Updates:
Status: Valid
Labels: WrongResult Assumptions
Comment #1 on issue 3184 by asmeu...@gmail.com: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
I guess it should be nan? As it is, the assumptions result should probably
be considered wrong.
Comment #2 on issue 3184 by pr...@goodok.ru: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
Is it time to have a special label Indeterminate which can signed to
those cases?
http://en.wikipedia.org/wiki/Indeterminate_form
Updates:
Status: Started
Comment #4 on issue 3154 by ness...@gmail.com: Integration of
(sqrt(1-x)+sqrt(1+x))**2/x says Gammas partially over the strip.
http://code.google.com/p/sympy/issues/detail?id=3154
You are right. This problem is handled for definite integration but I
forgot
Comment #3 on issue 3188 by pr...@goodok.ru: Unsupported operand Tuple in
matrices.
http://code.google.com/p/sympy/issues/detail?id=3188
Fixed at
https://github.com/sympy/sympy/pull/1169
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Comment #10 on issue 2418 by pr...@goodok.ru: Interval.evalf() returns a
mpmath interval
http://code.google.com/p/sympy/issues/detail?id=2418
https://github.com/sympy/sympy/pull/1159
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Comment #5 on issue 3154 by ness...@gmail.com: Integration of
(sqrt(1-x)+sqrt(1+x))**2/x says Gammas partially over the strip.
http://code.google.com/p/sympy/issues/detail?id=3154
PR pushed. I'll leave this open since maybe we should be able to do the
integral.
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Labels: Type-Defect Priority-Medium
New issue 3190 by sachin.i...@gmail.com: Dict sorting
http://code.google.com/p/sympy/issues/detail?id=3190
a=[Dict({1:'one', 2:'two'}),Dict({4:'four',0:'zero'})]
sorted(a)
[{1: one, 2: two}, {0: zero, 4: four}]
a=[{1:'one',
Comment #1 on issue 3190 by sachin.i...@gmail.com: Dict sorting
http://code.google.com/p/sympy/issues/detail?id=3190
https://github.com/sympy/sympy/pull/1171
needs review as dictionary comparison is not allowed in python3
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Comment #3 on issue 3184 by asmeu...@gmail.com: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
I think nan is our version of that.
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Comment #4 on issue 3184 by asmeu...@gmail.com: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
By the way, there's no precedent in Python itself for this one:
In [156]: 0**1j
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Updates:
Status: Started
Owner: asmeu...@gmail.com
Labels: NeedsReview
Comment #6 on issue 3184 by asmeu...@gmail.com: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
This was trivial to fix. See https://github.com/sympy/sympy/pull/1172.
Comment #7 on issue 3184 by pr...@goodok.ru: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
I think nan is our version of that.
If so, then it is is strongly recommended to have a docstring in S.NaN
class, which is empty now.
Have you time to add this 1172?
Status: Accepted
Owner:
Labels: Type-Defect Priority-Medium Solvers
New issue 3191 by asmeu...@gmail.com: 'Intersection' object has no
attribute 'as_relational' with inequality solver
http://code.google.com/p/sympy/issues/detail?id=3191
In [230]: a = (-2*alpha + 7)
In [231]: b =
Comment #9 on issue 3184 by pr...@goodok.ru: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
Thank you.
The docstring fully reflects the current state.
I an running the tests now to finish review.
And,
Only one thing which I can't understand since now, why we
Comment #1 on issue 3191 by asmeu...@gmail.com: 'Intersection' object has
no attribute 'as_relational' with inequality solver
http://code.google.com/p/sympy/issues/detail?id=3191
I determined the intersection in question is Intersection((-oo,
RootOf(alpha**3 - 13*alpha**2 + 37*alpha - 35,
Status: New
Owner:
Labels: Type-Enhancement Priority-Medium Assumptions Documentation
New issue 3192 by pr...@goodok.ru: Enable docstring for Q.?
http://code.google.com/p/sympy/issues/detail?id=3192
Now
Q.imaginary?
