[sympy] Time Dependent/Independent Perturbation

2014-03-04 Thread Anurag Hota
Issue in #2978 Ondrej, I made it both time dependent/independent perturbation. The issue is for 2nd order correction in time independent perturbation, it show the term infinity whereas i want a summation. How do i add that? ∞(n|kx|n)2+(0|kx|n)2E(n)−E(0) -- You received this message because

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Sergey Kirpichev
Any feedback? I don't have a good idea what to do next. Every mentioned problem in the test repo was solved one way or another (see labels Migration-Bugs and Migration-Bugs-Done). We can do a new test (final?) import as before, in one repo, or we can also split issues, labeled Live (~80) to a

[sympy] Re: complex numbers

2014-03-04 Thread Sergey Kirpichev
On Tuesday, March 4, 2014 9:38:22 AM UTC+4, Chris Smith wrote: Something that seems a little counter-intuitive to me (having now worked with the assumptions a bit) is the decision to let 2, I and 2 + I all be considered complex I'm little surprised, what could be counter-intuitive here

Re: [sympy] Re: complex numbers

2014-03-04 Thread Christophe Bal
Hello. Maybe, having the smallest standard set of a nulber could be a good thing. Here are some examples. 1. 1 is an integer. 2. 1/2 is a rational. 3. 2.3 and pi are reals. 4. 2i and i are imaginary complexes. 5. 4+5i is a complex. Then something like integer + complex should be

[sympy] Re: GSOC Project

2014-03-04 Thread Jigar Mistry
ok if this is difficult no problem i will try my best to do but can you give me some reference to this? On Monday, 3 March 2014 21:38:23 UTC+5:30, Jigar Mistry wrote: Hello i am jigar mistry. I want to implement following module during gsocConcrete module: Implement Karr algorithm, a

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Matthew Rocklin
When I looked at this I was generally impressed by it. I'm sure that we'll run into lots of issues *after* we make the transition. Until then it looks great! On Tue, Mar 4, 2014 at 3:14 AM, Sergey Kirpichev skirpic...@gmail.comwrote: Any feedback? I don't have a good idea what to do next.

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Aaron Meurer
I agree. Unless there are known major issues, we should do the final import. Let me know when you want me to freeze the Google Code issues. Aaron Meurer On Tue, Mar 4, 2014 at 9:37 AM, Matthew Rocklin mrock...@gmail.com wrote: When I looked at this I was generally impressed by it. I'm sure

Re: [sympy] Chase Relock - GSOC interest in Group Theory, ODEs, or possibly Statistical Finance

2014-03-04 Thread F. B.
On Tuesday, March 4, 2014 6:18:18 AM UTC+1, Chase Relock wrote: I was looking at SymPy's matrix code and was curious if that supports symbolic computation right now or is it only numeric? Of course you can put symbols inside sympy matrices (if that is what you mean), for numeric-only

Re: [sympy] Chase Relock - GSOC interest in Group Theory, ODEs, or possibly Statistical Finance

2014-03-04 Thread Matthew Rocklin
By the way, I have been using the sympy.stats module, and I get a lot of *NotImplementedError*, and other kinds of errors. Finishing that parts would be great, too. I'd be curious to know how you're using it and what unimplemented features are important to you. This discussion should maybe

Re: [sympy] Queries regarding Symoblic Quantum Computing

2014-03-04 Thread Ondřej Čertík
Hi Varun, On Sun, Mar 2, 2014 at 3:18 AM, Varun Chappidi varun.chapp...@gmail.com wrote: Sir, I'm Varun Chappidi, a fourth year undergraduate student pursuing a dual degree in M.Sc Physics and B.E in Electrical and Electronics Engineering at BITS Pilani University, India. I'm particularly

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Sergey B Kirpichev
On Tue, Mar 04, 2014 at 10:59:40AM -0600, Aaron Meurer wrote: I agree. Unless there are known major issues, we should do the final import. Let me know when you want me to freeze the Google Code issues. I think, it's important to fix contacts first. Wery unlikely if we can do this after import.

