[sympy] GSOC 2020 Self-Introductory Post

Hello everyone !! I'm Harsh Gupta and am a 2nd Year Undergraduate student at IIT Indore pursuing a B.Tech in Civil Engineering.I have been programming since the last 2 years in Python and C++ and have been building various web and user applications in Python. I also take part in va

[sympy] GSoC Advice

Hi, I was asked for advice on having a successful summer as a GSoC student. So here I am. The main thing to keep in mind is that GSoC is much more than the summer and every other else follows. It is pretty easy to do just enough work to get passed but your aim should be do work which lives beyond

Re: [sympy] Re: GSoC 16: Solvers

> The way we are handling solve till now must be improved firstly as i have > seen in solve we get a list . it must be either object or a tuple. Please go through https://github.com/sympy/sympy/blob/master/doc/src/modules/solvers/solveset.rst On 22 March 2016 at 01:20, nishant shreshth wrote: >

[sympy] Re: GSOC - SYMPY (Solve and Solveset)

Please go though the following recent discussions about solve and solveset: * https://groups.google.com/forum/#!searchin/sympy/solve|sort:date/sympy/yEZHtkx7H3k/lckb3kxgAQAJ * https://groups.google.com/forum/#!searchin/sympy/solve|sort:date/sympy/XhgBx2bVFaA/pQJ3R039AQAJ On 21 March 2016 at 10:

Re: [sympy] Re: GSoc'16 Solver and Solveset

where multiple generators are handled >> -use something like this : >> https://github.com/sympy/sympy/pull/7523#issuecomment-62198981 >> to handle the XFAILed test test_real_imag_splitting1, this will be >> handled in the set module. >> >> 3.This is list

Re: [sympy] Re: Solveset in Symengine

converting the equation to polynomial one way or the other. On 20 March 2016 at 00:51, Harsh Gupta wrote: > I was also discussing this Nishant in real life, SymEngine **is not** > a C++ clone of SymPy, rather SymEngine aims to be very fast core for > SymPy and hopefully other Computer Algebr

Re: [sympy] Re: Solveset in Symengine

much. On 19 March 2016 at 21:09, Akash Trehan wrote: > > > On Friday, 26 February 2016 22:58:07 UTC+5:30, Harsh Gupta wrote: >> >> >Hi Akash, >> >> >1.) Sets module is clearly is a dependence for the solveset module, the >> > outp

Re: [sympy] SymPy Paper

I'm also interested. On 15-Mar-2016 3:21 am, "Anthony Scopatz" wrote: > Me too, obviously :) > > On Mon, Mar 14, 2016 at 4:19 PM Aaron Meurer wrote: > >> https://github.com/asmeurer/sympy-paper. >> >> Aaron Meurer >> >> On Mon, Mar 14, 2016 at 5:17 PM, Ondřej Čertík >> wrote: >> > On Mon, Mar 1

Re: [sympy] GSoC Student applications are open

You need to be more cautious this year because the website is new and I'm not sure if has been stress tested. I've heard in past melange crashed due to huge traffic. On 15 March 2016 at 00:56, SAMPAD SAHA wrote: > Thanks Aaron > > > I have registered for GSoC 2016 at the given program site. > Th

Re: [sympy] Mathpix - using sympy and deep learning to solve math from pictures of handwriting

The app looks cool, I was wondering if it is a Free Software (Free as in Free Speech). An issue I noted is that the latex2sympy repository does not mention any license, which by default means all the rights are reserved and you cannot use it without permission. You should contact the author and get

Re: [sympy] Re: GSoc'16 Solver and Solveset

be >> factored out of solve where multiple generators are handled >> -use something like this : >> https://github.com/sympy/sympy/pull/7523#issuecomment-62198981 >> to handle the XFAILed test test_real_imag_splitting1, this will be >> handled in the set modu

[sympy] Re: Solveset in Symengine

it. > 3) Also what polynomial algorithms would be necessary for solveset? > > On Fri, 26 Feb 2016 at 22:58 Harsh Gupta wrote: > >> Hi Akash, >> >> 1.) Sets module is clearly is a dependence for the solveset module, the >> output of solveset of set and the module als

