ring still apply even in a world where AI could rewrite an
entire framework from scratch. For instance, common code and protocols
allow systems to communicate with one another.
At the same time, there are a lot of software systems that are very
centralized right now because they are effectiv
, but not easy tasks).
Here are examples of existing token transformers for parse_expr
https://github.com/sympy/sympy/blob/master/sympy/parsing/sympy_parser.py.
My guide to the Python tokenizer module can also be useful
https://www.asmeurer.com/brown-water-python/
Aaron Meurer
Aaron Meurer
On Mo
There's no way to change the Python operator precedence, but you can
modify the string parsing in parse_expr() by passing in a transformer
for the tokenizer.
Aaron Meurer
On Mon, Aug 12, 2024 at 12:38 PM Paul Royik wrote:
>
> Hello.
>
> I'm trying to parse the ">
is substitution algorithm from
scratch by walking the expression tree.
I guess a max_replacements keyword argument could be added to subs or
replace, although this is the first time I've heard of someone needing
it.
Aaron Meurer
On Thu, Aug 1, 2024 at 11:49 AM Thomas Ligon wrote:
>
> I want
Your expression has four symbols, rate1, rate2, y1, and y2. When you
lambdify it you should include all those symbols, meaning you should
either also include y1 and y2 as parameters or substitute them for
numbers before lambdifying.
Aaron Meurer
On Mon, Jul 29, 2024 at 9:30 AM Matthew Robinson
SymPy
that could be benchmarked, so choosing the right things to benchmark
is important.
Aaron Meurer
On Thu, Jul 25, 2024 at 11:40 AM Asish Kumar
wrote:
>
> I was recently checking https://github.com/sympy/sympy_benchmarks and had
> some questions:
>
> 1. Are slow_benchmarks are also r
enough yet that the whole process should be done
automatically. All this does is waste maintainer time.
Aaron Meurer
On Wed, Jul 24, 2024 at 10:43 AM Sangyub Lee wrote:
>
> I notice a PR created today that is suspected to be generated by LLM (sorry
> if it is false accusation)
&
You haven't told solve() what variable to solve for, so it decided to
solve for R. If you want to solve for x, pass it as the second
argument, like
solve(R*a/x**2 + b*w**2*R + I*(R*b*w - R*a/x) - a**2*U*exp(I*(p)), x)
Aaron Meurer
On Mon, Jul 22, 2024 at 1:57 PM waltermeier_44
wrote:
>
so, if TARDIS has to be recompiled every time in order to install it
into the virtual environment, that could be a factor (SymPy is pure
Python, so installation time is not an issue). If this is an issue you
might consider caching nightly wheels for recent commits somewhere.
Aaron Meurer
On Mo
nline.informs.org/page/ijoc/editorial-statement#Software%20Tools
> )?
>
We don't have any rules about that. The journal might have rules. You'd
have to check with them. I expect the main thing is that if a SymPy
contributor ends up helping significantly with the implementation they may
ask t
On Tue, Jul 2, 2024 at 5:09 AM Oscar Benjamin
wrote:
>
> On Mon, 1 Jul 2024 at 18:04, Aaron Meurer wrote:
> >
> > On Mon, Jul 1, 2024 at 4:38 AM Oscar Benjamin
> > wrote:
> > >
> > > I think my preference is:
> > >
> > > 1. Use py
thon-flint CI to test
> against SymPy 1.13.
>
> Does anyone have any views on this?
I guess the most ideal would be if we could synchronize with the
upstream and have them promise that any release with a breaking change
would bump, say, the major version number. That we we could pi
== 0:
return S.Zero
return Expr.__new__(cls, m, n, l)
Note that you need to manually handle making sure inputs and outputs
are SymPy types. I would suggest looking at the source code for
Integral.__new__ and ExprWithLimits.__new__.
Aaron Meurer
On Tue, Jun 11, 2024 at 6:01 AM Michael Gfrerer
epend on SymPy I would suggest trying 1.13rc1 out and letting us
know if it affects you in a serious way.
Aaron Meurer
On Thu, Jun 6, 2024 at 9:08 AM Oscar Benjamin
wrote:
>
> Hi all,
>
> I have just pushed SymPy 1.13.0rc1 to PyPI. This is a prerelease that
> is being mad
e might be better
algorithms that can be implemented there anyways.