Re: [sympy] [GSOC-2014]- CSymPy implementation of elementary functions-Introduction

2014-03-04 Thread Ondřej Čertík
Hi Kunal, On Fri, Feb 28, 2014 at 2:48 AM, kunal arora kunalarora@gmail.com wrote: Hello , my name is Kunal Arora. I am a 2nd year engineering(IT) undergraduate from NSIT,Delhi(India). I am proficient in c/c++ and have been programming in c/c++ for quite a while now . Although i haven't

Re: [sympy] Issue migration from Google Code to GitHub

2014-03-04 Thread Tim Lahey
I don't think I'm listed on any issues on Google Code. I'm tjl on GitHub. Cheers, Tim. On 4 Mar 2014, at 13:31, Sergey B Kirpichev wrote: On Tue, Mar 04, 2014 at 10:59:40AM -0600, Aaron Meurer wrote: I agree. Unless there are known major issues, we should do the final import. Let me know

Re: [sympy] Time Dependent/Independent Perturbation

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 4:08 AM, Anurag Hota ahot...@gmail.com wrote: Issue in #2978 Here is the link: https://github.com/sympy/sympy/pull/2978 Ondrej, I made it both time dependent/independent perturbation. The issue is for 2nd order correction in time independent perturbation, it show

Re: [sympy] GSoC 2014: Regarding Plotting ideas.

2014-03-04 Thread Ondřej Čertík
Hi Shashank, On Mon, Mar 3, 2014 at 6:33 AM, Shashank Aggarwal shashank.agarwa...@gmail.com wrote: Hey.. I am Shashank Aggarwal, 2nd year CSE student from NIT-Karnataka.I have a few questions regarding the plotting ideas: Thanks for your interest. 1. Improving the plotting module has many

Re: [sympy] GSOC-2014 Mathematics solvers

2014-03-04 Thread Ondřej Čertík
Hi Akash, On Mon, Mar 3, 2014 at 3:20 PM, Akash Bindal akashbinda...@gmail.com wrote: Hi everyone I am Akash Bindal ,3rd yr student from iit-bhu,india. I am inetrested in working on Mathematics Solvers. can anyone tell me what are the requirements for this project and how to approach it.

Re: [sympy] Group theory

2014-03-04 Thread Ondřej Čertík
Hi Tavneet, On Sun, Mar 2, 2014 at 12:50 PM, Tavneet Sarna tavneet.1...@gmail.com wrote: Hi, I am Tavneet Singh, doing a bachelor's in computer science at IIITD. I am currently in my second year. Group theory as a topic seems really interesting and implementing it would be a nice challenge.

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Ondřej Čertík
Hi Akshay, I think in general it is a good idea to be able to work with 3D geometric objects. Why don't you start by writing some very quick prototype, as part of your proposal. For example intersection of 2 lines in 3D, or a plane and a line. Write up the functions/classes necessary for that.

Re: [sympy] Equivalent of FullForm form Mathematica

2014-03-04 Thread Ondřej Čertík
Hi Christophe, On Mon, Mar 3, 2014 at 8:30 AM, Christophe Bal projet...@gmail.com wrote: Hello. Is there an equivalent of FullForm that produces simple treeview of a formula ? Here is basic example seen in a video. FullForm[x**2+x**3] = Plus[Power[x, 2], Power[y, 3]] We have this: In [1]:

Re: [sympy] GSoC, Work in Group Theory

2014-03-04 Thread Ondřej Čertík
Hi Antonio, On Mon, Mar 3, 2014 at 12:09 AM, Antonio González Fernández antoniogf0...@gmail.com wrote: Hi. I'm Antonio González Fernández, from México. I'm a student of second year of bachelor's degree in mathematics and I have using Python for a year. I have taken a course of Group Theory,

Re: [sympy] New PEP for infix operator

2014-03-04 Thread Ondřej Čertík
On Sat, Mar 1, 2014 at 11:49 AM, Aaron Meurer asmeu...@gmail.com wrote: I mostly posted on this list because the author of the PEP wanted some input from people with knowledge of tensor mathematics, so that the parts about higher dimensional arrays could be spelled out with a bit more rigour,