[sympy] Re: Solveset in Symengine

Hi Akash, 1.) Sets module is clearly is a dependence for the solveset module, the output of solveset of set and the module also make heavy use of a lot of functionalities of Sets including intersection, union and especially imageset. SymPy's set are **very** flexible and we aim to have the capabil

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

I can also act as a backup mentor and help review applications. On 18 February 2016 at 08:57, Jason Moore wrote: > Ok great! Thanks for the work on that. > > > Jason > moorepants.info > +01 530-601-9791 > > On Wed, Feb 17, 2016 at 5:22 PM, Aaron Meurer wrote: > >> Ondrej and I rewrote the SymPy

Re: [sympy] Re: GSoc'16 Solver and Solveset

gt; -functions solvable by LambertW >> -functions that can be recast as polynomials with a change of >> variables this, for example; this can be >> factored out of solve where multiple generators are handled >> -use something like this : >> https://github.com/sympy

Re: [sympy] Re: Rails Girls Summer of Code 2016,

Though lack of mentors is a real logistical issue (I can't complain because I won't be mentoring this time). We need to recognize the fact that SymPy, like most of the other FOSS organizations has a serious lack of women participants. I highly recommend a reading of the article "Free as in Sexist

Re: [sympy] Re: SymPy's Scientific Impact

> Also I think only CRAN and PyPI Yes, they have mentioned it the README . The project is very new (it has only been two months since its release) so hopefully they will incorporate other scientific packages in the future. Professor Fateman you should

Re: [sympy] SymPy at PyCon India 2015

PyCon India was fun indeed, here are some feedback from the workshop: * Many of the workshop participants asked how does SymPy compare with other CAS like Mathematica, Maple and Matlab. We should update the SymPy vs X docs on the wiki. * The workshop was over represented by Data Scientists and th

Re: [sympy] GitHub protected branches

Cool, I vote for protecting our master branch. On 4 September 2015 at 21:29, Aaron Meurer wrote: > https://github.com/blog/2051-protected-branches-and-required-status-checks > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from

[sympy] New methods to solve symbolic equations

Recently we implemented a ConditionSet [1] object which abstractly represents a set of elements satisfying a particular condition taken from another set S: {x|Cond(x) is True for x in S} ConditionSet gives us the ability to represent unevaluated equations and inequalities in forms like `{x|f(x)=0

Re: [sympy] solveset_real(exp(I*x), x) for real `x`

ugh i forgot put `-1` > Sorry > Now equation is `solveset_real(exp(I*x) - 1, x)` now this should return > `ImageSet(Lambda(_n, 2*_n*pi), Integers())` > but currently returns `FiniteSet(0)` what about this ? > > On Wednesday, July 1, 2015 at 11:24:07 PM UTC+5:30, Harsh Gupta wr

Re: [sympy] solveset_real(exp(I*x), x) for real `x`

> Though `solveset_real` claims to be complete in terms of real solution > returned Well, solveset_real assumes that you are working in a real system, that means both the equation and the solutions are in a real domain. So solveset_real expect users to input equations like `exp(I*x) = 0` and it s

Re: [sympy] inverse_real use

Good catch, the first line (L39) is redundant, it should be removed. The second question you raised is also valid and this is a bug. Also please @mention me on the PRs on solveset, because the volume of activity on sympy's github I've unwatched the repo and I don't get notified for all the PR's. O

[sympy] Intersection of FiniteSets having symbols

For the new solveset module we are using the SymPy set object to represent a solution. So `solveset(x**2 - 1, x)` returns `{-1, 1}` and `solveset(x**2 - a, x)` returns `{-a, a}` where `a` is a symbol and stands for some parameter and `{-a, a}` is a FiniteSet object (from the sets module). With such

Re: [sympy] SymPy/SymEngine/PyDy Sprint at SciPy 2015

yes, got a financial aid from SciPy :) On 11 June 2015 at 13:09, Jason Moore wrote: > Great. Harsh, are you coming from India? > > > Jason > moorepants.info > +01 530-601-9791 > > On Wed, Jun 10, 2015 at 10:54 PM, Harsh Gupta > wrote: >> >> I'll also

