Comment #7 on issue 1305 by fab...@fseoane.net: sympy.roots not working for
slightly more complicated polynomials
http://code.google.com/p/sympy/issues/detail?id=1305
not sure how we should check for exact result, as the output formula is
really
unreadable ...
and check the result by
Comment #5 on issue 1306 by fab...@fseoane.net: Test the rst docs
http://code.google.com/p/sympy/issues/detail?id=1306
i'm having a problem with the following line:
(cos(3*x)).match(f(p*x))
{p_: 3, f_: cos}
line 702 of tutorial.txt.
Plus, WildFunction is very badly documented and
Status: Accepted
Owner:
Labels: Type-Defect Priority-Medium
New issue 1350 by fab...@fseoane.net: Is WildFunction broken?
http://code.google.com/p/sympy/issues/detail?id=1350
The code from the doc's don't run:
p = Wild('p')
g = WildFunction('g', nofargs=2)
Comment #1 on issue 1335 by fab...@fseoane.net: WildFunction() broken
http://code.google.com/p/sympy/issues/detail?id=1335
Issue 1350 has been merged into this issue.
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Status: Duplicate
Mergedinto: 1335
Comment #3 on issue 1350 by fab...@fseoane.net: Is WildFunction broken?
http://code.google.com/p/sympy/issues/detail?id=1350
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Comment #10 on issue 1297 by ondrej.certik: examples don't run
http://code.google.com/p/sympy/issues/detail?id=1297
There used to be a script
import i_am_a_sympy_example
that fixed all the paths correctly. Is there some other way to fix it?
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Comment #6 on issue 935 by fab...@fseoane.net: .match() behaves in a random
manner.
http://code.google.com/p/sympy/issues/detail?id=935
However, the pattern matching implementation should not depend on it.
+1 on that
to achieve consistency maybe we should not only match the expression
Comment #11 on issue 1297 by andy.terrel: examples don't run
http://code.google.com/p/sympy/issues/detail?id=1297
We could put this back in but the problem was you would need it in each
subdirectory
to insure that you were able to reference it in each example.
This breaks the don't repeat
Comment #8 on issue 935 by fab...@fseoane.net: .match() behaves in a random
manner.
http://code.google.com/p/sympy/issues/detail?id=935
This is a topic in which i don't know much, i confess, but there are some
papers who
talk about this:
http://portal.acm.org/citation.cfm?id=1005298
and
Comment #4 on issue 1276 by fab...@fseoane.net: solve(-1 + x**2 +
0.111*(1.00 + 2.00*x)**2,x) fails
http://code.google.com/p/sympy/issues/detail?id=1276
function nsimplify could be used to transform float's into fractions.
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Comment #9 on issue 935 by fab...@fseoane.net: .match() behaves in a random
manner.
http://code.google.com/p/sympy/issues/detail?id=935
just found a direct link to that paper:
http://www.cas.mcmaster.ca/~carette/publications/simplification.pdf
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Comment #1 on issue 1345 by ondrej.certik: trigsimp(sin(x)/cos(x)) fixed
http://code.google.com/p/sympy/issues/detail?id=1345
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Comment #2 on issue 1346 by ondrej.certik: hack from a fraction() removed
http://code.google.com/p/sympy/issues/detail?id=1346
I think I forgot to attach a patch.
Attachments:
0001-Removing-the-hack-from-fraction-as-it-is-not-neces.patch 833 bytes
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Comment #8 on issue 1305 by ondrej.certik: sympy.roots not working for
slightly more complicated polynomials
http://code.google.com/p/sympy/issues/detail?id=1305
Ok, I'll merge both patches soon.
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Status: Accepted
Owner: ondrej.certik
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New issue 1351 by ondrej.certik: make Integral.subs() work
http://code.google.com/p/sympy/issues/detail?id=1351
In [3]: f = Lambda(x, exp(-x**2))
In [4]: conv = Integral(f(x-y)*f(y), (y, -oo, oo))
In
Status: Accepted
Owner: ondrej.certik
Labels: Type-Defect Priority-High Milestone-Release0.6.4
New issue 1352 by ondrej.certik: Make lambdify work with Integral:
http://code.google.com/p/sympy/issues/detail?id=1352
This should work:
In [3]: f = Lambda(x, exp(-x**2))
In [9]: l = lambdify(x,
I have copied the trigsimp code from simplify.py and modified it to work
with hyperbolic trig functions (see below). I am not ready to submit it
as a patch yet. I want to get more complicated examples of hyperbolic
trig simplification (ones that require the recursion option) and would
also
Ondrej Certik wrote:
Hi Alan!
On Thu, Mar 26, 2009 at 6:15 AM, Alan Bromborsky abro...@verizon.net wrote:
I have copied the trigsimp code from simplify.py and modified it to work
with hyperbolic trig functions (see below). I am not ready to submit it
as a patch yet. I want to get more
Alan Bromborsky wrote:
Ondrej Certik wrote:
Hi Alan!
On Thu, Mar 26, 2009 at 6:15 AM, Alan Bromborsky abro...@verizon.net wrote:
I have copied the trigsimp code from simplify.py and modified it to work
with hyperbolic trig functions (see below). I am not ready to submit it
Hi Vinzent,
I had guessed that was probably the case, I should have done the
obvious and run the tests before and after my patch. I think I was
tired.
However, I'm glad to see you're giving it a more descriptive name!
Andrew
On Mar 26, 1:27 am, Vinzent Steinberg
Need help in the development and use JMCAD
http://jmcad.sourceforge.net/
Project Information
JMCAD is an program for the modeling and simulation of complex dynamic
systems. This includes the ability to construct and simulate block
diagrams. The visual block diagram interface offers a simple
Hey guys,
We are sitting at a sprint, trying to use sympy to implement a clean way
of generation of numpy vectors.
What we want is to specify formulas for these vectors, and at the end of
the day, we sample these formulas on a given set of values. It is
important for us to seprate the
On Thu, Mar 26, 2009 at 6:45 PM, Gael Varoquaux
gael.varoqu...@normalesup.org wrote:
Hey guys,
We are sitting at a sprint, trying to use sympy to implement a clean way
of generation of numpy vectors.
What we want is to specify formulas for these vectors, and at the end of
the day, we
On Thu, Mar 26, 2009 at 07:17:14PM -0700, Ondrej Certik wrote:
But even when this is fixed --- it will still be a sympy integral. So
what do you want lambdify to do with it? keep it as a sympy integral
and you will then call .evalf() yourself on it, or make it somehow
call scipy.integrate? I
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