Re: [sympy] Group Theory

2014-03-04 Thread Ondřej Čertík
Hi Keshaw, On Sat, Mar 1, 2014 at 4:50 AM, Keshaw Pathak knpsi...@gmail.com wrote: I'm Keshaw Narayan Pathak, a sophomore computer science undergrad from NIT Raipur. I got interested in Group Theory . But what actually i have to do is not clear. I have develop software that understand these

Re: [sympy] Re: asymptotic expansion of sin and cos at infinity

2014-03-04 Thread Ondřej Čertík
On Sat, Mar 1, 2014 at 6:39 AM, Sergey Kirpichev skirpic...@gmail.com wrote: On Saturday, March 1, 2014 5:35:01 PM UTC+4, Avichal Dayal wrote: Perhaps, something to indicate an error. But there are instances where series(sin(x), x, oo) is used by other methods For e.g.:- gruntz((sin(x) +

Re: [sympy] Implementation of second order ODEs

2014-03-04 Thread Ondřej Čertík
Hi Kundan, On Fri, Feb 28, 2014 at 2:53 AM, kundan.kumar.ee...@itbhu.ac.in wrote: Hi Everyone, I am a B.tech student in Electrical Engineering at IIT-BHU, Varanasi, India. I found few interesting ideas in SymPy Gsoc 2014 page in which implementation of second order ODEs caught my attention.

Re: [sympy] Equivalent of FullForm form Mathematica

2014-03-04 Thread Mateusz Paprocki
Hi, On 3 March 2014 16:30, Christophe Bal projet...@gmail.com wrote: Hello. Is there an equivalent of FullForm that produces simple treeview of a formula ? Here is basic example seen in a video. FullForm[x**2+x**3] = Plus[Power[x, 2], Power[y, 3]] In [1]: srepr(x**2 + x**3) Out[1]:

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Akshay
@ondrej Thanks for the quick reply . As you pointed out I have been working on the prototype for past few days and for the intersection of two lines it looks something like this: a = Line(Point(1,2,3),Point(2,3,4)) b = Line(Point(5,5,5),Point(-8,-6,-3)) a.interection(b) = Point(-1.5, -0.5,

Re: [sympy] Re: Improvement in Group Theory Module

2014-03-04 Thread Ondřej Čertík
Hi Vishnu, Thanks for your interest. On Fri, Feb 28, 2014 at 6:12 AM, Vishnu Agarwal vishnu270...@gmail.com wrote: @ProspectiveMentor: Please reply to this post so that I can further discuss it.. On Friday, February 28, 2014 1:44:05 PM UTC+5:30, Vishnu Agarwal wrote: Hi, I am a

Re: [sympy] Introduction for GSOC

2014-03-04 Thread Ondřej Čertík
Hi Pallav, On Fri, Feb 28, 2014 at 1:59 PM, Pallav Shah pallavshah...@gmail.com wrote: Hello everyone, I am Pallav, a third year undergraduate student pursuing my bachelors in Computer Science. I am interested in doing a project under SymPy as a part of GSOC. However, I am not sure how I

[sympy] Ordinary Differential equations

2014-03-04 Thread Prakhash siva
Hi all, I'm a 2nd year Computer Science and Engineering student from University of Moratuwa. I'm good in programming and Mathematics. I'm currently using Java, PHP and C for my programing activities but I have sufficient theoretical knowledge in python. I have learned Algorithms and object

[sympy] GSoC: interest in ODE

2014-03-04 Thread Dazhuang Su
Hi all, My name is Dazhuang Su. I'm currently a student, 2nd year in UESTC. I have experience in programming python. And I have done 2 projects about mathematics, utilizing Wavelet to optimize BP neural network and detecting community with the help of random walks(Markov Chains). I learned some

Re: [sympy] Re: GSoC 2014: Improving the plotting module

2014-03-04 Thread Ondřej Čertík
Hi Ambar, Thanks for your interest and sorry for my late reply. You can start by browsing all the plotting issues to get an idea what needs to be implemented: http://code.google.com/p/sympy/issues/list?q=label:Plotting Ondrej On Wed, Feb 26, 2014 at 10:40 AM, Ambar Mehrotra