Re: [sympy] SymPy/SymEngine/PyDy Sprint at SciPy 2015

I'll also be present for the sprints on Saturday 11th July. On 11 June 2015 at 00:11, Ondřej Čertík wrote: > On Wed, Jun 10, 2015 at 12:31 PM, Jason Moore wrote: >> I know several of us will be at SciPy (me, Jim, Aaron, Ondrej, ...). >> >> Are people planning to sprint? > > I do. > >> I need to

[sympy] Kharagpur SymPy dev sprint

Hi, Me, Shivam Vats and Abinash Meher are having a sympy code sprint tomorrow at IIT Kharagpur Central Library, Annex building at 8 PM (IST). Shivam will start with GSoC project, I'll clean up the issues related to sets and solvers. And since Abinash is new to the community we will introduce him t

Re: [sympy] Re: The great issue cleanup of 2015

Great initiative, I suggest adding `needs decision` to the classifier tag. It is for the issues for which we are not sure if they are valid or not. -- Harsh -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiv

Re: [sympy] [GSoC 2015] Solvers : Extending Solveset

umar, I would be GSoC Applicant to SymPy this year. I have >>> been following the SymPy Community for quite sometime now and have also got >>> around 11-12 patches Merged in the Code base. So, now, I have got a decent >>> idea of `How things works`. >>> >&g

Re: [sympy] Re: Changing Inequality solver output API to set Interval (as_set())

> Currently solve and solveset, both are dependent on the submodule inequalities.py (in solvers) for solving inequalities, which eventually also uses solve() You should replace the `solve()` in inequality.py with solveset_reals (solver for real equations). See https://github.com/sympy/sympy/issues

[sympy] Re: Wow. (was: Add pep8 config, use pep8 in travis (#8538))

It was great working with you Sergey. You and Matthew were the best combination of mentors I could have got. So, Thank you. -- 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

Re: [sympy] Re: transcendental equation solving

> 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

t we did. Here are some links: * Discussion on the mailing list: https://groups.google.com/forum/#!searchin/sympy/solvers/sympy/Oyz8SkR2fRk/RMpooqwu3oMJ * Action Plan on solvers: https://github.com/sympy/sympy/pull/2948 * My Proposal for GSoC 2014: https://github.com/sympy/sympy/wiki/GSoC-2014-Application-H

Re: [sympy] Re: problem in solving inequations

> Did I miss something ? Nope, There is a typo in above instructions, replace "smicbr" with "smichr". On 3 December 2014 at 14:52, wrote: > > Hi Chris, thanks for helping me. I've just installed git on my machine. > Then i've tried to > download the sympy git version with : > > git clone git:

Re: [sympy] Looking for wrong results

I have not personally encountered such results but this paper[1] by William Kahan should give you good number of examples. I encountered it while trying to implement symbolic interval arithmetic in SymPy. [1]: [How Futile are Mindless Assessments of Roundoff in Floating-Point Computation?](http://

Re: [sympy] Benefit of XFAIL over SKIP?

> What is the is benefit of all these XFAIL'ed tests? A passed XFAIL'ed test is reported. Just as a seemly unrelated change can make a test fail, a seemly unrelated change can also make the test pass and it important to be aware both the cases. On 7 August 2014 21:03, Peter Brady wrote: > This i

[sympy] Implementation of equation solvers.

The last meeting with Matthew implanted a really cool idea about solving equations. Suppose we have an equation f(x) which has finitely many solution a1, a2, a3, ... an. Then we can say that the solutions of equation f(x) = 0 are equivalent to the solutions of the equation `(x - a1)*(x - a2) ... (

[sympy] Re: Removing the UniversalSet

MatLab also have something similar to our UniversalSet http://www.mathworks.in/help/symbolic/mupad_ref/universe.html. On Saturday, 10 May 2014 23:33:12 UTC+5:30, Harsh Gupta wrote: > > This comes from the discussions on this PR > https://github.com/sympy/sympy/pull/7462#issuecomment

