Updates:
Cc: [email protected]
Comment #13 on issue 2895 by [email protected]: minpoly hangs on this
expresion
http://code.google.com/p/sympy/issues/detail?id=2895
And here's SymPy's "proof":
In [174]: a = S('-1/(800*sqrt(-1/240 + 1/(18000*(-1/17280000 +
sqrt(15)*I/28800000)**(1/3)) + 2*(-1/17280000 +
sqrt(15)*I/28800000)**(1/3)))')
In [175]: b = a**2*8000 - 1
In [173]: minpoly(b.cancel().as_numer_denom()[0])
Out[173]: x
By the way, for some reason calling minpoly again with the exact same input
causes it to hang. How much of the code is randomized?
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