Re: [sympy] Univariate polynomials over algebraic domains

2014-03-04 Thread Ondřej Čertík
Hi Rishabh, On Mon, Feb 24, 2014 at 3:17 PM, Rishabh Kumar kris.kr...@gmail.com wrote: hello i was going through the ideas page when i came across the project of implementing univariate polynomials over algebraic domains. when i was going through the works of Monagan, Pearce, and van Hoeij ,

Re: [sympy] Contributing to SymPy

2014-03-04 Thread Ondřej Čertík
Hi Mitesh, The best is to start with these two pages: https://github.com/sympy/sympy/wiki/gsoc-2014-ideas https://github.com/sympy/sympy/wiki/gsoc-2014-application-template That should give you some ideas for interesting projects that you could propose. Ondrej On Sat, Feb 22, 2014 at 1:22 PM,

Re: [sympy] Applying for GSoC 2014

2014-03-04 Thread Ondřej Čertík
Hi Hithesh, On Fri, Feb 14, 2014 at 7:00 PM, MACHAVARAPU HITHESH CHOWDARY hithesh...@gmail.com wrote: Hi, I am intrested in joining the sympy team for GSoC 2014. I have considerable knowledge in Maths,Physics and programming. I would like to help in any aspect possible. You can start

Re: [sympy] GSoC: Introducing Optical Physics

2014-03-04 Thread Sudhanshu Mishra
Hi Ondřej, Yes,introducing optics using SymPy will reduce a lot of effort in teaching and learning and the practical applications of the same. From basics optics like Snell's law, Principle of least time, lens shifts to scientific level such as applications in fibre optics and cost effective

Re: [sympy] Contributing to Sympy

2014-03-04 Thread Ondřej Čertík
Hi Abhishek, On Wed, Feb 12, 2014 at 12:18 PM, Abhishek Bhat abhishek.2...@gmail.com wrote: Hi, I Abhishek Bhat would like to formally introduce myself.I am currently pursuing Computer Science and Engineering from International Institute Of Information Technology (IIIT)

Re: [sympy] Contributing in SymPy

2014-03-04 Thread Ondřej Čertík
Hi Bhumik, On Wed, Feb 12, 2014 at 12:18 PM, Bhumik Shah bhumiksha...@gmail.com wrote: Hi, I Bhumik Shah would like to introduce myself . I am currently pursuing Btech. In Computer Science and Engineering from IIIT Hyderabad . I am following the mailing list for quite some time and I am

Re: [sympy] Implement All Known Analytical Solutions to Quantum Mechanical Systems

2014-03-04 Thread Ondřej Čertík
Hi Manish, On Mon, Feb 10, 2014 at 4:20 AM, Manish Shukla manish.shukla...@gmail.com wrote: Hello I am Manish Shukla. I am 3rd year undergraduate student enrolled in dual degree(B.tech CSE + MS(by research) Quantum Computation and dynamics) at IIIT-Hyderabad , I am currently working in

Re: [sympy] Gsoc-14 : Extending the geometry module to 3 dimensions.

2014-03-04 Thread Ondřej Čertík
Hi Akshay, On Mon, Feb 10, 2014 at 6:42 AM, Akshay akshaynukal...@gmail.com wrote: Hello, I have been working with the geometry module for the past one month and have successfully submitted a few patches for it.Currently the module supports only till 2 dimensions ,so I would like extend this

Re: [sympy] GSOC 2014: SymPy Live and SymPy Gamma (on Google App Engine).

2014-03-04 Thread Ondřej Čertík
Hi Akash, On Sun, Feb 9, 2014 at 8:34 AM, Akash Agarwal akash...@gmail.com wrote: Hi, I am a junior year student at IIIT Hyderabad and a GSOC wannabe. I wen't through the ideas page found some of them interesting, especially SymPy Live and SymPy Gamma (on Google App Engine). My skill set

Re: [sympy] Another GSoc' 14 - CSymPy

2014-03-04 Thread Ondřej Čertík
Hi Raymond, On Sat, Feb 8, 2014 at 12:50 PM, Raymond Joseph raymond.josep...@gmail.com wrote: Hi there! I'm Raymond, a master's student in Electrical Engg. and Comp Sci, perusing some of the ideas on the forum, this one caught my fancy, among others. Implement More Elementary Functions