Q.real?
Q.prime
and so on
gives the docstring from
Updates:
Status: Valid
Comment #1 on issue 3192 by asmeu...@gmail.com: Enable docstring for Q.?
http://code.google.com/p/sympy/issues/detail?id=3192
Related to issue 2196.
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Updates:
Blockedon: 3192
Comment #8 on issue 2196 by asmeu...@gmail.com: Document assumptions
http://code.google.com/p/sympy/issues/detail?id=2196
(No comment was entered for this change.)
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Issue 3192: Enable docstring for Q.?
http://code.google.com/p/sympy/issues/detail?id=3192
This issue is now blocking issue 2196.
See http://code.google.com/p/sympy/issues/detail?id=2196
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Updates:
Status: Fixed
Labels: -NeedsReview PassedReview
Comment #10 on issue 3184 by pr...@goodok.ru: 0**I giving wrong answer
http://code.google.com/p/sympy/issues/detail?id=3184
(No comment was entered for this change.)
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Updates:
Labels: -NeedsReview PassedReview
Comment #3 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
For floats this issue solved,
But we can try to apply this method and
Updates:
Status: Fixed
Comment #4 on issue 3188 by pr...@goodok.ru: Unsupported operand Tuple in
matrices.
http://code.google.com/p/sympy/issues/detail?id=3188
(No comment was entered for this change.)
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Comment #6 on issue 2327 by pr...@goodok.ru: sqrt(I) should return
sqrt(2)/2 + sqrt(2)/2*I by default
http://code.google.com/p/sympy/issues/detail?id=2327
This operation is related with simplification and complex expansion.
The original expression save information about multiplicity of
Comment #4 on issue 3189 by smi...@gmail.com: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
Hmm...replying via email didn't seem to work. I wrote:
Since you can send your own custom simplification you can now do
Comment #5 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
If the matrix is non-symbolic then perhaps this should be automatic.
automatic, only if symbolical trying fails with
Comment #6 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
It works only if the matrix is non-symbolic.
If matrix is symbolic then it is very interesting result:
a = Symbol(a)
In
Comment #7 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
But if a is real, then:
In [39]: a = Symbol('a', real=True)
In [40]: vals = roots(x**2 - (1 + a)*x + a, x)
In [41]: v1 =
Comment #8 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
Regarding comment #4 I have received it by email, but didn't found here
published.
Chris, do you think that comment #6
Comment #9 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
comment #6 is already exists in issue tracker.
http://code.google.com/p/sympy/issues/detail?id=2295#c2
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Comment #10 on issue 3189 by pr...@goodok.ru: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
On 26.03.2012 08:56, Chris Smith wrote:
count_ops = 1972 ! Try make a real:
vals.keys()[0].expand(complex=True)
Updates:
Labels: -PassedReview -smichr
Blockedon: -3188
Comment #11 on issue 3189 by smi...@gmail.com: Calculate eigenvectors
numericly if it impossible calculate symbolical
http://code.google.com/p/sympy/issues/detail?id=3189
Perhaps this is a good time to recap:
1) we
Issue 3188: Unsupported operand Tuple in matrices.
http://code.google.com/p/sympy/issues/detail?id=3188
This issue is no longer blocking issue 3189.
See http://code.google.com/p/sympy/issues/detail?id=3189
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Status: Accepted
Owner:
Labels: Type-Defect Priority-Medium EasyToFix
New issue 3193 by smi...@gmail.com: Matrix(n, 0) and Matrix(0, n) should
not look for data
http://code.google.com/p/sympy/issues/detail?id=3193
Presently,
Matrix(1,0)
Traceback (most recent call last):
Updates:
Labels: -CodeInCategory-Code -CodeInDifficulty-Easy
-CodeInImportedIntoMelange NeedsReview smichr
Comment #6 on issue 2865 by smi...@gmail.com: str(Matrix(...)) should
give Matrix(...)
http://code.google.com/p/sympy/issues/detail?id=2865
The work is currently at
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