Aaron Meurer
On Thu, Jun 6, 2024 at 7:19 AM Sangyub Lee wrote:
> I think that there are other problems.
> If we generalize the domain of integral to set, it gives incompatible
> definition that what we had done befo
thing by making a custom subclass
of Expr. The question is what sort of operations you'd want the object to
support.
Aaron Meurer
On Wed, Jun 5, 2024 at 12:36 AM Michael Gfrerer wrote:
> One more try for the image:
> [image: setSimplify.png]
> On Wednesday, June 5, 2024 at 12:02:
elease and remove
them in a later release. In my opinion, this shouldn't be considered a
backwards compatibility concern. If anything, releasing this will let
us get more feedback on the feature.
Aaron Meurer
>
> Some of the others I will punt on for now because the release has been
>
ot is empty i.e. [ ]
>>
>> Thanks
>> Shishir Kushwaha
>>
>> On Sunday 26 May 2024 at 06:58:37 UTC+5:30 asme...@gmail.com wrote:
>>>
>>> With x1 = x2 = 0, arc_length_expr is equal to 0, meaning your eq3 is
>>> invalid. You can see this if you print eq3. It g
With x1 = x2 = 0, arc_length_expr is equal to 0, meaning your eq3 is
invalid. You can see this if you print eq3. It gets set to False,
because it is 0 = 10.
Aaron Meurer
On Sat, May 25, 2024 at 5:26 PM Shishir Kushwaha
wrote:
>
> In the following piece of code I am unable to get the val
) once you have your intervals to just refine a single
interval, which would at least be a little more efficient.
Aaron Meurer
On Tue, May 21, 2024 at 4:30 PM Ani J wrote:
>
> It doesn't look like just taking the minimum length works.
> Consider the following program:
>
>
ints.
IMO, we should just fix the function to not return intersecting
endpoints in the first place. The intervals aren't really isolating if
they intersect.
Aaron Meurer
On Tue, May 21, 2024 at 2:58 PM Ani J wrote:
>
> Yes, this seems like a good option, so keep reducing eps in a wh
1)
[((-29/10, -26/9), 1), ((-1, -1), 1), ((-10/11, -9/10), 1), ((1, 1), 1)]
Aaron Meurer
On Tue, May 21, 2024 at 2:51 PM Ani J wrote:
>
>
> Oh! I see, but i believe that the intervals overlap on the endpoints, is it
> possible to make the intervals completely disjoint??
> For example
7s_theorem
Aaron Meurer
On Tue, May 21, 2024 at 9:18 AM Chris Smith wrote:
>
> I strongly suspect that the roots returned by `Poly.intervals` have only one
> root in them (by definition). If you use `refine_root(lo,hi,eps)` to refine
> the root bounds to arbitrary width and give i
tell, the issues seem to be
biased towards more easy/straightforward ones (i.e., ones that are
easy to verify if a fix is correct or not). But still, if LLMs are
reaching a point where they can fix bugs completely automatically that
could be very useful.
Aaron Meurer
--
You received this message becau
n't want SymPy to become a datetime library. There are
already excellent libraries for that, and they are a lot of work to
write and maintain correctly.
Aaron Meurer
>
> Or is there anything from the units module you would like us to work on?
>
>
> It would be nice to have transfo
Francesco could probably give a more specific answer, but I imagine
you could find some things that need fixing in the units module if you
search in the issue tracker.
Aaron Meurer
On Mon, May 13, 2024 at 8:56 AM 'Henrique Miguel Cortes Soares' via
sympy wrote:
>
> Sorry for t
Yes, I probably should have shared this initially, but you can see a
list of the projects with their summaries at
https://summerofcode.withgoogle.com/programs/2024/organizations/sympy
Aaron Meurer
On Fri, May 3, 2024 at 12:25 PM wrote:
>
> Dear Aaron,
>
> I am happy to join in co
tions.
Aaron Meurer
On Wed, May 1, 2024 at 3:03 PM Sam Lubelsky wrote:
>
> Hello,
>
> I unfortunately just found out that my proposal was not accepted for GSOC,
> but I am still interested in forging ahead with my project this summer(though
> likely with a slightly scope
unity members if he is interested in helping out with this
project.