Re: [sympy] sympy-notebook instead ipython-notebook implemendation

2014-03-04 Thread Ondřej Čertík
Hi Varun, On Sat, Feb 8, 2014 at 1:17 AM, Varun Sharma va...@sharmalabs.com wrote: Hi all, I was looking into gsoc ideas list and having background in django, sympy-gamma and sympy-live came out to be my natural choice.I want to discuss about the ipython-notebook implementation in sympy. I am

Re: [sympy] Equivalent of FullForm form Mathematica

2014-03-04 Thread Christophe Bal
Thanks for this two answers. Christophe 2014-03-04 20:25 GMT+01:00 Mateusz Paprocki matt...@gmail.com: Hi, On 3 March 2014 16:30, Christophe Bal projet...@gmail.com wrote: Hello. Is there an equivalent of FullForm that produces simple treeview of a formula ? Here is basic example

Re: [sympy] Re: GSOC 2014: Series expansion

2014-03-04 Thread Ondřej Čertík
Hi Avichal, Sorry that nobody got in touch with you. I think there are couple ideas how to improve the speed, as you mentioned, e.g.: series(sin(x)*cos(x), x, 1000) I am also interested in getting this done in CSymPy: https://github.com/certik/csympy and compare against Mathematica etc. for

Re: [sympy] Equivalent of FullForm form Mathematica

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 12:25 PM, Mateusz Paprocki matt...@gmail.com wrote: Hi, On 3 March 2014 16:30, Christophe Bal projet...@gmail.com wrote: Hello. Is there an equivalent of FullForm that produces simple treeview of a formula ? Here is basic example seen in a video. FullForm[x**2+x**3]

Re: [sympy] GSoC: interest in ODE

2014-03-04 Thread Ondřej Čertík
Hi Dazhuang, On Tue, Mar 4, 2014 at 8:46 AM, Dazhuang Su lovelo...@gmail.com wrote: Hi all, My name is Dazhuang Su. I'm currently a student, 2nd year in UESTC. I have experience in programming python. And I have done 2 projects about mathematics, utilizing Wavelet to optimize BP neural

Re: [sympy] Ordinary Differential equations

2014-03-04 Thread Ondřej Čertík
Hi Prakhash, On Tue, Mar 4, 2014 at 10:06 AM, Prakhash siva prakhashsiv...@gmail.com wrote: Hi all, I'm a 2nd year Computer Science and Engineering student from University of Moratuwa. I'm good in programming and Mathematics. I'm currently using Java, PHP and C for my programing activities

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Ondřej Čertík
Hi Akshay, On Tue, Mar 4, 2014 at 12:28 PM, Akshay akshaynukal...@gmail.com wrote: @ondrej Thanks for the quick reply . As you pointed out I have been working on the prototype for past few days and for the intersection of two lines it looks something like this: a =

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Aaron Meurer
My understanding was that it could be fixed after import if the user adds that email to their account. But let's just canonicalize those four users on their know GitHub emails. Raoul, David, Jason, Sachin, can you tell us which emails you have on your GitHub account and which one(s) you have on

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Christophe Bal
Hello. In your prototype, you have written : b.arbitrary_point('z') = Point(-13*z +5, -11*z+5, -8z+5) c=Line(Point(2,3), Point(3,5)) # Here the default value of z is taken as 0 Why don't you work with a symbolic variable z ? You will also have to take care of point in segment for example.

Re: [sympy] Equivalent of FullForm form Mathematica

2014-03-04 Thread Aaron Meurer
There is also dotprint(). That, along with srepr(), is what the tutorial uses to explain how expressions are implemented as a tree(*) http://docs.sympy.org/latest/tutorial/manipulation.html. In the SymPy Live shell, you can change the output format to Repr to always get the srepr() form of an

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Akshay
c=Line(Point(2,3), Point(3,5)) # Here the default value of z is taken as 0 I meant that the z co-ordinate of the point is taken as 0. -- 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,

[sympy] init_printing() in IPython Notebook should do use_latex=True

2014-03-04 Thread Ondřej Čertík
Hi, It used to be the case, that I just did: init_printing() in IPython Notebook and it initialized the Latex (mathjax) printing by default. Now when I do init_printing(), it uses unicode ascii art printing instead. I have to do: init_printing(use_latex=True) only then it starts using Latex

