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I was currently fitting nls models with more than 1 predictor variable - basically, a model with reponse written in function of concentration using a smooth approximation of a three-phase linear model…
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_Original ticket http://projects.scipy.org/scipy/ticket/1510 on 2011-09-05 by trac user deil, assigned to unknown._
It would be nice if scipy included numerical differentiation methods.
I'm not sure …
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Do unit specific variances in build_margins.R strictly need to be calculated row-by-row?
I've been calculating SEs in blocks of 10,000 manually since the default implementation was taking too long…
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```julia
julia> f1(x) = sum(@tullio res[i, j] := begin
x[i+2, j] - 2 * x[i+1, j] + x[i, j]
end)
f1 (generic function with 1 method)
julia> g…
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## Reason
FParser is a hot mess. It is not under active development anymore. Uses awkward multistage source generation and is set up to use explicit instantiation without the possibility to template …
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The solution to the second problem of 2.58 (Symbolic Differentiation) has several syntax errors that prevent it from executing in the browser:
- Unclosed parentheses on Line 22 (items_after_first)
…
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The following are "big picture" plans:
* `Op` can be put into its own package
* `Node` and `Graph` can be put into its own package
* `VM` can be put into its own package
* `Solver` can be put in…
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### .NET
https://github.com/mathnet/mathnet-symbolics
- Is most popular .NET computer algebra library
- Written in F# (less code to maintain but harder for outsiders to contribute)
- H…
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I am constructing an ODEProblem with u0 defined as dictionary, see function `build_problem` in below code. When doing so, solving the constructed problem errors with `no method matching oneunit(::Type…
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Hi, just a suggestion from a passer-by: I am interested in understanding the advantages of this library over raw mxnet and would love to see more discussion of it. Auto-differentiation definitely see…