Status: Valid
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Labels: Type-Defect Priority-Medium Series
New issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0, dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
After pr #2330 raises PoleError. We should fix this, preferably in the
gruntz.
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Comment #1 on issue 3997 by asmeu...@gmail.com: limit(x**-pi, x, 0, dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
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Comment #2 on issue 3997 by ondrej.c...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
This needs to be fixed in gruntz either way. Gruntz() must always return
correct values, although sometimes it might be slower.
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Comment #3 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
The gruntz algorithm has own boundaries. For example, it can't handle
x*sin(1/x). Yet, I think, this is not a case.
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Comment #5 on issue 3997 by asmeu...@gmail.com: limit(x**-pi, x, 0, dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
Some suggestions for that one at
https://groups.google.com/forum/m/#!searchin/sympy/Limit$20sin/sympy/h3aVz3y3n7g
(I hope the link works, this is from the mobile
Comment #4 on issue 3997 by ondrej.c...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
Yeah I think for x*sin(1/x), the series expansion will fail --- so it might
be possible to extend gruntz() to handle cases like these.
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Comment #6 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
Some suggestions for that one at
https://groups.google.com/forum/m/#!searchin/sympy/Limit$20sin/sympy/h3aVz3y3n7g
I think, you point to some search on terms
Comment #7 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
so it might be possible to extend gruntz() to handle cases like these.
May be. Yet, for now it's a known limitation of the original Gruntz
algorithm (see c
Comment #8 on issue 3997 by asmeu...@gmail.com: limit(x**-pi, x, 0, dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
Stupid mobile version of Google groups always breaks links. Just remove
the "/m"
https://groups.google.com/forum/#!searchin/sympy/Limit$20sin/sympy/h3aVz3y3n7g.
Comment #9 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
FYI, now gruntz(x**-pi, x, 0, dir='-') returns:
Out[24]: oo*sign((-1)**(-pi))
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Comment #10 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
https://github.com/sympy/sympy/pull/2738
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Status: Fixed
Comment #11 on issue 3997 by asmeu...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
I'm assuming this should be closed. Or is there a better answer?
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Comment #12 on issue 3997 by skirpic...@gmail.com: limit(x**-pi, x, 0,
dir='-')
http://code.google.com/p/sympy/issues/detail?id=3997
No. I think it's ok.
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