My previous message can be ignored -- as Aaron pointed out (thank you!)
this has been fixed, I was not using a recent-enough release. Sorry for
the noise.
Python 3.9.2 (default, Mar 31 2021, 11:25:52)
[Clang 10.0.1 (clang-1001.0.46.4)] on darwin
Type "help", "copyright", "credits" or
Hi,
I'm writing a proposal on the following project "Classical Mechanics:
Efficient Equation of Motion Generation with Python". As a first step, I
would like to contribute to it by finding where the functions are getting
slower through python profiling and add this as a pull request. But I'm
On Fri, 9 Apr 2021 at 13:35, Shri Keshavinee wrote:
>
> I'm writing a proposal on the following project "Classical Mechanics:
> Efficient Equation of Motion Generation with Python". As a first step, I
> would like to contribute to it by finding where the functions are getting
> slower through
Thank you!
This almost worked for me as is. My desired dependent variables are [w, y].
If I just pass those, then I don't get the solution for z=1. So I did two
solves:
1. Solve with my desired dependent variables (e.g. [w, y])
2. Identify the set of variables that are not in the solution (as
Hi all,
It is my pleasure to announce the final release of SymPy 1.8. The
wheel and sdist files for this release are already uploaded to pypi.
You can install sympy 1.8 with:
$ pip install -U sympy
There are a lot of changes since 1.7.1. The full release notes are here:
On Sat, 10 Apr 2021 at 01:17, brandon...@gmail.com
wrote:
>
> This almost worked for me as is. My desired dependent variables are [w, y].
> If I just pass those, then I don't get the solution for z=1. So I did two
> solves:
>
> 1. Solve with my desired dependent variables (e.g. [w, y])
> 2.
> In your problem would it make more sense to have an API based around
eliminating variables rather than solving for them?
That might work. Eventually, the solution gets passed to some numerical
code that needs to have values for all the symbols that obey the
constraints in the system of
Given the snippet below:
from sympy import symbols, solve
w, x, y, z = symbols("w x y z")
equations = [
w + x + y - 1,
z - 1,
w/(w+y) - 0.5,
w/(w+y) + y/(w+y) - 1
]
soln = solve(equations, (w, x, y, z), dict=True)[0] # accept first solution
print(soln)
the soln is:
{
w: y,
just list the variables for which you want to solve -- in this case, leave
off the "x" and you will get
```
>>> soln
[{w: 0.5 - 0.5*x, y: 0.5 - 0.5*x, z: 1.00}]
```
see also https://github.com/sympy/sympy/issues/2720
/c
On Friday, April 9, 2021 at 1:32:51 PM UTC-5
