Re: [sympy] Re: Discussion regarding the series expansion project

2014-03-14 Thread Sergey Kirpichev
Hello, On Fri, Mar 7, 2014 at 3:29 AM, Avichal Dayal avichal.da...@gmail.comwrote: It would be great if you could look at my proposal (just an initial draft) and give suggestions:- https://github.com/sympy/sympy/wiki/GSoC-2014-Application-Avichal-Dayal-Series-Expansion Formal Power Series:

Re: [sympy] Re: First Order Logic - GSoC Proposal

2014-03-14 Thread Soumya Biswas
I have posted my proposalhttps://github.com/sympy/sympy/wiki/GSoC-2014-Application-Soumya-Dipta-Biswas:-First-Order-Logic. Please suggest improvements. Thank You -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop

Re: [sympy] Re: Discussion regarding the series expansion project

2014-03-14 Thread Alexey U. Gudchenko
On 14.03.2014 14:24, Sergey Kirpichev wrote: Hello, On Fri, Mar 7, 2014 at 3:29 AM, Avichal Dayal avichal.da...@gmail.comwrote: It would be great if you could look at my proposal (just an initial draft) and give suggestions:-

Re: [sympy] Re: Discussion regarding the series expansion project

2014-03-14 Thread Sergey Kirpichev
On Friday, March 14, 2014 6:24:15 PM UTC+4, pr...@goodok.ru wrote: Do you meant Laurent series? Yep, sorry -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop receiving emails from it, send an email to

Re: [sympy] Re: Can sympy do tensor based Euler-Lagrange?

2014-03-14 Thread Sergey Kirpichev
On Thursday, March 13, 2014 7:29:40 PM UTC+4, brombo wrote: If you are talking about Lagrangian field theory the question is how do you take a derivative with respect to the field and the gradient of the field and not with respect to the position vector the field is a function of. The

[sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Aaron Meurer
Another reminder for this. I will try to carve out some time this weekend to give comments on applications, but I will not do it for any application that is not on Melange. So please, everyone who plans to apply, put what you've got so far on Melange. There are quite a few people that I know what

[sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Sachin Joglekar
I will post mine by today night on melange. The proposal should probably be in its final draft then, so I wont have to change it much (I have my quizzes next week, so in a bit of a time crunch for the next few days). The formatting differences between wiki and melange are a pain though. On

Re: [sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Harsh Gupta
The formatting differences between wiki and melange are a pain though. Yes, especially the part with code block. On 14 March 2014 21:20, Sachin Joglekar srjoglekar...@gmail.com wrote: I will post mine by today night on melange. The proposal should probably be in its final draft then, so I

[sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Shipra Banga
I posted mine on melange but it still is a draft and is not formatted. -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to

[sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Shashank Aggarwal
Hey. I have submitted my proposal as well (on melange).Kindly review when you have the time. -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop receiving emails from it, send an email to

[sympy] Simplify expression

2014-03-14 Thread ecir . hana
Hi! I'm trying to simplify expressions in the form of a*b*c + d*e + f - g*h*h + i*a, basically the terms can be either added or subtracted and each term is a product of some symbols. For example, I would like to turn the expression: a**4 - 4*a**3*b + 6*a**2*b**2 - 4*a*b**3 - a + b**4

[sympy] Re: Simplify expression

2014-03-14 Thread Sergey Kirpichev
On Friday, March 14, 2014 9:30:24 PM UTC+4, ecir...@gmail.com wrote: 3. If I knew that one term is in the form of (a - b), would the help? Yes, for example: In [2]: e = a**4 - 4*a**3*b + 6*a**2*b**2 - 4*a*b**3 - a + b**4 In [3]: e Out[3]: 4 32 234 a - 4⋅a ⋅b

[sympy] GSoc 2014:Proposal of a new idea

2014-03-14 Thread Rishabh Mishra
Respected Sir, I am Rishabh Mishra,2nd yr undergrad B.E.(hons.) Chemical Engineering student from Birla Institue of Technology and Science Pilani,Goa Campus.I am new to python,but have a very sound background of java and c.I recently got introduced to see about 4 months ago and was fascinated

[sympy] citation in scientific article

2014-03-14 Thread Steffi L
Hi, I am using the module nsolve of the SymPy package and want to refer to it in a scientific article. Is there any convention how to cite it? Thanks, Stef -- You received this message because you are subscribed to the Google Groups sympy group. To unsubscribe from this group and stop

Re: [sympy] citation in scientific article

2014-03-14 Thread Joachim Durchholz
Am 14.03.2014 20:57, schrieb Steffi L: Hi, I am using the module nsolve of the SymPy package and want to refer to it in a scientific article. Is there any convention how to cite it? See https://github.com/sympy/sympy/blob/master/README.rst#citation for details. -- You received this message

