Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1436 by smichr: standard form for powers of powers
http://code.google.com/p/sympy/issues/detail?id=1436
exp(x)**exp(x) has a standardized form of exp(x*exp(x)) but (2**x)**(2**x)
doesn't simplify to 2**(x*2**x). Should this
Comment #12 on issue 1434 by ondrej.certik: substitution doesn't work for
sqrt()
http://code.google.com/p/sympy/issues/detail?id=1434
Any progress on this? We need to fix this soon. I will now be offline for
couple days
and busy, but if noone fixes this, I will have to look into it.
--
You
Comment #13 on issue 1434 by hazelnusse: substitution doesn't work for
sqrt()
http://code.google.com/p/sympy/issues/detail?id=1434
I haven't worked on it since yesterday. Fabian pointed out a few
situations where
your fix doesn't work, and I think he is working on it. Hopefully it will
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1437 by flor...@mickler.org: geometry convex_hull bug
http://code.google.com/p/sympy/issues/detail?id=1437
working with convex_hull I found some issues.
attached patch shows some new tests which fail with the current
Comment #14 on issue 1434 by fab...@fseoane.net: substitution doesn't work
for sqrt()
http://code.google.com/p/sympy/issues/detail?id=1434
I have it fixed in my local repo. It's just that I want to review it
carefully before
submitting a final patch. Expect a patch in (maximum) a couple of
Has anybody had a chance to review this? If there is anything that
should be done differently, I'm happy to change it up, just let me
know.
Thanks,
~Luke
On May 21, 6:58 pm, Luke hazelnu...@gmail.com wrote:
Attached is the code that allows you to use solve with equations that
have Symbol,
Hi,
sorry for the late review. I am on airport now going to Los Alamos, so
I may have sporadic net connection in the coming days.
+SYMBOL_SWAPPED = False
I would use symbol_swapped.
Could you also please add a comment into the code next to
symbols_swapped about its purpose? E.g. that it
Thanks for the patches, thanks for making the appropriate changes. I am
quite busy right now with other things, so I'll reply in a couple of days.
Looks good overall, but I'd like to investigate a bit because I've got
the feeling we can somehow avoid using saxutils.unescape
Thomas Sidoti
Attached is the patch that Fixes issue 626 and allows for solve() to
handle Function and Derivative instances, implements tests for both
cases, and has extensive commenting.
All tests pass on my machine.
Please review and let me know if I can make it better.
Thanks,
~Luke
That file had the wrong encoding on it. This one should have the
correct encoding.
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Those files had the wrong character encoding. These files should have the correct encoding. Aaron Meurer
0001-Added-an-XFAIL-test.patch
Description: Binary data
0001-Added-Equality-support-in-logcombine.patch
Description: Binary data
0001-Added-function-logcombine.patch
Description: Binary
Here is the link for the Maxima trigsimp() code. It was written in
1981, according to the comments!!!
http://maxima.cvs.sourceforge.net/viewvc/maxima/maxima/share/trigonometry/trgsmp.mac?revision=1.4view=markup
I emailed the authors of the Fu et al. paper to see if they would be
willing to
I noticed the following behavior:
In [9]: sin(x)
Out[9]: sin(x)
In [10]: sin(-x)
Out[10]: -sin(x)
In [11]: cos(x)
Out[11]: cos(x)
In [12]: cos(-x)
Out[12]: cos(x)
In [13]: tan(-x)
Out[13]: -tan(x)
In [14]: cot(-x)
Out[14]: -cot(x)
In [15]: sin(pi-x)
Out[15]: sin(x)
In [18]: sin(2*pi + x)
Out[18]:
Hi,
On Mon, May 25, 2009 at 11:51:55AM -0700, Luke wrote:
I noticed the following behavior:
In [9]: sin(x)
Out[9]: sin(x)
In [10]: sin(-x)
Out[10]: -sin(x)
In [11]: cos(x)
Out[11]: cos(x)
In [12]: cos(-x)
Out[12]: cos(x)
In [13]: tan(-x)
Out[13]: -tan(x)
In [14]: cot(-x)
Out[14]:
I'm curious about this:
In [29]: e = S(2)
In [30]: e.is_number
Out[30]: True
In [31]: e.is_Number
Out[31]: True
In [32]: e.is_NumberSymbol
Out[32]: False
In [33]: pi.is_number
Out[33]: True
In [34]: pi.is_Number
Out[34]: False
In [35]: pi.is_NumberSymbol
Out[35]: True
In [36]: e_over_pi =
Ok, that makes more sense now. Thanks for the clarification.
~Luke
On May 25, 1:05 pm, Abderrahim Kitouni a.kito...@gmail.com wrote:
On Mon, 25 May 2009 12:48:09 -0700 (PDT)Luke hazelnu...@gmail.com wrote:
1) Why are there both 'is_Number' and a 'is_number' methods, and why
do they
On Fri, May 22, 2009 at 09:04:17AM -0700, Ondrej Certik wrote:
This is how it used to work originally, but when we implemented the
numpy support, the numpy arrays got confused by it, so we implemented
.args. I was playing with Sage pynac and there it seems to work with
the numpy arrays, so
Luke wrote:
Ok, that makes more sense now. Thanks for the clarification.
~Luke
On May 25, 1:05 pm, Abderrahim Kitouni a.kito...@gmail.com wrote:
On Mon, 25 May 2009 12:48:09 -0700 (PDT)Luke hazelnu...@gmail.com wrote:
1) Why are there both 'is_Number' and a 'is_number' methods, and why
On May 25, 2009, at 11:56 AM, Luke wrote:
Here is the link for the Maxima trigsimp() code. It was written in
1981, according to the comments!!!
http://maxima.cvs.sourceforge.net/viewvc/maxima/maxima/share/trigonometry/trgsmp.mac?revision=1.4view=markup
I emailed the authors of the Fu et
Aaron,
Thanks for the clarification. I think I get the idea, but I'm
having trouble matching expressions of the following form:
a = Wild('a')
b = Wild('b')
x = Symbol('x')
e1 = pi + x
e2 = pi - x
e3 = -pi + x
e4 = -pi - x
I would think that for e{1,2,3,4} that I could get the following
Luke wrote:
Aaron,
Thanks for the clarification. I think I get the idea, but I'm
having trouble matching expressions of the following form:
a = Wild('a')
b = Wild('b')
x = Symbol('x')
e1 = pi + x
e2 = pi - x
e3 = -pi + x
e4 = -pi - x
I would think that for e{1,2,3,4} that I could
You need to use the exclude option I was telling you about. Do,
a = Wild('a', exclude=[pi])
and
b = Wild('a', exclude=[pi]).
and you get
e1.match(a*pi + b)
{a_: 1, b_: x}
b = Wild('b', exclude=[pi])
e2.match(a*pi + b)
{b_: -x, a_: 1}
e3.match(a*pi + b)
{b_: x, a_: -1}
e4.match(a*pi
On Tue, May 26, 2009 at 6:30 AM, Ondrej Certik ond...@certik.cz wrote:
Fredrik was recently at Sage Days, how are you going to use Cython in
mpmath? Will you make it both pure Python and optionally Cython (maybe in pure
python mode), or will you stop being pure Python and just use Cython?
My
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