Comment #26 on issue 1694 by nicolas.pourcelot: solve has many issues with
fractions
http://code.google.com/p/sympy/issues/detail?id=1694
# Comment 17: "I don't know if you tried to make the GS_TRANSCENDENTAL
change that is
noted in
solve (about checking only num or not), but maybe the same thing that you
did with
the P, Q section could be done there, too, and solutions tested."
Maybe we could even throw away denominators before guessing strategy, and
test
solutions later.
Consider this :
>>> solve(x/sqrt(x**2+1),x)
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/home/nicolas/Programmation/wxgeometrie/sympy/solvers/solvers.py",
line 299,
in solve
raise NotImplementedError("No algorithms are implemented to solve
equation %s" % f)
NotImplementedError: No algorithms are implemented to solve equation x/(1 +
x**2)**(1/2)
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