Re: [sympy] citation in scientific article

2014-03-14 Thread Matthew Rocklin
Jason's answer is probably the one to go with practically speaking. Philosophically speaking though, module specific citations might be interesting. Presumably these could be auto-generated. Maybe we could hack up a little 'cite' function that returns bibtex for any module by inspecting the git

Re: [sympy] citation in scientific article

2014-03-14 Thread Jason Moore
Very cool idea. Having a tool that could build citations based on what functionality you used in your paper would be interesting. The only issues is where to draw the line on significant contributions and how far back in the tree you go. Linus and Dennis Ritchie may have get the most citations if

[sympy] Re: GSoc 2014:Proposal of a new idea

2014-03-14 Thread Manoj Kumar
Hi Rishabh, I had a really similar idea, and I would love to help you (though I cannot mentor this summer) 1. The very little amount of heat/mass transfer that I've just read to pass my grades requires solving for PDE's or ODE's numerically, if I'm not wrong. Could you please be more specific

Re: [sympy] GSoc 2014:Proposal of a new idea

2014-03-14 Thread Tim Lahey
Solution of ODEs and PDEs numerically fits with SciPy, not Sympy. sympy.physics.fluids and sympy.physics.thermodynamics would only make sense for modules that support the derivation of equations in those fields. That's what the mechanics and the quantum physics modules do. Cheers, Tim. On

Re: [sympy] citation in scientific article

2014-03-14 Thread Joachim Durchholz
Am 14.03.2014 21:26, schrieb Jason Moore: The only issues is where to draw the line on significant contributions and how far back in the tree you go. Linus and Dennis Ritchie may have get the most citations if we're not careful. Don't forget to cite Muḥammad ibn Mūsā al-Khwārizmī. (I think

[sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Matthew Rocklin
From Wikipedia: The stated goals of the library are to become a full-featured computer algebra system https://en.wikipedia.org/wiki/Computer_algebra_systemand... From SymPy's tutorial heading It aims to become a full-featured computer algebra system (CAS) while... Are we not a

Re: [sympy] citation in scientific article

2014-03-14 Thread Matthew Rocklin
Ha, maybe instead of scraping out contributors to all technology related to a *paper* we could limit ourselves to scraping out the contributors to a* module *of a library. This seems more tractable :) Heck though, if we wanted to give credit back to Muḥammad ibn Mūsā al-Khwārizmī we could start

Re: [sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Brian Granger
We are! On Fri, Mar 14, 2014 at 2:44 PM, Matthew Rocklin mrock...@gmail.com wrote: From Wikipedia: The stated goals of the library are to become a full-featured computer algebra system and... From SymPy's tutorial heading It aims to become a full-featured computer algebra system

Re: [sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Aaron Meurer
Depends on how you define full featured. There are always more things to do: more kinds of integrals to compute, more kinds of equations to solve, more areas of mathematics that deserve treatment. Even Mathematica is not full featured by this view. But I think we definitely have what can be

Re: [sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Matthew Rocklin
I'm not pushing for version numbers. I'm just pushing for a language change. In wiki spirit I'll just go ahead and edit the Wikipedia page when I get home. On Fri, Mar 14, 2014 at 3:07 PM, Aaron Meurer asmeu...@gmail.com wrote: Depends on how you define full featured. There are always more

Re: [sympy] Re: Don't forget to submit your GSoC proposals in Melange

2014-03-14 Thread Aaron Meurer
Regarding the formatting issues: if you can't work around Melange formatting, put a link to your proposal on the Wiki at the top of the page (but still include the full proposal text in Melange). I was a student two years, so I know quite well how painful formatting is in their editor. We won't

Re: [sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Joachim Durchholz
Am 14.03.2014 23:07, schrieb Aaron Meurer: Honestly, in my view, the only reason that we should continue to keep the 0 in the front of the version number is the assumptions. Once we get that fixed, we should release SymPy 1.0. But what do I know. Maybe SymPy 1.0 should be released now, and when

Re: [sympy] Can we call ourselves a full-featured CAS?

