Re: [sympy] Re: GSoC

Bavish, You can start here: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Fri, Feb 16, 2018 at 9:37 AM, Bavish Kulur wrote: > Hello, > > I'm a first year undergrad at IIT Bombay, India. > I would like to

Re: [sympy] GSOC 2018 project discussion: Ordinary differential equation

Vishal, I recommend viewing all the issues related to the ODEs and to try solving incrementally harder problems with the current module. You will likely find ideas for improvement while doing those two tasks. Jason moorepants.info +01 530-601-9791 On Fri, Feb 16, 2018 at 9:17 PM, Vishal Gupta

Re: [sympy] GSoC 2018: Implementation of Vector Integration: Introducing Myself

Shrinath, You should get familiar with the sympy.vector package and try to solve some integral problems with the existing tools. You will likely find limitations and ideas to improve. Jason moorepants.info +01 530-601-9791 On Sat, Feb 17, 2018 at 12:48 AM, Shrinath Bhosale <

Re: [sympy] Gsoc idea

Umarpreet, It is relevant, but it may be best to focus on higher priority items on SymPy's roadmap. Jason moorepants.info +01 530-601-9791 On Sat, Feb 17, 2018 at 1:46 AM, Umarpreet Singh wrote: > Hello, > I am student currently studying Software Engineering. I want

Re: [sympy] GSOC 2018 Introduction : Project on adding features in Stats Module

Abhishek, You can start with this document: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sat, Feb 17, 2018 at 11:28 PM, Abhishek Kumar wrote: > I am Abhishek Kumar final year Computer Science undergraduate

Re: [sympy] Doubt.

Amisha, You can start with this document to get familiar: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sun, Feb 18, 2018 at 2:17 AM, Amisha Rawat wrote: > I am unable to understand some of the issues in

Re: [sympy] Any interest for SciPy 2018 talks and tutorials?

-Proposal:-Code- Generation-with-SymPy Jason moorepants.info +01 530-601-9791 On Wed, Feb 7, 2018 at 8:52 AM, Jason Moore <moorepa...@gmail.com> wrote: > Here is the new proposal: https://github.com/sympy/sympy/wiki/SciPy-2018- > Tutorial-Proposal:-Code-Generation-with-SymPy > >

Re: [sympy] Introduction + interest in implementing Singularity Functions module

< anmolkrishansachd...@gmail.com> wrote: > Hi Jason, > > I have gone through the description of Continum Mechanics module. > Shall I start by building the 2016 project? > Kindly guide on how to proceed. > I am interested in doing this one. > > Regards > Anmol Krishan Sachdeva &

Re: [sympy] GSoC

Congrats on getting accepted! moorepants.info +01 530-601-9791 On Mon, Feb 12, 2018 at 11:10 AM, Aaron Meurer wrote: > SymPy has been accepted into GSoC again. > > All students interested in applying, please start here >

Re: [sympy] Introduction + interest in implementing Singularity Functions module

This module has already been implemented. The next step is improving the continuum mechanics module. moorepants.info +01 530-601-9791 On Sun, Feb 11, 2018 at 4:56 PM, wrote: > Hello, > > My name is Anmol Krishan Sachdeva. I am currently pursuing MSc in Advanced

Re: [sympy] GSoC Org application

ngularity > functions idea is still there. Should it be removed? > > Aaron Meurer > > On Wed, Feb 7, 2018 at 3:56 PM, Jason Moore <moorepa...@gmail.com> wrote: > > Cool. I added my name as a possible mentor (late) and updated some > physics > > ideas. I wasn't able

Re: [sympy] GSoC Org application

Meurer <asmeu...@gmail.com> wrote: > Yes. Google announces organizations on the 12th. > > Aaron Meurer. > > On Wed, Feb 7, 2018 at 12:22 PM Jason Moore <moorepa...@gmail.com> wrote: > >> Did this application get submitted? >> >> moorepants.info >>

Re: [sympy] GSoC Org application

Did this application get submitted? moorepants.info +01 530-601-9791 On Sun, Jan 7, 2018 at 8:02 PM, Aaron Meurer wrote: > The GSoC org application period has started. The deadline is January 23rd. > > Potential mentors, please add your name and email to this list >

