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The symbolic ring (`SR`) in Sage currently considers itself to be a field and therefore also an integral domain:
```
sage: SR.is_field()
True
sage: SR.is_integral_domain()
True
```
However, it is c…
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I play around with sympy.physics.mechanics quite a bit. Every so often, I need to solve systems of linear equations.
I used _sympy.linsolve_ and _sympy.solve_ to do this, until I learned, from a lectu…
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This trivial example works as it should, where the independent parameter `t` is imported as `ModelingToolkit.t_nounits`:
```julia
using ModelingToolkit
using DifferentialEquations
using ModelingTo…
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Document that for spherical coordinates theta is going from x to y and phi is going from xy-plane to z.
This definition of phi differs from the mathematically defined phi:
https://en.wikipedia.org…
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I am trying to use [widget events](https://ipywidgets.readthedocs.io/en/stable/examples/Widget%20Events.html) to make an interactive graph.
%matplotlib inline
import numpy as np
imp…
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I was trying to fit a relatively simple Emax model today which doesn't have any need for time or other parts. (That is where some of the other issues I just reported are coming up...)
When doing s…
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Calling any caching or interpolating function that uses `numpy.linalg.solve()` if `render_engine` is set to `MulticoreEngine()` may cause severe drops in performance if numpy is built with OpenBLAS an…
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I have a lot to do to improve the website.
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I'm having trouble using the custom Enzyme rule for solving differential equations defined here: https://github.com/SciML/DiffEqBase.jl/blob/master/ext/DiffEqBaseEnzymeExt.jl.
While most of the use…
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Hi, just found your library! Very exciting.
Were you planning to add support for ODE simulation with diffrax?
I use diffrax to simulate my models and optimistix to fit them, and more generally wo…