[sympy commit] r3171 - Edited wiki page through web user interface.

Author: ondrej.certik Date: Sun Mar 29 20:25:55 2009 New Revision: 3171 Modified: wiki/NewRelease.wiki Log: Edited wiki page through web user interface. Modified: wiki/NewRelease.wiki == --- wiki/NewRelease.wiki

[sympy commit] r3173 - Edited wiki page through web user interface.

Author: ondrej.certik Date: Sun Mar 29 20:53:42 2009 New Revision: 3173 Modified: wiki/NewRelease.wiki Log: Edited wiki page through web user interface. Modified: wiki/NewRelease.wiki == --- wiki/NewRelease.wiki

Issue 1188 in sympy: integrate(1/sin(x)**2,x) fails

Comment #6 on issue 1188 by akshaysrinivasan: integrate(1/sin(x)**2,x) fails http://code.google.com/p/sympy/issues/detail?id=1188 I made a very rough patch which adds support for integration of the forms sin(x)**(-n)*cos(x)**(-m) , it also seems to fix this issue. Attachments:

Issue 1355 in sympy: factor(expand((sin(x)+sin(y))*(cos(x)+cos(y)))) fails

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 1355 by ondrej.certik: factor(expand((sin(x)+sin(y))*(cos(x)+cos(y fails http://code.google.com/p/sympy/issues/detail?id=1355 In [2]: e = (sin(x)+sin(y)*(cos(x)+cos(y))) In [3]: e Out[3]: (cos(x) + cos(y))⋅sin(y) +

Issue 1172 in sympy: example: curve sketching

Updates: Labels: NeedsReview Milestone-Release0.6.4 Comment #6 on issue 1172 by ondrej.certik: example: curve sketching http://code.google.com/p/sympy/issues/detail?id=1172 I fixed it: In [1]: var(x y a) Out[1]: (x, y, a) In [2]: f = 4*x*(1 - a*x**(S(1)/2)) In [3]: solve(f, x) Out[3]:

Issue 1172 in sympy: example: curve sketching

Comment #7 on issue 1172 by ondrej.certik: example: curve sketching http://code.google.com/p/sympy/issues/detail?id=1172 It doesn't solve all the problems with the graph.py, but it shows how to approach it. If you have time Vinzent -- could you please open an issue for each equation that

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Updates: Labels: NeedsReview Comment #33 on issue 1052 by ondrej.certik: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 Ok, how about the following patch. Attachments: 0001-Printing-precision-fixed-all-over-sympy-1052.patch 4.9 KB

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Comment #34 on issue 1052 by ondrej.certik: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 All tests pass, only the following doctests fail:

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Comment #37 on issue 1052 by ondrej.certik: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 Forgot to attach the patches. Attachments: 0001-Printing-precision-fixed-all-over-sympy-1052.patch 11.0 KB

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Comment #38 on issue 1052 by fredrik.johansson: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 This seems fine to me. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Comment #39 on issue 1052 by ondrej.certik: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 Ok, pushing it in. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may

Issue 1052 in sympy: 2.0 * x**2 should print more nicely

Updates: Status: Fixed Comment #40 on issue 1052 by ondrej.certik: 2.0 * x**2 should print more nicely http://code.google.com/p/sympy/issues/detail?id=1052 This is in, so I consider this as fixed. In [1]: e = 2.00 * x**2 In [2]: e Out[2]: 2 2.0⋅x In [3]: repr(e) Out[3]:

Issue 1352 in sympy: Make lambdify work with Integral:

Updates: Cc: Gael.Varoquaux Comment #1 on issue 1352 by ondrej.certik: Make lambdify work with Integral: http://code.google.com/p/sympy/issues/detail?id=1352 Working on this, I know where the problem is. -- You received this message because you are listed in the owner or CC fields of

Issue 1357 in sympy: enhance Integegral.evalf() by an option to use scipy for evaluation