Re: [sympy] Any interest for SciPy 2018 talks and tutorials?

ur profile to the proposal. If accepted we edit the materials to improve and present. We can these details later. Jason moorepants.info +01 530-601-9791 On Wed, Feb 7, 2018 at 8:41 AM, Jason Moore <moorepa...@gmail.com> wrote: > I haven't found the sticky notes. I say that we edit l

Re: [sympy] GSoC 2018 Project - Autolev Parser (using ANTLR 4)

Yes, it is still useful. Jason moorepants.info +01 530-601-9791 On Mon, Jan 29, 2018 at 3:43 PM, Ondřej Čertík wrote: > > > On Fri, Jan 26, 2018, at 6:41 AM, Nikhil Pappu wrote: > > Hi, > > > > I am a sophomore in Computer Science and Engineering at the International > >

Re: [sympy] Any interest for SciPy 2018 talks and tutorials?

ere any good suggestions there (did you photograph the sticky > notes?). > > Aaron Meurer > > On Wed, Jan 24, 2018 at 6:22 PM, Jason Moore <moorepa...@gmail.com> wrote: > > Main adjustment I'd make is to remove material. I think we just had a bit > > too much and had to

Re: [sympy] Any interest for SciPy 2018 talks and tutorials?

t; > Aaron Meurer > > On Wed, Jan 24, 2018 at 6:04 PM, Jason Moore <moorepa...@gmail.com> wrote: > > Aaron, > > > > I wouldn't mind doing th codegen again. It was a nice new fresh thing to > > talk about and I think the interest will grow. But would be fine

Re: [sympy] Any interest for SciPy 2018 talks and tutorials?

:38 AM, Aaron Meurer <asmeu...@gmail.com> wrote: > I might be interested in helping with a tutorial. Which tutorial do > you think we should submit? > > Aaron Meurer > > On Wed, Jan 24, 2018 at 1:26 PM, Jason Moore <moorepa...@gmail.com> wrote: > > Howdy, > &g

[sympy] Any interest for SciPy 2018 talks and tutorials?

Howdy, The SciPy submission is due Feb 9th (much earlier this year). We have several tutorials that are already developed: intro to sympy, automatic code generation, and pydy. Is anyone interested in submitting this year? I have interest. They pay something like $1k for each tutorial. The new

Re: [sympy] guidance for contributing in sympy

Mann, Start by reading this: https://github.com/sympy/sympy/wiki/introduction-to-contributing and following the instructions. Ask specific questions here if you have trouble. Jason moorepants.info +01 530-601-9791 On Sat, Dec 30, 2017 at 10:40 AM, wrote: > Hello, > My

Re: [sympy] Introducing myself to the community

TIA, Welcome, please read through https://github.com/sympy/sympy/wiki/Introduction-to-contributing to get started. After reading, please send a more informative introductory email, as described in the wiki page. Jason moorepants.info +01 530-601-9791 On Sun, Dec 17, 2017 at 1:22 AM, Tanay

Re: [sympy] collecting suggestions for a format for "introducing myself"

I just added this: https://github.com/sympy/sympy/wiki/Introduction-to-contributing#join-our-mailing-list-and-introduce-yourself moorepants.info +01 530-601-9791 On Sun, Dec 17, 2017 at 11:40 AM, Jason Moore <moorepa...@gmail.com> wrote: > Good idea. Maybe we should add these ins

Re: [sympy] collecting suggestions for a format for "introducing myself"

Good idea. Maybe we should add these instructions to: https://github.com/sympy/sympy/wiki/introduction-to-contributing and whatever page the GSoC students might likely first land on. Jason moorepants.info +01 530-601-9791 On Sun, Dec 17, 2017 at 9:23 AM, Richard Fateman

Re: [sympy] Introducing myself to the Sympy Community

Welcome, here is our introduction guide: https://github.com/sympy/sympy/wiki/introduction-to-contributing Read through it and start getting familiar with the software. Let us know if you have questions. moorepants.info +01 530-601-9791 On Thu, Dec 14, 2017 at 3:53 AM,

Re: [sympy] mechanics - 3 member linkage with linear actuator, no connecting path found

You will need to define an equation that defines the kinematic loop constraint (holonomic constraint). This will look like 0 = f(coordinates, lengths). If you can then solve this equation for the dependent coordinate, then you can construct all of your position vectors in terms of only the

Re: [sympy] Did any sympy members get invited to the NumFocus summit?

