elementary/complexes.py", line 70, in eval elif not term.has(S.ImaginaryUnit) and term.is_real: File "./sympy/core/basic.py", line 1240, in has if e.has(p): File "./sympy/core/basic.py", line 1240, in has if e.has(p): AttributeError: 'tuple' object has no attribute 'has' >>> Poly(x**5 - 11*x + 2, x).has(I) Traceback (most recent call last): File "<console>", line 1, in <module> File "./sympy/core/basic.py", line 1240, in has if e.has(p): AttributeError: 'tuple' object has no attribute 'has' re (as well as im) checks if the argument has I, which runs Poly(x**5 - 11*x + 2, x).has(I), which fails because Poly.args contains tuples instead of Basic objects: >>> Poly(x**5 - 11*x + 2, x).args ((1, -11, 2), ((5,), (1,), (0,)), (x,), grlex) -- 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 [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-issues?hl=en -~----------~----~----~----~------~----~------~--~---
