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In #15422 there is a system of equations identified which runs into problem with `nonlinsolve` that might be resolved, but there is also the issue that systems of equations may be partially linear and…
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### Description
The tearing heuristics seem to prefer nonlinear equations as residual equations, which is reasonable if the nonlinear equation cannot be solved according to the desired causality.
…
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In the Python API of Casadi, is there any equivalent to the A\b command of Matlab? This is what I tried
```python
from casadi import *
A = DM([[1.0,3.0,5.0],[2.0,4.0,1.0]]) #A is 2x3
b = DM([[1.…
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The documentation of Modelica.Electrical.Analog.Examples.Resistor says
> This is a very simple circuit consisting of a voltage source and a resistor.
I don't agree with that.
Clearly the model lo…
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# Motivation
As things stand right now, multifreedom constraints are handled in a rather rigid manner. They are assumed to be imposed using master-slave elimination (hence the name: `MasterSlaveConst…
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% System 1: First pair of equations
% -24 - 8x = 12y
% 1 + (5/9)y = -(7/18)x
% Rearranging to solve for y:
% From first equation: y = (-24 - 8x)/12
% From second equation: y = -(7/18)x - 9/5
x1 = -1…
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This is from SO:
https://stackoverflow.com/questions/72544118/sympy-solve-keeps-running-and-doesnt-stop/72546272#72546272
Various methods to solve this are slow:
```python
t, g = smp.symbols('t …
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Hi!
I am testing BVP solvers but cannot figure how to obtain a non-uniform meshing for BVP problems.
The mesh that I get does get adapted but remains uniform (for that, I check sol.t).
Are the n…
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Hello,
I'm testing the library to find solutions of systems of linear equations, and the result I get is always wrong.
I give a couple of examples:
The following system has no solution:
x-y = 0
x…
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It looks like there's no support for array and matrix operations in `linear_expansion`, e.g. `broadcast`.
I also have found that the workaround of performing `scalarize` on everything prior to `lin…