Great. Thanks for representing us and glad they invited one of us. Jason moorepants.info +01 530-601-9791 On Mon, Oct 9, 2017 at 12:37 PM, Aaron Meurer <asmeu...@gmail.com> wrote: > Yep I'll be there. > > Aaron Meurer > > On Mon, Oct 9, 2017 at 3:15 PM Jason Moore <moo

[sympy] Did any sympy members get invited to the NumFocus summit?

https://www.numfocus.org/blog/spotlight-on-sustainability-at-the-2017-numfocus-summit/ Just curious if we have representation. Jason moorepants.info +01 530-601-9791 -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and

Re: [sympy] Re: strange issue with latex printing

If you print dp0 you'll see that it doesn't properly render. Maybe it is invalid LaTeX. moorepants.info +01 530-601-9791 On Sun, Oct 8, 2017 at 8:38 AM, Jason Moore <moorepa...@gmail.com> wrote: > I'm not able to get rendered LaTeX output in the qtconsole 4.3.1 at all. > > moorep

Re: [sympy] Re: strange issue with latex printing

I'm not able to get rendered LaTeX output in the qtconsole 4.3.1 at all. moorepants.info +01 530-601-9791 On Sun, Oct 8, 2017 at 8:03 AM, Amine Aboufirass wrote: > Does anyone know why this is happening... > > On Saturday, October 7, 2017 at 2:50:58 PM UTC+2, Amine

Re: [sympy] Dealing with vectors (fields in particular)

Cavendish, 3 is definitely what you should use. 2 isn't made for your use case. There was work on 3 this summer. Look for the pull requests with relevant topics. I'm not sure all has been merged yet. Feel free to help with any of the printing or other bugs. I opened an issue for the bug in 2

Re: [sympy] Symbolic 3d Points

MPz * Chassis_frame.z)) NameError: name 'ChassisC' is not defined moorepants.info +01 530-601-9791 On Mon, Jul 17, 2017 at 4:53 PM, Jason Moore <moorepa...@gmail.com> wrote: > One issue you may be having is the mixture of sympy.vector, > sympy.physics.vector, and sympy.geometry.

Re: [sympy] Symbolic 3d Points

One issue you may be having is the mixture of sympy.vector, sympy.physics.vector, and sympy.geometry. These packages are not designed to work with each other currently. I recommend sticking to one of those depending on what you are trying to do. moorepants.info +01 530-601-9791 On Mon, Jul 17,

Re: [sympy] Numpy array to C++

You would probably have better luck asking this question on the NumPy mailing list. moorepants.info +01 530-601-9791 On Tue, Jul 11, 2017 at 9:47 PM, wrote: > Hi, > > I am trying to convert Numpy array to C++ data structure. Does anyone know > how to do that

[sympy] Re: plotting the batman equations, need help

I figured out a workaround using carefully crafted Piecewise functions. But I did open this issue: https://github.com/sympy/sympy/issues/12804 because I think it should just work (it mostly does). moorepants.info +01 530-601-9791 On Sat, Jun 24, 2017 at 2:24 PM, Jason Moore <moor

[sympy] plotting the batman equations, need help

I've been trying to put together a demo showing how sympy's jscode generator could be used to plot functions using Chart.js in the Jupyter notebook. I decided to try plotting the Batman equations and it almost works. The sympy.plot function gets most of it but seems to have issues with the head.

Re: [sympy] Updating SymPy changelog process

I fully support this! moorepants.info +01 530-601-9791 On Thu, Jun 22, 2017 at 1:17 PM, Aaron Meurer wrote: > Once I have finished the SymPy release, I would like to make an update > to how we do changelogs. > > Right now, changelog entries are made manually on the wiki, at

[sympy] Re: Request for community input: removing versioned docs

It seems that many other scipy related packages handle this by giving big warnings at the top of old doc pages to manually redirect you. This seems to work for me the vast majority of the time, only occasionaly to I get stuck on old, for example. Readthedocs does this for your automatically too

Re: [sympy] how to convert latex expression into sympy expression?

