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Is there a way to specify a tolerance on the cost rather than ftol/gtol/xtol?
When using least_square to find multivariate, bounded roots (please suggest alternatives if it exists in scipy.optimiz…
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While `minpack` is an important package among the Fortran legacy codes it's age is apparent.
The [Ceres Solver](http://ceres-solver.org/features.html) is a non-linear least squares package written …
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Hi there,
I'm solving the heat equation using finite difference method, in which an nonlinear solver is needed.
I found kinsol will be broken after several steps. The error is as follows.
```
…
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Hey @patrick-kidger , I recently started exploring diffrax (just realised how powerful diffrax is!, and kudos for the amazing work!). I was thinking if there was a way to solve the initial value probl…
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Hi Jaromir,
It seems in the old version of IRIS 20151016 we have the flexibility to use **lsqnonlin** with algorithm with **'levenberg-marquardt'** or **'trust-region-reflective'** with the most …
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Who is actually scaling fenics?
Do the fenics and fenics-hpc developers coordinate/overlap? Are changes ever pushed from fenics-hpc to fenics?
Why does the HP-FEM MOOC use fenics-hpc and dolfin…
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**Is your feature request related to a problem? Please describe.**
For model convergence, we know that adding homotopy is a good thing, but where is it best to add it without having to go through eve…
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## Problem statement
Hi Gridap! Thanks for making a absolutely great FEM software library.
I am working on time-dependent problems, but unfortunately am I not able to get your solvers to work pro…
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Okay I'm trying to solve this particular set of ODEs and I'm unable to find out where I'm going wrong.
```python3
import sympy as sp
R = sp.Function('R')
F = sp.Function('F')
t = sp.var('…
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Hi there!
This issue is a catch-all for documentation improvement suggestions. I'll keep it updated with things to work on, rather than having lots of separate issues.
* If you have suggestion…