Re: [sympy] Including `as_dict` for FiniteSet

You should send us a PR with the implementation. There we see your code in proper context and figure out what the problem is. Also we don't accept patches on mailing list so you will have to send a PR anyway if you want the code to get merged. Go through the development workflow if you haven't alre

[sympy] Removing the UniversalSet

This comes from the discussions on this PR https://github.com/sympy/sympy/pull/7462#issuecomment-42111992 We have a class called UniversalSet which is supposed to be *set* which contains all the sets which we can define in Sympy. The problem is that we really don't "know" what our defined Univer

Re: [sympy] Re: GSOC 2014: Solvers

We are also wrongly simplifying y - (y**(1/(1 + I)))**(1 + I) as 0. In [58]: f Out[58]: y - (y**(1/(1 + I)))**(1 + I) In [59]: simplify(f) Out[59]: 0 On 17 March 2014 16:39, Harsh Gupta wrote: > >> We won't be able to support such output with our new output API > >>

Re: [sympy] Re: GSOC 2014: Solvers

ts use exclusively the new > >> > assumptions (assuming that is indeed what you are saying here). > >> > >> That is not what I'm saying. S.Integers and S.Naturals use new > >> assumptions. Most of the logic behind core sets doesn't explici

Re: [sympy] Re: GSOC 2014: Solvers

Sorry I accidently pushed Send, ( I was unconsciously entering some vim commands). Ignore the "For" after the example. -- Harsh -- 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

Re: [sympy] Re: GSOC 2014: Solvers

> > I'm not sure if the input_set API is as friendly as it could be. Most > users are going to want to just toss in relations with the rest of the > equations, especially if they can be expressed using the assumptions > or using inequalities, like > > solve([sin(x) - 1, x > 0]) > > or > > solve([x

Re: [sympy] Re: GSOC 2014: Solvers

this case. > > By the way, I didn't know that the sets use exclusively the new > assumptions (assuming that is indeed what you are saying here). Given > what I've seen in the new assumptions, I'm not so sure this is such a > hot idea (namely, the handlers have a ton of

Re: [sympy] Re: GSOC 2014: Solvers

> - Your example > > In[]: soln = solve(sin(x)*sin(y), (x, y), input_set = Interval(0, > 4)*Interval(0, 4)) > > is a bit confusing to me. The input_set argument gives a 2-dimensional > set, but how are you to know which axis is x and which is y? The axis is determined by the order of variables in

Re: [sympy] Re: Don't forget to submit your GSoC proposals in Melange

> The formatting differences between wiki and melange are a pain though. Yes, especially the part with code block. On 14 March 2014 21:20, Sachin Joglekar wrote: > I will post mine by today night on melange. The proposal should probably > be in its final draft then, so I wont have to change it

Re: [sympy] Re: GSOC 2014: Solvers

Hi, I have put my the first draft of the proposal on the sympy wiki. https://github.com/sympy/sympy/wiki/GSoC-2014-Application-Harsh-Gupta:-Solvers Please have a look, your suggestions will be valuable. On 22 February 2014 01:27, Harsh Gupta wrote: > I realize that there is less than a mo

Re: [sympy] Help with dsolve

Our constant simplifier work for only one variable. Someone might go try to implementing it for multiple variables. Our PDE module needs that. There a paper on this by Neil Soiffer called "Collapsing Constants" that deals with such stuff. http://www.cs.berkeley.edu/~fateman/papers/CollapsingConsta

Re: [sympy] Community input on chat

+1 for gitter. On 25 February 2014 08:16, Matthew Rocklin wrote: > I am exactly in Tim's situation. My situation has changed so that I no > longer care about private repositories. > > Going through the gitter login process I did not have to pass any page with > which I was uncomfortable. This m

Re: [sympy] GSoC 2014: Mathematics Projects - Ordinary Differential Equations, Series expansions, Group theory, Polynomials module

> Also, I will be able to complete fourier and laplace transforms during the > project (as suggested in the ideas list) , most probably in the first > two-three weeks. Currently sympy evaluates the transforms by simply computing their respective integrals. But this way we are not able to solve t