Here is one option: https://github.com/augustt198/latex2sympy moorepants.info +01 530-601-9791 On Wed, Jun 14, 2017 at 12:22 AM, Christophe BAL (via GMAIL) < projet...@gmail.com> wrote: > Hello. > > Because LaTeX is not mathmetically semantic, you can't have a perfect > converter from LaTeX to

Re: [sympy] INTRODUCTION.

Welcome Ayush, A good place to start is this guide: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sun, Jun 4, 2017 at 6:43 AM, Ayush Shridhar wrote: > > Hello

Re: [sympy] GSoC : Singularity Function

I recommend trying to solve beam bending or other problems that utilize singularity functions with the current module. You will quickly find many deficiencies and ideas for new features. Jason moorepants.info +01 530-601-9791 On Fri, Mar 31, 2017 at 2:16 PM, satya prakash

Re: [sympy] GSoC idea: Rewriting the Matrices module to make matrices in Sympy faster and more usable.

You should connect with Jason Siefkin who is currently in the midst of rewriting and organization the matrix code. Jason moorepants.info +01 530-601-9791 <(530)%20601-9791> On Wed, Mar 29, 2017 at 8:27 AM, Vedarth Sharma wrote: > I saw it as an idea prompt in Sympy

Re: [sympy] GSoC 2017 Physics Projects

Aaron, Both Jain and Featherstone each have a book about this subject. Last year's GSoC student worked on the Featherstone implementation. There is still an open pull request with this. I would start by reviewing what Brandon (James) did last year and figure out what it will take to finish it.

Re: [sympy] GSOC 2017 idea: non-rigid body

Tatyana, There are projects that have enough work to share between two proposals. That would be ok. But all of the proposals should be primarily focused on developing software for SymPy. Each proposal should be focused on the software additions and changes that the student will work on during the

Re: [sympy] Modelling and finite element analysis

Tedongmo, Welcome to the SymPy community. I suggest asking questions on the mailing list if you are hoping for a response. If you are interested in GSoC, be sure to let us know. Jason moorepants.info +01 530-601-9791 On Mon, Mar 27, 2017 at 1:05 PM, Tedongmo wrote: > Hi

Re: [sympy] Feedback on GSoC Proposal

Mikayla, Have a look at this proposal from last year: https://github.com/sympy/sympy/wiki/GSoC-2016-Application-Sampad-Kumar-Saha:-Singularity-Functions It is a very well designed proposal. Compare yours to it and I think you'll see a number of improvements you can make. I also agree with

Re: [sympy] GSoC: Assumptions Project

Yash, You should search the mailing list for past conversations, look at our Github wiki for previous proposals on this system, search pull requests related to assumptions, and reach out to the people that have worked on this system to learn what is needed. Also start here for getting setup:

Re: [sympy] Re: GSoC 2017: Lie groups in SymPy

Maria, If your proposal is good we will find a mentor. Just focus on making the proposal strong. Jason moorepants.info +01 530-601-9791 On Sat, Mar 25, 2017 at 7:07 AM, Kalevi Suominen wrote: > There is a module on complex Lie algebras in SymPy that also deals with > Dynkin

Re: [sympy] Gsoc 2017: Series expansions

Here is the documentation: http://docs.sympy.org/latest/modules/series/series.html Best to get familiar with what currently exists so you can propose new ideas. Jason moorepants.info +01 530-601-9791 On Sun, Mar 26, 2017 at 4:20 AM, Vikas Kurapati wrote: > Hi

Re: [sympy] GSOC 2017: Integration

Here is a good place to start reading and asking questions: https://github.com/sympy/sympy/issues/7749 Jason moorepants.info +01 530-601-9791 On Sun, Mar 26, 2017 at 3:58 AM, Suraj Sanka wrote: > Hi everyone, > > I am Suraj Sanka, senior undergrad at Indian Institute of

Re: [sympy] Is work done on Singularity functions already?

