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Hi there -- Angler looks like an interesting project!
You probably know this already, but Autograd supports defining custom "primitive" operations: https://github.com/HIPS/autograd/blob/master/docs…
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Hi all,
If I want to give an initial value for a newton iteration, is this the right way by changing `x` in `pnewton_solver->Mult(b, x)`, where `pnewton_solver` is a `PetscNonliearSolver *` ?
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#### Summary:
Support solving a system of non-linear equations using one of the better supported unsupported modules in Eigen. An alternative would be to use KINSOL in Sundials, but I think Eigen wou…
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Hi, I am trying to solve ODE using Gekko in Python. I running Jupyter and Anaconda on WIn10 64bit,
my gekko model arguments are as follows:
```
m = GEKKO(remote = False)
m.options.IMODE = 4
m.…
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Note: accidently created this issue first before creating the math issue. The first comment below are relevant to the issue on the math repo.
#### Summary:
Expose the function described in math#11…
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@bhaveshshrimali (from #438):
> Thanks! I was starting to take a look at implementing the hyperelasticity demo. The most natural examples to follow seem to be linear elasticity, nonlinear poisson a…
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Hello everyone,
I receive spurious results using MATLABs inbuilt max or min function in an IRIS model file. While MATLAB of course evaluates e.g. min(0.105,max(1,3))=0.105, IRIS evaluates min(0.105…
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**Reported by fcasella on 19 Dec 2012 14:02 UTC**
Derivatives can be unknowns of nonlinear algebraic systems of equations, in particular when solving initialization problems.
Currently, there is no …
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In my work on a ECLIPSE-compatible restart facility for Flow, I am in the process of finalising the ability to restart Flow from a strictly ECLIPSE-compatible restart file (see PR OPM/opm-common#548).…
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I am new to FEM, and am integrating MFEM into software
**Currently:**
- I have .vtk UnstructuredGrid files that I read into a MFEM::Mesh, and then run various FEM simulations on them, converting b…