Updates:
Summary: ode_order failure with Derivative(x*f(x),x)
Status: Accepted
Labels: Solvers WrongResult EasyToFix
Comment #1 on issue 2736 by asmeu...@gmail.com: ode_order failure with
Derivative(x*f(x),x)
http://code.google.com/p/sympy/issues/detail?id=2736
The dso
Updates:
Summary: primepi doesn't work with symbolic arguments
Comment #1 on issue 2735 by asmeu...@gmail.com: primepi doesn't work with
symbolic arguments
http://code.google.com/p/sympy/issues/detail?id=2735
This if course has nothing to do with the limit function, but is just
beca
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 2736 by and...@hotmail.com: Dsolve failure with
Derivative(x*f(x),x)
http://code.google.com/p/sympy/issues/detail?id=2736
Hi
I've searched and not found any existing comments on the following
behaviour of dsolve and ode_
Status: Accepted
Owner: hector1...@gmail.com
Labels: Type-Defect Priority-Medium
New issue 2735 by hector1...@gmail.com: Limit failure
http://code.google.com/p/sympy/issues/detail?id=2735
While trying to demonstrate the prime number theorem, I came across the
following bug-
In [57]: limit(pr
Comment #2 on issue 2734 by smi...@gmail.com: ask(~Q.negative(log(p)**2),
Q.positive(p)) is None
http://code.google.com/p/sympy/issues/detail?id=2734
argh...I keep stumbling over this. Thanks. So we can leave this open for
the new assumptions. I see you already changed the name. Thanks.
-
Updates:
Summary: ask(~Q.negative(log(p)**2), Q.positive(p)) is None
Labels: Assumptions
Comment #1 on issue 2734 by asmeu...@gmail.com: ask(~Q.negative(log(p)**2),
Q.positive(p)) is None
http://code.google.com/p/sympy/issues/detail?id=2734
The reason is that it could also be
Updates:
Status: Fixed
Comment #2 on issue 2731 by smi...@gmail.com: zeros(3,0)*zeros(0,3) should
give zeros(3,3)
http://code.google.com/p/sympy/issues/detail?id=2731
(No comment was entered for this change.)
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Updates:
Status: Fixed
Comment #2 on issue 2730 by smi...@gmail.com: Matrix().det() should return 1
http://code.google.com/p/sympy/issues/detail?id=2730
(No comment was entered for this change.)
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Updates:
Status: Started
Owner: matt...@gmail.com
Comment #8 on issue 1170 by matt...@gmail.com: ordering of classes
http://code.google.com/p/sympy/issues/detail?id=1170
I thought this was removed. I will prepare a patch.
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Comment #7 on issue 1170 by asmeurer: ordering of classes
http://code.google.com/p/sympy/issues/detail?id=1170
Basic still has __cmp__ using some ordering_of_classes list in core.py. To
me, this should be removed entirely.
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Updates:
Labels: Solvers
Comment #1 on issue 1640 by smi...@gmail.com: tsolve problem
http://code.google.com/p/sympy/issues/detail?id=1640
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To pos
Status: Accepted
Owner: smi...@gmail.com
Labels: Type-Defect Priority-Medium
New issue 2734 by smi...@gmail.com: (log(positive)**2).is_positive is None
http://code.google.com/p/sympy/issues/detail?id=2734
var('p',positive=True)
p
log(p).is_positive # could be +/-
(log(p)**2).is_positive # I e
Updates:
Status: Fixed
Labels: -NeedsReview PassedReview
Comment #3 on issue 2717 by matt...@gmail.com: apart() should automatically
include algebraic numbers in an expression as an extension
http://code.google.com/p/sympy/issues/detail?id=2717
The pull request was merged.
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Updates:
Status: Fixed
Comment #6 on issue 1170 by matt...@gmail.com: ordering of classes
http://code.google.com/p/sympy/issues/detail?id=1170
This issue is isn't valid anymore. We have completely different subsystem
for sorting expressions now. I think this issue can be considered as
Updates:
Status: Fixed
Labels: -NeedsReview PassedReview
Comment #2 on issue 2665 by matt...@gmail.com: count doesn't count
http://code.google.com/p/sympy/issues/detail?id=2665
This was merged.