There is plenty to do with this project. I suggest trying to solve problem with the current implementation and see what does and doesn't work well. Jason moorepants.info +01 530-601-9791 On Sun, Mar 26, 2017 at 11:29 AM, Sagar Bharadwaj < sagarbharadwa...@gmail.com> wrote: > I am interested in

Re: [sympy] SymPy Tutorial Proposal: SciPy 2017

The tutorial we submitted is here: https://github.com/sympy/sympy/wiki/SciPy-2017-Tutorial-Proposal:-Automatic-Code-Generation-with-SymPy Jason moorepants.info +01 530-601-9791 On Sat, Mar 25, 2017 at 2:29 PM, Jason Moore <moorepa...@gmail.com> wrote: > FYi, Aaron and I are s

Re: [sympy] Python magic to trigger post-constructors for Add, Mul, Pow?

:21 AM, Francesco Bonazzi <franz.bona...@gmail.com> wrote: > > > On Sunday, 26 March 2017 00:48:13 UTC+1, Jason Moore wrote: >> >> Would multiple dispatch be best for implementing Add/Mul/Etc for these >> different types? >> > > I think this alternative would work

Re: [sympy] Gsoc:Concrete Module

Start by going through this: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sun, Mar 26, 2017 at 6:31 AM, wrote: > Can anyone tell me how can i start developing the Concrete Module.Thanks. > > -- > You received

Re: [sympy] Improving Sympy Gamma

Jai, The SymPy gamma files are here: https://github.com/sympy/sympy_gamma Jason moorepants.info +01 530-601-9791 On Tue, Mar 21, 2017 at 2:40 PM, Jai Mahajan wrote: > Hi > > I would like to improve the AI of Sympy gamma if there is any to make it > almost as good as or

Re: [sympy] Python magic to trigger post-constructors for Add, Mul, Pow?

Would multiple dispatch be best for implementing Add/Mul/Etc for these different types? Jason moorepants.info +01 530-601-9791 On Thu, Mar 23, 2017 at 10:45 AM, Aaron Meurer wrote: > An expression like x*A + B would be problematic, but 2*A + B should > actually be fine,

Re: [sympy] Trying to solve relational, compound equation inequality. e.g -3 < 2x+1 < 5

You need to pass in two separate equations instead of the expression. Jason moorepants.info +01 530-601-9791 On Thu, Mar 23, 2017 at 11:44 PM, wrote: > I am following the steps: > > 1. import sympy as sy > 2. x = sy.symbols('x', real=True) > > Now, print(sy.solve(2*x +

Re: [sympy] GSOC 2017 idea: non-rigid body

This sounds great. The devils in the details though. We'd love to see more fleshed out ideas. You can propose them here or on the wiki or through pull requests. This is a good idea for a GSoC project too. Jason moorepants.info +01 530-601-9791 On Sat, Mar 18, 2017 at 3:35 AM, Tatyana Abramova

Re: [sympy] providing a definition for a symbolic function

Is it here: http://docs.sympy.org/latest/modules/functions/index.html Jason moorepants.info +01 530-601-9791 On Sat, Mar 18, 2017 at 11:48 PM, Daniel Mahler wrote: > I believe i recently saw in the sympy documentation a function to set the > definition of a symbolic

Re: [sympy]

I would suggest trying to use the mechanics module first. Pick your favorite dynamics problem and make an example. You can submit these examples to the PyDy repository. Secondly, look for issues labeled with mechanics on the sympy issue tracker and give a shot at fixing one. Jason

Re: [sympy] Re: Lots of problems with Stats module

It would be great if each of these could be opened as an issue on the Github repo. It allows us to better organize and track these. Also, feel free to create and idea on the GSoC wiki ideas page so that applicants will notice this. Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at

Re: [sympy] Improving codegen(and related stuff)

Arif, Search the open issues for a variety of keywords that you've listed above and check out the wiki for more codegen needs. There is plenty to do! Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at 5:28 AM, Arif Ahmed wrote: > Hi, > I am

Re: [sympy] Re: Getting Started with Contributing/Patching

Excellent answer! Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at 7:44 AM, Valeriia Gladkova < valeriia.gladk...@gmail.com> wrote: > While a lot of issues have people who start working on them, not all of > them would be able to finish work. If you find an issue where there's

