[sympy] providing a definition for a symbolic function

2017-03-18 Thread Daniel Mahler
I believe i recently saw in the sympy documentation a function to set the definition of a symbolic function. Something like var('n') F = Function('F') the_function_I cant_remember(F, lambda x: x + 1) z = F(3*n) # ==> 3*n+1 I thought the function was called something like `bind_funct

[sympy] GSOC : Ordinary Differential Equations

2017-03-18 Thread Priyank Patel
Hi, My name is Priyank Patel, I am a 2nd year undergrad majoring in Computer Science. I went through the ideas page for the GSOC, and was particularly interested in the ode module. I have contributed to the sympy in the past, and currently I am working on the open issues related to ode module.

Re: [sympy] GSOC 2017:Code Generation

2017-03-18 Thread satya prakash
Thanks, Aaron; as you have said I have started working on the issues but some of them are labeled as an enhancement, I am interested in working on those. Can I give them as my gsoc proposal? On Friday, March 17, 2017 at 2:24:23 AM UTC+5:30, Aaron Meurer wrote: > > A good place to

Re: [sympy] GSOC 2017 idea: geometry

2017-03-18 Thread Alan Bromborsky
You might find the following github project built upon sympy of interest - https://github.com/brombo/galgebra and https://en.wikipedia.org/wiki/Conformal_geometric_algebra In conformal geometric algebra rotations, general rotation (about any point) translations, screws, inversions, and dilation

Re: [sympy] Re: GSoC Idea: Rubi integrator

2017-03-18 Thread Abdullah Javed Nesar
Hi Aaron, I find srepr in SymPy a powerful tool and can be applied in many ways to compare and traverse expressions and subexpressions in a tree. >>> x = Symbol('x') >>> a = Symbol('a') >>> b = Symbol('b') >>> m = Symbol('m') >>> expr = (a + b*x)**m >>> srepr(expr) "Pow(Add(Symbol('a'), Mul(

Re: [sympy] GSoC idea: robust cse

2017-03-18 Thread Aaron Meurer
CSE is usually tied to code generation. If you wanted to make a project about code generation there are plenty of things that could be done to fill a summer. Aaron Meurer On Sat, Mar 18, 2017 at 12:16 PM Arif Ahmed wrote: > I have carefully gone through the paper, and have completed a good part

[sympy] GSOC 2017 idea: non-rigid body

2017-03-18 Thread Tatyana Abramova
Hello, we are Tatyana Abramova, first-year student of The Department of General and Applied Physics of MIPT, and Robert Drynkin, first-year student of Applied Mathematics and Computer Science in HSE and Mathematics in IUM. We have found that there is no model for non-rigid bodies and we are going

[sympy] GSOC 2017:Ordinary Differential Equations

2017-03-18 Thread Priyank Patel
Hi, My name is Priyank Patel, I am a 2nd year undergrad majoring in Computer Science. I went through the ideas page for the GSOC, and was particularly interested in the ode module. I have contributed to the sympy in the past, and currently I am working on the open issues related to ode module.

[sympy] GSOC 2017 idea: geometry

2017-03-18 Thread Дрынкин Роберт
Hello, My name is Robert Drynkin and I am first-year student of Applied Mathematics and Computer Science in HSE and Mathematics in IUM. I have never contributed to open source projects, but I was really exited by your project, and I want to use it and make it better. I have found that geometry

Re: [sympy] GSoC idea: robust cse

2017-03-18 Thread Arif Ahmed
I have carefully gone through the paper, and have completed a good part of my rough proposal, but I have one major concern. A robust CSE is no doubt important but would it be enough work to qualify as a GSoC project (usually 11 - 13 weeks long)? If there are other stuff in SymPy which uses CSE o

[sympy] GSOC 2017 : Improvements in Limits and Series Expansion

2017-03-18 Thread shikharmakh1998
Hey, I am Shikhar(@Shikhar1998) and I interested in participating in GSOC 2017 with sympy. I went through the Ideas Page and found the `Series Expansion` module quite interesting. Below is a rough list I charted based on what I perceived on exploring the Series module and related PR's. Seri