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New issue 1861 by ggventurini: Simplify uses all available memory in some
cases
http://code.google.com/p/sympy/issues/detail?id=1861
Simplify fails eating up all my ram.
I am sorry I couldn't understand what exactly triggers this,
Comment #1 on issue 1861 by asmeurer: Simplify uses all available memory in
some cases
http://code.google.com/p/sympy/issues/detail?id=1861
What modification makes it work fine? And what version of sympy are you
using? It works fine for me:
[0, 1, 1/a1, -1/a1,
Comment #2 on issue 1861 by ggventurini: Simplify uses all available memory
in some cases
http://code.google.com/p/sympy/issues/detail?id=1861
Hi there,
If I remove a3, it works. I am using 0.6.4 packaged by Ubuntu.
[0, 1, 1/a1, -1/a1, 0]
[0, 0, -1/a1, 1/a1 + 1/a2, -1/a2]
[1, 0,
Updates:
Status: Invalid
Comment #3 on issue 1861 by asmeurer: Simplify uses all available memory in
some cases
http://code.google.com/p/sympy/issues/detail?id=1861
Bisecting, it looks like it has been fixed since this commit, which is part
of sympy 0.6.6:
commit
Comment #93 on issue 1598 by fredrik.johansson: New polynomials
manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
Specifically, Rouche's theorem can be used.
f(x) = 1 + (A/eps)*x
g(x) = (B*x^2 + ...)/eps
Then by finding a radius R such that |g(x)| |f(x)| within R
Comment #94 on issue 1598 by fredrik.johansson: New polynomials
manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
Sorry, that should of course be R eps/A.
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Comment #95 on issue 1598 by mattpap: New polynomials manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
Great progress! Keep up the good work.
Thanks! Hopefully there will more developments in near future.
For complex root isolation, (...)
This is an interesting
Updates:
Status: Fixed
Comment #32 on issue 1829 by Vinzent.Steinberg: release 0.6.7
http://code.google.com/p/sympy/issues/detail?id=1829
I just released 0.6.7, if anyone wants to release something before 0.7.0 he
can do 0.6.8.
This time we used a separate stable branch with own
Comment #96 on issue 1598 by Vinzent.Steinberg: New polynomials
manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
I just released 0.6.7 btw. The are apparently some conflicts with current
master. But
all tests, so let's merge it soon. There are however many doctests
Updates:
Status: Fixed
Labels: -NeedsBetterPatch PassedReview
Comment #97 on issue 1598 by asmeurer: New polynomials manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
Congratulations on getting this in! I think RootOf is in issue 51, so I am
going to
Comment #3 on issue 51 by asmeurer: RootOf for polynomial equations
http://code.google.com/p/sympy/issues/detail?id=51
See the discussion at the bottom of issue 1598.
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Comment #15 on issue 199 by asmeurer: Factoring univariate polynomials and
rational functions
http://code.google.com/p/sympy/issues/detail?id=199
The new polys are in, but I am not sure what is or isn't supposed to be
working now with respect to this issue. Is
there an option to factor to
Comment #14 on issue 317 by asmeurer: factor() slow
http://code.google.com/p/sympy/issues/detail?id=317
With new polys:
SYMPY_GROUND_TYPES=sympy:
In [1]: a,b,c,d,x = symbols('abcdx')
In [2]: %timeit factor(a-x)
1000 loops, best of 3: 1.37 ms per loop
In [3]: %timeit factor(a*b-x)
100 loops,
Updates:
Labels: EasyToFix
Comment #16 on issue 326 by asmeurer: sympy.roots_.sturm(...) hangs
http://code.google.com/p/sympy/issues/detail?id=326
So the new polys are in, but it doesn't look like a test was added for this.
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Comment #5 on issue 588 by asmeurer: simplify should be better at detecting
repeated factors
http://code.google.com/p/sympy/issues/detail?id=588
This is fixed in the new polys, but it needs to be tested:
In [1]: e = integrate(x**2 * exp(x) * cos(x), x)
In [2]: e
Out[2]:
x 2 x
Updates:
Status: Fixed
Comment #5 on issue 595 by asmeurer: improve polynomial algorithms:
factorization and non-rational coefficients
http://code.google.com/p/sympy/issues/detail?id=595
New polys with gmpy ground types:
In [1]: %timeit factor(expand((x + 2*x + 1)**20*(x**2 +
Updates:
Labels: EasyToFix
Comment #5 on issue 1095 by asmeurer: Trig functions break cancel
http://code.google.com/p/sympy/issues/detail?id=1095
New polys:
In [8]: cancel((4*x+6*cos(y))/(2*x+3*cos(y)))
Out[8]: 2
In [10]: simplify((4*x+6*cos(y))/(2*x+3*cos(y)))
Out[10]: 2
But once
Comment #3 on issue 1097 by asmeurer: Poly.integrate() crash, but
integrate(Poly) work
http://code.google.com/p/sympy/issues/detail?id=1097
Is there a reason to make Poly.integrate() support definite integrals?