Re: [sympy] Re: GSoC 2017: Group Theory

Valerilia, It looks like you have the basics covered in your proposal, but it would be good to find someone that is familiar with group theory to comment more. Maybe you can see what features are available in group theory in other mathematic software and then show how you can implement these

Re: [sympy] GSOC 2017 : Singularity Functions

Madhur, I'd suggest trying to solve beam bending problems from a structural mechanics textbook with the current code. You will find many limitations and bugs. Those can then be outlined in a GSoC proposal. Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at 9:11 AM,

Re: [sympy] GSOC Project 2017: Solvers

Ekansh, I think the methods you mention are numerical in nature. Unless they can be used with symbols you'll need to look into other methods. Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at 11:18 AM, Ekansh Purohit wrote: > Hi, > > I am Ekansh Purohit, a

Re: [sympy] Need help in getting started

Look for issues on our Github repo labeled "Easy to fix". Jason moorepants.info +01 530-601-9791 On Mon, Mar 20, 2017 at 1:04 PM, Rajat Sharma wrote: > Hey guys, > > I'm new here and have got SymPy set up. I'm looking for a small task or > bug that I could work on

Re: [sympy] Re: GSOC IDEA: Fourier Optics

Ankur, You should draft up your ideas on the SymPy Github Wiki and ask more detailed questions here. There may or may not be someone familiar with these methods to help you though. Jason moorepants.info +01 530-601-9791 On Tue, Mar 21, 2017 at 10:17 AM, ankur maheshwari

Re: [sympy] solve() bug or working as intended

Looks like a bug, please submit and issue on Github. Thanks, Jason moorepants.info +01 530-601-9791 On Tue, Mar 21, 2017 at 11:33 AM, Chris L wrote: > The following input: > > solve ([a -b -c ,-b -c ],[a],Dict =true ) > > should evaluate to (Wolfram evaluates this

Re: [sympy] Modifications to qubit simulation code

Rick, Go for it. Noone has touched that code in years. Jason moorepants.info +01 530-601-9791 On Tue, Mar 21, 2017 at 12:31 PM, Rick Muller wrote: > I was planning to jump into the Sympy quantum stuff a bit more, and wanted > to make sure I wouldn’t be stepping on

Re: [sympy] Contributing to Sympy Gamma

Jai, The sympy gamma code can be found in this repo: https://github.com/sympy/sympy_gamma Jason moorepants.info +01 530-601-9791 On Tue, Mar 21, 2017 at 2:54 PM, Jai Mahajan wrote: > Hi > > I would like to work on the UI of Sympy gamma by editing / creating AI > files

Re: [sympy] SymPy Tutorial Proposal: SciPy 2017

initely submit it. I think we can >> > submit more than one tutorial (looking at the SciPy website it seems), >> let >> > me know if anybody is interested in that. >> > >> > >> > On Wednesday 15 March 2017 02:16 AM, Sartaj Singh wrote: >> > >> > To a

Re: [sympy] SymPy Tutorial Proposal: SciPy 2017

I vaguely remember this. I'm not sure if I suggested it or if someone mentioned to me and I repeated it. But I bet a sympy code generation tutorial could be popular as an intermediate topic. I think that I recall some people telling me they'd have liked something deeper. Jason moorepants.info

Re: [sympy] Singularity Function Project Status

There is still a lot to do on this project but the work is primarily on developing the continuum mechanics module into a more usable and correctly functioning state. Jason moorepants.info +01 530-601-9791 On Fri, Feb 17, 2017 at 10:35 PM, Jarvis Luong <4109jarvis1...@gmail.com> wrote: > Hi

Re: [sympy] factoring matrix

If you take the Jacobian with respect to your b vector I think you should get A. Jason moorepants.info +01 530-601-9791 On Wed, Feb 15, 2017 at 1:17 PM, Sebastian Luque wrote: > Hello, > > I'm trying to work out the derivation of the relationship between Euler > angle rates

Re: [sympy] Re: Doing a release

SciPy does it too: https://github.com/scipy/scipy/tree/master/doc/release and the notes seem quite comprehensive and well organized. To avoid merge conflicts we could require a single file for each item in the notes to be added and then a script compiles the full note set from those. Jason

