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#### Describe the bug
I tested on two different machines and I got different results using SARIMAX. Is there an issue with using the solver 'lbfgs'? I would always get some results are off either b…
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```Julia
import Symbolics as Smb
using Nemo
using Groebner
Smb.@variables x, a, b
Smb.symbolic_solve(x * a ^ b + x, x)
# ┌ Warning: This expression cannot be solved with the methods available to…
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bc.. This is taken from: http://trac.sagemath.org/sage_trac/ticket/1235 In [1]: e = exp(1)
In [2]: t = Symbol("t")
In [3]: a = 0.004_(8_e**(-300_t) -
8_e**(-1200_t))_(720000_e__(-300_t)-11520000_e__…
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### Is there an existing issue for this?
- [X] I have searched the existing issues
### Problem description
Hi
I have a sketch design which has lots of 12.4mm holes which are constrained on…
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I used GAPS to generate a solver for an eight-variable problem. The problem has a quotient ring basis (degree = 80), and the template size is [1145, 1345]. While the generated solver can solve the pro…
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In order to avoid pathologies associated with particular numerical methods:
1. Use analytic solutions for von Bertalanffy, power-law (log transformed)
2. Use the inbuilt stiff solver for Canham
3…
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In `HighsMipSolverData::transformNewIntegerFeasibleSolution`, when an integer feasible solution for the presolved MIP is transformed and found not feasible for the original problem, an attempt to rect…
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This idea was previously suggested in #4218.
Since mpmath provides multiprecision interval arithmetic we can use it to implement the interval newton method for numerical solutions of algebraic equa…
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Hi, I am excited to try `difftrax` for my application, but am wondering about the recommended approach for the following.
I have an initial value ODE model that describes drug concentrations in var…
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This is the first issue in what I believe are multiple Flux bugs when it looks at [this huge function](https://github.com/tock/tock/blob/65dda58c893e5b1fb49da7e4389552584758d5e1/arch/rv32i/src/pmp.rs#…