[sympy] Fractions of sympy.Product of sympy.tensor.Indexed variables seem to not cancel correctly.

2016-02-09 Thread Jonathan Crall
I'm having an issue where an expresion with sympy.tensor.Indexed variables does not seem to simplify correctly. It is likely that I'm just doing something incorrect, so I was wondering if anyone could help me figure this out. I'm using sympy to just generate some simple equations based on

Re: [sympy] GSoC 16 : Ordinary Differential Equations

2016-02-09 Thread Aaron Meurer
Your best bet is to read through the references on the ideas page. I'm not an expert on these methods so others will probably be able to answer your question better. Aaron Meurer On Tue, Feb 9, 2016 at 1:57 PM, shubham tibra wrote: > Aaron, Which Mathematical topics are

Re: [sympy] GSoc'16 Solver and Solveset

2016-02-09 Thread Shekhar Prasad Rajak
Thanks a lot Aaron for sharing the above link, it contain a lot of information.It took me long time to go through the attached PR,Issues, and discussions. Right now I come across the solution that can solve the trigonometric equation g = 0 where g is a trigonometric polynomial. We can convert

[sympy] GSoC 16 : Ordinary Differential Equations

2016-02-09 Thread shubham tibra
Hi everyone, I am Shubham Tibra, and I will be applying for GSoC this year. I went through GSoC'16 ideas page and found this interesting https://github.com/sympy/sympy/wiki/GSoC-2016-Ideas#ordinary-differential-equations , Currently, Sympy supports many basic types of Differential Equations,

Re: [sympy] Re: Who can mentor for GSoC?

2016-02-09 Thread Ondřej Čertík
Thanks everybody who replied so far! Sudhansu and Abinash, can you add your name to the wiki please? https://github.com/sympy/sympy/wiki/GSoC-2016-Ideas#potential-mentors Thanks, Ondrej On Tue, Feb 9, 2016 at 7:11 AM, Abinash Meher wrote: > Hi, > > I am willing to

[sympy] Re: Who can mentor for GSoC?

2016-02-09 Thread AMiT Kumar
Hi! I am willing to participate as a mentor. Regards, AMiT Kumar On Tuesday, February 9, 2016 at 2:29:41 AM UTC+5:30, Aaron Meurer wrote: > > GSoC organization applications are now open. We can apply as an org, but > before we do, I want to know how many people we have who can mentor. If you

Re: [sympy] Re: Who can mentor for GSoC?

2016-02-09 Thread Isuru Fernando
Hi, I'm willing to mentor a SymEngine project. Isuru Fernando On Tue, Feb 9, 2016 at 5:28 PM, AMiT Kumar wrote: > Hi! > I am willing to participate as a mentor. > > > Regards, > AMiT Kumar > > On Tuesday, February 9, 2016 at 2:29:41 AM UTC+5:30, Aaron Meurer wrote: >> >>

Re: [sympy] Re: Who can mentor for GSoC?

2016-02-09 Thread Sudhanshu Mishra
Hi, I am willing to participate as a supporting mentor. Modules - Assumption, logic Sudhanshu Mishra On Feb 9, 2016 5:59 PM, "Isuru Fernando" wrote: > Hi, > > I'm willing to mentor a SymEngine project. > > Isuru Fernando > > On Tue, Feb 9, 2016 at 5:28 PM, AMiT Kumar

Re: [sympy] GSOC 2016: Implementation of vector integration

2016-02-09 Thread meghana . madhyastha
Thank you Aaron for the info. So should I discuss the todos for the vector module somewhere else (like the PyDy mailing list) or should this be discussed here itself ? Jason Moore is in charge of the vector module right ? -Meghana On Tuesday, February 9, 2016 at 10:05:15 PM UTC+5:30, Aaron

Re: [sympy] GSoC 16 : Ordinary Differential Equations

2016-02-09 Thread Aaron Meurer
You should familiarize yourself with the current ODE module, as well as with the details of those methods. The lie group method will probably require some significant work. A good place to start is to look at the bugs in the issue tracker for the ODE module, and see if you can fix some of them.

Re: [sympy] GSOC 2016: Implementation of vector integration

2016-02-09 Thread Aaron Meurer
On Mon, Feb 8, 2016 at 11:08 PM, wrote: > Hi everyone, > I'm Meghana Madhyastha, and I will be applying for GSOC this year. Sympy > currently has a good vector module, but it has a few missing > functionalities in vector calculus. I took a look at the ideas page and

Re: [sympy] Fractions of sympy.Product of sympy.tensor.Indexed variables seem to not cancel correctly.

2016-02-09 Thread Aaron Meurer
Support for Product in SymPy isn't as great as it could be. simplify() doesn't know how to combine two products that are multiplied or divided by each other. It looks like it works for Sum, so the first step would be to see how it works there and then see if a similar thing can be done for

Re: [sympy] GSoC 16 : Ordinary Differential Equations

2016-02-09 Thread shubham tibra
Aaron, Which Mathematical topics are the prerequisites? I am thinking about going through them first. On Tuesday, February 9, 2016 at 10:00:51 PM UTC+5:30, Aaron Meurer wrote: > > You should familiarize yourself with the current ODE module, as well as > with the details of those methods. The

Re: [sympy] Integral(v,t).doit() differs from integrate(v,t)

2016-02-09 Thread Aaron Meurer
That's definitely a bug. The two should always give the same answer. Can you open an issue for it? Aaron Meurer On Mon, Feb 8, 2016 at 11:37 AM, hercidav wrote: > Hi, > > I want to lambdify an integral including vector (sympy.Matrix) and I am > expecting to get a vector as

[sympy] Re: Who can mentor for GSoC?

2016-02-09 Thread Shivam Vats
I would like to mentor for SymEngine and SymPy too, preferably with another mentor. Module - Series Expansions. On Tuesday, 9 February 2016 03:23:55 UTC+5:30, Ondřej Čertík wrote: > > On Mon, Feb 8, 2016 at 1:59 PM, Aaron Meurer > wrote: > > GSoC organization applications

[sympy] Collect not working as desired

2016-02-09 Thread Alexander Lindsay
Hi all, I am making my first in-depth foray into sympy (and also my first in-depth foray into using winpdb). I am trying to collect terms that have R in expression. Hopefully the pasted screen shot gives an idea of what the expression looks like. As hopefully you can see, the expression inside

[sympy] GSOC 2016: Implementation of multiple types of coordinate systems

2016-02-09 Thread Nitin Chaudhary
Hii, I am Nitin Chaudhary , and I will be applying to GSOC 2016. As I went through your GSOC16’s idea page, I found this https://github.com/sympy/sympy/wiki/GSoC-2016-Ideas#implementation-of-multiple-types-of-coordinate-systems pretty interesting. I have already read the whole document