Aaron Meurer
On Wed, May 1, 2024 at 7:58 PM Samith Kavishke
wrote:
>
> Hi,
> Eventhough have not been selected, do we still have a chance to continue the
> project? Without the stipend.
>
> On Tuesday, April 2, 2024
students who applied this year and everyone who
submitted a patch. I would also like to thank all the mentors for helping
review patches and proposals.
This summer is looking to be another very productive one for SymPy, and I look
forward to it!
Aaron Meurer
--
You received this message because
em" and what's often called that contains many units that measure
the same quantities. But the SymPy unit systems define a single unit
for each quantity. So we may need to add multiple "systems" to
represent the imperial units.
Aaron Meurer
On Thu, Apr 25, 2024 at 1:56 PM Aaron M
I believe the imperial system should already be there, but if there's
anything missing, we should fix that.
Aaron Meurer
On Thu, Apr 25, 2024 at 10:06 AM 'Henrique Miguel Cortes Soares' via
sympy wrote:
>
> So, should the imperial system be added? If not, what system
I would say that new unit systems should be added only if they are
generally used and useful. General improvements to the units module
are always welcome. Francesco is the main maintainer of the units
module, so he would know more details on what needs to be done there.
Aaron Meurer
On Tue, Apr
s of SymPy. For example, there is
support for asymptotic expansions (aseries()), although I don't know
if Sterling's approximation is implemented.
Aaron Meurer
On Tue, Apr 23, 2024 at 1:25 PM Matthew Robinson wrote:
>
> Dear SymPy Developers Group,
>
> I hope this email fin
dumb questions, but I am not the greatest computer expert ☹
>
> Peter
>
> -Original Message-
> From: sympy@googlegroups.com On Behalf Of Aaron
> Meurer
> Sent: Sonntag, 14. April 2024 05:30
> To: sympy@googlegroups.com
> Subject: Re: [sympy] Re: SymPy integration
a grammar-based parser in parse_latex()) at
https://github.com/sympy/sympy/issues/26128.
Aaron Meurer
On Fri, Apr 12, 2024 at 12:17 AM Samith Kavishke
wrote:
>
> Are there any plans from our side for the LLM that use Sympy?
>
> On Friday, April 12, 2024 at 2:11:13 AM UTC+5:30 Franc
Actually it looks like other people are seeing this as well, and I
just saw it myself https://github.com/sympy/live/issues/21.
Aaron Meurer
On Tue, Apr 9, 2024 at 1:13 PM Aaron Meurer wrote:
>
> It would mean there's some issue with jupyterlite or pyodide. I
> checked and it loa
locker try seeing if turning it off fixes it.
Aaron Meurer
On Tue, Apr 9, 2024 at 9:29 AM Chris Smith wrote:
>
> Lately, the live.sympy.org page never finishes loading for me. Does anyone
> know why this might be?
>
> /c
>
> --
> You received this message because you a
Did you already submit your proposal? The deadline to submit was last
week, and we are unable to extend it.
Aaron Meurer
On Mon, Apr 1, 2024 at 6:48 AM Aquazod wrote:
>
> Hello,
> My name is Assem Ali and I'm currently working on my proposal for the Parsing
> project.
>
&g
I would open an issue to discuss this, if you haven't already. These
sorts of issues relating to what Add class is used to represent sums
generally end up being pretty tricky and involve a lot of subtleties.
Aaron Meurer
On Mon, Apr 8, 2024 at 12:33 PM Davide Pittet wrote:
>
> I thi
time coding them.
If there's any changes you want to make that aren't potentially
controversial, like bugfixes, you don't need to open issues for them
first.
Aaron Meurer
On Sun, Apr 7, 2024 at 2:02 PM Davide Pittet wrote:
>
> Hello everyone,
>
> following up the discussi
I've updated the ideas page with a link to an issue that discusses some
ways that benchmarks on GitHub Actions could be improved.
Aaron Meurer
On Mon, Apr 1, 2024 at 2:35 AM Sam Lubelsky wrote:
> Yeah, I see no good reason for why the benchmark results show the Master
> vs previ
ns in PRs would be disallowed,
the same as test failures in PRs are currently disallowed.
