Just a followup: Apparently sympy (0.7.1) is unable to find an expansion of the real part of the root that interests me: it yields a RuntimeError:
>>> sp.expand(sol, complex=True) => RuntimeError: maximum recursion depth exceeded while calling a Python object Apparently wolframlapha is able to find a something interesting in terms of phase: http://www.wolframalpha.com/input/?i=Re[-%28%281%2Bi+sqrt%283%29%29+d%29%2F%284+%28d^3-48+d^2+log%28n%29%2B4+sqrt%286%29+sqrt%2824+d^4+log^2%28n%29-d^5+log%28n%29%29%29^%281%2F3%29%29-%28%281-i+sqrt%283%29%29+%28d^3-48+d^2+log%28n%29%2B4+sqrt%286%29+sqrt%2824+d^4+log^2%28n%29-d^5+log%28n%29%29%29^%281%2F3%29%29%2F%284+d%29%2B1%2F2] I wonder whether the fact that sympy is crashing with a recursion depth exceeded is a bug or this a consequence of a missing algorithm only found in mathematica. -- You received this message because you are subscribed to the Google Groups "sympy" group. To view this discussion on the web visit https://groups.google.com/d/msg/sympy/-/te5rNQQkWHMJ. 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.