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Jason Moore
As far as I know it is moorepa...@gmail.com on both accounts. I'm not sure why mine is messed up. For example on google code: https://code.google.com/p/sympy/issues/detail?id=2781q=mechanicscolspec=ID%20Type%20Status%20Priority%20Milestone%20Reporter%20Summary%20Stars Jason moorepants.info

Re: [sympy] init_printing() in IPython Notebook should do use_latex=True

2014-03-04 Thread Jason Moore
I don't have this same issue. I use init_printing() and get LaTeX by default in IPython. Jason moorepants.info +01 530-601-9791 On Tue, Mar 4, 2014 at 4:08 PM, Ondřej Čertík ondrej.cer...@gmail.comwrote: Hi, It used to be the case, that I just did: init_printing() in IPython Notebook

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread Tim Lahey
I just double-checked and I have a comment on issue 1867, but no issues reported (or assigned). https://code.google.com/p/sympy/issues/detail?id=1867 My e-mail address is the same on both Google Code and on GitHub (tim.la...@gmail.com). Cheers, Tim. On 2014-03-04, at 4:12 PM, Jason Moore

Re: [sympy] init_printing() in IPython Notebook should do use_latex=True

2014-03-04 Thread Ondřej Čertík
Thanks for this. For me it sometimes works and sometimes it doesn't, and I haven't quite nailed it out yet, whether it depends on IPython version, or SymPy version or what. I use: IPython 1.1.0 SymPy 0.7.2 Ondrej On Tue, Mar 4, 2014 at 2:19 PM, Jason Moore moorepa...@gmail.com wrote:

Re: [sympy] Re: Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Christophe Bal
Sorry for my message, I was drunk... ;-) 2014-03-04 21:32 GMT+01:00 Akshay akshaynukal...@gmail.com: c=Line(Point(2,3), Point(3,5)) # Here the default value of z is taken as 0 I meant that the z co-ordinate of the point is taken as 0. -- You received this message because you are

Re: [sympy] Re: Issue migration from Google Code to GitHub

2014-03-04 Thread David Li
My email address is the same on Google Code and Github: li.david...@gmail.com David On Tuesday, March 4, 2014 1:20:32 PM UTC-7, Aaron Meurer wrote: My understanding was that it could be fixed after import if the user adds that email to their account. But let's just canonicalize those four

Re: [sympy] Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Chase Relock
This isn't my proposal, but I do think there is a lot that can be done here. There are a great deal of tools and results in Algebraic Geometry that can be implemented for 3d (and n-d of course). I recommend THIS

Re: [sympy] Gsoc-14 3-Dimensional Geometry.

2014-03-04 Thread Akshay
Thanks for the book , I'll surely go through it. -- 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 this group, send

Re: [sympy] Chase Relock - GSOC interest in Group Theory, ODEs, or possibly Statistical Finance

2014-03-04 Thread Matthew Rocklin
It's still a good idea to engage the list as you think about this. A good exercise is to mock up a little example a simple use of your proposed module. I'm not suggesting building it, I'm suggesting showing inputs and desired outputs. On Tue, Mar 4, 2014 at 2:12 PM, Chase Relock

Re: [sympy] Vedansh Garg| Interested in CSymPy projects Implementing more elementary functions and fast series expansion.

2014-03-04 Thread Vedansh Garg
Hi Ondrej, Greetings! I know C and Python and I have done some programming in c++ so learning that will not be a problem. I went through the code for taylor term, and I have gathered a basic knowledge about it's implementation. I like to know if there are any more points on which I should

Re: [sympy] Vedansh Garg| Interested in CSymPy projects Implementing more elementary functions and fast series expansion.