Aaron Meurer
On Mon, Apr 1, 2024 at 1:13 AM Jason Moore wrote:
>
> This is my opinion, not sure if it is shared, but I don't think anyone uses
> the information that is displayed on the pull
5) Where are the tests run now?
> On the project description it says " the results are run and hosted Ad Hoc",
> which I assumes means whatever computer is running all the other PR tests.
> Just want to make sure this is correct.
For the asv runs that run against every comm
We would generally only accept one proposal for each project, unless
the proposals are distinct enough that they can be done independently.
Aaron Meurer
On Thu, Mar 28, 2024 at 4:43 PM Tommaso Vaccari wrote:
>
> Thank you Aaron, I'll add it to the proposal, I have a question, more pe
I think we should try to include something like this in SymPy.
I'm a little confused by your screenshot. eq =@ c = d is not valid
Python syntax. Are you extending the parser somehow to make it valid?
Aaron Meurer
On Thu, Mar 28, 2024 at 2:10 PM 'gu...@uwosh.edu' via sympy
wrot
correctly.
Aaron Meurer
On Wed, Mar 27, 2024 at 5:36 PM Chris Smith wrote:
>
> In https://github.com/sympy/sympy/pull/26399 there is proposal to allow
> `subs` to recognize `Eq` so ` x.subs(x, 1) = x.subs( Eq(x, 1) ) = x.subs( [
> Eq(x, 1) ] ) = 1` but `x.subs(Eq(1, x)) = x`.
>
Remember that there is a requirement to make a pull request to SymPy.
You should list any pull requests you have made to SymPy in your
proposal.
Aaron Meurer
On Thu, Mar 28, 2024 at 1:43 AM Tommaso Vaccari wrote:
>
> Hello everyone,
> Here's my proposal, I would like to seek
past years, we've accepted ~5 people each year and I would guess
this year will likely be around the same number. You can look at the
reports on the wiki to see the actual numbers for each year.
Aaron Meurer
On Tue, Mar 26, 2024 at 7:13 AM Xianrui “Oliver” Teng
wrote:
>
> Dear mentors,
You can put it on the wiki if you like to get public feedback. If
there isn't a page for it, it just means no one has created it yet.
Aaron Meurer
On Mon, Mar 18, 2024 at 11:13 AM Tommaso Vaccari wrote:
>
> Ah ok thanks, I was asking because I have seen that in the previous years
&g
think the core of it does need to remain
independent of SymPy's types, especially if we want to try to write a
Rust backend.
Aaron Meurer
On Tue, Mar 12, 2024 at 6:29 PM Samith Kavishke
wrote:
>
> Hi,
> If we are maintianing matchpy as our own repository, Is it okay for us to
>
ife.) It was also of importance to me that functions
> would look familiar, sin(x), not Sin[x]. Instead of simply using
> SymPy I finally found myself wanting to improve the library,
> but that is another story.
Aaron Meurer
On Sun, Mar 10, 2024 at 10:31 AM Oscar Benjamin
wrote:
>
degree different packages support older
versions.
Aaron Meurer
>
> SymPy itself broadly tries to have wide version support for other
> packages like numpy just because without listing them as hard
> dependencies there is no way to indicate which versions sympy is
> compatible
Mathics has a license that makes it incompatible with sympy. But
regardless, I think we should find a way to make RUBI work without
having to build a full Wolfram language interpreter.
Aaron Meurer
On Sat, Mar 2, 2024 at 10:10 AM Samith Kavishke
wrote:
>
> Is that means this project
Yes, that idea is new this year.
Aaron Meurer
On Sun, Mar 3, 2024 at 2:08 AM Samith Kavishke
wrote:
>
> If that so, what are the ideas that we can really contribute? I hope
> "Enhancing the flexibility of MatchPy" is still needed.
>
> On Sunday, March 3, 2024 at
I've Cced Francesco Bonazzi about the Wolfram Interpreter idea. It
relates to the RUBI project, but I don't know whether it is something
that is still needed for it. Personally I would prefer to avoid
creating a Wolfram Language interpreter if possible.
