Fredrik Bagge Carlson
Fredrik Bagge Carlson
While working with MTK in Pluto, I noticed several issues with the latex rendering. Here are some of the ones I managed to turn into MWEs   there are...
MTK currently does not use the features of Documenter.jl that runs code while building the documentation and signals if the code fails. As a consequence, we often get reports from...
Following up on the discussion in https://github.com/SciML/ModelingToolkit.jl/issues/1303#issuecomment-960857224 It would be beneficial to have a version of `dae_index_lowering/tearing` that is aware of `unbound_inputs` in the sense of #1322 The motivation is...
MTK currently has the `Difference` operator that operates on `x(t)`, producing `x(t+dt) - x(t)`. Control-systems design and analysis in discrete time typically employs the shift operator, which operates on `x(t)`...
This PR relies on - https://github.com/JuliaSymbolics/Symbolics.jl/pull/454 @YingboMa I have treated discrete and continuous equations the same here. This allows you to get a bit further with discrete systems, but I'm...
This PR introduces the operators `Sample, Hold, Shift` as well as functions to query their presence in expressions and equations. For background, see discussion in - https://github.com/SciML/ModelingToolkit.jl/issues/1307 The intention is...
This PR implements the `SampledTime` operator proposed by @jonniedie in https://github.com/SciML/ModelingToolkit.jl/issues/894#issuecomment-805893878 It provides a convenient interface between the continuous and discrete time domains, examplified by ```julia julia> @variables t x(t);...
From slack: I recently noticed a performance regression in `conv` ```julia using Images, DSP # before pulling master img = randn(1000,1000) kernel = Kernel.LoG(4) @btime DSP.conv($img, $(kernel)) # 42.050 ms...
When performing several similar convolutions, it would be convenient to have a facility similar to `plan_fft` that creates a workspace structure with caches for `conv`, so that `conv!(plan, u, v)`...
I'm not sure if there is anything preventing this, but it would sometimes be convenient to be able to ask about the labels in an axis, similar to how it...