Comment #3 on issue 3014 by ness...@gmail.com: mathml printing doctest
failure
http://code.google.com/p/sympy/issues/detail?id=3014
% uname -a
Linux laptop-tom 2.6.32-5-amd64 #1 SMP Mon Oct 3 03:59:20 UTC 2011 x86_64
GNU/Linux
% python --version
Python 2.7.2+
I hope this is helpful.
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Comment #1 on issue 3023 by ness...@gmail.com: integrate(exp(-I*x**2), (x,
-oo, oo)) is wrong!
http://code.google.com/p/sympy/issues/detail?id=3023
pull request: https://github.com/sympy/sympy/pull/1017
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Updates:
Status: Fixed
Comment #2 on issue 3023 by asmeu...@gmail.com: integrate(exp(-I*x**2), (x,
-oo, oo)) is wrong!
http://code.google.com/p/sympy/issues/detail?id=3023
It was merged. Thanks!
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Pull request for further discussion is here
https://github.com/sympy/sympy/pull/1015
On Sun, Jan 22, 2012 at 2:27 PM, Aaron Meurer asmeu...@gmail.com wrote:
On Sun, Jan 22, 2012 at 10:03 AM, Matthew mrock...@gmail.com wrote:
I've refactored into
MatrixBase(object):
Having done a little debugging, I now can't produce a simple example like I
could so easily last night. Potentially a false alarm as I now suspect I
may have polluted SymPy's namespace somehow. (The same code in two
different instances of SymPy works and doesn't work.) I'll post when I
have
But what kind of object would you expect to be used for the Matrox?
Aaron Meurer
On Jan 22, 2012, at 11:50 PM, Gustavo gustavo.goret...@gmail.com wrote:
Sorry for the vagueness. This is what I'd like:
import sympy
from sympy.utilities.autowrap import autowrap
x = sympy.symbol.symbols('x')
Are you on Windows? I just merged a branch that should hopefully make
sympy-bot work on Windows. Please do a git pull in the sympy bot
directory and try again.
If it still doesn't work, please let us know specifically what your
problem is so we can fix it.
Aaron Meurer
On Wed, Jan 11, 2012 at
See the top of GAsympy.txt. You need to create a math environment with
all the newcommands, like:
.. math::
\newcommand{\bfrac}[2]{\displaystyle\frac{#1}{#2}}
Note that this is specifically how you do it when using the mathjax
extension. If you are using pngmath, you add it to conf.py, in
On Mon, Jan 23, 2012 at 1:21 AM, Chris Smith smi...@gmail.com wrote:
On Mon, Jan 23, 2012 at 1:55 PM, Kevin Hunter hunt...@gmail.com wrote:
Hullo Sympifiers,
I've created (programmatically) a situation that boils down to something
like:
x, y = symbols( 'x,y' )
And( x y, y oo )
This
Okay, this is my fault, but I'm wondering if there's a way around it while
still using SymPy. Specifically, I want the ability to create an equation
with Python's == syntax. (I.e., I don't want to be forced to use the Eq()
method.)
At one point in my code, I have done this:
*from sympy
Right now it returns a float. I'd like an NumPy array, so maybe I
can create the NumPy array with the correct size and row/column
ordering and pass it as an out parameter to the code generator.
On Jan 23, 12:57 pm, Aaron Meurer asmeu...@gmail.com wrote:
But what kind of object would you expect
Am 23.01.2012 09:14, schrieb Tom Bachmann:
Hm. Actually we knew when pushing that said test seems to never finish.
I once let it run for two hours, and it was consuming 100% of a CPU core
and didn't stop, so I'm pretty sure it's an endless loop.
I did some analysis but didn't retain the
This has been discussed before. Overriding Basic.__eq__ is
unrecommended, because a ton of code uses == with its current meaning,
and, as you've found, changing this will break things.
Here are some workarounds I can see:
- Do some kind of string parsing. In other words, it's pretty
straight
Hmm. From what I remember, it was not hanging in the new algorithm,
but in heurisch(). This means that it probably would indeed finish if
you let it run long enough, but that algorithm can be so inefficient
that there's no telling if it could be hours, days, weeks, ...
If it is indeed hanging in
No it's hanging in heurisch.
(And in fact smichr already merged my fix - i.e. turning the test into
skip.)
On 23.01.2012 20:13, Aaron Meurer wrote:
Hmm. From what I remember, it was not hanging in the new algorithm,
but in heurisch(). This means that it probably would indeed finish if
you
As far as I can tell, I have correctly added a torque term at the P
joint.
The linearization produces the matrices of expected dimension. I
haven't checked that the A matrix is correct, but it looks like the
B matrix is not correct.
Here's a gist that computes B using the linearize() method
Hi all,
functions/special/tests/test_error_functions.py[8] F... [FAIL]
File [...]/sympy/functions/special/tests/test_error_functions.py,
line 38, in test_erf
assert limit(exp(x)*exp(x**2)*(erf(x+1/exp(x))-erf(x)), x, oo) ==
2/sqrt(pi)
AssertionError
Note that the fail will happen
This must be because of the pull request by raulb I pushed. I would be
happy to debug this, but since I cannot reproduce it this is somewhat
hard. It would be very helpful if you could post the output of the
failing test produced with SYMPY_DEBUG=True. The problem with this is
that the output
Two problems here:
First: you've added a torque term which applies to ReferenceFrame B,
tau*A.z. There are 2 potential issues with this. One, if possible,
you should describe the torque in the same ReferenceFrame in which the
angular velocity of the torqued frame is described in. Here,
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