Comment #13 on issue 2260 by asmeurer: What should 0**0 return?
http://code.google.com/p/sympy/issues/detail?id=2260
See issue 2261 for the (1/x).subs(x, 0) thing.
By the way, the FieldAssumption idea from comment 11 is a good idea. Chalk
it up as another thing we should do with the new assumptions. Except I'm
not sure if it should make S(0).is_complex return False. It should make
1/0 return oo instead of zoo, and also make new symbols real by default.
It should be more like set_global_assumption_field(RR) (of course, that is
still a very rough syntax that could priorly be much better and will depend
on what the actual object structure looks like). Maybe open a new issue
for it.
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