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 4:21 PM, Vedansh Garg vedanshkt@gmail.com wrote: Hi Ondrej, Greetings! I know C and Python and I have done some programming in c++ so learning that will not be a problem. I went through the code for taylor term, and I have gathered a basic knowledge about it's

Re: [sympy] Re: GSOC Project

2014-03-04 Thread someone
Hi, but can you give me some reference to this? I think I pointed you to some references in the last mail. Titles of some more or less important literature on the topic: Summation in Finite Terms Theory of Summation in Finite Terms Algebraic Extensions for Summation in Finite Terms A Refined

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Tim Lahey
Hi, Is there integers that Sympy can't represent? The Integer class is independent of python int. What would this module add to Sympy? Alternatively, should it be part of Numpy instead, if it's just numerics? I'm just a bit unclear on what you want to do. Cheers, Tim. On 4 Mar 2014, at

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 4:59 PM, Ambar Mehrotra ambar.pri...@gmail.com wrote: Hi, I am Ambar Mehrotra and undergraduate from BITS Pilani, India pursuing Information Systems. I like to play with numbers and have a descent experience with python. I would like to suggest the addition of a

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ambar Mehrotra
@Tim Even in python an integer is automatically converted to long type but it cannot go further. And as sympy has a numbers class for other data types as well this can also be included. Wanted to build something similar to this

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Tim Lahey
Hi, Sympy's Integer class is not the same as a python int. Is there something that the Integer class or gmpy through mpmath can't do? Cheers, Tim. On 4 Mar 2014, at 20:37, Ambar Mehrotra wrote: @Tim Even in python an integer is automatically converted to long type but it cannot go

Re: [sympy] init_printing() in IPython Notebook should do use_latex=True

2014-03-04 Thread Aaron Meurer
You should use SymPy 0.7.5. There were some issues with init_printing() in recent older versions, but they should have all been straightened out. Don't use 0.7.2. That was released in 2012! The priority for init_printing() with no arguments should be - MathJax LaTeX in the notebook - LaTeX

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ambar Mehrotra
@certik, I don't have the code with me now as this incident is more than an year old. I want to implement it in various other functions for huge calculations which are native to sympy and do not require any external libraries to be installed. Since sympy has a numbers class this could make for

[sympy] GSoC: Time to start working on your proposals

2014-03-04 Thread Aaron Meurer
We've received a lot of interest in GSoC this year, which is great. The student applications open on Monday, and close on the 21st. That's not much time, because you'll want to iterate your proposals based on our comments. So all interested students should start writing the applications on the

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ambar Mehrotra
@Tim, This link http://docs.sympy.org/latest/tutorial/manipulation.html says that SymPy's Integer class is similar to python's built-in int type. It just plays well with other sympy classes. Gmpy is currently not supported on google app engine so I presume it will have issues working with sympy

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Aaron Meurer
Well NumPy is an external library. SymPy numbers exist so that they play well with the rest of the SymPy objects, and also so that division results in rational numbers, which are not natively supported in Python. I'm not convinced that Python's native int/long is inefficient, and I'm *really*

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Tim Lahey
Hi, I just tried the following in Sympy Live, a = Integer(10e300) a*a

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ambar Mehrotra
@Tim, Well seems like the idea was a bugger :p On Wednesday, 5 March 2014 06:36:51 UTC+5:30, Tim Lahey wrote: Hi, Is there integers that Sympy can't represent? The Integer class is independent of python int. What would this module add to Sympy? Alternatively, should it be part of Numpy

Re: [sympy] init_printing() in IPython Notebook should do use_latex=True

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 6:47 PM, Aaron Meurer asmeu...@gmail.com wrote: You should use SymPy 0.7.5. There were some issues with init_printing() in recent older versions, but they should have all been straightened out. Don't use 0.7.2. That was released in 2012! That's right, I didn't realize

[sympy] GSoC 14: Tensor Core

2014-03-04 Thread Charlie Paul
Hello, I'm Charles Paul, a junior math, physics, and statistics student at UC Berkeley. I'm interested in doing the Tensor Core project for GSoC. As a math and physics student, I use a lot of linear algebra in most of my classes, and would find better support for them personally useful (I

[sympy] Ordinary Differential Equations

2014-03-04 Thread Rrubaa Panchendrarajan
*Hi, * *I am a Computer Science and Engineering undergraduate from University of Moratuwa. I have more than two years of experience in programming especially in Java and C. Also I have enough knowledge in python. I am very much interested in Mathematics, problem solving using programming and