Aaron Meurer
On Sat, Mar 2,
the test twice, once with
distribute(False) and once with distribute(True) (because the current
behavior also has to continue to work and be tested). This is how the
_both_exp_pow decorator works
https://github.com/sympy/sympy/blob/ab2fb691a90457b65bbf2a7c091c8265be9cee09/sympy/testing/pytest.py#L
esult would be more tricky
> than one might expect.
I might not be following exactly what you are saying here, but
wouldn't something like
assert f() == 2*(x + y)
work regardless of whether distribution is enabled or not? It will
either happen to both sides of the equation or to neither
nyway, as even currently
automatic distribution is not guaranteed. For example, it doesn't
happen with 2*x*(x + y). And it's not uncommon to have un-distributed
expressions because functions like factor() create them.
Aaron Meurer
On Thu, Feb 22, 2024 at 2:15 PM Chris Smith wrote:
>
&
specific test passes with
automatic distribution turned off (similar to this one
https://github.com/sympy/sympy/blob/ae13ee38f54aa9c8944ef7d103dda778d2a39dbd/sympy/testing/pytest.py#L291).
That way we can start fixing the code incrementally, instead of taking
an "all or nothing" approach, which ha
ings after the fact as Chris suggests is
probably the better solution. There's really no guarantees about what
the form of an expression from diff() will look like.
Aaron Meurer
On Sun, Feb 18, 2024 at 12:10 PM Chris Smith wrote:
>
> Autodistribution of Number into an Add is how
I think maybe there were some checks that were done by flake8 that
weren't yet implemented by ruff. I don't know if that's still the
case. I agree we could probably just use ruff if it is doing
everything flake8 does.
Aaron Meurer
On Thu, Feb 15, 2024 at 6:50 AM Shishir Kushwah
The order argument to the printers is definitely under-documented.
This has been an issue for some time.
Aaron Meurer
On Tue, Feb 13, 2024 at 10:41 AM Thomas Ligon wrote:
>
> Thanks! This does exaclty what I wanted.
> Now, for the question, should I be embarassed for not finding it mys
or, as this can break other things. Instead, you should use the
existing flags in the printer in question, or customize the printer
with a subclass if the built-in behavior doesn't meet your needs.
Aaron Meurer
On Sat, Feb 10, 2024 at 1:58 PM Thomas Ligon wrote:
>
> I am trying
t/configuration.html#configuration-file.
This should be a straightforward thing to change if you want to make a
PR.
Aaron Meurer
On Fri, Feb 9, 2024 at 3:51 PM Shishir Kushwaha
wrote:
>
> I am getting the same errors on the master branch as well . Has it got
> something to do with the de
Another thing I forgot to mention: new this year is small projects,
which are 90 hour projects, in addition to the 175 and 350 hour
projects. Right now, none of the ideas specify 90 hours, but we should
probably add some smaller projects to the list.
Aaron Meurer
On Wed, Jan 24, 2024 at 11:49 AM
dependencies,
you can ignore those tests.
xfail means that a test is expected to fail. These are tests that are
added for behavior that doesn't work yet. You can ignore these.
Aaron Meurer
On Fri, Feb 9, 2024 at 10:28 AM Shishir Kushwaha
wrote:
>
> S and X have been coming on a few test when
The slotscheck test is run on CI but isn't included in the normal
local tests run. If you want to run it locally you will need to
install slotscheck and run 'slotscheck sympy/'
Aaron Meurer
On Fri, Feb 9, 2024 at 2:02 PM Shishir Kushwaha
wrote:
>
> I am getting an error in
I'll also add that if you want to, we'll give triage permissions to
just about anyone so they can go through and label old issues (triage
permissions give you permissions to label issues). Just ask me or
Oscar.
Aaron Meurer
On Mon, Feb 5, 2024 at 2:25 PM Oscar Benjamin
wrote:
On Fri, Feb 2, 2024 at 3:28 PM Oscar Benjamin
wrote:
>
> On Fri, 2 Feb 2024 at 21:52, Aaron Meurer wrote:
> >
> > On Fri, Feb 2, 2024 at 9:41 AM Oscar Benjamin
> > wrote:
> > >
> > > I think that probably the right way to do this is just for SymPy to
email.