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Comment #15 on issue 1172 by smi...@gmail.com: example: curve sketching
http://code.google.com/p/sympy/issues/detail?id=1172
The current solvers fails with multiple generators for several of these
(see attached) and hangs unless check=False for the maxima and inflections
of f20. I think fact
Comment #1 on issue 2733 by asmeurer: Add algorithms to determine where
summations converge
http://code.google.com/p/sympy/issues/detail?id=2733
By the way, let's just implement it so that it works seamlessly with
summation(). In other words, don't make it a separate function like
Mathem
Status: Accepted
Owner: asmeurer
Labels: Type-Enhancement Priority-Medium Concrete
New issue 2733 by asmeurer: Add algorithms to determine where summations
converge
http://code.google.com/p/sympy/issues/detail?id=2733
Mathematica has a function SumConvergence
(http://reference.wolfram.com/m
Comment #16 on issue 2015 by smi...@gmail.com: Hangs attempting to solve a
system of linear equations
http://code.google.com/p/sympy/issues/detail?id=2015
both the original system and just the numereators of the same appear to
hang in the new solver.
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Comment #1 on issue 2703 by matt...@gmail.com: summation(z**n, (n, 1, oo))
gives a strange result
http://code.google.com/p/sympy/issues/detail?id=2703
A little update:
In [1]: from sympy.concrete.summations import eval_sum_hyper
In [2]: z = Symbol('z')
In [3]: t = Symbol('t', real=True)
I
Comment #5 on issue 2656 by asmeurer: Solve exp(x*log(x) - 1, x)
http://code.google.com/p/sympy/issues/detail?id=2656
Maple gives a solution in terms of some RootOf's of non-polynomials:
solve(2.0*sqrt(2)*x**2*exp(-0.03125*(log(x) - 1.5)**2)/sqrt(pi) -
0.0625*sqrt(2)*erf(-log(x) + 1.5) - 0.5,
Updates:
Status: Fixed
Comment #17 on issue 1365 by smi...@gmail.com: improve solve
http://code.google.com/p/sympy/issues/detail?id=1365
The OP expression now returns [1]
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Comment #8 on issue 1364 by smi...@gmail.com: simple equations involving
log()
http://code.google.com/p/sympy/issues/detail?id=1364
the last one in c5 still fails in the new solver
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Updates:
Status: Fixed
Comment #9 on issue 1368 by smi...@gmail.com: solve((a**2 + 1) * (sin(a*x)
+ cos(a*x)), x) fails
http://code.google.com/p/sympy/issues/detail?id=1368
(No comment was entered for this change.)
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Updates:
Status: Fixed
Comment #11 on issue 1572 by smi...@gmail.com: solve() should be able to
solve expressions where variable only appears once
http://code.google.com/p/sympy/issues/detail?id=1572
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Comment #6 on issue 1968 by smi...@gmail.com: solve should not return
infinities nor nan
http://code.google.com/p/sympy/issues/detail?id=1968
Both of the OP expressions give [] with the new solver. Should this be
closed and a new issue opened for whether there should be a solver option
to
Comment #14 on issue 2033 by smi...@gmail.com: solve should be able to
handle rational function systems
http://code.google.com/p/sympy/issues/detail?id=2033
Only the first expression in C1 now fails with the new solver in master.
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Updates:
Cc: matt...@gmail.com
Comment #6 on issue 2236 by smi...@gmail.com: solve fails for polysys with
multiple solutions
http://code.google.com/p/sympy/issues/detail?id=2236
The original system, rational system (nsimplify(eq, rational=True)), and
the primitive form of the equati
Updates:
Summary: _eval_as_leading_term should be refactored
Labels: -Priority-Low Priority-Medium Series
Comment #5 on issue 464 by asmeurer: _eval_as_leading_term should be
refactored
http://code.google.com/p/sympy/issues/detail?id=464
_eval_as_leading_term is actually broke
Updates:
Status: Fixed
Labels: IPython
Comment #12 on issue 1369 by matt...@gmail.com: sympy doesn't work with
ipython+autocall 2
http://code.google.com/p/sympy/issues/detail?id=1369
Basic doesn't implement __call__ anymore, so:
In [1]: %autocall
Automatic calling is: OFF
In
Status: Accepted
Owner:
Labels: Type-Defect Priority-Medium
New issue 2732 by ondrej.c...@gmail.com: pyplot error in doctests
http://code.google.com/p/sympy/issues/detail?id=2732
examples/advanced/dense_coding_example.py[?] Failed to import
[FAIL]
examples/advanced/fem.py[1] .
Updates:
Labels: Matrices
Comment #1 on issue 2731 by asmeurer: zeros(3,0)*zeros(0,3) should give
zeros(3,3)
http://code.google.com/p/sympy/issues/detail?id=2731
(No comment was entered for this change.)
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"s
Updates:
Labels: Matrices
Comment #1 on issue 2730 by asmeurer: Matrix().det() should return 1
http://code.google.com/p/sympy/issues/detail?id=2730
(No comment was entered for this change.)
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