Re: [sympy] GSoC 14: Tensor Core

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 6:53 PM, Charlie Paul charli...@gmail.com wrote: Hello, I'm Charles Paul, a junior math, physics, and statistics student at UC Berkeley. I'm interested in doing the Tensor Core project for GSoC. As a math and physics student, I use a lot of linear algebra in most of my

Re: [sympy] Ordinary Differential Equations

2014-03-04 Thread Ondřej Čertík
Hi Rrubaa, On Tue, Mar 4, 2014 at 6:20 PM, Rrubaa Panchendrarajan ruba...@cse.mrt.ac.lk wrote: Hi, I am a Computer Science and Engineering undergraduate from University of Moratuwa. I have more than two years of experience in programming especially in Java and C. Also I have enough knowledge

Re: [sympy] Addition of 'BigInteger' to Numbers

2014-03-04 Thread Ondřej Čertík
On Tue, Mar 4, 2014 at 6:37 PM, Ambar Mehrotra ambar.pri...@gmail.com wrote: @Tim Even in python an integer is automatically converted to long type but it cannot go further. And as sympy has a numbers class for other data types as You might be misunderstanding how Python integers work. Your

Re: [sympy] Re: GSOC - Improving SymPyGamma

2014-03-04 Thread Ondřej Čertík
Hi Sahil, I think it is. Start writing it up on our wiki as Aaron just suggested today (see his email) and ping us once you have something. David Li is the expert here to consult. Ondrej On Sun, Mar 2, 2014 at 8:05 AM, SAHIL SHEKHAWAT sahilshekhawa...@gmail.com wrote: It is mentioned in the

Re: [sympy] Re: GSOC 2014 idea: Adding parsing functionality to Sympy Live

2014-03-04 Thread Ondřej Čertík
On Tue, Feb 25, 2014 at 7:51 PM, Aditya Shah adityasha...@gmail.com wrote: As you have stated previously, the framework need not detect the language that it is parsing from and the user provides input regarding that. Now, since this is a Mathematica string, we directly specify it to be so. In

Re: [sympy] Re: GSOC - Improving SymPyGamma

2014-03-04 Thread SAHIL SHEKHAWAT
Thanks David and Ondřej , i am starting writing my proposal... *thanks a lot* On Wednesday, March 5, 2014 9:54:16 AM UTC+5:30, Ondřej Čertík wrote: Hi Sahil, I think it is. Start writing it up on our wiki as Aaron just suggested today (see his email) and ping us once you have something.

Re: [sympy] GSoC, Work in Group Theory

2014-03-04 Thread Antonio González Fernández
The project in specific is the creation about make a group module in Sympy. The idea is a bit simple writting, but it will cost (more or less) coding: By the Cayley theorem, we know that every group of finite order is isomorphic to a subgroup of the Permutation group, which is a group

[sympy] Re: Ordinary Differential equations

2014-03-04 Thread Prakhash siva
Hi Ondrej, Currently I’m going through the algorithms available. but i have only a big picture related to the available things. I'm interested in developing algorithemic solutions to the ODE functions which are not already exist in the library. So can you guide me where I can start from.

Re: [sympy] Re: GSOC 2014 idea: Adding parsing functionality to Sympy Live

2014-03-04 Thread Aditya Shah
@Certik Thanks a lot for replying. Well, as to your first question, I intend to develop a framework that can generate a parser. What we have in mathematica.py is a parser. So I want to take that one step further and devise a standard mechanism by which any developer can extend the enormous

[sympy] Linear Algebra

2014-03-04 Thread Rrubaa Panchendrarajan
*Hi, * *I am a Computer Science and Engineering undergraduate from University of Moratuwa. I have more than two years of experience in programming especially in Java and C. Also I have enough knowledge in python. I am very much interested in Mathematics, problem solving using programming and

Re: [sympy] Re: GSOC 2014 idea: Adding parsing functionality to Sympy Live

2014-03-04 Thread Aditya Shah
I have developed a raw block diagram and an API to explain my concept. It goes as follows: Suppose, we want to write a parser for the MathML Language. We need to create 2 things: 1. A Spec File (this contains the mappings between MathML features and corresponding sympy features (although not