Status: New
Owner: ----
Labels: Type-Defect Priority-Medium WrongResult Solvers Polynomial
New issue 3837 by katja.so...@student.tuwien.ac.at: RootOf.free_symbols
gives wrong result
http://code.google.com/p/sympy/issues/detail?id=3837
In [1]: eq = expand((x**5 + 3*x + 1)*(x**3 + 4*x + 1))
In [2]: ex = solve(eq, x)[0]
In [3]: ex.free_symbols
Out[3]: set([x])
But the expected result is set([]).
Constructing ex directly works fine:
In [4]: ex = RootOf(x**3 +x*4 + 1, 0)
In [5]: ex.free_symbols
Out[5]: set([])
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