Re: [sympy] Bug Fix

Yathartha, Start by reading this document ( https://github.com/sympy/sympy/wiki/introduction-to-contributing) and setting up your development environment. Welcome! Jason Jason moorepants.info +01 530-601-9791 On Tue, Dec 27, 2016 at 10:19 AM, Yathartha Joshi wrote: >

Re: [sympy] Solving Linear Programming Problem in SymPy

Shekar, Here is an example that uses sympy to let a user specify linear program optimization problems symbolically and then it is solved numerically: https://github.com/biosustain/optlang Here is another package I wrote that does NLP for optimal control systems. https://github.com/csu-hmc/opty

Re: [sympy] Physics Module: Classical Mechanics: Two rigid bodies connected by a torsion spring with damping.

I opened this issue: https://github.com/sympy/sympy/issues/11967. Jason moorepants.info +01 530-601-9791 On Wed, Dec 21, 2016 at 2:06 PM, Jason Moore <moorepa...@gmail.com> wrote: > The API is not well designed for applying potential energy from springs. > As a workaround, yo

Re: [sympy] Physics Module: Classical Mechanics: Two rigid bodies connected by a torsion spring with damping.

The API is not well designed for applying potential energy from springs. As a workaround, you can define the entire system's potential energy and attach it to one of the bodies potential_energy attribute. The Lagrangian will be properly calculated. Make sure not to double count any of the

[sympy] UCD CS Senior Design Call for Proposals, Deadline Dec 1

Last year we had a student group from UCD implement series in SymEngine that was a positive experience for all involved. The call for proposals is open again this year and the deadline is Dec 1. I plan to submit a proposal again and maybe others would too. Keep in mind that this requires mentoring

[sympy] NumFOCUS Summit

I just noticed that there was a NumFOCUS summit: http://www.numfocus.org/blog/numfocus-summit-2016 Too bad we didn't have a rep there. We should keep an eye out for next time. Jason moorepants.info +01 530-601-9791 -- You received this message because you are subscribed to the Google Groups

Re: [sympy] Getting Started to contribute for GSoC 2017

The first thing you should do is to read this: https://github.com/sympy/sympy/wiki/introduction-to-contributing and follow the instructions to get familiar and setup your development environment. You can ask questions here on the mailing list. Jason moorepants.info +01 530-601-9791 On Tue, Oct

Re: [sympy] Joining the organisation

Start by reading this and following the instructions: https://github.com/sympy/sympy/wiki/introduction-to-contributing Ask here on the mailing list if you don't understand anything. Jason moorepants.info +01 530-601-9791 On Sat, Sep 24, 2016 at 6:47 AM, pratyush singh

Re: [sympy] QEPCAD

Ferran, Welcome to SymPy! I'll answer some of the questions that I know, other will chime in for the rest. > We have read that sympy supports python 2 and 3. How does this affect the development process? You should write your code for Python 3.5 and when you submit a pull request our continuous

Re: [sympy] How to start for gosc-2017 in Sympy

Start by reading this document and setting up your development environment: https://github.com/sympy/sympy/wiki/introduction-to-contributing Jason moorepants.info +01 530-601-9791 On Sat, Sep 10, 2016 at 11:12 AM, Animesh Anand < animesh.anand.cs...@itbhu.ac.in> wrote: > HiI am Animesh

[sympy] Re: autowrap vs codegen

Codegen generates the actual text for a variety of languages, i.e. you have to compile it in that language. Autowrap generates the code, wraps it for use in Python, and then imports the Python code. See: http://docs.sympy.org/latest/modules/codegen.html On Saturday, September 10, 2016 at

Re: [sympy] Idea for PR reviewing

I agree that closing is not a good idea. Jason moorepants.info +01 530-601-9791 On Thu, Sep 8, 2016 at 12:15 PM, Ondřej Čertík wrote: > On Thu, Sep 8, 2016 at 12:09 PM, Aaron Meurer wrote: > > I'm not a fan of that. Closing gives people the

