[sympy] Interest in Series expansion & start tips

Hi, I am very enthusiastic about this idea in the list and would like to get to work on this project on some beginner task if possible. Is there any beginner task that I can start on and if there is any suggestion on how to proceed forward to a proposal? Regards Henry -- You received this mess

Re: [sympy] Why does sympy dsolve ignore initial conditions sometimes?

It is true that we need to disable returning series solutions by default. However, this solution is not a power series solution (if it were, it would contain an order term). The issue here is that the initial conditions solver in dsolve isn't handling the initial conditions correctly. I would sugg

[sympy] Re: Interested in Rule based symbolic integration project

some links https://github.com/sympy/sympy/issues/12233 Rubi in sympy integration tests Sympy 1.3 was used in this test for both Sympy itself and for Rubi in Sympy. 28,425. Completed December 16, 2018. Rubi in sympy used

Re: [sympy] Why does sympy dsolve ignore initial conditions sometimes?

"I would suggest opening an issue about this." I have github user name and pass word. but I can no longer login. After I enter these, it asks me to do some 2FA thing., I do not know how to use smart phone or apps. I only can use the mouse and keyboard. It wants to scan something on the scr

[sympy] Introduction and project proposal for GSoC

Hi everyone, My name is Álvaro Sánchez, and I am a Spanish physics student currently pursuing a master's degree in astrophysics. I recently discovered the Google Summer of Code and was thrilled to see that SymPy is participating in the program as I have used SymPy very often during my bachelor'

Re: [sympy] Query about the GSoC project Hypothesis testing of SymPy

What are the components that can benefit most out of hypothesis testing? I can try to implement them before I start writing a proposal it that's okay. On Tue, 4 Mar, 2025, 4:29 am Pradyot Ranjan, wrote: > Last year I worked as a GSoC student for PyBaMM. We had a stretch goal > regarding the impl

[sympy] Re: How to tell sympy dsolve not to solve the ode using series?

Fyi, there was a bug report on this same issue 6 years ago https://github.com/sympy/sympy/issues/15916 But it is still not fixed? I also tried dsolve(ode,func=y(x),ics=ics,series=False) And it still returned series solution. This is wrong. It should only return series solution when explici

[sympy] Why does sympy dsolve ignore initial conditions sometimes?

I noticed sometimes dsolve ignore IC give and gives general solution instead. This seems to happen when it is not able to resolve the constants of integrations. In this case it should return no solution instead. Is there a way to tell it not to do this? Here is an example >python Python 3.13.

Re: [sympy] Query about the GSoC project Hypothesis testing of SymPy

Pretty much any function in SymPy that can have mathematical properties written about it could potentially benefit from property testing. However, a big challenge with this project is the input data generation (the strategies in hypothesis terminology). Generating arbitrary SymPy expressions is a d

Re: [sympy] Interested in Benchmarks and Performance for GSoC

If you want to you can, although it isn't required. Aaron Meurer On Mon, Mar 3, 2025 at 8:40 PM PRAYAG V wrote: > > Before submitting the application to google.do I put my draft proposal > here.so you all can review and improve accordingly > > On Tuesday, February 18, 2025 at 12:28:39 AM UTC+5:

Re: [sympy] Why does sympy dsolve ignore initial conditions sometimes?

On Tue, Mar 4, 2025 at 11:36 AM Aaron Meurer wrote: > > It is true that we need to disable returning series solutions by > default. However, this solution is not a power series solution (if it > were, it would contain an order term). I think I confused this message with a different one you made o

Re: [sympy] Re: How to tell sympy dsolve not to solve the ode using series?

Yes, this is a known issue. It shouldn't be too difficult to fix, it just hasn't been done yet. However, series is currently the last thing that is attempted. So if you get a series solution, it really means it just doesn't know how to solve the ode. You can also check this using classify_ode: >>

[sympy] Interested in Rule based symbolic integration project

Hello, I am Sanjay an Engineering undergraduate. This rule based symbolic integration project with usage of RUBI and Matchpy interests me a lot. Is there any issues with regard to this project that I can contribute to ? If so please guide to them Thank You -- You received this message because

RE: [sympy] Re: How to tell sympy dsolve not to solve the ode using series?

Dear Aaron, maybe a dumb question from a retired engineer: 'Most' ODEs cannot be solved in closed form anyway - or so I recall. What is the point of trying to solve symbolically the 'few' that can be solved in closed form? Thanks, Peter -Original Message- From: sympy@googlegroups.com