Aaron Meurer
On Fri, Feb 2, 2024 at 10:36 AM Shishir Kushwaha
wrote:
>
> Do I need to add my details everytime to thee .mailmap file when making a PR
> , I did it in my first PR as mentioned in the documentation but when creating
> a new comitt on another issue , the aut
the benefits, so requiring an opt-in is just an extra step
for those people. The only way this wouldn't be the case is if we add
flint as a dependency in the conda package like we do for gmpy, but it
sounds like it's a bit early to do that.
Although I'm wondering about Sage. Does Sage a
I'm not sure what's going on then. I just tested the docker container
and it works for me. You may need to delete the container and rebuild
it.
Aaron Meurer
On Thu, Feb 1, 2024 at 1:15 PM Shishir Kushwaha
wrote:
>
> Yes that's what I did , I followed the steps mentioned
your local environment and build without using docker.
Aaron Meurer
On Wed, Jan 31, 2024 at 1:43 AM Shishir Kushwaha
wrote:
>
> I was trying to build documentation using docker and on running the commands
> mentioned in the documentation , I was getting this error .
>
>
wer people?
I personally don't really like the low hanging fruit ideas because
they generate a lot of low quality applications and noise, but at the
same time, we have definitely had some good people in the past who
have started with such projects.
Aaron Meurer
On Wed, Jan 24, 2024 at 4:16 PM Os
just confusing otherwise. I already submitted the application with the
link to https://github.com/sympy/sympy/wiki/GSoC-Ideas, so whatever is
on that page will be "the ideas page".
Aaron Meurer
On Wed, Jan 24, 2024 at 12:54 PM Oscar Benjamin
wrote:
>
> Hi Aaron,
>
> I think
can't mentor but
want to help review applications, just let me know.
If you are someone who is interested in applying to SymPy for GSoC,
start here. https://github.com/sympy/sympy/wiki/GSoC-Student-Instructions
Aaron Meurer
--
You received this message because you are subscribed to the Goo
icked up? I'm really only
> interested in this for static presentation output (pdf, html) so it wouldn't
> matter if it doesn't work in interactive modes.
I think the only way to know if it will work or not is to test it. I
suspect it will work for pdf output, but I have no ide
to use, I recommend using Jupyterlab or Jupyter notebook. If
you are running into performance issues, it is likely the issue has to
do with SymPy itself rather than your interpreter.
Aaron Meurer
On Mon, Jan 15, 2024 at 2:33 AM Abhay Kumar wrote:
>
> Hi
> I have gone through this contribut
e on it if people like it.
Aaron Meurer
--
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 view this discussion on
ndows.
Of course, you can also just run SymPy in a Jupyter notebook, which
will render output using MathJax, which generally looks better than
the Unicode output, and works on any platform.
Aaron Meurer
On Mon, Jan 1, 2024 at 11:45 PM Robert Dodier wrote:
>
> Hi, I am working on a nicer
y specific solutions for you.
Aaron Meurer
On Thu, Dec 7, 2023 at 10:17 AM Mario Lemelin wrote:
>
> If I had one functionality to have in Sympy, it would be the possibility to
> get access to a list of symbols that I am using in my notebook. A function
> called, let's say LstSymbol
nd run
all" in your notebook to reset the state and ensure everything runs
again.
Aaron Meurer
On Mon, Dec 4, 2023 at 10:24 AM Mario Lemelin wrote:
>
> Hello,
> This is my first time. Just wondering if there is a command that I can do
> when, in a jupyter notebook, when I want to
to upstream it. I'm excited to see that
codegen for matrix expressions is finally starting to improve.
Aaron Meurer
On Fri, Oct 27, 2023 at 12:31 AM Jason Moore wrote:
>
> Hi,
>
> I've made a blog post summarizing all the work we did for 1/3 of the CZI
> grant:
>
&
mPy classes. If you want to
use NumPy to do numeric calculations on these expressions, this should
be done explicitly at the end after converting your SymPy expression
into a NumPy function using lambdify().
Aaron Meurer
On Thu, Nov 2, 2023 at 4:45 AM Lenni Lemoy wrote:
>
> Hi Aaron, than
1.3 I might want to work on the LLL-parts first
> while waiting for 1.1.3 to become available.