Re: [sympy] Re: GSOC 2014: Solvers

t; > > On Tuesday, 21 January 2014 16:25:13 UTC+5:30, Harsh Gupta wrote: >> >> Hi, I'm Harsh Gupta I will be GSOC applicant this year. I want to discuss >> the solvers idea given on the Idea's >> page.https://github.com/sympy/sympy/wiki/GSoC-2014-Ideas#solvers &

Re: [sympy] Re: computing the degree of polynomails

See, https://code.google.com/p/sympy/issues/detail?id=3223. On 15 February 2014 16:48, Sergey Kirpichev wrote: > > > On Saturday, February 15, 2014 2:58:07 PM UTC+4, Rishabh Kumar wrote: >> >> while using sympy i found that sympy is not able to compute the degree of >> polynomials and expressions

Re: [sympy] GSOC 2014: Solvers

February 2014 07:06, Aaron Meurer wrote: > You'll need an understanding of basic field theory to understand those > algorithms (maybe group theory too if they are using Galois theory). > > Aaron Meurer > > On Wed, Feb 5, 2014 at 4:09 AM, Harsh Gupta wrote: >> Sorry fo

[sympy] Policy on inclusion of code with wrong results.

nvironment variable `ONLY_COMPLETE_MODULES` which when set to true will allow only complete modules to be used. -- Harsh Gupta -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails fr

Re: [sympy] Re: An inequality sympy should be able to deduce?

Thanks for posting this on the mailing list. There's also a bug in the new `solve_univariate_inequalities` ``` In [2]: x = Symbol('x', positive=True) In [3]: y = Symbol('y') In [4]: solve_univariate_inequality(exp(x) > 1, x) Out[4]: False In [5]: solve_univariate_inequality(exp(y) > 1, y

Re: [sympy] GSOC 2014: Solvers

Sorry for being passive for some days. I was busy with assignments and some other stuff. > See the work by R. Zippel and S. Landau. Are you talking these articles: http://www.sciencedirect.com/science/article/pii/074771719290004N ( A note on “Zippel Denesting” by Susan Landau ) http://www.compu

Re: [sympy] Functions: Singularity and Continuity

My implementation works only with function defined as combinations and composition of rational functions, exp and log. I don't how clear my implementation is, so please feel free to ask for clarification. And also feel free to suggest your own ideas. On 29 January 2014 07:23, Aaron Meurer wrote:

Re: [sympy] GSOC 2014: Solvers

vable quintics are implemented in sympy." > > Apparently only for some of them: it does not solve > ``x**5 - 5*x**4 + 30*x**3 - 50*x**2 + 55*x - 21 = 0`` > > taken from http://en.wikipedia.org/wiki/Quintic_function > > > > > On Monday, January 27, 2014 3:11:37 A

Re: [sympy] GSOC 2014: Solvers

ve skimmed through it and it appears all of the techniques described there are implementable in sympy. On 25 January 2014 06:28, Aaron Meurer wrote: > On Fri, Jan 24, 2014 at 2:02 PM, Harsh Gupta wrote: >>>> Great to hear it. As noted on the ideas page, this one will require a >>>

Re: [sympy] GSOC 2014: Solvers

>> Great to hear it. As noted on the ideas page, this one will require a >> good deal of thought to be done in the application, so let's start >> discussing. Thanks a lot, and sorry for the late reply >> Another thing I'd like to know is if there's literature on solving >> algorithms, particularl

[sympy] GSOC 2014: Solvers

Hi, I'm Harsh Gupta I will be GSOC applicant this year. I want to discuss the solvers idea given on the Idea's page. https://github.com/sympy/sympy/wiki/GSoC-2014-Ideas#solvers Some of the aspect of the idea are discussed at https://groups.google.com/forum/?fromgroups=#!sta

Re: [sympy] Best way to find extrema of function over interval?

I'm working on imageset at https://github.com/sympy/sympy/pull/2723 and as you said it needs solve to give all the solutions. But I didn't know that solve may not give all the solutions even if there are only a finite number of them. Documentation doesn't state that, I'll try to add that asap. I s

Re: [sympy] Finding critical point of Piecewise functions

rdered so that the > first ones take precedence. We'll have to use either set subtraction or > boolean arithmetic here to remove parts. > > Again, I'm not sure how clear this was. Please ask for clarification where > needed. > > > > On Sun, Jan 5, 2014 at 11:4

[sympy] Finding critical point of Piecewise functions

is a general method to find the critical points of piecewise functions. -- Harsh Gupta -- 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+unsubscr...@googl

Re: [sympy] Re: Happy Holidays !!!!!