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Comment #4 on issue 1106 by asmeurer: trim fails
http://code.google.com/p/sympy/issues/detail?id=1106
trim() doesn't exist anymore, but simplify() gives this:
In [22]: V1
Out[22]:
⎛ -d ⎛ -d⎞ -d⎞
⎜ ── ⎜ ──⎟ ──⎟
⎜ τ ⎜ τ ⎟ τ ⎟
Comment #4 on issue 1122 by asmeurer: _decompose in Poly slow
http://code.google.com/p/sympy/issues/detail?id=1122
Have these changes been incorporated into the new polys? What is an
example expression that was slow before
here?
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Comment #3 on issue 1243 by asmeurer: bug in trim()
http://code.google.com/p/sympy/issues/detail?id=1243
Of course, it just works in the new polys:
In [30]: simplify(c*t)
Out[30]:
ⅈ⋅x -ⅈ⋅x
ⅈ⋅ℯ ⅈ⋅ℯ
- ── + ───
2 2
In [31]: sin(x)._eval_rewrite_as_exp(x)
Updates:
Status: Fixed
Comment #8 on issue 1349 by asmeurer: 'int' object has no
attribute 'is_Add'
http://code.google.com/p/sympy/issues/detail?id=1349
Poly.add_term() doesn't exist anymore in the new polys, but I'll take
Mateusz's word for it.
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Updates:
Labels: EasyToFix
Comment #5 on issue 1355 by asmeurer:
factor(expand((sin(x)+sin(y))*(cos(x)+cos(y fails
http://code.google.com/p/sympy/issues/detail?id=1355
Of course, it works in the new polys:
In [3]: factor(expand((sin(x)+sin(y))*(cos(x)+cos(y
Out[3]: (cos(x) +
Updates:
Labels: EasyToFix
Comment #4 on issue 1432 by asmeurer: simplify gets hung up on this
expression
http://code.google.com/p/sympy/issues/detail?id=1432
New polys come to the rescue again:
In [4]: a = S(-x1 + F1/(Gc + k) + Gc*x1/(Gc + k) + Gc*xd/(Gc + k) +
k*x1/(Gc + k))
Updates:
Cc: smichr
Comment #3 on issue 1568 by asmeurer: factoring is working too hard
http://code.google.com/p/sympy/issues/detail?id=1568
Did you paste the expression incorrectly? The third derivative of that
expression doesn't have any (a + x)**25
terms.
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Updates:
Summary: Polynomials docs
Comment #4 on issue 1587 by asmeurer: Polynomials docs
http://code.google.com/p/sympy/issues/detail?id=1587
Does the new polys have docs written yet?
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Comment #4 on issue 1647 by asmeurer: leading_monom is incorrect
http://code.google.com/p/sympy/issues/detail?id=1647
What is leading_monom in the new polys (and is this tested)?
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On Wed, Mar 17, 2010 at 6:11 AM, Priit Laes pl...@plaes.org wrote:
Hey,
A while ago (last year sometime) I sent a review request about my
pyflakes branch to the list, but I dont really recall the outcome but
anyway - it wasn't included...
So here's the proposal again:
I have introduced an
On Wed, Mar 17, 2010 at 9:35 AM, Ondrej Certik ond...@certik.cz wrote:
On Wed, Mar 17, 2010 at 6:11 AM, Priit Laes pl...@plaes.org wrote:
Hey,
A while ago (last year sometime) I sent a review request about my
pyflakes branch to the list, but I dont really recall the outcome but
anyway - it
Hey!
Now that auditing support is in master, I went out there and picked some
low-hanging fruit (unused imports) from the long list of issues reported
by audit tool:
70 files changed, 87 insertions(+), 153 deletions(-)
From 545 warnings to 349 ;)
Branch is here:
Hi Fernando,
On Fri, Jan 1, 2010 at 12:47 PM, Fernando Perez
fernando.pe...@berkeley.edu wrote:
Hey Ondrej,
I got that screenshot from David and noticed that isympy says
(ipython-0.10)maqroll[~] isympy
Python 2.6.4 console for SymPy 0.7.0-git
It would be cool if you acknowledged that this
Should we include the IPython version too? Otherwise, it looks fine.
Aaron Meurer
On Mar 17, 2010, at 4:24 PM, Ondrej Certik wrote:
Hi Fernando,
On Fri, Jan 1, 2010 at 12:47 PM, Fernando Perez
fernando.pe...@berkeley.edu wrote:
Hey Ondrej,
I got that screenshot from David and noticed
It does not rebase trivially over master, due to mpmath being updated.