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 1357 by ondrej.certik: enhance Integegral.evalf() by an option to use scipy for evaluation http://code.google.com/p/sympy/issues/detail?id=1357 In [1]: Integral(exp(-x**2), (x, -oo, oo)) Out[1]: ∞ ⌠ ⎮ 2 ⎮ -x ⎮ ℯ

Issue 1352 in sympy: Make lambdify work with Integral:

Updates: Status: Started Labels: NeedsReview Comment #2 on issue 1352 by ondrej.certik: Make lambdify work with Integral: http://code.google.com/p/sympy/issues/detail?id=1352 There were couple bugs here and there, I fixed them. Now: In [1]: f = Lambda(x, exp(-x**2)) In [2]: l

Issue 1357 in sympy: enhance Integegral.evalf() by an option to use scipy for evaluation

Comment #1 on issue 1357 by ondrej.certik: enhance Integegral.evalf() by an option to use scipy for evaluation http://code.google.com/p/sympy/issues/detail?id=1357 Internally it should use lambdify on the integrand, so that the scipy integrator is fast. -- You received this message because

Issue 1291 in sympy: reduce the import sympy time

Updates: Labels: -Milestone-Release0.6.4 Milestone-Release0.6.5 Comment #20 on issue 1291 by ondrej.certik: reduce the import sympy time http://code.google.com/p/sympy/issues/detail?id=1291 If someone has time to work on this, feel free to do so before the release. -- You received this

Issue 1352 in sympy: Make lambdify work with Integral:

Comment #3 on issue 1352 by ondrej.certik: Make lambdify work with Integral: http://code.google.com/p/sympy/issues/detail?id=1352 David Roberts on IRC: strebor ondrej: the proposed patches look good to me so I am going to merge it. -- You received this message because you are listed in the

Issue 1188 in sympy: integrate(1/sin(x)**2,x) fails

Comment #7 on issue 1188 by akshaysrinivasan: integrate(1/sin(x)**2,x) fails http://code.google.com/p/sympy/issues/detail?id=1188 Sorry, there were some trivial errors in the previous patch. Here's another one with more documentation :) Attachments:

Re: hyperbolic trig simplification

On Mar 28, 3:57 pm, Alan Bromborsky abro...@verizon.net wrote: Vinzent Steinberg wrote: On Mar 27, 4:55 pm, Ondrej Certik ond...@certik.cz wrote: On Fri, Mar 27, 2009 at 8:34 AM, Vinzent Steinberg vinzent.steinb...@googlemail.com wrote: This is strange, because just constructing

Re: [PATCH 3/3] solve( x**Rational(1,2) - 2, x) fixed

Ondrej Certik wrote: it used to return [sqrt(2)], but the answer is [4]. There was a bug in the solver, that noone has noticed so far: it did everything correctly, only at the very end it should power the result to m, and it used to power it to 1/m, which is wrong. all patches are +1. This

Re: [PATCH 1/1] Fixed typo in docstring

thanks for the patch, it's in. http://git.sympy.org/?p=sympy.git;a=commit;h=2caa23edfc41b2fd2bd30bb6ac59855896deb549 Aaron Meurer wrote: --- sympy/simplify/simplify.py |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sympy/simplify/simplify.py

[sympy] Evaluating gamma with .evalf gamma(n).evalf(subs={n:i})

Hello. I wonder why gamma(n).evalf(subs={n:i}) works only when i2 gamma(n).evalf(subs={n:3}) 2.00 gamma(n).evalf(subs={n:2}) gamma(n) gamma(n).evalf(subs={n:1}) gamma(n) gamma(n).evalf(subs={n:4}) 6.00 --~--~-~--~~~---~--~~ You

[sympy] Re: General stratetegy for deferred evaluation of convolution

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

[sympy] Re: Google Summer of Code 2009

Hey! I just noticed that my name made it to the AUTHORS file. Cool. Aaron --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sympy group. To post to this group, send email to sympy@googlegroups.com To unsubscribe from