2014-03-14 Thread Aaron Meurer
Historically, the purpose of the 0 has not been features but API stability. That's my main motivation for waiting for the assumptions. Aaron Meurer On Fri, Mar 14, 2014 at 5:31 PM, Joachim Durchholz j...@durchholz.org wrote: Am 14.03.2014 23:07, schrieb Aaron Meurer: Honestly, in my view, the

[sympy] Re: GSoc 2014:Proposal of a new idea

2014-03-14 Thread Rishabh Mishra
ThankYou for the reply. I want to add libraries for directly solve eqations of navier's stoke and other's using some standard data, ad calculation of pressure drops for a flow across the pipe. As mentioned by Tim, if this doesn't fall under SymPy then maybe i should move this discussion to

[sympy] Re: GSoC 2014 : sympy.vector project

2014-03-14 Thread Sachin Joglekar
Hello everyone. I have updated my proposal as per extensive inputs from Jason and Gilbert. It's been decided that retaining ReferenceFrame and Point as two different classes is more advantageous than combining them into a cluttered 'MovingRefFrame' class. The most important part of the project

Re: [sympy] GSoc 2014:Proposal of a new idea

2014-03-14 Thread Tim Lahey
Solving Navier-Stokes involves solving a system of PDEs numerically, so that falls outside Sympy. As for calculation of pressure drops for flow across a pipe, those aren't even close to enough for a GSoC project. To be honest, Navier-Stokes doesn't really fit too well with SciPy as it's kind

Re: [sympy] citation in scientific article

2014-03-14 Thread Aaron Meurer
The copyright of SymPy is SymPy Development Team, so that's who you should cite. The full team is listed in AUTHORS. Aaron Meurer On Fri, Mar 14, 2014 at 4:51 PM, Matthew Rocklin mrock...@gmail.com wrote: Ha, maybe instead of scraping out contributors to all technology related to a paper we

Re: [sympy] Regarding the topic of my Proposal

2014-03-14 Thread Aaron Meurer
I think at least ii is already implement. The patch submission deadline is the same as the proposal deadline. Aaron Meurer On Wed, Mar 12, 2014 at 2:54 PM, Kundan Kumar kundankumar18...@gmail.com wrote: Hi, I would like to discuss the topic that I want to implement in sympy in gsoc 2014. I

Re: [sympy] GSOC'14 Idea, Addition of Physics Modules to sympy.physics

2014-03-14 Thread Aaron Meurer
Don't forget there is also a patch requirement. See https://github.com/sympy/sympy/wiki/gsoc-2014-application-template. Aaron Meurer On Wed, Mar 12, 2014 at 3:01 AM, Vamsi Kurama vamsi.kur...@gmail.com wrote: Hi Everyone, Firstly I would like to thank the Sympy for making the the library

Re: [sympy] [GSoc] Proposal about the Assumptions module

2014-03-14 Thread Aaron Meurer
Sorry for the late reply. You should take a look at the work that is being done at https://github.com/sympy/sympy/pull/2508. Also remember that for GSoC there is a patch requirement (pardon me if you already submitted one; I'm still sifting through emails). Aaron Meurer On Tue, Mar 11, 2014 at

Re: [sympy] Re: Feedback on step-by-step thought

2014-03-14 Thread Aaron Meurer
On Mon, Mar 3, 2014 at 2:03 PM, RAJAT AGGARWAL rajataggarwal1...@gmail.com wrote: Hi I was working on the other parts of the sympy code, to understand the much part of it so that i can have ideas for this project that how we can reduce new step_eval functions to implement step-by-step

[sympy] Re: GSOC - Potential Student for Linearization Project

2014-03-14 Thread Aaron Meurer
On Thu, Mar 13, 2014 at 11:37 AM, Jason Moore moorepa...@gmail.com wrote: Some comments: - In general, you can only use the Jacobian if you have an unconstrained system and the operating point is zero. If the operating point is not zero, then you need the full linear portion of the Taylor

Re: [sympy] I want to implement Karr algorithm

2014-03-14 Thread Aaron Meurer
Bronstein's book is probably overkill, but probably an intro paper to the algorithm wouldn't hurt. Aaron Meurer On Thu, Mar 13, 2014 at 6:14 PM, someone someb...@bluewin.ch wrote: Hi, Although understanding at least the basics of the Risch algorithm should help too, as the Karr algorithm is

Re: [sympy] [GSoC] Linear Algebra Module for CSymPy

2014-03-14 Thread Thilina Rathnayake
Thank you Ondrej and Tim for your inputs. I too think we should concentrate on Symbolic matrix manipulation rather than the numerical matrices since there are good libraries we can use to do them. The approach used in Armadillo is that if the user is willing to install additional libraries it

Re: [sympy] [GSoC] Linear Algebra Module for CSymPy

2014-03-14 Thread Ondřej Čertík
On Fri, Mar 14, 2014 at 4:26 PM, Thilina Rathnayake thilina.r...@gmail.com wrote: Thank you Ondrej and Tim for your inputs. I too think we should concentrate on Symbolic matrix manipulation rather than the numerical matrices since there are good libraries we can use to do them. The approach