Aaron Meurer
On Mar 17, 2010, at 4:27 PM, Ondrej Certik wrote:
On Wed, Mar 17, 2010 at 2:13 PM, Priit Laes pl...@plaes.org wrote:
Hey!
Now that auditing support is in master, I went out there and picked some
Hi,
On Wed, Mar 17, 2010 at 04:59:50PM -0600, Aaron Meurer wrote:
It does not rebase trivially over master, due to mpmath being updated.
New rebased branch is polys7. We currently testing it.
Aaron Meurer
On Mar 17, 2010, at 4:27 PM, Ondrej Certik wrote:
On Wed, Mar 17, 2010 at 2:13
On Wed, Mar 17, 2010 at 5:21 PM, Aaron Meurer asmeu...@gmail.com wrote:
I was actually referring to Priit's branch, but I guess polys will need to
fixed too. :)
Polys are now rebased and pass all tests, but you need the patches
from my polys7 branch at github. Those are hotfixes, so now we are
Asaf Paris Mandoki wrote:
Hi,
The website is http://code.google.com/p/openket/ although is
outdated. I am attaching the most recent version together with a
couple of examples.
I guess that we can get rid of most of the code by taking advantage of
sympy. I also believe we can improve the API
Having dug deeper, it appears that first order logic isn't even
included in the current version of sympy. Is there some manner of
generic (existential and universal) quantification in the sympy core
that I'm missing?
Thanks. Cheers
On Mar 16, 1:37 pm, Christian Muise
Hi,
we could use this for the tests:
http://copypasteprogrammer.blogspot.com/2010/03/buildbot-and-nose-test-coverage.html
just posting it here, so that I don't forget. If anyone wants to help
to set this up, it'd be awesome. I have the hardware, just don't have
time.
Ondrej
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Hi,
On Wed, Mar 17, 2010 at 08:25:15AM -0700, Christian Muise wrote:
Having dug deeper, it appears that first order logic isn't even
included in the current version of sympy. Is there some manner of
generic (existential and universal) quantification in the sympy core
that I'm missing?
Hi,
Vinzent just released 0.6.7. Changes:
date: 17 March 2010
fix a bug where bin/test and bin/doctest would be installed into /usr/bin
fix an example for recent matplotlib versions
some fixes for Python 2.4 and 2.5
try to expand integrand if integration fails
improved isprime() (pseudoprimes
On Wed, Mar 17, 2010 at 3:09 PM, Ondrej Certik ond...@certik.cz wrote:
Hi,
Vinzent just released 0.6.7. Changes:
New release can be downloaded from:
http://code.google.com/p/sympy/downloads/list
as usual.
Ondrej
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You forgot to tag the release commits (I would do it but my private ssh key is
on my laptop, which is still being repaired).
Aaron Meurer
On Mar 17, 2010, at 4:10 PM, Ondrej Certik wrote:
On Wed, Mar 17, 2010 at 3:09 PM, Ondrej Certik ond...@certik.cz wrote:
Hi,
Vinzent just released
On Wed, Mar 17, 2010 at 5:37 PM, Aaron Meurer asmeu...@gmail.com wrote:
You forgot to tag the release commits (I would do it but my private ssh key
is on my laptop, which is still being repaired).
As my P.S. note above explains, they are tagged. Try to git clone a
new sympy repo and do git
I see, so you tagged the unmerged branch. I will have to remember this when I
try bisecting changes.
Aaron Meurer
On Mar 17, 2010, at 6:50 PM, Ondrej Certik wrote:
On Wed, Mar 17, 2010 at 5:37 PM, Aaron Meurer asmeu...@gmail.com wrote:
You forgot to tag the release commits (I would do it
On Wed, Mar 17, 2010 at 6:02 PM, Aaron Meurer asmeu...@gmail.com wrote:
I see, so you tagged the unmerged branch. I will have to remember this when
I try bisecting changes.
Viznent did the release, so I am not exactly sure what he did and if
it can be fixed somehow.
Ondrej
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Hi,
we just fixed the last bugs in the Mateusz's polys branch and pushed
it in our main git repo. All tests pass for all kinds of
configurations that I tried, but if possible, please test it (I didn't
test on Mac nor Windows).
Just to get some idea, Mateusz did about 150 patches and it
I tested many combinations (not all), and everything passes, except for this
doctest with -Qnew:
File /users/aaronmeurer/documents/sympy/doc/src/tutorial.txt, line 147, in
tutorial.txt
Failed example:
1/2
Expected:
0
Got:
0.5
Is there a reverse to from __future__ import division
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