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Hi all,
I'd like to run a simulation using an implicit membrane model. Before I jump to the full system, I tried making a reduced test system based on some of the examples I found online. I'm seein…
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Currently I use the sobel operator to get the normal from the noise values, but I could skip that when I would know how to use the partial derivatives.
How is the normal calculated from dx,dy?
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This [blogpost](https://cityinthesky.co.uk/posts/2020/collocation-for-finding-periodic-orbits-of-odes/) shows working collocation algorithm for detection of periodic orbits of ODEs. It could be implem…
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Hey, I was trying to create a mock image with the ImageModel class. It does work with a Pseudo Jaffe profile, but I am getting this error when I try with a NFW_MC profile -
`
File ~/.local/lib/pyth…
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Appears to be an issue calculating the flux when rho is a vector.
```julia
julia> data = Nlayer_cylinder(a = 10.0, l = [1.0, 1.0, 1.0, 2.0], z = 5.0, ρ = [1.0, 2.0])
julia> flux_DA_Nlay_cylinder_…
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DynamicHMC does not deal well with incorrect deriatives. These can result from AD errors (conceptual errors in mature AD libraries are rare, but numerical corner cases can still happen), or bugs in ma…
tpapp updated
11 months ago
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The [optimParallel package](https://cran.r-project.org/web/packages/optimParallel/index.html) might be a way to speed up convergence by parallelisation. Currently, however, the API, resp. the optimize…
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Parcels currently lacks automatic computation of the derivative of a `Field`. A use case is computing the gradient in a diffusivity field. In the `AdvectionDiffusion` kernels, this is now implemented …
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I would like to add a function in the biro solver for the computation of the gradient of the chi squared with respect to Sersic shape parameters. I need it in order to use HMC and I think the best sol…
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see
#5409
#3224
#624
more flexible distributions and corresponding regression models can be created by monotonic, non-linear transformation of random variables.
My old code for creating di…