Re: [sympy] Re: transcendental equation solving

2015-01-14 Thread Aaron Meurer
This is a good writeup. It would be great if you could add this or something similar to the GSoC ideas page. Aaron Meurer On Wed, Jan 7, 2015 at 1:48 AM, Harsh Gupta wrote: > > Thanks for the response :-). I have a few questions as follows: > > what are the other solvers that need to implemente

Re: [sympy] Re: transcendental equation solving

2015-01-07 Thread Sergey Kirpichev
On Wednesday, January 7, 2015 10:48:38 AM UTC+3, Harsh Gupta wrote: > > * There is a clear code level and interface level separation between > solvers for equations in complex domain and equations in real domain. > To be fair - this is a very subjective sentence. The clear advantage is new outpu

Re: [sympy] Re: transcendental equation solving

2015-01-07 Thread Harsh Gupta
> Is that result a data structure, or a string? It is a pretty printed ImageSet object. > (A data structure would be preferable since it could be used as input > for more activities.) That is an important property and internally `solveset` heavily rely on that. > Is it able to simplify to {n⋅π

Re: [sympy] Re: transcendental equation solving

2015-01-07 Thread Joachim Durchholz
Am 07.01.2015 um 08:48 schrieb Harsh Gupta: * `solveset` can return infinitely many solutions. For example solving for `sin(x) = 0` returns {2⋅n⋅π | n ∊ ℤ} ∪ {2⋅n⋅π + π | n ∊ ℤ} Whereas `solve` only returns [0, π] Awesome. Is it able to simplify to {n⋅π | n ∊ ℤ} ? (Though I guess you don't alw

Re: [sympy] Re: transcendental equation solving

2015-01-06 Thread Harsh Gupta
> Thanks for the response :-). I have a few questions as follows: > what are the other solvers that need to implemented in this year GSoC and some references to the algorithms that will be used in implementing those solvers. > when will this ideas page be updated. > Regards > Luv Agarwal > In GSoC

Re: [sympy] Re: transcendental equation solving

2015-01-06 Thread Richard Fateman
There has been extensive discussion over the years and continuing to today about what should be done when a computer algebra system is asked to "solve" sometime. The Maxima system mailing list, Mathematica stackexchange, and years of, well, mulling over what to do when (say) there are an infini

Re: [sympy] Re: transcendental equation solving

2015-01-06 Thread Aaron Meurer
On Tue, Jan 6, 2015 at 9:16 AM, Luv Agarwal wrote: > Thanks for the response :-). I have a few questions as follows: > >1. In GSoC last year there was a project on improvising solvers. I >wanted to know how much of that is implemented (the ideas page of this year >is not updated yet)

Re: [sympy] Re: transcendental equation solving

2015-01-06 Thread Sergey Kirpichev
On Tuesday, January 6, 2015 7:16:42 PM UTC+3, Luv Agarwal wrote: > > In GSoC last year there was a project on improvising solvers. I wanted to > know how much of that is implemented (the ideas page of this year is not > updated yet) as I am interested in working on solvers. > See https://github

Re: [sympy] Re: transcendental equation solving

2015-01-06 Thread Luv Agarwal
Thanks for the response :-). I have a few questions as follows: 1. In GSoC last year there was a project on improvising solvers. I wanted to know how much of that is implemented (the ideas page of this year is not updated yet) as I am interested in working on solvers. 2. what are the o

Re: [sympy] Re: transcendental equation solving

2015-01-05 Thread Aaron Meurer
SymPy does have nsolve, which uses mpmath, but in general, numerical algorithms are not represented well in SymPy, and you're better off using other libraries if that's what you're interested in. Aaron Meurer On Mon, Jan 5, 2015 at 4:34 PM, Sudhanshu Mishra wrote: > > Also, it can sometimes be

Re: [sympy] Re: transcendental equation solving

2015-01-05 Thread Sudhanshu Mishra
> Also, it can sometimes be more useful to have a numeric solution than a solution represented in symbolic form. And that's why we have libraries like scipy/numpy :) Regards Sudhanshu Mishra www.sudhanshumishra.in On Tue, Jan 6, 2015 at 4:20 AM, Luv Agarwal wrote: > Also, it can sometimes be m

[sympy] Re: transcendental equation solving

2015-01-05 Thread Luv Agarwal
Also, it can sometimes be more useful to have a numeric solution than a solution represented in symbolic form. -- 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+un