Raphael Chinchilla

Taking derivatives with respect to only some elements of an array

3

This is a feature suggestion. I do not believe it currently exists. Suppose one has access to a function `f(x,p)` that, and this is the important part, **cannot be rewritten...

Zygote fails when using DAE with mass matrix and sensealg = InterpolatingAdjoint(autojacvec=ZygoteVJP())

10

Zygote gets an error when one solves a DAE with mass matrix and chooses `sensealg = InterpolatingAdjoint(autojacvec=ZygoteVJP())`. I have the gut feeling that this bug is somehow related to the...

add all POI with names

3

I have recently rediscovered Qwant maps (great work in the last year and a half, it looks great now). From what gather from some previous issues, it seems that Qwant...

More details on IPNewton implementation

5

I have recently started using Optim.jl. I have a complicated control optimization problem to solve, and I would need some more details on which implementation of primal dual method is...

Arbitrary constraints

5

Correct me if I am wrong, but it is not very clear in the documentation how would one go about defining constraints that are **not** "box" constraints. One of the...

[request] Optimization with cost functions that include determinants

7

I am trying to solve an estimation/optimization problem that contains a `log(det(Sigma))` where Sigma is a positive definite (symmetric) matrix where Sigma is an MX. However, I am getting an...

Concatenation and reshape of Array variables

1

I was playing around with concatenation and reshape of Array variables, and I found behaviors that seem to me to be either a bug that should be corrected or a...

Exporting gifs

1

Hi all, I have a LibreOffice impress presentation with several GIFs in it. I found this extension while looking for a way to export it to a pdf and maintain...

This is related to some other issues in here, such as #18. Suppose I have a notebook "Project 1" with a subnotebook "Todos" and another notebook "Project 2" with a...

Difference in the implementation of slicemap and mapcols

4

The implementation of slicemap and mapcols is fundamentally different. Intuitively, this is relatively weird because `mapcols(f,M)=slicemap(f,M,dims=1)` and `slicemap(f,M,dims=1)=reshape(mapcols(f,reshape(M,size(M,1),:)),size(M))` (if `dims` is not equal to 1, then one could just use...