Re: [sympy] You can now grant people access to push to your PRs

Awesome! A long needed feature. This can really help cut down on the time it takes to make small, minor, and inconsequential changes. And we no longer have to do pr's against other people's pr. This will really help the workflow. Jason moorepants.info +01 530-601-9791 On Wed, Sep 7, 2016 at

Re: [sympy] Re: 3D pendulum and equations of motion of multi-body systems (KanesMethod)

The system that you drew only has two degrees of freedom regardless of what forces you apply to the system. It also isn't clear as to whether you consider the mass a particle or a rigid body. The problem is very different depending on that. If you want a conical pendulum that has forces applied to

Re: [sympy] Re: 3D pendulum and equations of motion of multi-body systems (KanesMethod)

position and > orientation) those are the generalized coordinates used (Think for example > of a quadcopter model). > > Thanks, > Nuno > > > segunda-feira, 15 de Agosto de 2016 às 19:13:25 UTC+1, Jason Moore > escreveu: >> >> Nuno, >> >> You can on

Re: [sympy] Re: 3D pendulum and equations of motion of multi-body systems (KanesMethod)

Nuno, You can only select one set of independent generalized coordinates for things to work out. You seem to be setting two sets, both the cartesian and the angular coordinates. You may need to refer to a dynamics text to see how to go about selecting generalized coordinates. Jason

Re: [sympy] Re: 3D pendulum and equations of motion of multi-body systems (KanesMethod)

able_length*distance.normalize().to_matrix( > inertial_frame)[0], > y_m - cable_length*distance. > normalize().to_matrix(inertial_frame)[1], > z_m - cable_length*distance. > normalize().to_matrix(inertial_frame)[2] ] > > Thanks again, >

Re: [sympy] Re: 3D pendulum and equations of motion of multi-body systems (KanesMethod)

Nuno, If you re using KanesMethod it supports two types of constraints: holonomic and non-holonomic. You can supply these constraints to the initializer and then the equations of motion will be formed that take the nonholonomic constraints into account. Note that if you have holonomic kinematic

Re: [sympy] Jupyter notebook seems stuck at trigsymp()

Nuno, Simplification of very large expressions is typically not a good idea due to the time needed for computation. Unless you have a specific need to simplify the resulting equations, I'd avoid it. Jason moorepants.info +01 530-601-9791 On Tue, Aug 2, 2016 at 5:25 PM, Nuno

Re: [sympy] Re: Solving a system of polynomial equations

i disappears and the equations are linear. > > > On Tuesday, July 26, 2016 at 11:12:50 AM UTC-5, Jason Moore wrote: >> >> I have been working on a problem and end up needing to solve a system of >> nonlinear equations that are polynomials wrt to the variables of inter

[sympy] Solving a system of polynomial equations

I have been working on a problem and end up needing to solve a system of nonlinear equations that are polynomials wrt to the variables of interest. There are six equations and six unknowns and only two of the variables are related non-linearly. This is the basic form: [-c3 + 55.3719398861938],

Re: [sympy] Lagrange’s Method in Physics/Mechanics: Stiffness Matrix

Sven, A stiffness matrix is only relevant when you have a system that is described by linear differential equations. In the general, non-linear form of the equations of motion of a rigidbody system there is only one matrix that can be extracted, i.e. the matrix of coefficients for the

[sympy] Re: SymPy codegen SI2: SSI proposal

I'm not available to meet at that time. Please take some notes and I will review. Jason moorepants.info +01 530-601-9791 On Mon, Jul 18, 2016 at 3:54 PM, Aaron Meurer wrote: > Let's meet on Wednesday at 10 am PT (1 pm ET), via Google hangouts. I > know there are some

Re: [sympy] Google Scholar alerts for SymPy

I've also got a shared zotero group with these kinds of papers: https://www.zotero.org/groups/sympy Let me know if you want to be added to it. I've been trying to do light reviews of each in the notes to specify how each paper uses SymPy. I started this to help build a portion of the current

Re: [sympy] Beam bending Module

You can create a new branch and merge in 11237 and 11178, then start adding new commits. Once the two prereq branches are merged your new branch will merge cleanly into master. Jason moorepants.info +01 530-601-9791 On Thu, Jul 7, 2016 at 10:48 AM, SAMPAD SAHA wrote: >

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