There's no reason to not ask this question. And
anyways, Oscar mentioned to me that he wants to make a release soon so
(hopefully) it should be out before the end of the year, if not month.
Yes, although a few pages are only available in the dev docs
(https://docs.sympy.org/dev/index.html). All the relevant pages are
linked to from the blog post.
Aaron Meurer
On Thu, Nov 2, 2023 at 3:12 AM wrote:
>
> Dear Aaron,
>
> Thanks!
> Is this new documentation available now?
I have written a blog post about the documentation work that I did as
part of the CZI EOSS cycle 4 grant.
https://labs.quansight.org/blog/sympy-documentation
Feedback on the new documentation pages or documentation feedback in
general is always welcome.
Aaron Meurer
--
You received this
s.html#separate-symbolic-and-numeric-code
Aaron Meurer
On Wed, Nov 1, 2023 at 8:15 PM Lenni Lemoy wrote:
>
> Hi everybody,
>
> I just started using SymPy, and tried to multiply a matrix M by a vector x
> holding sympy.symbols.
>
> I expected that M*x will be a vector again, but it
I think it can be added. Can you make a pull request?
Aaron Meurer
On Wed, Oct 4, 2023 at 10:18 AM Mathias Louboutin
wrote:
>
> Hi
>
> Would it be possible to add our project devito:
>
> https://www.devitoproject.org/
>
> to the "Project using sympy" in the d
you have absolutely no control over how much computation
is done. And you end up with defaults that try to do way too much
computation, which ends up slowing things down.
Aaron Meurer
>
> I don't really appreciate the preference for using `is_gt(a,b)` instead of
> `(a > b) is S.tr
;s the thing that causes
SymPy to hang on very simple things that should return instantly (see
https://github.com/sympy/sympy/issues/10800 for another example of
this). We need to move to a model where evalf is never called
automatically, except for cases where it is known that it will be very
chea
Also I resubmitted part 1 at the request of the HN mods and it has
some comments as well https://news.ycombinator.com/item?id=37430759
Aaron Meurer
On Fri, Sep 8, 2023 at 1:09 AM Aaron Meurer wrote:
>
> I posted this to Hacker News, where it got some comments.
> https://news.ycombi
By the way, if you install SymPy from conda-forge, they gmpy2 will be
installed automatically. If you use conda-forge chances are you've already
been using it this whole time.
Aaron Meurer
On Fri, Sep 8, 2023 at 1:13 AM wrote:
> Dear Oscar,
>
> Thanks!
> I installed it (I used
I posted this to Hacker News, where it got some comments.
https://news.ycombinator.com/item?id=37426080
Aaron Meurer
On Wed, Sep 6, 2023 at 5:08 PM Oscar Benjamin
wrote:
>
> Hi all,
>
> I have a new blog post following the last one:
> https://oscarbenjamin.github.io/blog/czi/post
ally try using it it will lead to an endless number of bugs and
unexpected behavior.
Basically, when evaluation happens all the time and certain invariants
about expressions always hold, then functions are written assuming
those invariants. It isn't even done intentionally most of the time.
The only wa
On Fri, Sep 1, 2023 at 4:12 AM Oscar Benjamin
wrote:
>
> On Fri, 1 Sept 2023 at 06:45, Aaron Meurer wrote:
> >
> > I like the idea of using some faster linear algebra as a preprocessor
> > to reduce the size of the problem to be solved. You could then take
> > th
just the
linear system it generates.
I'm also wondering if you've thought about symbolic constants and if
there's any tricks you could do to support them. I think there might
be, especially when still thinking about things in terms of just using
faster linear algebra as a pre-processor
some heuristics
like the ones used here in heurisch could help it out.
Actually it wouldn't be much work to generalize this to something that
gives an exact answer at least some of the time. For example, you
could use nsimplify() to guess at exact values for numeric
coefficients. As long as di
hereas matrices are
used all over the place, so focusing on matrices for now can lead to
bigger performance wins.
Aaron Meurer
>
> It might be best if the result is assigned to a variable so as to
> exclude the cost of converting it to a string.
>
> I am sure I am teaching my grandmother to su
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