Merry Christmas to all !!! On 25 December 2013 22:28, Saurabh Jha wrote: > Merry Christmas to all folks! :) > > -- > 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 sy

Re: [sympy] GSOC 2014

mpmath module >> shipped with sympy. >> >> On 13 December 2013 13:54, Aaron Meurer wrote: >> > Sounds like a plan. Keep us updated on your project ideas. >> > >> > Aaron Meurer >> > >> > On Thu, Dec 12, 2013 at 12:46 PM, Harsh Gupta >&

[sympy] GSOC 2014

Hi, I'm Harsh Gupta a second year undergraduate student of Mathematics and Computing at IIT Kharagpur and I would be a applicant to sympy for GSOC 2014. I'm following the community for quite some time and I have also got two trivial patches merged in the code base. Though I'

[sympy] Re: GSoC 2013 Idea - Find Domain / Range / Continuity / Singularity of a Function

We might try to a rule based system to determine the points of possible discontinuity. For example the poles can occur only on roots of f(x) for a given function log(f(x)), and roots of g(x) if the given function is f(x)/g(x) and for all those points we might test the continuity using limits. F

Re: [sympy] Re: Fourier Transform of constants and positive powers of x.

e he can answer. > > Aaron Meurer > > On Wed, Oct 30, 2013 at 3:32 PM, Pablo Puente > wrote: > > Yes, this is a defect. > > > > I created in fact a Issue this week for it: > > https://code.google.com/p/sympy/issues/detail?id=4079 > > > > > >

[sympy] Fourier Transform of constants and positive powers of x.

>>> from sympy.integrals import transforms >>> FT = fourier_transform >>> from sympy.abc import x, k >>> FT(1,x,k) 0 Sympy evaluates the fourier transform of 1 as 0 though it is dirac_delta(k). Similarly sympy evaluates the fourier transform of powers of x as 0 as well. http://mathworld.wolfram.c

Re: [sympy] Re: Handling derivatives while evaluating the Inverse Laplace Transform of Functions

Sorry for a late reply. Though equivocally breaking the function into partial fraction can lead to bad results, applying partial fraction gives let us solve the inverse_laplace_transforms which are not solvable now. So, I think as of now we should go ahead with equivocally breaking the function in

Re: [sympy] Re: Handling derivatives while evaluating the Inverse Laplace Transform of Functions

I changed the inverse_laplace_transform function in sympy.integrals.transforms to first break the given function in partial fractions and calculate the inverse_laplace_transform as the sum of inverse_laplace_transform of the partial fractions. def inverse_laplace_transform(F, s, t, plane=None,

[sympy] Re: Handling derivatives while evaluating the Inverse Laplace Transform of Functions

Hi, Sympy is directly using inverse Millen formula Integral(exp(s*t)*F, (s, c - I*oo, c + I*oo)) to evaluate the inverse_laplace_transform function. But it is not working well with some functions which can be easily evaluated by hand. For example 1. A NotImplementedError is raised when I tr

[sympy] Handling derivatives while evaluating the Inverse Laplace Transform of Functions

you tell how should I proceed? I'm going a through a undergraduate course on transform calculus in my university. Thus I have a basic understanding of manually calculating Laplace and Inverse Laplace Transform of functions. -- Harsh Gupta -- You received this message because yo

Re: [sympy] Possible improvement in representation of rationals.

y result in very large numbers, > and it's also not uncommon to start with very large numbers in the first > place. > > Aaron Meurer > > On Feb 28, 2013, at 2:12 PM, Harsh Gupta wrote: > > Hi, > I think it would be better if we represent the rational numbers as a &

[sympy] Possible improvement in representation of rationals.

multiplication and division of primes a lot faster. -- Harsh Gupta -- 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+unsubscr...@googlegroups.com. To post to